JP2012244240A - Peripheral information display system and peripheral information display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to obtain peripheral information of a communication terminal even if the communication terminal cannot communicate with a base station.SOLUTION: A peripheral information display system comprises: a communication terminal 10 which displays peripheral information to guide a user to a communication area of a base station; a base station 20 which obtains the position of the communication terminal 10 as position information communicating with the communication terminal 10, and transfers information about peripheral of the position of the communication terminal 10 as peripheral information to the communication terminal 10; and a peripheral information provision server 30 which receives position information from the base station 20, and based on the position information, generates and outputs peripheral information to the base station 20.

Description

  The present invention relates to a peripheral information display system and a peripheral information display method capable of displaying predetermined information around a communication terminal even when communication is not possible.

  A communication terminal carried by a user communicates with a base station or the like using radio waves. Therefore, communication cannot be performed in a situation where radio waves do not reach. Therefore, the user needs to move to a place where radio waves reach. However, the area where communication is possible cannot be known by human knowledge.

  Therefore, for example, in Patent Document 1, a communication terminal that communicates with a base station measures the current position using positioning radio waves from a GPS satellite, calculates the reception level of a radio signal from the base station, and A technique is disclosed in which a reception state of a radio signal at each communication point can be accurately grasped by storing a reception level. Thereby, the user can move to a communicable area by tracing the history of the received reception level.

JP 2007-151012 A

  However, since the communication terminal according to Japanese Patent Laid-Open No. 2007-151012 only stores the radio wave state along the user's moving route, when moving to a communicable area in a direction off the route. Memory information has a problem that is not useful. For example, when the user gets lost while moving toward a certain destination, the user tries to move with a navigation system (assumed that it can be used in a communication terminal). In this case, if the communication terminal cannot communicate with the base station or the like, the navigation system cannot be used. Of course, it is possible to move to a communicable area by returning from the history according to Japanese Patent Application Laid-Open No. 2007-151012. However, in this case, it takes a very long time to reach the destination. These problems cannot be avoided as long as the system determines a course direction while communicating with a base station.

  Therefore, a main object of the present invention is to provide a peripheral information display system and a peripheral information display method that can display predetermined information about the periphery where the communication terminal is located even when communication with the base station becomes impossible. is there.

  In order to solve the above-described problems, an invention relating to a peripheral information display system includes a communication terminal that displays peripheral information for guiding a user to an area communicable with a base station, and a communication terminal that communicates with the communication terminal. Acquires location information indicating the location, and also transmits a base station that transmits predetermined information around the communication terminal to the communication terminal as peripheral information, receives location information from the base station, and creates peripheral information based on the location information And a peripheral information providing server that outputs the information to the base station.

  The invention according to the peripheral information display method acquires a communication terminal side procedure for displaying peripheral information for guiding a user to an area communicable with a base station, position information indicating the position of the communication terminal, and the communication terminal A base station side procedure for transferring predetermined peripheral information to the communication terminal as peripheral information, and a peripheral information providing server that receives positional information from the base station, creates peripheral information based on the positional information, and outputs the peripheral information to the base station A side procedure.

  According to the present invention, when the communication with the base station is performed, the peripheral information related to the periphery of the communication terminal is received and stored, so that even when communication with the base station becomes impossible, the peripheral information of the communication terminal is obtained. Will be able to.

It is a schematic diagram which shows the outline | summary of the periphery information display system concerning the 1st Embodiment of this invention. It is a figure which shows the structure of the communication terminal and server concerning 1st Embodiment, (a) is a block diagram of a communication terminal, (b) is a block diagram of a server. It is a sequence which shows the periphery information provision procedure in the periphery information display system concerning 1st Embodiment. It is a flowchart which shows operation | movement of the communication terminal concerning 1st Embodiment. It is the figure which illustrated peripheral information concerning a 1st embodiment. It is the figure which illustrated peripheral information concerning a 2nd embodiment of the present invention.

<First Embodiment>
A first embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing an outline of the peripheral information display system 2 according to the present embodiment. In this specification, the term “peripheral information” is used, but this term is defined as information for guiding the user to an area where communication with the base station is possible.

  The peripheral information display system 2 includes at least one or more communication terminals 10, a base station 20, and a peripheral information providing server (hereinafter abbreviated as a server) 30 connected to the base station 20.

  The base station 20 performs wireless communication with the communication terminal 10 in the predetermined communication area R1, and communicates with the server 30 via a communication line.

  FIG. 2A is a block diagram of the communication terminal 10. The communication terminal 10 includes a communication unit 11 for wireless communication with the base station 20, a storage unit 13 for storing peripheral information and various setting conditions, a position acquisition unit 12 for acquiring the position of the own device via a GPS satellite, and the like. , A display unit 14 for displaying various types of information, and a control unit 15 for controlling them via a bus 16.

