JP5455494B2 - Power supply device and control method - Google Patents

Description

  The present invention relates to a power supply device and a control method thereof, and more particularly, to a power supply device for a device having a plurality of operation units and a control method thereof.

  An automated teller machine (hereinafter referred to as “ATM”) allows customers (users) to operate their own cash deposit and withdrawal process even if the customer (user) does not perform procedures at a bank or other financial institution. It is an apparatus that enables transaction processing such as transfer processing. The ATM has a plurality of operation units that perform predetermined operations such as a banknote depositing / withdrawing mechanism and a bankbook mechanism, for example, and the power supply device for ATM supplies power to each operation unit (see, for example, Patent Documents 1 to 3). .

JP 2001-155220 A JP 2002-117439 A Japanese Laid-Open Patent Publication No. 2006-204034

  During operation, ATM transitions between a plurality of states such as a transaction execution state and a standby state. In each state of ATM, the number and kind of operation units which operate may differ. Therefore, in ATM, the power load varies depending on the state. Conventionally, various improvements have been made to improve the efficiency of power supply devices for ATM, but there is room for further efficiency improvement.

  In addition, the said subject was a subject common to the power supply device not only for the power supply device for ATM but for the apparatus which has a some operation | movement unit.

  The present invention has been made to solve the above-described problems, and an object thereof is to improve the efficiency of a power supply device for a device having a plurality of operation units.

In order to solve at least a part of the above problems, the present invention can be realized as the following forms or application examples. For example, the present invention is a power supply device for a device having a plurality of operation units, a plurality of connectors for connection to the plurality of operation units, and the plurality of operation units via the plurality of connectors. A plurality of power supply units that supply power to each other, and outputs of the plurality of power supply units and inputs of the plurality of connectors are connected in parallel, and the connection between the outputs of the plurality of power supply units can be disconnected. A connection wiring portion having at least one first switch and at least one second switch capable of disconnecting connection between the connector and all of the plurality of power supply units with respect to at least one of the connectors; A power detection unit for detecting the output power of each of the power supply units, and the connection wiring unit according to the open / close state of the first switch A voltage setting unit that sets the output voltage of each of the plurality of power supply units independently for each of the power supply units to which an output is connected; and a device having the plurality of operation units; An information receiving unit for receiving a plurality of power modes for specifying a driving / stopping state, an opening / closing state of the first switch, and an opening / closing state of the second switch, and the plurality of the plurality of power modes based on the detection result of the output power Calculating the total power amount of the power supply unit, controlling the driving / stopping of each of the plurality of power supply units based on the calculated total power amount, the first switch based on the detection result of the output power, and the control of the opening and closing of the second switch, the power mode selected based on a predetermined condition including at least time of said received plurality of power modes Based and a power control unit that performs control of the respective driving / stopping and opening and closing of said first switch and closing of said second switch of said plurality of power supply units can be implemented as power supply. In addition, the present invention can be realized as the following forms or application examples.

Application Example 1 A power supply device for a device having a plurality of operation units,
A plurality of connectors for connection with the plurality of operating units;
A plurality of power supply units for supplying power to the plurality of operation units via the plurality of connectors;
A connection wiring portion for connecting in parallel each output of the plurality of power supply units and each input of the plurality of connectors;
A power detector that detects output power of each of the plurality of power supply units;
A power control unit that calculates a total power amount of the plurality of power supply units based on the detection result of the output power, and controls driving / stopping of each of the plurality of power supply units based on the calculated total power amount; A power supply apparatus comprising:

  In this power supply device, each output of the plurality of power supply units and each input of the plurality of connectors are connected in parallel, and the driving / stopping of each of the plurality of power supply units is controlled based on the total amount of power. For a device having a plurality of operation units capable of improving the load factor of a power source and supplying power from a driven power supply unit to a plurality of operation units in parallel via a plurality of connectors The efficiency of the power supply device can be improved.

[Application Example 2] The power supply device according to Application Example 1,
The power supply control unit stops the at least one power supply unit and drives the at least one power supply unit when the total amount of power is below a predetermined first threshold, and drives the power supply A power supply device that causes a unit to supply power to the plurality of operation units.

  In this power supply device, when the total amount of power falls below a predetermined first threshold, at least one power supply unit is stopped and at least one power supply unit is driven, and the driven power supply unit has a plurality of operation units. Therefore, the load factor of the power supply can be improved, and the efficiency of the power supply device can be improved.

[Application Example 3] The power supply device according to Application Example 1 or Application Example 2,
The power control unit drives at least one power supply unit when the total amount of power exceeds a predetermined second threshold, and supplies power to the plurality of operation units to the driven power supply unit. Make the power supply.

  In this power supply device, when the total amount of power exceeds a predetermined second threshold value, all the power supply units are driven, and the driven power supply unit supplies power to the plurality of operation units. It is possible to supply power to the operation unit without any shortage.

[Application Example 4] The power supply device according to any one of Application Examples 1 to 3,
The connection wiring portion includes at least one first switch capable of disconnecting connections between outputs of the plurality of power supply units,
The power supply controller controls the opening and closing of the first switch based on the detection result of the output power.

  In this power supply device, the connection between the outputs of the plurality of power supply units can be disconnected according to the detection result of the output power, and the power supply path from the plurality of power supply units to the plurality of operation units can be set flexibly. It is possible to improve the efficiency of the power supply device by improving the load factor of the power supply.

