JP4470788B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device in which a light source is controlled by a control signal transmitted and received using radio waves as a medium.

  Conventionally, for example, a remote control device that includes a human sensor that detects a human body and transmits a control signal using radio waves as a medium when the human sensor is detected, and a light source based on the control signal transmitted from the remote control device. There has been provided a lighting device including a lighting fixture having a lighting control unit to be controlled (see, for example, Patent Document 1).

  In this type of lighting device, the following three methods are conceivable as methods for improving the success rate of transmission and reception of control signals by suppressing the influence of environmental noise.

  The first method is a method of providing two transmission units and reception units having different frequency channels, and selecting and using one of the reception units that can better receive the control signal in the reception side device (so-called diversity). Method). According to this method, even if noise is mixed in one frequency channel, there is a possibility that transmission / reception may succeed through the other frequency channel, so the success rate of transmission / reception is improved.

  In the second method, a confirmation signal transmission unit that transmits a confirmation signal using radio waves as a medium when a control signal is received is provided in the reception side device, and a confirmation signal reception unit that receives the confirmation signal is provided in the transmission side device. The transmission side device repeats the transmission of the control signal until the confirmation signal is received. According to this method, if the transmission of the control signal is not successful, the control signal is transmitted again, so that the transmission / reception success rate is improved.

In the third method, a setting unit in which a frequency channel is set by a user is provided in each of the transmission side device and the reception side device, and each of the transmission unit and the reception unit is set in the setting unit from among a plurality of frequency channels. This is a method of using a different frequency channel. According to this method, the success rate of transmission and reception is improved by the user appropriately setting the frequency channel according to the radio wave condition.
JP 2003-217869 A

  However, in the first method, since it is necessary to provide two transmission units and two reception units, the manufacturing cost increases.

  Further, in the second method, since it is necessary to provide a confirmation signal transmission unit and a confirmation signal reception unit, the manufacturing cost increases.

  Furthermore, in the third method, it is difficult for the user to know which frequency channel should be set, and an operation for setting the frequency channel is necessary, which is troublesome.

  The present invention has been made in view of the above reasons, and an object thereof is to provide a lighting device capable of improving the success rate of transmission and reception of control signals while avoiding an increase in manufacturing cost and complication of operation. It is in.

According to the first aspect of the present invention, a trigger signal is output by a transmission unit that transmits a control signal using one of a plurality of frequency channels as a medium, a trigger unit that outputs a trigger signal under a predetermined condition, and the trigger unit. A remote control device having a remote control unit for controlling the transmission unit to transmit a predetermined control signal sometimes, and alternatively, the transmission unit selectively receives radio waves of a plurality of frequency channels for transmitting the control signal. A receiving unit, a lighting unit that turns on the light source, an illumination control unit that controls the lighting unit according to a control signal received by the receiving unit, and an appliance body that holds the receiving unit, the lighting unit, and the lighting control unit A lighting device comprising a lighting device having a header portion indicating that the control signal has a constant data length and is a control signal, and a control content to be performed by the lighting control portion having a constant data length The Each time the trigger signal is output from the trigger unit, the remote control unit of the remote control device transmits the same control signal to the transmitter unit by changing the frequency channel at least once, at least once. When the control signal is not received by the receiving unit, the lighting control unit of the lighting fixture periodically changes the frequency channel received by the receiving unit, and when the header part of the control signal is received by the receiving unit In the lighting device that maintains the frequency channel received by the receiving unit at least until the reception of the data portion of the control signal is completed , the lighting fixture can inform the user which frequency channel has received the most control signal. The remote control device has a signal setting unit in which a frequency channel configuration of a control signal to be transmitted a plurality of times is set by a user. Control unit is characterized by controlling the transmission unit so that the control signal at a set frequency channel configuration in the signal setting unit is transmitted.

According to the present invention, even when one frequency channel cannot be used due to noise, there is a possibility that another frequency channel can be used. Therefore, the success rate of transmission and reception of control signals can be improved. Further, since there is no need to add a transmission unit or a reception unit, an increase in manufacturing cost can be suppressed, and the operation is not complicated. In addition, by setting the remote control device so that the frequency channel with a high success rate of transmission / reception notified by the notification unit is preferentially used, the transmission / reception of the control signal can be easily succeeded in a shorter time. In addition, the success rate of control signal transmission / reception can be further improved.

