JP2023026167A - Rescue activity support system - Google Patents

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

The present invention is an activity in which a rescuer such as a firefighter rescues a person who has failed to escape or who is difficult to evacuate on their own (hereinafter referred to as a person requiring rescue) when a fire breaks out in a facility such as a building that serves as a surveillance area. It relates to a rescue operation support system that supports.

When a fire breaks out in a facility such as a building and there is a person in need of rescue, rescuers naturally need to be quick to rescue the person in need of rescue. Therefore, it is desirable to provide accurate information to rescuers. Conventionally, when a fire breaks out in a facility such as a building where monitoring devices such as cameras are installed, the current location of the rescuer and the location of the person requiring rescue are displayed on the display of the mobile terminal held by the rescuer. An invention related to a rescue activity support system that displays on a map simulating an internal floor surface has been proposed (Patent Document 1).
In addition, on the premise that both the rescuer and the person requiring rescue have terminals that can communicate with radio waves, the positions of both are detected, and the rescuer possesses a rescue route that does not pass through the fire scene. An invention related to a rescue activity support method that displays information on a terminal has been proposed (Patent Document 2).

JP 2016-006652 A JP 2011-242882 A

In the invention disclosed in Patent Document 1, even if the person requiring rescue does not possess a wireless communication terminal or the like, the rescuer visually confirms his/her own position on the map displayed on the portable terminal. It is possible to quickly go to the person who needs rescue by one's own judgment. However, even if the route appears to be the shortest, the rescue route determined by the rescuers may not necessarily be appropriate depending on the progress of the fire spread. There is a problem that there is

On the other hand, according to the invention disclosed in Patent Document 2, since a rescue route that does not pass through a fire scene is displayed on a terminal possessed by a rescuer, both the rescuer and the person requiring rescue can escape relatively safely. can be done. However, if the displayed route passes through the vicinity of the fire outbreak site, although there is no direct impact from the fire source, after a certain amount of time has passed since the fire occurred, heat and smoke will also affect the vicinity of the fire occurrence site. will reach. Therefore, there is a problem that not only the unarmed rescuers but also the rescuers dressed in heat-resistant clothing cannot avoid being affected by heat and smoke. Therefore, although the route length should be as short as possible, it is desirable to determine a safer rescue route and present it to the rescuer, taking into account the degree of fire spread, heat and smoke.

The present invention has been made in view of the above-mentioned problems, and its object is to provide rescuers with a rescue route that can reach the location of the person requiring rescue as quickly as possible while giving priority to safety. It is to provide a rescue operation support system capable of presenting.
More specifically, while avoiding the vicinity of the fire scene, evaluate whether the candidate route is suitable for passage, and choose a safer rescue route that has as little impact on rescuers and people requiring rescue as possible. To provide a rescue activity support system capable of determining and presenting to a rescuer.

In order to solve the above problems, the present invention
a rescuer terminal possessed by a rescuer and having display means; a plurality of fire sensors and human body sensors respectively installed inside a building; a terminal position detection device for detecting the position of the rescuer terminal; A rescue operation support system comprising a server device having a control unit,
The storage unit pre-stores map information of the inside of the building including the respective installation positions of the fire detector and the human body detector,
The control unit
When any of the fire detectors detects the occurrence of a fire and the human body detector detects the presence of a person requiring rescue, the detection position of the rescuer terminal is detected based on the position information from the terminal position detection device. a route calculation means for calculating a route to the person requiring rescue by referring to the map information;
Based on the position of the fire sensor, the area inside the building is divided into a plurality of sensing areas according to the map information, and the output information of the fire sensor is referred to, and the plurality of sensing areas are at least dangerous. an area classification means for classifying into either an area, a restricted traffic area or an easy traffic area;
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 zone classification means;
a transmitting means for transmitting information representing the rescue route determined by the rescue route determining means on a map to the rescuer terminal;
has
The rescue route determining means is configured to determine, as the rescue route, a route that does not pass through the dangerous area and that includes the least number of caution areas.

