JPH01134596A - Fire warning device - Google Patents

Abstract

PURPOSE:To allow a supervisor to sufficiently recognize the condition of a place and to execute a suitable processing by displaying the generating place of fire abnormality when the fire abnormality such as fire generation or the existence of the possibility of fire, etc., and displaying also the environmental information of the place. CONSTITUTION:When a time comes to execute the discrimination of a sensor level, the output of a fire phenomenon detecting part FS to be A/D converted is read through an interface IF31 and the output is compared with the fire discriminating level of a RAM33 for fire discriminating level storage. When the sensor level is the fire discriminating level or above, an address code (AC) of itself is read from a ROM32 and usage and dangerous degree are read from a RAM32 for usage and dangerous degree storage and sent from a signal sending part through an interface IF for transmission to a receiver. The spot of the fire is discriminated and the fire block and fire spot are displayed to a display part DP.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that either the fire detector itself determines the occurrence of a fire, or the receiver (or repeater) determines the occurrence of a fire based on the data collected from the fire sensor. This invention relates to a fire alarm system that determines the occurrence of a fire.

[Prior Art and Problems] -a. The following fire alarm devices are known.

■Fire alarm equipment that has fire detectors placed in various locations that output fire signals when a fire phenomenon of a predetermined level is detected, and these fire detectors are connected to a fire receiver.

■Fire sensors (analog fire detectors) that output analog signals according to the detected amount of fire phenomena are placed in various locations and connected to receivers or repeaters, and from each fire sensor on the receiver or repeater side. An analog fire alarm system that determines whether the output analog quantity signal reaches a fire discrimination standard.

In these fire alarm systems, when an abnormality such as a fire occurs, the location of the room or a map is displayed to notify the operator of the location where the abnormality has occurred. However, in the past, only the hot water area where an abnormality occurred was reported, which made it impossible to determine the status of the room, such as the purpose of the room, the level of danger, whether sprinklers were installed, etc., and this had the disadvantage of delaying fire prevention measures. . Therefore, it is preferable that the receiver be operated by a skilled operator who knows the situation in each room, but there is a drawback that it becomes difficult to understand the situation in each room if the operator is changed.

[Summary of the Invention] Accordingly, an object of the present invention is to display the hot water area where the fire abnormality occurred and provide environmental information of the location when a fire abnormality such as the occurrence of a fire or the existence of the possibility of a fire is detected. This will allow operators or monitors at the disaster prevention center to fully understand the situation at the location (use of the location, degree of danger, etc.) in the event of a fire abnormality, and will assist in future firefighting operations and evacuation guidance. It is an object of the present invention to provide a fire alarm system that assists humans in making judgments regarding the control of fire protection and smoke exhaust equipment, etc., and enables accurate measures to be taken.

According to the present invention, in order to solve the above-mentioned problems, a fire phenomenon detection means for detecting a fire phenomenon and a detection output of a fire phenomenon outputted from the fire phenomenon detection means detect the occurrence of a fire or the possibility of a fire occurrence. In the fire alarm system, the fire alarm device has a discriminating means for detecting a detection output with a characteristic and discriminating it as a fire abnormality, and a display means for displaying a location where the fire abnormality has been determined by the discriminating means, the installation of the fire phenomenon detecting means. a first means for storing environmental information of a location; and a second means for outputting the environmental information stored in the first means to the display means when the determining means determines a fire abnormality. A fire alarm device is provided.

[Function] As an example, the environmental information of the installation location can be divided into three major categories: 1) the purpose of the installation location, 2) the degree of danger of the installation location (conditions for the spread of fire), and 3) the safety level of the installation location (conditions for suppressing fire). We can separate.

1) Installation locations include offices, conference rooms, reception rooms, lobbies, libraries, stacks, sales floors, hallways, stairs, washrooms, cafeterias, kitchens, kettle rooms, parking lots,
Examples include warehouses, machine rooms, etc.

