JPH0823912B2 - Intelligent fire alarm system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to improvements in intelligent self-warning information systems.

[Background technology]

This kind of intelligent self-warning system sends a detection signal according to the temperature and smoke density detected by the fire detector to the fire receiver, and the fire receiver sets this detection signal in advance for each fire detector. Compared with the alarm data, when this detection signal exceeds the level of the alarm data, the alarm means is activated to notify the fire.However, in actual use, in the kitchen or cigarette smoke The detection signals of the detectors installed in many rooms often reach the warning level instead of the actual fire, and the problem of false alarms cannot be ignored.

As a means for this, in a normal fire alarm system,
Although fire detectors with different sensitivities and types are selected depending on the installation location, even in some buildings, the usage status of the installation location cannot be predicted and the countermeasures against false alarms are not sufficient.

[Object of the Invention]

The present invention has been developed in view of the above circumstances, and provides an intelligent self-ignition information system having a learning function capable of changing and setting alerting data according to usage conditions of a building.

[Disclosure of Invention]

The present invention proposed to achieve the above object is to
Fire detectors that output detection signals according to smoke concentration, main storage means that stores the alert level for fire determination set for each fire detector as alert data, and the detection signal from the fire detector A comparison and determination means for determining whether or not the fire level has been reached, a temporary storage means for temporarily storing the detection signal of the fire detector when the detection signal output from the fire detector exceeds the warning level, An intelligent self-warning system constituted by combining a data change setting switch and a fire receiver having a rewriting means for updating the warning data of the fire detector stored in the main storage means,
When the detection signal output from the fire detector exceeds a preset alarm level, the alarm means is driven and at the same time the detection signal is stored as alarm data in the temporary storage means, and the fire at that time is detected. When the notification of detection is a false alarm due to an artificial cause, the data obtained by adding the correction data to the alarm data stored in the temporary storage means by operating the data change setting switch is newly generated. It is characterized in that the rewriting means is operated as the report data so as to be sequentially stored and updated in the main storage means.

Further, according to the present invention as proposed in claim 2, a fire detector that has a sensitivity changing function and outputs a detection signal according to temperature and smoke density, and a surrounding environment where the fire detector is installed are There is a heat ray sensor that changes the sensitivity of the fire detector depending on the number of fire detectors and the fire alarm level that is set for each fire detector and is stored as the alarm data. Main memory means, comparison / determination means for determining whether or not the detection signal from the fire detector has reached the alarm level, when the detection signal output from the fire sensor exceeds the alarm level, A combination of a temporary storage means for temporarily storing a detection signal, a data change setting switch, and a fire receiver having a rewriting means for updating the alarm detector data stored in the main storage means. The above feeling of fire When the detection signal output from the device exceeds a preset warning level, the alarm means is driven and at the same time the detection signal is stored in the above-mentioned temporary storage means as warning data, and the fire detection at that time is issued. When the report is a false report due to an artificial cause, the data obtained by adding the correction data to the report data stored in the temporary storage means by operating the data change setting switch is used as new report data. It is characterized in that the rewriting means is operated to sequentially store and update the main storage means.

Further, in the present invention according to claim 2, a daylight sensor capable of discriminating day and night is used in place of the heat ray sensor, and when the daylight sensor discriminates day and night, the fire detector is used. The impression of may be automatically changed.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the basic configuration of the system of the present invention.

In the figure, 1 ... is a fire detector that detects heat, smoke, etc., and the temperature of the installation location according to the monitoring lines # 1 to #n,
The detection signal according to the smoke density is output. This detection signal is output from the sensor 1 ... In the form of an analog signal,
It is converted to a digital multiplex signal by the relays 1a provided between the receiver 2 and the digital signal and sent to the receiver 2 side.

The receiver 2 has a multiplex transmission unit 25 for processing such a multiplex signal, and further comprises a main storage means 21, a comparison / discrimination circuit 22, a temporary storage means 23, which constitutes an essential part of the present invention.
A data rewriting means 24 is provided.

Each sensor 1 taken out by the multiplex transmission unit 25
The detection signal of ... Is distinguished for each sensor by the comparison and determination means 22, and is compared with the alarm data stored in advance and stored in the main storage means 21. When the comparison / determination means 22 determines that the detection signal exceeds the level of the alarm data, the alarm means 3 is activated and the system outputs a fire alarm. In the present invention, at the same time, the detection signals of the sensors 1 ... Are stored in the temporary storage means 23 as the alarm data. On the other hand, the data rewriting means 24
As will be described later, when a data update signal is received by operating the data change setting switch, update data obtained by adding preset correction data to the alarm data stored in the temporary storage means 23 is newly notified. The data is stored and updated in the main storage means 21 as data.

