JPH07193531A - Guiding light control system - Google Patents

Abstract

PURPOSE:To provide a guiding light control system where constitution is simple, reliability is high and usefulness is high by overlapping a guiding light control signal with an AC power line so as to transmit it. CONSTITUTION:A guiding light signal device 2 is provided with a control part 6 and a transmission part 7. The control part 6 incorporates CPU. It generates prescribed guiding light control signals in accordance with the contents of respective signals when a fire signal, a machine guard control signal and an external light signal are inputted, and outputs them to the transmission part 7. The transmission part 7 incorporates a high frequency generation part, a modulator and a filter. A high frequency is modulated by the guiding light control signal from the control part 6, a modulation signal generated by the result is filtered, is transmitted to the AC power line l and it is overlapped with 50/60Hz current. Plural guiding bodies connected to the power line of commercial power are controlled by the control signal of the high frequency overlapped with the AC current of the power line l. Thus, a signal line for controlling the operation of respective guiding lights becomes unnecessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide light control system.

[0002]

2. Description of the Related Art A guide light is a disaster prevention system for providing people with information about an evacuation route, direction, etc. by using various simple characters and drawings (for example, a picture of a person running) when a fire occurs. It is a luminaire, and it is a universal equipment among fire fighting equipment that is legally required to be installed in various places in public buildings so that it can be clearly seen from anywhere.

Usually, a plurality of guide lights are installed in a building, and in principle, the lights are turned on and off at all times.

Conventionally, in a guide light control system configured to intensively control the operation of a plurality of guide lights,
An AC power line for supplying AC power to the lamp of the guide light and a signal line for transmitting a control signal for controlling ON / OFF of the lamp are separately wired.

That is, as shown in FIG.
The lamp 22 is connected to an AC power line 24 via a contact 23a of a relay 23. That is, the lamp 22 is turned on / off by turning on / off the contact 23a.

Both ends of the winding of the electromagnet 23b of the relay 23 are connected to the AC power line 24 through the signal line 25 and the contact 27a of the relay 27 of the guide light signal device 26 in series, whereby the induction The lamp 22 of the lamp 21 is indirectly operated by the relay 27 of the guide light signal device 26.

That is, when the contact 27a of the relay 27 is closed, the contact 23a of the relay 23 is closed, and as a result, the lamp 22 is turned on, and when the contact 27a is opened, the lamp 22 is controlled to be turned off. It has become.

On the other hand, the winding of the electromagnet 27b of the relay 27 of the guide signal device 26 is connected to the switch 28 of the fire alarm receiver 28.
It is connected to the AC power supply line 31 through a series circuit of a and a switch 29a of the extinguishing controller 29. The switch 30a of the machine security control panel 30 is connected in parallel to this series circuit.

That is, both the switch 28a and the switch 29a are turned on, or the switch 30 is turned on.
When a is turned on, AC is applied to the electromagnet 27b of the relay 27.
A voltage is applied and contact 27a turns on, resulting in
The relay 23 of the guide light is turned on and the lamp 22 is turned on.

As for the power source of the lamp of the guide light, generally, the guide light has a normal power supply supplied from a normal AC power supply and an emergency power supply supplied from a built-in battery, and is caused by a power failure. When the supply of the regular power supply is stopped, it is automatically switched to the emergency power supply.

Regarding the control technique for controlling a plurality of electric devices connected to an AC power line, recently, in the field of control engineering such as home automation, the operation of electric devices distributed in each room is described. A power supply line carrier control system has been developed in which a control signal for control is superimposed on an AC power supply current and transmitted.

FIG. 4 shows the concept of the power line carrier control system. That is, the transmission device 33 installed in the centralized control room or the like is connected to one end of the AC power supply line 32 wired in the building.

In addition, an outlet 34 for the AC power supply line 32 is provided in each room of the building, and various electrical devices A, B, ... Are connected to each outlet 34 via a signal receiving device 35 having a plug attached. It is possible to connect.

The transmitter 33 extracts a high frequency generator 36, a modulator 37 for modulating a high frequency signal from the high frequency generator 36 with a control signal, and a harmonic component of an output signal from the modulator 37. And a filter 38 to be superimposed on the 50/60 Hz current.

