JP4915780B2 - Positioning device - Google Patents

Description

  The present invention relates to a positioning device that determines whether or not access to storage means is possible based on positioning data obtained by receiving radio waves from a GPS satellite.

  Conventionally, as disclosed in Japanese Patent Laid-Open No. 2003-242041 (Patent Document 1), a terminal device that keeps confidential information based on positioning data obtained by receiving radio waves from a GPS satellite is known. As shown in FIG. 3, the terminal device includes a GPS receiving unit 91 that receives radio waves from a GPS satellite 94, a hard disk 92 in which various information including confidential information is recorded, and an operating unit 93 that performs various operation inputs. And.

  The terminal device knows its current position based on the positioning data obtained from the GPS receiver 91. The hard disk 92 stores an emergency measure program for preventing information leakage, and further records a permitted position range in which use of the terminal device is permitted by operation input from the operation unit 93. This permission position range is set assuming a range that the user of the terminal device can carry around, for example, within a radius of OOkm around the home or within XX ward.

Therefore, in this case, the terminal device collates the current position obtained from the positioning data with the permitted position range. If the current position is within the permitted position range, the terminal device is permitted to use the terminal device and is outside the permitted position range. If there is, the use of the terminal device is prohibited by executing the emergency measure program.
JP 2003-242041 A

  However, in the conventional terminal device, the user needs to specify and set specific position information (latitude, longitude, etc.) when setting the permitted position range. It was forced. Even if map software or the like is incorporated into the terminal device to simplify the specification of position information, a new problem arises in that the map software is required and the cost is increased.

  The present invention has been invented in view of the above-described background art, and an object thereof is to provide a positioning device that is inexpensive and can easily set a permitted position range.

In order to solve the above problems, the invention according to claim 1, wherein, a positioning means for positioning a current position by receiving radio waves from GPS satellites, a storage means for storing positioning data positioning in the positioning unit, and a connection means without to be accessed to the storage unit from an external device by connecting an external device, the positioning device capable of displaying the positioning data stored in the storage unit to the external device a comparison unit operable to judge whether or contain positioning data of the current position within the allowed range of positions previously set by being designated input the direction and distance relative to the positioning data recorded in the storage unit, further comprising and, from the comparison result of the comparing means, when the positioning current position is not within the allowed position range, especially that none to prohibit access from the external device It is set to.
The invention according to claim 2 of the present application is characterized in that the positioning device according to claim 1 is provided with authentication means for determining whether or not an operation input is possible in setting the permitted position range .

  In the positioning device according to claim 1 of the present application, the permitted position range is set using the positioning data stored in the storage means. Therefore, the user can easily set the permitted position range without preparing new position information. Can be set. Furthermore, in this setting method of the permitted position range, software for specifying position information such as map software is unnecessary, and therefore the permitted position range can be easily set without increasing the cost.

  Further, in the positioning device according to claim 2 of the present application, since an authentication means for determining whether or not an operation input is possible is provided in setting the permitted position range, only an authenticated user can set the permitted position range. This is a positioning device with higher security.

  FIG. 1 shows a positioning device A which is an embodiment of the present invention. This positioning device A is connected to a positioning means 1 that receives radio waves from a GPS satellite and measures the current position, a storage means 2 that stores positioning data measured by the positioning means 1, and an external device 4. The positioning device A includes a connection unit 3 that allows the storage unit 2 to be accessed from the external device 4, and can display the positioning data stored in the storage unit 2 on the external unit 4.

  Further, it further comprises a comparison means for comparing the preset permitted position range with the positioning data of the current position, and from the comparison result of the comparison means, if the measured current position is not within the permitted position range, Access from the external device 4 is prohibited, and the permitted position range can be set using the positioning data stored in the storage means 2. Further, an authentication unit is provided for determining whether or not an operation input is possible in setting the permitted position range.

  Hereinafter, the positioning device A of this embodiment will be described in more detail. As shown in FIG. 1, the positioning device A includes a GPS antenna 11 serving as a positioning means 1, a GPS receiving unit 12, a control unit 13, a built-in memory 21 serving as a positioning means 1 or a storage means 2, and a connecting means 3. The connection part 31 used as this is comprised.

  The GPS antenna 11 and the GPS receiving unit 12 receive a radio wave from a GPS satellite, thereby acquiring a GPS signal necessary for positioning of the current position and transmitting it to the control unit 13. The control unit 13 includes a CPU that performs overall control, and generates positioning data that specifies the current position of the positioning device A such as latitude, longitude, and altitude by calculating GPS signals. The generated positioning data is recorded in the built-in memory 21 in correspondence with the time data.

  Instead of such a single positioning type terminal, it may be a network assist type terminal that receives positioning calculation assistance from a positioning server (not shown).

  The control unit 13 includes a comparison unit that compares the positioning data with the permitted position range, and performs control to permit or prohibit access from the external device 4 based on the comparison result. Furthermore, the control unit 13 includes an authentication unit that performs user authentication, and determines whether or not the permitted position range can be set based on the authentication result.

  In addition to the positioning data and time data as described above, the built-in memory 21 stores various data such as a permission ID list that is collated at the time of user authentication by the authentication means. Is also possible.