According to the rescue operation support system having the configuration described above, the rescue route determination means determines the route that does not pass through the dangerous area and includes the fewest cautionary areas on the route as the rescue route, and determines the determined rescue route. is transmitted to the rescuer terminal by the transmitting means, the map showing the rescue route can be displayed on the display unit of the rescuer terminal. As a result, the rescuer who has the rescuer terminal can safely and quickly reach the place where the person in need of rescue is, thereby avoiding delays in evacuation guidance and rescue.

Here, desirably, the area classification means
classifying the sensing area as the dangerous area when the output of the fire sensor in the sensing area is equal to or greater than a first threshold;
When the output of the fire sensor in the sensing area is greater than or equal to a second threshold and less than the first threshold, classifying the sensing area into the caution zone;
The sensing area is configured to be classified as the accessible area when the output of a fire sensor in the sensing area is less than a second threshold.
According to this configuration, according to the size of the output of the fire detectors in a plurality of sensing areas that divide the area inside the building, it is classified into either a dangerous area, a traffic caution area, or an easy traffic area. It is possible to perform accurate and reliable classification. "Fire detector output" means the smoke concentration detected by the smoke detector and the temperature detected by the heat detector.

Also, desirably, the rescue route determination means further includes:
When a plurality of candidates for the rescue route having the same number of traffic caution zones on the route are obtained, the candidate with the shortest route length is determined as the rescue route to be indicated on the map. do.
According to this configuration, when a plurality of rescue route candidates with substantially the same conditions from the viewpoint of safety are obtained, the candidate with the shortest route length is determined as the rescue route to be displayed on the map. It is possible to rescue the person in need of rescue immediately.

Further, desirably, the storage unit stores in advance a predetermined calculation formula for evaluating the degree of danger for each sensing area using the output of the fire sensor,
The calculation formula is such that the higher the smoke concentration and/or temperature output by the fire detector in the sensing area through which the vehicle passes and the shorter the distance from the fire detector that detected the outbreak of fire, the greater the evaluation value. is set and
When a plurality of candidates for the rescue route are obtained, the rescue route determination means
An evaluation value is obtained using the formula, and a candidate having the smallest average value or maximum value of the evaluation values among the plurality of rescue route candidates is determined as the rescue route.
According to this configuration, since the optimum rescue route is determined from a plurality of rescue route candidates based on the evaluation value calculated using the predetermined formula, the safe rescue route can be selected with higher accuracy. be able to. In addition, while avoiding the vicinity of the fire scene, evaluate whether the candidate route is suitable for passage or not, and decide a safer rescue route with less impact on rescuers and people requiring rescue as much as possible. Can be presented to lifeguards.

Also, desirably, the terminal position detection device
a plurality of transmitters installed inside the building and transmitting at least their own identification codes;
storage means for storing installation position information of the plurality of transmitters in association with the identification code;
Position identification for identifying the position of the rescuer terminal based on the installation position 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. It should consist of means and .

According to the above configuration, a plurality of transmitters and fire detectors installed inside the building that transmit at least their own identification code, and the location of the terminal based on the identification code included in the information received from the transmitter. In buildings where a location information system (including IMES) is already installed, the existing location information system can be used as a terminal location detection device. It is possible to construct a rescue activity support system having such a configuration.

According to the rescue operation support system according to the present invention, it is possible to present a rescuer with a rescue route that can reach a place where a rescuer is present as quickly as possible while giving priority to safety. In addition, while avoiding the vicinity of the fire scene, evaluate whether the candidate route is suitable for passage or not, and decide a safer rescue route with less impact on rescuers and people requiring rescue as much as possible. There is an effect that it can be presented to a rescuer.

