Rescue operation support system

Abstract

To provide a rescue activity support system capable of safely and rapidly presenting a reachable rescue route to a person needing to be rescued.SOLUTION: A rescue activity support system comprises a rescuer terminal, fire sensors, human sensors, a terminal position detection device, and a server device having a storage section and a control section. The control section includes: route calculation means for calculating a route to a person needing to be rescued based on position information from the terminal position detection device when one of the fire sensors senses the occurrence of a fire and the human sensor senses existence of the person needing to be rescued; area classification means for classifying in-building sensing areas divided with the positions of the fire sensors as reference into danger areas, passage caution areas, and passage easiness areas; rescue route determination means for determining a rescue route with the use of a route calculation result and an area classification result; and transmission means for transmitting a map on which the determined rescue route is represented. The rescue route determination means determines, as the rescue route, the route which does not pass the danger area and also has the least number of passage caution areas on the route.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rescue operation support system that supports rescue efforts by firefighters and other rescue personnel to rescue people who are unable to escape or who have difficulty evacuating on their own (hereinafter referred to as "persons in need of rescue") in the event of a fire within a facility such as a building that is a monitored area. [Background technology]

[0002] When a fire breaks out in a facility such as a building and there is a person in need of rescue, rescuers are naturally required to rescue the person quickly. Therefore, it is desirable to provide accurate information to the rescuers. In the past, an invention has been proposed relating to a rescue operation support system that, when a fire breaks out in a facility such as a building where surveillance devices such as cameras are installed, displays the current location of the rescuer and the location of the person in need of rescue on a map that resembles the floor surface inside the building on the display unit of a mobile device carried by the rescuer (Patent Document 1). In addition, an invention has been proposed regarding a rescue operation support method that, assuming that both the rescuer and the person in need of rescue carry terminals capable of communicating via radio waves, detects the positions of both parties and displays a rescue route that does not pass through the fire site on the terminal carried by the rescuer (Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-006652 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-242882 Summary of the Invention [Problem to be solved by the invention]

[0004] In the invention disclosed in Patent Document 1, even if the person in need of rescue does not have a wireless communication terminal, the rescuer can visually confirm his / her own position on a map displayed on a mobile terminal and quickly head to the person in need of rescue at his / her own discretion. However, even if the route appears to be the shortest, the rescue route determined by the rescuer may not necessarily be appropriate depending on the progress of the fire, which poses a problem in that the information provided may not be appropriate from the viewpoint of safety.

[0005] On the other hand, according to the invention disclosed in Patent Document 2, a rescue route that does not pass through the fire site is displayed on the rescuer's device, allowing both the rescuer and the person in need of rescue to escape relatively safely. However, if the displayed route passes near the fire site, although there is no direct impact from the fire source, the area near the fire site will be affected by heat and smoke after a certain amount of time has passed since the fire started. This poses a problem in that not only the rescuer, who may be unarmed, but even rescuers dressed in heat-resistant clothing, etc., cannot avoid being affected by heat and smoke. Therefore, while a shorter route is preferable, it is desirable to determine a safer rescue route and present it to the rescuer, taking into account the extent of the fire spread and the heat and smoke.

[0006] The present invention has been made with an eye on the above-mentioned problems, and its purpose is to provide a rescue operation support system that can present rescuers with a rescue route that will allow them to reach the location of the person in need of rescue as quickly as possible while prioritizing safety. More specifically, the objective is to provide a rescue operation support system that can avoid areas near the fire site, while evaluating whether candidate routes are suitable for passage, and determine and present to rescuers a safer rescue route that will have as little impact as possible on rescuers and those in need of rescue. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides: A rescue operation support system including a rescuer terminal carried by a rescuer and having a display means, a plurality of fire detectors and a plurality of human body detectors installed inside a building, a terminal position detection device that detects the position of the rescuer terminal, and a server device having a memory unit and a control unit, The storage unit stores in advance map information of the interior of the building including the installation positions of the fire detectors and the human detectors, The control unit a route calculation means for calculating a route from the detected position of the rescuer terminal to the person requiring rescue based on the position information from the terminal position detection device, by referring to the map information, when any of the fire detectors detects the occurrence of a fire and the human body detector detects the presence of the person requiring rescue; an area classification means for classifying the plurality of detection areas into at least one of a danger area, a caution area, or an easy-to-pass area by referring to output information of the fire detectors, using a classification result obtained by dividing the area inside the building into a plurality of detection areas according to the map information based on the positions of the fire detectors; a rescue route determination means for determining a rescue route to be displayed on the rescuer terminal using the calculation result by the route calculation means and the classification result by the area classification means; a transmitting means for transmitting information showing the rescue route determined by the rescue route determining means on a map to the rescuer terminal; and The rescue route determination means is configured to determine, as the rescue route, a route that does not pass through the danger zone and that includes the fewest number of traffic caution zones on the route.

