JPH0330096A - Optical wireless fire alarm installation - Google Patents

Abstract

PURPOSE:To improve the reliability by converting all of signals sent from a fire detecting part and a mobile transmission part to optical signals to transmit them. CONSTITUTION:A controller 20 is arranged for one or plural wireless fire sensors 10. A test command or the like can be sent from a remote controller 30 to sensors 10 and the controller 20. Optical signals are used for transmission and reception among sensors 10 and controllers 20 and 30. Each sensor 10 monitors a fire at intervals of a prescribed time and detects the occurrence of a fire to send optical information to the corresponding controller 20. Then, the controller 20 displays fire information to raise an alarm and informs a fire receiver or a monitor panel of it through a telephone line or the like. Conse quently, the noise resistance and the reliability of information transmission are improved because of optical wireless transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to fire alarm equipment, and particularly to optical wireless fire alarm equipment.

[Prior art and its problems] Usually, signal transmission of fire alarm equipment is performed by wired system. However, if the layout of a room is frequently changed, there is a problem in that the wired method requires a lot of effort and cannot be easily handled. In addition, in order to flexibly respond to the installation environment and place the fire detection sensor in the optimal position after considering the air conditioning ventilation flow and how the room is used, it is possible to place the fire detection sensor in any position regardless of wiring. A cordless transmission system that can be attached to a computer is desired.

From a cordless perspective, radio waves are used as a cordless method, but it is less susceptible to noise generated by OA equipment (electronic equipment) often found in offices these days, malfunctions caused by illegal radio, and transmission failures. There were no appropriate countermeasures, and it was difficult to put it into practical use for disaster prevention.

[A Thousand Steps to Solve the Problems] The optical transmission system according to the present invention has high reliability against noise and transmission failure, and can also be used to prevent poor visibility due to smoke generated during a fire. To provide a fire alarm system that is cordless and can be installed more freely.

Specifically, according to the present invention, there is provided a fire phenomenon detecting means, a light receiving means for a detecting section for receiving an optical signal, and a light receiving means for a detecting section that receives a spatially transmitted optical signal of a test request. testing means for testing the fire phenomenon detection means in order to obtain test result information; a light transmitting means for the detection unit;
a fire detection unit having: a means for generating request contents including the test request; and a destination means for a mobile transmitting unit for converting the request contents generated by the generating means into an optical signal and transmitting the same through space. a mobile transmitting section, a light receiving means for a receiving section that receives the optical signal of the information signal spatially transmitted and the optical signal of the request content, and the light receiving means for the receiving section receives the optical signal of the information signal. a receiving section comprising: a discriminating means that sometimes performs discriminating based on the information signal; and a responding means that responds to the request content when the receiving section light receiving means receives the optical signal with the request content. A fire alarm system is provided which is characterized by the following.

[Function] Information signals sent from the fire detection unit and request signals sent from the mobile transmitter are all converted into optical signals and transmitted cordless, resulting in high noise resistance and high reliability against transmission failures. In addition to being cordless, the degree of freedom in installation is greatly expanded, and since the degree of freedom in installation is wide, it is possible to install it in such a way as to avoid as much as possible the influence of deterioration of visibility due to smoke emitted in the event of a fire.

For composite transmission fire alarm equipment that uses a telephone line between a repeater and a fire receiver to send and receive signals using a telephone transmission device, by connecting the transmission terminal device to the telephone line of the nearest telephone, Wiring work can be largely omitted, and fire signals can be easily transmitted even to remote locations using the wide-area connection provided by telephones.

[Example 1] Fig. 1 is a diagram schematically showing the configuration of a wireless fire alarm system of the present invention. In the figure, 10 detects fire based on heat, smoke, etc. This is a wireless fire detector that converts the signal into a signal and transmits information wirelessly, and the detector itself in this embodiment is a photoelectric smoke detector of the type that detects the presence of smoke using the scattered light of smoke. 20 receives fire signals etc. from the wireless fire detector 10, makes various judgments, displays the 't'lJ disconnection results, etc., and also transmits the received contents and judgment results etc. over the telephone as necessary. A controller 30 that notifies or reports to a monitoring panel by telephone transmission via a transmission terminal and a telephone line such as an extension line, or notifies a fire receiver, etc. at a disaster prevention center by wire or wirelessly,
A portable remote controller that can send various commands such as test commands to the sensor 10 and controller 20.
It is a controller.

In FIG. 1, generally one area, e.g. one chamber,
One or more sensors 10 may be arranged, and only one controller 20 may be arranged in one area so that it can receive optical signals from one or more sensors 10. and one controller 20 for each sensor.
may be provided. Therefore, when only one controller I/roller 20 is provided, the light transmitting section, that is, the light emitting section of one or two or more sensors 10 and the light receiving section of one controller 20 are connected to the controller 2o. If the controller 2o is oriented such that it can receive optical signals from one or more sensors 10, and one controller 2o is provided for each sensor 10, the controller 2o oriented so that it can only receive optical signals from the sensor. As a result, when the wireless sensor 810, which monitors fires at predetermined time intervals (every 3.5 seconds in this embodiment), detects the occurrence of a fire, the optical information about the occurrence of the fire The controller 20 displays the information, issues an alarm, and, if necessary, notifies a fire receiver (not shown) or sends it to a monitoring panel by telephone or the like via a telephone transmission terminal. It is possible to notify the

For this purpose, the controller 20 has an optical transmitting/receiving section 22 attached to its lower part for transmitting and receiving light from the wireless sensor 10 or the remote controller roller 30, as shown. Two indicator lights L2
1 to L29, power switch SW 2 1, transfer stop switch SW 2 2, and N product release switch S
W 2 3 is provided.

Indicator light L2. ~L2g is turned on according to optical information sent from the wireless sensor 1o. When the fire indicator light L21 lights up, it means that the optical information sent from the wireless sensing HIO indicates that a fire has occurred, and when the storage indicator light L22 lights up, the storage is in progress to monitor the occurrence of a fire. When the test indicator light L23 lights up, it shows that the test @ result of the wireless sensor 10 was good, and when the light path interruption indicator light L2 lights up, the wireless sensor 10 and the controller 2o When the battery replacement indicator light L2S lights up, it indicates that the battery of the wireless sensor 1o has reached the end of its life, and when the sensor abnormality indicator light L26 lights up, it indicates that the light path between the This indicates that some kind of abnormality has occurred in the sensor, such as the wireless sensor 1o falling off.

When the power switch SW21 is pressed, the power indicator light L2t lights up and the controller 2o becomes ready for operation.

