Route search program, route search device, and route search method

Abstract

To provide a route search program capable of searching a route in consideration of a psychological burden and a physiological burden of a user.SOLUTION: The route search program acquires a route search condition including a departure place of a route and a destination of the route, acquires geographical information of an area including the departure place and the destination, searches for a route candidate based on the route search condition and the geographical information, calculates physio-psychological information indicating a physiological load and a psychological load in the route candidate, and outputs the route candidate and the physio-psychological information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a route search program, a route search device, and a route search method. [Background technology]

[0002] 2. Description of the Related Art Conventionally, route search programs that search for a route from a departure point to a destination are known.

[0003] Patent Document 1 describes a program that can efficiently search for route points so as to minimize link costs.

[0004] Patent Document 2 describes a route search method for accurately grasping predicted information on the thermal and wind environment at a predetermined date and time in real time and searching for a route. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-145880 [Patent Document 2] Japanese Patent Application Publication No. 2023-94840 Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional techniques have not been able to search for a route while taking into consideration the psychological and physiological burden on the user.

[0007] The present invention has been made in consideration of the above, and aims to provide a route search program, a route search device, and a route search method that can search for a route while taking into account the psychological and physiological burden on the user. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems and achieve the object, a route search program according to one aspect of the present invention is characterized in that it acquires route search conditions including a starting point of a route and a destination of the route, acquires geographic information of an area including the starting point and the destination, searches for route candidates based on the route search conditions and the geographic information, calculates physiological and psychological information representing physiological stress and psychological stress on the route candidates, and outputs the route candidates and the physiological and psychological information.

[0009] In addition, a route search program according to one aspect of the present invention is characterized in that the physiological and psychological information is information regarding the human body heat load, body temperature, amount of water loss, amount of sweat, heart rate, thermal sensation, comfort, or risk of heatstroke in the route candidate.

[0010] A route search program according to an aspect of the present invention is characterized in that it acquires body information of a user and calculates the physiological and psychological information using the body information.

[0011] In addition, a route search program according to one aspect of the present invention is characterized in that it acquires thermal environment information including current air temperature, radiation temperature, solar radiation, humidity, or airflow speed, and calculates the physiological and psychological information using the thermal environment information.

[0012] In addition, a route search program according to one aspect of the present invention is characterized in that the route search conditions include a scheduled departure time for departing from the departure point or a scheduled arrival time for arriving at the destination, and thermal environment information including the air temperature, radiant temperature, solar radiation, humidity, or air velocity at the scheduled departure time or the scheduled arrival time is acquired, and the physiological and psychological information is calculated using the thermal environment information.

[0013] In addition, a route search device according to one aspect of the present invention is characterized in that it acquires route search conditions including a starting point of a route and a destination of the route, acquires geographic information of an area including the starting point and the destination, searches for route candidates based on the route search conditions and the geographic information, calculates physiological and psychological information representing physiological stress and psychological stress on the route candidates, and outputs the route candidates and the physiological and psychological information.

[0014] In addition, a route search method according to one aspect of the present invention is characterized in that it acquires route search conditions including a starting point of a route and a destination of the route, acquires geographic information of an area including the starting point and the destination, searches for route candidates based on the route search conditions and the geographic information, calculates physiological and psychological information representing physiological stress and psychological stress on the route candidates, and outputs the route candidates and the physiological and psychological information. [Effects of the Invention]

[0015] According to the present invention, it is possible to realize a route search program, a route search device, and a route search method that can search for a route while taking into consideration the psychological and physiological burdens of a user. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of a route search system that executes a route search program according to the present invention. [Figure 2] FIG. 2 is a sequence diagram showing the processing of the route search program. [Figure 3] FIG. 3 is a diagram showing an example of route search conditions. [Figure 4] FIG. 4 is a diagram showing thermal environment information. [Figure 5] FIG. 5 is a diagram showing a specific example of searching for route candidates. [Figure 6] FIG. 6 is a diagram showing the thermal environment information and human body thermal load information of FIG. [Figure 7] FIG. 7 is a diagram showing an example of calculation of human body heat load. [Figure 8] FIG. 8 is a diagram showing an example of route candidates displayed on the display device. [Figure 9] FIG. 9 is a diagram showing an example of physiological and psychological information displayed on the display device. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of a route search program, a route search device, and a route search method according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to these embodiments. The present invention can be generally applied to route search programs, route search devices, and route search methods.