FIG. 2 is a system diagram showing the operation procedure of the system of the present invention.

In the monitoring state (step 100), data is exchanged between the sensor 1 ... And the receiver 2 by a so-called polling method. When the receiver 2 takes in the fire detection signal from the detector 1 ...
At 22, the alarm data stored in the main storage means 21 that is preset according to the sensor 1 ... Is compared (step 101). When the comparison determination means 22 determines that the detection signal exceeds the level of the alarm data, the alarm means 3 is activated to generate an alarm signal (step 102). At this time, the detection signal is stored in the temporary storage means 23. The alert data is updated and stored (103). The detection signal at this time is
It is the maximum level of sensor 1 ...

In this way, when the detection signal of the sensor 1 ... Reaches the alarm level and the alarm means 3 is activated, the supervisor goes to the installation location of the sensor 1 ... to confirm the actual fire. (Step 104), and if it is a real fire, the necessary fire processing is performed (Step 105 → 114). That is, the disaster prevention equipment is operated and the fire department is notified. On the other hand, as a result of the site confirmation, when it is determined that the notification of the sensors 1 ... Is a malfunction (step 106), it is confirmed whether or not this notification is accidentally generated (step 106). 107), and if it is an accidental one, operate the recovery switch of the self-ignition alarm system to recover the system (steps 108 → 110 → 111).
However, if it is determined that the sensor 1 ... Is not an accidental alarm but a malfunction due to an artificial cause, the data change setting switch is operated (step 10).
9). Whether or not the notification of the sensor 1 ... is accidental can be easily confirmed by confirming that the site where the sensor 1 ... is installed is filled with cigarette smoke or the like. .

Then, when the monitor operates the setting switch, a data update signal is sent to the receiver 2 side, and the data rewriting means 24 uses this signal to detect the detection signal of the sensor 1 ... The data obtained by adding the set correction data is further updated and stored in a predetermined storage area in the main storage device 21 as new alert data (step 109).
→ 110 → 112 → 113).

In this way, the detection signals sent from the detectors 1 ... To the receiver 2 are successively compared in the comparison / determination means 22, and the alarm of the detectors 1 ... , If the notification is due to an artificial cause, the notification level is gradually increased and the sensor 1
The alerting data of ... Is set to the optimum level according to the monitoring area by the so-called learning function.

In the above example, the self-fire alarm system was configured to use a normal fire detector whose sensitivity cannot be changed automatically, but a detector with a function that can automatically change the sensitivity is used. If the system is constructed by combining it with other environmental sensors, the following judgment function can be realized, and an intelligent self-warning system that matches the actual situation can be constructed.

(I) A heat ray sensor that can detect a large number of people is used as an environmental sensor, and the signal from this heat ray sensor is discriminated. Make it higher

(Ii) A daylight sensor is used as an environmental sensor, and the sensitivity of the detector is reduced during the daytime and switched to a higher sensitivity at night. In these cases, the sensor is placed in low sensitivity with a high alarm level or high sensitivity with a low alarm level, depending on the installed environmental conditions, and the alarm level is updated by the learning function described above. It is controlled to eliminate the cause of artificial misinformation.

Next, FIG. 3 is preferably used when conducting a continuity test of each line of a self-fired alarm system having a backup line.

Generally, in a fire alarm system, a spare line is provided in anticipation of the addition of a monitoring area, and it is customary to perform a line disconnection test on the spare line. If such a protection line is not provided with a terminator, it is displayed during the test that a trouble has occurred in the protection line.

The system proposed here, as shown in FIG.
When performing a disconnection test of a self-warning system having a protection line #m to which a terminator Ω is not connected, it is possible to easily find a trouble in an operating line.

To explain the outline, prior to the line continuity test,
Restore the system (step 200). This recovery is
It is performed to return the system CPU to the initial state and to start the continuity test program, and then clear the contents of the memory storing the line data in which the trouble occurred (step
201). In step 202, a continuity test is performed, which is conducted across all lines monitored by the system.