[0008] According to the rescue operation support system having the above configuration, the rescue route determination means determines a rescue route that does not pass through any dangerous areas and that includes the fewest number of traffic caution areas, and the transmission means transmits information showing the determined rescue route on a map to the rescuer terminal, so that the map showing the rescue route can be displayed on the display unit of the rescuer terminal. This allows the rescuer carrying the rescuer terminal to reach the location of the person in need of rescue safely and quickly, thereby avoiding delays in evacuation guidance and rescue.

[0009] Here, preferably, the area classification means If the output of the fire detector in the detection area is equal to or greater than a first threshold, classify the detection area as the danger area; If the output of the fire detector in the detection area is equal to or greater than the second threshold and less than the first threshold, classify the detection area as the traffic caution area; The detection area is configured to be classified as the easy-to-pass area when the output of the fire detector in the detection area is less than a second threshold. With this configuration, areas within a building are divided into multiple detection zones, and the zones are classified into danger zones, caution zones, and easy zones according to the output of the fire detectors, enabling rational and reliable classification. "Fire detector output" refers to the smoke concentration detected by a smoke detector, and the temperature detected by a heat detector.

[0010] Also, preferably, the rescue route determination means further comprises: When a plurality of candidates for the rescue route are obtained that have the same number of traffic caution areas on the route, the candidate with the shortest route length is determined as the rescue route to be displayed on the map. With this configuration, if multiple rescue route candidates with roughly the same conditions are obtained from the standpoint of safety, the candidate with the shortest route length is determined to be the rescue route to be displayed on the map, allowing the person in need of rescue to be rescued quickly.

[0011] Preferably, the storage unit stores in advance a predetermined calculation formula for evaluating the risk level for each detection zone using the output of the fire detector, The calculation formula is set so that the higher the smoke density and / or temperature outputted by the fire detector in the detection area through which the pedestrian passes, and the shorter the distance between the pedestrian and the fire detector that detected the occurrence of a fire, the larger the evaluation value becomes; When a plurality of candidates for the rescue route are obtained, the rescue route determination means The calculation formula is used to find an evaluation value, and the candidate with the smallest average or maximum evaluation value among the plurality of rescue route candidates is determined as the rescue route. According to this configuration, the optimal rescue route is determined from among multiple candidate rescue routes based on an evaluation value calculated using a predetermined formula, allowing for the selection of a safe rescue route with higher accuracy. Furthermore, while avoiding areas near the fire site, the candidate routes are evaluated for suitability for passage, and a safer rescue route that minimizes impact on rescuers and those in need of rescue is determined and presented to rescuers.

[0012] Also, preferably, the terminal location detection device a plurality of transmitters installed inside the building and transmitting at least their own identification codes; a storage means for storing information on the installation locations of the plurality of transmitters in association with the identification codes; and a location specifying means for specifying the location of the rescuer terminal based on the installation location information of the transmitter stored in the storage means and the identification code included in the information received by the rescuer terminal from the transmitter.

[0013] According to the above-described configuration, in a building that already has a location information system (including IMES) that includes a plurality of transmitters and fire detectors installed inside the building and that transmit at least their own identification codes, and a location identification means that identifies the location of a terminal based on the identification code included in the information received from the transmitter, the existing location information system can be used as a terminal location detection device, making it possible to easily and inexpensively build a rescue operation support system with the above-described configuration. [Effects of the Invention]