[0018] In addition, in the drawings, the same or corresponding elements are appropriately designated by the same reference numerals. It should be noted that the drawings are schematic, and the dimensional relationships and ratios of each element may differ from the actual situation. The dimensional relationships and ratios may also differ between the drawings.

[0019] (Embodiment) [Configuration of the route search system] Fig. 1 is a schematic diagram of a route search system that executes a route search program according to the present invention. As shown in Fig. 1, the route search system 100 includes a server device 1 as a route search device and a terminal device 2. The server device 1 and the terminal device 2 can communicate with each other via a network N. The route search system 100 is not limited to a configuration in which the components are physically separated into the server device 1 and the terminal device 2, but may also be configured as a physically integrated system. The network N is formed of one or a combination of the Internet, a LAN, a wireless LAN, a WAN, a dedicated line, a mobile phone network, a PHS network, etc.

[0020] The route search system 100 is a route search system that searches for a route for a user holding a terminal device 2 to travel from a departure point to a destination, and is realized by executing a route search program.

[0021] [Configuration of the server device] The server device 1 is an information processing device such as a personal computer, a workstation, etc. The server device 1 includes a communication unit 11, a control unit 12, and a storage unit 13.

[0022] The communication unit 11 is a communication interface that establishes a communication connection with the terminal device 2 via the network N.

[0023] The control unit 12 is a control unit that controls the entire server device 1, and includes a geographic information acquisition unit 121, a route search condition acquisition unit 122, a route search unit 123, a human body information acquisition unit 124, an environmental information acquisition unit 125, a physiological and psychological information calculation unit 126, a search result information generation unit 127, and a search result information transmission unit 128. The control unit 12 stores programs corresponding to these functional units in a storage device such as a nonvolatile memory or a magnetic disk device, and loads these programs into memory and executes them in a CPU (Central Processing Unit) to execute the corresponding processes.

[0024] The geographic information acquisition unit 121 acquires geographic information from the geographic information data 134 .

[0025] The route search condition acquisition unit 122 acquires route search conditions from the terminal device 2 via the communication unit 11 and the network N.

[0026] The route search unit 123 searches for route candidates based on the geographic information acquired by the geographic information acquisition unit 121 and the route search conditions acquired by the route search condition acquisition unit 122. Specifically, the route search unit 123 sets the departure point and the destination in the geographic information based on the route information search conditions. Then, the route search unit 123 searches for multiple route candidates that meet conditions such as "shortest route length," "shortest required time," and "fewest number of turns" from the routes from the departure point to the destination. The route search unit 123 may also search for route candidates that meet conditions such as "smallest human body heat load."

[0027] The human body information acquisition unit 124 acquires human body information from the terminal device 2 via the communication unit 11 and the network N.

[0028] The environmental information acquisition unit 125 acquires environmental information from the environmental information data 131 .

[0029] The physiological and psychological information calculation unit 126 calculates physiological and psychological information. The physiological and psychological information is information that represents physiological stress and psychological stress on a route candidate. The physiological and psychological information calculation unit 126 may calculate the physiological and psychological information using human body information. The physiological and psychological information calculation unit 126 may also calculate the physiological and psychological information using thermal environment information.

[0030] The search result information generating unit 127 generates search result information, which includes, for example, route candidates and physiological and psychological information.

[0031] The search result information transmitting unit 128 transmits the search result information to the terminal device 2 via the communication unit 11 and the network N.