In step 203, it is judged whether or not there is a trouble in all the lines tested, and if there is no trouble, the process proceeds to step 204, and the normal monitoring mode is set.

However, if a trouble is found in step 203, the troubled line code is stored in the memory as trouble data, and the troubled line is displayed in step 206. When a trouble occurs in the line, the system informs the trouble occurrence indicator lamp by blinking, and accordingly, the trouble switch is displayed by operating the confirmation switch or the like. This display is done by displaying the code of the troubled line on the LED or CRT, but when troubles occur on multiple lines, they are displayed one after another by the feed operation. In step 207, it is judged whether or not the line in which the trouble has occurred includes the protection line. If the line includes the protection line, the trouble line display erasing switch is operated so that the protection line is not displayed ( If the step 209) does not include the backup line, the line in which the trouble has been caused by the site investigation is repaired (steps 210 and 211). By performing such a pre-setting, even if a trouble is found in the backup line during the continuity test thereafter, the display does not appear, so that the trouble can be easily found in the working line. Further, the trouble line is not automatically displayed, but since it is stored in the memory, it can be displayed and confirmed at any time by operating the confirmation switch.

When conducting a continuity test of a line by such a method, no trouble is displayed during the test for the line to which the terminator is not connected. Therefore, even if a line that does not connect the terminator is included in the backup line, , Only trouble display of working line is surely displayed.

〔The invention's effect〕

As understood from the above description, according to the present invention,
Since the operating level of the sensor is set according to the installation location, it is possible to realize a highly reliable intelligent self-warning system with little artificial alarm.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of the present invention, FIG. 2 is a flow chart for explaining the operation of the present invention, FIG. 3 is a schematic flow chart showing an operation procedure of an improved test method carried out during a continuity test, and FIG. Shows a schematic configuration diagram of a self-warning system with a backup line. (Explanation of symbols) 1 ... Fire detector 2 ... Receiver 21 ... Main storage 22 ... Comparison determination 23 ... Temporary storage 24 ... Rewriting 3 ... Alarm

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Nozaka 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Osamu Tanaka, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (56) References JP-A-57-141791 (JP, A) JP-A-59-201193 (JP, A)

Claims (3)

[Claims] 1. A fire detector that outputs a detection signal according to temperature and smoke concentration, a main storage means that stores a warning level for each fire detector for fire discrimination, as warning data, and a fire. A comparison and determination means for determining whether the detection signal from the detector has reached the warning level, or temporarily when the detection signal output from the fire sensor exceeds the warning level Intelligent self-ignition information composed by combining a temporary storage means for storing in the above, a data change setting switch, and a fire receiver having a rewriting means for updating the alarm detector data stored in the main storage means. In the system, when the detection signal output from the fire detector exceeds a preset warning level, the alarm means is driven, and at the same time, the detection signal is used as warning data to When the alarm for fire detection at that time is a false alarm due to an artificial cause, the correction data is added to the alarm data stored in the temporary memory by operating the data change setting switch. An intelligent self-warning information system characterized in that the data obtained by the above is used as new alarm data and the rewriting means is operated to sequentially store and update in the main storage means. 2. A fire detector that has a sensitivity changing function and outputs a detection signal according to temperature and smoke density, and detects the surrounding environment where the fire detector is installed according to the number of people. Then, a heat ray sensor that changes the sensitivity of the fire detector, and a main storage means that stores the alert level for fire determination set for each fire detector as alert data,
A comparison / determination means for determining whether the detection signal from the fire detector has reached the alarm level, or temporarily when the detection signal output from the fire detector exceeds the alarm level For temporarily storing the data, a data change setting switch, and a fire receiver having a rewriting means for updating the alarm data of the fire detector stored in the main memory means are combined. When the detection signal output from the device exceeds a preset warning level, the alarm means is driven and at the same time the detection signal is stored in the above-mentioned temporary storage means as warning data, and the fire detection at that time is issued. If the report is a false report due to an artificial cause, the correction data is added to the report data stored in the temporary storage means by operating the data change setting switch. An intelligent self-warning system, characterized in that the rewriting means is actuated as new alarm data to cause the main memory means to sequentially store and update the data. 3. A daylight sensor capable of distinguishing between day and night is used instead of the heat ray sensor, and when the daylight sensor distinguishes between day and night, the feeling of the fire detector is automatically changed. The intelligent self-warming system according to claim (2).