JP6510366B2 - AC voltage output device - Google Patents

Description

  The present invention relates to an alternating voltage output device.

For example, a single-phase three-wire distribution system is adopted in a domestic household distribution system. According to the single-phase three-wire system, for example, when two voltage lines respectively supply a voltage of 100 V, a voltage of 200 V can be output by the two voltage lines, one voltage line and one line A voltage of 100 V can be output by the middle line of (see, for example, Patent Document 1).
[Prior art document]
[Patent Document]
[Patent Document 1] Japanese Patent Application Publication No. 2010-110041

  In order to convert the height of the voltage output from the distribution line drawn into the home from the distribution board or switchboard, it has been necessary to use an electromagnetic induction type transformer.

  In a first aspect of the invention, an alternating voltage output device is provided. The above AC voltage output device includes a first input terminal electrically connected to any one of the first terminal for outputting the first AC voltage and the second terminal. The above AC voltage output device includes a second input terminal electrically connected to the other of the first terminal and the second terminal. The above AC voltage output device includes a third input terminal electrically connected to any one of the third terminal for outputting the second AC voltage and the fourth terminal. The above AC voltage output device includes a fourth input terminal electrically connected to the other of the third terminal and the fourth terminal. The above AC voltage output device includes a first output terminal and a second output terminal for outputting AC voltage.

  The above AC voltage output device comprises (i) a voltage between the first output terminal and the second output terminal, and (ii) a voltage between the first input terminal and the third input terminal, the first input terminal and the A voltage measurement unit is provided that measures at least one of the voltage between the four input terminals and the voltage between the second input terminal and the third input terminal. The above AC voltage output device comprises a multi-input multi-output switch for switching the connection between the first input terminal, the second input terminal, the third input terminal and the fourth input terminal, and the first output terminal and the second output terminal. Prepare. The above AC voltage output device controls the multi-input multi-output switch so that the voltage between the first output terminal and the second output terminal satisfies a predetermined condition based on the measurement result of the voltage measurement unit. Control unit.

  In the above AC voltage output device, the predetermined condition is that the maximum value of the voltage between the first output terminal and the second output terminal is larger than the maximum value of the first AC voltage or the second AC voltage. May be included. In the above AC voltage output device, the voltage measurement unit may measure a voltage between the first output terminal and the second output terminal. In the above AC voltage output device, the control unit controls the multi-input multi-output switch to switch the connection destination of the first output terminal and the second output terminal, and the first output terminal measured by the voltage measuring unit and A determination unit may be included that determines a pair of input terminals such that the voltage between the second output terminals satisfies a predetermined condition.

  In the above-described AC voltage output device, the voltage measurement unit includes a voltage between the first input terminal and the third input terminal, a voltage between the first input terminal and the fourth input terminal, a second input terminal, and a third input terminal. Voltage between the second input terminal and the fourth input terminal may be measured. In the above AC voltage output device, the control unit may have a determination unit that determines a pair of input terminals at which the inter-terminal voltage is maximum based on the measurement result of the voltage measurement unit. In the above AC voltage output device, the control unit connects one of the pair of input terminals determined by the determination unit to the first output terminal, and connects the other of the pair of input terminals determined by the determination unit to the second output terminal May have a signal generation unit that generates a control signal to perform.

  The above AC voltage output device may further include a third output terminal. In the above AC voltage output device, the multi-input multi-output switch includes a first input terminal, a second input terminal, a third input terminal and a fourth input terminal, a first output terminal, a second output terminal and a third output terminal. It may be a 4-input 3-output switch that switches the connection relationship with the. In the above AC voltage output device, the control unit includes two input terminals different from the pair of input terminals among the first input terminal, the second input terminal, the third input terminal, and the fourth input terminal, and a third output. The multi-input multi-output switch may be controlled so that the terminals are electrically connected.

  In the above AC voltage output device, the multi-input multi-output switch may include a first switch electrically connecting the first output terminal to any one of the first input terminal and the second input terminal. In the above AC voltage output device, the multi-input multi-output switch may include a second switch electrically connecting the second output terminal to one of the third input terminal and the fourth input terminal. The above AC voltage output device may further include a third output terminal. In the above AC voltage output device, the first switch may electrically connect the third output terminal to the other of the first input terminal and the second input terminal, and the second switch may be connected to the third output terminal , And the other of the third input terminal and the fourth input terminal may be electrically connected.

  In a second aspect of the invention, an alternating voltage output device is provided. The above AC voltage output device includes a first input terminal electrically connected to one of the first terminal and the second terminal of the first connector that outputs the first AC voltage. The above AC voltage output device includes a second input terminal electrically connected to the other of the first terminal and the second terminal. The above AC voltage output device includes a third input terminal electrically connected to any one of the third terminal and the fourth terminal of the second connector that outputs the second AC voltage. The above AC voltage output device includes a fourth input terminal electrically connected to the other of the third terminal and the fourth terminal. The above AC voltage output device includes a first output terminal electrically connected to the first input terminal. The above AC voltage output device includes a second output terminal electrically connected to the fourth input terminal. The above AC voltage output device includes a first holding unit that holds the first connector. The above AC voltage output device includes a second holding unit that holds the second connector.

  In the above-described AC voltage output device, when the first holding unit holds the first connector such that a specific region of the first connector is disposed at the first position of the first holding unit, the first The terminal and the first input terminal are connected. In the above-described AC voltage output device, when the first holding unit holds the first connector such that the specific region of the first connection unit is disposed at the second position of the first holding unit, the second The terminal and the first input terminal are connected. In the above-described AC voltage output device, when the second holding unit holds the second connector such that the specific region of the second connection unit is disposed at the first position of the second holding unit, the third The terminal and the fourth input terminal are connected. In the above-described AC voltage output device, in the case where the second holding unit holds the second connector such that a specific region of the second connector is disposed at the second position of the second holding unit, the fourth The terminal and the fourth input terminal are connected.

  The above AC voltage output device comprises (i) a voltage between the first output terminal and the second output terminal, and (ii) a voltage between the first input terminal and the third input terminal, the first input terminal and the It further comprises a voltage measurement unit that measures at least one of the voltage between the four input terminals, the voltage between the second input terminal and the third input terminal, and the voltage between the second input terminal and the fourth input terminal. You may The above AC voltage output device may further include a third output terminal electrically connected to the second input terminal and the third input terminal. In the above-described AC voltage output device, when the first holding unit holds the first connector such that the specific region of the first connector is disposed at the first position of the first holding unit, When holding the first connector such that the second terminal is connected to the second input terminal and the specific region of the first connector is disposed at the second position of the first holder, the first terminal And the second input terminal may be connected. In the above AC voltage output device, when the second holding unit holds the second connector such that a specific region of the second connector is disposed at the first position of the second holding unit, When the second connector is held such that the fourth terminal and the third input terminal are connected and the specific region of the second connector is disposed at the second position of the second holder, the third terminal And the third input terminal may be connected.

  The above AC voltage output device may further include a display unit for displaying the measurement result by the voltage measurement unit. The AC voltage output device may further include a fifth input terminal electrically connected to any one of the fifth terminal and the sixth terminal of the third connector for outputting the third AC voltage. The AC voltage output device may further include a sixth input terminal electrically connected to the other of the fifth terminal and the sixth terminal. In the above AC voltage output device, the fifth input terminal may be electrically connected to the first output terminal. In the above AC voltage output device, the sixth input terminal may be electrically connected to the second output terminal.

  Note that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a subcombination of these feature groups can also be an invention.

1 schematically illustrates an example of a system configuration of a domestic power distribution system 100. FIG. An example of a system configuration of phase determination system 200 is shown roughly. An example of a system configuration of the main | base station 202 is shown roughly. An example of data table 400 is shown roughly. An example of a system configuration of the phase determination system 500 is shown roughly. An example of the appearance of voltage conversion adapter 600 is shown roughly. An example of a system configuration of voltage conversion adapter 600 is shown roughly. An example of a system configuration of 4 input 3 output switch 740 is shown roughly. An example of a system configuration of 4 input 2 output switch 940 is shown roughly. An example of a system configuration of voltage conversion adapter 1000 is shown roughly. An example of the external appearance of the plug insertion port 1012 is shown roughly. An example of the external appearance of the plug insertion port 1212 is shown roughly. An example of the external appearance of the plug insertion port 1312 is shown roughly.

  Hereinafter, the present invention will be described through the embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Moreover, not all combinations of features described in the embodiments are essential to the solution of the invention. In the drawings, the same or similar parts may be denoted by the same reference numerals and redundant description may be omitted.

