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Positioning device, method of controlling positioning device
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A positioning device and position positioning technology, applied in positioning, measuring devices, satellite radio beacon positioning systems, etc., can solve the problem of positioning position deviation from the previous positioning position
Inactive Publication Date: 2012-07-04
SEIKO EPSON CORP
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[0010] In addition, even if a pedestrian holding a GPS receiver moves at a slight speed, because the speed represented by the velocity vector is different, although the actual current position is near the last positioning position, there is still a large deviation from the current positioning position. Problem with secondary location
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no. 1 example
[0092] figure 1 It is a schematic diagram showing the terminal 1020 and the like according to the first embodiment of the present invention.
[0093] like figure 1 As shown, terminal 1020 is held by user A. Terminal 1020 is capable of receiving signals G1, G2, G3, G4, G5, G6, G7 and G8 from positioning satellites, such as GPS satellites 12a, 12b, 12c, 12d, 12e, 12f, 12g and 12h. This signal G1 etc. is an example of a satellite signal. Furthermore, the terminal 1020 is an example of a positioning device.
[0094] User A is stationary on the mountain road, such as waiting for rescue due to distress. Moreover, the terminal 1020 is also stationary. The real location of terminal 1020 is location r1. The terminal 1020 can improve the accuracy of user A's rescue by outputting a position as close as possible to the real position when the terminal 1020 is actually stationary.
[0095] However, since the GPS satellite 12a etc. moves on its satellite orbit and the reception stat...
no. 2 example
[0246] Figure 18 is a schematic diagram of the terminal 2020 and the like according to the second embodiment of the present invention.
[0247] like Figure 18As shown, terminal 2020 is held by user A. Terminal 2020 is capable of receiving signals G1, G2, G3, G4, G5, G6, G7 and G8 from positioning satellites, such as GPS satellites 12a, 12b, 12c, 12d, 12e, 12f, 12g and 12h. This signal G1 etc. is an example of a satellite signal. Furthermore, the terminal 2020 is an example of a positioning device.
[0248] The user A is in a mountain road MR, and is waiting for help due to distress, for example. Moreover, when the user is stationary, the terminal 2020 is also stationary. The real location of terminal 2020 is location r1. The terminal 2020 can improve the accuracy of user A's rescue by outputting a position as close as possible to the real position r1 when the terminal 2020 is actually stationary.
[0249] In addition, when the user walks, the terminal 2020 moves at a ...
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Abstract
A positioning device, which locates a position based on satellite signals which are signals from positioning satellites, includes a position holding section which holds a reference position P, a stationary condition determination section which determines whether or not the reference position P satisfies stationary conditions B, an average position calculation section which averages the reference position P satisfying the stationary conditions B and a present located position Pg calculated by positioning to calculate an average position Pav, a position output section which outputs the average position Pav, and a position storage section which stores the average position Pav in the position holding section as the reference position P.
Description
technical field [0001] The present invention relates to a positioning device using a signal from a positioning satellite, a control method of the positioning device, a program, and a recording medium. Background technique [0002] Currently, a positioning system for locating the current position of a GPS receiver using GPS (Global Positioning System: Global Positioning System), which is an example of SPS (Satellite Positioning System: Satellite Positioning System), is widely used. [0003] The GPS receiver receives signals from such as more than or equal to 3 GPS satellites, and uses the difference between the time when the signal is sent from each GPS satellite and the time when the signal arrives at the GPS receiver (hereinafter referred to as the delay time), to obtain each GPS satellite and The distance between GPS receivers (hereinafter referred to as pseudorange). Furthermore, positioning calculation of the current position can be performed using the satellite orbit i...
Claims
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Application Information
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