Application Example 5 The power supply device according to Application Example 4, further comprising:
A power supply apparatus comprising: a voltage setting unit that sets an output voltage of each of the plurality of power supply units.

  In this power supply device, output voltages of the plurality of power supply units can be set, and power can be supplied at voltages required by the plurality of operation units.

[Application Example 6] The power supply device according to Application Example 5,
The voltage setting unit sets an output voltage of each of the plurality of power supply units independently for each of the power supply units to which an output is connected by the connection wiring unit, according to an open / close state of the first switch. , Power supply.

  In this power supply device, the output voltage can be set independently for each power supply unit to which the output is connected by the connection wiring portion in accordance with the open / close state of the first switch, and from a plurality of power supply units to a plurality of operation units. The power supply path and the output voltage can be set flexibly.

[Application Example 7] The power supply device according to Application Example 6,
The connection wiring portion includes at least one second switch capable of disconnecting connection between the connector and all of the plurality of power supply units with respect to at least one connector.
The power supply controller controls the opening and closing of the second switch based on the detection result of the output power.

  In this power supply device, the connection between the connector and all of the plurality of power supply units can be disconnected according to the detection result of the output power, and the power consumption of the device having the plurality of operation units can be further reduced.

[Application Example 8] The power supply device according to Application Example 7,
Information reception for receiving information specifying the drive / stop state of each of the plurality of power supply units, the open / close state of the first switch, and the open / close state of the second switch from the device having the plurality of operation units. Part
The power supply control unit controls driving / stopping of each of the plurality of power supply units, opening / closing of the first switch, and opening / closing of the second switch based on the received information.

  In this power supply device, based on the received information, it is possible to control driving / stopping of each of the plurality of power supply units, opening / closing of the first switch, and opening / closing of the second switch.

[Application Example 9] The power supply device according to Application Example 7 or Application Example 8,
Information specifying the drive / stop state of each of the plurality of power supply units, the open / close state of the first switch, and the open / close state of the second switch is transmitted to the device having the plurality of operation units. A power supply device comprising an information transmission unit.

  In this power supply device, information specifying the drive / stop state of each of the plurality of power supply units, the open / close state of the first switch, and the open / close state of the second switch is transmitted to the device having the plurality of operation units. In an apparatus having a plurality of operation units, an operation corresponding to the power supplied from the power supply apparatus can be performed.

[Application Example 10] The power supply device according to any one of Application Examples 1 to 9, further comprising:
A power supply apparatus comprising a current balancing unit that balances output currents of the plurality of power supply units.

  In this power supply device, the output currents of the plurality of power supply units can be balanced, so that the power supply from the power supply device can be maximized and the operation is performed in a region with a high load factor. And the efficiency of the power supply device can be improved satisfactorily.

  The present invention can be realized in various modes, for example, in a power supply device, a power supply system, a transaction processing device having a power supply device or a power supply system, a control method for these devices or systems, and the like. Can be realized.

It is explanatory drawing which shows roughly the structure of the automatic teller machine 10 in 1st Example of this invention. It is explanatory drawing which shows the internal structure of the automatic teller machine 10 roughly. It is explanatory drawing which shows schematically the structure of the power supply system 100 in 1st Example. It is explanatory drawing which shows the relationship between the load factor of a power supply, and conversion efficiency exemplarily. It is explanatory drawing which shows schematically the structure of the power supply system 100a in 2nd Example. It is explanatory drawing which shows schematically the structure of the power supply system 100b in 3rd Example. It is explanatory drawing which shows roughly the structure of the connection circuit 170c in 4th Example. It is explanatory drawing which shows roughly the structure of the connection circuit 170d in the modification of 4th Example. It is explanatory drawing which shows the flow of the ATM mode control processing in the power supply system of 4th Example. It is explanatory drawing which shows the flow of the ATM mode control processing in the power supply system of 4th Example. 4 is an explanatory diagram illustrating an example of a power mode of the power system 100. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows an example of the screen display in an ATM mode control process. It is explanatory drawing which shows the flow of the ATM mode control processing in the power supply system of 5th Example. It is explanatory drawing which shows the flow of the ATM mode control processing in the power supply system of 5th Example.

Next, embodiments of the present invention will be described in the following order based on examples.
A. First embodiment:
B. Second embodiment:
C. Third embodiment:
D. Fourth embodiment:
E. Example 5:
F. Variations:

A. First embodiment:
FIG. 1 is an explanatory diagram schematically showing the configuration of the automatic teller machine 10 in the first embodiment of the present invention. FIG. 2 is an explanatory diagram schematically showing the internal configuration of the automatic teller machine 10. An automatic cash transaction apparatus (hereinafter also referred to as “ATM”) 10 according to the present embodiment is installed in, for example, a financial institution, a retail store, a public facility, etc. It is a device that performs processing. ATM10 is also called an automatic teller machine.

  As shown in FIGS. 1 and 2, the ATM 10 handles a control unit 200 that controls the entire ATM 10, a storage unit 290 that stores various types of information, an operation unit 220 as an interface for a customer, and a customer's card. A card / detail slip mechanism 250 that prints transaction details on a slip, a passbook mechanism 260 that handles a customer's passbook, a bill deposit / withdrawal mechanism 230 that performs bill deposit / withdrawal processing, and a coin deposit / withdrawal processing A line connection unit 210 for connection with a coin deposit / withdrawal mechanism 240, a host computer (not shown), a customer detection unit 270 as a sensor for detecting a customer approaching the ATM 10, and a customer as a camera for imaging the customer It has an imaging unit 280 and a power supply system 100 as a power supply device for ATM 10.