2) The degree of danger at the installation location includes the type of building materials, the type and amount of combustible materials, the type and amount of poisonous and deleterious substances,
Examples include the presence or absence of air conditioning equipment, ventilation i (number of times) (which affects smoke concentration and temperature rise), basements, floors with no windows, or rooms.

3) The safety level of the installation location includes the presence or absence of automatic fire extinguishing equipment such as a splinter head, the presence or absence of a fire hydrant (easiness of extinguishing a fire), and the presence or absence of fire prevention devices such as fire doors and fire walls (preventing the spread of fire). ), the presence or absence of smoke prevention devices such as smoke dampers and smoke prevention sagging walls (prevention of f!1 diffusion), etc.

A first means for storing part or all of the environmental information of the installation location of such a fire sensor or fire detector is provided in one or both of the fire sensor and the repeater or receiver to which this human disaster sensor is connected. , and a fire detector or a fire detector and a receiver.

'In this way, by providing the first means for storing environmental information, and by displaying that environmental information together with the hot water area where an abnormality occurs when a fire occurs, it is possible to display the environmental information at the hot water place where an abnormality has occurred. Judgment assistance is of great help in fire prevention measures.

When the first means for storing environmental information includes an environmental information setting means, a storing means, and an environmental information collecting means for storing the environmental information set in the environmental information setting means in the storing means. A possible configuration is to arrange each of them as follows.

a) In the case of a fire detector, an environmental condition setting switch such as a dip switch is provided on the detector main body or the base to which the main body is attached, and this setting switch is used as an environmental information storage means.

b) In a) above, the sensor body is further provided with a storage section such as a RAM for storing the setting contents of the setting switch, and the storage section is used as the storage means of the first means. .

C) An environmental condition setting switch is provided as an environmental information setting means on the main body or base of the fire sensor (analog fire detector), and the settings of the environmental information setting means are stored in the receiver or repeater that performs fire discrimination. and environmental information collection means for collecting environmental information from each fire sensor and storing it in the storage means.

d) Store the setting means (dip switch, etc.) for the environmental information of each fire sensor, or the setting means (10 key, etc.) and the environmental information input by the setting means in the fire detection device or receiver. A storage means is provided.

e) An environmental condition setting switch is provided on the main body or base of the fire sensor, or a setting switch and a memory means are provided;
A fire sensor is designed to send its own environmental information to a repeater or receiver each time it sends out an analog signal of a fire phenomenon, or when it sends out an analog signal that exceeds a predetermined level.

[Examples] Hereinafter, preferred embodiments of the present invention will be described using the accompanying drawings. In FIG. 1, the above C) is shown as a preferred embodiment.
However, the present invention is intended to include all the configurations a) to e) above.

In the figure, a plurality of fire sensors (analog fire alarms) SE, -SEn are shown connected to the receiver RE.

Each fire sensor SE, ~SEn has a microprocessor C
PU1 is provided, and each microprocessor CPU
I shows the memory of Akihiro and various devices connected via interfaces. That is, first of all, the interface ■F11 has analog/digital (
A fire phenomenon detection section FS is connected via an A/D converter AD.

Although not shown, the fire phenomenon detection unit FS includes a detection unit that detects fire phenomena such as heat, smoke, flame, or gas, and an amplifier;
It consists of a sampling/hold circuit, etc.
The analog signal output from the fire phenomenon detection unit FS is A/D.
It is converted into a digital signal by the converter AD and sent to the microprocessor CPUI via the interface IFII.
incorporated into a microprocessor system containing

The usage setting switch DIPI connected via the interface IF12 is a dip switch, and the usage of the installation location of the fire sensor is artificially set by this dip switch.

Further, the risk level setting switch DIP2 connected via the interface 13 is also a dip switch,
This dip switch artificially sets the degree of danger at the location where the fire sensor is installed.

Finally, a transmitter/receiver unit, ie, a modem MODI, is shown connected via the interface IF14.

