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Electronic device and location information acquisition method

A technology of electronic equipment and altitude information, which is applied in satellite radio beacon positioning systems, measurement devices, radio wave measurement systems, etc., and can solve the problems of reduced measurement time and increased power consumption.

Active Publication Date: 2021-10-15
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to properly obtain three-dimensional positions at non-uniform intervals, it is necessary to match the measurement timing between the electronic device for positioning and the external device for barometric pressure measurement. reduce

Method used

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  • Electronic device and location information acquisition method
  • Electronic device and location information acquisition method
  • Electronic device and location information acquisition method

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Experimental program
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Embodiment Construction

[0024] Embodiments will be described below with reference to the drawings.

[0025] figure 1 It is a block diagram showing the functional configuration of the electronic timepiece 40 as one electronic device (external device corresponding to a smartphone capable of a positioning operation) according to the present embodiment. figure 2 It is a block diagram showing the functional configuration of the smartphone 10 as the other electronic device (external device corresponding to the electronic timepiece 40 for obtaining altitude) according to this embodiment.

[0026] Such as figure 1 As shown, the electronic watch 40 has a CPU 41 (central processing unit), a memory 42 (storage unit), an oscillation circuit 45, a frequency dividing circuit 46, a timing circuit 47, an operation accepting unit 51, a display unit 52, a communication unit 53 and an antenna A4, The measurement unit 54, the power supply unit 60, and the like.

[0027] The CPU 41 is a processor that performs variou...

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PUM

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Abstract

The invention provides an electronic device and a method for obtaining position information. The electronic device includes: a receiving unit that receives radio waves from the positioning satellite; a control unit that performs positioning at predetermined first time intervals based on the radio waves from the positioning satellite received by the receiving unit; and a communication unit that receives radio waves from the external device. Altitude information related to altitude obtained by this external device. The control unit receives the altitude information related to the altitude of the first time interval from the external device at the second time interval wider than the first time interval, and separately receives the altitude information related to the altitude other than the first time interval. In the case of the altitude information related to the altitude other than the first time interval, the positioning is performed at the timing of the reception, and the corresponding ones are made based on the second time interval and the acquisition timing of the altitude information received separately. The results of the timing positioning are associated with the altitude information.

Description

technical field [0001] The present invention relates to an electronic device and a location information acquisition method. Background technique [0002] Known electronic equipment receives radio waves from positioning satellites to perform positioning. By receiving radio waves from four or more positioning satellites, the position, altitude, and current date and time in the horizontal plane can be obtained. The resulting position accuracy varies depending on the configuration of the multiple positioning satellites relative to the electronics. The positions of positioning satellites capable of receiving radio waves are limited to the horizon. Therefore, the altitude position accuracy is generally lower than that in the horizontal plane, and may fluctuate irregularly depending on the arrangement of the positioning satellites. [0003] On the other hand, the following technique is known in which the measured value of the air pressure obtained by the air pressure sensor of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/06G01S19/14G04R20/02
CPCG01C5/06G01S19/14G04R20/02G01S19/45G01S19/51G01S19/34G01S5/0252
Inventor 长谷川幸佑
Owner CASIO COMPUTER CO LTD