  FIG. 1 schematically shows an example of a system configuration of a home distribution system 100. As shown in FIG. In the present embodiment, the home distribution system 100 includes a distribution line 110, a distribution line 120, a distribution line 130, and a distribution line 140. In the present embodiment, the distribution system of the distribution line 110 is a single-phase three-wire system, which supplies a voltage of 200 volts. The distribution line 110 has a first phase (L1 phase) voltage line 112 of the distribution line 110, a second phase (L2 phase) voltage line 114, and a neutral line 116. The phase difference between the first phase and the second phase is 180 °. The distribution line 110 may be connected to the distribution board of each home.

  The distribution system of the distribution line 120 is a single-phase two-wire system, and one of the lines is electrically connected to the voltage line 112 and the other line is electrically connected to the neutral line 116. The distribution system of the distribution line 130 is a single-phase two-wire system, one of the lines is electrically connected to the voltage line 114 and the other line is electrically connected to the neutral line 116. The distribution system of the distribution line 140 is a single-phase two-wire system, one of the lines is electrically connected to the voltage line 112, and the other line is electrically connected to the voltage line 114.

  Connected to the distribution line 120 are a power supply outlet 122 and a power supply outlet 124 that output a voltage of 100 volts. Connected to the distribution line 130 is a power outlet 132 that outputs a voltage of 100 volts. Connected to the distribution line 140 is a power outlet 142 that outputs a voltage of 200 volts. An outlet (sometimes called a socket) can be illustrated as each power supply outlet.

  In Japan, the shape of the plug insertion port differs between the socket for 200 volts and the outlet for 100 volts. Therefore, it is possible to distinguish between the outlet connected to the distribution line 120 or the distribution line 130 and the outlet connected to the distribution line 140. However, the outlet connected to the distribution line 120 and the outlet connected to the distribution line 130 can not be distinguished from the appearance of the outlet. Also, the distribution line 120 and the distribution line 130 are often arranged in an invisible place such as the inside of a wall, under the floor, in the ceiling or the like, and each outlet is connected to the distribution line 120 or the distribution line 130 To find out, it takes time and effort to disassemble the outlet.

  For example, using the non-grounded side terminal of the power supply outlet 122 and the non-grounded side terminal of the power supply outlet 132, it is possible to take out a voltage of 200 volts without using an electromagnetic induction type transformer. On the other hand, even if the ungrounded terminal of the power outlet 122 and the ungrounded terminal of the power outlet 124 are used, a voltage of 200 volts can not be extracted. Therefore, it is very useful if it is possible to easily determine the combination of outlets from which a voltage of 200 volts can be taken out.

  An example of the phase determination system 200 will be described using FIGS. 2 and 3. FIG. 2 schematically illustrates an example of a system configuration of the phase determination system 200 and the slave unit 204. FIG. 3 schematically shows an example of the system configuration of the parent device 202. As shown in FIG. In the present embodiment, the phase determination system 200 determines a combination of power supply outlets connected to distribution lines of different phases among two or more distribution lines.

  In the present embodiment, the phase determination system 200 includes a master 202 and a slave 204. In the present embodiment, each of the parent device 202 and the child device 204 includes a power plug 210, a voltmeter 220, a timer 230, an input unit 240, a storage unit 250, and a communication control unit 260. The power plug 210 has a pair of terminals 212 and 214 inserted into the power outlet. The parent device 202 includes a child device information acquisition unit 310, a determination unit 320, and a display unit 330. Each of the parent device 202 and the child device 204 may be provided with a housing that accommodates the above-described components. The phase determination system 200 may include a plurality of slave units 204.

  According to this embodiment, the value of the voltage output at the same time from two or more outlets can be measured. The phase determination system 200 can determine the presence or absence of a phase difference by comparing measurement results regarding voltages of two or more outlets. For example, in the phase determination system 200, when the phase difference between the output voltages of the two outlets is larger than a predetermined value (which may be referred to as a threshold related to the phase difference), the two outlets are distribution lines of different phases. It is determined that it is connected to

  The phase determination system 200 may be an example of a determination system. The parent device 202 and the child device 204 may be an example of a voltage measurement device. Master device 202 may be an example of a second voltage measurement device. The slave unit 204 may be an example of a first voltage measurement device. The power plug 210 may be an example of a first connection, a second connection, or a power connection. The voltmeter 220 may be an example of a first voltage measurement unit or a second voltage measurement unit. The timer 230 may be an example of a first time measuring unit or a second time measuring unit. The storage unit 250 may be an example of a first storage unit or a second storage unit. The slave device information acquisition unit 310 may be an example of an acquisition unit. The display unit 330 may be an example of an output unit.

  The voltmeter 220 measures the voltage output from the power supply outlet. For example, the voltmeter 220 measures the voltage output from the power supply outlet in which the power supply plug 210 is inserted, at least over a predetermined period. The predetermined period is determined in accordance with the frequency of the output voltage output from the power supply outlet. For example, when the frequency of the output voltage is 50 Hz, the period between the time when the maximum voltage is measured and the time when the minimum voltage is measured is 1/100 second. Therefore, a period of 3/100 seconds to 4/100 seconds or more may be set arbitrarily. The predetermined period may be 1 second, 3 seconds, 5 seconds, 10 seconds, 30 seconds, 1 minute, etc. It may be.

  The measurement period in parent device 202 and the measurement period in child device 204 may be the same or different. However, it is preferable that the measurement period of the parent device 202 and a partial period of the measurement period of the child device 204 be set to overlap.

  In one embodiment, the user inserts the power plug 210 of the slave 204 into a specific outlet to measure the output voltage of the outlet. In this state, the user carries the parent device 202 and moves it to another outlet installation location. The user inserts the power plug 210 of the parent device 202 into the other outlet described above to measure the output voltage of the outlet. Similarly, the user uses the parent device 202 to sequentially measure the output voltages of the plurality of other outlets. In this case, the handset 204 may continue to measure the voltage while the user carries the base unit 202 and moves to the installation location of the next outlet. In another embodiment, the user uses parent device 202 to measure the output voltage of a specific outlet while using slave device 204 to measure the output voltages of other outlets in sequence. It is also good.

  The timer 230 measures an elapsed time from a specific time. The above specific time may be 0:00:00 or may be the time when the time alignment of the master 202 and the slave 204 is performed, and the master 202 starts the voltage measurement process. It may be the time when an instruction for The accuracy of the timer 230 is determined according to the frequency of the output voltage at each outlet. The accuracy of the timer 230 is preferably 1/100 second or less.

  When parent device 202 receives an instruction to start the voltage measurement process, a process for setting the time of timer 230 of parent device 202 and timer 230 of slave device 204 before starting the voltage measurement process ( May be referred to as time setting processing). For example, when the input unit 240 of the master unit 202 receives an instruction to start the voltage measurement process, the timer 230 of the master unit 202 sets the time to the timer 230 of the slave unit 204 via the communication control unit 260. Send instructions to start the process. Thereby, time setting processing can be performed. Note that at least one of the master unit 202 and the slave unit 204 may execute the time setting process of the timer 230 when the power is turned on.

  In one embodiment, when the time setting process is performed, the parent device 202 and the child device 204 set the time of one timer 230 of the parent device 202 and the child device 204 to the time of the other timer 230. In another embodiment, the parent device 202 and the child device 204 set the time of the timer 230 of each of the parent device 202 and the child device 204 to the same time at the same timing.

  In yet another embodiment, the timers 230 of each of the master unit 202 and the slave unit 204 have radio controlled watches. When the time setting process is executed, the timers 230 of the master unit 202 and the slave unit 204 receive the standard radio waves and adjust their respective times. In this case, even if the timing at which the master unit 202 and the slave unit 204 receive the standard radio wave deviates to some extent, the time setting is not affected. Therefore, the timings at which the timers 230 of the master unit 202 and the slave unit 204 receive the standard radio wave may or may not be the same.

  The input unit 240 inputs identification information of the power supply outlet where the power plug 210 is inserted. The identification information of the power supply outlet is not particularly limited, but may be information indicating the installation location of the power supply outlet, a number assigned to the power supply outlet, and the like. As the input unit 240, operation buttons, a keyboard, a pointing system, a touch panel, a voice input system, and the like can be exemplified.

  The storage unit 250 stores the value of the voltage measured by the voltmeter 220 in association with the time when the voltage is measured. The storage unit 250 associates the value of the voltage measured by the voltmeter 220, the time when the voltage is measured, and the identification information of the power supply outlet where the power plug 210 is inserted when the voltage is measured. It may be stored. The time when the voltage is measured may be the time measured by the timer 230.