Transfer/stop switch SW2. If the wireless detector 1o receives a fire signal, the controller 2o transfers the fire signal to a monitoring board or fire receiver (not shown), etc., and then presses the button. When this occurs, the alarm shift stop indicator light L2+1 lights up, and the sending of the fire signal from the controller 2o, that is, the alarm shifting is stopped.

When the M storage release switch SW2 is pressed, the storage release indicator light L2 lights up and the storage for fire monitoring is released. No action is taken. If the storage operation is not performed, the controller 20 (when it receives a signal indicating fire information from the wireless sensor 0) determines that a fire has occurred and turns on the fire indicator light L2.
Turn on 1. When the NM release switch SW23 is not pressed, the operation known as the so-called accumulation operation for fire monitoring is stopped, and when the fire information from the wireless detector 10 is first received, the accumulation operation is stopped. If the middle indicator L2■ lights up and then fire information is received from the wireless detector 10 a predetermined number of times or for a predetermined period of time, it is determined that a fire has occurred, and a fire is detected at that point. The indicator light L21 also lights up.

The wireless sensor 10 includes a conventional sensor section 12 that detects smoke, and a sensor section 12 that is removably attached to the sensor section 12, and a sensor section that converts a detection signal received from the sensor section 12 into an optical signal and sends it out. In contrast to the sensor adapter, that is, the sensor transmitter/receiver 14, the sensor transmitter/receiver 14 is provided with an optical transmitter/receiver 16 for transmitting and receiving optical signals with the controller 20 or the remote controller 30. The sensor adapter, that is, the sensor transmitting/receiving section 14 is installed on the ceiling, but the structure is such that the installation can be changed as necessary.

In this embodiment, the wireless detector 10 is constructed by attaching a normal fire detector main body (thermal type, ion type, photoelectric type, etc.) to the transmitting/receiving part in a detachable manner. It is also possible to configure a wireless sensor by integrating the sensor and the transmitter/receiver.

Furthermore, since the wireless sensor 10 is wireless, it has a built-in battery as a power source for the wireless sensor itself. Therefore, the circuit of the wireless sensor 10 is designed to extend the life of the battery, as described below. Many efforts have been made.

The remote control 30 is provided with an optical transmitter/receiver 32 for transmitting and receiving optical signals with the controller 20 or the wireless sensor 1o.
0 switches Sw,. ~SW,s and two indicator lights Lffl and I-i2 are provided.

Switch SW,. is a sensor test switch which is operated by directing the remote controller 30 toward the sensor 10 so as to send out a sensor test optical signal to the sensor 10 when performing a degree test of the sensor 10. Inspection switch SW
31 is also for testing the sensor 10, but in the case of this inspection switch SW3, the sensor is tested via the controller 20. That is, the inspection switch SW, is operated by pointing the remote controller 30 toward the controller 20 so as to send an inspection optical signal to the controller 20, and the controller 20, which has received the inspection optical signal, transmits an inspection optical signal to the controller 20. A sensor test optical signal is sent to 10.

In this specification, the term "test signal" hereinafter refers to a signal for testing the sensor sent from the controller 20 or the remote controller 30 to the sensor 10; The term "inspection signal" refers to a signal sent from the remote controller 30 to the controller 20 for testing the sensor.

Switch SW*2 is a buzzer stop switch,
The switch SW,3 is a transmission test switch operated during a transmission test, and the switch SW. 4 is a switch called a command open switch, and switch S
W,5~SW,. is operated before operating the switches SW35 to SW, . This is because the operations of switches SW, . . . -SW 3 a have important meanings, so the command open switch SW 3 . to prevent erroneous operation.

The switch SW 3 S is a signal transfer switch that is operated when the controller 20 transfers information to a monitoring panel or fire receiver (not shown), that is, transfers information. The switch SW, 7 is an accumulation switch for causing the controller 20 to perform an accumulation operation, the switch SW, , is an accumulation release switch, and the switches SW 1 to 9 are recovery switches. be.

Wireless sensor 10 and controller 2 shown in FIG.
0, and the internal circuits of the remote controller 1 and roller 30,
These are shown in FIGS. 2, 3 and 4, respectively.

In the circuit diagram of the wireless sensor 10 shown in FIG. 2, the parts other than the fire detector 12 are provided in the sensor adapter, that is, the sensor transmitter/receiver part 4, the MPU 1 is a microprocessor, and the ROM II is a program. RAM II is a storage area for working; 101 is a light receiving circuit that takes in a received light signal via the optical receiving unit in the optical transmitting/receiving unit 16, that is, the photodiode PDIO; 102 is a light transmitting circuit in the optical transmitting/receiving unit l6. In other words, it is a light emission control circuit that controls the light emission of a signal transmitted through the light emitting diode LED 10. In this embodiment, the light transmission signal uses a 38KIIz carrier wave and is pulse-modulated and coded fire information etc. The signal is repeatedly transmitted two to three times using near-infrared light of around 940 nm.

103 is a recovery circuit for restoring the fire detector 12 once activated; 104 is a fire alarm detection circuit that detects when the fire detector 12 is activated; Detection for detecting when the device falls off from the adapter 14: l'? j If! A drop detection circuit 106 is a test circuit for testing the fire detector 12; 107 is a test circuit for periodically emitting light from the light emitting unit LEDIO in order to detect interruption of the optical path as a transmission path, etc.; This is a first timer circuit that sets a time interval of 1. The first time interval can be set to any appropriate time interval from about 30 seconds to 30 minutes, but in this embodiment it is set to 8 minutes.

108 is a test indicator light circuit that controls the light emission of the test indicator light L1 when a sensor test is performed; 109 is a battery voltage monitoring circuit that monitors the built-in power supply, that is, the battery voltage; 110 is a circuit for performing storage operation; The fire detector 12, which monitors fires every 3.5 seconds, is activated or set when it first detects a fire, and a second time interval slightly larger than 3.5 seconds (this example (Let's say it's 4 seconds)
This is a second timer circuit that times out when it counts . The second timer circuit 110 is connected to the fire detector 12
is reset every time it detects a fire every 3.5 seconds and starts counting 4 seconds from the beginning, but if the fire detector 12 no longer detects a fire, the time will expire after 4 seconds.
This lets you know that the fire is no longer present. 111 is an installation test setting circuit that emits or receives an optical signal for the installation test from the optical transmitting/receiving unit 16 based on the operation signal of the installation test @ setting switch S W + operated when installing the wireless sensor 810; IF101 to IFIII are interfaces.

