JPS59208692A - fire alarm device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

The present invention determines a fire by periodically setting an alarm reference value for determining a fire from the average value of analog fire detection data,
This relates to an analog fire detection system that changes the alarm reference value setting cycle according to changes in air pressure in order to prevent false alarms due to changes in air pressure. The invention device of the present invention is equipped with a fire detector (゛)

[]Proposed a so-called 1G fire alarm system that transmits 5 signals to an interview receiver to determine the presence of a fire. No.), this knob 1] fire alarm system, alarm the analog fire data multiple times (1c1 etc. fixed period 11), calculate the average value, and calculate the average value. Add some candy,
However, when using an analog fire detector, for example, an ionization type smoke detector (Jl, smoke and insect Even if there was no intrusion, there was a phenomenon in which a detection value exceeding the R report standard value was output due to changes in atmospheric pressure. . That is, the ionization type smoke detector uses a radiation source to ionize people in an internal ion chamber where no explosives flow in and an external ion chamber covered by smoke, and detects changes in voltage due to the inflow of smoke. Because of its structure, there is a fear that sudden changes in atmospheric pressure could cause changes in the chamber Yozuki.
is. The object of the present invention is to provide a fire alarm system which is designed to solve the problem and prevent false alarms caused by changes in atmospheric pressure. 3 To achieve this goal, the present invention detects the air pressure detector C and captures changes in air pressure at regular intervals, and detects air pressure L.
1 for r change. Change the setting cycle of the alarm reference value until t.4
"ζ Sea urchin, specifically (Y, depending on the magnitude of the change in atmospheric pressureC
(1) Set cycle to 1m
To avoid false alarms, set 'rtIl' hr+ to follow pressure changes by promptly incorporating changes in fire data into the alarm value oil cylinder. An example of an actual f+i!i of the present invention will be explained based on one plane of one solenoid. Fig. 1 is a diagram 71119 showing an embodiment of the present invention. To explain the configuration, there are 1 (, 1 reception), and the smoke detector 3 (, 1 reception) is connected to the signal line to the receiver 1. Due to a fire!
Fire detection according to chestnut concentration (Ionization type smoke detector that outputs No. 1 snow is used 3, and atmospheric pressure sensor 4 is based on the range of atmospheric pressure changes according to weather conditions A'1) For example, the air pressure in the range of 900 - 1100 millibar (1) - Output (J: >3'G) according to the change. The output of the smoke detector 3 and the air pressure sensor 1 ( It is input connected to the A/D converter Zi 5 of the receiver 1, and converts the analog fire detection signal from the smoke detector 3 and the air pressure detection signal from the air pressure sensor 4 into digital signals. 6 is a reception processing unit - 〇, for example c, r'', 'Ita 1-
1-' Impicoter can be realized by 1-gram control. That is, in the receiving process tqIr:++6,
Smoke sensation, 11 device r3 (explosion data meter 7. which stores detected smoke data, and Qigetsu-Renri/'l (倹1j l,
Taki 1 “Kigetsu γ-Kume Shichiri E3 that memorizes data is established (
Based on the sampling signal from the alteration (the predetermined ringing period IVJ period) For example, three smoke data are collected in a single rimbling process. . , ;H% Q(i1ti calculation unit (
Yes, the setting cycle change section ε], "" is outputted in multiple rimbling cycles, for example, when the rimbling cycle is 5], a direct setting signal of ff1(!-1 is output, and this setting signal is Rinzorin's smoke data according to the data
5) °, force output U'
The average value of 7 is calculated by τ7(shi, this average lll'I!,
L'A, Ill'i S a are both output. Also, 121.1.1. Shiku'gu' (itj i;', 1
The early ts that made the oil tank in part 10! -(iCi S a constant (+fi) is used according to the sensitivity history. 13 is an alarm value calculation section, and the base ill value operation section 10 (operation + i near I (
, /, two groups single Sa and p3 tlls plus F3 +1(
l Wa fixed part 12. j,') Nobase”/1111 calculated value α
Input the alarm value as 5p=SaIci';61/l;J is the comparison circuit;