  In one embodiment, the storage unit 250 may record the value of the voltage at the time when the voltage measured by the voltmeter 220 indicates the maximum value and the minimum value. In another embodiment, the voltage measured by the voltmeter 220 may be recorded at predetermined time intervals.

  The storage unit 250 of the parent device 202 associates the time, the value of the voltage measured by the voltmeter 220 of the parent device 202 at that time, and the time measured by the voltmeter 220 of the slave device 204 at that time. It may be stored. The storage unit 250 of the parent device 202 has the time, the value of the voltage measured by the voltmeter 220 of the parent device 202 at that time, and the power plug 210 of the parent device 202 when the voltage is measured. Identification information of the power outlet, time measured by the voltmeter 220 of the slave unit 204 at that time, and identification information of the power outlet where the power plug 210 of the slave unit 204 was inserted when the voltage was measured And may be stored in association with each other.

  The communication control unit 260 controls communication with an external device. The communication control unit 260 may be various communication interfaces or communication controllers. The communication control unit 260 may correspond to a plurality of communication standards. In one embodiment, when the parent device 202 and the child device 204 transmit and receive information via a USB connection, the communication control unit 260 may be a USB controller. The parent device 202 and the child device 204 may be directly connected or may be connected via a communication cable. For example, the master unit 202 has a receptacle connector compliant with the USB standard, and the slave unit 204 has a plug connector compliant with the USB standard. As a result, the parent device 202 and the child device 204 can be directly connected.

  The parent device 202 and the child device 204 may be connected according to a wired communication standard other than the USB standard. In this case, the communication control unit 260 may be a controller that supports the above-described wired communication standard. As wire communication standards other than the USB standard, RS-232C, Ethernet (registered trademark) (IEEE 802.3), IEEE 1394, various standards for power line carrier communication, and the like can be exemplified.

  In another embodiment, when the parent device 202 and the child device 204 transmit and receive information by wireless communication such as WiFi (registered trademark), Bluetooth (registered trademark), Zigbee (registered trademark), infrared communication, visible light communication, etc. The communication control unit 260 may be an interface for wireless communication. Note that the communication method of wireless communication is not limited to the above. The wireless communication method may be a wireless LAN method other than WiFi, or may be a mobile communication method such as 3G or LTE.

  The slave unit information acquisition unit 310 acquires information related to the voltage measured by the voltmeter 220 of the slave unit 204 via the communication control unit 260. In one embodiment, the handset information acquisition unit 310 receives the information transmitted from the handset 204 to acquire the information related to the voltage. In another embodiment, the slave unit information acquisition unit 310 accesses the voltmeter 220 or the storage unit 250 of the slave unit 204 to acquire information on the voltage.

  For example, the child device information acquisition unit 310 accesses the storage unit 250 of the child device 204, and the value of the voltage measured by the voltmeter 220 of the child device 204 is associated with the time when the voltage is measured. Get the The slave unit information acquisition unit 310 accesses the storage unit 250 of the slave unit 204, and measures the value of the voltage measured by the voltmeter 220 of the slave unit 204, the time when the voltage is measured, and the voltage. Information associated with identification information of the power supply outlet (which is the power supply outlet that has output the voltage) in which the power plug 210 of the child device 204 was inserted may be acquired.

  Determination unit 320 determines a combination of power supply outlets connected to distribution lines having different phases. For example, the determination unit 320 determines whether or not the phase difference between the voltage measured by the voltmeter 220 of the master unit 202 and the voltage measured by the voltmeter 220 of the slave unit 204 is larger than a predetermined value. . This makes it possible to determine the combination of power supply outlets connected to distribution lines of different phases. Determination unit 320 determines the voltage measured by voltmeter 220 of master unit 202 based on the information acquired by slave unit information acquisition unit 310 and the information stored in storage unit 250 of master unit 202, and slave unit 204. It may be determined whether the phase difference of the voltage measured by the voltmeter 220 is larger than a predetermined value.

  In one embodiment, the determination unit 320 first analyzes the information of the voltage and measurement time measured by the parent device 202, and the information of the voltage and measurement time measured by the child device 204, and determines the parent device in the same period. Information of the voltage measured by 202 and information of the voltage measured by the slave unit 204 are extracted. Next, the determination unit 320 calculates the time when the voltage measured by the parent device 202 indicates a substantially maximum value. Similarly, the determination unit 320 calculates the time when the voltage measured by the child device 204 indicates a substantially maximum value. The time at which each voltage indicates a substantially maximum value may be corrected using a plurality of data indicating a substantially maximum value.

  For example, if power is normally supplied, the voltage is fluctuating periodically. Therefore, the period of the voltage fluctuation is calculated from data of a plurality of times at which the voltage measured by the parent device 202 has a substantially maximum value by using various fitting methods such as the least square method. Then, the data of the plurality of times is corrected such that the intervals of the plurality of times after correction coincide with the calculated period of the voltage fluctuation. At this time, data at a plurality of times may be corrected such that the sum of the correction amounts is minimized.

  Next, the determination unit 320 calculates the time difference between the time when the voltage measured by the parent device 202 indicates a substantially maximum value and the time when the voltage measured by the child device 204 closest to the time indicates a substantially maximum value. Do. When the above time difference is larger than a predetermined value, the phase difference between the voltage measured by the voltmeter 220 of the parent device 202 and the voltage measured by the voltmeter 220 of the slave device 204 is more than a predetermined value. Determined to be large. The predetermined value regarding the above time difference is determined, for example, based on the frequency of each output voltage.

  In the above embodiment, the case where the determination unit 320 calculates the time at which the voltage shows a substantially maximum value has been described. However, the determination unit 320 is not limited to the above embodiment. Determination unit 320 may use a time at which the voltage indicates a substantially minimum value. The determination unit 320 may use a time when the voltage becomes substantially zero. Here, the substantially maximum value includes not only the strictly maximum value in the above period but also a value in which an error from the strictly maximum value is a predetermined range. The same applies to the substantially minimum value and the substantially zero.

  In another embodiment, the determination unit 320 first analyzes the information of the voltage and measurement time measured by the parent device 202, and the information of the voltage and measurement time measured by the child device 204, and The information of the voltage measured by the device 202 and the information of the voltage measured by the slave device 204 are extracted. Next, the determination unit 320 expresses each voltage as a function of sine wave or cosine wave by data fitting. The determination unit 320 compares the terms related to the phase of the obtained function, and the phase difference between the voltage measured by the voltmeter 220 of the master unit 202 and the voltage measured by the voltmeter 220 of the slave unit 204 is predetermined. It is determined whether or not it is larger than the predetermined value.

  Furthermore, in the embodiment, the determination unit 320 includes a phase comparator (sometimes referred to as a phase frequency comparator) that outputs a signal corresponding to the phase difference between the two signals. For example, the determination unit 320 generates a signal indicating the voltage measured by the voltmeter 220 of the parent device 202 and a signal indicating the voltage measured by the voltmeter 220 of the slave device 204, and inputs the signal to the phase comparator. The phase comparator outputs a voltage according to the phase difference between the two input signals. If the output voltage of the phase comparator is larger than a predetermined value, the determination unit 320 determines that the phase difference between the voltage measured by the voltmeter 220 of the master unit 202 and the voltage measured by the voltmeter 220 of the slave unit 204 It is determined that the value is larger than a predetermined value.

  In yet another embodiment, at least one of the parent device 202 and the child device 204 measures the output voltage of the plurality of power supply outlets, the information indicating the temporal change of the output voltage, and the power supply that outputs the output voltage. The identification information of the exit is associated and stored. The determination unit 320 determines that the phase difference of the output voltage with respect to the other power supply outlet is greater than a predetermined value for each of the one or more power supply outlets at which the parent device 202 and the child device 204 measure the output voltage. It is determined whether or not it is large.

  For example, the user uses the parent device 202 and the child device 204 to acquire information on output voltages of three or more power supply outlets. In this case, the determination unit 320 determines that the phase difference between the output voltages of both of the combination of the plurality of power supply outlets at which the parent device 202 and the child device 204 measure the output voltage in the same period is It may be determined whether it is larger than a predetermined value.

  The determination unit 320 determines that the phase difference between the output voltages of both the main unit 202 and the slave unit 204 is larger than a predetermined value for all combinations of the plurality of power supply outlets whose output voltages are measured in the same period. It may be determined whether or not. The determination unit 320 may stop the determination process for another combination when a combination of power supply outlets having a phase difference larger than a predetermined value is found.

