JP3152502B2 - Fire alarm system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system comprising a fire receiver and a plurality of repeaters connected to the fire receiver.

[0002]

2. Description of the Related Art Conventionally, a fire alarm system of a terminal detects a fire and sends out a fire signal, and a fire receiver receives the signal and performs a fire operation such as an alarm. A fire detector is a so-called analog type sensor that sends out a detection value related to a fire.A fire receiver makes a fire discrimination based on the detection value, and the fire discrimination system is linked with controlled terminal equipment such as smoke prevention equipment. There is.

Generally, the former system is intended for small-scale systems, and the latter system is intended for large-scale systems. However, in the latter case, in recent years, the height of buildings and the number of functions of facilities have been increasing. The capacity that the fire receiver can control is approaching its limit. Therefore, the system is hierarchized and multiple relays are connected to the fire receiver, and each relay monitors the operation status of a large number of terminal devices (monitoring terminal devices such as fire detectors and controlled terminal devices). Or make various judgments such as fire judgments based on information from those terminal devices.These functions are the same as those originally performed by fire receivers. The system collects the results and manages the system at all times (fire operation, recovery operation, transfer, etc.) based on the collected results. For example, on February 27, 1992, Patent application Hei 4-4 filed
No. 1588, filed on Feb. 4, 1992, Japanese Patent Application No. 4-
No. 19176 and Japanese Patent Application No. 4-19177 filed on Feb. 4, 1992 have also been proposed.

[0004]

SUMMARY OF THE INVENTION In such a hierarchical system for a large-scale system, when various monitoring terminal devices detect an abnormal environment state or a controlled terminal device operates, a repeater is activated. It is desirable that the signal be transmitted to the fire receiver without fail, and whether or not other related operations should be reliably performed.

[0005] Accordingly, an object of the present invention is to provide a fire alarm system as described above, in which a repeater is used without intentionally detecting an abnormal state in various monitoring terminal devices or operating various controlled terminal devices. It is possible to remotely test whether or not to perform the operation that should be performed when these abnormal conditions are detected, simply by operating the fire receiver, and also to transmit the signal between the fire receiver and the repeater. An object of the present invention is to provide a fire alarm system capable of checking a state.

[0006]

According to the present invention, a plurality of terminal devices including a controlled terminal device and a monitoring terminal device are connected to a fire receiver via a relay according to the present invention. , The repeater collects various information from the terminal device, and performs various determinations including a fire determination based on the various information, and the fire receiver transmits the terminal device from the relay device to the terminal device. In the fire alarm system that collects various information and the results of the various judgments and performs various managements, an operation test setting provided in the fire receiver for setting all the devices to an operation test state Means, terminal designation means provided in the fire receiver, capable of designating the terminal equipment desired to be tested, and the terminal equipment designated by the terminal designation means being connected An operation test instruction transmitting means provided in the fire receiver for transmitting an operation test instruction to the relay, and the specified terminal device operates based on the operation test instruction transmitted by the operation test instruction transmission means. Performing a pseudo operation setting indicating that the operation has been performed, and returning the content of the pseudo operation setting to the fire receiver in accordance with a return command from the fire receiver, a pseudo operation setting means provided in the repeater; and A fire alarm system comprising: a reading unit provided in the fire receiver, for sending out the return command, and reading in the content of the pseudo operation setting set by the pseudo operation setting unit from the repeater. Provided.