l', i Link cycle of smoke data excluding the set cycle of S11 fjj M, from the 33 smoke data 4 alarm 111'l calculation unit 13 recorded and hidden in the smoke data 7 A comparative output is generated when the soto W data of zl\l is compared with the alarm Ill'l51) of the alarm 1, and a comparison output is generated via the interface 15 Due to the operation of section 16, the fire 1 is also divided into 11. On the other hand, the air pressure f - the temperature is memorized in E3.
-The ring link cycle in the evening is a predetermined fixed cycle of 1! l]
This was carried out on '+10, and this air pressure data E3 records the current air pressure data pn and the function that stores the previous air pressure data n-1. ,,Kigetsu-
j-Tameshisu 8q) Note 10 output 4J Liiζ7 (Part 1
To ε3! Act I: ``N part lε3 is the lean blink period of the atmospheric pressure data. p
ni is manually calculated, ΔP = l P n-1) n-11 is calculated with J, and the difference Δ[ is output. This calculation B111ε3゜j, the pressure difference △[-' is given to the setting cycle change 8 [39 1), and d-3, the setting layer lUj change section 9 (according to the size of the difference △P) (Detect the smoke event → change the reference value setting period for calculating the non-bringing period 1ill and the base value Sa) (remove the layer weight. In other words, in this embodiment To the atmospheric pressure difference 1-) to three levels: human, medium, small GJ, atmospheric pressure difference Δ1) or small 11.4 to! tl (Itfl setting Shumei - "0 doshi, ki 11; r
-△When the value is 1 or medium, set the standard value setting cycle to ``L''. This single chain setting period To, TL. IJ during IS: -1-o:・-already > -1-s
The relationship is defined as follows. That is, the setting cycle changing section 9 changes the pressure difference △P'7) to increase 7JII NI response I'? :
71 n1” (ll'f Setting circle IJI (r −1
41, -1+, . ir If the periodic changes are sequentially added to the three stages of Ts.
'Are you a moron?' I-ru. Incidentally, at the reference value setting position 1υJ, the rimbling period of the external I L j:l' data is, for example, 1.・′! ′) is set to (and therefore the base 1j
11ff setting lap+! The rimbling period of the smoke data changes in accordance with the change in the history of the IJ.Next, the operation of the embodiment shown in FIG. 1 will be explained based on the smoke data. fire detection (shown in Figure 2))
- C+3 performed according to Tito-1~, 5- no G12
The rimbling of the burst data according to flowchart 1 in the figure corresponds to S.1 in the signal waveform diagram in FIG. 4(C). Flow No. 2 (--1) (Pa is shown in Fig. 4)
As shown in C), J, ruhaya'(i,
If the 1ifi setting cycle is 1°0, then the large cheer 'l'l-'t'-evening ring cycle + i1J is l
O, / 5 C was raised, the first 1. (When the base value setting signal is obtained, the three burst data are rimbling as shown in block a.
Continuing - to C] Rack) Among the three smoke data - Average 11
11 and base piece: 1 shift 3a to Fubei 1 white performance nose part 10 to rx
i ';l'I-', continuation i (sor, ', + tsuku c
t=indication j-J: sea urchin alarm 1irt? Mountain () part 1',
3 C゛light 111 + f + S l) 31) = 3 a
Assuming 1α, the operation ('Nri?,)1, koσ) J, U(J, alarm 1ici S When the calculation of p is completed, the next lean blink period is shown in block d, again the three smoke futa The smoke data is stored in memory, and then the comparison circuit 14 compares the three smoke data detected with the alarm 111°l51. 9, when all the smoke data is alarmed, it is determined that there is a lea fire, and a fire is displayed in the block [I). on the other hand,
When the smoke data is low/j (dot 1 or less than the alarm Mi Sp), (, 1] 11 tsuku 9 (here focus/υ and supplement 1 force/n is N = N 11--1) Since the counter is N-1, the block tlL; Zj; Similarly, 41 fire publications i-j ii・), this j
, 83 repeated eel fire detection 4 times and 71-1 Tsukuri
1J's auxiliary counter N is N-4.
Return to 1 non-shilling of the smoke data of Zo 11 Tsuk a to set J% Tsuta Announcement 1 + IJS +1 again 1゜1
11], Flowchart u''f in Figure 2, fire detection by 1 non-bringing of smoke arc 1/1 time?J'<
The process of resetting the alarm standard Ire' S 11 is repeated after j ICs. Next, I would like to add 31J to the embodiment shown in FIG. 11. , ;'＋
The history of the reference 11I'i set circumference III based on 214 △1'' is carried out according to Figure 3 (, 11-dito-1 ~, 1). J, Rufu Qu l
Change the setting period of ll'1 by changing the cycle of ll'1 in Figure 4.
-, for example, If, ', time [1(
431' Pressure difference ∆ computed by 1 ∆ in J block and 1 x ∆ in poly-pressure data, J, 2, and ∆
1] was extremely small, the discrimination block 0,
Enter a month into one ti1+value l'), l:)S(
However, P te 1 S) Which comparison and discrimination J, S; 1, So, the pressure difference △P in block C is the base type fii'J P s,''