It is a block diagram showing an example of a rescue operation support system of an embodiment. It is a flow chart which shows an example of a rescue support processing procedure in a rescue support server which constitutes a rescue support system of an embodiment. (A) to (C) are conceptual diagrams showing examples of how to divide a monitoring area and how to determine a rescue route in the rescue activity support system of the embodiment. It is a figure which shows an example of the conditions of judgment of a dangerous area, a traffic caution area, and an easy traffic area in the rescue operation support system of embodiment. 9 is a graph showing an example of function f1(d) of parameter X1j of the evaluation value calculation formula in the rescue activity support system of the second embodiment; FIG. 11 is a flow chart showing an example of a rescue route safety degree calculation and route selection processing procedure by a rescue activity support server according to a second embodiment; FIG. A specific example of rescue route presentation when the embodiment is applied to a building rescue activity support system, (A) is a floor map when there is no caution zone, and (B) is a dangerous area and a caution zone. is a diagram showing a floor map when there is one each. It shows a specific example of the presentation of the rescue route when the embodiment is applied to the rescue activity support system of the building. ) is a diagram showing a floor map when there are three dangerous areas.

An embodiment of a rescue activity support system to which the present invention is applied will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a rescue activity support system according to this embodiment.
(First embodiment)
The rescue activity support system of the first embodiment, as shown in FIG. Human sensors (human body detectors) 12 distributed and arranged in a plurality of areas within the area, and mobile terminals (rescuer terminal) 20, a mobile phone base station 30 and a location information server 41 that performs data communication with the rescuer terminal 20 via a communication network N such as the Internet; Fire information for performing data communication between a fire receiver 60 capable of receiving a fire detection signal from the installed fire detector 50 and the fire receiver 60 via a gateway (relay) 70 and a communication network N It is composed of a server 81, a rescue operation support server 91 that provides rescue support information for providing information on a rescue route to a person requiring rescue to a rescuer terminal 20 via a communication network N, and the like.

As for the system for grasping the position of a person existing in the monitored area, which is composed of the beacon 11, the portable terminal 20, the position information server 41, and the communication network N, if there is a position information system already installed, By using the existing system as it is and adding the rescue activity support server 91, the rescue activity support system of this embodiment can be constructed.
As the human sensor 12, there is a sensor that detects the presence of a person using infrared rays, visible light, ultrasonic waves, microwaves, or the like. Instead of the sensor, a combination of a video camera and a program having a function of processing captured images and determining a person may be used as the human body detection means. Detection information of the human sensor (human body detection means) 12 is transmitted to the rescue activity support server 91 via a LAN (local area network) or communication network N. FIG.

The location information server 41 has a storage device (database) 42 that stores installation location information of the beacons 11 installed in the management area, map information of the management area (floor map in the case of a building), and the like.
On the other hand, the rescue activity support server 91 has a storage device (database) 92 that stores information (rescuer attribute information) on attributes such as rescuer authority and qualifications of firefighters and communication addresses of portable terminals possessed by rescuers. It has A PC (personal computer) 93 having a display device and an input device is connected to the rescue activity support server 91 .

In this embodiment, the display device of the PC 93 displays a map showing the positions of people in the area grasped by the rescue activity support server 91 based on the detection information from the human sensor 12 when a fire breaks out. When it is determined that there is a person in need of help, information designating a rescuer to go to the site for rescue can be input from the input device. Such processing may be configured to be automatically performed by a program of the rescue activity support server 91 .
Also, the location information server 41 and the rescue activity support server 91 may be configured as one support server. Similarly, the fire information server 81 may be configured as a common server with the location information server 41 and the rescue activity support server 91 .

The beacon 11 that transmits a radio signal to the mobile terminal 20 has a transmitting unit that periodically transmits a radio signal containing unique information such as its own identification information and equipment information (equipment ID) to the surroundings. A signal (beacon signal) transmitted wirelessly by the beacon 11 should include at least identification information (the device ID of the transmitter) of the beacon 11, and further includes information about the area in which the beacon 11 is installed. Also good. As the communication method of the beacon 11, for example, known communication methods such as Bluetooth (registered trademark) communication, wireless LAN such as WiFi conforming to the IEEE 802.11 standard, infrared communication, and visible light communication can be used.

Although the intervals at which the beacons 11 are arranged are not particularly limited, in the following description, it is assumed that the beacons 11 are arranged so that the communication range of each adjacent beacon 11 can cover the space inside the building.
Specifically, since fire detectors 50 and sprinkler heads are originally installed at predetermined intervals in the building, beacons installed in the form of being built in or added to those devices or near those devices A beacon attached in the form of installation can be used.