[0032] The storage unit 13 is a storage device that stores various types of information used by the control unit 12. The storage unit 13 includes environmental information data 131, POI data 132, network data 133, and geographic information data 134. However, these data may be acquired by the server device 1 from another server device or the like via the network N.

[0033] The environmental information data 131 stores environmental information. The environmental information includes thermal environment information and human body thermal load information. The thermal environment information is information related to the temperature, radiant temperature, solar radiation, humidity, airflow speed, etc., linked to a node / link. The thermal environment information may be an observation value from the nearest weather station, an actual measurement value using a measuring instrument, an estimated value using a simulation, etc. The thermal environment information includes, for example, the current temperature or humidity, but may also include the temperature or humidity at the scheduled departure time from the departure point or the scheduled arrival time at the destination. The human body thermal load information can be calculated from the thermal environment information. A method for calculating the human body thermal load information will be described later.

[0034] POI (Point Of Interest) information is stored in the POI data 132. POI information is information about convenient places, places of interest to users, etc. Specifically, POI information includes, for example, location information of specific points, facilities, areas, etc., and related information (such as names, addresses, telephone numbers, business hours, URLs, word-of-mouth information, photos, and congestion status).

[0035] Network information is stored in the network data 133. The network information includes information about nodes that represent the nodes of a road network, such as intersections and branching points, and about links that connect the nodes. The network information includes, for example, information about nodes, such as node numbers and node location information (latitude and longitude), information about links, such as link lengths, required time, road types, and road route numbers, and information about administrative districts, intersection names, traffic regulations, and other traffic-related information.

[0036] Geographic information is stored in the geographic information data 134. The geographic information includes map information including the starting point and destination, and information such as the positions, shapes, and attributes of buildings and facilities included on the map.

[0037] [Configuration of terminal device] The terminal device 2 is a terminal into which a user inputs information necessary for a route search and which outputs route search results to the user. The terminal device 2 is an information processing device such as a personal computer, a smartphone, a wearable device, or a tablet computer. The terminal device 2 includes an input unit 21, an output unit 22, a communication unit 23, a control unit 24, and a storage unit 25.

[0038] The input unit 21 is configured by an operation input device such as a touch panel, a keyboard, or a mouse, and outputs operation input information of a user carrying the terminal device 2 to the control unit 24.

[0039] The output unit 22 is configured by an output device such as a liquid crystal display device, and outputs various information to the user operating the terminal device 2 in accordance with a control signal from the control unit 24.

[0040] The communication unit 23 is a communication interface that establishes a communication connection with the server device 1 via the network N.

[0041] The control unit 24 is a control unit that controls the entire terminal device 2, and includes a route search condition setting unit 241, a route search condition transmission unit 242, a location information acquisition unit 243, a human body information setting unit 244, a human body information transmission unit 245, a search result information acquisition unit 246, and a search result information output unit 247. The control unit 24 stores programs corresponding to these functional units in a storage device such as a nonvolatile memory or a magnetic disk device, and loads these programs into memory and executes them on the CPU to execute the corresponding processes.

[0042] The route search condition setting unit 241 sets route search conditions based on input by the user to the input unit 21. The route search conditions are, for example, a departure point, a destination, intermediate points, route narrowing conditions, etc. The departure point may be the current location of the user acquired by the location information acquisition unit 243, or may be a point arbitrarily set by the user through input to the input unit 21.

[0043] The route search condition transmission unit 242 transmits the route search conditions set by the route search condition setting unit 241 to the server device 1 via the communication unit 23 and the network N.

[0044] The location information acquisition unit 243 receives a GPS signal transmitted from a GPS (Global Positioning System) satellite and analyzes the received GPS signal to acquire location information (latitude and longitude) of the terminal device 2. The location information acquisition unit 243 may acquire location information by IMES (Indoor Messaging System).

