JP6056120B2 - Lighting control system - Google Patents

Description

  Embodiments described herein relate generally to a lighting control system.

  Conventionally, as an example of this lighting control system, a central control device is connected to a terminal device such as a dimming terminal device or a wall switch via a signal line so that bidirectional data communication is possible. A device that controls the light output of a lighting fixture by a dimming terminal according to an operation such as dimming is known (see, for example, Patent Document 1).

JP 2005-191692 A

  However, the functions of the central control device and the dimming terminal of this type of lighting control system differ depending on, for example, the large, medium, and small scales of the lighting control system. And since communication procedures differ for each different function, there is a problem that, for example, a central control system of a small-scale lighting control system and a large-scale terminal are not compatible. For this reason, in a lighting control system for small scales, it has been impossible to expand the functions by installing terminals used in large scale systems. In addition, it was impossible to install a small-sized terminal with simplified functions in a large- and medium-scale lighting control system.

  The problem to be solved by the present invention is to provide a versatile lighting control system in which at least one of a central control device and a terminal can cope with a difference in models with different communication procedures.

The lighting control system of the present embodiment communicates with a lighting fixture by a predetermined communication procedure, and connects to the terminal for remote monitoring or control of the lighting fixture, the lighting fixture and the terminal via a signal line. is, performs communication with the terminal device with a predetermined communication procedure by the control signal frame via the signal line, extension data handling unit of the communication procedure is different Ri control signal frame is reserved in advance for the different terminal unit And a central control unit having function switching means for switching to the same communication procedure as a terminal device having a different communication procedure by using a data portion of a region .

The system block diagram of the illumination control system which concerns on 1st Embodiment. The block diagram which shows the structure of the central control apparatus shown in FIG. The block diagram which shows the structure of the light control terminal shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent part in several drawing.

  1 is a system configuration diagram showing the overall configuration of the present embodiment, FIG. 2 is a block diagram showing the configuration of the central control device shown in FIG. 1, and FIG. 3 is a block diagram showing the configuration of the dimming terminal shown in FIG. is there.

(First embodiment)
As shown in FIG. 1, the lighting control system 1 includes a plurality of dimming terminals 4a and 4b serving as terminals that communicate with the central control device 2 through, for example, a two-wire signal line 3 in a predetermined communication procedure. , 4c,..., 4n and a wall switch 5 as an example of a monitoring terminal are connected so as to be capable of data bidirectional serial (serial) communication. The lighting devices 6a, 6b,..., 6n are connected to the dimming terminals 4a to 4n so that the light output can be controlled by turning on, turning off, dimming or the like. In FIG. 1, the lighting fixtures 6a to 6n are connected to the dimming terminals 4a to 4n on a one-to-one basis. The power supplies for the lighting fixtures 6a to 6n may be direct current (DC) or alternating current (AC), but are not shown in FIG. Moreover, you may provide the dimming terminals 4a-4n integrally, such as incorporating in each lighting fixture 6a-6n.

  The communication procedure refers to handling of an actual data portion other than the model-specific address in the control signal frame.

  The difference in communication procedure means that the data section involved in the communication procedure is handled differently. The data part usually has a fixed data length. For example, if the data length of the data portion is 8 bits, only 256 types of values can be expressed. When the function is expanded, 256 types may not be sufficient. As a method of extending beyond this, there is a method of using the data portion of the extension area reserved in advance. For example, if this extended area is 4 bits, it can be expanded to 16 modes × 256 types when combined with the data portion. In other words, when the communication procedure is different, in other words, when using a terminal with an extended function and a different handling of the data part after expansion, the communication procedure on the terminal that is the communication partner on the central control side, that is, the model If this is not known, the meanings of 256 types of data differ and an unexpected operation occurs.

  The light control terminals 4a to 4n connect the brightness sensors 7a, 7b, ..., 7n and the human sensors 8a, 8b, ..., 8n via the second signal line 11, respectively. The brightness sensors 7a to 7n and the human sensors 8a to 8n are respectively embedded in a ceiling or the like of a required illumination area, and the brightness (illuminance) of each illumination area is detected by the brightness sensors 7a to 7n. The presence / absence of a person in the area is detected by human sensors 8a to 8n. These detection signals are read into the dimming terminals 4a to 4n, and transmitted to the central controller 2 via the signal line 3 by the dimming terminals 4a to 4n.

  The lighting fixtures 6a to 6n are installed on each floor of various facilities such as an office building and each lighting area such as the area. These lighting fixtures 6a to 6n may use any of a fluorescent lamp, a light emitting diode (LED), an electroluminescence (EL), and the like as a light source, and includes a lighting device that turns on these light sources.