The mobile terminal 20 can use a device such as a smartphone having a reception function for receiving signals from the beacon 11, a wireless communication function, a display unit, and the like.
In the internal memory of the mobile terminal 20, a beacon signal that is periodically transmitted wirelessly from the beacon 11 is received, and identification information (equipment ID) and the like included in the beacon signal is extracted. A process of detecting the intensity and transmitting a set of beacon information including identification information and received radio wave intensity and identification information (terminal ID) unique to the mobile terminal to the location information server 41; An application program (positional information display application) for executing processing for displaying a floor plan (map) based on floor plan information on the screen of the display unit is stored.

The fire sensor 50 sends a fire detection signal to the fire receiver 60 via the sensor line 51 when it detects the occurrence of an abnormal phenomenon such as heat, smoke, flame, or harmful gas. In addition, in the rescue operation support system of the present embodiment, as the fire sensor 50, a sensor having at least one of a temperature detection function and a smoke density detection function is used. The fire sensor 50 may transmit the fire detection signal with its installation address added thereto, or may be a sensor that does not add its own installation address to the fire detection signal. As the fire sensor 50, one having both the function of detecting temperature and the function of detecting smoke density may be used, or the sensor having the function of detecting temperature and the sensor having the function of detecting smoke density may be configured separately. , both sensors may be placed adjacent to each other.

When the fire receiver 60 receives a fire detection signal from the fire detector 50, the fire receiver 60 displays a fire detection display on the display unit, and performs control such as ringing of a district bell and interlocking with smoke prevention. Furthermore, the fire receiver 60 transmits fire information including fire location information, detected temperature information, detected smoke density information, etc. to the fire information server 81 via the gateway 70 and the communication network N. FIG. The fire information server 81 has 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. be done.

When the installation address of the fire sensor 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 location of the fire is specified based on the sensor line 51 (protected area) that transmitted the fire detection signal. A system is also possible in which the gateway 70 is omitted and the fire information including the location of the fire is directly transmitted from the fire receiver 60 to the fire information server 81 . The fire information may be transmitted from a device other than the fire receiver 60. FIG.

When the rescue activity support server 91 receives information from the input device of the PC 93 that designates a rescuer to go to the site for rescue when it is determined that there is a delay in evacuating when a fire breaks out, the portable terminal possessed by the rescuer is input. After confirming the current position of the rescuer, determine the route for the rescuer to move to the location of the person requiring rescue by the method described below, and create an area map (floor map) displaying the determined rescue route. and transmits it to the mobile terminal 20 possessed by the rescuer who is sent for rescue. As a result, the in-area map image showing the rescue route is displayed on the display unit of the mobile terminal 20 possessed by the designated rescuer.

A method of determining a route for a rescuer to move to a place where a rescuer is present by the rescue activity support server 91 of this embodiment will be described below. The basic idea of determining the rescue route for the rescuer in this embodiment is to search for a rescue route that can reach the location of the person requiring rescue as quickly as possible while giving priority to safety, and to transmit it to the rescuer terminal. at the point.
FIG. 2 shows an example of a rescue support processing procedure in which the rescue activity support server 91 determines a rescue route for a rescuer, creates a map, and transmits the map. The process shown in FIG. 2 is started when the fire information server 81 transmits the occurrence of fire to the rescue activity support server 91 .

When the rescue activity support server 91 receives the information of the fire occurrence in the monitored area from the fire information server 81, the rescue activity support server 91 provides the fire information server 81 with information on the location of the fire occurrence and detection information (smoke density and temperature) of the fire detector. is requested and obtained (step S1).
Subsequently, map information (floor map in the case of a building) of the area where the fire broke out is acquired based on the received fire breakout position information (step S2). Map information may be obtained by storing map information of all areas to be monitored in advance in the database 92 under its own management and extracting and reading necessary information, or the location information server 41 manages the map information. The location information server 41 may be requested to receive necessary map information from among the map information stored in the database 42 .