[0045] The human body information setting unit 244 sets human body information based on the user's input to the input unit 21. The human body information is information about the user's body, including the user's height, weight, age, etc. The human body information may include the user's skin temperature, core body temperature, heart rate, activity level, etc., measured by a wearable device or the like. The human body information may also include clothing preferences (whether the user prefers thick or thin clothing) and walking speed.

[0046] The human body information transmitting unit 245 transmits the human body information set by the human body information setting unit 244 to the server device 1 via the communication unit 23 and the network N.

[0047] The search result information acquisition unit 246 acquires the search result information transmitted by the terminal device 2 via the communication unit 23 and the network N.

[0048] The search result information output unit 247 outputs the search result information acquired by the search result information acquisition unit 246 to the output unit 22 .

[0049] The storage unit 25 is a storage device that stores various types of information used by the control unit 24.

[0050] [Route search program] 2 is a sequence diagram showing the processing of the route search program. As shown in Fig. 2, first, the route search condition setting unit 241 of the terminal device 2 sets route search conditions including a departure point and a destination based on an input by the user to the input unit 21 (step S1).

[0051] FIG. 3 is a diagram showing an example of route search conditions. First, the location information acquisition unit 243 acquires the user's current location information, and a map including the user's current location is displayed on the output unit 22, which is a display. The user sets a starting point (START) and a destination (GOAL) on this map using the input unit 21, which is a touch panel. The starting point may be the user's current location acquired by the location information acquisition unit 243. However, the method of inputting the starting point and destination is not particularly limited. For example, the user may input the address, building name, or facility name of the starting point or destination by character input. Below, an example will be described in which the user searches for a route from the starting point to the destination and heads to the destination immediately after the search.

[0052] Next, the route search condition transmitting unit 242 of the terminal device 2 transmits the route search conditions to the server device 1 via the communication unit 23 and the network N (step S2).

[0053] Then, the route search condition acquisition unit 122 of the server device 1 acquires the route search conditions from the terminal device 2 via the communication unit 11 and the network N (step S3).

[0054] Thereafter, the geographic information acquisition unit 121 of the server device 1 acquires geographic information from the geographic information data 134 (step S4). Specifically, as shown in FIG. 3, the geographic information acquisition unit 121 acquires map information of an area including a circle C that includes the destination and the departure point. Furthermore, network information within the circle C may be acquired from the network data 133. A partial enlarged view of the dashed line portion is shown at the bottom of FIG. 3. The network information includes information regarding nodes N1 to N3 corresponding to intersections and links L1 and L2 connecting the nodes N1 to N3. In practice, all intersections within the circle C are treated as nodes, and all routes between the nodes are treated as links, but for simplicity's sake, this will not be described here.

[0055] Next, the route search unit 123 of the server device 1 searches for route candidates based on the route search conditions and the geographic information (step S5). The route search unit 123 searches for, for example, multiple routes that can connect the departure point and destination shown in Fig. 3, and searches for several (e.g., three) route candidates from these routes in descending order of route length, which is the sum of link lengths.

[0056] Furthermore, the human body information setting unit 244 of the terminal device 2 sets the human body information based on the user's input to the input unit 21 (step S6).

[0057] Subsequently, the human body information transmitting unit 245 of the terminal device 2 transmits the human body information to the server device 1 via the communication unit 23 and the network N (step S7).

[0058] Then, the human body information acquisition unit 124 of the server device 1 acquires the human body information from the terminal device 2 via the communication unit 11 and the network N (step S8). Note that the server device 1 may use a predetermined initial value as the human body information instead of acquiring the human body information from the terminal device 2. In this case, the terminal device 2 may not have a human body information setting unit and a human body information transmission unit.