  For example, according to one embodiment, when the parent device 202 sequentially measures the output voltages of the “kitchen” and “study” outlets while the child device 204 measures the output voltage of the “living room” outlet. For example, the determination unit 320 determines the phase difference between the “living room” and the “kitchen” outlets, and the phase difference between the “living room” and the “study” outlet. According to another embodiment, the determination unit 320 first determines the phase difference between the “living room” and “kitchen” outlets. If the phase difference between the two is larger than a predetermined value, it is determined that the outlets of the “living room” and the “kitchen” are connected to distribution lines of different phases, and the determination process is ended. On the other hand, when the phase difference between the two is not larger than the predetermined value, the determination process is continued to determine the phase difference between the outlets in the living room and the study room.

  The display unit 330 outputs the determination result by the determination unit 320. The display unit 330 is not particularly limited, and may be various displays or light emitting elements.

  The display mode of the determination result is not particularly limited. According to one embodiment, the determination result is displayed on the display for each combination of outlets for which the determination process has been performed. For example, "living room-kitchen: OK", "living room-study: NG", etc. are displayed. Here, "OK" indicates that both are connected to distribution lines having different phases, or that the phase difference is larger than a predetermined value. “NG” indicates that both are not connected to distribution lines of different phases, or that the phase difference is not larger than a predetermined value. If the determination process is canceled halfway, it may be displayed that the determination result does not exist.

  In another embodiment, identification information of a specific outlet and identification information of an outlet determined to be connected to a distribution line different in phase from the distribution line to which the particular outlet is connected are displayed. It is also good. For example, when the identification information of the outlet connected to the distribution line different in phase from the distribution line to which the outlet in the living room is connected is displayed as "living room: kitchen, study, washroom" or the like.

  In yet another embodiment, a combination of outlets determined to be connected to distribution lines in different phases may be displayed. In yet another embodiment, it is determined that the identification information of the outlet determined to be connected to the first distribution line and the first distribution line are connected to a second distribution line that is out of phase. And the outlet identification information may be displayed. For example, "1st group: kitchen, living room, washroom", "2nd group: study, entrance" etc. are displayed.

  The respective units of the master unit 202 and the slave unit 204 may be realized by hardware, may be realized by software, or may be realized by a combination of hardware and software. For example, one or more computers function as part of the parent device 202 or the child device 204 by executing a program. Each unit of the master unit 202 or the slave unit 204 may be realized by activating software or a program that defines the operation of each unit of the master unit 202 or the slave unit 204 in an information processing apparatus having a general configuration.

  The above software or program may be stored in a computer readable medium such as a CD-ROM, a DVD-ROM, a memory, a hard disk or the like, or may be stored in a storage device connected to a network. The software or program may be installed on the computer of the parent device 202 or the child device 204 from a computer readable medium or a storage device connected to a network.

  The program that causes the computer to function as each unit of the master unit 202 or the slave unit 204 may include a module that defines the operation of each unit of the master unit 202 or the slave unit 204. These programs or modules operate on a processor, communication interface, etc., to function as each unit of the master unit 202 or the slave unit 204, or to execute an information processing method in each unit of the master unit 202 or the slave unit 204.

  The information processing described in these programs functions as specific means in which software and hardware resources of the master unit 202 or slave unit 204 cooperate with one another by being read into a computer. Then, by realizing calculation or processing of information according to the purpose of use of the computer in this embodiment by these specific means, it is possible to construct the parent device 202 or the slave device 204 according to the purpose of use.

  In the present embodiment, the case where the parent device 202 and the child device 204 have the storage unit 250 has been described. However, the phase determination system 200 is not limited to this embodiment. In another embodiment, the child device 204 may not have the storage unit 250. In this case, the communication control unit 260 is, for example, an interface or controller for wireless communication, and the slave unit 204 transmits the measurement result of the output voltage to the master unit 202 in real time.

  In the present embodiment, the case where the parent device 202 and the child device 204 have the input unit 240 has been described. However, the phase determination system 200 is not limited to this embodiment. In another embodiment, at least one of the parent device 202 and the child device 204 may not have the input unit 240.

  In the present embodiment, the case where the parent device 202 has the display unit 330 has been described. However, the phase determination system 200 is not limited to this embodiment. In another embodiment, parent device 202 may not have display unit 330. At this time, the parent device 202 may output the determination result by voice or may output data storing the determination result.

  In the present embodiment, the case has been described where the parent device 202 and the child device 204 have a plug having a terminal inserted into the power supply outlet. However, the parent device 202 and the child device 204 are not limited to the present embodiment. In another embodiment, when the power outlet has a plug, the parent device 202 and the child device 204 may be provided with a receptacle into which the terminal of the plug is inserted. In this case, the voltmeter 220 measures the output voltage from the power supply outlet connected to the receptacle.

  In the present embodiment, the case where the phase determination system 200 determines the phase difference of the output voltage in the plurality of outlets connected to any of the plurality of distribution lines connected to the same distribution board has been described. However, the determination target of the phase determination system 200 is not limited to this embodiment. In another embodiment, the determination target of the phase determination system 200 may be a plurality of outlets connected to any of a plurality of distribution lines connected to different distribution boards. In this case, there is a possibility that the phase difference between the two is not 180 °. Therefore, it is preferable to set the threshold value regarding the phase difference appropriately.

  FIG. 4 schematically illustrates an example of the data table 400. The data table 400 may be an example of information stored in the storage unit 250 of the parent device 202 or the child device 204. In the present embodiment, the data table 400 includes the installation location 402 of the outlet whose output voltage is measured by the voltmeter 220, the measurement time 404 when the output voltage of the outlet is measured, and the output voltage measured by the voltmeter 220. And the voltage value 406 of the The installation location 402 of the outlet may be an example of identification information of the power supply outlet.

  FIG. 5 schematically illustrates an example of the system configuration of the phase determination system 500. In the present embodiment, the phase determination system 500 is different from the in-home power distribution system 100 in that the phase determination system 500 includes two slaves 204 and a determination device 502. Otherwise, it may have the same configuration as the in-home power distribution system 100. The phase determination system 500 may include three or more slaves 204.

  In the present embodiment, the determination device 502 includes a communication control unit 260, a slave device information acquisition unit 310, a determination unit 320, and a display unit 330. One of the slave units 204 may be an example of a first voltage measurement device. The system including the other of the slave 204 and the determination device 502 may be an example of a second voltage measurement device.

  In the present embodiment, the child device information acquisition unit 310 collects information on the output voltage of each power supply outlet from each of the two child devices 204, and transmits the information to the determination unit 320. For example, the determination unit 320 determines whether the phase difference between both of the plurality of power supply outlets at which the voltmeters 220 of the two slaves 204 measure the voltage is larger than a predetermined value. Determine The determination device 502 may be a server or a personal computer, or may be a portable terminal. As a mobile terminal, a tablet computer, a smartphone, a mobile phone, a wearable terminal, and the like can be exemplified.

  The voltage conversion adapter 600 will be described with reference to FIGS. 6 and 7. FIG. 6 schematically shows an example of the appearance of the voltage conversion adapter 600. As shown in FIG. FIG. 7 schematically illustrates an example of a system configuration of the voltage conversion adapter 600. The voltage conversion adapter 600 may be an example of an AC voltage output device.

  In the present embodiment, the voltage conversion adapter 600 is connected to two power plugs (for example, the power plug 62 and the power plug 64) that output voltages of single-phase 100 volts different in phase, and single-phase 200 volts The details of the voltage conversion adapter 600 will be described by taking the case of outputting a voltage as an example. The voltage conversion adapter 600 is connected to, for example, a power plug for single phase 200 volts (for example, the power plug 66) and outputs a voltage of single phase 200 volts. By using voltage conversion adapter 600, the magnitude of the voltage output from the distribution line can be converted without using an electromagnetic induction type transformer.

  In the present embodiment, the voltage conversion adapter 600 includes a plug insertion port 612, a plug insertion port 614, a plug insertion port 616, a plug insertion port 620, an input unit 630, and a display unit 640. . The input unit 630 has, for example, a start button 632 and a setting button 634.

  In the present embodiment, the voltage conversion adapter 600 includes an input terminal 701, an input terminal 702, an input terminal 703, an input terminal 704, an input terminal 705, an input terminal 706, and an input terminal 707. The voltage conversion adapter 600 includes an output terminal 711, an output terminal 712, and an output terminal 713.

  In the present embodiment, one of two input terminals selected from the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704 is electrically connected to the output terminal 711. The other of the two input terminals is electrically connected to the output terminal 712. The remaining two input terminals of the four input terminals are electrically connected to the output terminal 713.