[0014] According to the rescue operation support system of the present invention, it is possible to present rescuers with rescue routes that prioritize safety and allow them to reach the location of the person in need of rescue as quickly as possible.In addition, it is possible to avoid areas near the fire site, evaluate the suitability of candidate routes, and determine and present to rescuers a safer rescue route that has as little impact on the rescuers and the person in need of rescue as possible. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a block diagram illustrating an example of a rescue operation support system according to an embodiment. [Figure 2] 10 is a flowchart illustrating an example of a rescue support processing procedure in a rescue operation support server included in the rescue operation support system of the embodiment. [Figure 3] 1A to 1C are conceptual diagrams showing examples of how to divide a monitoring area and how to determine a rescue route in a rescue operation support system according to an embodiment. [Figure 4] FIG. 10 is a diagram showing an example of conditions for determining a dangerous area, a cautionary area, and an easy-to-pass area in the rescue operation support system of the embodiment. [Figure 5] 10 is a graph showing an example of a function f1(d) of a parameter X1j in an evaluation value calculation formula in the rescue operation support system of the second embodiment. [Figure 6] 10 is a flowchart illustrating an example of a procedure for calculating the safety level of a rescue route and selecting a route by the rescue operation support server according to the second embodiment. [Figure 7] 1A and 1B show a specific example of a rescue route when the embodiment is applied to a building rescue operation support system, in which (A) is a floor map when there are no traffic caution areas, and (B) is a floor map when there is one danger area and one traffic caution area. [Figure 8] 10A and 10B show a specific example of a rescue route when the embodiment is applied to a building rescue operation support system, in which (A) is a floor map with two dangerous areas and one traffic caution area, and (B) is a floor map with three dangerous areas. DETAILED DESCRIPTION OF THE INVENTION

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rescue operation support system according to an embodiment of the present invention will now be described with reference to the accompanying drawings. Fig. 1 is a block diagram showing an example of the configuration of the rescue operation support system according to the present embodiment. (First embodiment) As shown in FIG. 1, the rescue operation support system of the first embodiment includes beacons (transmitters) 11 distributed at multiple locations within a predetermined area inside a building, motion sensors (human body detectors) 12 distributed at multiple locations within the predetermined area inside the building, mobile terminals (rescue worker terminals) 20 carried by rescue workers that can receive signals (radio waves) from the beacons 11, a location information server 41 that communicates data with the rescue worker terminals 20 via a mobile phone base station 30 and a communication network N such as the Internet, a fire receiver 60 that can receive fire detection signals from fire sensors 50 distributed at multiple locations within the predetermined area inside the building, a fire information server 81 that communicates data with the fire receiver 60 via a gateway (repeater) 70 and the communication network N, and a rescue operation support server 91 that provides rescue support information to the rescue worker terminals 20 via the communication network N to provide information on rescue routes to people in need of rescue.

[0017] Regarding a system that is made up of a beacon 11, a mobile terminal 20, a location information server 41, and a communication network N and that determines the location of people within a monitoring area, if a location information system is already installed, the existing system can be used as is and the rescue operation support server 91 can be added to construct the rescue operation support system of this embodiment. The human presence sensor 12 may be a sensor that detects the presence of a person using infrared rays, visible light, ultrasonic waves, microwaves, etc. Instead of a sensor, a combination of a video camera and a program that processes the captured images to identify people may be used as human body detection means. Detection information from the human presence sensor (human body detection means) 12 is transmitted to the rescue operation support server 91 via a LAN (local area network) or a communication network N.

[0018] The location information server 41 includes a storage device (database) 42 that stores information on the installation locations of the beacons 11 installed within the management area, map information of the management area (floor maps in the case of a building), and the like. On the other hand, the rescue operation support server 91 is equipped with a storage device (database) 92 that stores information (rescuer attribute information) on the attributes of rescuers such as firefighters, including their authority and qualifications, as well as the communication addresses of mobile terminals carried by the rescuers. The rescue operation support server 91 is also connected to a PC (personal computer) 93 equipped with a display device and an input device.

[0019] In this embodiment, the rescue operation support server 91 displays on the display device of the PC 93 a map showing the locations of people in the area determined by the rescue operation support server 91 based on detection information from the human presence sensor 12 when a fire breaks out, and if it determines that there are people who are too late to escape, the user can input information specifying rescuers to be dispatched to the scene to rescue them through the input device. Such processing may also be configured to be performed automatically by a program in the rescue operation support server 91. The location information server 41 and the rescue operation support server 91 may be configured as a single support server. Similarly, the fire information server 81 may be configured as a server shared with the location information server 41 and the rescue operation support server 91.