[0059] The environmental information acquisition unit 125 of the server device 1 acquires environmental information from the environmental information data 131 (step S9). FIG. 4 is a diagram illustrating thermal environmental information. FIG. 4 lists temperature and other information for each environmental condition (outdoors in the sun, outdoors in the shade, and the corresponding symbols (triangle, star, and square) in FIG. 3). For information on temperature and other information for outdoors in the sun and outdoors in the shade, for example, the most recent observation value from the nearest weather station can be used. For information on temperature and other information for the triangle symbol in FIG. 3, the most recent measured value at position P1 can be used as a representative, since the location is on an underground route and it can be assumed that the temperature and other information are similar. For information on temperature and other information for the star and square symbols in FIG. 3, the most recent measured values ​​at positions P2 and P3 can be used. However, if some time has passed since the most recent observation by the weather station or the most recent measurement at each position, the current temperature or humidity may be estimated from the most recent observation value from the weather station or the most recent measured value at each position.

[0060] Then, the physiological and psychological information calculation unit 126 of the server device 1 calculates physiological and psychological information for each route candidate using the human body information and the environmental information (step S10). The physiological and psychological information calculation unit 126 calculates, as the physiological and psychological information, for example, the human body heat load L [J / m 2 ] is calculated.

[0061] First, we will explain an example of calculating the human body heat load L between certain nodes. SH [W / m 2 ], latent heat loss amount Q LH [W / m 2 ] are calculated using the following formulas (1) and (2), respectively. However, the unit [ / m 2 ] is expressed per body surface area of ​​the human body. Also, the sensible heat loss Q SH and latent heat loss Q LH The direction in which the human body loses heat (heat is released from the human body to the environment) is negative (minus), and the direction in which the human body loses heat is positive (plus).

number

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[0062] Here, the skin temperature t sk , clothing thermal resistance R t , skin water vapor pressure p sk , clothing evaporative heat resistance R etcan be considered as a constant depending on the assumed human body conditions. For example, when a user is wearing ordinary summer clothes, the clothing thermal resistance R t =0.194[(m 2 ·K) / W], clothing evaporative heat resistance R et =0.035[(m 2 ·kPa) / W]. In addition, when walking outdoors in summer, the skin temperature t sk = 35.0°C. In addition, the water vapor pressure on the skin surface can be assumed to be saturated (relative humidity 100%), assuming that the skin is wet with sweat. In this way, to roughly estimate the human body heat load of a route candidate, the skin temperature t sk and the water vapor pressure on the skin surface p sk This can be assumed depending on the situation.

[0063] As a result, the operative temperature in Figure 4 is calculated as the operative temperature of the environment t o , the water vapor pressure is the water vapor pressure of the environment p a By using these values, the amount of sensible heat loss of the human body Q SH , and the amount of latent heat loss Q LH can be calculated respectively.

[0064] Furthermore, the human body heat load L [J / m 2 ] is calculated by the following formula (3).

number

[0065] Next, an example will be described in which route candidates from a departure point to a destination are searched for and a route candidate that minimizes the human body heat load L is selected. In the example of FIG. 3, all nodes and links within circle C must be considered, but here, a simpler route will be described. FIG. 5 is a diagram showing a specific example of searching for route candidates. As shown in FIG. 5, an example will be described in which a route is reached from start S to goal G via nodes A to E.

[0066] Fig. 6 is a diagram showing the thermal environment information and human body heat load information of Fig. 5. The hatching of each node in Fig. 5 and the hatching shown on the left of Fig. 6 represent the corresponding environmental conditions. As an example, the start S, node A, and goal G of the diagonal hatching in Fig. 5 correspond to the outdoor solar radiation environmental conditions shown in Fig. 6.

[0067] Next, as a specific example, a method for calculating the human body heat load L between the start S and node B will be described. As in the example between certain nodes described above, the skin temperature t sk , clothing thermal resistance R t , skin water vapor pressure p sk , clothing evaporative heat resistance R et The environmental conditions at the start point S are outdoor sunlight exposure, and the environmental conditions at the node B are air-conditioned rooms. Applying the sensible heat loss Q at the start point S and node B to equations (1) and (2) based on these environmental conditions, the sensible heat loss Q SH , and the amount of latent heat loss Q LH can be calculated respectively.

