JPS60205991A - Illumination control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lighting control system that centrally controls a large number of lighting loads from a tomb control panel via a plurality of terminals, and particularly when controlling lighting loads using a random transmission method. The present invention relates to a system that allows easy confirmation of the contents of a transmission signal.

(Background of the Invention) Conventionally, lighting control systems have been known that centrally control one or more lighting loads connected to each of a plurality of terminals based on transmission signals from a main operation panel or the like. Recently, in such systems, transmission signals sent from the main operation panel to each terminal, or from each terminal to the main operation panel, are transmitted only when a request signal is generated from each terminal or the main operation panel. Is it the shadow of noise applied to the transmission line? 1
A so-called random transmission method is used in which the signal is removed.

However, in lighting control systems that use such a random transmission method, each transmission signal is transmitted singly, so it is difficult to know the contents and waveform of the transmission signal when an error occurs in the system or when performing maintenance work. The disadvantage was that it was extremely difficult to do so.

(Summary and Object of the Invention) The object of the present invention is to solve the problems of the conventional type described above.
In lighting control systems, based on the concept of repeatedly transmitting transmission signals by pressing a command switch installed on the main operation panel, etc. on the transmission line, etc., even in lighting control systems using random transmission method, transmission signals etc. The purpose of the present invention is to enable accurate confirmation of the contents and waveforms of the system, thereby streamlining system failure recovery work and maintenance work.

The present invention comprises a main operation panel and a plurality of terminals connected to the main operation panel via transmission close-up and each connected with one or more [4X light loads, Controls the operation of each lighting load by sending transmission signals in response to request signals generated from the machine. ((
In a controllable system, a command switch and a data generator are provided in the main operation panel or the equipment connected to the transmission line, and the data generator (d) responds to the request signal generated thereafter in response to pressing of the command switch. It is characterized by repeatedly sending out a corresponding transmission signal.

(Explanation of Examples) Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows the configuration of a lighting control system according to an embodiment of the present invention. The system in the figure consists of a main operation panel 11 and a plurality of ZM terminals 3 connected via a transmission line 2.
-1*3-L+.=+3-n, one or more lighting loads 4 connected to each terminal, a light sensor 5, and the like. The system shown in the figure also includes a main control panel 1
is provided with a data generation and display section 6 and a command switch 7, and the transmission line 2 is further provided with a data generation and display section 8, a command switch 9, a switch terminal 10, and a command switch 11 in the form of a wall switch or the like. is connected.

In the system shown in FIG. 1, the main operation panel 1 has a processor and a memory device (not shown), and controls lighting, turning off, and dimming of lighting loads connected to each terminal according to a program stored in the memory device. Do the following. Each terminal 3-1. '3-2. ....

3-n is a 101 path that receives the transmission signal from the main operation panel 1 via the transmission line 2, and each 11 path receives the transmission signal from the main operation panel 1 via the transmission line 2.
A circuit for controlling the bright load 4, that is, turning on, turning off, and dimming the light, is provided (+iii). Each 11 (1) The illuminance of the bright load is controlled by controlling the flow angle of the power supply using, for example, a thyristor. This is done by adjusting.

In the system shown in FIG. 1, the normal control operation as described above is such that, for example, in response to a request from the terminal device, the main operation panel l transmits a transmission signal as shown in FIG. 2 (a) IC.・This is done by sending 1. Transmission 1.1 in the same figure consists of the rotation Jυl isS, ψ:+5 address data A indicating the address of the terminal, etc., and the control content /J(sit+
It includes llti1 data C and return data D. Such transmission signals are transmitted through the transmission line 2 to each terminal 3-1, 3-2, . ..., 3-n, each of these terminals compares its own address with address data A in the transmission signal, and the terminal that matches the two accepts the transmission signal. For example, when the illuminance detected by the optical sensor 5 is within a predetermined range, the main operation panel 1 performs a predetermined control operation according to the output of the optical sensor 5. Since a transmission signal instructing to perform dimming control on the illumination intensity is transmitted, the illumination intensity is adjusted on the terminal side in accordance with this transmission signal. If the illuminance is brighter than the predetermined range, the lighting load is turned off, and if the illuminance is still lower than the predetermined range, control is performed to maintain the brightness of the lighting load at the highest level.