  The connection unit 31 includes, for example, a USB (Universal Serial Bus) controller and a USB connector, is a communication interface with the external device 4 such as a personal computer, and may be a conventionally used one. The setting of the permitted position range of the positioning device A and other various operation inputs are performed from the external device 4 via the connection unit 31, but the positioning device A is provided with an operation unit and directly operated. Also good. Further, by connecting to the external device 4, the latest calculated positioning data can be read directly from the control unit 13, or the positioning data recorded in the built-in memory 21 can be read and displayed.

  Therefore, the user can use it as a navigation system by carrying and moving the positioning device A and the external device 4, and by reading out and displaying the positioning data recorded in the built-in memory 21, It is also possible to confirm the route traveled later.

  Further, the positioning device A can exchange data between the connected external device 4 and the positioning device A, and transfers various data stored in the external device 4 to the built-in memory 21. It can be recorded. Conversely, the external device 4 can read out positioning data, time data, and other various data recorded in the internal memory 21.

  Further, when data is exchanged from the external device 4, user authentication is performed in the conventional manner that requires an ID and a password before the data exchange. Furthermore, in the positioning apparatus A of the present invention, an additional data protection function by the comparison means is provided by setting the permitted position range. This is designed so that data cannot be exchanged unless it is within the permitted position range.

  Therefore, the positioning device A is effective when carrying data with a limited place to be used from the beginning, for example, when the meeting material is held on a business trip and the conference material data is stored in the built-in memory 21 and carried. Device. In this case, the business trip destination is set to the permitted position range, and the conference material data stored in the internal memory is protected so as to be used only by the set business trip destination.

  Hereinafter, the setting of the permitted position range and the operation of the protection function will be described.

  First, a method for setting the permitted position range will be described. Setting of the permitted position range requires user authentication by an authentication means. First, when the user tries to set the permitted position range from the external device 4, an authentication unit requests an ID and a password. When an ID and password are input from the external device 4 in accordance with this request, the ID and password input in the control unit 13 are compared with the permission ID list recorded in the internal memory 21. As a result of the collation, if it is authenticated that the user is permitted in advance, the setting input of the permitted position range is permitted. On the other hand, since the password is not permitted in advance, if it is not authenticated, the setting input of the permitted position range is rejected.

  Next, the permitted position range is set using the positioning data recorded in the built-in memory 21. Specifically, positioning data that is a permission reference position is selected from the positioning data of a previously visited place, and a permission position range is determined by designating an area having a radius of several meters from this permission reference position. When selecting the positioning data, it is possible to select by referring to the time data recorded corresponding to the positioning data. Also, by specifying the direction and distance from the positioning data, a position that is a certain distance away from the positioning data in a certain direction can be set as the permitted reference position.

  Finally, the data protection operation will be described with reference to the flowchart of FIG.

  When the external device 4 is connected to the connection unit 31 of the positioning device A in which the permitted position range is set (step S01), the control unit 13 reads a signal from the external device 4 and the comparison unit is activated. The comparison means grasps the generated positioning data current position (step S02) and compares it with the set permitted position range (step S03). As a result of the comparison (step S04), when it is determined that the current position is within the permitted position range, conventional user authentication is performed (steps S05 and S06). When the input ID and password are authenticated by collation with the permission ID list by this user authentication, access from the external device 4 is permitted and data is normally transferred between the built-in memory 21 and the external device 4. Exchange can be performed (step S07).

  If it is determined that the current position is not within the permitted position range, access from the external device 4 is prohibited, and data in the built-in memory 21 cannot be read or recorded in the built-in memory 21. (Step S08). In this case, conventional user authentication is not performed.

  Therefore, in the positioning device A of this embodiment, the permitted position range is set using the positioning data recorded in the built-in memory 21, so that the permitted position can be easily set without the user preparing new position information. A range can be set. Further, in this method of setting the permitted position range, software for specifying position information such as map software is not required, so that the positioning apparatus A can be easily set without allowing an increase in cost. It is.

  In addition, since an authentication means for determining whether or not an operation input is possible is provided in setting the permitted position range, only the authenticated user can set the permitted position range, and the positioning apparatus A has higher security. Is.

  In addition, in order to protect the data by using the positioning data, even if the positioning device A in which the confidential information is recorded is lost during movement, the positioning data and the confidential information are leaked to a third party. Can be prevented.

The block diagram which shows the positioning apparatus which is one Embodiment of this invention. The flowchart which shows the operation | movement of the data protection of the positioning device. The block diagram which shows the edge apparatus which is a prior art example.

Explanation of symbols

A Positioning device 1 Positioning means 2 Storage means 3 Connection means 4 External equipment

Claims (2)

And positioning means for positioning a current position by receiving radio waves from GPS satellites, are accessed and memory means for storing positioning data positioning in the positioning means, from an external device by connecting an external device to said memory means and a connection means without as, in the positioning apparatus capable of displaying the stored positioning data to the external device in the storage means, the direction and distance relative to the positioning data recorded in the storage means comparing means in the allowed range of positions previously set by being designated input said determining whether containing the positioning data of the current position, and further comprising, from the comparison result of the comparison means, the positioning current position the permission not within the location range, the positioning device being characterized in that none to prohibit access from the external device.   2. The positioning apparatus according to claim 1, further comprising an authentication unit that determines whether or not an operation input is permitted in setting the permitted position range.

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