RoMll is a read-only memory for storing programs shown in flowchart 1 in FIG. 3, which will be described later.
The ROM 12 is a read-only memory for storing self-addresses, the RAM 11 is a working random access memory as a working area, and the RAM 12 is
This is a random access memory for storing usage and risk level for storing the usage set by the usage setting switch DIPI and the risk level set by the danger level setting switch DIP2.

The reception 1iiRE is also shown to be provided with a microprocessor CPU2 to which various memories, devices, etc. are connected. That is, the ROM 21 is a read-only memory for storing the program shown in the flowchart in FIG. Leads for address maps that memorize districts.
The ROM 23 is a read-only memory for storing the usage/operation level conversion table, the ROM 24 is a read-only memory for storing the danger level/correction coefficient conversion table, and the RAM 21 is a read-only memory for storing the conversion table for use/operation level. Working random access memory as an area,
The RAM 22 is a random access memory for storing the purpose of each installation location of the fire sensors SE, ~SEn,
The RAM 23 is a random access memory for storing the degree of danger of each installation location of the fire sensors SE+~SEn, and the RAM 24 is a random access memory for storing fire discrimination levels for storing each fire discrimination level for the fire sensors SEI~SEn. - Access memory.

Also, a transmitting/receiving unit, that is, a modem M O, D 2 is connected via an interface IF21, a display unit consisting of a CRT and/or a display, etc. is connected via an interface IF22, and a display unit consisting of a CRT and/or a display is connected via an interface IF22. The operating unit OP is shown connected.

The operation of the fire alarm system shown in FIG. 1 will be explained using FIGS. 2 and 3.

Figures 2 (1) and (2) are for explaining the operation of the receiver RE, and Figure 2 (1) shows the fire discrimination criteria for each fire sensor when the system starts up, such as when the power is turned on. It shows the process of collecting unique environmental information data from each fire sensor in order to set up the fire sensor. Further, FIG. 2 (2) shows the process of determining the sensor levels sent from each fire sensor every moment based on the fire discrimination criteria set in FIG. 2 (1).

In FIG. 2 (1), after performing the initial settings (step 201), the address map RO
The first sensor address stored in the sensor address map of M22 is read (step 202). Next, an environment information return command is sent to the sensor at the address just read (step 203). The environment information return command adds the environment information return command to the sensor address, and sends the modem MOD from the interface IF21.
2. In this embodiment, the environmental information includes usage S+ and risk level S2 of the installation location. If there is a return from the corresponding sensor by sending the environmental information return command (YES in step 204, that is, "
Yes”), Application S.

The sensor data representing the degree of danger S2 is stored in the storage location for the sensor in the random access memory RAM 22 for storing the purpose, and the sensor data representing the degree of danger S2 is stored in the random access memory RAM 2 for storing the degree of danger.
No. 3 is stored in the storage location for the sensor (step 205).

Next, the operation level corresponding to the application data written in the RAM 22 is read from the application/operation level conversion table stored in the ROM 23 and transferred to the work RAM II.
from the risk/correction coefficient conversion table stored in the ROM 24.
The correction coefficient corresponding to the risk data written in is read out and stored in the register L2 in the working RAM 11 (step 206).

When the operation level and the correction coefficient value are stored in the registers L1 and L2, the product L3 of these two is calculated (step 207), and the fire sensor in the RAM 24 is stored using this L3 as the fire discrimination criterion for the fire sensor. (step 208).

Next, the next sensor address in the sensor address map stored in the ROM 22 is read (step 21
0), steps 203 to 208 as described above.
When the above operations are repeated and the fire discrimination criteria for all sensors are stored in the RAM 24 (YES in step 209), the process moves to the fire discrimination operation shown in the flowchart of FIG. 2 (2).

In Figure 2 (2), in order to poll each fire sensor in turn and read the sensor level, first the ROM
Read the first sensor address stored in the sensor address map in 22 (step 211), then:
A sensor level return command is sent to the sensor at the address just read through the interface IF21 by adding the sensor address (step 212).
.

