JPH07210777A - Fire sense system with outdoor or indoor inspection function - Google Patents

Abstract

PURPOSE:To easily and properly inspect a fire sensor without sending an operator the indoor or outdoor place where the fire sensor is installed at each time. CONSTITUTION:The fire sense system has the fire sensor 2 installed indoors or outdoors, a switch 4 for inspection which places the fire sensor 2 in an artificial fire sensing state to generate an alarm is provided indoors or outdoors, and an alarm means 3 which performs alarming operation when the fire sensor 2 generates the alarm by being placed in the artificial fire sensing state with the switch 4 for inspection is provided indoors or outdoors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire detection system with an outdoor or outdoor inspection function, which is capable of easily inspecting whether or not a fire detector operates normally.

[0002]

2. Description of the Related Art As a conventional fire detection system, there has been proposed a fire detector provided with an inspection switch for bringing the fire detector into a pseudo fire detection state. With such a system, it is possible to give a false alarm to the fire detector without actually heating the fire detector. The inspection work of can be easily performed. Thus, in the past, the above-mentioned inspection switch was actually connected to the fire detector itself or in the vicinity of the fire detector, and it was placed in the room where the fire detector was installed or in the room. It was the actual situation.

[0003]

In the above-mentioned conventional system, in order to operate the inspection switch to check whether the fire detector operates normally, it is necessary to check whether the fire detector is installed in the room where the fire detector is installed. It is necessary for workers to enter indoors one by one. Therefore, the inspection work is troublesome. Especially, such a difficulty is more remarkable when a large number of fire detectors to be inspected are installed, as in a large-scale condominium with a large number of dwelling units. There were also problems in terms of privacy of residents and time restrictions when entering.

The present invention has been proposed in view of the above points, and it is not necessary for an operator to step into the room where a fire detector is installed or indoors, and the inspection work of the fire detector can be performed easily and appropriately. The purpose is to be able to do it.

[0005]

The present invention according to claim 1, which is proposed to achieve the above object, is a fire detection system in which a fire detector is installed indoors or indoors,
An inspection switch for making the fire detector in a pseudo fire detection state and issuing a warning is provided outdoors or outdoors, and the fire detector is operated in a pseudo fire detection state by operating the inspection switch. Is a fire detection system with an outdoor or outdoor inspection function, which is provided outdoors or outdoors.

According to a second aspect of the present invention, there is provided an outdoor or outdoor fire detecting function with an inspection function, wherein the fire detector has a connection terminal for connecting an inspection switch. The connection terminal for connecting the notifying means is shared, and the inspection switch and the notifying means are connected on the same wiring.

[0007]

In the fire detecting system with an outdoor or outdoor inspection function according to the present invention, which is characterized by the above-mentioned constitution, for the purpose of making a fire detector into a pseudo fire detecting state and issuing an alarm. Since the switch is provided outdoors or outdoors, it is not necessary for an operator to enter the room or the room to operate the inspection switch. Further, when the inspection switch is operated, whether or not the fire detector operates normally can be properly determined by checking the operating state of the notification means provided outdoors or outdoors. .

In the fire detection system with an outdoor or outdoor inspection function according to the present invention as defined in claim 2, the above-mentioned inspection switch and notification means can be connected to the fire detector on the same wiring. Therefore, it is possible to reduce the number of wires when installing the inspection switch and the notification means.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a schematic explanatory view showing an example of a fire detection system with an outdoor or outdoor inspection function according to the present invention, FIG.
FIG. 3 is a block diagram showing an example of a hardware configuration of a fire detector of the system. In FIG. 1, a plurality of fire detectors 2 ... Are connected to a receiver 1 via a two-wire communication line L. The communication line L serves as a power supply line to each fire detector 2 and as a signal line from which a fire alarm signal is transmitted from the fire detector 2 to the receiver 1.

In each of the fire detectors 2, a switch 4 for inspection and a fire indicator lamp 3 as an example of a fire alarm means are connected to the wiring La.
Are connected to each other. Each fire detector 2 is installed in each dwelling unit in a condominium such as a condominium, for example, but the fire indicator light 3 and the inspection switch 4 are attached to the wall of a common corridor located outside each dwelling unit. ing.
The inspection switch 4 may be provided integrally with the fire indicating lamp 3, or may be arranged at a position different from the fire indicating lamp 3, and either one may be provided.

In FIG. 2, the fire detector 2 is normally monitored for smoke by a smoke detection circuit 22 connected to a constant voltage circuit 21. As a specific example of the smoke detection circuit 22, for example, the light projected from the light projecting element is set so as not to be directly received by the light receiving element, and the smoke detecting circuit 22 is provided in a space between the light projecting element and the light receiving element. When smoke particles flow into the smoke, a type that outputs a signal S1 of an output level corresponding to the smoke density by receiving the scattered light of the light projected on the smoke by the light receiving element is applied. You can

The signal S1 output from the smoke detection circuit 22
Is input to the comparison circuit 23 and compared with a constant reference value. Then, when the value of the signal S1 becomes equal to or greater than a certain reference value, the predetermined signal S2 is output as the fire signal output circuit 20.
And is output to the fire display circuit 24. As a result, the fire signal output circuit 20 sends a warning signal to the receiver 1 indicating that a fire has occurred. Further, the fire display circuit 24 outputs a signal S3 to the switching circuit 26. The switching circuit 26 includes resistors R1 to R4,
It is composed of transistors TR1, TR2, etc.,
When the signal S3 is output from the fire display circuit 24, the transistor TR1 is turned on, so that a current flows through the fire display light 3 connected to the connection terminal T, and the fire display light 3 is driven to light.