[0020] The beacon 11 that transmits a wireless signal to the mobile terminal 20 includes a transmitter that periodically transmits unique information, such as its own identification information and facility information (device ID), via a wireless signal to the surrounding area. The signal (beacon signal) wirelessly transmitted by the beacon 11 is sufficient to include at least the identification information of the beacon 11 (the device ID of the transmitter), and may also include information about the area in which it is installed. The communication method of the beacon 11 can be any known communication method, such as Bluetooth (registered trademark) communication, wireless LAN such as WiFi conforming to the IEEE 802.11 standard, infrared communication, or visible light communication.

[0021] The intervals at which the beacons 11 are placed are not particularly limited, but in the following description, it is assumed that the beacons 11 are placed so that the communication range of each adjacent beacon 11 covers the entire space within the building. Specifically, since fire detectors 50 and sprinkler heads are installed at predetermined intervals within a building, a beacon can be installed either built into or attached to these devices, or installed near these devices.

[0022] The mobile terminal 20 can be a device such as a smartphone that has a receiving function for receiving signals from the beacon 11, a wireless communication function, a display unit, and the like. The internal memory of the mobile terminal 20 stores an application program (location information display app) that receives beacon signals wirelessly transmitted from the beacon 11 at regular intervals, extracts identification information (device ID) and the like contained in the beacon signals, detects the received radio wave strength of the beacon signals, and transmits a set of beacon information containing the identification information and the received radio wave strength, as well as identification information (terminal ID) specific to the mobile terminal itself, to the location information server 41, and displays a floor plan (map) based on the floor plan information transmitted from the location information server 41 on the display screen.

[0023] When the fire detector 50 detects an abnormal phenomenon such as heat, smoke, flame, or hazardous gas, it transmits a fire detection signal to the fire receiver 60 via the detector line 51. In the rescue operation support system of this embodiment, the fire detector 50 is assumed to have at least one of a temperature detection function and a smoke density detection function. The fire detector 50 may transmit a fire detection signal with its own installation address attached, or it may be a type of detector that does not attach its installation address to the fire detection signal. The fire detector 50 may have both a temperature detection function and a smoke density detection function, or a detector with a temperature detection function and a smoke density detection function may be separately configured and installed adjacent to each other.

[0024] When the fire receiver 60 receives a fire detection signal from the fire detector 50, it displays a fire detection message on the display unit and controls the ringing of a district bell and the interlocking of smoke control and exhaust. Furthermore, the fire receiver 60 transmits fire information, including information on the location of the fire, detected temperature information, detected smoke density information, etc., to a fire information server 81 via the gateway 70 and the communication network N. The fire information server 81 includes a database 82 that stores information on building facilities and equipment related to fires, such as fire transmitters and fire hydrants, and is configured to transmit this information and fire location information to the location information server 41.

[0025] If the installation address of the fire detector 50 is added to the fire detection signal, the fire receiver 60 identifies the location of the fire based on the installation address. On the other hand, if the installation address of the fire detector 50 is not added to the fire detection signal, the fire receiver 60 identifies the location of the fire based on the sensor line 51 (warning area) that transmitted the fire detection signal. Also, a system is possible in which the gateway 70 is omitted and fire information including the fire location is sent directly from the fire receiver 60 to the fire information server 81. Fire information may also be sent from a device other than the fire receiver 60.

[0026] When information specifying a rescuer to be dispatched to the scene of a fire that has been determined to be too late to escape is input from the input device of the PC 93, the rescue operation support server 91 confirms the current location of the mobile terminal carried by the rescuer, determines a route for the rescuer to travel to the location of the person in need of rescue using the method described below, creates an area map (floor map) showing the determined rescue route, and transmits it to the mobile terminal 20 carried by the rescuer who will be dispatched to the rescue. As a result, an area map image showing the rescue route is displayed on the display unit of the mobile terminal 20 carried by the designated rescuer.

[0027] The following describes how the rescue operation support server 91 of this embodiment determines a route for rescuers to travel to the location of the person in need of rescue. The basic idea behind determining a rescue route for rescuers in this embodiment is to search for a rescue route that can reach the location of the person in need of rescue as quickly as possible while prioritizing safety, and to transmit the route to the rescuer terminal. 2 shows an example of a rescue support process procedure in which rescue routes for rescuers are determined and a map is created and transmitted by the rescue operation support server 91. The process shown in FIG. 2 is started in response to a notification of the occurrence of a fire being transmitted from the fire information server 81 to the rescue operation support server 91.