  The control unit 200 has a CPU and a memory for storing programs and data, and performs various controls in the ATM 10 when the CPU reads and executes the programs stored in the memory. The operation unit 220 includes, for example, a touch panel having an input function and a display function. The operation unit 220 displays various information on the screen and detects a customer's screen touch operation, thereby inducing a customer's transaction operation. The customer accepts selection of items displayed on the screen, input of a personal identification number, and the like. The card / detail slip mechanism 250 accepts / discharges a customer's magnetic card and IC card in which customer information necessary for transaction processing is recorded, and reads / writes for a magnetic stripe or IC chip included in the card The image reading operation of the embossed part of the card is performed. The passbook mechanism 260 performs a customer passbook acceptance / discharge operation, a read / write operation for a magnetic stripe, a printing operation on the passbook, and the like. The control unit 200, the operation unit 220, the bill deposit / withdrawal mechanism 230, the coin deposit / withdrawal mechanism 240, the card / detail slip mechanism 250, the passbook mechanism 260, the customer detection unit 270, etc. included in the ATM 10 each have a predetermined operation. It is the component which performs. In this specification, these components are referred to as operation units. That is, the ATM 10 has a plurality of operation units.

  The power supply system 100 supplies direct-current power (DC power) to each of the plurality of operation units. In this embodiment, as shown in FIG. 2, some operation units include a power supply unit (DC / DC converter) that converts the voltage of the power supplied from the power supply system 100.

  The ATM 10 transits between a plurality of states such as a transaction execution state and a standby state during operation. In each state of ATM10, the number and kind of operation units which operate may differ from each other. For example, the banknote deposit / withdrawal mechanism 230 and the coin deposit / withdrawal mechanism 240 operate in the execution state of transactions for depositing and withdrawing cash, and the passbook mechanism 260 operates in the execution state of transactions for entering bankbooks. In the standby state, most of the operation units such as the operation unit 220 and the bill deposit / withdrawal mechanism 230 do not operate. For this reason, the power load of the ATM 10 varies relatively depending on the state. The power supply system 100 has a power supply capability that can handle the maximum power load of the ATM 10.

  FIG. 3 is an explanatory diagram schematically showing the configuration of the power supply system 100 in the first embodiment. As shown in FIG. 3, the power supply system 100 includes a plurality (m) of output connectors 150 for connection to the operation unit, and a plurality (n) of power supplies to the operation unit via the output connector 150. The power supply unit 110 includes a power supply control circuit 120 that controls the power supply system 100. In FIG. 3, some components are not shown. Further, in this specification, when there are a plurality of the same constituent elements and each constituent element is distinguished, the identification number is added to the end of the reference numeral of each constituent element. For example, n power supply units 110 included in the power supply system 100 illustrated in FIG. 3 are also expressed as a power supply unit 110-1, a power supply unit 110-2,..., And a power supply unit 110-n, respectively. In the case where there are a plurality of identical components, when it is not necessary to distinguish each component, the addition of an identification number to the end of the code of each component is omitted.

  Each power supply unit 110 is connected to a commercial power supply (AC power supply), converts input AC power, and outputs DC power. The power supply unit 110 includes a voltage setting unit 112 that sets an output voltage and a drive / stop unit 118 that sets whether to drive / stop under the control of the power supply control circuit 120. Further, the power supply unit 110 includes a power detection unit 114 that detects output power. The power supply unit 110 transmits a signal representing the detected output power to the power supply control circuit 120 via the signal line 116.

  The power supply control circuit 120 is output from an adder 122 serving as a power amount calculation unit that calculates a total amount of power based on a signal representing the output power of each power supply unit 110 received via the signal line 116, and the adder 122. Based on the digital value output from the A / D conversion unit 124 that converts the calculation result of the total amount of electric power into, for example, a 4-bit digital value, and the digital value output from the A / D conversion unit 124, And a logic unit 126 that determines an output voltage and transmits a signal designating whether to drive / stop or a signal designating an output voltage to each power supply unit 110 via the signal line 130. The logic unit 126 is configured using, for example, a PLD (programmable logic device) or a microcomputer.

The voltage setting unit 112 includes a D / A converter, converts a digital voltage signal transmitted from the power supply control circuit 120 into an analog voltage value, and uses the voltage as a reference voltage for power supply feedback. The output voltage of the power supply unit 110 can be changed. When a DSP (digital signal processor) or the like is used to control the power supply, the voltage setting unit 112 corresponds to a voltage setting register in the DSP, and the power supply is rewritten by rewriting the value of the voltage setting register. The output voltage of the unit 110 can be changed. Further, the signal line 130 that connects the logic unit 126 and each power supply unit 110 may be configured by serial interface connection such as USB, RS232-C, or I ² C, or may be configured by parallel interface connection. .

  The power supply unit 110 that has received the drive signal from the power supply control circuit 120 outputs DC power at the set output voltage. The power supply unit 110 that has received the stop signal from the power supply control circuit 120 stops the output of power.

  As shown in FIG. 3, the outputs of the respective power supply units 110 are connected in parallel to each other via a connection wiring 140. Further, the input side of the plurality of output connectors 150 is connected in parallel to the output connection portion of the power supply unit 110. That is, in the power supply system 100 of the present embodiment, the outputs of the plurality of power supply units 110 and the inputs of the plurality of output connectors 150 are connected in parallel via the wiring. Therefore, the power supply system 100 can supply power from each power supply unit 110 to each output connector 150.