In the circuit diagram of the controller 20 in FIG.
is a microprocessor, ROM2 1 is a storage area for programs, and RAM21
is a storage area for work; 201 is a light emission control circuit that controls the light emission of an optical signal transmitted from the light emitting diode LED 20 in the optical transmitter and receiver 22; Signal receiving section, i.e. photodiode P
203 is a light receiving circuit that controls the light reception of the optical signal received by D20; 203 is a burst light emitting circuit that also controls the light emission of the burst I light signal emitted from the light emitting diode LED 21 in the optical transmitter/receiver 22; A first programmed timer, 205, set to a time interval of, for example, 1 minute, for performing MWt operations in conjunction with the second timer circuit 110 of the wireless sensor 10 after a fire is sensed. A second programmed timer, 206, set to a time interval of e.g. 2074, a ringing circuit that makes the buzzer B sound; 208, an f-multiple alarm circuit that sends a fire peak signal, etc., to a fire receiver, a telephone transmission terminal, etc.; , 209 is a data output circuit for outputting data to the fire receiver, telephone transmission terminal, etc.; 210 is a data human power circuit for inputting data from the fire receiver, telephone transmission terminal, etc.; IP201 to 209; I
P210 is an interface.

In the circuit diagram of the 4th I7I remote 1 controller 30, MPU3 is a microprocessor, ROM31 is a storage area for programs, and RAM31
is a storage area for work; 301 is a transmission light emission control circuit that controls the light emission of an optical signal transmitted from the light-emitting diode LED 30; 302; 303 is a timer circuit used to control the lighting time of indicator lamps L31 and L, 2; 304 is A switch input circuit for controlling the input of the switch contacts of the switches SW, . to SW 3 q, 305
is a lighting circuit that controls the lighting of the indicator lights Ljl and L32 and the lighting time of these indicator lights using a timer i\8303; IP301 to IP'305 are interfaces.

In the above-mentioned precepts, first, the signal transmission attack will be explained. As will be explained below, in this actual example, the signals exchanged between the wireless sensor {0, the controller 20, and the remote controller 30 are sent from the wireless sensor 1o to the controller 2o. , fire information, inspection completion information, wireless sensor abnormality information (sensor dropout information, voltage drop information), normal information, installation test information, and remote control roller 30.
The command information, that is, the request information, sent from the controller 20 includes a transfer command, a transfer stop command, an accumulation command, an M product release command, an inspection command, a buzzer stop command, a transmission test command, and a recovery command. Remote 1...Wireless sensor 1 while controller 30
There are test commands as command information, that is, request information sent to 0, and signals in (5) of (5), of which the inspection completion signal can also be received by the remote controller 30, and
When the controller 20 receives an inspection command from the remote controller 1 to the roller 30, the test command is also transmitted from the controller 2o to the wireless sensor 10 as a burst signal.
Sent to .

The transmission directions of these 15 signals are summarized in the table below.

Wireless control remote (1) Fire information ◎→→→→◎ <3) Abnormal information (4) Voltage information (5) Normal information ◎→→→→◎ ◎→−→→→◎ ◎→→→→◎ (7 ↫ Transfer command◎←←←←◎ H9) Accumulation command◎←←←←1◎ (12) Inspection command◎1←←←◎ (+I-st signal) ↑ ◎←←←←←◎ Command ( 15) Restoration command ◎←←1←←◎ These information of 15 can be identified by transmitting it in the form of a 4-bit digital signal. However, if one controller 20 receives information from two or more wireless sensors IO,
Address information may be added to the information signal so that the controller 20 can know from which sensing band t the information has been received. When adding address information, each information signal can be, for example, 8-bit information consisting of 4 bits of address information and 4 bits of information content.

Since the wireless sensor 10 operates using the built-in battery as a power source as described above, it is necessary to keep the current consumption as low as possible. Therefore, the light receiving circuit 101 (including a preamplifier and signal identification section) that receives test requests or test commands from the remote controller 1-roller 30 or the controller 20 cannot be kept in operation at all times. For this reason, the following method is used to keep power consumption low and to be able to receive test requests at all times.

The remote controller 30 on the sending side transmits strong time-series pulses to the remote controller 1...controller 30 +Itll.
The light-receiving section on the 7-sensor side, which is transmitted while the test request switch is turned down, receives pulsed light with a large-area light-receiving element via a filter and a condensing lens, and directly drives the comparator by the activation force of the element itself.

Upon reception of light above a certain level, the comparator activates the reception determination circuit, determines the pulse sequence to 1'11, and starts self-inspection or self-test if it is a test command.

With this method, the preamplifier section of the light receiving section can be omitted, reducing power consumption and simplifying the receiving circuit.
The rank can be kept low.

Depending on the amount of light (infrared light), the receiving unit activates the reception judgment circuit even if it receives light from a light source other than the remote controller 1-controller 30, but in the case of a signal from the remote controller 30, it is a predetermined pulsed light. , can be identified relatively easily.

Hereinafter, the operations in FIGS. 2 to 4 will be explained according to the flowcharts in FIGS. 5A and 5B, FIG. 6, FIGS. 7A to 7c, and FIGS. 8A and 8B. As a prerequisite, it is assumed that neither the accumulation release switch SW2 of the controller 20 nor the accumulation release switch SW:l8 of the remote controller 30 is operated, and the system performs a fire detection operation using the N product type.
Neither the 8-report stop switch SW 2 2 of the controller 20 nor the transfer stop switch SW 3 6 of the remote controller/roller 30 is operated, and the system can transfer the message to the fire receiver or telephone transmission terminal. The explanation will proceed assuming that it is in a state.

5A and 5B are flowcharts for explaining the operation of the wireless sensor 10, and
A flowchart is constructed by connecting 1 and V2 in FIG. 5B, respectively.

First, initial settings are performed (step 502). The tomb,
An interrupt standby state is entered (step 504).

If there is an interrupt input (step 506), determine if it is a fire interrupt (step 508). Is it a dropped interrupt (step 530)?
, voltage drop interrupt step 534), first timer interrupt step 538), light reception interrupt (step 542)
, the second timer interrupt (step 550), or the installation test interrupt (step 554), and after the corresponding interrupt contents are processed, the process returns to the interrupt standby state.

6 and 7A to 7C are flowcharts for explaining the operations of the controller 20 to the roller 20, and FIGS. Figure 7C connects ■1 and ■2 in Figure 7A to ■1 and ■2 in Figure 7B, respectively, and connects ■, and ■ in Figure 7B to ■ and ■4 in Figure 7c, respectively. A single flowchart is constructed by connecting to the .

In FIG. 6, initial settings are first performed (step 60).
2) After that, whether there is a light reception signal or not (step 60
4), whether there was a first program timer cut (step 606), and whether there was a second program timer interrupt (step 616).

If there is a light reception signal, the light reception signal is received at step 604 (Y), that is, the photodiode PD20 receives the light reception signal,
These are the light receiving circuit 202 and the interface IF 202.
When it is determined that it has been contained through
Received signal processing (step 700) is performed, which is shown in more detail in FIG. 7C.

