JP5457804B2 - Lighting control system - Google Patents

Description

  The present invention relates to a lighting control system.

  Conventionally, there is a lighting control system consisting of a plurality of lighting fixtures each assigned an individual logical address and a controller connected to the plurality of lighting fixtures via a transmission line. For time schedules, switch operations, sensor inputs, etc. In response, the controller transmits a transmission signal including the logical address of the lighting fixture to be controlled, thereby performing control such as turning on / off the lighting fixture to which the logical address is assigned and changing the dimming level.

  In this type of lighting control system, it is necessary to set in advance a logical address assigned to each lighting fixture in the controller. For example, a logical label of the lighting fixture is attached to the lighting fixture. After the installer has installed the lighting fixtures based on the construction drawing that shows the relationship between the logical address and the construction location so that the installer can grasp the addresses, the logic of each lighting fixture is used using a remote controller etc. A method such as setting an address is conceivable.

  In this way, each luminaire only needs to be able to receive a transmission signal from the controller, so it is possible to use a relatively inexpensive CPU. However, the management of logical addresses assigned to the luminaires and the logical addresses are clearly specified. It took time and effort to check the management costs such as pasting stickers, creating construction drawings, and checking logical addresses during construction.

  Therefore, as a method for presetting the logical address in the controller, for example, as described in Patent Document 1, the controller outputs a request signal for requesting a logical address to each lighting fixture, and each lighting fixture receives a request signal. In response to this, a method has been proposed in which the logical addresses of all lighting fixtures are set in the controller by transmitting its own logical address to the controller. By using this method, the installer only has to operate the controller only with a remote controller or the like so as to start acquisition of the logical address, and the labor required for construction is greatly reduced.

JP-A-7-46258

  However, if all the lighting fixtures send a logical address all at once in response to a request signal from the controller, the signal containing the logical address is broken on the communication line, or the waveform of the signal is deformed, and the controller sets the wrong logical address. There was a possibility of getting.

  As a method of avoiding this problem, a method in which the luminaire transmits its own logical address by a packet method can be considered. However, when the size of the lighting control system increases and the number of luminaires increases, the time required for signal transmission There is a problem that the time for acquiring a logical address becomes very long.

  Another possible avoidance method is to provide a remote control receiver for each lighting fixture and send a logical address in response to an operation signal from the remote control. As the lighting control system is large and the number of lighting fixtures increases, the construction work becomes very large. There was also a problem of end.

  The present invention has been made in view of the above-described reasons, and the object of the present invention is to reduce the time required for setting a logical address in a controller and to enable the setting of a logical address in a short time. Is to provide.

To achieve the above object, in the invention of claim 1, a plurality of luminaires which are assigned separate logical address, the desired the luminaire using the logical address assigned to each of the luminaire and a controller for controlling, said controller transmits a storage unit that stores the logical address of the luminaire, the transmission signal including a request signal requesting the logical address to the luminaire, transmitted from the luminaire Each of the lighting fixtures receives the request signal, and, as the return signal, the number of bits based on the logical address assigned to the self-device is continuously lower-order. The bit string set to ON is transmitted from the most significant bit to the higher order bit, and the controller continuously transmits the bit string in the received return signal. Based on the number of bits bets it has been turned ON, and acquires the logical address.

  In the invention of claim 2, in the invention of claim 1, when the controller receives the return signal, the controller sends the request signal to the luminaire to which the logical address obtained based on the return signal is assigned. A transmission signal including a return prohibiting instruction for preventing transmission of a return signal even when received is transmitted.

According to the invention of claim 1, in response to the request signal received by the luminaire, the controller transmits a return signal composed of a bit string that can restore at least one logical address even if a plurality of return signals overlap. Can reduce the possibility of acquiring the wrong logical address. In addition, since the luminaire sequentially transmits the logical address as a return signal in response to a request signal from the controller, it is possible to reduce the labor of the installer and set the logical address in a short time. Further, the controller can obtain the logical address from the sum of the bit values of the bit string indicated by the received return signal by setting the return signal as a bit string in which the bit corresponding to the logical address assigned to the lighting fixture is H level. it can.

  According to the second aspect of the present invention, it is possible to reduce the possibility that the return signals are duplicated again by the lighting fixture in which the logical address acquired from the return signal by the controller is set, and the return signals are duplicated again. The logical address can be set with.

It is a schematic block diagram which shows the structure of the illumination control system concerning this Embodiment. It is a schematic block diagram which shows the flow of the communication signal in the illumination control system. It is a table | surface which shows the bit sequence contained in the return signal in the lighting control system, (a) shows the bit sequence which each lighting fixture transmits, (b) shows the example of the bit sequence which a controller receives. It is a flowchart for demonstrating operation | movement of a controller when a controller acquires a logical address in the same illumination control system. It is a flowchart for demonstrating operation | movement of the lighting fixture of the same illumination control system.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the lighting control system according to the present embodiment includes a plurality of lighting fixtures 2 (2a... 2n) to which individual logical addresses are assigned, and a controller 1 that controls the operation of each lighting fixture 2. Are connected via a communication line L.

