JP2000099845A - Automatic fire alarm equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable only an inspection alarm operator who performs a test to operate the fire sensor to inspect a correlation between the fire alarm and a sensor line even if there are many sensor lines. SOLUTION: This automatic fire alarm equipment is equipped with a fire receiver which has plural sensor lines L1...Ln with serial numbers attached to which a fire sensor S is connected, can ring an acoustic device B and confirm the sensor line which outputs a signal when an alarm signal of a fire sensor is received by way of the sensor line in normal mode, can recognize the sensor line which outputs a signal by giving a change in ringing of the acoustic device in inspection mode, and where an inspection notification operator of the fire alarm can advance an inspection of a correlation between the fire sensor and the sensor line even if there is no inspection operator on a fire receiver 1 side. This fire alarm equipment is equipped with a number difference ringing means 5 which gives a change in ringing of the acoustic device on the basis of a number difference between a sensor line number that is inspection alarmed last time and the sensor line number that is inspection alarmed this time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic fire alarm system devised so that the correspondence between a fire detector and a detector line can be easily checked.

[0002]

2. Description of the Related Art In a building, an automatic fire alarm system equipped with a fire receiver is installed in order to detect an emergency fire early. The fire receiver has a plurality of detector lines. In a normal mode, when a fire detector alarm signal is received via the detector line, the sound device is sounded and the emitted detector line is displayed. Has been.

[0003] By the way, even if the fire receiver receives the alarm signal of the fire sensor via the sensor line, sounds the sound device, and reports the occurrence of a fire, the fire detector and the sensor line are connected. If the correspondence is not correctly connected as shown in the disaster prevention equipment specification drawing, the correct fire occurrence location cannot be identified even if the fired detector line is checked with the fire receiver. Therefore, before the completion of the building, all the fire detectors will be burned one by one to check whether the correspondence between the fire detectors and the detector lines is as specified in the disaster prevention equipment specification drawing. .

[0004] However, in order to perform such an inspection work, an inspection alarm worker who goes to the site and performs a work of burning the fire detector, and a worker who stands by the fire receiver, fires the fire receiver. Once the alarm is issued, two people are needed: a fire alarm receiver, which checks the sensor line that fired the alarm, and a worker who communicates with the worker using a transceiver. It takes time and the cost of inspection work is considerable.

Therefore, a conventional P-type second class receiver is provided with a switch for switching between a normal mode and an inspection mode. If the switch is set to the inspection mode, for example, an inspection alarm is issued. If the detector line number is "3", the P-type second class receiver will collectively call up the district bells corresponding to the sound equipment installed on each floor, "Jirijiri", "Jirijiri", "Jirijiri" Sounds three times and, for example, if the sensor line number that has been checked and issued is “5”, “Jirijiri”, “Jirijiri”, “Jirijiri”, “Jirijiri”,
It is designed to beep five times, and by counting the number of times the district bell rings, it is possible to recognize the number of the detector line that triggered the alarm, and go to the site to broke the fire detector. It was devised so that only the operator who performed the inspection and alarm could perform the inspection work to determine whether the correspondence between the fire detector and the detector line was as specified in the disaster prevention equipment specification drawing.

[0006]