  FIG. 2B is a block diagram of the server 30. The server 30 includes a communication unit 31 that communicates with the base station 20, a storage unit 32 that stores various types of information such as geographical information used for calculation of peripheral information, a calculation unit 33 that calculates peripheral information, and a bus 35. The control part 34 which controls is provided.

  The peripheral information provision procedure in the peripheral information display system 2 will be described according to the sequence shown in FIG. In the following description, the intensity of radio waves will be described as an example of information content of peripheral information, but the present invention is not limited to such information. That is, the peripheral information can include information about a map around the communication terminal, the nearest station, a timetable of transportation, and the like. Further, the peripheral information may be information in which information indicating the radio field intensity is associated with a map. In this case, as will be described later, the communication terminal creates display data based on the peripheral information. Further, the peripheral information may be image data created by the server 30 based on information indicating the radio wave intensity and geographical information.

  Process 1 and Process 2: First, when the communication terminal 10 communicates with the base station 20, the communication terminal 10 transmits the position (position registration information) of the own device acquired using a GPS satellite or the like via the communication unit 11 to the base station. 20 is output. When the base station 20 acquires the location registration information, the base station 20 outputs this information to the server 30.

  Process S3: In the server 30, the calculation unit 33 calculates the peripheral information based on the position registration information received via the communication unit 31 and the geographical information stored in the storage unit 32 in advance.

  Processes S4 and S5: The peripheral information obtained by the calculation is sent to the base station 20 via the communication unit 31, and the base station 20 transfers it to the communication terminal 10.

  The geographical information is information obtained by dividing the radio wave state in the communication area R1 of the base station 20 into blocks. FIG. 5 is a diagram illustrating such radio wave information. However, FIG. 5 is an example of peripheral information as described later, and is not strictly geographical information. However, geographical information and peripheral information are both information indicating radio wave conditions, and geographical information indicates a radio wave condition centered on the position of the base station, whereas peripheral information is an area where communication with the base station is possible. This is information for guiding the user to information indicating a radio wave state centered on the position of the communication terminal. When geographical information and peripheral information are defined in this way, as a calculation method of peripheral information, position registration information is superimposed on geographical information, and a geographical range within a predetermined range (for example, 100 m) from the position indicated by the position registration information. A method of using information as peripheral information is possible. The present embodiment is not limited to such a calculation method.

  In FIG. 5, each block is divided into a white area E1, an oblique hatching area E2, a cross hatching area E3, and a dot hatching area E4. The white area E1 is an area where radio wave information is not registered, the oblique hatching area E2 is an area where radio waves are strong, the cross-hatching area E3 is an area where radio waves are weak, and the dot hatching area E4 is an area where radio waves do not reach. It shall be. Of course, it is also possible to display the radio wave state in a subdivided manner. Moreover, although the distance at the time of dividing into blocks can be illustrated, for example, 10 m, the present invention is not limited to this value.

  Process 6: Thereby, the communication terminal 10 stores the received peripheral information in the storage unit 13 or displays it on the display unit 14. Therefore, the user can know the radio wave condition around him.

  Next, the operation of the communication terminal 10 that has received the peripheral information will be described with reference to the flowchart shown in FIG.

  Step S11: The communication terminal 10 determines whether or not communication with the base station 20 is possible. Whether or not communication is possible is determined based on whether or not the radio wave intensity is equal to or higher than a preset intensity. If communication is possible, the process proceeds to step S12. If communication is not possible, the process proceeds to step S15.

  Step S <b> 12: When it is determined that communication is possible and the process proceeds to step S <b> 12, the communication terminal 10 communicates with another call partner via the base station 20. The base station 20 transmits the peripheral information of the communication terminal 10 when, for example, a line is established with the communication terminal 10.

  Step S13: The communication terminal 10 determines whether or not the received peripheral information is the latest among the peripheral information held by the communication terminal 10.

  Step S14: If the received peripheral information is the latest, the communication terminal 10 updates the peripheral information and returns to step S11. As a result, the latest peripheral information is stored in the communication terminal 10. This peripheral information is information calculated based on location registration information indicating the location of the communication terminal 10. Therefore, the communication terminal 10 can acquire peripheral radio wave information at the current position or a position close to the current position.

  Step S15: On the other hand, if it is determined in step S11 that communication with the base station 20 is not possible, the communication terminal 10 displays the peripheral information as shown in FIG. 5 on the display unit 14 based on the stored peripheral registration information. To do. Stars and hatching in the figure are as described above.