  In the power supply system 100 in the ATM 10 of the first embodiment, it is possible to supply power from each power supply unit 110 to each output connector 150, so that the load factor is as high as possible according to the power supplied from the power supply system 100. In addition, the drive / stop of each power supply system 100 can be controlled, and the efficiency of the power supply system 100 can be improved.

  FIG. 4 is an explanatory diagram exemplarily showing the relationship between the load factor of the power source and the conversion efficiency. The load factor is a ratio of actual output power to rated output power. In general, the higher the load factor, the higher the power conversion efficiency. For example, although not shown, the conversion efficiency when the load factor is 20% is 70%, the conversion efficiency when the load factor is 80% is 83%, and the conversion efficiency when the load factor is 100% Is 85%. In the example of FIG. 4, the conversion efficiency when the load factor is 20% is 70%, and the conversion efficiency when the load factor is 80% is 85%. Note that the maximum conversion efficiency at the maximum load factor is not always obtained. In the example of FIG. 4, the conversion efficiency at the load factor of 100% is 80%.

  For example, in the relationship between the power source load factor and the conversion efficiency shown in FIG. 4, the number (n) of the power supply units 110 included in the power supply system 100 is five, and the rated output power of each power supply unit 110 is the same value. If it is assumed that Pout, the power supply system 100 can supply power Pr = Poutx5. For example, when the power P1 actually supplied by the power supply system 100 is Pr / 5, when all five power supply units 110 are driven, the load factor of the power supply is 20% and the conversion efficiency is 70%. (See FIG. 4). On the other hand, when only one power supply unit 110 is driven and the remaining four power supply units 110 are stopped, the load factor of the power supply becomes 100% and the conversion efficiency becomes 80%. Further, when the value of the electric power P1 that is actually supplied by the power supply system 100 is Pr / 4, when all five power supply units 110 are driven, the load factor of the power supply is 80% and the conversion efficiency is 85%. . In the power supply system 100 of the present embodiment, it is possible to supply power from each power supply unit 110 to each output connector 150. Therefore, by appropriately controlling driving / stopping of each power supply unit 110, the efficiency of the power supply system 100 is improved. Can be improved.

  Specifically, for example, until the value of the electric power P1 supplied by the power supply system 100 exceeds Pr / 5, the power supply control circuit 120 drives only one power supply unit 110 and stops the remaining power supply units 110. The power supply unit 110 to be driven is supplied with power to each output connector 150 in parallel. Similarly, until the value of the power P1 exceeds 2 · Pr / 5, the two power supply units 110 are driven to supply power to the output connectors 150 in parallel. When the value of the power P1 exceeds 4 · Pr / 5, all five power supply units 110 are driven to supply power to the output connectors 150 in parallel. By performing such control, the load factor of the power supply can be increased and the efficiency of the power supply system 100 can be improved.

  Even when the rated output power of each power supply unit 110 is not equal to each other, the driving / stopping of each power supply unit 110 is controlled based on the total amount of power calculated based on the output power of each power supply unit 110. Thus, similarly, the efficiency of the power supply system 100 can be improved. When the minimum power on the load side (operation unit side) connected to the power supply system 100 is known in advance, the power supply system 100 can be converted by providing at least one power supply unit 110 capable of supplying the minimum power. The efficiency can be improved satisfactorily. In the above-described embodiment, the power detection unit 114 detects the power on the output side of the power supply unit 110 and notifies the power supply control circuit 120. However, the power detection circuit 114 detects the power on the input side of the power supply unit 110 to detect the power. 120 may be notified.

B. Second embodiment:
FIG. 5 is an explanatory diagram schematically showing the configuration of the power supply system 100a in the second embodiment. The power supply system 100a of the second embodiment is different from the power supply system 100 of the first embodiment shown in FIG. 3 in that it has a current balancing section that balances the output current of each power supply unit 110. Other configurations of the power supply system 100a of the second embodiment are the same as those of the power supply system 100 of the first embodiment.

  As shown in FIG. 5, the current balancing unit includes a current balancing circuit 119 provided in each power supply unit 110 and a current signal line 160 for exchanging a signal representing the output current of each power supply unit 110. The current balancing unit realizes balancing of the output current by, for example, a maximum current tracking method.

  When a plurality of power supply units 110 are operated in parallel, if the output current of each power supply unit 110 is not in a balanced state, a design is required in which the rated output power of each power supply unit 110 is set high in order to correct the influence. This causes adverse effects such as a decrease in load factor, an increase in cost, and an increase in apparatus size. Since the power supply system 100a of the second embodiment has a current balancing unit, when the plurality of power supply units 110 are operated in parallel, the power supply from the power supply system 100a can be maximized, and the load factor is high. And the efficiency of the power supply system 100a can be improved satisfactorily.

C. Third embodiment:
FIG. 6 is an explanatory diagram schematically showing the configuration of the power supply system 100b in the third embodiment. In the power supply system 100b according to the third embodiment, a portion (hereinafter also referred to as a “connection circuit 170”) that connects each output of the plurality of power supply units 110 and each input of the plurality of output connectors 150 in parallel. A point having a first switch 172 capable of disconnecting the connection between the outputs of the unit 110, and a point including a switch control unit 128 in which the power supply control circuit 120b controls opening / closing (connection / disconnection) of each first switch 172; However, it is different from the power supply system 100 of the first embodiment shown in FIG. The first switch 172 can also disconnect the connection between the output connectors 150. Other configurations of the power supply system 100b of the third embodiment are the same as those of the power supply system 100 of the first embodiment.