[0028] When the rescue operation support server 91 receives information about a fire occurring within the monitoring area from the fire information server 81, it requests and obtains from the fire information server 81 information about the location of the fire and information detected by the fire detector (smoke concentration and temperature) (step S1). Next, map information (floor map in the case of a building) of the area where the fire occurred is acquired based on the received fire location information (step S2). The map information may be acquired by extracting and reading out necessary map information from map information of all areas to be monitored that has been stored in advance in database 92 under its own management, or by requesting and receiving necessary map information from database 42 managed by location information server 41.

[0029] Next, the rescue operation support server 91 reads information from the human presence sensors 12 installed in the area on the map acquired in step S2 (step S3), and determines whether there is a person needing rescue (step S4). If it determines that there is no person needing rescue (No), the process returns to step S1. On the other hand, if it is determined in step S4 that there is a person in need of rescue (Yes), the process proceeds to step S5, where the entire area of the acquired map is divided into tiles or a matrix so that one area corresponds to one detector based on the installation location information of the detector, as shown in Fig. 3(A). Note that if map information is stored in a database 92 under its own management, map information to which division information dividing each area into tiles or a matrix has been added may be stored in advance in the database 92.

[0030] Next, based on the information on the location of the fire obtained in step S1, the information detected by the fire detector, the specifications of the fire detector, and laws and regulations related to fires, the sections divided in step S5 are ranked as shown in Figure 4 into dangerous areas a where the smoke concentration and temperature are quite high and traffic should be avoided, areas b where the smoke concentration and temperature are relatively high and caution is required when passing through, and easy-to-pass areas c where the smoke concentration and temperature are not so high (step S6).

[0031] The above-mentioned dangerous area a can also be defined as an area where the output of fire detectors is at a level that should be judged to indicate a fire in accordance with laws and regulations, and where even firefighters wearing firefighting uniforms should avoid passing through the environmental conditions; the caution area b can be defined as an area where trained firefighters wearing ordinary firefighting uniforms can pass through the environmental conditions; and the easy-to-pass area c can be defined as an area where people in need of rescue can pass through relatively safely. Specifically, in the system of this embodiment, areas where the smoke density is 10% / m or more or the temperature is 65°C or more are ranked as dangerous areas a, areas where the smoke density is less than 10% / m but 3% / m or more or the temperature is less than 65°C but 45°C or more are ranked as cautioned areas b, and areas where the smoke density is less than 3% / m and the temperature is less than 45°C are ranked as easy-to-pass areas c. Note that the above threshold values for separating the dangerous areas a and cautioned areas b and the above threshold values for separating the cautioned areas b and easy-to-pass areas c are merely examples and are not limited to the above numerical values.

[0032] Next, the rescue operation support server 91, based on input information from the PC 93 or the like, refers to the database 92 to obtain terminal information of the mobile terminal (rescue worker terminal) 20 carried by the rescue worker (firefighter) heading to the rescue, and based on the terminal information, requests and obtains location information of the terminal from the location information server 41, thereby determining the location of the rescue worker terminal (step S7). Next, a comprehensive search is made for rescue routes that can be reached from the location of the rescue worker terminal to the area where the person in need of rescue is located by passing only through the easy-to-pass area c (step S8). Then, it is determined whether there is a rescue route that can reach the area where the rescue recipient is by passing only through the easy-to-pass zone c (step S9), and if it is determined that there is a rescue route (Yes), the process proceeds to step S10, and map information showing the rescue route R is transmitted to the rescuer terminal 20 obtained in step S7, as shown in Fig. 3(B) (step S10). If there are multiple rescue routes that can reach the area by passing only through the easy-to-pass zone c, the one with the shortest travel distance is selected, and if there are multiple routes with the same travel distance, the route farthest from the dangerous zone a is selected.

[0033] Furthermore, if it is determined in step S9 that there is no rescue route that can be reached by passing only through the easy-to-pass zones c (No), the process proceeds to step S11, where a comprehensive search is performed for rescue routes that can reach the zone where the person in need of rescue is located by passing through the traffic caution zones b. Then, it is determined whether such a rescue route exists (step S12), and if it is determined that there is a rescue route (Yes), the process proceeds to step S13, where map information showing the rescue route R is transmitted to the rescuer terminal 20 acquired in step S7, as shown in Fig. 3(C). Note that if there are multiple rescue routes that can reach the zone where the person in need of rescue is located by passing through the traffic caution zones b, the one with the fewest number of traffic caution zones b that the person in need of rescue passes through is selected, and if there are multiple routes with the same number of traffic caution zones b on the route, the route with the shortest travel distance is selected.

