JPS62150497A - Fire alarm display unit - 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 "Field of Industrial Application" The present invention relates to a fire alarm display device that displays the location of a fire outbreak using an indicator light corresponding to a warning area.

``Prior art'' Conventionally, fire alarm system receivers have display windows that correspond to multiple lines attached to the panel, and when an alarm occurs, one of the display windows lights up to indicate the location of the alarm. Some are equipped with a map-type display device that depicts cross-sectional views and floor plans of buildings, and some are equipped with lighting to indicate the fire area. For example, Publication of Utility Model Publication No. 58-15970, ``Map display device for fire alarms, etc.'', Publication of Utility Model Publication No. 1749-1988,
There is a publication titled ``Map Display Device''. In addition, when there are multiple 11 alarms in such a display device, there is a display device that displays the order of the alarms. For example, JP-A-5
No. 1-48998 ``Reception display device for alarm equipment''.

``Problems to be solved by the invention'' In such a conventional fire alarm display device,
If there are multiple alerts, they will be displayed in the same way after they are issued.

If the order of alarms is displayed numerically, you can know the order of alarms, but if there are many alarms, it is difficult to know the progress of the fire from the order of alarms at a glance. This cannot be said to be appropriate as a display device that requires an emergency such as a fire alarm.

"Means for Solving the Problem" The fire alarm display device of the present invention includes a plurality of memory circuits provided for each line that stores the order in which fire signals are issued from each line in binary numbers, and a predetermined clock cycle. A counting circuit that counts and outputs a counting signal, and a plurality of circuits that output an identification signal when the counted value of this counting circuit becomes equal to the stored output value of the storage circuit or detects that it exceeds the stored output value. It is composed of a plurality of comparison means corresponding to the memory circuit of the plurality of comparison means, and a plurality of district indicator lights driven based on the identification signals of the plurality of comparison units, and the display state of the district indicator lights is changed depending on the order in which the alarms are issued. In other words, the indicator lights in each area where a warning has been issued are turned on periodically, and the lights are turned on in the order in which the warning is issued first.

``Function'' When there are fire alarms from multiple lines, the district indicator light where the first alarm was issued is lit first, the district indicator light where the next alarm was issued is lit after a predetermined time, and then lights up in the order in which the alarms were issued. This display can be repeated over and over again, so you can keep track of the progress of the fire.

"Embodiment" Hereinafter, one embodiment of the fire alarm display device of the present invention will be described based on the drawings. The drawing is a block diagram showing one embodiment of the fire alarm display device of the present invention, in which control signals 11 to 1 form a differentiating circuit for differentiating fire signals from each line.
7+, , resistance 30. and capacitors 21-27L, resistors R31-3? L, a counter 1 that counts the number of fire inputs from each line, a plurality of memory circuits 41 to 4n such as preset counters that memorize the fire alarm order of each line, and a clock that generates clock pulses of a predetermined period. An oscillator 2, a counter 3 that counts clock pulses of the clock oscillator 2, and a count value of the counter 3 is stored in each memory circuit 41.
~When it becomes equal to the memory output value of 47L or the memory amount
'Magnitude confusciator 5 as a plurality of comparison means that detects that the force has exceeded the force value and outputs an identification signal.
1-5? Magnitude Converter 51~
5? Drive circuits 61 to 67L that amplify the identification signal of L;
District indicator lights 71-7 corresponding to each line driven by these drive circuits 61-67L? It is composed of L.

Terminals L1 to L9 are connected to contacts of district relays (relays that respond to the operation of fire detectors) of each line, and are applied with signals that are high in normal times and low in the event of a fire.