Step 7 of light reception signal processing in Figures 7A to 7C
00), the light reception signal is sent as a fire signal in step 702.
), Abnormal signal (Step 724L: Write voltage drop signal Step 730), Normal signal (Step 734), Inspection completion signal (Step 740), Inspection signal (Step 752), Transmit test signal (Step 762), Recovery signal (Step 766). Transfer signal? (Step 7 7
4 >. Write a transfer stop signal step 780), write an accumulation signal step 784), or write an accumulation release signal (step 7)
88), step 792L is determined to generate a buzzer stop signal.

8A and 8B show the remote controller 30
8A is a flowchart for explaining the operation of
By connecting ■1 and ■2 in the figure to ■1 and ■2 in FIG. 8B, one flowchart 1.t3j is formed.

After the initial settings are first performed (step 802). The system enters an interrupt standby state (step 804). When an interrupt occurs (step 806L), it is determined whether it is a light reception interrupt (step 808).

The main role of the remote controller roller 30 is to send request information for each unit to the wireless sensor 10 or the controller 20. The inspection completion signal from the controller 30 can also be received by the remote control 1-controller 30.

Therefore, if it is determined that the occurrence of the interrupt is due to a light reception interrupt (Y in step 808) and that it is an inspection completion signal (Y in step 810). By lighting the inspection completion indicator light L: 12 for a predetermined period of time (steps 812, 814, 816L), the operator is informed that the wireless sensor 10 is normal. Thereafter, the process returns to the interrupt standby state (step 870).

If the occurrence of the interrupt is not due to a light reception interrupt (N in step 808), the switches SW30 to SW* are used to send the request information from the remote controller 30.
This is due to the manipulation of one of s, so
Next, it is determined which switch has been operated to cause an interrupt.

Here, the switches SW:+s to SW3a become effective only when operated while the timer circuit 303 is operating, and the timer circuit 303 is a command oven switch SW3a. It is activated by the operation of 3 and 4 and is automatically cleared after a predetermined period of time has elapsed. That is, the transfer switch S W * s, the transfer stop switch S W 3 G, the M product switch S W * t
, and the N product release switch SW Ja,
Since this operation will change the fire monitoring system, before operating these switches, first set the command open switch to prevent such system changes from being made inadvertently. SW
3. In addition, after operating the switch SW 3 4, the operation is made valid only for a predetermined period of time to ensure reliability of the operation. This is what I did.

Therefore, the timer circuit 303 is not operating when the first interrupt occurs (N at step 818). switch SW,
o~S W ) 4 and SW3. It is determined only whether the interrupt has occurred due to an operation.

Test switch SW,O (step 840). Either the inspection switch SW 2 1 (step 844), the buzzer stop switch SW 3 (step 848), the transmission test switch SW 3 (step 852), or the recovery switch SW 3 s (step 856) is operated. If an interrupt occurs due to
signal or transmission test signal) is the interface I F3
By setting 0 to 1, the transmission light emission control circuit 30
1 from the light emitting diode LED 30 (steps 842, 846, 850 or 854L, then
A transmission confirmation indicator L for informing the operator that the requested information has indeed been sent from the remote controller 30
31 lights up for a second predetermined time (steps 860, 8
62, 864).

If the interrupt is caused by the operation of the command open switch SW34 (Y in step 866)
．． The timer circuit 303 is turned on or operated (step 868), and while the timer circuit 303 is operating, an interrupt occurs again due to a switch operation.Step 80
8 N). This time the timer is running (step 8)
18 Y), switch SW:l S~SW *
It is determined only whether g has been operated.

If the interrupt occurs due to the operation of the transfer switch SW 3 5, the transfer signal (Y) in step 820 is cut (step 822), and if the interruption occurs due to the operation of the transfer stop switch SW 3 6. (Y in step 824) The transfer stop signal is set (step 826L storage switch SW 3)
Step 828 if an interrupt occurs due to the operation in step 7.
If the interrupt occurs due to the operation of the accumulation release switch SW3g, the accumulation release signal (Y) of step 832 is generated (step 830).
34) are set to the interface I F301, and are sent out from the light emitting diode 1ζLIED30 via the transmission light emission control circuit 301, and then the timer circuit 303 is cleared (step 838L).
The transmission confirmation indicator light L3 lights up for a second predetermined period of time (steps 860, 862, 864).

The operations of the wireless sensor 10, controller 20, and remote controller 30 when some kind of interrupt occurs while they are waiting for Z' retry will be described below.

Promiscuous X-Experience First, the operation of the installation test will be explained.

When first installing the system, install wireless sensor 1.
In order to artificially adjust the light reception sensitivity of the optical signal between the wireless sensor 10 and the controller 20, the installation test setting switch SW1 of the wireless sensor 10 shown in FIG. 2 is manually operated. The switch operation signal is received by the installation test setting circuit 111 into the microprocessor MPU I side as an installation test setting signal via the interface F111 (
Y) in step 554, which causes the interface I
By setting the installation test signal to the light emission control circuit 102 via F102, the light emitting diode LED 1 0
A predetermined light output is emitted from (step 556). It is possible to artificially adjust the facing relationship between the wireless sensor 10 and the controller 20 so that this light output is optimally received by the controllers 1 and 20. Light receiving sensitivity adjustment is performed between the wireless sensor 10 and the wireless sensor 10 . When such adjustment is completed, the installation test setting switch SWl is manually opened, and when it is detected that the switch SW1 is opened (step 5).
58 Y), light emission control circuit 102 <interface I
F102) installation test@signal is cleared (step 5)
60) After the first timer circuit 107 is reset (step 520) for reasons to be described later, the process returns to the interrupt standby state (step 522). Scarcity! In this embodiment, we will explain the operation when the system is operated in an accumulation manner and the fire information received by the controller 20 is transferred to a fire receiver, telephone transmission terminal, etc. (not shown). ing. In other words, in order to set such an operating state, it is necessary to use remote control during the initial setup of the system.
・・Turn the controllers 1 to 3o toward the controller 20, and press the M Jiff switch SW, and the transfer switch SW.
．． 5 are respectively command open switches SW. are operated separately after the operation of Command open switch SW, . By operating the accumulation switch SW17 after the operation of , an accumulation signal is transmitted from the remote controller roller 3o (step 83o), and when it is received by the controller 20, the accumulation signal is sent to C (step 78).
4 Y), the accumulation flag is set in the controller 20 (step 7 8 6 >. The remote controller 30 indicates that the signal has been received and the accumulation flag has been set).
The 11,1 4-way 207 is activated briefly (step 778) to notify the operator of the system (step 778), thereby setting the system to perform cumulative fire monitoring.