  The first switch 172 is configured by a relay or a power semiconductor element (such as a power MOS FET or a power transistor). The switch control unit 128 is configured by a PLD, a microcomputer, or the like. In the example illustrated in FIG. 6, the power supply system 100 b includes l first switches 172 (first switches 172-1 to 172-1). The switch control unit 128 outputs a control signal for controlling connection / disconnection to each of the l first switches 172 in accordance with a signal representing the output power of each power supply unit 110. In FIG. 6, the connection circuit 170 and the output connector 150 may be provided on the same circuit.

  For example, at the time of maximum output of the power supply system 100b, all of the first switches 172 are set to the “connected (closed)” state, so that the power of the same voltage can be output to the operation unit side via the output connector 150. .

  Also, for example, one first switch 172 (first switch 172-1) is set to the “disconnected (open)” state, and the other first switches 172 (first switches 172-2 to 172-l) are set. Is in the “connected (closed)” state, the output of one power supply unit 110 (power supply unit 110-1) can be disconnected from the output of another power supply unit 110, and one output connector 150 (output connector) 150-1) and the other output connector 150 can be disconnected. In this state, the output voltage can be set independently for each power supply unit 110 to which the output is connected by the connection circuit 170. For example, by setting the voltage setting unit 112-1 of the power supply unit 110-1 to output 48V and setting the voltage setting unit 112 of the other power supply unit 110 to output 24V, The output connector 150-1 can output 48V power, and the other output connector 150 can output 24V power. In addition, the voltage can be the same or different during operation.

  Thus, in the power supply system 100b of the third embodiment, the connection / disconnection of the first switch 172 is controlled, and the output voltage of each of the n power supply units 110 is individually controlled, so that a maximum of n Various different output voltages can be supplied to the operating unit. Therefore, in the power supply system 100b of the third embodiment, the output voltage for the operation unit can be set flexibly.

D. Fourth embodiment:
FIG. 7 is an explanatory diagram schematically showing the configuration of the connection circuit 170c in the fourth embodiment. The connection circuit 170c of the fourth embodiment includes a second switch 174 (second switches 174-1 to 174-m) that can disconnect the connection between the parallel connection portion of the output of each power supply unit 110 and each output connector 150. 6 is different from the connection circuit 170 of the third embodiment shown in FIG. The other configuration of the connection circuit 170c of the fourth embodiment is the same as that of the connection circuit 170 of the third embodiment.

  The second switch 174 is provided corresponding to each output connector 150 and can disconnect the connection between each output connector 150 and all the power supply units 110. The second switch 174 is configured by a relay or a power semiconductor element (such as a power MOS FET or a power transistor), and is connected / disconnected in accordance with a control signal output from the switch control unit 128 (FIG. 6).

  In the power supply system 100 of the fourth embodiment, for example, in an unexpected situation, one of the operation units (the operation unit 220, the bill deposit / withdrawal mechanism 230, etc.) connected to the output connector 150 is affected by external noise or the like. When an abnormality occurs in the software control, the second switch 174 corresponding to the output connector 150 to which the operation unit is connected is temporarily disconnected (opened) to disconnect the operation unit from the power supply system 100, and then The abnormal operation unit can be easily restarted by returning the second switch 174 to the “connected (closed)” state.

  Further, for example, when the content of the abnormality of the operation unit is a hardware short circuit, the other operation units may be affected by the voltage drop and cause a failure of the ATM 10. In the power supply system 100 according to the fourth embodiment, the operation (operation) of the ATM 10 can be continued by performing the degeneration operation of disconnecting the abnormal operation unit by the second switch 174, thereby realizing the highly reliable operation of the ATM 10. can do.

  Further, in the state where there is no transaction operation of the ATM 10, the power consumption on the operation unit side can be further reduced by stopping the power supply to the operation unit that is not affected even if the power supply by the power supply system 100 is stopped. .

  FIG. 8 is an explanatory diagram schematically showing the configuration of the connection circuit 170d in a modification of the fourth embodiment. The connection circuit 170d of the modification of the fourth embodiment is different from the connection circuit 170c of the fourth embodiment shown in FIG. 7 in that the third switch 176 (third switches 176-1 and 176-2) is included. Different. The third switch 176 is a switch that can open and close the connection between the connection lines of the output connector 150 and the parallel connection portion of the output of each power supply unit 110. The third switch 176 is configured by a relay or a power semiconductor element (such as a power MOS FET or a power transistor), and is connected / disconnected in accordance with a control signal output from the switch control unit 128 (FIG. 6).

  In the modification of the fourth embodiment, the connection relationship between the power supply unit 110 and the output connector 150 can be set more flexibly. For example, when power is supplied to the single output connector 150-2 from the power supply unit 110-2 via the connection line 140-2, the second switch 174-2 is disconnected and the third switch By connecting the switch 176-2, the power path can be switched so that power is supplied from the other power supply unit 110 instead of the power supply unit 110-2 to the output connector 150-2. Thus, in the modification of the fourth embodiment, flexible operation of the power supply system 100 can be realized.