  The controller 1 is a signal between the control unit 11 composed of a microcomputer that controls the overall operation of the controller 1, the storage unit 12 composed of, for example, a volatile SRAM, and each lighting fixture 2 via the communication line L. And a transmission / reception unit 13 that transmits and receives.

  The logical address assigned to each lighting fixture 2 by the control unit 11 is written in the storage unit 12, and the control unit 11 reads the logical address as necessary.

  The transmission / reception unit 13 modulates the signal from the control unit 11 and outputs it as a transmission signal to the communication line L, and demodulates the transmission signal input via the communication line L and outputs the demodulated signal to the control unit 11. Here, the transmission signal is an address request command for requesting each lighting device 2 to return a logical address, a response stop command for stopping a response to the address request command, a stop release command for responding to the address request command again, and each illumination. Various instructions such as a control instruction for turning on / off / changing the dimming level of the fixture 2 and the logical address of the target lighting fixture 2 are included.

  The control unit 11 transmits a transmission signal including various commands to the lighting fixture 2 to be controlled via the transmission / reception unit 13, thereby acquiring the logical address of the connected lighting fixture 2 and turning on / off the lighting fixture 2.・ Control the dimming level. In addition, the controller 1 includes an operation input unit (not shown) such as a remote controller and a remote control receiver, and in accordance with the operation input, a logical address assigned to each luminaire 2 to which the control unit 11 is connected. Start acquisition.

  The luminaire 2 includes a control unit 21 that includes a microcomputer that controls the overall operation of the luminaire 2, a storage unit 22 that includes a nonvolatile memory such as an EEPROM (Electrical Erasable Program ROM), and a communication line L. A transmission / reception unit 23 that transmits and receives signals to and from the controller 1, and a lighting circuit 24 that performs lighting output to a light source such as an LED.

  The storage unit 22 stores in advance the logical address of the luminaire, and the control unit 21 reads it out as necessary. This logical address is set to a value that does not overlap between the respective lighting fixtures 2a. In addition, in the storage unit 22, a stop flag for determining whether or not to send a return signal indicating its own logical address in response to an address request command from the controller 1 is stored by the control unit 21.

  The transmission / reception unit 23 determines whether the logical address included in the transmission signal received via the communication line L is for the logical address of the own device, and the logical address of the own device is the target. Then, various commands included in the transmission signal are output to the control unit 21.

  The control unit 21 controls the operation of the lighting fixture 2 in accordance with various commands from the controller 1 input via the transmission / reception unit 23. Specifically, as shown in the flowchart of FIG. 5, when the transmission / reception unit 23 receives a transmission signal (step S20) and inputs various commands included in the transmission signal to the control unit 21 (step S21), If this instruction is an address request instruction (right side of step S21), the value of the stop flag stored in the storage unit 22 is checked (step S22). If the stop flag is OFF (step S22 OFF), The logical address assigned to the machine is extracted from the storage unit 22 and a return signal is transmitted to the controller 1 via the transmission / reception unit 23 (step S23). If the stop flag is ON (step S22 is ON), the return signal is not transmitted (step S24), and the process for the transmission signal is ended (step S25). If the command included in the transmission signal is a response stop command (center of step S21), the control unit 21 rewrites the stop flag stored in the storage unit 22 to ON (step S26) and ends the processing (step S26). Step S25). If the command included in the transmission signal is a stop cancellation command (right side of step S21), the control unit 21 rewrites the stop flag stored in the storage unit 22 to OFF (step S26) and ends the processing (step S26). Step S25).

  Here, as an initial setting of the lighting fixture according to the present embodiment, a method in which the controller 1 acquires the logical address of each lighting fixture 2 will be described based on the flowchart of FIG. In the following description, the lighting devices 2a, 2b, 2c, and 2d are connected to the controller 1 via the communication line L. Each lighting device 2a, 2b, 2c, and 2d has a logical address “ The description will be made assuming that numerical values of “1”, “2”, “3”, and “4” are assigned.

  First, after constructing the controller 1 and each lighting fixture 2 (2a, 2b, 2c, 2d), the user uses a remote controller (not shown) or the like to start acquiring the logical address of each lighting fixture 2. A control signal for transmitting to the controller 1 is transmitted. The control unit 11 of the controller 1 transmits a transmission signal including a stop release command for all the lighting fixtures 2 in accordance with the above-described control signal (step S10) (step S11). In each luminaire 2 that has received the transmission signal including the stop cancellation command, the control unit 21 sets the stop flag of the storage unit 22 to OFF as described above.