If data representing the sensor level S is returned from the corresponding sensor (YES in step 213), the fire discrimination level L corresponding to that sensor address is sent to RA.
The sensor data representing the returned sensor level S is read from M24 (step 214) and compared with the fire discrimination level L (step 215).

If sensor level S is fire discrimination level L.

If the above is the case (YES in step 215), it is determined that there is an abnormality, that is, a fire, and the fire area is determined and output to the display unit DP via the interface IF 22 (step 216), and the sensor address is stored from the RAM 22 and RAM 23. The purpose S1 and the degree of risk S2 corresponding to the above are read respectively, and their contents are similarly output to the display section DP (step 217).

Similarly, the next sensor address in the ROM 22 is read (step 219), a sensor level return command is sent (step 212), and the returned sensor level is compared with the fire discrimination level to determine whether or not it is abnormal. A determination is made (step 215), and when the processing for all sensors is completed (step 218: YES), the process returns to the first sensor address in the ROM 22 (step 211), and the same processing is repeated.

FIG. 3 shows the fire sensor SE t~S shown in FIG.
This is to explain each operation of En, and after performing so-called initial settings such as clearing each interface and random access memory (step 301
), the contents of the usage setting dip switch DIPI and the danger level setting dip switch DIP2 are stored in the usage/risk storage RAM as usage s1 and danger level S2, respectively.
12 (step 302>).

When the purpose SI and the risk level S2 are prepared in the RAM 12, it starts to determine whether the address signal transmitted from the receiver RE is for the self-address or not. (Step 30)
(3: YES), the command sent along with the address is decoded (step 304).

If the command is a command to return the detection output, that is, the sensor level, the sensor level S from the fire phenomenon detection unit FS is read into the working RAM 11 via the interface IFII (step 3o7), and the sensor level S3 is transmitted. The data is sent to the receiving fiRE via the modem MODI by writing in the interface IF14 (step 308).

If the command is an environmental information return command, purpose S1 and risk level S
2 from R, A M 12 (step 305
), by writing them to the transmission interface IF14 and transmitting them to the receiver RE via the modem MODI (step 306).

FIG. 4 is a block circuit diagram showing a fire alarm system in which a fire detector, that is, an on-off type detector is connected to the receiving 11iRE, and corresponds to the configuration described in the operation section. . In Figures 1 to 3, the detected amount of fire phenomenon is transmitted to the receiver RE, and the receiver side determines whether there is a fire abnormality, but in Figure 4, the fire abnormality is determined on the detector side. , only the result of whether or not it is abnormal is transmitted to the receiver side as an on/off signal.

In FIG. 4, fire detectors DE, ~DEn each include a microprocessor CPU3, and each microprocessor CPU3 has an analog/digital (A/
D) A fire event detection unit FS is shown connected to receive an analog signal of a fire event via a converter AD and an interface I F 31. As described above, the fire phenomenon detection section FS generally includes a fire detection section for detecting a fire phenomenon such as heat, smoke, flame, or gas, an amplifier, a sample and hold circuit, etc., although not shown.