By operating the transfer switch SW3S after operating the command open switches SW and 4, a release signal is transmitted from the controller 30 to the remote control 1, and the signal is received by the controller 20 in step 822L. If (Y in step 774), con 1- r cola 2
0, the f multi-report prohibition tl- release command is output to the multi-report circuit 208 (step 776L). This sets the system to a ship-report enabled state. Thereafter, the 110 motion circuit 207 is operated for a short time ( step 778).

43. When operating the system in a non-N product mode or in a transmission stopped state, the accumulation release switch SW3. and transfer stop switch SW 3
s are command oven switches SW, . The controller 20 receives the N product release signal or transfer stop signal transmitted from the remote controller 30 (Y at step 788 or Y at step 780), and clears the accumulation flag. step 790), or transfer circuit 208
2. Outputs a transfer prohibition command to (step 7.82).
Thereafter, the ringing circuit 207 is similarly operated for a short time (step 778).

Although we have described the case where the system settings are performed using the remote control 1-controller 30, the system settings are also performed using the accumulation release switch SW2 of the controller 20 shown in FIG.
This can also be done by operating the signal transfer stop switch SW22.

If you wish to test the operation of the wireless sensor 10, such as after completing the light receiving sensitivity adjustment at the time of installation or during periodic inspections,
Remote 1 to controller 30 to wireless sensor 10
Sensor test switch SW of the remote control 1, controller 30, facing toward. Y in step 840
: FIG. 8B), emit a test signal from the optical transmitter/receiver 32 (step 842), or transmit the test signal from the remote controller 1 to
Turn the remote control 1 with the roller 30 facing the controller 20.
・Inspection switch for controller/roller 30 SW 3 1
is operated (Y in step 844), and an inspection signal is emitted from the optical transmitter/receiver 32 (step 846).

When a test signal is emitted from the remote controller 30, the test signal is directly applied to the wireless sensor 10, so that the wireless sensor 10 performs its own test. Further, when an inspection signal is emitted from the remote controller 1/roller 30, the inspection signal is given to the controller 20. The wireless sensor 10 performs its own test by transmitting the control roller 20 or berth+-i= which received the droplet inspection signal to the wireless sensor 0 as the test signal.

In this way, the wireless sensor 10 has a remote controller
Test signal from roller 30 or controller/roller 20
The wireless sensor 10 starts its own test when it receives a burst signal as a test signal from the remote control 1...controller 30.
The operation in which the controller 20 receives an inspection signal from the controller 20 and sends out a burst signal as a test signal will be described.

Point the remote controller 30 toward the controller roller 20 and operate the inspection switch SW 3 1 of the remote controller 30 (Y in step 844). The inspection signal is emitted from the optical transceiver 13 section 32 (step 84).
6) When the light is received by the light receiving circuit 202 of the controller 20 (Y in step 604, Y in step 752)
First, the hearth 1 light emitting circuit 203 is turned on (step 754). When the Hurst light emitting circuit 203 is turned on, a burst signal as a test signal is emitted from the light emitting diode LED21, and an identification burst signal is received by the photodiode PDIO of the wireless sensor 10. The berth L-Q light circuit 203 is turned on, and the test lamp L23 is turned on via the indicator light control circuit 206.
is lit (step 756), and again 0, ringing circuit 20.
7 is activated briefly (step 758L), thus informing the operator that the check signal from remote controller 30 has been successfully received by controller 20.

After that, the burst light emitting circuit 203 is turned off (step 760).

Wireless sensor ■When there is a light reception interrupt on the 0 side, the photodiode PI)10. A light reception signal is detected via the light receiving circuit 101 and the interface IFIOI, and it is determined that it is a sensor test signal of the remote controller 30 or t, or a signal to the berth 1 from the controller 20. (Y in step 542), sets a test or check signal in the test circuit 106 via the interface IF 106 (step 544), sets a check flag (step 546), and indicates that the test is in progress. Interface IF10
The test indicator light L1 is turned on by setting the test indicator light circuit 108 through the control circuit 8 (step 548).

Thereafter, after resetting the first timer circuit 107, which will be described later (step 52o), an interrupt standby state is established (step 52o).
Return to 2).

By setting the test or inspection signal to the test circuit 106 (step 544), the test circuit 106 starts operating and automatically tests its own wireless sensor 10. In other words, if the fire detector 12 is a scattered light type extension detector that receives scattered light from smoke and outputs a signal, for example, a test light emitting element installed in the detector, or a scattered light In addition, test operations such as automatically ripening are performed using a built-in heater, etc. in the case of the thermal sensor. Since these test operations are normal techniques {A:i, they will not be explained here in detail (for example, in Japanese Patent Application Laid-Open No. 59
- Publication No. 1.08940 and JP-A-59-21034
(9 references to Publication No. 7 ￥γ). This embodiment will be described below using a scattered light type drift detector as an example. b't is pseudo-scattered light caused by one reno of the test circuit, that is, scattered light and four M
=1) Light is emitted from the test light emitting element, and if the fire detector 12 does not detect fire normally, it outputs a fire word by receiving the pseudo scattered light, and then is detected by the fire alarm detection circuit 1O4, and a fire interruption occurs (Y in step 508).

When a fire interruption occurs, it is determined whether or not the inspection flag is set (step 51o), and since the test is currently in progress and the inspection flag was set to set 1 in step 546, the determination is made here. becomes “yes” or “Y”. Therefore, an inspection completion signal is set to the light emission control circuit 102 via the interface IF 102 (step 512).
), whereby an optical signal indicating that the inspection or test has been successfully completed is sent from the light emitting diode LED 10 to the remote controller 30 or controller I/roller 2o.

Once the optical signal indicating that the test has been successfully completed, that is, the inspection completion signal, is sent, the interface I
The test indicator light circuit 108 is cleared via F108, and the test indicator light L. is turned off (step 514
). The inspection flag is cleared (step 516), and interface IF1. The recovery circuit 103 is set via 03 (step 518). Finally, the first timer circuit 107 (to be described later) is reset (step 52o), and the state returns to the interrupt standby state (step 522). The test operation ends.

When the inspection completion signal sent from the wireless sensor 1o is received by the controller 20 in step 512 (Y in step 740). A transfer prohibition command is output to the non-multiple notification circuit 208 (step 7l12). fire lamp L21
and test lamp L2, are turned on (step 744),
Then, the ringing circuit 207 is operated for a short time to operate the buzzer B for a short period of time 1'jFl (step 746). This series of lighting and ringing signals allows the operator to know that the test results were good. Then fire lamp L
521 and the HA I lamp L2 (step 748). The transfer circuit 208 returns to the state before receiving the inspection completion signal, that is, the state in which the 'f5 notification prohibition command is canceled in the case of this embodiment. (step 75o).