  9 and 10 are explanatory diagrams showing the flow of ATM mode control processing in the power supply system of the fourth embodiment. The ATM mode control process is a process for setting and controlling the power supply mode of the power supply system 100 in accordance with the state of the ATM 10.

  FIG. 11 is an explanatory diagram exemplarily showing a power supply mode of the power supply system 100. As shown in FIG. 11, in this embodiment, the power supply mode of the power supply system 100 is a total of four power output modes (transaction mode), standby mode, and two energy saving modes (energy saving modes A and B). The power mode is set in advance.

  The maximum output mode (transaction mode) is a power supply mode when the ATM 10 executes a transaction operation. In the maximum output mode, all the power supply units 110 are driven so that power can be supplied to all the operation units, and the output voltage of the power supply unit 110 is set to two types of 48V and 24V. The second switch 174 (see FIG. 7) is set to the “connected (closed)” state.

  The standby mode is a power supply mode when the ATM 10 performs a standby operation. In the standby mode, the ATM 10 is in a state where an immediate transaction process can be started when a customer is detected by the customer detection unit 270 or the customer imaging unit 280. In the standby mode, only one power supply unit 110 whose capacity is set so that power can be supplied to the operation units (the control unit 200 and the customer detection unit 270) that operate in the standby mode is driven. Further, in the standby mode, the output voltage of the driven power supply unit 110 is set to the output voltage of the operation unit that operates in the standby mode (24 V in this embodiment), and all the second switches 174 are “connected ( Closed) "state.

  The energy saving mode is a power supply mode that can reduce power consumption more than the standby mode. In the energy saving mode, the ATM 10 is in a state that requires the startup process to be executed after the customer is detected by the customer detection unit 270 or the customer imaging unit 280 until the transaction process is started. In the energy saving mode, only one power supply unit 110 whose capacity is set so that power can be supplied to the operation unit operating in the energy saving mode is driven, and the output voltage of the driven power supply unit 110 is set to the standby mode. It is set to the output voltage (24V in this embodiment) of the operating unit that sometimes operates. In the energy saving mode, at least a part of the second switch 174 corresponding to the output connector 150 connected to the operation unit that does not operate in the energy saving mode is set to the “cut (open)” state. In the startup process, a process of changing the second switch 174 in the “disconnected (open)” state to the “connected (closed)” state is performed. Note that the number of second switches 174 that are set to the “cut (open)” state in the energy saving mode A is smaller than the number of second switches 174 that are set to the “cut (open)” state in the energy saving mode B. Therefore, the energy saving mode A has a smaller energy saving effect than the energy saving mode B, but the time required for the startup process in the energy saving mode A is shorter than the time required for the startup process in the energy saving mode B.

  Information on the state of the power supply system 100 (number of power supply units 110 to be driven, output voltage, etc.) corresponding to each power supply mode (maximum output mode, standby mode, energy saving mode A and B) shown in FIG. 290 and is referred to by the control unit 200.

  The correspondence information includes not only the number of power supply units 110 to be driven but also information that specifies which power supply unit 110 is to be driven. When there are two types of output voltages, the correspondence information includes information for specifying the correspondence between each output voltage and the power supply unit 110. The correspondence information includes information indicating which second switch 174 is opened and which second switch 174 is closed. The correspondence relationship information may include information indicating a relationship between each power mode and the state of another component such as the open / close state of the first switch 172.

The ATM mode control process (FIG. 9) is started when the ATM 10 is started. Before starting the ATM 10, nothing is displayed on the operation unit 220 (touch panel) as shown in FIG. When activation of the ATM 10 is started, the power supply system 100 starts supplying power to the control unit 200 (step S110). Next, the control unit 200 transmits information to the power supply system 100. Information transmitted from the control unit 200 to the power supply system 100 includes, for example, information for specifying the driving / stopping of each power supply unit 110, information for specifying the output voltage of each power supply unit 110, each first switch 172, Information specifying connection / disconnection of each second switch 174 and information specifying settings (overvoltage value, overcurrent value, temperature protection value) at the time of abnormality of each power supply unit 110 are included. Information transmission between the control unit 200 and the power supply system 100 can be executed via a serial interface such as USB, RS232-C, or I ² C, or a parallel interface.

  The power supply system 100 that has received the information from the control unit 200 enters a standby state (step S130). Next, the control unit 200 performs an initial diagnosis of each operation unit (step S140). During the initial diagnosis execution, a screen (standby request screen) shown in FIG. After completion of the initial diagnosis, the control unit 200 determines whether or not the state of the customer detection unit 270 (OFF (non-detection) in the initial state) has changed (step S150). If there is a change in the state of customer detection unit 270 (when a customer is detected), power supply system 100 is set to the transaction mode (step S160). In the transaction mode, the screen (transaction start selection screen) shown in FIG. 14 is displayed on the operation unit 220, and when the “start” button on which the customer is displayed is selected, the screen shown in FIG. Screen) is displayed. Thereafter, predetermined transaction processing is executed according to the customer's selection. On the other hand, when there is no change in the state of the customer detection unit 270 (when no customer is detected), the power supply system 100 is set to the standby mode (step S170). In the standby mode, the screen shown in FIG. 16 (advertisement display screen) is displayed on the operation unit 220. In the standby mode, nothing may be displayed on the operation unit 220 as shown in FIG.