As in the case of the fire sensor described above, each microprocessor CPU3 has a dip switch DIPI that sets the purpose of the installation location of each fire detector, and a dip switch DIP2 that sets the degree of danger of the installation location of each fire detector. A switching circuit TX for transmitting a fire signal is connected via an interface IF54, and a read-only memory ROM31 for storing programs and a lead-only memory ROM31 for storing self-address codes are connected.
Only memory ROM32 and dip switch DI
A read-only memory ROM 33 for storing an application/operation level conversion table in which the usage of the installation location set by the PI and the fire discrimination criteria corresponding to the usage, that is, the operating level at which it should be determined as a fire, are stored. , the degree of danger of the installation location set by the dip switch DIP2, and the degree of danger that stores the correction coefficient (used to correct the operating level) corresponding to the degree of danger, and the lead for storing the correction coefficient conversion table.・Only memory ROM 34, random access memory RAM 31 for work, and usage・
Random access memory RAM 32 for storing risk levels
and a random access memory RAM 33 for storing fire discrimination standards or fire discrimination levels are shown connected. - Figure 5 shows the fire detector D shown in Figure 4.
This is a flowchart for explaining the operation of each of El to DEn, and after clearing and initializing the various interface IFs and random access memory RAM (step 501), the respective applications are cleared from the interfaces IF32 and IF53. The state of the dip switch DIPI for use, ie, the use S, and the state of the dip switch DIP,2 for the danger level, ie, the danger level S2, are read and stored in the RAM 32 for use/risk storage (
Step 502), next, the operation level L corresponding to the application S1 stored in the RAM 32 is stored in the ROM 33. At the same time as reading from the application/operation level conversion table, the correction coefficient L2 corresponding to the danger level S2 stored in the application/risk storage RAM 32 is also read from the danger/correction coefficient conversion table stored in the ROM 34 (step 503).

The fire discrimination standard or level L3 is determined by multiplying the operating level L1 by the correction coefficient L2 (step 5).
04), and stores it in the random access memory RAM 33 for storing the fire discrimination level (step 505).
.

Thereafter, when the time has come to determine the sensor level (YES at step 506), the A and D converted fire phenomenon detection unit F is sent via the interface IF51.
Read the output S, of S (step 507), and read the output S,
is compared with the fire discrimination level L3 in the RAM 33 for storing fire discrimination levels (step 508). If the sensor level S3 detects a fire and is smaller than the bell L3 (No in step 508), the next sensor level discrimination is performed. A new sensor level is read at the time (step 506) and fire monitoring continues in this manner.

If the sensor level S3 is higher than the fire discrimination level 3 (YES in step 508), then the own address code (AC) is read from the own address code storage ROM 32 (step 509), and the application・Use SL and risk level S from the risk level memory RAM 32
2 is read (step 510), and the purpose S1, risk level S2, and own address code AC are sent from the signal sending unit TX to the receiver RE via the transmission interface IF54.

Thereafter, if there is a recovery signal, the process returns to the initial monitoring state and continues the operation from step 506.

FIG. 6 is a flowchart for explaining the operation of the reception IIRE shown in FIG. YES in step 602), the fire area and fire location are determined from the received address code AC (step 603), and the fire area and fire location are displayed on the display unit DP (step 604). S1 and risk level S2 are decoded (step 605), and the usage Sl and risk level S2 are decoded.
is also displayed on the display section DP (step 606).

In the embodiments shown in FIGS. 1 and 4, the case where the fire discrimination level is the operation level has been explained, but the fire discrimination level may be other than the operation level, such as accumulation time,
Various fire discrimination calculation formulas may be used.

In addition, in the embodiment shown in Fig. 1, there is a dip on the sensor side.
Instead of providing the switches DIPI and DIP2, a setting means corresponding to these dip switches, such as a numeric keypad, is provided in the operation section OP of the receiver RE, and the setting means is used to set the RAM 22 for purpose storage and the RA for risk storage.
The purpose and risk level may be stored in each M23. In this case, those RAM22 and RA
M23 has non-volatile RA such as RAM with backup power supply
It is advantageous to use M. In addition, if the usage and risk level are not expected to change permanently, RAM2
2, instead of RAM23 and RAM32 in FIG.
ROM can also be used.

Furthermore, in the embodiment of FIG. 1, a fire sensor SE.

~ All usage data S1 and risk data S of SEn
2 is collected by the receiver RE and stored in the random access memories RAM22 and r (AM23), but when the detection output S of the fire phenomenon detection unit FS exceeds the fire discrimination level L3 In addition, the fire sensor may send the usage data S and the risk data S2 to the receiver RE and store them in the RAM 22 and RAM 23. and R
The storage capacity of AM23 can be reduced.