The remote control device transmits the same control signal a plurality of times, at least once, changing the frequency channel, and the luminaire periodically changes the received frequency channel when the control signal is not received. Therefore, even when one frequency channel cannot be used due to noise, there is a possibility that another frequency channel can be used, so that the success rate of transmission and reception of control signals can be improved. Further, since there is no need to add a transmission unit or a reception unit, an increase in manufacturing cost can be suppressed, and the operation is not complicated. In addition, by setting the remote control device so that the frequency channel with a high success rate of transmission / reception notified by the notification unit is preferentially used, the transmission / reception of the control signal can be easily succeeded in a shorter time. In addition, the success rate of control signal transmission / reception can be further improved.

Hereinafter, a reference example related to the present invention and the best mode for carrying out the present invention will be described with reference to the drawings.

( Reference example )
In this reference example , as shown in FIG. 2, when a human body M is detected, a remote control device 1 that transmits control signals S1 and S2 (see FIG. 1) using, for example, a weak radio wave as a medium, and a ceiling surface (not shown) And a lighting fixture 2 that is provided with a lamp body (not shown) as a light source and that turns on the lamp when a control signal is received.

  As shown in FIG. 3, the remote control device 1 includes a transmission unit 11 that alternatively transmits radio waves of a plurality of frequency channels, and a pyroelectric sensor that detects, for example, a heat ray radiated from a human body M. When the human body M is detected, the human sensor unit 12 as a trigger unit that outputs a predetermined detection signal (trigger signal), and when the human sensor unit 12 outputs a detection signal, the transmission unit 11 is controlled. And a control unit 13 for transmitting predetermined control signals S1 and S2. Since the transmission unit 11, the human sensor unit 12, and the control unit 13 can be realized by well-known techniques, detailed descriptions thereof are omitted.

  In addition, the luminaire 2 includes a receiving unit 21 that alternatively receives radio waves from a plurality of frequency channels through which the transmission unit 11 of the remote control device 1 transmits control signals S1 and S2, and a socket to which a lamp is connected. A lighting unit 22 for supplying power to the lamp through a socket and lighting it, and an illumination control unit 23 for lighting the lamp by controlling the lighting unit 22 when the control signals S1 and S2 are received by the receiving unit 21; Is provided. Since the receiving unit 21, the lighting unit 22, and the illumination control unit 23 can be realized by well-known techniques, detailed descriptions thereof are omitted.

The operation of this reference example will be described. In remote control device 1, when human body M is detected by human sensor unit 12, a detection signal is input from human sensor unit 12 to control unit 13. When the detection signal is input, the control unit 13 controls the transmission unit 11 to transmit the control signal S1 once through the first frequency channel F1, as shown in FIGS. The frequency channel is changed to the second frequency channel F2, and the control signal S2 having the same content is transmitted again. After changing the frequency channel, the control unit 13 waits for at least a time necessary for the output of the transmission unit 11 to stabilize (for example, 50 ms) before transmitting the control signals S1 and S2. Here, each of the control signals S1 and S2 is a 2400 bps signal, and as shown in FIG. 4, header portions S1a and S1b having a data length of 192 ms including 20-bit identification data indicating the control signals S1 and S2, and This is a signal with a signal length of 384 ms, comprising data portions S1a and S1b with a data length of 192 ms including 20-bit control data indicating the contents of control to be performed by the illumination control unit 23.

  When the control signals S1 and S2 are not received by the receiving unit 21, the lighting control unit 23 of the lighting fixture 2 periodically sets the frequency channel received by the receiving unit 21 (for example, every 100 ms) to the first frequency channel F1. And the second frequency channel F2 are alternately changed.

  Then, as shown in FIG. 1A, when the header part S1a of the control signal S1 is received by the first frequency channel F1, the frequency channel received by the receiving part 21 until the reception of the data part S1b is completed. Is fixed to the first frequency channel F1. Here, it takes about 40 ms for the identification data to be recognized after the reception of the header part S1a is started. After the reception of the data part S1b is completed, the lamp is turned on according to the content of the control data included in the data part S1b. Further, based on the total time of the transmission interval 0.05 s of the control signals S1 and S2 and the data length 384 ms of the control signal S2 so that the same control signal S2 is not continuously received in the second frequency channel F2. In addition, reception of radio waves by the receiving unit 21 is stopped for a long time (for example, 450 ms).

  Also, as shown in FIG. 1B, when the control signal is not received on the first frequency channel F1 due to the environmental noise and the header portion S2a of the control data S2 is received on the second frequency channel F2, the data portion Until the reception of S2b is completed, the frequency channel received by the receiving unit 21 is fixed to the second frequency channel F2. After the reception of the data part S2b is completed, the lamp is turned on according to the content of the control data included in the data part S2b.