[0007]

On the fire receiver side, after all the equipment is set to the operation test state by the operation test setting means, if the terminal equipment desired to be tested is specified by the terminal specifying means, the operation test command sending means is used. Then, the operation test command is transmitted to the repeater to which the specified terminal device is connected. On the repeater side receiving the test command, the designated terminal device operates (for a monitoring terminal device such as a fire detector, a fire alarm, for a controlled terminal device such as a fire door, an opening / closing operation, etc.). )
The pseudo operation setting is performed by the pseudo operation setting means, and when the return command is transmitted from the capture means of the fire receiver, the contents of the pseudo operation setting are returned to the fire receiver. On the fire receiver side, it is possible to judge the propriety of the test result from the content of the pseudo operation setting taken in by the taking means, and thereby, when the terminal device actually operates, the processing to be performed by each repeater is surely performed. It can be remotely confirmed that the operation signal of the terminal device is reliably transmitted to the fire receiver.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
Are, for example, Japanese Patent Application Nos. 4-19177 and 4-1917 filed on Feb. 4, 1992 by the present applicant.
No. 6, a configuration showing an example of a fire alarm system to which the present invention can be applied, as described in Japanese Patent Application No. 4-41588 filed on Feb. 27, 1992 by the present applicant. In the figure, a plurality of repeaters RP are shown connected to the fire receiver RE. The fire receiver RE and each repeater RP are connected in a loop by two systems, a main loop signal line 21 for transmitting signals in one direction and a sub-loop signal line 22 for transmitting signals in the other direction. Have been. Note that the signal line L1 is collectively referred to as the signal line L1 including the main loop signal line 21 and the sub loop signal line 22.

A polling signal, a return signal, and various other signals are transmitted from the fire receiver RE to each repeater RP, and from each repeater RP to the fire receiver RE via both the main loop signal line 21 and the sub-loop signal line 22. In this case, the fire receiver RE and each of the repeaters RP confirm that no signal is flowing to both of the signal lines 21 and 22 at the time of signal transmission. The same signal is transmitted to both the line 21 and the sub-loop signal line 22. Therefore, the fire receiver RE and the repeater RP receive the same signal on both the main loop signal line 21 and the sub-loop signal line 22 at the time of signal reception, but receive the signal from the main loop signal line 21 side. Is actually taken into the signal processing unit having a microcomputer or the like inside the fire receiver RE or the repeater RP for signal processing only by the signal on the main loop signal line 21 side. Line 2
When there is no reception from the first side, the signal received on the sub-loop signal line 22 side is taken into the signal processing unit inside the fire receiver RE or the repeater RP.

Various terminal devices including a terminal device for monitoring such as a sensor and a controlled terminal device such as a fire door via a child repeater are connected to each repeater RP. Monitoring repeater 31 as a child repeater via L2,
Control repeater 32 and analog fire detector (photoelectric,
(Ionization type, thermal type, etc.) 34 and the like, and a display 36 is shown connected via a signal line L3. The monitoring repeater 31 includes a normal type smoke detector 41, a differential type sensor 42, and a constant temperature type sensor 43 as monitoring terminal devices.
, A terminator 44, a district sound device (district bell) 46, a transmitter 48, and the like are connected to each other.
Is connected to a controlled terminal device 51 such as a fire door closing device or a smoke exhaust damper opening device. The district acoustic device 46 is a type of terminal to be controlled.

A display / operation device 71 can be detachably connected to each repeater RP. By connecting the display / operation device 71 to the repeater RP, commands and the like originally sent from the fire receiver RE are sent from the display / operation device 71 via the repeater RP, and The data to be displayed on the receiver RE can be displayed on the display / operation device 71 via the repeater RP.

With this configuration, normally, in accordance with a polling signal from the fire receiver RE via the main loop signal line 21, the repeater RP takes in signals from various sensors and performs signal processing for fire monitoring. The result is returned to the fire receiver RE, and when a fire is detected, the operation of a controlled terminal device such as a fire door is controlled.