Next, the rescue activity support server 91 reads the information of the human sensor 12 installed in the area on the map acquired in step S2 (step S3), and determines whether or not there is a person requiring rescue (step S4). ). If it is determined that there is no person requiring rescue (No), the process returns to step S1.
On the other hand, if it is determined in step S4 that there is a person requiring rescue (Yes), the process proceeds to step S5, and as shown in FIG. It is partitioned into tiles or a matrix, with one area corresponding to a sensor. When the map information is stored in the database 92 under its own management, the database 92 stores in advance the map information added with division information divided into tiles or matrices for each area. can be

Next, based on the fire location information and fire sensor detection information acquired in step S1, the specifications of the fire sensor, and the laws and regulations related to fire, each segment divided in step S5 is displayed as shown in FIG. Danger zone a where smoke density and temperature are considerably high and should be avoided; passing caution zone b where smoke density and temperature are relatively high and caution is required to pass through; and smoke density and temperature are not so high. It ranks the easily passable zone c (step S6).

In the above dangerous zone a, the output of the fire detector is at a level where it should be judged that a fire has occurred in light of laws and regulations, and even firefighters wearing firefighting uniforms should avoid passing through. Zone b is an area in which firefighters wearing general firefighting uniforms and have undergone training are permitted to pass through, and easy-to-pass zone c It can also be defined as an area in which environmental conditions permit relatively safe passage for rescuers.
Specifically, in the system of the present embodiment, an area with a smoke concentration of 10%/m or more or a temperature of 65°C or more is a dangerous area a, and a smoke concentration of less than 10%/m or 3%/m or more or a temperature Areas where the temperature is less than 65°C and 45°C or higher are ranked as traffic caution 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 passage areas c. Note that the above-mentioned threshold value for separating the dangerous zone a and the caution zone b and the above-mentioned threshold value for separating the caution zone b and the easy passage zone c are examples, and are not limited to the above numerical values.

Next, the rescue activity support server 91 refers to the database 92 based on the input information from the PC 93 or the like, and obtains the terminal information of the portable terminal (rescuer terminal) 20 possessed by the rescuer (firefighter) heading for rescue. Then, based on the terminal information, the location information of the terminal is requested to the location information server 41 and acquired, and the location of the rescuer terminal is grasped (step S7). Subsequently, a comprehensive search is made for a rescue route that can be reached from the position of the rescuer terminal to the area where the rescuer is located by passing through only the easy-to-pass area c (step S8).
Then, it is determined whether or not there is a rescue route that can pass through only the easy-to-pass zone c and reach the zone where the rescuer is located (step S9), and if it is determined that there is a rescue route (Yes), the process proceeds to step S10. Then, as shown in FIG. 3B, the map information indicating the rescue route R is transmitted to the rescuer terminal 20 acquired in step S7 (step S10). In addition, if there are multiple rescue routes that can be reached by passing only through the easy-to-pass zone c, select the one with the shortest travel distance among them, and if there are multiple routes with the same travel distance, it is dangerous. Choose the route that is the furthest from area a.

If it is determined in step S9 that there is no rescue route that can be reached by passing only through the easy passage area c (No), the process proceeds to step S11, and if the passage is through the caution zone b, the area where the rescuer is present. Comprehensive search for rescue routes that can reach Then, it is determined whether or not there is such a rescue route (step S12), and if it is determined that there is such a rescue route (Yes), the process proceeds to step S13, and as shown in FIG. The obtained map information is transmitted to the rescuer terminal 20 acquired in step S7. In addition, if there are multiple rescue routes that can reach the area where the rescuer is located by passing through the caution zone b, select the one with the least number of caution zone b. , when there are a plurality of routes with the same number of traffic caution zones b, the route with the shortest travel distance is selected.