However, in the above-mentioned P-type second class receiver, the number of detector lines is at most about five, and therefore, the number of times corresponding to the number of the sensor line that issued the alarm is required. Even when the district bell is intermittently ringing at the same time, only the inspection and reporting workers who go to the site and broke the fire detector, the correspondence between the fire detector and the detector line is the disaster prevention equipment specification drawing Although the inspection work was performed to check whether or not
In the case of a P-type first-class receiver that is close to the line, if the number of the detector line that issues a notification becomes higher, it is difficult to count the number of times the district bell rings, and it is not practical. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic fire alarm having a fire receiver such as a P-type first-class receiver having a large number of detector lines. Even in the case of equipment, only the fire alarm who fires the fire detector performs inspection work to determine whether the correspondence between the fire detector and the detector line is as specified in the disaster prevention equipment specification drawing. To provide an excellent automatic fire alarm system.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a plurality of serially numbered detector lines to which fire detectors are connected are provided. In the normal mode, when the alarm signal of the fire detector is received via the detector line, the sound device is sounded and the alarmed detector line can be confirmed, and in the inspection mode, the sound of the sound device has a change. The fire alarm can be recognized by detecting the fire alarm, and the fire alarm check alarm operator can check the correspondence between the fire alarm and the sensor line even if there is no inspection operator on the fire receiver side. In an automatic fire alarm system equipped with a fire receiver capable of proceeding the inspection of the sound, the sounding of the sound device is performed based on the difference between the sensor line number inspected and issued last time and the sensor line number inspected and issued this time. To change the number And wherein the digit.

According to a second aspect of the present invention, the number difference sounding means sounds the error of the sound device if the number difference is negative.

According to a third aspect of the present invention, the number difference sounding means sounds the sound device as an error if the number difference is negative or exceeds a predetermined plus value. If the number difference is equal to or less than a predetermined positive value, the sound device is intermittently sounded the number of times corresponding to the value of the number difference.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic fire alarm system according to the present invention will be described below in detail with reference to FIGS. FIG. 1 is a wiring diagram showing an automatic fire alarm system, FIG. 2 is a flowchart showing the operation of the automatic fire alarm system, and FIG. 3 is an operation explanatory diagram showing an intermittent sound operation given to the sound device by the number difference sound means.

As shown in FIG. 1, the automatic fire alarm system includes a fire receiver 1, fire detectors S,... S, and district bells B,. . Incidentally, in FIG. 1, T is the broiling tester, broiling tester T, the container T ₂ broiled on the tip of holding up rod T ₁ is attached.

The fire receiver 1 is provided in a section of a building.
It is installed in disaster prevention centers, etc., and has multiple district lights 2
, A plurality of district windows 3, a mode changeover switch 4, and a number
A number ringing driving unit 5 corresponding to the ringing means.
Is done. Fire detector 1 has detector line L_1,... L_nAnd the earth
Ward sound line P_1,... P_nAre connected. Sensor line L _1,
... L_nAre connected to the fire detectors S,.
It is. District sound circuit P _1,... P_nIn district B
Connected respectively.

The district lights 2 are provided for each of the detector lines L _1, ..., L _n . For example, if a fire detector S connected to the detector lines L _n issues an alarm, the district lights corresponding to the detector lines L _n 2 lights up. District window 3, sensor lines L _1, ... L _n are provided for each, sensor lines L _n connected to the fire sensor S, ...
For example, "3rd floor south meeting room" corresponding to the monitoring area of S,
A name label such as "3rd floor east heating room" is attached.

The mode changeover switch 4 is used for the fire receiver 1
Is switched between the normal mode and the inspection mode. Fire receiver 1 is internally provided with a microcomputer, when the mode changeover switch 4 is set to the normal mode, sensor lines L _1, ... alarm signal fire detector S through either L _n Is received, the own sound device is sounded, the district lights 2 corresponding to the detector lines L _1, ..., L _n that have received the alarm signal are turned on, and the predetermined district bell B is sounded. I do. In addition, when the mode changeover switch 4 is set to the inspection mode, the fire receiver 1 stops the operation in the normal mode and enables the number difference ringing drive unit 5.

Hereinafter, using the flowchart of FIG.
The operation of the automatic fire alarm system including the fire receiver 1 set in the inspection mode will be described. The fire receiver 1 set to the inspection mode monitors the inspection alert of the fire detector S (step 100), and upon receiving the inspection alert, the internal microcomputer detects the detector lines L1 _, ... _Ln. searching whether a reception from any (step 105), stores the numerical value n ₁ of sensor line number n ₁ retrieved as a number m ₁ in the memory M ₁ (step 110), number difference ringing driver From 5, an inspection start sound drive signal is output to the district bells B,... B all at once (step 11).
5). The inspection start sound drive signal sounds, for example, the district bells B,... B simultaneously and continuously for 6 seconds.