FIG. 2 shows a block circuit diagram of the inside of the fire receiver RE in FIG. 1. In the fire receiver RE shown in FIG.
The OM 11 is a storage area for programs and the like including all operations, the ROM 12 is a storage area for predetermined items such as addresses and instruction codes of each repeater, the RAM 11 is a work area,
AM 12 is a storage area for storing a database of all terminals collected from each repeater RP, RAM 13 is a storage area for storing an operation test flag indicating an operation test state, and RAM 14 is a test result. Is an operation unit for inputting by using switches such as an operation test switch SW1 and a test release switch SW2 and ten keys, and DP is an LED, that is, an indicator light such as a test light LED1 using a light emitting diode. A display unit such as an LCD including a liquid crystal display or the like, TRX11 is:
A signal transmission / reception unit such as a parallel / serial converter or a serial / parallel converter for transmitting / receiving a signal to / from each repeater RP via the signal line L1, and IF11 to IF13 are interfaces, respectively.

One of the repeaters RP in FIG. 1, for example, n
A block circuit diagram of the inside of the repeater is shown in FIG. The same applies to the internal circuits in other repeaters RP. In the n-th repeater RP shown in FIG.
A microprocessor and a ROM 21 are storage areas for programs including all operations, a ROM 22 is a storage area for predetermined items such as a self-address, an instruction code, a fire determination reference,
The ROM 23 is a storage area for a database or a link table of each terminal device, the RAM 21 is a work area, the RAM 22
A storage area for collecting information from each terminal device and storing a fire signal and an operation state of the controlled terminal device;
3 is a storage area for storing an operation test flag indicating that it is in an operation test state, and TRX21 to TRX23 are
A parallel / serial converter or a serial / parallel converter for transmitting / receiving signals to / from the fire receiver RE via the signal line L1, each terminal device via the signal line L2, and the display 36 via the signal line L3, respectively. Signal transmission / reception unit such as converter, IF21 to IF23
Are interfaces, respectively.

Hereinafter, the operation of the fire receiver RE will be described with reference to FIGS.
The operation of the fire alarm system shown in FIGS. 1 to 3 will be described with reference to the flowchart in FIG. 7 and the flowcharts in FIGS. 8 and 9 showing the operation of the repeater RP.

First, the operation of the fire receiver RE will be described. First, it is confirmed whether or not there is an input from the operation unit OP using a numeric keypad or various switches. If there is no input from the operation unit OP (step 108) N), from number 1 to N
No. (N = 3 in the embodiment of FIG. 1) sequentially sends and calls a state information return command to each repeater RP, reads the returned state information (step 110), and outputs a sensor indicating a fire occurrence. It is confirmed whether or not there is a fire signal (including the interlocking data) and a state change such as an operation of the controlled terminal device (step 112). Here, the interlocking data is stored in the storage area ROM 23 in each repeater. For example, when a certain sensor operates by detecting a sensor level indicating a fire occurrence, the sensor issues an alert or This is data related to a controlled terminal device such as a fire door that should be linked in association with the operation. And
When the sensor operates, the repeater controls the controlled terminal device related to the operated sensor to operate based on the interlocking data in the storage area ROM 23, and transmits the content of the interlocking data together with the fire signal. Send to fire receiver.

As a result of confirming whether there is a fire signal or a state change, if there is no state change, the process proceeds to the next number of repeaters, but if it is determined to be a fire signal indicating the occurrence of a fire including interlocking data. Or it is determined that there is a state change such as the operation of the controlled terminal device (step 1).
12) At this stage of the description, since there is no flag in the storage area RAM 13 (N in step 148 in FIG. 7), it is not in the test state yet, but it is an actual fire occurrence or operation of the controlled terminal device. In the case of occurrence, necessary fire operation processing is performed, such as giving a fire alarm such as sounding a fire bell or displaying interlocked data transmitted together with the fire signal (step 166 in FIG. 7). . If it is any state change other than a fire, processing according to the information on the state change is performed (step 114).

When there is an input from the operation unit OP (Y in step 108), an operation test which may be generated by operating an operation test switch SW1 provided in the operation unit OP, for example, may be performed. It is determined whether or not an input is made, and if it is not an operation test (N in step 118 in FIG. 5, N in step 126, and N in step 136 in FIG. 6), processing according to the input content is performed (FIG. 6). Step 144),
It returns to the flow of FIG.