The signal receiving device 35 receives the high frequency control signal transmitted by the AC power line 32 and 50/60 Hz.
It has a filter 39 for extracting a high frequency component from the current in which the current is superimposed, a demodulator 40 for demodulating a control signal from the output of the filter 39, and a switch 41 which is on / off controlled by the demodulated control signal. There is. The output of the switch 41 is output to the corresponding electric equipment A, B, ..., By which the electric equipment A, B.

Now, for example, when the control signal input to the modulator 37 in the transmitter 33 is turned on, the high frequency signal modulated by this control signal is superimposed on the 50/60 Hz current and transmitted by the AC power supply line 32. Then, each outlet 34 is reached.

The signal receiving device 35 connected to the outlet 34 decodes the control signal in the ON state, and turns ON the corresponding electric equipment.

[0018]

In the above conventional guide light control system, each guide light 21 and the guide light signal device 2 are provided.
For example, since the guide lights are arranged in series on the signal line 25 connecting the 6 and 6, there is a problem that a failure in each of the arranged guide lights affects other guide lights.

Further, since these signal lines 25 are thin and easily broken, there is a problem that if they are broken in an emergency, the entire guide light control system may become inoperable.

Further, since the conventional guide light is installed in a position where anyone can see it, it has a weak presence and people are ruthless. It was no problem.

In order to solve the above-mentioned problems of the conventional guide light control system, the present invention has a simple control wiring structure, high operation reliability, and high utility guide light control system. There is a problem to be solved in realizing.

[0022]

In order to solve the above problems, the guide light control system according to the present invention superimposes a plurality of guide lights connected to a power supply line of a commercial power supply on an AC current of the power supply line. It is configured to be controlled by the control signal.

Further, each of the guide lights comprises a fire sensor and a fire alarm means.

Further, each guide light is provided with means for preventing malfunction by comparing the content of the control signal with the content detected by the fire sensor.

The above-mentioned fire notification means is composed of information transmission means such as sound, odor, or characters and moving images.
It is controlled to display news, videos, etc. to make people aware of evacuation in an emergency, and display a video or still image showing the taxiway during a fire.

[0026]

With the above structure, the plurality of guide lights connected to the power supply line of the commercial power supply are controlled by the high-frequency control signal superimposed on the AC current of the power supply line. This eliminates the need for a signal line for controlling the operation of each guide light, which simplifies the system configuration and eliminates accidents due to disconnection of the signal line and improves reliability.

Further, each guide light is equipped with a fire sensor and a fire alarm means to detect a fire and transmit information, thereby positively and effectively utilizing the positional advantage of the guide light.

Further, the reliability of the system is further improved by providing each guide light with means for preventing malfunction by comparing the content of the control signal with the content of detection by the fire sensor.

The above-mentioned fire notification means has a function of transmitting information by sound, smell, characters and moving images. This is to alert people about disaster prevention by raising news or images during normal times or to raise awareness of disaster prevention. In case of a fire, the evacuation route is displayed and information on the fire is provided and evacuation guidance is provided by all means. By making the guide light multifunctional in this way, the usefulness of the guide light is improved.

[0030]

Embodiments of the guide light control system according to the present invention will be described below. FIG. 1 shows the basic configuration of a guide light control system using AC power line carrier according to the present invention.

An AC power line 1 is wired in each room in the building. In the central control room, a guide light signal device 2 is installed, which is connected to the AC power line 1.

A fire alarm receiver 3, a machine security control panel 4, and an external light sensor AS are connected to the guide light signal device 2.
A fire signal, a machine security control signal, and an external light signal are supplied to the guide light signal device 2, respectively.

The guide light signal device 2 includes a controller 6 and a transmitter 7.
And have. The control unit 6 has a built-in CPU, and when a fire signal, a machine security control signal, and an external light signal are input, a predetermined guide light control signal is created according to the content of each signal and output to the transmission unit 7. Have the function to

The transmitter 7 has a high frequency generator, a modulator and a filter built-in, modulates the high frequency by the guide light control signal from the controller 6, filters the resulting modulated signal, and then AC. Send to power line 1 for 50/6
It has a function of overlapping with 0 Hz current.