  According to the above configuration, even when one frequency channel cannot be used due to noise, there is a possibility that another frequency channel can be used. Therefore, the success rate of transmission and reception of the control signals S1 and S2 can be improved. Further, since there is no need to add the transmitter 11 and the receiver 21, an increase in manufacturing cost can be suppressed and the operation is not complicated.

  Note that the number of frequency channels is not limited to two, and three frequency channels may be used as shown in FIG. In the example of FIG. 5, the control signals S1 and S2 are not received in the first and second frequency channels F1 and F2, and the header portion S3a and the data portion of the control signal S3 transmitted continuously in the third frequency channel F3. S3b has been received. In addition, when the control signal S1 to S3 is not received by the reception unit 21, the illumination control unit 23 changes the frequency channel received by the reception unit 21 from the first frequency channel F1 to the second frequency channel F2 to the third. Frequency channel F3 → first frequency channel F1... In this case, the frequency channel switching interval is, for example, 64 ms, which is one third of the data length 192 ms of the header portions S1b, S2b, and S3b. Thus, if the number of frequency channels to be used is increased, the success rate of transmission / reception of the control signals S1 and S2 can be further improved.

(Working-shaped state)
Since the basic configuration of the present embodiment is the same as that of the reference example , common portions are denoted by the same reference numerals, and illustration and description thereof are omitted.

  In the present embodiment, the user U (see FIG. 7) operates the remote control device 1 to check in which frequency channel the success rate of transmission / reception of the control signals S1 and S2 is high. It is possible to arbitrarily set a frequency channel to be preferentially used.

  More specifically, the remote control device 1 will be described later by having an operation unit 14 operated by a user U and a light emitting diode controlled by the remote control control unit 13 to light the light emitting diode. And a display unit 15 for displaying the completion of the communication test. The operation unit 14 includes a test start button (not shown) for starting a communication test for checking which frequency channel the success rate of transmission / reception of the control signals S1 and S2 is high, and a notification request button for notifying the result of the communication test (Not shown) and a setting button (not shown) as a signal setting unit in which the frequency channel configuration of the control signals S1 and S2 transmitted from the remote control device 1 is set by the user U.

Moreover, the lighting fixture 2 is provided with the alerting | reporting part 24 which alert | reports the result of a communication test by having a buzzer and being controlled by the illumination control part 23, and sounding a buzzer.

  The operation of this embodiment will be described. As shown in FIG. 7A, when the user U operates the test start button of the operation unit 14 of the remote control device 1, the remote control control unit 13 controls the transmission unit 11 to send a predetermined test start signal to the control signal. Radio waves are transmitted as a medium in the same manner as in S1 to S3. Thereafter, as shown in FIG. 7B, the remote controller 13 controls the transmitter 11 to switch the frequency channel every time until a predetermined test time (for example, 24 hours) elapses. A test signal is repeatedly transmitted, for example, every 15 minutes. The test signal transmission interval and test time are determined such that the test signal is transmitted the same number of times in all frequency channels. The test signal includes, for example, a header portion and a data portion having a data length common to the header portions S1a to S3a and the data portions S1b to S3b of the control signals S1 to S3, respectively. When the predetermined time has elapsed, as shown in FIG. 7C, the remote controller control unit 13 displays the completion of the communication test by controlling the display unit 15 to turn on the light emitting diode.

  When the receiving unit 21 receives the test start signal, the lighting control unit 23 of the lighting fixture 2 controls the notification unit 24 to sound the buzzer and notify the start of the communication test. Thereafter, until the notification request signal described later is received, the number of times the test signal is received is counted for each frequency channel without controlling the lighting unit 22 or stopping the receiving unit 21.

  The user U sees the lighting of the light emitting diode of the display unit 15 to know the completion of the communication test, and operates the notification request button of the operation unit 14 as shown in FIG. When the notification request button is operated, the remote control control unit 13 controls the transmission unit 11 to transmit a predetermined notification request signal using radio waves as a medium in the same manner as the control signals S1 to S3. In the lighting device 1, when the notification request signal is received by the reception unit 21, the illumination control unit 23 compares the number of times the test signal is received between the frequency channels and controls the notification unit 24 to sound the buzzer. Let At this time, the buzzer is sounded so as to make a different sound depending on which frequency channel is the frequency channel with the highest number of times the test signal has been received. For example, when two frequency channels are used, the buzzer sounds once when the most test signals are received on the first frequency channel, and the most test signals are received on the second frequency channel. Sometimes the buzzer is sounded twice shortly, and the buzzer is sounded long if the first frequency channel and the second frequency channel receive the same number of test signals.