If it is an operation test (Y in step 118), first, an operation test mode flag is set in the storage area RAM 13 and the test lamp LED1 is turned on to indicate that the test is being performed (step 120). Then, an operation test command is transmitted to all the relays RP by a code capable of designating all the relays RP (step 122), and the whole system is set to the test mode (Y in step 124).

In the test mode, when a terminal device desired to be tested is designated and input by using the ten keys of the operation unit OP (Y in step 126), the flag in the storage area RAM 13 is checked. After confirming whether or not the mode is the test mode (step 128 and step 130, Y), the input contents are stored in the storage area RAM 14 and displayed on the display unit DP (step 132). An operation test command is transmitted to the repeater RP to which the terminal device is connected by designating the terminal device (step 13).
4).

After transmitting the operation test command, a status information return command is transmitted to the repeater RP that has transmitted the test command, and the information returned from the corresponding repeater is read (step 110). If it is information indicating a fire occurrence including operation information or interlocking data (step 1
12), since the operation test mode flag is set in the storage area RAM 13 (step 14 in FIG. 7).
8Y), a test process is performed. That is, first, the terminal device that has returned the information indicating the occurrence of the fire, including the operation information of the controlled terminal device or the interlocking data,
In step 2, it is confirmed whether or not the terminal device matches the designated terminal device stored in the storage area RAM 14 (steps 150 and 152). Means that. Therefore, the result is displayed (printed out) on a display or the like (in the case of fire occurrence information, the interlocking data from the interlocking table of the returned repeater RP is also displayed). Then, a display command is sent to the display 36 to display the result on the display 36 (step 154). Thereafter, a terminal restoration instruction is transmitted to the repeater RP that has performed the test (step 1).
56), the test for the terminal device is terminated, and thereby, a new terminal input can be performed (Y in step 126 in FIG. 5) to perform a test for another terminal device.

When the information indicating the occurrence of a fire is transmitted, and the information on the occurrence of fire other than the terminal equipment specified in the storage area RAM 14 is transmitted (step 1 in FIG. 7).
52) N) Since this is true fire occurrence information that is not based on a test, a test release command is sent to all the repeaters RP (step 160), and the test mode of the entire system is released (step 162). Y), and after erasing the operation test mode flag in the storage area RAM 13 of the fire receiver RE itself (step 164), a necessary fire operation is performed (step 166).

When all the tests related to the terminal device are completed, the test release switch SW2 of the operation unit OP is operated. When there is a test release input by operating the switch SW2 (step 136 in FIG. 6). Y), all repeaters R
A test cancellation command is sent to all the repeaters RP by a code that can specify P (step 138). If there is a response from all the repeaters RP (Y in step 140), the test lamp LED1 is turned off and the operation test mode flag is deleted from the storage area RAM13 (step 142). As a result, the test mode of the entire system is released, and returns to the normal monitoring mode shown in the flow of FIG. At this time, the display unit D
The display contents at P may be cleared (the display contents may be cleared by inputting another operation, and the display 36 may be performed at the same time).

Next, the operation of the n-th repeater RP will be described with reference to the flowcharts shown in FIGS. nth repeater R
P first checks whether there is a call or command from the fire receiver RE (step 208), and if there is no call or command (N in step 208),
The K various terminal devices connected to the n-th repeater RP are sequentially and cyclically called, and the sensor level is read mainly from the sensor and the operation state is read from the controlled terminal device (step 210). The stored information is stored in the storage area RAM 22 (step 212). In this case, regarding the sensor level, the result of determining whether or not a fire has occurred by comparing it with a fire determination criterion is stored in the storage area RAM22. The content stored in the storage area RAM 22 is sent to the fire receiver RE when there is a status information return command from the fire receiver RE.