On the other hand, if it is determined in step S12 that there is no rescue route that can reach the area where the rescuer is located by passing through the caution zone b (No), the process proceeds to step S14, and a fire mark is placed at the fire occurrence position. to the rescuer terminal 20 obtained in step S7.
The rescuer who receives the map (floor map) information indicating the rescue route in steps S10 and S13 moves to the area where the rescuer is located following the rescue route shown on the map. After that, you may move on the same route as the outward route, or the rescue activity support server 91 again searches for and presents a rescue route to the evacuation port based on the latest sensor information, and moves according to it. Also good.

Next, using the floor maps of FIGS. 7 and 8, a specific example of rescue route presentation when the above-described embodiment is applied to a building rescue operation support system will be described.
FIGS. 7 and 8 show examples of floor maps showing rescue routes searched and determined by the above-described procedure when a fire breaks out in places indicated by ♦ marks. 7 and 8, S0 is the position where the rescuer is, and T0 is the position where the person requiring rescue is.

FIG. 7(A) is a floor map showing a rescue route when only the detection range of the detector D1 near the fire source is designated as a dangerous zone a, and other zones are judged to be easy-to-pass zones. There are three rescue routes R1, R2, and R3 if there is no fire from the position S0 where the rescuer is located to the position T0 where the rescuer is located. It is discarded and route R2 is presented as the recommended route.
FIG. 7(B) shows the rescue route when the monitoring range of the sensor D2 adjacent to the dangerous zone a with the fire source ◆ is judged to be the traffic caution zone b, and the other zones are judged to be easy traffic zones. In the illustrated floor map, the route R1 passing through the dangerous zone a and the route R2 passing through the caution zone b are discarded, and the route R3 is presented as the recommended route.

In FIG. 8(A), the monitoring range of the sensor D2 adjacent to the dangerous zone a with the fire source ◆ is determined as the dangerous zone a, the monitoring range of the sensor D3 is determined as the traffic caution zone b, and other than that. The zone is a floor map showing rescue routes when it is determined to be an easy-to-pass zone. Routes R1 and R2 that pass through the dangerous zone are discarded, and route R3 that passes only through the caution zone b is presented as the recommended route. be done.
In FIG. 8(B), the monitoring range of the sensor D2 adjacent to the dangerous zone a with the fire source ◆ and the sensor D3 next to it is judged as the dangerous zone, and the other zone is judged as the easy passage zone. Three routes R1, R2, and R3 are discarded, and a floor map without recommended routes is transmitted.

From FIGS. 7 and 8, it can be seen that the presentation of a rescue route for a rescuer that can reach a person requiring rescue according to the embodiment described with reference to FIG. 3 can be applied when a fire breaks out in an actual building. I understand.
As described above, according to the rescue operation support system of the present embodiment, it is possible to present a rescuer with a rescue route that can reach the location of the person requiring rescue as quickly as possible while giving priority to safety. There is an advantage.

In the rescue operation support system of the above embodiment, the fire sensor 50 installed in the monitoring target area has a function of detecting smoke concentration and temperature. Even if only the detection function is provided and the function to detect smoke concentration and temperature is not provided, for example, the area adjacent to the area judged to have a fire (dangerous area a) should be regarded as a traffic caution area. , the above-described concept can be applied as it is, whereby a rescuer can be presented with a rescue route that can reach the place where the rescuer is located while giving priority to safety.

(Second embodiment)
Next, a rescue activity support system according to the second embodiment will be described.
In the rescue operation support system of the second embodiment, instead of ranking each area by threshold values of the smoke concentration and temperature detected by the fire detector 50 as in the first embodiment, as an index representing the degree of safety for each area The evaluation value Index(j) is calculated using a predetermined formula, each area is ranked based on the calculated evaluation value, and a rescue route that can reach the location of the person requiring rescue is determined. be.