  The wall switch 5 is a control unit for individual control (not shown) for individually controlling the light output of the lighting fixtures 6a to 6n, or a control unit for group control (not shown) for group control for a plurality of units. When the control operation unit is operated, operation signals in a required format are output, and these operation signals (switch inputs) are read by the central controller 2 via the signal line 3. In addition, the operation part for individual control and the operation part for group control are based on the allocation information with the address of the lighting fixtures 6a-6n or the light control terminals 4a-4n with respect to the address of each operation part memorize | stored in the central controller 2. FIG. It is a distinction. That is, when one lighting device is assigned to one operation unit, it functions as an individual control operation unit, and when multiple lighting devices are assigned to one operation unit, a group control operation is performed. It functions as a part.

  As shown in FIG. 2, the central control device 2 includes a power supply unit 9a, a main control unit 9b, a main memory 9c, an AD memory 9d, and a transmission / reception unit 9e, and remotely controls a plurality of lighting fixtures 6a to 6n. Remotely monitor the operation state (spot, light extinction, dimming, etc.).

  The power supply unit 9a has, for example, a rectifier that receives a commercial AC power supply AC of 100V and rectifies it into a direct current (DC) of a required voltage (for example, 24V), and this DC is the main control unit 9b, the transmission / reception unit 9e, and the signal line 3 Power to

  The main control unit 9b is made of, for example, a microprocessor and includes a light control unit 2a, a function switching unit 2b, a main memory 9c, and an AD memory 9d. The AD memory 9d stores an individual address indicating the address of each dimming terminal 4a to 4n and a group address indicating a group when the dimming terminals 4a to 4n are grouped. In addition, addresses of various terminals connected to the signal line 3 such as the wall switch 5 are also stored.

  When the operation signal from the wall switch 5 is received by the transmission / reception unit 9e, the light control means 2a decodes the switch input operated by the operation signal, generates a control signal corresponding to the operation signal, and generates the control signal. The signal is transmitted by serial transmission in the signal line 3 by the transmission / reception unit 9e.

  The main memory 9c executes various functions for the central control device 2 to function as the central control device 2, such as the dimming means 2a of the central control device 2, in accordance with the dimming terminals having different communication procedures. A plurality of model-specific processing programs are stored.

  When the function switching means 2b detects that the communication procedure of the dimming terminals 4a to 4n does not match the communication procedure of the current central controller 2, the function switching means 2b is adapted to the communication procedure of the dimming terminals 4a to 4n. The model-specific processing program is read from the main memory 9c, and thereafter, the model-specific processing program is switched to be executed by the main control unit 9b.

  For example, the function switching means 2b reads out the communication procedure of the model of the dimming terminals 4a to 4n by polling control, or sends the model signal indicating the communication procedure from the dimming terminals 4a to 4n to the signal line 3 and the transmission / reception unit 9e. The communication procedure is read out by receiving the data via the control terminal, and it is determined whether or not the read communication procedure of the dimming terminals 4a to 4n is compatible with the communication procedure of the central controller 2 that is currently driven.

  If the communication procedure matches as a result of this determination, the central controller 2 is continuously driven. On the other hand, if the communication procedure of the central controller 2 and the dimming terminals 4a to 4n do not match, the model-specific processing program that conforms to the communication procedure of the dimming terminals 4a to 4n is read from the main memory 9c. The central controller 2 is driven by the model-specific processing program.

  The switching (selection) of the model-specific processing program can also be performed by a manual setting operation of the external setting device 9f. As the setting device 9f, for example, there is a dip switch or a personal computer (PC), and the model-specific processing program can be switched by these manual operations.

  As shown in FIG. 3, each of the dimming terminals 4a to 4n includes a transmission / reception unit 10a, a terminal control unit 10b, an AD memory 10c, and a control operation unit 10d.

  The transmission / reception unit 10a has a reception function of receiving a control signal transmitted from the transmission / reception unit 9e of the central control device 2 by a predetermined communication procedure and giving the control signal to the terminal control unit 10b. In addition, at least one brightness sensor 7 a to 7 n and human sensor 8 a to 8 n are connected to each transmission / reception unit 10 a via the second signal line 11. Each brightness sensor 7a-7n is embed | buried under the illumination area of each lighting fixture 6a-6n, for example in the ceiling etc., and detects the illumination intensity of each illumination area. This illuminance detection signal is given to the terminal control unit 10b via the transmission / reception unit 10a. The terminal control unit 10b transmits the illuminance detection signal to the central control device 2 through the signal line 3 by the transmission / reception unit 10a according to a predetermined communication procedure.

