JP2007333423A - Route guiding system for guiding safe route - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a route guiding system for avoiding insecure areas and accidental points, and guiding a route from the point of view of ensuring a safe movement to a destination. <P>SOLUTION: A route information server 200 generates route information from a current location to the predetermined destination in response to a request from a wireless communication terminal 100 with a positioning function. The route information server 200 is provided with: a risk information storing section for storing risk information with the degree of risk at arbitrary points in map information based on an occurrence situation of incidents/accidents; and a route generating section for referring to the risk information corresponding to the current location of the wireless communication terminal, generating the route information so as to reduce the degree of risk in each unit zone to a predetermined level or less, and transmitting the route information to the wireless communication terminal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a route information system that guides routes, and more particularly, to a route information system that guides safe routes that allow users to avoid danger.

  Route information systems (navigation systems) for in-vehicle devices and mobile devices are widely used, and provide optimal routes by specifying conditions such as mileage priority, estimated time priority, trunk road priority, and highway not used It can be done.

  Japanese Patent Laid-Open No. 2005-17027 discloses an evacuation guidance system that guides an evacuation route on map information when a disaster occurs. The evacuation guidance system described in the publication not only guides the user from the current location to the evacuation site, but also generates a route with a low risk by referring to a table in which risk factors corresponding to the disaster occurrence area are set. It is supposed to be possible.

JP 2005-17027 A

  In unguided lands, a map and route information system (navigation system) can be relied on, but because we followed the shortest route and guide route on the map, we approached insecure areas and frequent traffic accidents. If you encounter an incident or accident, you may feel uncomfortable. Also, even in places where there is a sense of land, it may be dangerous if the waypoints and time zones change as usual.

  Paragraphs 0054-0059 of Patent Document 1 disclose a specific example of guiding a route having the smallest risk level obtained by multiplying the risk factor from the current location to the evacuation site and the distance factor. The danger information table used in this document is created based on hazard maps created by local governments, etc., and even if guidance to the evacuation site can be made, there are poor security areas and traffic in the area. There is a problem that the accident frequent occurrence point cannot be reflected.

  In addition, as in Patent Document 1, in the route selection method in which some danger is unquestioned in order to escape from a great danger, even if some detours are made, it is a safety orientation that wants to feel uncomfortable and dangerous. There is also a problem that it is unacceptable to users who are high.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a route information system capable of meeting the needs of the safety-conscious user and a device used therefor. is there.

  According to the first aspect of the present invention, map information is used to generate route information from a current position of a wireless communication terminal to a predetermined destination in response to a request from the wireless communication terminal having a positioning function. Danger information that is a route information server and stores danger information to which a degree of danger (risk level) is given at an arbitrary point in the map information based on an incident / accident occurrence situation in the area corresponding to the map information A route generation unit that refers to danger information corresponding to an area where the wireless communication terminal is located, generates route information so that the degree of danger per unit section is a predetermined level or less, and transmits the route information to the wireless communication terminal And a route information system that provides route guidance to wireless communication terminals using this server.

  According to a second aspect of the present invention, a wireless communication terminal having a positioning function and capable of requesting route information from the above-described route information server, wherein the current position obtained by positioning is received from the route information server. A wireless communication terminal characterized by having a risk notification section for reporting to a preset report destination when there is a deviation from the route, a route information server for performing route guidance for the wireless communication terminal, and route information A system is provided.

  According to the present invention, it is possible to provide an optimal (safe) route that does not include a section in which the degree of danger exceeds a certain level, and it is possible to reduce the risk of the user being involved in an incident or accident. .

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a route information system according to the first embodiment of the present invention. Referring to FIG. 1, the route information system according to the first exemplary embodiment of the present invention mainly includes a wireless communication terminal (user terminal) 100, a route information server 200, and an emergency notification destination device 300. ing.

  The wireless communication terminal (user terminal) 100, the route information server 200, and the emergency notification destination device 300 operate by program control and are connected to each other via a communication network 400 such as the Internet.

  The wireless communication terminal (user terminal) 100 is a portable type such as a mobile phone or a PDA (Personal Digital Assistant) that has a function of acquiring position information of its own terminal from a GPS satellite and a function of transmitting and receiving information to and from the wireless communication network 400. Information processing apparatus.

  The route information server 200 is an information processing apparatus such as a workstation server installed by a service provider that provides route information.

  The emergency notification destination device 300 is an information processing device such as a personal computer installed in a security company, police, school, or home of a user of the wireless communication terminal (user terminal) 100, and is a wireless communication terminal (user terminal). It is used to receive an emergency call from 100 and search for a user or dispatch a security guard to the terminal position.