で表わされる。上記式（１）において、Ｘはパラメータ、ＷはＸの重み係数、ｉはパラメータＸの種類を示す記号、ｊは区分けされた区域を区別するための記号であり、本実施形態においては、ｉは１，２，３のいずれか値をとる。上記式は、安全であるほど評価値Index(j)が小さな値となるように設定されている。なお、評価値Index(j)を、危険度を表わす指標として定義するようにしても良い。 The formula for calculating the evaluation value Index(j) used in this embodiment is the following formula (1)

is represented by In the above formula (1), X is a parameter, W is a weighting factor of X, i is a symbol indicating the type of parameter X, and j is a symbol for distinguishing the divided areas. takes a value of 1, 2, or 3. The above formula is set so that the evaluation value Index(j) becomes smaller as the security increases. Note that the evaluation value Index(j) may be defined as an index representing the degree of risk.

In the above formula (1), X _1j is the value obtained when d is given to the function f1(d) in which the distance d between the fire detector and the dangerous area for the traffic caution area j of interest is the independent variable. As f1(d), as shown in FIG. 5, a monotonically decreasing function represented by a straight line that decreases as d increases or a downwardly convex decreasing curve is suitable. good.
X _2j is given by the ratio between the temperature in the caution zone j or the temperature in the caution zone j and the maximum temperature at which rescuers wearing protective clothing can work, and X _3j is the smoke concentration or the caution zone j It is given by the ratio of the smoke density of j to the maximum smoke density at which rescuers can operate.

The weighting coefficients _W1j , _W2j , and _W3j are preferably adjusted according to the robustness of the protective clothing worn by the rescuers, the capacity of the oxygen cylinders carried by the rescuers, the performance of the gas masks used by the rescuers, and the like.
Also, the weighting factor W _1j of X _1j depends on the function f1(d) used, but can be fixed to "1", for example. The weighting factor _W2j of _X2j and the _weighting factor _W3j of X3j are problematic when using the ratio of temperature as _X2j and the ratio of smoke density as _X3j , since the function f1(d) is unitless. No, but when using temperature as X _2j and smoke density as X _3j , it is better to set them to be unitless.

Next, the method of calculating the degree of safety of each rescue route and the method of selecting a route using the evaluation value Index(j) in the second embodiment will be described with reference to the flowchart of FIG. Note that the processing described below is processing performed instead of 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 in the first embodiment.

を用いて、通行する複数の区域の評価値Index(j)の平均値Index(J)を算出する（ステップＳ２２）。なお、ｊは各救助経路上の区域の数であり、ｊの最大値ｍは各救助経路によって異なる。また、平均値Index(J)は、通行注意区域を通行せざるを得ないにしても、救助経路全体として通過する区域は安全そうであるか危険そうであるかの判断の目安となる。 When there are a plurality of rescue routes that can reach the person requiring rescue, as shown in FIG. 6, first, the evaluation value Index(j) is calculated using the above formula (1) for each caution zone on each rescue route. Calculate (step S21). Next, for each rescue route, the following formula (2)

is used to calculate the average value Index(J) of the evaluation values Index(j) of a plurality of sections to be passed (step S22). Note that j is the number of zones on each rescue route, and the maximum value m of j differs depending on each rescue route. In addition, the average value Index(J) can be used as a criterion for judging whether the area through which the rescue route as a whole is likely to be safe or dangerous, even if the vehicle has no other choice but to travel through a cautionary area.

Next, the average value Index(J) of each rescue route is compared with each other, and it is determined whether or not there is a large difference between the smallest average value Index(J) and the second smallest average value Index(J) (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 from the smallest one is small (No), the process proceeds to step S25, where the rescue route lengths of the smallest average value Index(J) and the second smallest average value Index(J) are compared. A map showing the rescue route with the shorter distance (moving distance) is transmitted to the rescuer terminal (step S25).

As described above, according to the second embodiment, while avoiding the vicinity of the fire scene, it is evaluated whether or not the candidate route is suitable for passage, and as much as possible, the rescuer and the rescuer It is possible to determine a safer rescue route with less impact on the body and present it to the rescuer. In addition, since the degree of safety in the traffic caution zone is determined based on the evaluation value Index(j), it is possible to select a safe rescue route with higher accuracy than in the first embodiment and present it to the rescuer. It has the advantage of being able to In step S25, the maximum values of Index(j) of the caution zone included in the rescue route with the smallest average value Index(J) and the second smallest average value Index(J) are compared with each other. A map showing the smaller rescue route may be transmitted to the rescuer terminal.