When the inspection completion signal (step 512) sent from the wireless sensor 10 is received by the remote controller 1/roller 30 (Y in step 810), the inspection completion k indicator of the remote controller 1/roller 3o is received. L32 is turned on for a predetermined period of time (steps 812, 814, 816), which indicates that the inspection completion signal from the wireless sensor 310 has been received, that is, the wireless sensor 10
You can know that the test was carried out successfully.

Dai 1 no IJ it Next, the operation when an actual fire abnormality occurs will be explained. As mentioned above, in the Mokudai example, the fire detection method is N-type smoke detection.

That is, the fire detector 12 of the wireless sensor 10 is
The smoke detector is a scattered light type smoke detector, and includes a light emitting part and a light receiving part (not shown), and the light emitting part emits light every predetermined time, e.g.
By emitting light every ~4 seconds (every 3.5 seconds in this example), and detecting the scattered light that is scattered by the smoke from the light emitting part and reaching the light receiving part when there is more than a specified amount of smoke. It outputs a smoke detection signal. Each time a smoke detection signal is output from the smoke detector 12 of the second scattered light, the wireless sensor 10 converts the smoke detection signal into an optical signal and sends it as a fire signal from the photodiode PDIO to the controller 20.

In this regard, the wireless detector 10 is configured to have a second predetermined period of time to monitor whether the fire anomaly has been resolved and the fire detector 12 no longer outputs a smoke detection signal, i.e., a fire anomaly signal. For example, a second timer circuit 110 is provided which counts 4 to 6 seconds (in this example, 4 seconds) which is slightly larger than 3.5 seconds to time-up.

The second timer circuit 1. 1 0 is reset every time more than the specified amount of smoke is detected in the detection operation every 3.5 seconds, but if the smoke more than the specified amount is not detected in the detection operation every 3.5 seconds. In this case, time will expire after 4 seconds have elapsed. This second evening/ima circuit 110
When the time is up, the wireless detector 110 sends a normal signal to the controller 20, and as a result, the fire detector 12 of the controller 1/roller 20 detects j! It can be seen that the A detection signal is no longer detected.

In the controller 20, if a normal signal is not sent out for a predetermined period of time (one minute in this embodiment) after the wireless sensor 10 first sends out a smoke detection signal, that is, a fire signal, This will be determined as a fire abnormality. That is, the controller 20 is provided with a first program timer 204 that starts a counting operation upon reception of the first smoke detection signal, that is, a fire signal, and times out when one minute has been counted. Program timer 204 is cleared when a normal signal sent from wireless sensor 10 is received.

Therefore, as the fire detector 12 continues to output the smoke detection signal intermittently for one minute, the second timer circuit 110
If the normal signal is not sent to the controller 20 without timing up, the first program timer 204 will time out and an abnormal fire action will be taken.

In this way, if a normal signal is not generated for one minute after receiving the first fire signal, that is, if the fire signal continues to be generated for ■ minutes, the fire alarm will be stopped. Therefore, it is possible to avoid false alarms such as when the first smoke detection signal is temporary smoke such as cigarette smoke.

Hereinafter, the fire abnormal operation will be explained in more detail based on actual operation.

First, to explain the operation of the wireless detector 10, the fire alarm detection circuit detects that the fire detector 12 has output a smoke detection signal due to the presence of more than a specified amount of smoke between the light emitting part and the light receiving part (not shown). If 104 is detected, fire cutting occurs (Y in step 508). When a fire interruption occurs, it is determined whether or not the inspection flag is on, but since this is not a test, the inspection flag is off (N in step 510). Therefore, interface IF1
A fire signal is set in the light emitting control circuit 102 via the light emitting diode LED 10 (step 524), whereby a light signal indicating a fire abnormality is sent from the light emitting diode LED 10 to the controller 20.

When the optical signal indicating a fire abnormality, that is, the fire number W, is sent out, in order to cause the fire detector 12 to perform the fire monitoring operation again after 3.5 seconds, the recovery circuit 103 is set via the interface IF 103 ( At step 526), the activated fire detector 12 is restored, and the second timer circuit 110 is set via the interface IFI 10 (step '528).
Finally, the first timer circuit 107, which will be described later, resets the
(step 520),'! The process returns to the 11-inclusive standby state (step 522).

If a fire haze is in a normal state, that is, if more than a specified amount of smoke is penetrating, the fire alarm detection circuit 104 detects the smoke detection signal from the fire detector 12 again after 3 to 5 seconds, and a fire interrupt occurs. (Y in step 508). Fire signal is controller 20
(step 524), and this fire signal sending operation continues as long as the abnormal fire condition, that is, smoke exceeding the specified amount remains. Since the second timer circuit 110 is reset each time (step 528), the second timer interrupt (step 550) will not occur and a normal signal will not be sent to the controller 20. After that, , a fire signal continues to be sent to the controller 20 every 3.5 seconds, and as mentioned above, when one minute has passed since the first fire signal was received, the controller 20 determines that an actual fire has occurred and starts the fire. Appropriate abnormal fire actions such as issuing a warning will be taken.

However, if the abnormal fire condition disappears during the process, the fire alarm detection circuit 104 will not interrupt the fire.
Therefore, since the second timer circuit 110 is not set 1 or reset 1, the time is up when the second predetermined interval, that is, 4 seconds has elapsed, and the interface IFI
Generate a second timer cut via IO (step 5
50 Y). When the second timer scraping occurs, a normal signal is set in the light emission control circuit 102, and the light emitting diode and diode L
An optical signal indicating normality is sent from ED10 (step 552). When this optical signal indicating normality is received, the controller 20 cancels the accumulation operation for issuing a fire alarm, that is, the time counting of one minute.

Next, the operation of the controller 20 will be explained. In this example, the case is explained in which the MW4 flag is set (step 786), the operation is in the accumulation mode, and the FG alarm is enabled (step 776), so an abnormal fire condition occurs. If the fire signal transmitted from the wireless detector 10 (step 524) is first received on the controller 1/roller 20 side (Y of step 702)
), it is determined whether the mode is MM mode or not, and this determination is the accumulation mode (Y in step 704). Therefore, next, the first
program timer 204 is started (step 70).
8>, the lamp L22 indicating that storage is in progress is lit (step 7).
'710), a second program timer 205 to be described later.
is stopped (step 712), and step 604
While waiting for the next light reception signal, interrupts of the first program timer 204 and the second program timer 205 are monitored (steps 606 and 616).

The next light reception signal is received (Y in step 604). If it is determined that it is a fire signal (Y in step 702)
), the second program timer 204 is now running (Y in step 706), so the second program timer 205 is simply stopped (step 71.).
2). Furthermore, the process returns to the state of waiting for the next light reception signal (step 6o4). During this time, the first program timer 20
4 continues counting the time.