Next, after executing the waiting time of W seconds (step 120), the fire receiver 1 monitors the fire alarm S again (step 125), and receives the fire alarm. then sensor lines L ₁ by the _{microcomputer,} ... searches whether the reception from one of the L _n (step 130), the memory M numerical n ₂ of sensor line number n ₂ of the search as a number m ₂ stored in the ₂ (step 135), then the numerical stored in the memory M ₁ m
_A number difference Q = (m ₂ −m ₁ ) is calculated from ₁ and the numerical value m ₂ stored in the memory M ₂ (step 140).
Note that the waiting time W in step 120 is set to, for example, 10 seconds, which is a time sufficient for the fire detector S that has once issued a warning to recover again.

The fire receiver 1 determines whether or not the number difference Q calculated in step 140 satisfies the condition that R ≧ Q and Q ≧ 0 with respect to a predetermined plus predetermined value R. (Step 145), and if satisfied, the number difference ring drive unit 5 outputs a number difference ring drive signal of the number difference Q to the district bells B,... B all at once (step 15).
0) If it is not satisfied, the error sound drive signal is simultaneously output from the number difference sound drive unit 5 to the district bells B,... B (step 160). Normally, the predetermined value R is set to about R = 5, which can be definitely counted.

The number difference ringing drive signal of the number difference Q, for example, sounds the district bells B,... B at the same time as the number of cycles equal to the number difference Q, with one cycle of ringing for one second as one cycle. The error sound drive signal is, for example, a district bell B,.
B sounds all at once for 3 seconds. And fire receiver 1
A memory M ₁ a number m ₂ which is stored in the memory M ₂
Is stored as a numerical value m ₁ (step 155), the step 120 is executed again.

Therefore, in the automatic fire alarm system provided with the fire receiver 1 configured as described above, the operator who fires the fire detector S needs to switch the mode of the fire receiver 1. switches the switch 4 to the inspection mode, first finds out the fire detector S that is connected to the lower sensor lines L ₁ most sensor line number on the basis of the disaster prevention equipment specifications drawings, the matched-out fire detector S Roasting tester T
Broil and check and alert.

Then, the operator who fires and fires the fire detector performs a fire test on the remaining fire detectors S,... S connected to the detector line L ₁ having the lowest detector line number. Inspection alerts will be implemented sequentially based on the disaster prevention equipment specification drawings. When all the fire alarms S,... S connected to the sensor line L ₁ having the lowest sensor line number have been checked and issued, the fire sensor S is connected to the sensor line L ₂ having the next lowest sensor line number. The fire alarm S,... S for the fire alarm is fired sequentially based on the disaster prevention equipment specification drawing.

The inspection and alarming worker who performs the work of burning the fire detector sequentially performs the inspection and alarming based on the disaster prevention equipment specification drawing, and counts the ringing length and the number of ringing of the district bell B. If it is confirmed that the fire prevention equipment is correctly constructed as shown in the drawing, each time the detector line L _n connected to the fire detector S to be roasted is raised, the district bell B, ... B should be able to complete all the inspection work only once at once for one second.

Then, during the inspection work, the district bell B,.
Despite but should that or error ringing simultaneously, the sensor lines L _n are raised repeatedly No.1, or not ringing, or, if 2 or or 5 cycles ringing caused some construction mistakes Means that.

[0024] That is, in the fire alarm system comprising a fire receiver 1 configured as described above, correspondence between the sensor lines L _n and the fire detector S is turned as disaster prevention equipment specifications drawings The inspection work of whether or not there is a fire alarm S can be performed alone by only the inspection alarming worker who performs the broiling work of the fire detector S.

