JPH01140292A - Disaster preventing system - Google Patents

Abstract

PURPOSE:To execute a proper disaster preventing processing by providing a smoke moving direction detector and assuming the generating direction of the smoke or a fire break place by a fire receiver or a smoke protection and extraction control board, etc., from the moving direction information of the smoke. CONSTITUTION:The plural smoke moving direction detectors 1 having a LED 2, a light receiving element 3 and an image sensor 4 are disposed to detect the flow of the smoke when the density of the smoke of a certain level is detected and assume the flow of the smoke or the fire break place in a building in a pattern by the fire receiver, the smoke protection and extraction control board, etc., from the accident warning audible signals from 2-4 places and the information of the flow direction. Thereby, a fire escape passage is maintained to apply a correct and safe disaster preventing processing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a disaster prevention system using a fire detector capable of detecting the direction of movement of smoke.

[Background technology]

In conventional fire alarm systems, fire detectors that detect fire smoke only detect the presence or absence of smoke or the level (smoke density) when smoke is present. Therefore, even when a fire is judged based on a pattern (fire spread pattern B) using a plurality of fire detectors, the spread of the fire can only be detected based on the smoke diffusion phenomenon. Therefore,
It was not possible to determine the direction in which the smoke was moving, and it was not possible to determine the danger (for example, identifying whether smoke was coming from the kitchen). Additionally, smoke prevention and exhaust control had to be carried out uniformly because the direction of the fire outbreak location was unknown, and for the same reason, evacuation guidance could not be automated the closer to the fire outbreak location (the farther away from the fire outbreak location, the less automated it could be). (smoke control and evacuation guidance may be appropriate).

[Purpose of the invention]

The present invention has been made focusing on the above-mentioned problems,
By detecting the presence or absence of smoke and the direction of smoke inflow, it is possible to make reliable fire judgments based on multiple bars and turns, and by detecting the location of the fire, smoke prevention control, evacuation guidance, and The purpose is to create a disaster prevention system that can accurately perform automatic fire extinguishing.

[Disclosure of the invention]

The present invention provides a smoke movement direction detector that detects the direction of smoke movement at a particular location and sends the information to the fire receiver, etc. in a disaster prevention system that includes a fire detector, a fire receiver, a smoke prevention control panel, etc. Based on the smoke movement direction information, a fire receiver, smoke prevention and exhaust control panel, etc. performs smoke prevention control, fire extinguishing equipment control, and evacuation guidance equipment control by assuming the direction of smoke generation or the location of fire. It is.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

Figure 1 shows a smoke movement direction detector 1, which has the same configuration as the photoelectric spot type, in which 2 is a light emitting source such as a light emitting diode, and 3 is a conventional light receiving element. An image sensor 4 is provided in place of the light receiving element, and the image sensor 4 captures the smoke inflow situation. In the case of a smoke detector and a composite integrated type, both a light receiving element 3 and an image sensor 4 are provided. This method makes a judgment based on the location where smoke is present at the beginning of the inflow. On the other hand, a method may be used in which the flow of smoke is interpreted as a change in smoke density, and the direction of smoke inflow is calculated based on the change in density.

FIG. 2 shows an example of a disc-shaped image sensor, and FIG. 3 shows a functional block circuit diagram.

Usually, a plurality of such smoke movement direction detectors 1 are installed, and when a certain level of smoke concentration is detected, the flow of smoke is detected, and an alarm signal from 2 to 3.4 points and the direction of the inflow are transmitted. Based on the information, we identify patterns of smoke flow within the target building and the location of the fire outbreak, and based on the appropriate treatment system for each location, smoke control equipment is controlled only in areas close to the location of the fire, and remote equipment is controlled. It will not be operated unnecessarily and will be used to secure an evacuation route.

〔Effect of the invention〕

As described above, according to the present invention, in a disaster prevention system that includes a fire detector, a fire receiver, a smoke prevention and exhaust control panel, etc., the direction of movement of smoke at that location is detected and the information is sent to the fire receiver, etc. A smoke movement direction detector is installed, and based on the information on the direction of smoke movement, a fire receiver or smoke prevention control panel, etc. can perform smoke prevention control, fire extinguishing equipment control, and evacuation by assuming the direction of smoke generation or the location of the fire. Since the guidance equipment was controlled,
■You can input the direction of smoke flow as information, so you can
If the occurrence of smoke, scorch, etc. in the bath is well known, its influence can be excluded and fire detection can be performed reliably.

■When making a judgment based on multiple detections, it becomes possible to conduct a systematic test that assumes the scene of a fire, allowing for more accurate fire judgments.

■Smoke prevention and evacuation control and evacuation guidance can be implemented with a more precise, accurate, and safe system based on the location of the fire.

■Compatible with automatic fire extinguishing systems, making it possible to automatically extinguish fires in small areas.

[Brief explanation of the drawing]

Figures 1 to 4 show examples, Figure 1 is a structural diagram of a smoke movement direction detector, Figure 2 is a conceptual diagram of an image sensor, Figure 3 is a functional block diagram of the same as above, and Figure 4 is a diagram of the structure of a smoke movement direction detector. It is a principle diagram of a fire outbreak location. 1...Smoke movement direction detector. that's all

Claims (1)

[Claims] 1) In a disaster prevention system that includes a fire detector, a fire receiver, a smoke prevention control panel, etc., smoke movement detects the direction of movement of smoke at that location and sends that information to a fire receiver, etc. A disaster prevention system comprising a direction detector, and based on information on the direction of smoke movement, a fire receiver, a smoke prevention and exhaust control panel, etc. can predict the direction of smoke generation or the location of a fire. 2) The disaster prevention system according to claim 1, wherein the smoke movement direction detector is integrally formed with the fire detector. 3) By providing a plurality of smoke movement direction detectors, a fire receiver or the like is provided with means for pattern analysis of information from each smoke movement direction detector to identify the location of a fire. Disaster prevention system in Section 1.