In the wireless detector 10, if the abnormal fire condition continues and the fire signal (step 524) continues to be sent every 3 to 5 seconds, the first program timer 204 in the controller 2o continues to count the time. Thereafter, when one minute has elapsed, the first program timer 204 outputs a time-up signal and a first program timer interrupt occurs (Y in step 606). As a result, the firewood pickling lamp L22 is turned off and the fire lamp L21 is turned on (step 608), and the buzzer B is sounded by operating the sounding circuit 207 (step 610).
．． In this embodiment, since the state is set to enable transfer (N in step 612), a fire signal (not shown) is received by outputting a fire signal to the group 1 circuit 208 with, for example, adding a self-address (step 614). When the so-called fire action of performing 11 ffl to the machine or telephone transmission terminal etc. is stopped, it is notified that there is a fire.

Also, if after receiving the fire signal (step 7)
02 Y). While the first program timer 20.1 is performing the time counting operation (Y in step 706), a fire 51? Fire detector 12 that monitors fire every 3.5 seconds when the normal condition disappears.
will no longer output a fire abnormality signal (N in step 508).
) Setting the second timer circuit 110 (step 528)
Since this is no longer performed, an interrupt step 550) of the second timer circuit 110 occurs after four seconds have elapsed, and a normal signal is sent out (step 552).

Step 7: The normal signal sent out in this way from the wireless sensing HIO is received by the controller 20.
34), the N loading lamp L22 is turned off (step 7
36), the first program timer 204 is cleared, and the second program timer 205, which will be described later, is reset (step 738), thereby ending the storage operation in the controller 20.

In addition, although the fire operation in the N product mode has been explained above, if the fire operation is not in the accumulation {a mode, the N
>. When i receives the first fire signal, fire lamp I21 is lit (step 716). The ringing circuit is activated (
Step 718). If the transfer vote is not stopped (step 72)
0N) A fire action of outputting a fire signal to the alarm transfer circuit 208 (step 722) is immediately performed.

Afterwards, after the fire situation has been dealt with, the remote controller 30 must be used to perform recovery operations.
toward the controller 20 and turn the recovery switch SW:l
9 (step 856) to send out a recovery signal. When the recovery signal from the remote controller 30 is received by the controller 1/roller 20 (step 7660Y)
The L fire indicator light L21 is turned off (step 768), the first program timer 204 is cleared and the second program timer 205 is reset (step 770), and the sound circuit 207 is turned off (step 772
). Shimodo circuit 20 to confirm the recovery operation after I'ii.
7 is operated for a short time (step 764). This will return you to normal fire monitoring status.

In addition, this restoration operation also turns off the indicator lights L21 to L26, so that the sensor abnormalities such as light path interruption failure, low voltage of the sensor lightning pond, or falling off, etc., which will be described later, will occur. etc., the light path interruption indicator light L24, the sensor battery replacement indicator light L25, and the sensing? This restoration operation is also performed for the purpose of turning off indicator lights such as the fertilizer abnormality indicator light L26.

This is so enviable Next, the operation when a falling-off abnormality occurs will be explained.

If an abnormality occurs between the fire detection h l 2 in the wireless sensor 10 and the sensor adapter 4, such as poor contact or falling off, an abnormality related to the installation state may occur, and the sensor may be detected as falling off. When the circuit 105 detects this, a step 530) in which a drop-out error signal is received on the microprocessor MPUI side via the interface TF105 and a drop-out interrupt occurs.

When a dropout interrupt occurs (Y in step 530), an abnormality signal is set in the light emission control circuit 102, and an optical signal representing the abnormality is sent from the light emitting diode LED10 (
Step 532>. Thereafter, the first timer circuit 107 is reset (step 520) and returns to the interrupt standby state (
Step 522).

The abnormal signal sent from the wireless sensor 10 in this manner is received by the light receiving circuit 202 of the controller 20.Y) in step 724. Interface I
P206 and the indicator lamp lighting control circuit 206, the sensor abnormality lamp L26 is turned on (step 726), and the lJP3 operation circuit 207 is operated for a short time (step 7).
28). When the detector abnormality lamp L26 lights up, the operator or administrator can disconnect the fire detector 12 and the detector adapter 14.
It is possible to know about poor contact between the Detection of falling off of the sensor is a common technique, so it will not be described in detail here; see, for example, Japanese Utility Model Publication No. 54-24622 and Japanese Utility Model Publication No. 56-47758). Furthermore, if the wireless sensor 10 is of an integrated configuration, dropout detection is not necessary.

When the battery voltage monitoring circuit 109 detects a drop in the voltage of the built-in battery used for both the wireless sensor {fire detector 0} 2 and the sensing adapter 14, When the detected signal is taken into the microphone 1 coprocessor MPU I side via the interface IF 109, a voltage drop interrupt (step 534) occurs. When a voltage drop interrupt occurs (step 534, a voltage drop signal is set in the YL light emission control circuit 102, and a light signal representing a voltage drop is sent from the light emitting diode LEDIO (step 536). Thereafter, the first timer circuit 107
is reset (step 520). The process returns to the interrupt standby state (step 522).

When the voltage drop signal sent from the wireless sensor ■0 is received by the controller 20 (Y in step 730)
, the sensor battery replacement lamp L25 is lit (step 7).
32), and the ringing circuit 207 is operated for a short time (step 7).
28), this allows the operator to know that the battery of the wireless sensor 10 should be replaced.

Note that the wireless sensor 10 is described as being powered by a built-in battery, or may be powered by commercial power. In this case, it is best to have a built-in rechargeable battery to deal with power outages, etc.
Further, it is preferable to monitor the supply status of the commercial power source 1E in order to keep an eye on the drop in pressure, and when the IQ supply pressure drops due to a power outage or the like, to send out an optical signal indicating the voltage drop as a power outage signal.

Next, a description will be given of the operation in the case where an optical path is interrupted between the wireless sensor 10 and the controller 20, that is, when it becomes impossible to send and receive signals between the two.

On the wireless sensor 10 side, there is a first timer circuit 107 that times up every time a first predetermined time, for example, eight minutes is counted, and outputs a first predetermined time elapsed signal (eight minutes elapsed signal). provided t). The first timer circuit 107 is 8
Every time the first predetermined time elapsed signal is output every minute,
The first timer interrupt occurs (Y in step 538), and a normal signal is set in the light emission control circuit 102.
Light emitting diode LED 1 from wireless sensor 10
0, a normal signal is sent (step 540).

If a normal signal is sent out, the first timer circuit 107
is reset (step 520) and starts counting 8 minutes from the beginning.

