JPS6121596A - Fire sensing system - 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 aims to solve the following problems.

(Field of Industrial Application) The present invention relates to a fire detection system trap that detects whether or not a fire has occurred in a plurality of dwelling units in an apartment complex.

(Conventional technology) Conventional fire detection systems that allow the control room to detect the occurrence of a fire in each dwelling unit are difficult for the residents of the dwelling unit where the fire occurred to know that a fire has occurred in their home. There was a problem.

(Problems to be Solved by the Invention) This invention eliminates the above-mentioned conventional problems and provides a fire detection system that can notify both the control room and the dwelling unit when a fire occurs in a dwelling unit. This is what we are trying to provide.

The configuration of the present invention is as follows.

(Means for Solving the Problems) The present invention takes the measures as described in the claims above, and its effects are as follows.

(Function) When a fire occurs in one of the multiple dwelling units, the fire detector of that dwelling unit detects it, and the fire indicator in the management room and the fire indicator in the dwelling unit are shown as shown below. The drawings will be explained.

1 indicates a plurality of dwelling units, each of which has a display device 2 for the dwelling unit. 3 indicates a management room, which is equipped with a collective display device 4. The display device 2 for each dwelling unit and the collective display device 4 are connected to each company via an aSS.

Next, the dwelling unit display device 2 will be explained in detail.

The a#i contact M terminal is a fire detector, and its internal resistance is high (infinite) when it is not detecting a fire, that is, when it is monitoring.
When a fire is detected, the internal resistance of the ridge is low (for example, 0 to 12).
5Ω).

8 is a terminal resistor connected in parallel with the sensor n7, and its resistance value is, for example, 5. IKΩ is used. In addition to the well-known voltage drop resistor manufactured by 9th Company, a lamp may also be used. Note that, for example, 68Ω is used as the value. 10 is a changeover switch, 11 is a common terminal, and 12 and 13 are changeover terminals, respectively. 14 is a detection circuit, which outputs a signal to activate the fire i-indicator 15 (acoustic type, luminous type, or both types) when the input voltage is low (for example, 5 V or less) as shown in Fig. If the voltage is high (more than 5V), the circuit is constructed so as not to produce such an output. For example, a comparator is used as an example of this. 17 is a fishing circuit, the power plug is connected to AC 100Vt, and the DC connection is connected to 6
．． A device that outputs 2V is used. The output is sent to the switching terminal 13 as shown in the figure, and is also sent to the detection circuit 147 as shown by the arrow mark and to the discrimination circuit 4 described later.Next, the z#i connection iR
The switching means connected to the layer 6 is shown. In this case, the circuit is a discrimination circuit, and as shown in the 6th @, when the input voltage is low (for example, 5V or less), it produces an output that activates it towards the Rekoi/1722, and when the input voltage is high (5V or more), it produces an output that activates it. It is configured so that it does not produce any output. For example, a well-known comparator is used as this discrimination circuit base.

The relay coil ρn is for operating the changeover switch IO.

Next, the group display device 4 will be explained. Reference numeral 25 denotes connection terminals, which are provided in a number corresponding to the number of dwelling units 1.

The vortex is a power supply circuit, and the 100V received from the power supply lug is
It is designed to convert the alternating current into 24V direct current and output it. A part of the output is also supplied to a discrimination circuit 4 to be described later for its operation.

The column is a resistor for voltage drop, and like the resistor 9, a well-known resistor or lamp is used. The resistance value thereof is, for example, 560Ω. 9 is a discrimination circuit, which produces an output from the first output terminal 29a when the input voltage is low (for example, 7■ or less) as shown in FIG. 29b produces an output, and when the input voltage value is between the above cases, the first and second output terminals 29a,
The structure is such that no output is generated from any of the terminals 29b.

For example, a window comparator is used as such a device. (9) is a fire indicator (acoustic type, light emitting type, or a combination of both types), the number of which corresponds to the number of dwelling units. 31 is a firewood line indicator (acoustic type, luminous type or i
Both types are used together), and the number of these is also equal to the number of dwelling units.

Next, the operation of the above configuration will be explained. The direct current sent 9 from the power supply circuit array is sent to each connection terminal 5 via each resistor A, and is sent from these connection terminals δ to the dwelling unit display device 2 via each connection [5]. and its display device′″
At 2, the upper direct current is received from the connection terminal 6 and sent to the sensor 7 via the changeover switch lO1 resistor 9. In the above situation, fire is also connected! Under normal conditions with no disconnection of I5, the voltages at each point indicated by (a), (b), and gu in Fig. G are as shown in Fig. 5, Fig. 3, and Fig. 7, respectively. The voltage is as shown in c). For this reason, none of the detection circuit 14, discrimination circuit 4, and discrimination circuit 9 produces an output, and the fire indicators in each dwelling unit, the fire indicators in the management room, and the disconnection indicator 31 do not display any information. Therefore, the residents of each dwelling unit can know that there is no fire in their home, and the control room can confirm that there is no main fire in any of the dwelling units and that there is no disconnection of the connecting wire 5.