On the other hand, guide lights 8 are installed in various parts of the building. The guide light 8 is connected to the AC power supply line 1 via the signal receiving device 9.

The guide light 8 has a control unit mainly composed of a CPU, and the first function is to display an evacuation route when a fire occurs. , Has multiple functions such as transmission of various information in normal times.

The signal receiving device 9 has a built-in filter and demodulator, extracts a high frequency signal superimposed on the AC power supply line 1, demodulates a guide light control signal from this high frequency signal, and outputs it to the guide light. It has a function of outputting to 8.

The guide light control system operates as follows. In the guide light signal device 2, output signals from the fire alarm receiver 3, the machine security control panel 4, and the external light sensor AS are input to the control unit 6.

When a fire signal for informing a fire is input from the fire alarm receiver 3, the control unit 6 automatically turns on the guide light control signal. When there is no fire signal, the control unit 6 automatically turns on or off the guide light control signal according to the external light signal from the external light sensor AS.

The control unit 6 uses the program of the CPU to
It is possible to freely create from a simple format guide light control signal for uniformly turning on / off all guide lights to a complex guide light control signal such as a command format including an address and a designated operation of each guide light. You can do it.

The guide light control signal generated by the control unit 6 is sent to the transmission unit 7, where the high frequency signal generated by the high frequency generator is modulated. The modulation signal obtained as a result of the modulation is sent to the AC power supply line 1 and superposed with the 50/60 Hz current.

The superposed current of the 50/60 Hz current and the high frequency signal is transmitted by the AC power supply line 1 in the building and reaches each signal receiving device 9. Each of the signal receiving devices 9 extracts and demodulates the guide light control signal from the superimposed current, and outputs this to the guide light 8
Supply to.

The guide light 8 performs the following various information transmission operations by executing a program according to the contents of the input guide light control signal.

The guide light 8 will be described in detail below. The guide light 8 is formed in the shape of a thin square box like a conventional guide light, and one surface thereof is a display screen.

The guide light 8 is, as shown in FIG. 2, an emergency power source 10, a switch 11, a display 12, a control data register 13, a CPU 14, a video RAM 15, and
It is composed of a fire sensor 16, a ROM 17, a RAM 18, an alarm sound generator 19, and a fire odor generator 20.

The emergency power source 10 is composed of a battery and a charger and is constantly charged by the AC power source from the signal receiving device 9.

The switch 11 is controlled by the CPU 14 and has a function of switching the AC power source from the signal receiving device 9 to the power source from the emergency power source 10 in case of a power failure. The output from the switch 11 is supplied to all circuits of the guide light 8.

The display unit 12 is composed of a liquid crystal display panel and displays the video data prepared in the video RAM 15 in a normal TV.
It is designed to be displayed by technology.

The control data register 13 has a buffer function for temporarily storing the guide light control signal from the signal receiving device 9 and outputting it to the CPU 14.

The CPU 14 is connected to almost all circuit blocks of the guide light 8 and reads and executes a program stored in the ROM 17 to exchange data or signals with each circuit block. , Has a function of controlling the operation of the entire guide light 8.

The video RAM 15 is controlled by the CPU 14, prepares image data to be displayed on the display 12, and supplies it to the display 12. The CPU 14 determines an image to be displayed on the display device 12 according to the content of the guide light control signal, and creates necessary image data on the video RAM 15.

The fire sensor 16 has a function of detecting the occurrence of a fire and sending a fire detection signal to the CPU 14.

The ROM 17 stores various programs for controlling the operation of the guide light 8 and fixed display data.
The CPU 14 uses the ROM 1 depending on the content of the guide light control signal.
The necessary programs and fixed display data are read from 7 and executed.

The RAM 18 serves to provide a work area for the CPU 14 to execute the program.

The alarm sound generator 19 is a CPU when a fire occurs.
14 has a function of generating an alarm sound or a guidance sound to notify a fire.

The fire odor generator 20 is a CPU when a fire occurs.
It has a function of being controlled by No. 14 and generating a fire-like odor that gives a fire alarm.