On the other hand, in the fire detector 2, when the inspection switch 4 connected in parallel with the fire indicator lamp 3 is turned on, the transistor TR2 is turned on and the inspection circuit 2 is turned on.
5 works. Next, when the inspection switch 4 is turned off, a predetermined signal S4 is input from the inspection circuit 25 to the smoke detection circuit 22, so that the smoke detection circuit 22 produces a pseudo smoke having a certain concentration or more. It will be in the same state as it was detected. As means for performing this pseudo smoke detection operation, for example, a pseudo light emitting element for pseudo alarm is provided separately from a pair of light emitting element and light receiving element for smoke detection,
When the smoke detection circuit 22 receives the signal S4, the light emitted from the light emitting element for the pseudo alarm may be directly received by the light receiving element. Even with such a pseudo smoke detection, the signal S1 having a certain reference value or more is input to the comparison circuit 23 to be in the alarming state, similarly to the alarming at the time of the fire occurrence. Will be done.

In the fire detection system having the above-mentioned configuration, when the respective fire detectors 2 are inspected, it is not necessary for a worker to enter the respective dwelling units of the housing complex, and the check is provided outside the dwelling units such as a common corridor The operation switch 4 can be easily operated. When the fire detector 2 operates normally, the fire detector 2 is activated by the operation of the inspection switch 4, so that the fire indicator light 3 installed in the common corridor is turned on. To do. On the other hand, fire detector 2
Does not operate normally, the fire indicator light 3 does not perform the lighting operation. Therefore, in any case, by looking at the fire indicator light 3 installed in the common corridor, it is possible to easily and quickly confirm whether or not the fire detector 2 is normal.

In the above embodiment, the case where the fire detector 2 is installed inside the dwelling unit of the housing complex and the inspection switch 4 and the fire indicator light 3 are installed outside the dwelling unit such as a common corridor has been described. The present invention is not limited to this. For example, in a hotel or a hospital, the fire detector 2 may be provided indoors, and the inspection switch 4 and the fire indicator light 3 may be provided outdoors such as in a corridor or outdoors such as an outer wall. Sensor 2
May be provided indoors or indoors, and the inspection switch 4 and the fire indicator light 3 may be provided outdoors or outdoors.

In the embodiment shown in FIG. 2, the fire detection is performed by the smoke detection, but the present invention is not limited to this. For example, a fire detector of the type that performs fire detection by heat detection using a thermistor or the like may be used. In this case, as means for creating a pseudo fire detection state, for example, when the inspection switch 4 is operated, a resistance is connected in parallel to the thermistor to create a pseudo temperature rise state. Good.

Further, in the present invention, the notifying means for notifying the fire condition is not limited to the fire indicator lamp 3, but display means such as a liquid crystal display may be used, or a device for generating an alarm sound may be used. You may use. Further, the notification means installed outdoors or outdoors may be, for example, a dedicated notification means for inspecting the fire detector, and a notification operation for performing an alarm operation when the fire detector 2 actually detects a fire. Means may be separately provided, and this notifying means may be provided indoors or indoors together with the fire detector 2.

[0018]

As can be understood from the above description, according to the fire detection system with an outdoor or outdoor inspection function according to the present invention as defined in claims 1 and 2, an inspection switch installed outdoors or outdoors. After operating, you can check whether the fire detector is normal by checking the notification means installed outdoors or outdoors, so unlike the conventional case,
When inspecting the fire detector, it is not necessary for the worker to bother to enter the room where the fire detector is installed or indoors, and the special effect that the inspection work can be performed quickly and efficiently is obtained. Particularly, according to the present invention as set forth in claim 2,
Since the wiring of the notification means and the inspection switch is shared and the number of wirings can be reduced, there is an advantage that the construction work can be facilitated.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example of a schematic configuration of a fire detection system with an outdoor or outdoor inspection function according to the present invention.

FIG. 2 is a block diagram showing an example of a hardware configuration of a fire detector applied to the fire detection system with an outdoor or outdoor inspection function according to the present invention.

[Explanation of symbols]

 1 receiver 2 fire detector 3 fire indicator light 4 inspection switch 20 fire signal output circuit 21 constant voltage circuit 22 smoke detection circuit 23 comparison circuit 24 fire display circuit 25 inspection circuit 26 switching circuit T terminal L communication line La wiring

Claims (2)

[Claims] 1. A fire detection system in which a fire detector is installed indoors or indoors, and an inspection switch for putting the fire detector in a pseudo fire detection state to issue an alarm is provided outdoors or outdoors. In addition to being provided, an informing means for performing an informing operation when the fire detector is in a pseudo fire detecting state by operating the inspection switch is provided outside or outdoors Fire detection system with outdoor or outdoor inspection function. 2. The fire detector according to claim 1, wherein the connection terminal for connecting the inspection switch and the connection terminal for connecting the notification means are shared, and the inspection switch and the notification means are the same. Fire detection system with outdoor or outdoor inspection function, characterized by being connected on wiring.