Next, as shown in FIG. 2, when a fire occurs in one dwelling unit, the fire detector 7 of that dwelling unit detects the fire and the internal silence is reduced. Then, in the unit display device 2 of the unit where the fire occurred, the voltage at point 0) decreases as shown by (a)' in FIG. Therefore, the detection circuit 14 detects this and produces an output, and the fire indicator 14 operates to display the fire. On the other hand, in the collective display device of burial chamber i, the voltage at point (c) is the 7th
It decreases as shown in (c)' in the figure. Therefore, in the discrimination circuit 4 corresponding to the dwelling unit where the fire occurred, the first
An output appears at the output end 29a. As a result, the fire indicator corresponding to the above-mentioned dwelling unit performs the display operation.

Indicator 15. Since the swords operate individually, residents of the dwelling unit where the fire occurred can know from the display that a fire has occurred in their home, and even in the control room, the above display will be activated. You can know if a fire has occurred in a residential unit. 'Next, ? A case will be described in which a disconnection occurs in the connection line 5 connected to one dwelling unit as shown in the figure.

In this case, the voltage at point (middle point) in Figure 6 is shown in Figure 6 (
b) It decreases as shown in ''. For this reason, the switching means is activated and the switch 10 is switched from the terminal "O" to the "U" position. This allows the direct current sent from the power supply circuit ■ to switch 1.
0 is sent to the sensor 7 via the resistor 9, and the monitoring state is maintained thereby. - In the square set display device 4,
As a result of the above-mentioned disconnection, the voltage at point (c) becomes high as shown by (c)' in FIG. For this reason, the discrimination circuit 4 is connected to the second output terminal 2.
An output occurs at 9b.

Disconnection indicator 31 related to the dwelling unit where the above-mentioned disconnection occurred as a result.
displays a disconnection. This allows the management room to know that the connection line 5 is disconnected.

If a fire occurs in the dwelling unit related to the disconnection in the above-mentioned condition, the voltage at point (a) will drop as in the case described above, the detection circuit 14 will be activated and the display L5 will perform an indicating operation.

On the other hand, if a power outage occurs in another dwelling unit as shown by the code word in FIG. Since the fire alarm is not sent, the fire indicator in that dwelling unit will not operate even if the fire mentioned above occurs. However, in the management room 3, the collective display device 4 performs the same operation as described above, and the fire indicator I associated with the dwelling unit performs the display operation as shown in FIG. This allows the management room 3 to detect the occurrence of a fire in the dwelling unit.

Next, a power outage occurred in the control room 3, and the collective display device 4 of that control room
In the case where the power supply circuit ν of the display device 2 for each dwelling unit becomes inoperative, power is supplied to the sensor 7 via the switch panel in the same manner as in the case of the disconnection described above. Therefore, in each dwelling unit, it is still possible to detect whether or not a fire has occurred in each dwelling unit.

Next, Fig. g shows an example of a fire detection system equipped with a repeater. For example, one repeater is installed on each floor in a residential complex, a housing complex, etc., and each dwelling unit display device 2e provided in each dwelling unit 1e on that floor is connected to the repeater core. Further, the repeaters d provided on each floor are connected to a collective display device 4e provided in the management room 3e. In the repeater d, C indicates a logic circuit, and the input terminal 42
a Next, in the collective display device 4c, the main part is a display circuit that lights up a red door 1 to perform a display operation. This display circuit is arranged in a number corresponding to a plurality of repeater cores. The shrine is a display circuit for displaying disconnected areas, and is constructed in the same way as the display circuit core described above. This display circuit play is also in the same way as the display circuit heart! The same number of vessels d are provided in correspondence with each other. A logic circuit 6 outputs a signal for driving the display circuit when a signal indicating a disconnection is applied to any one of the input terminals 4511. Next, in the connection 1IA46 that connects the repeater (and the collective display device 4e), C indicates a power supply twin, 纺 indicates a fire signal line, 纺 indicates a disconnection signal line, ω indicates a power supply back line, and 51 indicates a ground line.

If a fire occurs in any of the expanded dwelling units 1e of the above-described structure K, the fire occurring there will be detected by the detector 7e, and the indicator 15e of that dwelling unit will be activated in the same way as in the case described above. On the other hand, in repeater C, the discrimination circuit 29e corresponding to the dwelling unit where the fire occurred operates, and the seventh output terminal 26ae
A fire signal appears. The logic circuit ζ then produces an output which passes through the fire signal fin to the display circuit C. This activates the display circuit C. Therefore, when M1 enters the control room, he can learn that a fire has occurred and the mourning district where the fire occurred (the district in which the fire occurred).