  FIG. 2 is a block diagram illustrating a configuration of a mobile phone that can be used as the wireless communication terminal (user terminal) 100. Referring to FIG. 2, a wireless communication terminal (user terminal) 100 includes a positioning unit (GPS unit) 101, a wireless unit 102, a display unit 103, a numeric keypad for inputting various information, a scroll / decision key, and the like. Operating unit 104, transmitting / receiving unit 107 for inputting / outputting to / from audio processing unit 105 for processing audio signals, speaker 108 for outputting musical sounds, notification sounds, etc., phone book information, transmission / reception mail information A memory 109 for storing incoming / outgoing call information, content information, and various settings of the mobile phone terminal, and a control unit 110 for controlling each part of the terminal such as a telephone function, a web connection function, a mail transmission / reception function, and a positioning function. .

  The positioning unit (GPS unit) 101 measures the time until the radio wave emitted from the GPS satellite reaches the terminal to determine the distance between the satellite and the terminal, and uses this distance to determine the terminal position coordinates It is. The radio unit 102 is means for transmitting and receiving radio signals to and from a radio communication base station (not shown) via an antenna.

  The display unit 103 is configured by a liquid crystal display or the like for displaying route information to the destination represented on the map using the map information.

  FIG. 3 is a block diagram showing the configuration of the route information server 200. Referring to FIG. 3, the route information server 200 stores a network communication unit (NW communication unit) 201, a user information (user information) database (hereinafter referred to as “DB”), a map information DB, and a danger information DB. Based on the current location information and destination information received from the wireless communication terminal 100 via the storage unit 202 and the network communication unit (NW communication unit) 201, and the risk stored by the method described later, And a control unit 203 that generates a route (route information) in consideration of the above and transmits the route to the wireless communication terminal 100.

  In the risk information DB, negative risk points (sections) in which large values are set as the risk level increases according to the type / number of crimes and accidents that occurred in each time zone within the area corresponding to the map information ) Decrease the negative risk point (section) point according to the type of point, police station, dispatch station, 24-hour supermarket, etc. where you can get immediate help, busy roads, highways with street lights, etc. A danger information table including positive danger point (section) points set with values is stored. The risk point (section) point is not uniformly determined depending on the type of facility, etc. For example, in a dispatch station, 24-hour supermarket, etc., it is changed depending on the facility size, the number of years of operation, the number of resident personnel, and the like.

  Further, a plurality of the risk information tables are prepared for the number of time zones so that different values are applied depending on the time when the route information is requested. Therefore, even if it is the same facility or road, depending on the time zone, whether the store is open during that time zone, the number of traffic and the effect of street lights will change, so for each danger information table, A risk point (section) point that takes these into account is set.

  Next, with respect to the operation of the route information system according to the present embodiment configured as described above, see the flowchart of FIG. 4 representing the operation on the wireless communication terminal 100 side and the flowchart of FIG. 5 representing the operation on the route information server 200 side. And will be described in detail.

  First, the wireless communication terminal 100 acquires (positions) position information necessary when requesting route information (step S101 in FIG. 4).

  Subsequently, the wireless communication terminal 100 accesses the route information server 200, transmits the user information (user ID, etc.), the location information of the own device acquired in step S101, and the destination input by the user, Creation / transmission is requested (step S102 in FIG. 4).

  When the route information server 200 receives the user information (user ID, etc.), the location information of the wireless communication terminal 100 and the destination (step S201 in FIG. 5), the user authentication is performed (step S202 in FIG. 5), and the storage unit Referring to the user information DB 202, it is confirmed whether or not the wireless communication terminal 100 that has accessed is that of a registered user of the route information providing service.

  When it is confirmed that the wireless communication terminal 100 that has accessed is of a registered user of the route information providing service, the route information server 200 searches for a route from the current position of the wireless communication terminal 100 to the destination ( Step S203 in FIG.

  If a plurality of routes can be retrieved in step S203 (YES in step S204 in FIG. 5), the route information server 200 follows the routes retrieved in step S203 and stores the danger information stored in the storage unit 202. With reference to the DB, risk point (section) points are added and subtracted (step S205 in FIG. 5; route risk level calculation).

  Based on the above, when a crime occurs on a nearby road, the risk point (section) point is increased according to the content / number of cases, for example, a route passing through a place where there is a lot of snatching, an injury incident site, etc. is selected. It becomes difficult. On the other hand, at police stations, dispatch stations, 24-hour supermarkets, busy roads, and main roads with street lamps, dangerous point (section) points are subtracted and are easily selected. This is based on the knowledge that even if there are many incidents / accidents, it is possible to seek help if there are many police stations, dispatch offices, 24-hour supermarkets and traffic.

  The route information server 200 confirms the total value of the risk point (section) points for each unit section, and the risk point (section) point per unit section does not exceed a predetermined threshold, and the risk point (section) of the entire route. ) A predetermined number of routes including the optimal route with the fewest points are selected (step S206 in FIG. 5) and transmitted to the wireless communication terminal 100 (step S207 in FIG. 5).