  In the present embodiment, the input terminal 705 is electrically connected to the output terminal 711. The input terminal 706 is electrically connected to the output terminal 712. The input terminal 707 is electrically connected to the output terminal 713. The voltage conversion adapter 600 may include a switch for determining whether or not to electrically connect the input terminal 705 and the input terminal 706, and the output terminal 711 and the output terminal 712.

  The voltage conversion adapter 600 includes a voltmeter 720, a control unit 730, and a four-input three-output switch 740. The control unit 730 includes a determination unit 732 and a signal generation unit 734. The 4-input 3-output switch 740 has a terminal 751, a terminal 752, a terminal 753, and a terminal 754 as input terminals. The 4-input 3-output switch 740 has a terminal 761, a terminal 762 and a terminal 763 as output terminals. The terminal 751, the terminal 752, the terminal 753, and the terminal 754 are electrically connected to the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704, respectively. Each of the terminal 761, the terminal 762, and the terminal 763 is electrically connected to each of the output terminal 711, the output terminal 712, and the output terminal 713. The voltmeter 720 may be an example of a voltage measurement unit. The 4-input 3-output switch 740 may be an example of a multi-input multi-output switch.

  The plug insertion port 612 holds the power plug 62. The power plug 62 has a pair of terminals for outputting an AC voltage. For example, the power plug 62 is electrically connected to the power outlet 122 via a cable and outputs a voltage of 100 volts. The power plug 62 may be an example of a first connector. The pair of terminals of the power plug 62 may be an example of a first terminal and a second terminal. The voltage output from the power plug 62 may be an example of a first alternating voltage.

  The plug insertion port 612 has an input terminal 701 and an input terminal 702. One of the input terminal 701 and the input terminal 702 is electrically connected to one of the pair of terminals of the power plug 62, and the other of the input terminal 701 and the input terminal 702 is electrically connected to the other of the pair of terminals of the power plug 62. Connected to The input terminal 701 and the input terminal 702 may be an example of a first input terminal and a second input terminal.

  The plug insertion port 614 holds the power plug 64. The power plug 64 has a pair of terminals for outputting an alternating voltage. The power plug 64 is electrically connected to, for example, the power outlet 132 via a cable, and outputs a voltage of 100 volts. The power plug 64 may be an example of a second connector. The pair of terminals of the power plug 64 may be an example of a third terminal and a fourth terminal. The voltage output from the power plug 64 may be an example of a second AC voltage.

  The plug insertion port 614 has an input terminal 703 and an input terminal 704. One of the input terminal 703 and the input terminal 704 is electrically connected to one of the pair of terminals of the power plug 64, and the other of the input terminal 703 and the input terminal 704 is electrically connected to the other of the pair of terminals of the power plug 64. Connected to The input terminal 703 and the input terminal 704 may be an example of a third input terminal and a fourth input terminal.

  The plug insertion port 616 holds the power plug 66. Power supply plug 66 has a pair of terminals for outputting an alternating voltage, and a ground terminal electrically connected to neutral wire 116 of distribution line 110. For example, the power plug 64 is electrically connected to the power outlet 142 via a cable and outputs a voltage of 200 volts. The power plug 66 may be an example of a third connector. The pair of terminals for outputting the AC voltage of the power plug 66 may be an example of the fifth terminal and the sixth terminal. The voltage output from the power plug 66 may be an example of a third AC voltage.

  The plug insertion port 616 has an input terminal 705, an input terminal 706 and an input terminal 707. One of the input terminal 705 and the input terminal 706 is electrically connected to one of a pair of terminals outputting the AC voltage of the power plug 66. The other of the input terminal 705 and the input terminal 706 is electrically connected to the other of the pair of terminals for outputting the AC voltage of the power plug 66. The input terminal 707 is electrically connected to the ground terminal of the power plug 66. The input terminal 705 and the input terminal 706 may be an example of a fifth input terminal and a sixth input terminal.

  The plug receptacle 620 has an output terminal 711 and an output terminal 712 for outputting an AC voltage. The plug receptacle 620 may be electrically connected to the neutral line 116 of the distribution line 110 and may have an output terminal 713 for outputting a reference potential. The output terminal 711 and the output terminal 712 may be an example of a first output terminal and a second output terminal. The output terminal 713 may be an example of a third output terminal.

  Input unit 630 receives an instruction from the user regarding the operation of voltage conversion adapter 600. For example, when the user presses the start button 632, measurement by the voltmeter 720 is started, or control by the control unit 730 is started. In addition, the user uses the setting button 634 to change setting values or conditions regarding the operation of the voltage conversion adapter 600. As the setting value or condition regarding the operation of the voltage conversion adapter 600, the allowable range of the output voltage, the type of information to be displayed on the display unit 640, and the like can be exemplified. As another example of the input unit 630, a keyboard, a pointing system, a touch panel, an audio input system, and the like can be illustrated.

  The display unit 640 displays various types of information. In one embodiment, the display unit 640 may display the determination result by the determination unit 732. In another embodiment, the display unit 640 displays the measurement result by the voltmeter 720. For example, when the voltmeter 720 measures the voltage between the output terminal 711 and the output terminal 712, the display unit 640 displays the value of the measured voltage. When the voltmeter 720 measures the voltage between each of the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704, the display unit 640 has two inputs among four input terminals. The value of the voltage between terminals may be displayed for all combinations in which the terminals are selected.

  The display unit 640 is a value of voltage between terminals for four combinations of the input terminal 701 and the input terminal 703, the input terminal 701 and the input terminal 704, the input terminal 702 and the input terminal 703, and the input terminal 702 and the input terminal 704. May be displayed. The display unit 640 may display the value of the voltage between terminals for three combinations of the input terminal 701 and the input terminal 703, the input terminal 701 and the input terminal 704, and the input terminal 702 and the input terminal 703.

  The voltmeter 720 measures the voltage between each terminal. For example, the voltmeter 720 may be (i) a voltage between the output terminal 711 and the output terminal 712 (sometimes referred to as the output voltage of the voltage conversion adapter 600) or (ii) of the input terminal 701 and the input terminal 703. Between the input terminal 701 and the input terminal 704, and the voltage between the input terminal 702 and the input terminal 703. The voltmeter 720 may measure both (i) and (ii) above. In the present embodiment, the case where the voltmeter 720 measures both (i) and (ii) above will be described. However, the voltmeter 720 is not limited to this embodiment.

  Control unit 730 controls each unit of voltage conversion adapter 600. For example, the control unit 730 controls the 4-input 3-output switch 740. The control unit 730 may control the 4-input 3-output switch 740 based on the measurement result of the voltmeter 720 such that the voltage between the output terminal 711 and the second output terminal satisfies a predetermined condition. .

  The predetermined conditions may include the condition that the maximum value of the output voltage of the voltage conversion adapter 600 is larger than the maximum value of the output voltage of the power plug 62 or the output voltage of the power plug 64. As another example of the predetermined condition, the condition that the maximum value of the output voltage of the voltage conversion adapter 600 is larger than the maximum value of the output voltage of the power plug 62 and the output voltage of the power plug 64 The condition that the maximum value of the output voltage of the voltage conversion adapter 600 is within a specific range, the condition that the waveform of the output voltage of the voltage conversion adapter 600 is a sine wave or a cosine wave, and the like can be illustrated.

  The determination unit 732 determines an input terminal connected to the output terminal 711 and an input terminal connected to the output terminal 712 among the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704, for example. . The determining unit 732 may further determine an input terminal connected to the output terminal 713.

  The signal generation unit 734 generates a control signal for controlling the four-input three-output switch 740 according to the determination of the determination unit 732. The signal generator 734 may transmit the generated control signal to the 4-input 3-output switch 740.

[First Example of Control by Control Unit 730]
In one embodiment, when the voltmeter 720 measures the output voltage of the voltage conversion adapter 600, the determination unit 732 monitors the output voltage measured by the voltmeter 720 while the output terminal 711 and the output terminal 712. Decide which input terminal to connect to each of. The determination unit 732 controls the 4-input 3-output switch 740 to switch the connection destinations of the output terminal 711 and the output terminal 712 in order, and the output voltage of the voltage conversion adapter 600 measured by the voltmeter 720 is predetermined. A pair of input terminals may be determined to satisfy the specified conditions.

  For example, when the start button 632 is pressed in a state where the power plug 62 is inserted into the plug insertion port 612 and the power plug 64 is inserted into the plug insertion port 614, the determination unit 732 first generates a signal generation unit For 734, the terminal 751 and the terminal 761 are connected, the terminal 754 and the terminal 762 are connected, and it is requested to generate a control signal for connecting the terminal 752 and the terminal 753 to the terminal 763. The signal generation unit 734 transmits the generated control signal to the 4-input 3-output switch 740. The 4-input 3-output switch 740 switches the connection between the four terminals on the input side and the three terminals on the output side according to the control signal.