  When the transaction processing in ATM 10 ends (step S210 in FIG. 10), the control unit 200 monitors whether the state (ON (detection)) of the customer detection unit 270 has changed (turned off (not detected)). (Step S220). When the state of the customer detection unit 270 has changed (becomes OFF (non-detection)), or when the ATM 10 is in the standby mode (step S170 in FIG. 9), the control unit 200 operates in the energy saving mode. A determination regarding the transition condition is made (step S230). In the present embodiment, the current time is set to a quiet time zone as the transition condition to the energy saving mode B, and the current time is set to the middle processing time zone as the transition condition to the energy saving mode A. Therefore, the current time is set to be a busy time zone as a condition for not shifting to the energy saving mode (becomes the standby mode). The quiet time zone, the middle processing time zone, and the busy time zone are set in advance according to the setting location of the ATM 10.

  When it is determined in the determination regarding the energy saving mode transition condition (step S230) that the busy time zone is set, the power supply system 100 is set to the standby mode (step S240). In the standby mode, when a customer is detected by the customer detection unit 270 or the like, the power supply system 100 shifts to the transaction mode, and the ATM 10 starts transaction processing.

  In the determination regarding the energy saving mode transition condition (step S230), when it is determined that it is the middle processing time zone, the process of shifting the power supply system 100 to the energy saving mode A is started (step S250). In this case, the elapse of a predetermined time is waited (step S260), and then the control unit 200 transmits information to the power supply system 100 (step S270). The information transmitted is the same as the information transmitted in step S120 (FIG. 9). The power supply system 100 that has received the information performs drive / stop setting and output voltage setting of the power supply system 100 corresponding to the energy saving mode A (step S280). With the above processing, the transition processing to the energy saving mode A is completed (step S290). In the energy saving mode A, nothing is displayed on the operation unit 220 as shown in FIG. When a customer is detected by the customer detection unit 270 or the like before the predetermined time has elapsed (step S260), the power supply system 100 shifts to a transaction mode, and the ATM 10 executes a transaction process.

  In the determination regarding the energy saving mode transition condition (step S230), when it is determined that it is a quiet time zone, the process of shifting the power supply system 100 to the energy saving mode B is started (step S300). The transition process to the energy saving mode B (steps S300 to S340) is performed in the same manner as the transition process to the energy saving mode A. Even in the energy saving mode B, nothing is displayed on the operation unit 220 as shown in FIG.

  When the state of the power supply system 100 is the standby mode or the energy saving mode, the control unit 200 monitors the transaction start (step S180 in FIG. 9), and when the transaction is started, the processing after step S120 in FIG. 9 is executed. . When the transaction is started from the state of the energy saving mode A or B, a screen (standby request screen) shown in FIG.

  Note that the information transmitted from the control unit 200 to the power supply system 100 in step S120 of FIG. 9 or steps S270 and S320 of FIG. 10 may be information specifying the power supply mode (see FIG. 11). In this case, the power supply system 100 that has received the information specifying the power supply mode drives / stops the power supply unit 110, sets the output voltage, sets the first switch 172, The connection / disconnection of the second switch 174 is set.

  As described above, in the ATM mode control process in the ATM 10 of the fourth embodiment, the mode of the power supply system 100 can be appropriately set according to the state of the ATM 10, and the efficiency of the power supply system 100 can be improved. In addition, the power consumption of the ATM 10 can be reduced.

E. Example 5:
18 and 19 are explanatory diagrams showing the flow of ATM mode control processing in the power supply system of the fifth embodiment. The ATM mode control processing in the power supply system of the fifth embodiment shown in FIGS. 18 and 19 includes power supply to the control unit 200 by the power supply system 100 (step S110 in FIG. 18) and information from the control unit 200 to the power supply system 100. In transmission (step S120), after the power supply system 100 standby state (step S130), information transmission from the power supply system 100 to the control unit 200 (step S132) is executed, and in the transition to the energy saving mode A or B, FIG. 9 and FIG. 10 show that information transmission (step S282 or S332) from the power supply system 100 to the control unit 200 is executed after the power supply system 100 is switched to the energy saving mode (step S280 or S330). ATM mode control processing in the power system of the fourth embodiment It made. The other contents of the ATM mode control process of the fifth embodiment are the same as those of the ATM mode control process of the fourth embodiment.

  In step S <b> 132 of FIG. 18, the power supply system 100 notifies the control unit 200 that the power supply system 100 has been normally set. In the ATM mode control process of the fifth embodiment, since information transmission from the power supply system 100 to the control unit 200 is performed, it is possible to suppress the occurrence of power supply malfunction in the ATM 10. For example, it is possible to suppress the occurrence of problems such as power down due to the ATM 10 starting transaction processing while the power supply system 100 remains in the energy saving mode due to an unexpected situation. Although not illustrated, when it is determined that the setting of the power supply system 100 is not normally performed based on the information transmitted from the power supply system 100 to the control unit 200, the setting of the power supply system 100 is normally performed. The information transmission from the control unit 200 to the power supply system 100 (step S120 in FIG. 18) and the information transmission from the power supply system 100 to the control unit 200 (step S132) are repeatedly executed until it is determined that they have been performed.

F. Variations:
The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

F1. Modification 1:
The structure of ATM10 in each said Example is an example to the last, and can deform | transform variously. For example, the ATM 10 does not have to include all the components illustrated in FIG. 2 and may not include the customer imaging unit 280, for example. Further, the ATM 10 may have other components not shown in FIG. 2, for example, a voice guidance unit or a vein authentication mechanism. The configuration of the power supply system 100 in each of the above embodiments is merely an example, and various modifications can be made. For example, the power supply system 100 may have at least two power supply systems 100. In the above embodiment, a part of the configuration realized by hardware may be replaced by software, and conversely, a part of the configuration realized by software may be replaced by hardware. Good.