  Next, the control unit 11 of the controller 1 transmits a transmission signal including an address request command to all the luminaires 2 (step S12). For example, after a standby time of about 1 second has elapsed (step S13), a return signal is transmitted. Is confirmed (step S14). If a return signal has been received before this waiting time has elapsed (Yes in step S14), the control unit 11 acquires a logical address from the return signal by a method described later (step S15), The acquired logical address is stored in the storage unit 12 (step S16), and a transmission signal including a stop command is transmitted to the lighting fixture 2 to which the logical address acquired in step S15 is assigned (step S17).

  Here, in this embodiment, the return signal of each lighting fixture 2 (2a, 2b, 2c, 2d) is a numerical value indicating the logical address of the own device from the lower bits as shown in FIG. For example, the lighting fixture 2d transmits, as a return signal, an 8-bit bit string in which D1 to D4 is 1, and D0 and D5 to D7 are 0. At this time, since the return signals transmitted by the respective lighting fixtures 2 are expected to be transmitted at substantially the same timing, the reception signals received by the controller 1 overlap the four return signals of the lighting fixtures 2a to 2d, There is a case where a return signal as shown in FIG. Since this return signal is the same as the bit string of the return signal transmitted by the lighting fixture 2d, and the 4 bits from the lower bits are 1 continuously, the control unit 11 has the lighting with the logical address “4”. It is detected that the fixture 2 is connected, and “4” is stored in the storage unit 22 in step S16, and for the lighting fixture 2 (2d) assigned “4” as the logical address in step S17. A transmission signal including a stop command is transmitted.

  Thereafter, the control unit 11 of the controller 1 transmits a transmission signal including an address request command to all the lighting fixtures 2 again (step S12). Here, since the target lighting fixture 2 (the lighting fixture 2d in the above case) that has transmitted the stop command in step S17 sets the stop flag of the storage unit 22 to ON as described above, it includes an address request command. Even if a transmission signal is received, a return signal is not transmitted. As a result, even when the return signals overlap, the controller 1 receives a logical address (for example, “3”) different from the previous one (steps S13 to S15), and stores the logical address in the storage unit 12. (Step S16), and a transmission signal including a stop command is transmitted (step S17).

  Thus, the controller 1 repeats the operations from step S12 to S17 until no return signal is received in step S14, so that the logical addresses of all connected lighting fixtures 2 are stored in the storage unit 12 of the controller 1. Remembered. At this time, since the stop flags of the storage units 22 of all the lighting fixtures 2 are set to the ON state, the lighting fixtures 2 can be controlled using the acquired logical address thereafter.

In this way, the user only has to operate only the controller 1 with the remote controller or the like, and the trouble of setting the logical address in the controller is reduced, and the return signal transmitted by the lighting fixture 2 is in a simple format. Since it is good, the setting of the logical address is completed in a short time.
The lighting fixture of this embodiment includes a plurality of lighting fixtures assigned with individual logical addresses, and a controller that controls a desired lighting fixture using the logical address assigned to each lighting fixture, and the controller includes: A storage unit for storing the logical address of the lighting fixture; and a transmission / reception unit for transmitting a transmission signal including a request signal for requesting a logical address to the lighting fixture and receiving a return signal transmitted from the lighting fixture; When each of the lighting fixtures receives the request signal, it converts its own logical address into a return signal composed of a bit string that can restore at least one logical address even if a plurality of return signals overlap. A return signal is transmitted. According to this configuration, in response to the request signal received by the lighting fixture, the controller erroneously transmits a return signal including a bit string that can restore at least one logical address even if a plurality of return signals are duplicated. The possibility of acquiring a logical address can be reduced. In addition, since the luminaire sequentially transmits the logical address as a return signal in response to a request signal from the controller, it is possible to reduce the labor of the installer and set the logical address in a short time.

DESCRIPTION OF SYMBOLS 1 Controller 11 Control part 12 Storage part 13 Transmission / reception part 2 Lighting fixture 21 Control part 22 Storage part 23 Transmission / reception part 24 Lighting circuit L Communication line

Claims (2)

And a controller for controlling the desired the luminaire using a plurality of luminaires separate logical address is assigned, the logical address assigned to each of the luminaire,
Wherein the controller transmits a storage unit that stores the logical address of the luminaire, the transmission signal including a request signal requesting the logical address to the luminaire, for receiving a return signal transmitted from the luminaire Have a transceiver
When each of the lighting fixtures receives the request signal, as the return signal, the number of bits based on the logical address assigned to the own device is continuously set, and a bit string set to ON from the lower bit to the upper bit is set. Send
The lighting control system , wherein the controller acquires the logical address based on the number of bits that are continuously ON in the received return signal . Wherein the controller, upon receiving the return signal, so that with respect to the luminaire in which the logical address obtained on the basis of the return signal is assigned, does not transmit the return signal even when receiving the request signal 2. The illumination control system according to claim 1, wherein a transmission signal including a return prohibiting instruction is transmitted .

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