JPH01140291A - Disaster preventing system - Google Patents

Abstract

PURPOSE:To properly execute a processing by disposing plural smoke moving direction detectors and providing a means for analyzing information patterns therefrom and specifying a fire break place in a fire receiver. CONSTITUTION:The plural smoke moving direction detectors 1 provided with a LED 2, a light receiving element 3 and an image sensor 4 to catch the inflow state of the smoke by the image sensor 4. When the concentration of the smoke of a certain level is detected, the flow is detected, the fire receivers specifies the flow of the smoke in a building and the fire break place in a pattern according to accident warning audible signals from 2-4 places and the information of a flow direction, controls only the vicinity of the fire break place by a smoke protection and extraction equipment based on a proper proceeding system in the respective places and maintains a fire escape passage without unnecessarily operating a remote equipment.

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 determining a fire based on a pattern (actual state of fire spread) using multiple fire detectors, it was only possible to detect the spread of the fire based on the phenomenon of smoke diffusion. 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 patterns, and by detecting the location of the fire, smoke prevention and exhaust control, evacuation guidance, and automatic fire extinguishing can be performed accurately. The purpose is to create a disaster prevention system that can be used in the future.

[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. can perform smoke prevention control, fire extinguishing equipment control, and evacuation guidance equipment control by assuming the direction of smoke generation or the location of fire outbreak. It is.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.

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. It controls guidance equipment, and by installing multiple smoke movement direction detectors, the fire receiver etc. is equipped with a means to analyze the pattern of information from each smoke movement direction detector and identify the location of the fire. ■The direction of smoke flow can be entered as information, so cooking and
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 principle diagram of the smoke movement direction detector, Figure 2 is a conceptual diagram of the main parts, Figure 3 is a functional block diagram', and Figure 4 is a fire outbreak. It is an explanatory diagram of a place. 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 direction detector is installed, and based on the information on the direction of movement of smoke, a fire receiver, smoke prevention and exhaust control panel, etc. can perform smoke prevention and exhaust control, fire extinguishing equipment control, and evacuation guidance equipment based on the assumption of the direction of smoke generation or the location of the fire. It is characterized by providing a fire receiver, etc. with a means to identify the location of a fire by providing a plurality of smoke movement direction detectors and analyzing the information from each smoke movement direction detector in a pattern. disaster prevention system. 2) The disaster prevention system according to claim 1, wherein, based on an assumption of the location of the fire, only the smoke prevention and exhaust control equipment that is close to the location of the fire is controlled. 3) The disaster prevention system according to claim 1, which controls evacuation guidance equipment in a direction that allows safe evacuation from the fire location based on an assumption of the fire outbreak location.