  When the central control device 2 receives the illuminance detection signals from the light control terminals 4a to 4n by the transmission / reception unit 9e, the light control means 2a of the main control unit 9b sets the preset illuminance target value by the transmission / reception unit 9e. The signal is transmitted to the signal line 3 by the communication procedure.

  The transmitter / receiver 10a records the response data after the execution of the control of the dimming terminals 4a to 4n in the response data including the signal return period which is the time slot of the control signal from the central controller 2. It has a function of causing the device 2 to return it.

  Each of the human sensors 8a, 8b,..., 8n is disposed on, for example, the ceiling of the lighting area of the lighting fixtures 6a to 6n having the same address, and detects the presence / absence of a person in this lighting area. The detection signal is given to the terminal control unit 10b via the transmission / reception unit 10a, and is transmitted to the central control device 2 via the signal line 3 by the transmission / reception unit 10a. When the central control device 2 determines that the detection signal is a signal when the presence of a person is detected, the central control device 2 transmits to the signal line 3 an ON signal for lighting the lighting fixtures 6a to 6n having the same address as the detection signal. On the other hand, when it is determined that the signal is a detection signal that does not detect the presence of a person, an OFF signal for turning off the lighting fixtures 6 a to 6 n is transmitted to the signal line 3.

  The terminal control unit 10b is constituted by a microprocessor, for example, and includes an AD memory 10c. The AD memory 10c stores individual addresses individually given to the dimming terminals 4a to 4n and group addresses when the dimming terminals 4a to 4n are grouped into a required number of groups. . The control operation unit 10d performs ON / OFF control and dimming control for turning on and off the lighting fixtures 6a to 6n.

  Next, the operation of the illumination control system 1 will be described.

  When an operation for controlling the lighting fixtures 6a to 6n is performed by the wall switch 5 shown in FIG. 1, the control contents (for example, lighting, A control signal of a predetermined format including light extinction, dimming, etc.) is transmitted to the central controller 2 via the signal line 3 by a predetermined communication procedure. When the central control device 2 receives the control signal from the wall switch 5, the central control device 2 transmits a control signal for controlling the lighting fixtures 6a to 6n corresponding to the address designated by the wall switch 5 by a predetermined communication procedure. At this time, when the individual addresses of the lighting fixtures 6a to 6n are set for the address of the wall switch 5, the operation of the wall switch 5 individually controls the lighting fixtures 6a to 6n. On the other hand, when a group address is set for the address of the wall switch 5, the operation of the wall switch 5 controls the lighting fixtures 6a to 6n in groups.

  And the detection signal in which presence or absence of the person was detected by the human sensitive sensors 8a-8n is transmitted to the central control apparatus 2 via the signal line 3 by the transmission / reception part 10a of the light control terminals 4a-4n.

  In the central control unit 2, the main control unit 9b determines whether the detection signals from the human sensors 8a to 8n detect the presence of a person or the absence of a person. When the presence is detected, an ON (lighting) signal for lighting the lighting fixtures 6a to 6n at the address designated by the wall switch 5 with a predetermined illuminance is turned off when the absence of a person is detected. ) A signal is transmitted to the signal line 3.

  Each light control terminal 4a-4n receives this ON or OFF signal by the transmission / reception part 10a. Then, the terminal control unit 10b reads out its own address from the AD memory 10c, determines whether or not the own address matches the address of the ON / OFF signal, and determines that these addresses match each other. The terminal control unit 10b of the address dimming terminals 4a to 4n operates the control operation unit 10d to turn on or turn off the lighting fixtures 6a to 6n.

  The detected illuminance values detected by the brightness sensors 7a to 7n are transmitted to the central control device 2 via the signal line 3 by the transmission / reception unit 10a of the dimming terminals 4a to 4n.

  In the central controller 2, the control signal including the illuminance target value preset by the dimming means 2a of the main control unit 9b is transmitted via the signal line 3 to the dimming terminals 4a to 4n having the address. Each light control terminal 4a-4n receives the control signal containing this illumination intensity target value by the transmission / reception part 10a. Then, when the terminal control unit 10b reads out its own address from the AD memory 10c, determines whether this own address matches the address of the received control signal, and determines that these addresses match, The terminal control unit 10b of the dimming terminals 4a to 4n at the address operates the control operation unit 10d according to the control signal.