F2. Modification 2:
In the above embodiment, four modes are set as the modes of the power supply system 100 (see FIG. 11), but any of the four modes may not be set as the modes of the power supply system 100, A mode other than the mode may be set.

F3. Modification 3:
In each of the above embodiments, the power supply system 100 for the ATM 10 has been described. However, the present invention is applicable to a power supply apparatus for a device having a plurality of operation units that perform a predetermined operation.

10 ... Automatic teller machine (ATM)
DESCRIPTION OF SYMBOLS 100 ... Power supply system 110 ... Power supply unit 112 ... Voltage setting part 114 ... Electric power detection part 116 ... Signal line 118 ... Drive / stop part 119 ... Current balance circuit 120 ... Power supply control circuit 122 ... Adder 126 ... Logic part 128 ... Switch control Unit 130 ... Signal line 140 ... Connection wiring 150 ... Output connector 160 ... Current signal line 170 ... Connection circuit 172 ... First switch 174 ... Second switch 176 ... Third switch 200 ... Control unit 210 ... Line connection unit 220 ... Operation unit 230 ... Bill deposit / withdrawal mechanism 240 ... Coin deposit / withdrawal mechanism 250 ... Card / detail slip mechanism 260 ... Passbook mechanism 270 ... Customer detection unit 280 ... Customer imaging unit 290 ... Storage unit

Claims (7)

A power supply device for a device having a plurality of operation units,
A plurality of connectors for connection with the plurality of operating units;
A plurality of power supply units for supplying power to the plurality of operation units via the plurality of connectors;
At least one first switch capable of disconnecting the connection between the outputs of the plurality of power supply units by connecting the outputs of the plurality of power supply units and the inputs of the plurality of connectors in parallel; A connection wiring portion having at least one second switch capable of disconnecting connection between the connector and all of the plurality of power supply units with respect to the two connectors;
A power detector that detects output power of each of the plurality of power supply units;
A voltage setting unit that sets each output voltage of the plurality of power supply units independently for each of the power supply units to which an output is connected by the connection wiring unit according to the open / closed state of the first switch;
A plurality of power supply modes for specifying a driving / stopped state of each of the plurality of power supply units, an open / close state of the first switch, and an open / closed state of the second switch are received from the device having the plurality of operation units. An information receiving unit,
Based on the detection result of the output power, a total amount of power of the plurality of power supply units is calculated, and control of driving / stopping of each of the plurality of power supply units based on the calculated total amount of power, and the output power detection result and controls the opening and closing of said first switch and said second switch based on, the power mode selected based on a predetermined condition including at least time of said received plurality of power modes And a power control unit configured to control driving / stopping of each of the plurality of power supply units, opening / closing of the first switch, and opening / closing of the second switch. The power supply device according to claim 1,
The power supply control unit, when the total amount of power falls below a predetermined first threshold, leaves at least one of the power supply units to be driven, and stops the other power supply units, A power supply apparatus that causes the power supply unit to be driven to supply power to the plurality of operation units. The power supply device according to claim 1 or 2, wherein
The power supply control unit drives at least one power supply unit among the power supply units to be stopped when the total amount of power exceeds a predetermined second threshold, and causes the power supply units to be driven to A power supply unit that supplies power to the operation unit. The power supply device according to any one of claims 1 to 3, further comprising:
Information specifying the drive / stop state of each of the plurality of power supply units, the open / close state of the first switch, and the open / close state of the second switch is transmitted to the device having the plurality of operation units. A power supply device comprising an information transmission unit. The power supply device according to any one of claims 1 to 4, further comprising:
A power supply apparatus comprising a current balancing unit that balances output currents of the plurality of power supply units. The power supply device according to any one of claims 1 to 5,
The power supply mode includes at least a first power saving mode and a second power saving mode,
The second power saving mode is a power supply apparatus in which there are more second switches in the closed state than the first power saving mode. A method for controlling a power supply device for a device having a plurality of operation units, comprising:
The power supply device
A plurality of connectors for connection with the plurality of operating units;
A plurality of power supply units for supplying power to the plurality of operation units via the plurality of connectors;
At least one first switch capable of disconnecting the connection between the outputs of the plurality of power supply units by connecting the outputs of the plurality of power supply units and the inputs of the plurality of connectors in parallel; A connection wiring portion having at least one second switch capable of disconnecting the connection between the connector and all of the plurality of power supply units.
The method
(A) detecting the output power of each of the plurality of power supply units;
Independently setting each output voltage of the plurality of power supply units for each of the power supply units to which an output is connected by the connection wiring portion according to an open / closed state of the first switch;
A plurality of power supply modes for specifying a driving / stopped state of each of the plurality of power supply units, an open / close state of the first switch, and an open / closed state of the second switch are received from the device having the plurality of operation units. And a process of
(B) calculating a total amount of power of the plurality of power supply units based on the detection result of the output power, and controlling driving / stopping of each of the plurality of power supply units based on the calculated total amount of power; and controlling opening and closing of said first switch and said second switch based on the detection result of the output power, which is selected based on a predetermined condition including at least time of said received plurality of power modes And controlling each of the plurality of power supply units to be driven / stopped, to open / close the first switch, and to open / close the second switch based on a power supply mode.

Images