Controller 2 Off! I1 includes a second program that outputs an optical path interruption signal when the time is up when a certain period of time longer than 8 minutes (first predetermined time) has been counted, for example, 17 minutes, which is more than double in this embodiment. A timer 205 is provided and the second program timer 205 is reset each time a normal signal from the wireless sensor 10 is received by the controller 20.

As a result, if the optical path is not blocked, the second program timer 2 provided on the controller 20 side
05 is reset (step 738) upon a normal signal received (Y in step 734) at least every 8 minutes, so it never times up and the second program timer interrupt does not occur. (N of step 616). If an optical path blockage occurs and a normal signal is no longer sent from wireless sensing 0,
When the second program timer 205 of the roller 20 times out after 17 minutes, a second program timer interrupt occurs (Y in step 616). The light path interruption indicator L21 is turned on (step 618), and
11% operating circuit 207 does not operate for a short time (Step 620)
In this way, it is notified that the optical path has been interrupted.

Note that the set time of the second program timer 205 is 8
The value of 17 minutes, which is more than twice the number of minutes, is due to the fact that when the wireless sensor 10 sends out a normal signal, for example, a person has just passed between the optical paths in the optical path 3I! Due to some kind of coincidence that cannot be said to be a disconnection error, the controller 20 was unable to receive the idle signal, and due to this, the second uplink program timer 205 timed up early and erroneously occurred. The purpose is to eliminate the problem of generating abnormal signals.

In addition, in order to confirm the optical path, the first timer circuit 107
By timing up every 8 minutes, it is ensured that the signal emitted from the wireless sensor 10 is not limited to the normal signal output from the wireless sensor 10, but any signal emitted from the wireless sensor 10. 1. It is only necessary to confirm that the light is received by the roller 20. For this reason,
Every time an optical signal is emitted by the light emission control circuit 102 of the wireless sensor 10 (steps 512, 524, 53
2, 536, 552, 556), first timer circuit 10
7 (step 520). An additional 8 minutes are counted from the optical path (i1) in order to send out a normal signal for recognition. This saves the power needed to send out wasted optical signals from the wireless sensor 10, and the built-in The plan is to extend the lifespan of Tsumeike.

Point the gomensei image nomoto controller 30 toward the controller 20 and turn the transmission test switch SW, . (Step 8)
52 Y), a transmission test is performed.

Switch SW3. A transmission test signal is sent out by the operation of step 854). That's controller 1 and roller 20.
(Y in STEP 762). Does this transmission test ensure that transmission is performed? Since this is a test that only verifies i1, +I+'5 motion circuit 207 is simply published for a short time (step 764).

7'"J' -J!Li To remote 1, controller 1, roller 30 to controller 1, roller 20
When the buzzer stop switch SW32 is operated toward (Y in step 848). A buzzer stop signal is sent out (step 850), and when the signal is received by the controller I/roller 20 (Y in step 792), the buzzer 4 IPt 2 0 7 is turned off in the controller 20, and the buzzer B is turned off. 11, the movement will be stopped.

[Effects of the Invention] As described above, according to the present invention, the information signal sent from the fire detection section and the request signal sent from the mobile transmission section are all converted into optical signals and transmitted cordlessly, that is, wirelessly. The degree of freedom in installation is greatly expanded, and since it is an optical signal, it has the advantage of being highly reliable against noise and transmission failures.

[Brief explanation of drawings]

FIG. 1 is a diagram schematically showing the configuration of an optical wireless fire alarm system according to an embodiment of the present invention, and FIG. 2 is a diagram showing the internal circuit of the wireless sensor 10 shown in FIG. 1. 3 is a diagram showing the internal circuit of the controller 20 shown in FIG. 1, FIG. 4 is a diagram showing the internal circuit of the remote controller 30 shown in FIG. Fifth
FIG. B is a flowchart for explaining the operation of the wireless sensor 10, FIG. 6, FIG. 7A, FIG. 7B, and FIG.
FIG. C is a flowchart 1- for explaining the operation of the controller 20, and FIGS. 8A and 8B are flowcharts for explaining the operation of the remote controller 1/roller 30. In the figure, 104. f wireless sensor, 16 an optical transmitting/receiving section of the wireless sensor, 20 a controller, 22 an optical transmitting/receiving section of the controller, 30 a remote controller, 32 an optical transmitting/receiving section of the remote controller.

Claims (6)

[Claims] (1) A fire phenomenon detection means that outputs fire information when a fire is detected, a light receiving means for the detection section for receiving an optical signal, and a light receiving means for the detection section that receives a spatially transmitted optical signal of a test request. testing means for testing the fire phenomenon detection means in order to obtain test result information when received; and converting the information signals of fire information and test result information obtained from the fire phenomenon detection means into optical signals and spatially transmitting the same. a fire detection section having a light transmitting means for the detection section for the detection section, a means for generating request contents including the test request, and a movement for converting the request contents generated by the generating means into an optical signal and transmitting it in space. a mobile transmitting unit having a light transmitting unit for a transmitting unit; a light receiving unit for a receiving unit that receives an optical signal of the information signal transmitted in space and an optical signal of the request content; and a light receiving unit for the receiving unit. a determining means that performs a determination based on the information signal when the optical signal of the information signal is received;
A fire alarm system comprising: a receiving section having a response means for responding to the request content when the light receiving means for the receiving section receives an optical signal having the request content. (2) The request content generated by the generation means of the mobile transmitter includes an inspection request for the receiver to be transmitted to the receiver, and the receiver transmits light to the receiver. further comprising means, whereby the response means of the receiving section determines that the receiving section light receiving means has received an optical signal of an inspection request for the receiving section from the mobile transmitting section; 2. The fire alarm equipment according to claim 1, wherein the light signal for the test request is sent to the fire detection section from the light transmitting means for the receiving section. (3) The mobile transmitter transmits the optical signal of the test result information sent from the light receiving means for the mobile transmitter that receives the spatially transmitted optical signal and the light transmitter for the fire detector. 3. The fire alarm equipment according to claim 1 or 2, further comprising a display means for displaying test result information by determining the light received by the partial light receiving means. (4) The fire detection section further includes an abnormality detection means, whereby the information signal spatially transmitted from the light transmission means for the detection section includes abnormality information obtained by the abnormality detection means. Fire alarm equipment as described in any of paragraphs 1 to 3. (5) The receiving section has an input means for manually inputting the request contents, so that the response means of the receiving section similarly responds to the request contents input from the input means. A fire alarm system according to any one of claims 1 to 4. (6) The receiving section has a second light transmitting means, whereby the received information signal is converted into an optical signal and spatially transmitted to a higher-level second receiving section. Fire alarm equipment according to any one of Clauses 1 to 5.