  Thus, the dimming terminals 4a to 4n having the same address as the address of the control signal including the illuminance target value are dimmed so that the brightness of the lighting fixtures 6a to 6n becomes the illuminance target value.

  By the way, the scale of the system is changed by increasing or decreasing the number of connected brightness sensors 7a to 7n, human sensors 8a to 8n or lighting fixtures 6a to 6n connected to the dimming terminals 4a to 4n, respectively. When the model of the dimming terminals 4a to 4n is changed depending on the case, the model (communication procedure) change signal from the changed dimming terminals 4a to 4n is transmitted via the signal line 3 and the transmission / reception unit 9e. Is transmitted to the central controller 2. Alternatively, when the central control device 2 reads out the change in model (communication procedure) of the dimming terminals 4a to 4n by polling control, the dimming terminal 4a whose model has been changed by the function switching means 2b of the central control device 2 A model-specific processing program of the central control unit 2 that conforms to the communication procedures of ˜4n is selectively read from the main memory 9 and automatically switched. The switching of the model-specific processing program can also be performed by manual operation of a setting device 9f such as a DIP switch of the central control device 2 or a PC.

  The central controller 2 records a plurality of model-specific processing programs in the main memory 9c in advance according to the communication procedure of the models of the plurality of dimming terminals 4a to 4n, and can select them appropriately. It is possible to correspond to the communication procedure. For this reason, the versatility of the central controller 2 can be expanded.

  As a result, it is not necessary to change the model of the central control device 2 according to the model change of the dimming terminals 4a to 4n and connect to the signal line 3 one by one. In addition, the cost can be reduced.

  In the first embodiment, the function switching means 2b for adapting the communication procedure on the central control device 2 side is provided on the central control device 2 side for changing the model (communication procedure) of the dimming terminals 4a to 4n. However, the present invention is not limited to this. For example, the same effect can be obtained even when the monitoring terminal is a terminal that communicates in a predetermined communication procedure.

  In the second embodiment, function switching means 2b for adapting the functions of the dimming terminals 4a to 4n to the communication procedure of the central controller 2 may be provided on the dimming terminals 4a to 4n. . In other words, in the second embodiment, the dimming terminals 4a to 4n are provided with memories that store a plurality of model-specific processing programs for operating in accordance with the communication procedure of the central control device 2. Further, when the model of the central control device 2 is read, a model-specific processing program suitable for this model is selected from the memory, and thereafter, a model switching means for executing the model-specific processing program is provided in the terminal control unit 10b. . According to this embodiment, the versatility of each light control terminal device 4a-4n can be improved.

  Further, a setting device corresponding to the setting device 9f that performs function switching of the function switching means 2b may be provided. According to this, as in the first embodiment, manual operation of the setting device is performed. Can also switch the model-specific processing program, so that the certainty of the function switching can be improved.

  As mentioned above, although several embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of this invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the present invention. These embodiments and modifications thereof are included in the scope and gist of the present invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Lighting control system, 2 ... Central control apparatus, 2b ... Function switching means, 3 ... Signal line, 4a, 4b, ..., 4n ... Dimming terminal, 5 ... Wall switch, 6a, 6b, ..., 6n ... Lighting Apparatus, 7a, 7b, ..., 7n ... Brightness sensor, 8a, 8b, ..., 8n ... Human sensor.

Claims (4)

Lighting equipment;
A terminal that communicates in a predetermined communication procedure and performs remote monitoring or control of the luminaire;
Is connected through the luminaire and the terminal unit and the signal lines, performs communication with the terminal device with a predetermined communication procedure by the control signal frame via the signal line, the data of the control signal frame communication procedure depends A central control unit having function switching means for switching to the same communication procedure as that of a terminal device having a different communication procedure by using a data portion of an extension area reserved in advance for a terminal device having a different handling of the part ;
A lighting control system comprising: Lighting equipment;
A terminal that communicates in a predetermined communication procedure and performs remote monitoring or control of the luminaire;
A central control device that is connected to the lighting device and the terminal via a signal line , and communicates with the terminal in a predetermined communication procedure by a control signal frame via the signal line ;
The terminal unit has a function of switching to the same communication procedure with the central controller by using the data of the extension area data handling unit has been reserved in advance for the different central controller of a communication procedure different Ri control signal frames An illumination control system comprising switching means. The lighting control system according to claim 1, further comprising a switching operation unit that manually operates a switching operation of the function switching unit. The illumination control system according to claim 1, wherein the function switching unit switches the communication procedure when it is identified that the communication procedure is different.

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