The fire receiver RE in step 110 of FIG.
Is present (Y in step 208), and if it is a status information return instruction (Y in step 226 in FIG. 9), the storage area RAM
22 to read out the contents stored in the fire receiver RE.
(Step 228). At this time, the storage area RA
If the content stored in M22 indicates the occurrence of a fire, linked data of a controlled terminal device such as a fire door to be operated in connection with the occurrence of the fire is read out from the storage area ROM 23 and read out together. To send to. At this point, since the entire system has not yet entered the test mode, the fire receiver RE that has received such fire occurrence information,
As described above, necessary fire operation processing is performed in step 166 of FIG. If there is a call or a command (Y in step 208) and the content of the command is other than a status information return command or an operation test command (N in step 216 in FIG. 9, N in step 222, step 226) (N of step 230, N of step 234, and N of step 238), and performs processing according to the contents of the instruction (step 244).

There is a call or command from the fire receiver RE (Y in step 208), which is the operation test command sent from the fire receiver RE to all the repeaters RP in step 122 in FIG. If this is the case (Y in step 216 in FIG. 9), the test mode is displayed on the display 36, and the operation test mode flag is set in the storage area RAM 23 (step 218). (Step 220).

When the fire receiver RE receives the operation test mode setting completion from all the repeaters RP and the whole system is in the test mode, the fire receiver RE next performs a test in step 134 of FIG. Since the terminal device address (operation test command) is transmitted (Y in step 222),
An operation flag is set in an area for the terminal device in the storage area RAM 22 (step 224). This storage area R
The setting of the operation flag in the AM 22 detects that a fire has occurred, for example, based on a sensor level from a monitoring terminal device such as a fire sensor connected to the repeater in a normal operation other than the test mode. This operation is performed when the operation is performed or when the controlled terminal device is operated. In the operation test mode, the operation flag is set in the storage area RAM 22 by the instruction from the fire receiver RE. Is performed.

Next, after transmitting the address (operation test command), the fire receiver RE sends a status information return command to the n-th repeater RP in step 110 (Y in step 226). ), The n-th repeater RP that has received the status information return command reads the content stored in the storage area RAM 22 and returns the content to the fire receiver RE. At this time, if the contents stored in the storage area RAM 22 indicate that a fire has occurred, the storage area RO
The interlock data is read from the interlock table stored in M23 and returned at the same time (step 228).

The returned status information is stored in step 15
When the signal is received by the fire receiver RE in 2, the fire receiver RE sends out a display command in step 154.
When the display command is received by the repeater RP (step 2
30), the display contents are sent to the display 36 for display (step 232).

The contents stored in the area for the terminal device in the storage area RAM 22, ie, the operation flag, are not actually inputted by the operation of the terminal device, but are transmitted from the fire receiver RE for an operation test. Of the storage area RAM
It is necessary to erase the contents of the terminal device area 22. For this erasure, the fire receiver RE proceeds to step 15
After transmitting the display command in step 4, the terminal recovery command is transmitted to the corresponding repeater RP in step 156, as described above.

When the terminal recovery command is received by the repeater RP (Y in step 234), the storage area RAM 22
At a predetermined position, that is, the operation flag of the area for the terminal device is erased, and the display of the display device 36 is also cleared at the same time.
The completion of restoration is returned to the fire receiver RE (step 23).
6) Upon receiving the completion of the recovery (Y in step 158), the fire receiver RE can proceed to the test of the next terminal device.

When all the terminal devices have been tested, the test release switch SW2 is operated on the fire receiver RE side, so that a test release command is sent to all the repeaters in step 138. When such a test cancellation command is received by the n-th repeater RP (Y in step 238), the n-th repeater RP receives the
The operation test mode flag in the storage area RAM 23 and the operation flag in the storage area RAM 22 set at 18 and 224 are erased, and an erasure command is sent to the display 36 connected to the n-th repeater RP. The test mode is canceled (step 240). Then, the release completion of the operation test mode is sent to the fire receiver RE (step 24).
2) It is received in step 140 on the fire receiver RE side. Upon receiving the release completion, the fire detector RE erases the operation test mode flag in the storage area RAM 13 in step 142 as described above, and the entire test is completed.