For example, in the automatic fire alarm system equipped with the fire receiver 1 as described above, after setting the fire receiver 1 in the inspection mode, one line is sequentially executed by a burning test.
1 line → 1 line → 1 line → 2 lines → 2 lines → 2 lines → 2
Assuming that the fire detector S is fired in the order of line → 4 lines → 4 lines → 3 lines → 4 lines →..., As shown in FIG. Ringing is performed, and the alarm is not performed in the alarm time series "2" to "4". In the alarm time series "5", sounding is performed for one second and stopping for one second is performed for one cycle, and the alarm time series "6" to "8". Does not sound, the alarm time series "9" sounds for 1 second and stops for 1 second for 2 cycles,
The alarm time series "10" does not sound and the alarm time series "11"
In this case, an error sound is sounded for 3 seconds, and in the alarm time series "12", sounding is sounded for 1 second and stopped for 1 second for one cycle.

It should be noted that the present invention is not limited to the above-described embodiment, and the change of the sound of the acoustic device may be not only the discrimination based on the length of the sound time but also the sound color or the like. Various modifications can be made within the range described in the range.

[0027]

According to the first aspect of the present invention, even in an automatic fire alarm system equipped with a fire receiver having a large number of detector lines, only one inspection / reporting operator who performs the work of burning the fire detector. Only by this, it is possible to provide an excellent automatic fire alarm system capable of performing an inspection work to check whether the correspondence between the fire detector and the detector line is as specified in the disaster prevention equipment specification drawing.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to easily recognize whether the number of the issued detector line has increased or decreased from the sound of the sound device. This makes it possible to provide an excellent automatic fire alarm system that is easy to use for inspections.

According to the third aspect of the present invention, in addition to the effect of the first aspect, the worker who fires the fire detector may make a mistake in the number of sounds of the sound device. It is possible to reliably perform the inspection work without checking whether the correspondence between the fire detector and the detector line is as specified in the disaster prevention equipment specification drawing,
This has the effect of providing excellent automatic fire alarm equipment.

[Brief description of the drawings]

FIG. 1 is a wiring diagram showing an automatic fire alarm system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the automatic fire alarm system.

FIG. 3 is an operation explanatory diagram showing an intermittent sounding operation given to an audio device by a number difference sounding means of the automatic fire alarm system.

[Explanation of symbols]

 1 Fire receiver 5 Number difference ringing means B Sound device L Detector line N Detector line number S Fire detector Q Number difference R Predetermined value of plus

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C087 AA03 AA33 AA35 BB74 CC08 CC27 DD04 EE05 EE08 EE12 FF01 GG09 GG11 GG18 GG30 GG86 5G405 AA01 AA06 AA08 AB01 CA12 CA13 CA23 CA55 DA21 DA22 EA55

Claims (3)

[Claims] 1. A fire alarm device comprising a plurality of serially numbered detector lines to which a fire detector is connected. In a normal mode, when a fire detector alarm signal is received via the detector lines, the sound device sounds. In addition, in the inspection mode, the sounding of the sound device can be changed to recognize the sensor line that has issued the inspection. In an automatic fire alarm system equipped with a fire receiver that allows the inspection of the correspondence between fire detectors and detector lines even if there is no inspection worker on the machine side, the detector line that was last inspected and issued An automatic fire alarm system comprising a number difference sounding means for changing the sounding of the sound device based on the number difference between the number and the sensor line number which has been checked and issued this time. 2. The automatic fire alarm system according to claim 1, wherein said number difference sounding means sounds the sound device if said number difference is negative. 3. The number difference sounding means, if the number difference is negative or exceeds a plus predetermined value, sounds the sound device as an error, and the number difference is a plus predetermined value. 2. The automatic fire alarm system according to claim 1, wherein the sound device intermittently sounds the number of times of the value of the number difference if it is below.