On the other hand, if a disconnection occurs in one of the many contacts 11i1jse, it is detected by the discrimination circuit 3etC$P associated with the dwelling unit where the disconnection has occurred, and the output terminal 29h
Output appears at e. Then, switch to the repeater and display 3.
1e is activated, and an output appears at the output terminal 42b of the logic circuit. The output is transmitted to the logic circuit 6 through the disconnection signal line, and an output is generated from the logic circuit to operate the display circuit.

This allows the administrator to know that a disconnection has occurred and the district where the disconnection occurred. In this case, by going to the repeater d located in the area where the disconnection occurred and looking at the display 31e installed there, it is also possible to know which dwelling unit is experiencing the disconnection.

Next, when any of the connections M46 is disconnected, the power supply fin C or the return fin ω is disconnected, so a signal indicating the disconnection is applied to the input terminal 45a of the logic circuit 45, and the circuit 45 is An output is generated and the power display circuit 44 is activated.

It should be noted that parts that are considered to have the same or equivalent structure as those in the previous figure in terms of function are given the same reference numerals as in the previous figure with the letter e, and redundant explanations are omitted.

(Effects of the Invention) As described above, in this invention, when it is desired to know that each of the plurality of dwelling units 1 is normal without any fire outbreak, the fire indicator of the dwelling unit display device 2 in each dwelling unit 1 is At the same time, all fire indicators for each dwelling unit (
9) has the effect of knowing that all dwelling units are inoperable and normal, and in the event of a fire in any one room or quantity of multiple dwelling units 1, the fire in the dwelling unit where the fire occurred will be suppressed. At the same time, in the control room 3, the fire indicator (9) corresponding to the dwelling unit 1 where the fire occurred starts to display. This has the effect of allowing the manager to know which housing unit the fire occurred in.

Furthermore, in the event of a power outage to the collective display device 4 in the management room 3, power is supplied to the sensor 7 from the power supply circuit ν in the display device 2 in the own room in each residence 1, and each display device 2 can display the operating state. It also has the feature of being able to monitor whether a fire has occurred in your room.

Part 1: Even if the above-mentioned power supply is cut off in each dwelling unit, the J control room can always detect the presence or absence of a fire in each dwelling unit without being affected by it.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIGS. 1 to 3 are diagrams showing the relationship between a housing unit display device equipped with a VC and a collective display device equipped with a management room GC in each of a plurality of housing units. Figure 1 is a block circuit diagram showing the display device for a dwelling unit and the collective display device, respectively, and Figures S to 7 show the inputs and outputs of the detection circuit and discrimination circuit of the display device for a dwelling unit, and the discrimination circuit of the collective display device, respectively. The first figure is a block circuit diagram showing a fire detection system that includes a repeater. 1...Dwelling unit, 2...Dwelling unit display device, 3...Control room, 4...Collection display device, 5...Connection line. Figure 4 Figure 5 N″r′J voltage 1ff power input ff pressure (v)

Claims (1)

[Scope of Claims] Each of the plurality of dwelling units is provided with a dwelling unit display device, while the management room is provided with a collective display device, and the plurality of dwelling unit display devices and the collective display device are connected by a connecting line. In the fire detection system that is connected to the fire detection system, each display device for each dwelling unit is provided with a connection terminal to which the connection wire is connected, and the connection terminal has a non-contact device that exhibits low internal resistance when a fire is detected. A fire detector that exhibits a high internal resistance when sensing is connected via a voltage-drop resistor, and the voltage at the connection point when the sensor detects a fire is connected to the connection point between the sensor and the resistor. A detection circuit is connected that generates an output that activates the fire indicator for the dwelling unit when the value of A fire indicator for the dwelling unit is connected to the detection circuit, and a changeover switch is interposed between the above connection terminal and the resistor. A switching terminal is connected to the connection satin, and a power supply circuit is connected to the other switching terminal for supplying current to the fire detector through the switch and the resistor when the switch is switched. If power arrives from the aggregate display device toward the connection terminal and the voltage value there is high, the switch is switched to one switching terminal side, and the power is connected to the connection terminal. When the connection terminal is disconnected and the connection terminal becomes non-voltage, a switching means is connected to switch the switch to the other switching terminal side. It is equipped with a plurality of connection terminals corresponding to the number of display devices for residential units, each of which is connected to a plurality of connection wires connected to the display device for residential units, and each of these connection terminals is connected to a power source via an individual voltage drop resistor. The circuit is connected, and each of the above connection terminals generates an output that activates a fire indicator when the fire detector of the corresponding dwelling unit detects a fire and the voltage value of the above connection terminal becomes a low value. Discrimination circuits that produce no output when the voltage value of the connection terminal is higher than the above-mentioned low value are connected to each of them, and each of the above discrimination circuits is connected to a fire indicator to indicate a fire for each dwelling unit. Features a fire detection system.