[Effects of the Invention] As described above, according to the present invention, when a fire abnormality is detected, environmental information of the area or point where the fire sensor or fire detector that detected the abnormality is installed is also displayed. This has the effect of helping humans judge fires and, in the event a fire actually breaks out, quickly determine whether there is any danger during firefighting activities at the scene.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing a fire alarm device according to an embodiment of the present invention, and FIGS. 2(1), (2), and 3 are:
Flowchart for explaining the operation of Fig. 1)・, 4th
5 is a block circuit diagram showing a fire alarm device according to another embodiment of the present invention, and FIGS. 5 and 6 are used to explain the operation of FIG. 4. “In Figure 1, which is a low chart, R
E is the receiver, SE, ~SEn is the fire sensor, FS is the fire phenomenon detection section, DIPI is the application setting switch, DIP2
is a switch for setting the risk level, ROM12 is a read-only memory for storing self-address, RAM12 is a random access memory for storing purpose and risk level, ROM22 is a read-only memory for address map, ROM2
3 is a read-only memory for storing application/operation level conversion tables, ROM 24 is a read-only memory for storing risk/correction coefficient conversion tables, RAM 22 is a random access memory for storing applications, and RAM 23 is for storing danger levels. Random access memory, RAM 24 is random access memory for storing fire discrimination level, DP
is the display section, OP is the operation fF part, DE, ~DEn are the fire detectors, ROM32 is the read-only memory for storing self-addresses, ROM33 is the read-only memory for storing the application/operation level conversion table, ROM34 is the read-only memory for storing the application/operation level conversion table. Degree of risk·
Read-only memory for storing correction product number conversion table,
RAM32 is a random access memory for use and risk level storage.
Memory, RAM33 is a random memory for fire discrimination level storage.
This is access memory. Map of Earth 3

Claims (5)

[Claims] (1) A fire phenomenon detection means detects a fire phenomenon, and a detection output of a fire phenomenon outputted from the fire phenomenon detection means detects a detection output that indicates a fire occurrence or a possibility of a fire occurrence and determines it as a fire abnormality. a first means for storing environmental information of a location where the fire phenomenon detection means is installed;
A fire alarm device comprising: second means for outputting environmental information stored in the first means to the display means when the discrimination means determines a fire abnormality. (2) The second means selects and outputs environmental information of the place where the fire abnormality is determined from the first means when the determining means determines the fire abnormality. The fire alarm device described in item 1. (3) The first means includes environmental information setting means for setting environmental information of the installation location of the fire phenomenon detection means;
Claim 1, comprising: storage means for storing the environmental information set by the environmental information setting means; and environmental information collection means for storing the settings of the environmental information setting means in the storage means. Fire alarm device as described in paragraph or paragraph 2. (4) The fire phenomenon detection means is incorporated in a fire sensor that is to detect a fire phenomenon, and the environment information setting means is connected to the fire sensor, and the discrimination means, the display means, the storage means, the environment The information collecting means and the second means are provided in a receiver or a repeater,
Thereby, the environmental information collecting means collects the setting contents of the environmental information setting means connected to the fire sensor, stores it in the storage means provided in the receiver or repeater, and When the determining means provided in the receiver or repeater determines a fire abnormality based on the detection output of the fire phenomenon detecting means collected from the sensor, the second means stores the information stored in the storage means. 4. The fire alarm device according to claim 3, wherein the environmental information is output to the display means. (5) The fire phenomenon detection means, the discrimination means, the environmental information setting means, the storage means, and the second means are provided in a fire detector that is to detect a fire phenomenon, and the display means receives installed on the machine or repeater,
Thereby, when the discrimination means discriminates a fire abnormality, the second means outputs the environmental information stored in the storage means together with the discrimination result to the display means of the receiver or repeater. A fire alarm device according to claim 3.