  Next, the determination unit 732 receives the measurement result of the output voltage of the voltage conversion adapter 600 from the voltmeter 720. The determination unit 732 determines whether the measurement result of the output voltage of the voltage conversion adapter 600 satisfies the above-described predetermined condition. As the predetermined conditions, the condition that the maximum value of the output voltage is 195 volts or more, the condition that the maximum value of the output voltage is 195 volts or more and 205 volts or less, and the like can be exemplified.

  When the measurement result of the output voltage of the voltage conversion adapter 600 satisfies the above-described predetermined condition, the determination unit 732 is connected to the output terminal 711 and the output terminal 712 of the input terminal 701 and the input terminal 704. Decide. Thereafter, the determination unit 732 displays, for example, that the determination process is completed on the display unit 640, and ends the process.

  On the other hand, when the measurement result of the output voltage of the voltage conversion adapter 600 does not satisfy the above-described predetermined condition, the determination unit 732 connects the terminal 752 and the terminal 761 to the signal generation unit 734, and the terminal 754. And the terminal 762 are required to generate control signals for connecting the terminals 751 and 753 to the terminal 763. As in the previous case, the determination unit 732 determines whether the measurement result of the output voltage of the voltage conversion adapter 600 satisfies the above-described predetermined condition.

  The determination unit 732 repeats the above process until the measurement result of the output voltage of the voltage conversion adapter 600 satisfies the above-described predetermined condition. In this manner, the determination unit 732 repeats switching of the connection relationship in the 4-input 3-output switch 740, measurement of the output voltage, and determination of the measurement result, whereby the input terminal 701 and the input terminal 704 become the output terminal 711 and the output terminal. A pair of input terminals connected to 712 can be determined.

[Second Example of Control by Control Unit 730]
In another embodiment, the voltmeter 720 is at least a voltage between the input terminal 701 and the input terminal 703, a voltage between the input terminal 701 and the input terminal 704, and a voltage between the input terminal 702 and the input terminal 703. The determination unit 732 determines the measurement result of the output voltage of the voltage conversion adapter 600 based on the measurement result of the voltmeter 720 such that the measurement result of the voltage conversion adapter 600 satisfies the above-described predetermined condition. Decide. The signal generation unit 734 connects one of the pair of input terminals determined by the determination unit 732 to the output terminal 711 and generates a control signal for connecting the other of the pair of input terminals to the output terminal 712.

  For example, the determining unit 732 may set the voltage between the input terminal 701 and the input terminal 703, the voltage between the input terminal 701 and the input terminal 704, and the voltage between the input terminal 702 and the input terminal 703 as described above. It is determined whether the condition regarding the output voltage of the voltage conversion adapter 600 is satisfied. If a pair of input terminals satisfying the above conditions is found, the determination unit 732 determines to connect the pair of input terminals with the output terminal 711 and the output terminal 712. On the other hand, when a pair of input terminals satisfying the above conditions is not found, the determination unit 732 determines to connect the input terminal 702 and the input terminal 704, and the output terminal 711 and the output terminal 712.

  In another embodiment, the determination unit 732 is configured to determine the voltage between the input terminal 701 and the input terminal 703, the voltage between the input terminal 701 and the input terminal 704, the voltage between the input terminal 702 and the input terminal 703, and the input. Among the voltages between the terminal 702 and the input terminal 703, a combination indicating the largest voltage value is determined. Thus, it is possible to determine a pair of input terminals at which the voltage between the terminals is maximum. The determination unit 732 determines to connect the pair of input terminals at which the inter-terminal voltage becomes maximum, the output terminal 711 and the output terminal 712.

  The 4-input 3-output switch 740 switches the connection between the input terminal 701, the input terminal 702, the input terminal 703 and the input terminal 704, and the output terminal 711 and the output terminal 712. For example, the 4-input 3-output switch 740 electrically connects one of two terminals selected from among the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704 to the output terminal 711. In addition, the other of the two selected terminals is electrically connected to the output terminal 712. The 4-input 3-output switch 740 may electrically connect the two non-selected input terminals to the output terminal 713. The 4-input 3-output switch 740 may be an analog switch or a semiconductor switch.

  In the present embodiment, a plug receptacle (sometimes referred to as a receptacle) is disposed in the voltage conversion adapter 600, and a power plug electrically connected to the power outlet is inserted in the plug receptacle. The case was explained. However, the voltage conversion adapter 600 is not limited to this embodiment. In another embodiment, a power plug may be disposed in the voltage conversion adapter 600, and the power plug may be inserted into a plug receptacle electrically connected to the power outlet via a cable.

  In the present embodiment, the case where the voltage conversion adapter 600 includes the input unit 630 and the display unit 640 has been described. However, the voltage conversion adapter 600 is not limited to this embodiment. In another embodiment, the voltage conversion adapter 600 may not include at least one of the input unit 630 and the display unit 640. If the voltage conversion adapter 600 does not include the input unit 630, the control unit 730 may detect that the power plug is inserted into the plug insertion port 612 and the plug insertion port 614, and start control. The control unit 730 may detect that the power plug is inserted into the plug insertion port 612 and the plug insertion port 614 based on the information acquired from the voltmeter 720.

  In the present embodiment, the case where the four-input three-output switch 740 switches the connection based on the control signal of the control unit 730 has been described. However, the voltage conversion adapter 600 is not limited to this embodiment. In another embodiment, the voltage conversion adapter 600 may include a 4 input 2 output switch instead of the 4 input 3 output switch 740. For example, the 4-input 2-output switch electrically connects one of two terminals selected from among the input terminal 701, the input terminal 702, the input terminal 703, and the input terminal 704, to the output terminal 711. In addition, the other of the two selected terminals is electrically connected to the output terminal 712. The output terminal 713 may not be electrically connected to the two unselected input terminals.

  In yet another embodiment, the four-input three-output switch 740 may be a manual switch. In this case, the user may switch the connection relationship of the 4-input 3-output switch 740 with reference to the information displayed on the display unit 640. The voltage conversion adapter 600 may not include the input unit 630, the display unit 640, the voltmeter 720, and the control unit 730. Even in this case, the user can find the correct connection by switching the switch of the 4-input 3-output switch 740 multiple times. However, by providing the voltage conversion adapter 600 with the voltmeter 720 and the display unit 640 that displays the measurement result of the voltmeter 720, the user can easily find the correct connection.

  FIG. 8 schematically shows an example of a system configuration of the 4-input 3-output switch 740. As shown in FIG. In the present embodiment, the 4-input 3-output switch 740 is configured of two 2-input 2-output switches. In the present embodiment, the four-input three-output switch 740 includes a four-way switch 842 and a four-way switch 844. The four-way switch 842 electrically connects the terminal 761 to one of the terminal 751 and the terminal 752, and electrically connects the terminal 763 to the other of the terminal 751 and the terminal 752. The four-way switch 844 electrically connects the terminal 762 to one of the terminal 753 and the terminal 754, and electrically connects the terminal 763 to the other of the terminal 753 and the terminal 754.

  FIG. 9 schematically shows an example of a system configuration of the 4-input 2-output switch 940. The 4-input 2-output switch 940 may be an example of a multi-input multi-output switch. 6 and 7, the case where the voltage conversion adapter 600 includes the output terminal 713 has been described. However, when the voltage conversion adapter 600 includes the four-input two-output switch 940, the voltage conversion adapter 600 may not include the output terminal 713.

  In the present embodiment, the 4-input 2-output switch 940 is configured of two 2-input 1-output switches. In the present embodiment, the four-input two-output switch 940 includes a three-way switch 942 and a three-way switch 944. The three-way switch 942 electrically connects the terminal 761 to one of the terminal 751 and the terminal 752. The three-way switch 944 electrically connects the terminal 762 to one of the terminal 753 and the terminal 754.

  FIG. 10 schematically shows an example of a system configuration of the voltage conversion adapter 1000. As shown in FIG. The voltage conversion adapter 1000 is different from the voltage conversion adapter 600 in that the control unit 1030 does not control the 4-input 3-output switch 740 without the 4-input 3-output switch 740.

  The voltage conversion adapter 1000 has a plug socket 1012 having an input terminal 701 and an input terminal 702, in which the power plug is inserted into the plug socket 1012, and a pair of terminals of the power plug and the plug socket 1012 are connected. It differs from the voltage conversion adapter 600 in that it is configured to allow relative position change. The plug receptacle 1012 may slidably or rotatably hold the power plug.