[0034] On the other hand, if it is determined in step S12 that there is no rescue route that can reach the area where the person in need of rescue is located by passing through the caution area b (No), the process proceeds to step S14, and a fire mark is displayed at the location of the fire and map information showing the location of the person in need of rescue is sent to the rescuer terminal 20 obtained in step S7. In addition, the rescuer who received the map (floor map) information showing the rescue route in steps S10 and S13 moves to the area where the person in need of rescue is located according to the rescue route shown on the map. After that, the rescuer may move along the same route as the outbound route, or the rescue operation support server 91 may search for and present a rescue route to the evacuation exit based on the latest detector information, and the rescuer may move along that route.

[0035] Next, a specific example of presentation of a rescue route when the above embodiment is applied to a rescue operation support system for a building will be described using the floor maps of FIGS. Figures 7 and 8 show examples of floor maps showing rescue routes determined by the above-mentioned procedure when a fire breaks out at the location marked with a ♦. In Figures 7 and 8, S0 is the location of the rescuer, and T0 is the location of the person in need of rescue.

[0036] Figure 7(A) is a floor map showing rescue routes when only the detection range of detector D1 near the fire source ◆ is determined to be danger zone a, and other areas are determined to be easy-to-pass zones. In this case, there are three rescue routes from the rescuer's location S0 to the location T0 where the person in need of rescue is located, if there is no fire: R1, R2, and R3. However, route R1, which passes through danger zone a, and route R3, which is longer, are discarded, and route R2 is presented as the recommended route. Figure 7(B) is a floor map showing rescue routes when the monitoring area of detector D2 adjacent to dangerous area a where the fire source ◆ is located is judged to be area b where traffic is careful, and other areas are judged to be areas where traffic is easy. Route R1 that passes through dangerous area a and route R2 that passes through area b where traffic is careful are discarded, and route R3 is presented as the recommended route.

[0037] Figure 8(A) is a floor map showing rescue routes when the monitoring area of detector D2 adjacent to dangerous area a where a fire source ◆ is located is judged to be dangerous area a, the monitoring area of detector D3 is judged to be caution area b, and other areas are judged to be easy-to-pass areas. Routes R1 and R2 that pass through the dangerous area are discarded, and route R3 that passes only through caution area b is presented as the recommended route. Figure 8(B) is a floor map showing rescue routes when the monitoring area of detector D2 adjacent to dangerous area a where the fire source ◆ is located and the area monitored by detector D3 next to it are judged to be dangerous areas, and the other areas are judged to be easy-to-pass areas.The three routes R1, R2, and R3 are discarded, and a floor map without recommended routes is sent.

[0038] From Figures 7 and 8, it can be seen that the presentation of a rescue route for rescuers to reach the person in need of rescue in the embodiment described using Figure 3 can be applied when a fire occurs in an actual building. As described above, the rescue operation support system of this embodiment has the advantage of being able to present rescuers with a rescue route that allows them to reach the location of the person in need of rescue as quickly as possible while prioritizing safety.

[0039] In the rescue operation support system of the above embodiment, the case where the fire detector 50 installed in the monitored area has the function of detecting smoke density and temperature has been described. However, even if the fire detector 50 only has the fire detection function and does not have the function of detecting smoke density and temperature, the above-mentioned concept can be applied as is by, for example, regarding an area adjacent to an area where a fire has been determined to have occurred (danger area a) as a caution area, and thereby rescue workers can be presented with a rescue route that allows them to reach the location of the person in need of rescue while prioritizing safety.

[0040] (Second embodiment) Next, a rescue operation support system according to a second embodiment will be described. In the second embodiment, instead of ranking each area based on threshold values for the smoke concentration and temperature detected by the fire detector 50 as in the first embodiment, the rescue operation support system calculates an evaluation value Index(j) as an index representing the safety level for each area using a predetermined calculation formula, ranks each area based on the calculated evaluation value, and determines a rescue route that can reach the location of the person in need of rescue.