  The user of the communication terminal 10 can communicate with the base station 20 by moving to a communicable block while viewing the display unit 14. Therefore, since the latest peripheral information when the user is located in the communication area R1 is stored in the storage unit 13, it is possible to easily determine a communicable area even when the user moves out of the area. become.

In the above description, the intensity of radio waves has been described as an example of peripheral information, but the present invention is not limited to such information. For example, a user who goes to a station may enter a shadow of a building and cannot use a navigation system or the like. In such a case, the server 30 calculates information related to the station around the user as the peripheral information, and the communication terminal 10 stores this peripheral information, so that the navigation system can be used even if it cannot be used. You will be able to go to the nearest station based on the surrounding information.
<Second Embodiment>
Next, a second embodiment of the present invention will be described. In addition, about the same structure as 1st Embodiment, description is abbreviate | omitted suitably using the same code | symbol.

  In the first embodiment, the communication terminal 10 displays a diagram in which the radio wave intensity is divided into blocks based on the peripheral information so that the user can be notified of a place where the radio wave condition is good. Thereby, it can move to a place with a good radio wave condition.

  However, for example, in a building or underground, there is a case where it is not possible to know which direction to go to go to a place with a good radio wave condition because east, west, south, and north are not understood.

  In the peripheral information display system 2 according to the present embodiment, even in such a case, an electronic compass can be displayed so that the user can easily go to a place with a good radio wave condition.

  FIG. 6 is a diagram when the electronic compass 5 is displayed on the display unit 14 of the communication terminal 10 together with the peripheral information 6 in this way. The arrow in the figure indicates the electronic compass 5. Therefore, when the user cannot communicate with the base station 20, the user can go to a place with a good radio wave condition by moving according to the electronic compass.

  In FIG. 6, a map is also displayed. Thus, the user can know the direction indicated by the electronic compass 5 and the moving road at the same time, so that the user can easily move to a place where the radio wave condition is good. Although FIG. 6 shows an example in which the direction indicated by the electronic compass is displayed on the map data, the radio wave intensity distribution shown in FIG. 5 may be displayed superimposed on the map data.

  INDUSTRIAL APPLICABILITY According to the present invention, the present invention can be applied to applications such as searching for surrounding information when radio waves cannot be received by communication terminals using radio waves such as mobile phones.

  Further, even when radio waves can be received, it can be applied to searching for stronger peripheral information.

2 peripheral information display system 5 electronic compass 6 peripheral information 10 communication terminal 11 communication unit 12 position acquisition unit 13 storage unit 14 display unit 15 control unit 20 base station 30 server (peripheral information providing server)
31 Communication Unit 32 Storage Unit 33 Calculation Unit 34 Control Unit

Claims (8)

A peripheral information display system,
A communication terminal that displays peripheral information for guiding a user to an area that can communicate with a base station;
A base station that communicates with the communication terminal, acquires position information indicating the position of the communication terminal, and forwards predetermined information around the communication terminal to the communication terminal as the peripheral information;
And a peripheral information providing server that receives the positional information from the base station, creates the peripheral information based on the positional information, and outputs the peripheral information to the base station. The peripheral information display system according to claim 1,
The peripheral information includes information in which information on strength and weakness of radio waves used for communication with the base station is associated with geographical information including a communication area of the base station Information display system.
The peripheral information display system according to claim 2,
The peripheral information includes information on an electronic compass for guiding a user to an area communicable with the base station, and the communication terminal displays the communicable area using the information on the electronic compass. Peripheral information display system characterized by this. The peripheral information display system according to any one of claims 1 to 3,
When the communication terminal is located in an area where the terminal cannot communicate, the peripheral information display displays information for guiding the user to an area communicable with the base station based on the peripheral information. system. A peripheral information display method,
A communication terminal side procedure for displaying peripheral information for guiding a user to an area capable of communicating with a base station;
While acquiring the position information indicating the position of the communication terminal, the base station side procedure for transferring the predetermined information around the communication terminal to the communication terminal as the peripheral information,
A peripheral information providing server-side procedure that receives the position information from the base station, creates the peripheral information based on the position information, and outputs the peripheral information to the base station. The peripheral information display method according to claim 5,
The peripheral information includes information in which information on strength and weakness of radio waves used for communication with the base station is associated with geographical information including a communication area of the base station Information display method. The surrounding information display method according to claim 6,
The peripheral information includes information on an electronic compass for guiding a user to an area communicable with the base station. The communication communicable area is determined using the information on the electronic compass in the communication terminal side procedure. A peripheral information display method comprising a display procedure. The surrounding information display method according to any one of claims 5 to 7,
The communication terminal side procedure includes a procedure of displaying information for guiding a user to an area communicable with the base station based on the peripheral information when the communication terminal is located in an area where communication is not possible. Characteristic peripheral information display method.

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