  In the voltage conversion adapter 1000, the plug socket 1014 having the input terminal 703 and the input terminal 704 is connected to the pair of terminals of the power plug and the plug socket 1014 in a state where the power plug is inserted into the plug socket 1014. It differs from the voltage conversion adapter 600 in that it is configured to allow relative position change. The plug receptacle 1012 may slidably or rotatably hold the power plug. The configuration other than the above difference may be the same as that of the voltage conversion adapter 600.

  In the present embodiment, the input terminal 701 is electrically connected to the output terminal 711. The input terminal 702 is electrically connected to the output terminal 713. The input terminal 703 is electrically connected to the output terminal 713. The input terminal 704 is electrically connected to the output terminal 712. In the present embodiment, the voltmeter 720 measures the voltage between the input terminal 701 or the output terminal 711 and the input terminal 704 or the output terminal 712.

  For example, if the plug socket 1012 holds the power plug 62 such that a specific area of the power plug 62 is disposed at the first position of the plug socket 1012, a pair of terminals of the power plug 62 And the input terminal 701 are connected, and the other of the pair of terminals of the power plug 62 and the input terminal 702 are connected. On the other hand, when the plug socket 1012 holds the power plug 62 such that a specific area of the power plug 62 is disposed at the second position of the plug socket 1012, a pair of terminals of the power plug 62 And the input terminal 701 are connected, and one of the pair of terminals of the power plug 62 and the input terminal 702 are connected. The second position is a position different from the first position.

  Similarly, if the plug socket 1014 is holding the power plug 64 such that a particular area of the power plug 64 is disposed at the first position of the plug socket 1014, a pair of power plug 64 One of the terminals and the input terminal 704 are connected, and the other of the pair of terminals of the power plug 64 and the input terminal 703 are connected. On the other hand, when the plug socket 1014 holds the power plug 64 such that a specific area of the power plug 64 is disposed at the second position of the plug socket 1014, the pair of terminals of the power plug 64 And the input terminal 704 are connected, and one of the pair of terminals of the power plug 62 and the input terminal 703 are connected. The second position is a position different from the first position.

  FIG. 11 schematically shows an example of the appearance of the plug insertion port 1012. The plug insertion port 1014 may have the same structure as the plug insertion port 1012. In the present embodiment, the plug insertion port 1012 has a cover 1130. The cover 1130 is formed with a toroidal opening 1132. The plug insertion port 1012 has a plug holding portion 1101, a plug holding portion 1102, a plug holding portion 1121 and a plug holding portion 1122 inside the opening 1132.

  The plug holder 1101 and the plug holder 1121 hold the terminal 1162 of the power plug 62. The plug holding portion 1101 and the plug holding portion 1121 may constitute a part of a blade receiving spring. At least one of the plug holding portion 1101 and the plug holding portion 1121 may be made of a conductive material and function as the input terminal 701, or may hold a conductive member functioning as the input terminal 701.

  The plug holder 1102 and the plug holder 1122 hold the terminal 1164 of the power plug 62. The plug holding portion 1102 and the plug holding portion 1122 may constitute a part of a blade receiving spring. At least one of the plug holding portion 1102 and the plug holding portion 1122 may be made of a conductive material and function as the input terminal 702, or may hold a conductive member functioning as the input terminal 702.

  Thus, the power plug 62 can be rotated in a state in which the terminal 1162 and the terminal 1164 of the power plug 62 are inserted into the opening 1132. For example, when the mark 1186 attached to the power plug 62 is disposed at a position facing the mark 1182 attached to the cover 1130, the terminal 1162 of the power plug 62 corresponds to a member corresponding to the input terminal 701 (for example, It is connected to at least one of the plug holder 1101 and the plug holder 1121).

  On the other hand, when the mark 1186 attached to the power plug 62 is disposed at a position facing the mark 1184 attached to the cover 1130, the terminal 1162 of the power plug 62 is a member corresponding to the input terminal 702 (for example, At least one of the plug holder 1102 and the plug holder 1122). The mark 1186 may be an example of a specific area of the power plug 62. The mark 1182 may be an example of a first position of the plug insertion port 1012. The mark 1184 may be an example of a second position of the plug socket 1012.

  FIG. 12 schematically shows an example of the appearance of the plug insertion port 1212. The plug insertion port 1014 may have the same structure as the plug insertion port 1212. In the present embodiment, the plug insertion opening 1212 is a plug insertion opening in that the connection relationship between the terminals 1162 and the terminals 1164 and the input terminal 701 and the input terminal 702 is switched by rotating the power supply plug 62 by 90 degrees. It is different from 1012. Otherwise, the configuration may be similar to that of the plug insertion port 1012.

  In the present embodiment, the cover 1130 is formed with an opening 1232 and an opening 1234 on a 90 degree arc. The plug insertion port 1212 has a plug holding portion 1101, a plug holding portion 1121, a plug holding portion 1202 and a plug holding portion 1222 inside the opening 1232. The plug insertion port 1212 has a plug holding portion 1102, a plug holding portion 1122, a plug holding portion 1201, and a plug holding portion 1221 inside the opening 1234.

  In the present embodiment, the plug holding unit 1201 and the plug holding unit 1221 may have the same configuration as the plug holding unit 1101 and the plug holding unit 1121, and function as the input terminal 701. The plug holding unit 1202 and the plug holding unit 1222 may have the same configuration as the plug holding unit 1102 and the plug holding unit 1122, and function as the input terminal 702.

  FIG. 13 schematically shows an example of the appearance of the plug insertion port 1312. The plug insertion port 1014 may have the same structure as the plug insertion port 1312. In the present embodiment, the plug insertion port 1312 slides the power supply plug 62 to switch the connection between the terminals 1162 and the terminals 1164 and the input terminal 701 and the input terminal 702. This is different from the plug socket 1212. Otherwise, the configuration may be the same as that of the plug insertion port 1012 or the plug insertion port 1212.

  In the present embodiment, the cover 1130 is formed with a rectangular opening 1332 and an opening 1334. The plug insertion port 1312 has a plug holding portion 1101, a plug holding portion 1121, a plug holding portion 1302 and a plug holding portion 1322 inside the opening 1332. The plug insertion port 1312 has a plug holding unit 1102, a plug holding unit 1122, a plug holding unit 1301, and a plug holding unit 1321 inside the opening 1334.

  The plug holding unit 1301 and the plug holding unit 1321 may have the same configuration as the plug holding unit 1101 or the plug holding unit 1121, and function as the input terminal 701. The plug holding unit 1302 and the plug holding unit 1322 may have the same configuration as the plug holding unit 1102 or the plug holding unit 1122, and function as the input terminal 702.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It is apparent to those skilled in the art that various changes or modifications can be added to the above embodiment. Further, the matters described in the specific embodiment can be applied to the other embodiments as long as no technical contradiction arises. It is also apparent from the scope of the claims that the embodiments added with such alterations or improvements can be included in the technical scope of the present invention.

  The execution order of each process such as operations, procedures, steps, and steps in the apparatuses, systems, programs, and methods shown in the claims, the specification, and the drawings is particularly “before”, “preceding” It is to be noted that “it is not explicitly stated as“ etc. ”and can be realized in any order as long as the output of the previous process is not used in the later process. With regard to the flow of operations in the claims, the specification and the drawings, even if it is described using “first,” “next,” etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