[0041] The calculation formula for the evaluation value Index(j) used in this embodiment is the following formula (1):

number

[0042] In addition, in the above formula (1), X 1jis the value when d is given to function f1(d), which has the distance d between the fire detector and the danger zone for the traffic caution zone j of interest as an independent variable. As the function f1(d), a monotonically decreasing function represented by a straight line that decreases as d increases or a downward convex decreasing curve, as shown in Figure 5, is suitable, but a function that decreases in a stepwise manner is also acceptable. X 2j is given by the temperature in the traffic caution zone j or the ratio of the temperature in the traffic caution zone j to the maximum temperature at which rescuers wearing protective clothing can operate, and X 3j is given by the smoke concentration in traffic warning zone j or the ratio of the smoke concentration in traffic warning zone j to the maximum smoke concentration at which rescuers can operate.

[0043] Weighting factor W 1j and W 2j and W 3j It is advisable to adjust this depending on the durability of the protective clothing worn by the rescuers, the capacity of the oxygen tanks carried by the rescuers, the performance of the gas masks used by the rescuers, etc. Also, X 1j Weighting coefficient W 1j Although it depends on the function f1(d) used, it can be fixed to "1", for example. 2j Weighting coefficient W 2j and X 3j Weighting coefficient W 3j Since the function f1(d) is unitless, X 2j as the ratio of temperatures, X 3j There is no problem when using the ratio of smoke density as 2j as temperature, X 3j When using smoke density as a unit, it is recommended to set it to be unitless.

[0044] Next, a method for calculating the safety level of each rescue route using the evaluation value Index(j) and a method for selecting a route in the second embodiment will be described with reference to the flowchart in Fig. 6. Note that the processing described below is a processing that replaces the processing of steps S12 to S14 in the flowchart described in the first embodiment, and other processing and procedures may be the same as those in the first embodiment.

[0045] When there are multiple rescue routes that can reach the rescuer, as shown in FIG. 6, first, for each of the traffic caution zones on each rescue route, the evaluation value Index(j) is calculated using the above formula (1) (step S21). Next, for each rescue route, the following formula (2) is used.

number

[0046] Next, the average value Index(J) of each rescue route is compared to determine whether the difference between the smallest average value Index(J) and the second smallest average value Index(J) is large (step S23). If it is determined that the difference is large (Yes), the process proceeds to step S24, and a map (floor map) showing the rescue route with the smallest average value Index(J) is transmitted to the rescuer terminal. On the other hand, if it is determined in step S23 that the difference with the smallest one is small (No), the process proceeds to step S25, where the lengths of the rescue routes with the smallest and second smallest average value Index(J) are compared, and a map showing the rescue route with the shorter length (travel distance) is sent to the rescuer terminal (step S25).

[0047] As described above, according to the second embodiment, while avoiding the vicinity of the fire site, the suitability of candidate routes is evaluated, and a safer rescue route that has as little impact on the rescuer and the person in need of rescue as possible is determined and presented to the rescuer. Furthermore, since the safety of the caution zone is determined based on the evaluation value Index(j), there is an advantage that a safe rescue route can be selected and presented to the rescuer with higher accuracy than in the first embodiment. Note that in step S25, the maximum values of Index(j) of the caution zones included in the rescue routes with the smallest and second smallest average value Index(J) may be compared, and a map showing the rescue route with the smaller maximum value may be transmitted to the rescuer terminal.

[0048] While the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments and can be modified as appropriate without departing from the spirit of the present invention. For example, in the above embodiments, each tiled area is ranked into three levels according to the level of danger or safety, but each area may be ranked into four or more levels according to the smoke density or temperature detected by the fire detector 50, and a rescue route that can reach the location of the person in need of rescue may be determined and transmitted to the rescuer terminal.

[0049] In the above embodiment, a system using beacon-based positioning has been exemplified as a method for detecting the position of a mobile device carried by a rescuer, but the present invention is not limited to this. The location information system may be a system using other methods of positioning, such as IMES (Indoor Messaging System). That is, the transmitter is not limited to a beacon and may be an IMES transmitter, etc. Alternatively, GPS information acquired by the mobile device may be used as the location information. Furthermore, in the above embodiment, a building is assumed to be the area to be monitored, but the present invention can also be applied to cases where the area to be monitored is a facility other than a building. [Explanation of symbols]