In the system as described above, assume that the command switch 7 on the main operation panel 1 side is pressed during maintenance work on the system, for example. As a result, the data generation and display section 6 in the main operation panel 1 is activated.

Then, for example, a request signal is transmitted from one of the terminals to the main operation panel 1, and the main operation panel 1 creates a predetermined transmission signal in response to this request signal and sends it to the transmission line 2. At this time, since the data generation and display section 6 is activated,
The transmission signal sent from the main operation panel 1 is repeatedly sent out as shown in FIG. 2(b). That is, when the data generation and display section 6 is activated by the command switch 7, it stores the transmission signal sent from the main operation panel 2 to the transmission line 2 in a predetermined buffer memory, and then outputs the same transmission signal from this buffer memory. It is sent repeatedly to the transmission line 2. Further, it is also possible to further provide a data input section in the data generation and display section 6, and send the contents of the buffer memory to the transmission line 2 after modifying or replacing them as necessary. In addition, the data generation and display section 6td is equipped with a display that encodes and displays the transmission signal.This display allows the content of the transmission signal to be directly checked, making system maintenance work more efficient. . Furthermore, since the transmission signal is repeatedly sent out by the data generation and display unit 6, the waveform of the transmission signal can be observed at any part of the main operation panel 1 or the transmission line 2 using, for example, an Onroscone 0. This makes it possible to improve the efficiency of system maintenance and adjustment work.

On the other hand, a data generation and display unit 8 connected to the transmission line 2
When the command switch 9 is pressed, a command signal is transmitted from the data generation and display section 8 to the main operation panel 1 via the transmission line 2, and the data generation and display section 6 in the main operation panel 1 is activated. As a result, the transmission signal and the like corresponding to the next generated request signal are repeatedly sent to the transmission line 2 in the same manner as described above.

The data generation and display unit 8 connected to the transmission line 2 is also provided with a display that encodes and displays the transmission signal, etc., so that the contents of the transmission signal, etc. can be directly checked.

A switch terminal 10 having a command switch 11 is further connected to the transmission line 2, and by pressing the command switch 11, for example, data generation and display section 6 in the main operation panel 1 can be activated.

In the above explanation, the case where the transmission signal is sent out from the main operation panel 1 has been mainly explained, but the present invention is not limited to this case. For example, the request signal is generated from the main operation panel 1 and transmitted to each terminal. It is clear that the present invention can also be applied to the case where a transmission signal is sent from a computer. In such a case, a circuit that repeatedly generates a transmission signal may be provided inside each terminal, or a circuit that repeatedly generates a transmission signal to be sent from each terminal may be provided to a data generation and display section connected to the transmission line 2. It is clear that you may do as you wish.

(Effects of the Invention) As described above, according to the present invention, a transmission signal is repeatedly sent out by pressing the command switch provided on the main operation panel or the transmission line, and the contents of the sent transmission signal can be freely controlled. Since the signal can be changed and sent out, it is possible to accurately check the content and waveform of the V transmission signal when lightning strikes or during maintenance work on the system. In addition, since the contents of the transmission signal can be freely changed and sent, it is possible to modify the data when a transmission error occurs, or to send system test data o, +, q9. The efficiency of cause analysis and maintenance adjustment work will be improved.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram showing the configuration of a lighting control system according to an embodiment of the present invention, and FIGS. 2 (,) and (b) are waveform diagrams showing the outline of transmission signals in the system of FIG. 1. be. 1: Main operation panel, 2: Transmission line, 3-1, -, 3-n:
Terminal, 4: Load, 5: Optical sensor, 6: Data generation and display unit, 7. Command switch, 8: data generation and display section, 9: command switch, lo: switch terminal, 1 command switch. ! 1! J Patent Applicant Toshiba Denkaku Corporation Agent Patent Attorney Tatsu Ito Yuyo JJ1 Patent Attorney Tetsuya Ito

Claims (1)

[Claims] It is equipped with a main operation panel and a plurality of terminals connected to the main operation panel via transmission lines and each connected with one or more lighting loads, and responds to a request signal generated from the main operation panel or the terminal. In a lighting control system that completely controls the operation of each lighting load by sending out transmission signals, a command switch and a data generation unit are provided on the main operation panel or equipment connected to the transmission line, and the data generation unit A lighting control system characterized in that a transmission signal corresponding to a request signal generated thereafter in response to pressing of a command switch is repeatedly sent out.