  Then, the user U knows which frequency channel has the highest success rate of test signal transmission / reception by the notification of the notification unit 24, and operates the operation unit 14 of the remote control device 1 so as to preferentially use the frequency channel. The setting button is operated. Specifically, for example, a frequency channel to be preferentially used is designated.

  Thereafter, when a detection signal is input, the remote control control unit 13 controls the transmission unit 11 so that the control signal is transmitted in a frequency channel configuration in which the frequency channel designated by the setting button is preferentially used. To do. For example, when the first frequency channel F1 is designated, as shown in FIG. 8A, the control signal S1 is first transmitted through the first frequency channel F1, and when the second frequency channel F2 is designated, As shown in FIG. 8B, the control signal S2 is transmitted / received by using the frequency channel designated by the setting button first, such as transmitting the control signal S2 first by the second frequency channel F2. Make it easier to succeed in a shorter time. Alternatively, when the first frequency channel F1 is designated, as shown in FIG. 9A, the control signal S1 is transmitted twice on the first frequency channel F1 and the control signal S2 is set to 1 on the second frequency channel F2. When the second frequency channel F2 is designated, as shown in FIG. 9B, the control signal S2 is transmitted twice through the second frequency channel F2 and the control signal S1 is transmitted through the first frequency channel F1. By increasing the number of times the control signals S1 and S2 are transmitted on the frequency channel designated by the setting button, the success rate of transmission and reception of the control signals S1 and S2 is further improved. Note that the frequency channel configuration may be set to the setting button in a specific form such that the frequency channels are used in any order and the control signals S1 and S2 are transmitted with which frequency channel. In this case, the remote controller 13 transmits the control signals S1 and S2 with the frequency channel configuration set in the setting button.

  According to the above configuration, by changing the frequency channel preferentially used according to the situation, it is easier to successfully transmit and receive the control signals S1 and S2, and the transmission and reception of the control signals S1 and S2. The success rate can be further improved.

It is explanatory drawing which shows operation | movement of the reference example relevant to this invention, (a) shows operation | movement when a control signal is received by the 1st frequency channel, (b) shows control signal by the 1st frequency channel. The operation when no is received is shown. It is a schematic block diagram which shows the same as the above. It is a block diagram which shows the same as the above. It is explanatory drawing which shows the structure of a control signal same as the above. It is explanatory drawing which shows operation | movement of another form same as the above. It is a block diagram showing a preferred form status of the present invention. It is explanatory drawing which shows the operation | movement at the time of performing a communication test in the same as the above, (a)-(d) shows a different stage, respectively. It is a figure which shows an example of operation | movement of a remote control apparatus same as the above, (a) (b) shows the state which gave priority to a different frequency channel, respectively. It is a figure which shows another example of operation | movement of a remote control apparatus same as the above, (a) (b) shows the state which gave priority to a different frequency channel, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Remote control apparatus 2 Lighting fixture 11 Transmission part 12 Human sensor part 13 Remote control part 14 Operation part 20 Instrument main body 21 Reception part 22 Lighting part 23 Lighting control part 24 Notification part S1-S3 Control signal

Claims (1)

A transmission unit that transmits a control signal using radio waves of any of a plurality of frequency channels as a medium, a trigger unit that outputs a trigger signal under a predetermined condition, and a predetermined control signal that is output when the trigger signal is output by the trigger unit A remote control device having a remote control unit for controlling the transmission unit to transmit,
A receiving unit that selectively receives one of radio waves of a plurality of frequency channels through which the transmitting unit transmits a control signal, a lighting unit that turns on the light source, and a lighting unit that is responsive to the control signal received by the receiving unit. A lighting device comprising: a lighting control unit to control; and a lighting fixture having a receiving unit, a lighting unit, and a fixture main body that holds the lighting control unit,
The control signal is composed of a header portion having a constant data length and indicating a control signal, and a data portion having a constant data length and indicating the content of control to be performed by the illumination control portion,
The remote control unit of the remote control device, every time a trigger signal is output from the trigger unit, causes the same control signal to be transmitted to the transmission unit by changing the frequency channel at least once, at least once,
When the control signal is not received by the receiving unit, the lighting control unit of the luminaire periodically changes the frequency channel received by the receiving unit, and at least when the header part of the control signal is received by the receiving unit, In the lighting device that maintains the frequency channel received by the receiving unit until reception of the data portion of the control signal is completed ,
The lighting fixture has a notification unit that notifies the user of which frequency channel the most control signals are received,
The remote control device has a signal setting unit in which the frequency channel configuration of the control signal to be transmitted a plurality of times is set by the user, and the remote control unit transmits the control signal with the frequency channel configuration set in the signal setting unit In this way, the lighting device controls the transmission unit .

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