[0050] 10. Rescue operation support system 11 Beacon (transmitter) 12 Human Sensor (Human Body Detector) 20 Mobile terminal (rescuer terminal) 41 Location Server 42 databases 50 Fire detector 60 Fire Receiver 81 Fire Information Server 82 databases 91 Rescue Operation Support Server 92 databases 93 PC (Personal Computer)

Claims

1. A rescue operation support system including a rescuer terminal carried by a rescuer and having a display means, a plurality of fire detectors and a plurality of human body detectors installed inside a building, a terminal position detection device that detects the position of the rescuer terminal, and a server device having a memory unit and a control unit, The storage unit stores in advance map information of the interior of the building including the installation positions of the fire detectors and the human detectors, The control unit a route calculation means for calculating a route from the detected position of the rescuer terminal to the person requiring rescue based on the position information from the terminal position detection device, by referring to the map information, when any of the fire detectors detects the occurrence of a fire and the human body detector detects the presence of the person requiring rescue; an area classification means for classifying the plurality of detection areas into at least one of a danger area, a caution area, or an easy-to-pass area by referring to output information of the fire detectors, using a classification result obtained by dividing the area inside the building into a plurality of detection areas according to the map information based on the positions of the fire detectors; a rescue route determination means for determining a rescue route to be displayed on the rescuer terminal using the calculation result by the route calculation means and the classification result by the area classification means; a transmitting means for transmitting information showing the rescue route determined by the rescue route determining means on a map to the rescuer terminal; and The area classification means If the output of the fire detector in the detection area is equal to or greater than a first threshold, the detection area is classified as the danger area; If the output of the fire detector in the detection area is equal to or greater than the second threshold and less than the first threshold, classify the detection area as the traffic caution area; classifying the detection area as the easy-to-pass area when the output of the fire detector in the detection area is less than a second threshold; The rescue route determination means determines, as the rescue route, a route that does not pass through the danger zone and that includes the fewest number of traffic caution zones on the route. A rescue operation support system characterized by the above.

2. A rescue operation support system comprising a rescuer terminal carried by a rescuer and having a display means, a plurality of fire detectors and human body detectors installed inside a building, a terminal position detection device that detects the position of the rescuer terminal, and a server device having a memory unit and a control unit, The storage unit stores in advance map information of the interior of the building including the installation positions of the fire detectors and the human detectors, The control unit a route calculation means for calculating a route from the detected position of the rescuer terminal to the person requiring rescue based on the position information from the terminal position detection device, by referring to the map information, when any of the fire detectors detects the occurrence of a fire and the human body detector detects the presence of the person requiring rescue; an area classification means for classifying the plurality of detection areas into at least one of a danger area, a caution area, or an easy-to-pass area by referring to output information of the fire detectors, using a classification result obtained by dividing the area inside the building into a plurality of detection areas according to the map information based on the positions of the fire detectors; a rescue route determination means for determining a rescue route to be displayed on the rescuer terminal using the calculation result by the route calculation means and the classification result by the area classification means; a transmitting means for transmitting information showing the rescue route determined by the rescue route determining means on a map to the rescuer terminal; and The storage unit stores in advance a predetermined calculation formula for evaluating the risk level for each of the detection zones using the output of the fire detector, The calculation formula is set so that the higher the smoke density and / or temperature outputted by the fire detector in the detection area through which the pedestrian passes, and the shorter the distance between the pedestrian and the fire detector that detected the occurrence of a fire, the larger the evaluation value becomes; The rescue route determination means determining, as the rescue route, a route that does not pass through the danger zone and that includes the fewest number of traffic caution zones on the route; When a plurality of candidates for the rescue route are obtained, an evaluation value is calculated using the calculation formula, and the candidate with the smallest average or maximum evaluation value among the plurality of candidates for the rescue route is determined as the rescue route. A rescue operation support system characterized by the above.

3. The rescue route determination means further 3. The rescue operation support system according to claim 1, wherein when multiple candidates for the rescue route are obtained that have the same number of caution zones on the route, the candidate with the shortest route length is determined to be the rescue route to be displayed on the map.

4. The terminal position detection device a plurality of transmitters installed inside the building and transmitting at least their own identification codes; a storage means for storing information on the installation locations of the plurality of transmitters in association with the identification codes; a location specifying means for specifying the location of the rescuer terminal based on installation location information of the transmitter stored in the storage means and the identification code included in information received by the rescuer terminal from the transmitter; 4. The rescue operation support system according to claim 1, wherein the rescue operation support system comprises:

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