  In addition, the route information server 200 refers to the danger information DB, and generates and transmits route information to which an icon or the like is added so that the contents of the dangerous point / section and the facility type can be visually identified. As a result, the user can recognize the reason why the route information server 200 has selected the route, and can follow the route information more safely.

  When receiving the route information from the route information server 200 (step S103 in FIG. 4), the wireless communication terminal 100 displays the received route on the display unit 103 and shifts to the guidance mode (step S104 in FIG. 4).

  The wireless communication terminal 100 that has shifted to the guidance mode periodically acquires the position information of the terminal (step S105) and compares it with the route information (steps S105 to S107). Then, when the route has been deviated or when the terminal has not moved for a preset period, an emergency contact is transmitted to the emergency notification destination device 300 (step S108).

  The transmitted emergency contact is received and output by the emergency notification destination device 300. As a result, it is possible to quickly take necessary measures such as express to the local area and contact with related organizations.

  The preferred embodiment for carrying out the present invention has been described above, but various modifications can be made without departing from the gist of the present invention that guides a safe route that satisfies a certain degree of danger (risk degree). Needless to say, it can be added. For example, in this embodiment, if a plurality of routes cannot be searched in step S203 (NO in step S204 in FIG. 5), route risk calculation and route information selection in step S205 and subsequent steps in FIG. 5 are not performed. As described above, even if it is the only route, the route risk may be calculated and transmitted to prompt the user to change the destination.

  Similarly, even when a plurality of routes can be searched in step S203, if there is a section where the dangerous point (section) point exceeds a predetermined threshold in all the routes, the user is notified of this, You may make it prompt the change of the destination.

  In the above-described embodiment, the risk level is calculated after searching for a plurality of route candidates. However, using the information stored in both the map information DB and the risk information DB, a multi-purpose GA (Genetic GA) is used. The route may be selected by performing optimization processing according to (Algorithm).

  Further, in the above-described embodiment, the risk information DB has been described as storing a different risk information table for each time zone so that route guidance suitable for the situation at the time of transmission of route information can be performed. The information table may be used after being corrected according to the route information request time.

  Further, in the above-described embodiment, it has been described that the wireless communication terminal 100 sends an emergency call to the emergency notification destination device 300 when it deviates from the route or when there is no movement from the same place for a preset period. However, even when a predetermined operation (for example, a single action operation such as pressing a predetermined key of the operation unit 104) is performed in the wireless communication terminal 100, an emergency call may be transmitted.

It is a figure showing schematic structure of the route information system concerning a 1st embodiment of the present invention. It is a block diagram showing the detailed structure of the radio | wireless communication terminal (user terminal) of the route information system which concerns on the 1st Embodiment of this invention. It is a block diagram showing the detailed structure of the route information server which concerns on the 1st Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the radio | wireless communication terminal (user terminal) of the route information system which concerns on the 1st Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the route information server which concerns on the 1st Embodiment of this invention.

Explanation of symbols

100 wireless communication terminal (user terminal)
101 Positioning unit (GPS unit)
DESCRIPTION OF SYMBOLS 102 Radio | wireless part 103 Display part 104 Operation part 105 Audio | voice processing part 106 Transmission part 107 Reception part 108 Speaker 109 Memory 110 Control part 200 Route information server 201 Network communication part (NW communication part)
202 Storage Unit 203 Control Unit 300 Emergency Notification Destination Device 400 Communication Network

Claims (5)

A route information server that uses map information to generate route information from a current position of the wireless communication terminal to a predetermined destination in response to a request from a wireless communication terminal having a positioning function,
A danger information storage unit for storing danger information to which a degree of danger (risk level) is given at an arbitrary point in the map information based on the occurrence state of the incident / accident in the area corresponding to the map information;
A route generator that refers to danger information corresponding to an area where the wireless communication terminal is located, generates route information so that the degree of danger per unit section is a predetermined level or less, and transmits the route information to the wireless communication terminal. Was it,
A route information server characterized by A plurality of the danger information is stored for each time zone based on the time when the incident / accident occurred,
The route generation unit generates the route information with reference to danger information corresponding to the time requested from the wireless communication terminal;
The route information server according to claim 1. A wireless communication terminal having a positioning function and capable of requesting route information from the route information server according to claim 1,
When the current position measured is deviated from the route received from the route information server, provided with a risk notification unit to notify a preset notification destination,
A wireless communication terminal characterized by the above.   A route information system comprising the route information server according to claim 1 and a wireless communication terminal having a positioning function and capable of requesting route information from the route information server.   A route information system in which the route information server according to claim 1 is connected to the wireless communication terminal according to claim 3.

Images