The guide light 8 operates as follows. (1) Normal operation In normal operation, the guide light control signal indicates "normal", and in this case, the CPU 14 executes the normal operation program. As a result, various graphics and messages are drawn on the video RAM 15 using the fixed display data (characters, figures, etc.) stored in the ROM 17, and this is disaster prevention information by characters, moving images or still images on the screen of the display 12. Is displayed as.

As described above, by normally using the guide light for purposes other than the display of the evacuation route, the presence of the guide light is increased and it is useful for raising awareness of disaster prevention.

(2) Operation when a fire occurs When a fire occurs, the guide light control signal indicates "emergency", and in response thereto, the CPU 14 of the guide light 8 executes the emergency program.

That is, the image displayed on the display 12 is changed to an image showing an evacuation route such as a picture of a person running, the arrow indicating the evacuation direction flashes, and the alarm sound generator 1
A warning sound or a guidance sound is emitted from 9, and a fire odor of fire is emitted from the fire odor generator 20.

The CPU 14 compares the signal from the fire sensor 16 with the guide light control signal and, when they match, controls the fire to prevent a malfunction.

Further, when the CPU 14 recognizes the disconnection of the AC power line by the guide light control signal, the CPU 14 judges the fire situation by the output of the fire sensor 16 of its own and controls the display.

In the above description, the control of a certain guide light has been described. However, the guide light control system can be selected by selecting the format of the guide light control signal so that all guide light control systems and individual guide light control systems can be used. A method or a group control method can be considered.

In the individual guide light control system and the group control system, an address code is given to each guide light or a certain guide light group, and an address code is inserted in the guide light control signal. Then, the CPU 14 accepts only the guide light control signal that matches the address code of the self guide light or the self group.

By doing so, in the guide light control system applied to a large building, different guide light control signals can be sent to each guide light or each guide light group, and as a result, Fine evacuation guidance is possible.

[0066]

As described above, since the guide light control system according to the present invention superimposes and transmits the guide light control signal on the AC power line, it is not necessary to provide control wiring for each guide light, and , The system configuration is simple and the reliability is improved.

Further, since various kinds of information are displayed on the guide light by means of graphics and characters, the presence and usefulness of the guide light is enhanced, and it is possible to contribute to the improvement of disaster prevention awareness.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a guide light control system according to the present invention.

FIG. 2 is a block diagram showing the configuration of an embodiment of the guide light according to the present invention.

FIG. 3 is a block diagram for explaining a conventional technique.

FIG. 4 is a block diagram for explaining a power line carrier control system.

[Explanation of symbols]

 1 AC power line 2 Guide light signal device 3 Fire alarm receiver 4 Machine security control panel 5 External light sensor 6 Control unit 7 Transmitter 8 Guide light 9 Signal receiving device 10 Emergency power supply 11 Switch 12 Indicator 13 Control data register 14 CPU 15 Video RAM 16 Fire sensor 17 ROM 18 RAM 19 Alarm sound generator 20 Fire odor generator 21 Guide light 22 Lamp 23 Relay 24 AC power line 25 Signal line 26 Induction light signal device 27 Relay 28 Fire alarm receiver 29 Off ( Unmanned operator 30 Mechanical security control panel 31, 32 AC power line 33 Transmitter 34 Outlet 35 Signal receiver 36 High frequency generator 37 Modulator 38, 39 Filter 40 Demodulator 41 Switch A, B Electrical equipment

Claims (7)

[Claims] 1. A guide light control system for controlling a plurality of guide lights connected to a power supply line of a commercial power supply by a control signal superimposed on an AC current of the power supply line. 2. The guide light control system according to claim 1, wherein each of the guide lights includes a fire sensor and a fire alarm means. 3. The guide light comprises means for preventing malfunction by comparing the content of the control signal with the content detected by the fire sensor.
Alternatively, the guide light control system according to item 2. 4. The guide light control system according to claim 2, wherein the fire alarm means is a sound information transmission means. 5. The guide light control system according to claim 2, wherein the fire notification means is an odor information transmission means. 6. The guide light control system according to claim 2, wherein the fire notification means is an information transmission means using characters or moving images. 7. The fire alarm means is controlled so as to display news or a picture in order to make people aware of an evacuation in an emergency during normal times, and to display a moving image or a still image showing a taxiway during a fire. The guide light control system according to claim 6, wherein: