JP-7854628-B2 - Disaster prevention system, fire detection method, and program

JP7854628B2JP 7854628 B2JP7854628 B2JP 7854628B2JP-7854628-B2

Inventors

高橋秀晃
村田舞

Assignees

パナソニックＩＰマネジメント株式会社

Dates

Publication Date: 20260507
Application Date: 20240819

Claims (16)

One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate. Disaster prevention system.
The sensor further comprises a housing that accommodates the plurality of heat sensing elements. The plurality of heat sensing elements are arranged in a peripheral region surrounding the center of the housing, when viewed along a direction intersecting the mounting surface on which the sensor is installed. The disaster prevention system according to claim 1.
The system further comprises a receiving terminal that communicates with one or more of the aforementioned sensors and receives the detection results, The estimation unit is provided in the receiving terminal, The estimation unit estimates the direction of the fire based on the detection results received from one or more of the detectors. The disaster prevention system according to claim 1 or 2.
One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The estimation unit is provided in the sensor, The estimation unit estimates the direction of the fire's origin relative to the machine itself, based on the detection results. Disaster prevention system.
One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The sensor further comprises a housing that accommodates the plurality of heat sensing elements. The housing has a mark on its outer surface indicating a direction relative to the center of the housing when viewed along a direction intersecting the mounting surface on which the sensor is installed. There is a correlation between the arrangement positions of the multiple heat sensing elements relative to the center of the housing and the position of the mark. Disaster prevention system.
The sensor is installed on the mounting surface with the mark facing a specific direction. The estimation unit estimates the direction of the fire's origin based on the detection result and the correlation, with respect to the detector. The disaster prevention system according to claim 5.
One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The system includes two or more of the aforementioned sensors, The system further includes a unit for identifying the location of the fire source by integrating the estimated results regarding the direction of fire origin, based on the detection results of each of the two or more detectors, with each detector as the reference. Disaster prevention system.
One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The system further includes an output unit that outputs the estimation result of the estimation unit, The output unit includes local output units provided in one or more of the sensors. Disaster prevention system.
One or more sensors having multiple heat sensing elements, An estimation unit that estimates the direction of fire occurrence in the monitoring area based on the heat detection results from the plurality of heat detection elements, Equipped with, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The estimation unit estimates the direction of the fire based on the detection results and information about the installation environment in which one or more of the sensors are installed. Disaster prevention system.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate. Fire detection method.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The function of the estimation step is provided in the sensor, In the estimation step, the direction of the fire's origin is estimated based on the detection results, with the aircraft itself as the reference point. Fire detection method.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The sensor further comprises a housing that accommodates the plurality of heat sensing elements. The housing has a mark on its outer surface indicating a direction relative to the center of the housing when viewed along a direction intersecting the mounting surface on which the sensor is installed. There is a correlation between the arrangement positions of the multiple heat sensing elements relative to the center of the housing and the position of the mark. Fire detection method.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, Two or more of the aforementioned sensors are provided. The process further includes a step of identifying the location of the fire source by integrating the estimation results regarding the direction of fire origin based on each of the two or more detectors, each detector being used as a reference. Fire detection method.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, The process further includes an output step that outputs the estimation result of the estimation step, The output step includes a local output step provided in one or more of the sensors. Fire detection method.
An acquisition step to acquire detection results related to heat in multiple heat sensing elements of one or more sensors, Based on the acquired detection results, an estimation step is performed to estimate the direction of fire occurrence in the monitoring area, Includes, The sensor further comprises one circuit board, The plurality of thermal sensing elements are mounted on the single substrate, Each of the plurality of thermal sensing elements is a chip thermistor and has a surface facing the one substrate, In the estimation step, the direction of the fire is estimated based on the detection result and information about the installation environment in which one or more of the detectors are installed. Fire detection method.
A program for causing one or more processors to execute the fire detection method described in any one of claims 10 to 15.

Description

This disclosure generally relates to a fire prevention system, a fire detection method, and a program, and more particularly to a fire prevention system, a fire detection method, and a program equipped with a sensor that detects heat generated by, for example, a fire. Patent Document 1 discloses a fire detector equipped with a single rod-shaped thermistor having a thermistor tip that serves as a heat-sensitive element at its end, as a sensing means. The thermistor is mounted on the underside of the circuit board so that it faces downwards when the fire detector is installed. The fire detector has a structure that covers the outer circumference of the thermistor with openings in the bottom plate and peripheral wall of the protector, allowing ventilation from the detection space towards the thermistor. Japanese Patent Publication No. 2002-352344 Figure 1A is an external perspective view of a sensor included in a disaster prevention system according to one embodiment. Figure 1B is a top view of the same sensor with the back cover removed.Figure 2 is a cross-sectional view of the same sensor.Figure 3A is a block diagram of the detector described above. Figure 3B is a block diagram of the receiver included in the disaster prevention system described above.Figure 4 is a conceptual diagram showing the overall configuration of the disaster prevention system described above.Figure 5 is a flowchart illustrating an example of the operation of the fire detection and estimation processes in the aforementioned detector.Figure 6 is a conceptual diagram illustrating the location identification process in the disaster prevention system described above.Figure 7 is a flowchart illustrating an example of the operation related to location identification processing in the disaster prevention system described above. (1) Overview The figures described in the following embodiments are schematic diagrams, and the ratios of the size and thickness of each component in each figure do not necessarily reflect the actual dimensional ratios. The disaster prevention system 100 according to this embodiment (see Figure 4) comprises one or more detectors 1 (six are shown in Figure 4) and a receiving terminal that communicates with one or more detectors 1 to receive notifications regarding the occurrence of a fire. Here, as an example, it is assumed that the disaster prevention system 100 is configured as an automatic fire alarm system installed in a facility 500 such as an office building (see Figure 6). Therefore, the "receiving terminal" is assumed to be the receiver Y1 of the automatic fire alarm system (see Figures 3B and 4). Facility 500 may include not only office buildings, but also theaters, cinemas, public halls, amusement facilities, multi-purpose complexes, restaurants, department stores, schools, hotels, inns, hospitals, nursing homes, kindergartens, libraries, museums, art galleries, underground shopping areas, train stations, airports, apartment buildings, or detached houses. The receiving terminal is not limited to the receiver Y1 of the automatic fire alarm system. For example, if the facility 500 is a detached house, the receiving terminal may be a residential information panel or a HEMS (Home Energy Management System) controller. Alternatively, the receiving terminal may be an information terminal such as a smartphone, tablet, or personal computer. Or, the receiving terminal may be a server installed outside the facility 500. The detector 1 according to this embodiment is, for example, a fire detector and is equipped with a heat detection unit 3 (see Figures 1B and 3A) that detects heat generated by a fire or the like. In other words, the detector 1 is a detector that has at least the function of detecting heat. However, the detector 1 may also be a so-called composite fire detector that further includes a smoke detection unit for detecting smoke. The detector 1 may further include a detection unit for detecting flames, gas leaks, or the generation of CO (carbon monoxide) due to incomplete combustion. As shown in Figure 1A, the sensor 1 is installed on the mounting surface X11 of a structural element X1 (the ceiling in the illustrated example), which is a building material of the ceiling (or wall, etc.) of the facility 500. As shown in Figure 3A, the sensor 1 according to this embodiment comprises a plurality of heat detection elements 30 and a determination unit 91. Here, as an example, the sensor 1 includes eight heat detection elements 30. The eight heat detection elements 30 are mounted on a substrate 2. As an example, the heat detection elements 30 are chip thermistors that detect the heat of gas flowing in through the opening 7 of the housing 5. The determination unit 91 is configured to determine the occurrence of a fire by comparing multiple heat-related detection values detected by each of the multiple heat-sensing elements 30 with predetermined determination conditions. In other words, the objects compared with the