[0068] For simplicity, we will assume that of the 8 minutes required to travel from Start S to Node B, 4 minutes is outdoors in sunlight and 4 minutes is in air-conditioned room 1. However, if the time it takes to pass through each environmental condition is known, calculations can be weighted accordingly. By applying this condition to equation (3), the human body heat load L between Start S and Node B can be calculated.

[0069] Figure 7 shows an example of calculating human body heat load. Figure 7 shows a list of human body heat loads L between each node calculated using the environmental conditions of each node. Then, by selecting the route candidate from the start S to the goal G with the smallest total human body heat load L, it is possible to select the route that places the least physiological and psychological strain on the human body.

[0070] Returning to FIG. 2, after calculating the physiological and psychological information in step S10, the search result information generating unit 127 of the server device 1 generates search result information using the physiological and psychological information (step S11).

[0071] Furthermore, the search result information transmitting unit 128 of the server device 1 transmits the search result information to the terminal device 2 via the communication unit 11 and the network N (step S12).

[0072] Then, the search result information acquisition unit 246 of the terminal device 2 acquires the search result information from the server device 1 via the communication unit 23 and the network N (step S13).

[0073] Then, the search result information output unit 247 of the server device 1 outputs the search result information acquired by the search result information acquisition unit 246 to the output unit 22 (step S14).

[0074] Fig. 8 is a diagram showing an example of route candidates displayed on a display device. As shown in Fig. 8, the search result information output unit 247 displays, as search result information, for example, the route candidates superimposed on a map on the output unit 22, which is a display. In other words, the search result information generated by the search result information generation unit 127 of the server device 1 includes image data illustrating the route candidates shown in Fig. 8 on a map.

[0075] FIG. 9 is a diagram illustrating an example of physiological and psychological information displayed on a display device. As shown on the left side of FIG. 9, the search result information output unit 247 displays, as search result information, the required time and route length of each route candidate, as well as, for example, the thermal sensation and comfort sensation, body temperature rise, water loss, and heatstroke risk of routes (route candidates) A ​​to C on the output unit 22 (display). Furthermore, the search result information output unit 247 may display, as physiological and psychological information, information on the body temperature, water loss, sweat rate, heart rate, thermal sensation, comfort sensation, or heatstroke risk expected when the route candidate is selected on the output unit 22 (display). These pieces of information may be estimated values ​​that can be estimated by inputting environmental information and human body information for each route candidate into existing technologies such as a human body thermoregulation model or a psychological quantity prediction model. Furthermore, the physiological and psychological information may include a determination result, index, degree, etc., determined from the estimated values. Furthermore, the environmental information and human body information may use preset initial values ​​or values ​​assumed according to the assumed conditions. Furthermore, the search result information output unit 247 may display the predicted body temperature fluctuation and the predicted amount of water loss in a manner that allows them to be compared with each other using graphs, etc. In other words, the search result information generated by the search result information generation unit 127 of the server device 1 includes physiological and psychological information such as body temperature, amount of water loss, amount of sweat, heart rate, thermal sensation, comfort, or risk of heat stroke.

[0076] The risk of heatstroke can be determined using existing technology. For example, a high risk of heatstroke can be determined when the core body temperature is 38.0°C or higher, the amount of water loss is 3% or more of body weight, the heart rate fluctuation per minute is 33 beats / min or higher, or the heart rate is 180 or higher.

[0077] As described above, according to the embodiment, physiological and psychological information such as human body thermal load is output to the output unit 22, so that a route can be searched for taking into consideration the psychological and physiological burdens on the user.