Although 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 scope of the invention. For example, in the above-described embodiment, each area divided into tiles is classified into three levels according to the degree of danger or safety. A rescue route that can reach the place where the rescuer is located may be determined by ranking into four or more stages and transmitted to the rescuer terminal.

Further, in the above embodiment, as a method for detecting the position of a mobile terminal held by a rescuer, a system using positioning by a beacon was exemplified, but the position information system is not limited to this. A system that utilizes positioning by other methods such as System) may also be used. That is, the transmitter is not limited to a beacon, and may be an IMES transmitter or the like. Alternatively, GPS information acquired by the mobile terminal may be used as the location information.
In addition, in the above embodiment, the monitoring target area is assumed to be a building, but the present invention can also be applied when the monitoring target area is a facility other than a building.

10 Rescue activity support system 11 Beacon (transmitter)
12 human sensor (human body detector)
20 mobile terminal (rescuer terminal)
41 Location Information Server 42 Database 50 Fire Detector 60 Fire Receiver 81 Fire Information Server 82 Database 91 Rescue Activity Support Server 92 Database 93 PC (Personal Computer)

Claims (5)

a rescuer terminal possessed by a rescuer and having display means; a plurality of fire sensors and human body sensors respectively installed inside a building; a terminal position detection device for detecting the position of the rescuer terminal; A rescue operation support system comprising a server device having a control unit,
The storage unit pre-stores map information of the inside of the building including the respective installation positions of the fire detector and the human body detector,
The control unit
When any of the fire detectors detects the occurrence of a fire and the human body detector detects the presence of a person requiring rescue, the detection position of the rescuer terminal is detected based on the position information from the terminal position detection device. a route calculation means for calculating a route to the person requiring rescue by referring to the map information;
Based on the position of the fire sensor, the area inside the building is divided into a plurality of sensing areas according to the map information, and the output information of the fire sensor is referred to, and the plurality of sensing areas are at least dangerous. an area classification means for classifying into either an area, a restricted traffic area or an easy traffic area;
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 zone classification means;
a transmitting means for transmitting information representing the rescue route determined by the rescue route determining means on a map to the rescuer terminal;
has
The rescue operation support system, wherein the rescue route determining means determines, as the rescue route, a route that does not pass through the dangerous area and includes the least number of caution areas. The zone classification means
classifying the sensing area as the dangerous area when the output of the fire sensor in the sensing area is equal to or greater than a first threshold;
When the output of the fire sensor in the sensing area is greater than or equal to a second threshold and less than the first threshold, classifying the sensing area into the caution zone;
2. The rescue operation support system according to claim 1, wherein the sensing area is classified as the easy-to-passage area when the output of the fire sensor in the sensing area is less than a second threshold. The rescue route determination means further
When a plurality of candidates for the rescue route having the same number of traffic caution zones on the route are obtained, the candidate with the shortest route length is determined as the rescue route to be indicated on the map. 3. The rescue operation support system according to claim 1 or 2. The storage unit stores in advance a predetermined calculation formula for evaluating the degree of danger for each sensing area using the output of the fire sensor,
The calculation formula is such that the higher the smoke concentration and/or temperature output by the fire detector in the sensing area through which the vehicle passes and the shorter the distance from the fire detector that detected the outbreak of fire, the greater the evaluation value. is set and
When a plurality of candidates for the rescue route are obtained, the rescue route determination means
Claims 1 to 3, characterized in that an evaluation value is obtained using the formula, and a candidate having the smallest average value or maximum value of the evaluation values among the plurality of rescue route candidates is determined as the rescue route. Rescue activity support system according to any one of. The terminal position detection device is
a plurality of transmitters installed inside the building and transmitting at least their own identification codes;
storage means for storing installation position information of the plurality of transmitters in association with the identification code;
Position identification for identifying the position of the rescuer terminal based on the installation position 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. means and
5. The rescue operation support system according to any one of claims 1 to 4, characterized in that it comprises:

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