In the above embodiment, the terminal devices to be tested are input one by one.
May be a format that is automatically and sequentially performed inside the. To perform the test automatically in this way, set the automatic test mode to
Further, a random access memory for designating test terminals (all terminal devices may be designated) and for storing test results, that is, a random access memory, is added to the fire receiver RE.
It is sufficient to sequentially specify the terminal device from and determine whether all the results can be obtained.

[0034]

As described above, according to the present invention, a plurality of terminal devices including a controlled terminal device and a monitoring terminal device are connected to a fire receiver via a repeater, and the repeater is configured to receive various signals from the terminal device. And the fire receiver makes various judgments including fire discrimination based on the various information, and the fire receiver collects various information about the terminal device and the result of the various judgments from the repeater to perform various judgments. When it is desired to test a terminal device in a fire alarm system that manages the fire alarm, the repeater connected to the terminal device to be tested receives the test command sent from the fire receiver. At this time, a pseudo operation setting indicating that the terminal device to be tested has been operated is performed, and the content of the pseudo operation setting is returned to the fire receiver. Is sure what to do And that the operation signal given to the repeater from the terminal device can be remotely confirmed only by operation from the fire receiver side to ensure that the operation signal is reliably transmitted to the fire receiver side. is there.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a fire alarm system according to one embodiment of the present invention.

FIG. 2 is a block circuit diagram showing an internal circuit of the fire receiver RE shown in FIG.

FIG. 3 is a block circuit diagram showing an internal circuit of the repeater RP shown in FIG.

FIG. 4 is a flowchart for explaining the operation of the fire receiver shown in FIG. 2;

FIG. 5 is a flowchart for explaining the operation of the fire receiver shown in FIG. 2;

FIG. 6 is a flowchart for explaining the operation of the fire receiver shown in FIG. 2;

FIG. 7 is a flowchart for explaining the operation of the fire receiver shown in FIG. 2;

FIG. 8 is a flowchart for explaining the operation of the repeater shown in FIG. 3;

FIG. 9 is a flowchart for explaining the operation of the repeater shown in FIG. 3;

[Explanation of symbols]

RE Fire receiver RP Repeater RAM12 Storage area for database of each repeater RAM13 Storage area for operation test mode flag RAM14 Storage area for address of terminal equipment to be tested OP Operation unit SW1 Operation test switch SW2 Test release switch DP Display section LED1 Test lamp RAM22 Storage area for terminal status RAM23 Storage area for operation test mode flag ROM23 Storage area for terminal database and link table

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G08B 17/00 G08B 23/00-31/00

Claims (1)

(57) [Claims] A plurality of terminal devices including a controlled terminal device and a monitoring terminal device are connected to a fire receiver via a repeater, and the repeater collects various information from the terminal device and Performing various determinations including a fire determination based on the various information, and the fire receiver collects various information regarding the terminal device and a result of the various determinations from the repeater to perform various managements. In the fire alarm equipment, the operation test setting means provided in the fire receiver for setting all the equipments in the operation test state, and the terminal equipment desired to be tested can be designated. Terminal designation means provided in the fire receiver; and an operation test command sent to the repeater to which the terminal device designated by the terminal designation means is connected, provided in the fire receiver. Operation test command sending means, and a pseudo operation setting indicating that the designated terminal device has been operated based on the operation test command sent by the operation test command sending means. A pseudo operation setting means provided in the repeater for returning the content of the pseudo operation setting to the fire receiver in accordance with the return instruction, and sending out the return instruction to the repeater to be set by the pseudo operation setting means. A fire alarming device provided with the fire receiver for obtaining the content of the pseudo operation setting from the repeater.