To explain the operation of the fire alarm display device of the present invention configured as described above, when the fire detector detects a fire phenomenon and operates, the district relay, etc. corresponding to the line of the activated fire detector is activated. Then, depending on the contacts of this district relay, terminals L1 to L? Change L from high to low level. Is this fire signal capacitor 11-1? The pulse signal is converted into a pulse signal by a differentiating circuit including L and a resistor 30, and is input to the counter 1. The counter 1 counts the pulses of this fire input and outputs the counted value. The counted value of this counter 1 is input to storage circuits 41 to 4n. Also, the fire signal is capacitor 21-2? L and resistance 31-3? It is made into a pulse signal by a differentiating circuit with L. Each memory circuit 41-4? L performs a storage operation based on this pulse signal. Therefore, only the memory circuits 41 to 4n corresponding to the lines to which the fire signal is input operate to store the fire input order.

The memory circuits 41-4n output count signals indicating the stored fire input order to the magnitude compilers 51-5. On the other hand, the clock oscillator 2 has a predetermined period (about 1 to 2 seconds)
Outputs the clock pulse. The counter 3 counts clock pulses and constantly outputs the count output to each of the magnitude comparators 51 to 57L. Magnitude comparators 51 to 57L have corresponding memory circuits 41 to 4.
? Once L performs a memory operation, the memory output value and counter 3
A comparison is made with the count value of . For magnitude comparators 51 to 59, the output value of the counter 3 is stored in the memory circuit 4.
When it becomes equal to the stored output value of 1 to 49 or exceeds the stored output value, an identification signal is output.

Based on this identification signal, the drive circuits 61 to 6? L lights up each district indicator light 71-7n. The output value of counter 3 is [0
, 0, ... 0] and repeats the count value that becomes [1, 1, ... 1]. Therefore, the output value of the counter 3 is (1
,O,O...0] or (0,1,0...0] until it becomes (: 1.1゜1...1).Then, when the second alarm is issued, the second alarm will light up. The district indicator lights 71 to 7n corresponding to the second alarm are turned on with a delay of one clock pulse cycle from the lighting of the first alarm.The same applies when there is a third, fourth, etc. alarm. Therefore, especially in the case of a map type, the location where the fire occurred and the progress of the fire can be grasped at a glance from the display status of the district indicator lights 71 to 7'L. The operations of the circuits 41 to 47L are performed after the counting operation of the counter 1 is completed.

In the example shown here, the display operation is repeated, but when the output value of the counter 3 reaches (1, 1, ... 1), the counting operation of the counter 3 is stopped and the display operation is repeated once. It is also possible to perform only the display operation and provide a start switch or the like to manually start the counting operation of the counter 3 and repeat the display.

Furthermore, those skilled in the art will have no objection to the fact that the concept of this invention can be easily realized by a microcomputer program. Furthermore, this could also be realized by dynamically providing a difference in the order of alerting in CR and T displays.

"Effects of the Invention" As explained above, in the fire alarm display device of the present invention, when a fire alarm is issued from multiple lines, the district indicator light that was issued first lights up first, and then the The area indicator lights that have been issued will be lit after a predetermined time and will be lit in the order in which they are issued.
In addition, since this display operation can be repeated, it is possible to grasp the location of the fire and its progress by looking at the dynamic difference in the display method. Ideal for display devices. +8-7!

[Brief explanation of drawings]

The drawing is a block diagram showing one embodiment of the fire alarm display device of the present invention. 1.3...Counter, 2...Clock oscillator, 41
~4n...Memory circuit, 51~57L...Magnitude comparator, 61~6? L...drive circuit, 71
~7? L...District indicator light, 30~37L-...Resistance,
11-1? L, 21-2n... Capacitor.

Claims (1)

[Claims] In a fire alarm display device that displays the area where a fire has occurred by lighting up a district indicator light corresponding to the fire signal emitted from the line of each fire warning area, the above-mentioned A plurality of memory circuits provided for each line, a counting circuit that counts at a predetermined clock cycle,
A plurality of comparisons corresponding to the plurality of storage circuits that output an identification signal when the output value of the counting circuit becomes equal to or exceeds the storage output value of the storage circuit. What is claimed is: 1. A fire alarm display device comprising: a fire alarm display device; and a plurality of district indicator lights driven based on the identification signals of the plurality of comparison means.