Since , is smaller, the process proceeds to judgment block D, and in this judgment block 11 [), the pressure difference ΔP is the reference value)] MJ:
sl) From a small point of view, the non-pulling period I:5 is also long. + --f Return to t--l- -1-0/5
Fires are determined by detecting smoke data at different sampling intervals. Next, the atmospheric pressure data in ll'7ll 2 → non-bringing ゛ ('Ki 1 earth cold △1 or p L ,, C △l:)
< When you hear one S, go to [= and change the rimbling period to a medium-low period - 1 - IJ, then change the ash 1 to 1] - Jar 1 in Figure 2). m/ε) and 4
``ru → non-bringing period ゛C- Perform fire discrimination based on smoke game 4f. If', 'j p, ll I J-3 in 3 (air pressure △1 as in N) is P m 〈△1 ) < F) S-(・Sometimes 73 days later, the sampling period of Butto 1 Tsuku F!! II
'lL is set to 'A', and when the sampling interval [4] is reached, the pressure difference Δ[) is based on the base 11-(target 1] iChange to the shortest period Ts, and set the period in Fig. 2 as follows:] -'Jl
・−1−+(: l) This results in Ts15. Fire discrimination is performed based on smoke data. S/J'N set, 11h interval 16.l-7"
C is the rimbling period Tm set to J, which is 1°.
By changing the standard value setting cycle (,L, as the air pressure increases) Setting circle + 1 for alarm value 5t) (-8a + operation ε of (x))
1J is reduced by 1Ω, and by immediately changing the setting of the alarm base 11"-frc+ SP due to a change in atmospheric pressure, it is possible to immediately change the setting of the alarm base 11"-frc+ SP. 1-1 Stop the error of erroneously identifying it as a change in MJ (μ). In addition, in the example described in 7F, the change in 1° upper air fi- is divided into 33 steps (and the IS base ip is changed according to each step). 1) J, 1 51 , The above embodiment is for Ana I cog detection of smoke detector (
, 'l Taking the Pouf type, which manually connects the bow directly to the receiver, as an example (if written, for example, real) 9zu! Il:'i 5
To No. B-10708, connect the early 1'lg fire detectors in parallel to the receiver via the power supply line and connect them sequentially. feeling);
11 was called, and the called fire detector (:)' -J
+-+G fire alarm (receive the IG signal by converting it into a digital signal 11) The same applies to fire alarm equipment that sends out signals to shallow areas. <-; From the man-made disaster detector that was set up and called according to the difference in energy! , it is also possible to change the setting circle 1i1J of the warning base quasi-register based on the date. Next (l, Detailed explanation of the present invention: J,
The atmospheric pressure is detected at a regular period (h), and this detection period (ko (
〕Ruki Y ``Alarm used for fire detection according to changes)'', L
Since the setting cycle of tl' has been changed,
When a significant change in atmospheric pressure occurs (31, alarm), tQ'
Since the setting cycle of lil'+ is shortened from 73 days onwards, it is necessary to promptly report changes in the aj ing detection signal due to atmospheric pressure.
By introducing the fire signal into the oil pipe of the fire, it is possible to prevent changes in the fire signal level caused by changes in air from being mistakenly identified as a fire. B8) Fire alarms 2, II, how much human effort does it take to identify disasters?
Hifi's Buddha Jt'i l)l has been significantly moved to 11 times.

[Brief explanation of the drawing]

Figure 1 (, 1 One implementation of the present invention (showing the sill)) [I-] Fig. 33 shows the base r1'-1+ based on the atmospheric pressure data according to the present invention.
+', flow showing the change process of i setting Shumei~・-1
・FIG. 4 is a diagram showing a change in the reference value setting cycle according to the present invention. 1: Receiver 3: Smoke detector 4: Atmospheric pressure lens) 5. △/1] Converter 6, reception processing unit 7: smoke data memory 8: atmospheric pressure measurement 9: setting cycle changing unit 10: reference) 1f1 calculation unit 12, t quasi-additional value setting unit 13, alarm 11'] p7 ji”, 1 part 14
° Comparison circuit 15: Interface 1 (Uh, fire display section

Claims (1)

[Claims] ) Detect the detection data from the C+G fire detector at a predetermined periodic angle, calculate the R alarm reference value, and compare the fire detection data with the alarm W- value to determine a fire. A5 is on the fire alarm system, and the air pressure detector is connected to the air pressure detector, and the air pressure detected by the sensor changes at a certain time. (・Analog fire reportage 1!1゜ characterized by being equipped with a setting cycle for changing the setting cycle of the 1st base semi-an paste.