[0078] In the above example, the user searches for a route from a departure point to a destination and immediately heads to the destination after searching. However, this is not limiting. The user may input a scheduled departure time for departing from the departure point or a scheduled arrival time for arriving at the destination, and a route search for the entered time may be performed. In this case, the route search condition acquisition unit 122 of the server device 1 acquires route search conditions including the scheduled departure time or the scheduled arrival time. Furthermore, the environmental information acquisition unit 125 of the server device 1 acquires thermal environment information including the temperature or humidity at the scheduled departure time or the scheduled arrival time from the environmental information data 131. The temperature or humidity at the scheduled departure time or the scheduled arrival time may be acquired from, for example, a weather forecast from a meteorological observatory. Then, the physiological and psychological information calculation unit 126 of the server device 1 calculates physiological and psychological information such as human body heat load, body temperature fluctuation, water loss, or heatstroke risk for each route candidate when departing from the departure point at the scheduled departure time or when departing from the departure point so as to arrive at the destination at the scheduled arrival time.

[0079] In the above example, the route search unit 123 searches for a plurality of route candidates in step S5, and the physiological and psychological information calculation unit 126 calculates physiological and psychological information of each route candidate in step S10, but the present invention is not limited to this. After the physiological and psychological information calculation unit 126 calculates the physiological and psychological information of each route candidate in step S10, the route search unit 123 may further narrow down the route candidates, and the search result information generation unit 127 may generate search result information of the narrowed down route candidates.

[0080] Note that the configurations illustrated in the above embodiments are merely functional schematics and are not necessarily physically configured as shown. In other words, the distribution and integration of each device and component is not limited to that illustrated, and all or part of them can be functionally or physically distributed and integrated in any unit depending on various usage situations, etc. [Explanation of symbols]

[0081] 1. Server device 2. Terminal Device 11, 23 Communications Department 12, 24 Control section 13, 25 Storage section 21 Input section 22 Output section 100 Route Search System 121 Geographic Information Acquisition Department 122 Route search condition acquisition unit 123 Route Search Unit 124 Human Body Information Acquisition Department 125 Environmental Information Acquisition Department 126 Physiological and Psychological Information Calculation Department 127 Search result information generation unit 128 Search result information transmission unit 131 Environmental Information Data 132 POI data 133 Network Data 134 Geographical Information Data 241 Route search condition setting section 242 Route search condition sending unit 243 Location information acquisition unit 244 Human body information setting unit 245 Human body information transmission unit 246 Search result information acquisition unit 247 Search result information output section

Claims

1. obtain route search conditions including a starting point of a route and a destination point of the route; acquiring geographical information of an area including the departure point and the destination; Searching for route candidates based on the route search conditions and the geographic information; calculating physiological and psychological information representing physiological and psychological stresses on the route candidate; A route search program that outputs the route candidates and the physiological and psychological information.

2. The route search program according to claim 1, characterized in that the physiological and psychological information is information regarding human body heat load, body temperature, amount of water loss, amount of sweat, heart rate, thermal sensation, comfort, or risk of heat stroke on the route candidate.

3. Acquire the user's body information; 2. The route search program according to claim 1, wherein the physiological and psychological information is calculated using the human body information.

4. Acquire thermal environment information including the current air temperature, radiant temperature, solar radiation, humidity, or air velocity, 2. The route search program according to claim 1, wherein the physiological and psychological information is calculated using the thermal environment information.

5. the route search conditions include a scheduled departure time from the departure point or a scheduled arrival time at the destination, acquire thermal environment information including the air temperature, radiant temperature, solar radiation, humidity, or air velocity at the scheduled departure time or the scheduled arrival time; 2. The route search program according to claim 1, wherein the physiological and psychological information is calculated using the thermal environment information.

6. obtain route search conditions including a starting point of a route and a destination point of the route; acquiring geographical information of an area including the departure point and the destination; Searching for route candidates based on the route search conditions and the geographic information; calculating physiological and psychological information representing physiological and psychological stresses on the route candidate; A route search device that outputs the route candidates and the physiological and psychological information.

7. obtain route search conditions including a starting point of a route and a destination point of the route; acquiring geographical information of an area including the departure point and the destination; Searching for route candidates based on the route search conditions and the geographic information; calculating physiological and psychological information representing physiological and psychological stresses on the route candidate; A route search method, comprising: outputting the route candidates and the physiological and psychological information.

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