Further, the following matters are disclosed in the present specification.
[Item 1]
A first connection having a pair of terminals connected to the power outlet,
A first voltage measurement unit that measures a voltage output from a power supply outlet connected to the first connection unit at least for a predetermined period;
A first communication control unit that controls communication with an external device;
A first voltage measuring device having
A second connection having a pair of terminals connected to the power outlet,
A second voltage measurement unit that measures the voltage output from the power supply outlet connected to the second connection unit at least for a predetermined period;
A second communication control unit that controls communication with an external device;
An acquisition unit configured to acquire a voltage measured by the first voltage measurement unit via the first communication control unit and the second communication control unit;
A determination unit that determines whether the phase difference between the voltage measured by the first voltage measurement unit and the voltage measured by the second voltage measurement unit is larger than a predetermined value;
A second voltage measuring device having
A judgment system equipped with
[Item 2]
The first voltage measurement device further includes a first storage unit that stores the value of the voltage measured by the first voltage measurement unit in association with the time when the voltage is measured,
The second voltage measurement apparatus further includes a second storage unit that stores the value of the voltage measured by the second voltage measurement unit in association with the time when the voltage is measured,
The acquisition unit acquires information associated with the value of the voltage and the time stored in the first storage unit,
The determination unit measures the first voltage measurement unit based on the information acquired by the acquisition unit and the information stored in the second storage unit and the value of the voltage and the information associated with the time. It is determined whether or not the phase difference between the measured voltage and the voltage measured by the second voltage measurement unit is larger than a predetermined value.
The judgment system according to item 1.
[Item 3]
The first voltage measurement device further includes an input unit for inputting identification information of a power supply outlet to which the first connection unit is connected,
The first storage unit is a power supply outlet to which the first connection unit was connected when the value of the voltage measured by the first voltage measurement unit, the time when the voltage was measured, and the voltage were measured. Store in association with the identification information of
The acquisition unit acquires information associated with the value of the voltage, the time, and the identification information, which is stored in the first storage unit,
The determination unit determines, for each of the one or more power supply outlets identified by the one or more pieces of identification information included in the information acquired by the acquisition unit, the phase difference of the output voltage with the other power outlet. Determine whether it is greater than a predetermined value;
The judgment system according to item 2.
[Item 4]
The second voltage measurement device further includes an input unit for inputting identification information of the power supply outlet to which the second connection unit is connected,
The second storage unit is a power supply outlet to which the second connection unit is connected when the value of the voltage measured by the second voltage measurement unit, the time when the voltage is measured, and the voltage is measured. Store in association with the identification information of
The determination unit is a voltage measured by the first voltage measurement unit for each of the one or more power supply outlets identified by the one or more pieces of identification information included in the information stored in the second storage unit; Determining whether the phase difference of the voltages measured by the second voltage measurement unit is larger than a predetermined value;
The judgment system according to item 2.
[Item 5]
The second voltage measurement device further includes an output unit that outputs the determination result by the determination unit.
The determination system according to any one of items 1 to 4.
[Item 6]
The first voltage measurement device further includes a first time measurement unit that measures time,
The second voltage measurement device further includes a second time measurement unit that measures time,
The first time measuring unit and the second time measuring unit execute time setting processing before the first voltage measuring unit and the second voltage measuring unit start measurement.
The determination system according to any one of items 1 to 5.
[Item 7]
A power connection having a pair of terminals connected to the power outlet;
A voltage measurement unit that measures a voltage output from a power supply outlet connected to the power supply connection unit;
A storage unit that stores the value of the voltage measured by the voltage measurement unit in association with the time when the voltage is measured;
A housing that accommodates the power supply connection unit, the voltage measurement unit, and the storage unit;
Equipped with
Voltage measuring device.

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Claims (12)

A first input terminal electrically connected to any one of a first terminal for outputting a first alternating voltage and a second terminal;
A second input terminal electrically connected to the other of the first terminal and the second terminal;
A third input terminal electrically connected to any one of a third terminal for outputting a second AC voltage and a fourth terminal;
A fourth input terminal electrically connected to the other of the third terminal and the fourth terminal;
A first output terminal and a second output terminal for outputting an alternating voltage;
(I) a voltage between the first output terminal and the second output terminal, and (ii) a voltage between the first input terminal and the third input terminal, the first input terminal and the fourth input A voltage measurement unit that measures at least one of a voltage between the terminals and a voltage between the second input terminal and the third input terminal;
A multi-input multi-output switch that switches connection between the first input terminal, the second input terminal, the third input terminal, and the fourth input terminal, and the first output terminal and the second output terminal;
A control unit configured to control the multi-input multi-output switch such that a voltage between the first output terminal and the second output terminal satisfies a predetermined condition based on a measurement result of the voltage measurement unit; ,
An AC voltage output device comprising: The predetermined condition includes the condition that the maximum value of the voltage between the first output terminal and the second output terminal is larger than the maximum value of the first AC voltage or the second AC voltage.
The alternating voltage output device according to claim 1. The voltage measurement unit measures a voltage between the first output terminal and the second output terminal,
The control unit
Between the first output terminal and the second output terminal measured by the voltage measuring unit while controlling the connection destination of the first output terminal and the second output terminal by controlling the multi-input multi-output switch And a determination unit that determines a pair of input terminals such that the voltage of the circuit satisfies the predetermined condition.
The alternating voltage output device according to claim 1 or 2. The voltage measurement unit includes a voltage between the first input terminal and the third input terminal, a voltage between the first input terminal and the fourth input terminal, and a voltage between the second input terminal and the third input terminal. Voltage between the second input terminal and the fourth input terminal, and
The control unit
A determination unit that determines a pair of input terminals at which the inter-terminal voltage is maximum based on the measurement result of the voltage measurement unit;
One of the pair of input terminals determined by the determining unit is connected to the first output terminal, and a control signal for connecting the other of the pair of input terminals determined by the determining unit to the second output terminal is generated. A signal generation unit,
Have
The alternating voltage output device according to claim 1 or 2. It further comprises a third output terminal,
The multi-input multi-output switch includes the first input terminal, the second input terminal, the third input terminal, and the fourth input terminal, the first output terminal, the second output terminal, and the third output terminal. It is a 4-input 3-output switch that switches the connection relationship with the
The control unit includes two input terminals different from the pair of input terminals among the first input terminal, the second input terminal, the third input terminal, and the fourth input terminal, and the third output terminal. Control the multi-input multi-output switch such that
The alternating voltage output apparatus of Claim 3 or Claim 4. The multi-input multi-output switch is
A first switch electrically connecting the first output terminal to any one of the first input terminal and the second input terminal;
A second switch electrically connecting the second output terminal to any one of the third input terminal and the fourth input terminal;
including,
The alternating voltage output device according to any one of claims 1 to 4. It further comprises a third output terminal,
The first switch electrically connects the third output terminal to the other of the first input terminal and the second input terminal,
The second switch electrically connects the third output terminal to the other of the third input terminal and the fourth input terminal.
The AC voltage output device according to claim 6. A first input terminal electrically connected to any one of the first terminal and the second terminal of the first connector for outputting the first AC voltage;
A second input terminal electrically connected to the other of the first terminal and the second terminal;
A third input terminal electrically connected to any one of the third terminal and the fourth terminal of the second connector for outputting the second AC voltage;
A fourth input terminal electrically connected to the other of the third terminal and the fourth terminal;
A first output terminal electrically connected to the first input terminal;
A second output terminal electrically connected to the fourth input terminal;
A first holding unit for holding the first connector;
A second holding unit that holds the second connector;
Equipped with
When the first holding unit holds the first connector such that a specific region of the first connection unit is disposed at a first position of the first holding unit, the first terminal and the first terminal Connected to the first input terminal,
When the first holding unit holds the first connector such that the specific region of the first connector is disposed at the second position of the first holding unit, the second terminal The first input terminal is connected,
When the second holding unit holds the second connector such that a specific region of the second connection unit is disposed at a first position of the second holding unit, the third terminal and the third terminal The fourth input terminal is connected,
When the second holding unit holds the second connector such that the specific region of the second connector is disposed at the second position of the second holding unit, the fourth terminal The fourth input terminal is connected,
AC voltage output device. (I) a voltage between the first output terminal and the second output terminal, and (ii) a voltage between the first input terminal and the third input terminal, the first input terminal and the fourth input A voltage measurement unit configured to measure at least one of a voltage between terminals, a voltage between the second input terminal and the third input terminal, and a voltage between the second input terminal and the fourth input terminal; Furthermore,
The AC voltage output device according to claim 8. The display device further includes a display unit that displays a measurement result by the voltage measurement unit.
The AC voltage output device according to claim 9. And a third output terminal electrically connected to the second input terminal and the third input terminal,
The first holding unit is
When the first connector is held such that the specific region of the first connector is disposed at the first position of the first holder, the second terminal and the second input terminal Connect with
When the first connector is held such that the specific region of the first connector is disposed at the second position of the first holder, the first terminal and the second input terminal Configured to connect with
The second holding unit is
When the second connector is held such that the specific region of the second connector is disposed at the first position of the second holder, the fourth terminal and the third input terminal Connect with
When the second connector is held such that the specific region of the second connector is disposed at the second position of the second holder, the third terminal and the third input terminal Configured to connect with
The alternating voltage output device according to any one of claims 8 to 10. A fifth input terminal electrically connected to any one of the fifth terminal and the sixth terminal of the third connector for outputting the third AC voltage;
A sixth input terminal electrically connected to the other of the fifth terminal and the sixth terminal;
And further
The fifth input terminal is electrically connected to the first output terminal,
The sixth input terminal is electrically connected to the second output terminal.
The alternating voltage output device according to any one of claims 1 to 11.