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Positioning system, mobile terminal, and recording medium

A portable terminal and positioning system technology, applied in satellite radio beacon positioning system, positioning, radio wave measurement system, etc., can solve problems such as inability to realize power saving

Active Publication Date: 2021-10-26
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the premise of the power saving in Patent Document 1 is that a plurality of beacons are arranged on the ground, and it is effective indoors where beacons are arranged, but it is effective in places where no beacons are arranged, such as outdoors, typically when hiking or mountain climbing. power saving cannot be achieved

Method used

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  • Positioning system, mobile terminal, and recording medium
  • Positioning system, mobile terminal, and recording medium
  • Positioning system, mobile terminal, and recording medium

Examples

Experimental program
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no. 1 Embodiment approach

[0022] (1) Hardware structure:

[0023] The positioning system 10 of the first embodiment is composed of N (N is an integer greater than or equal to 2) portable terminals and positioning satellites SS used by a plurality of users. M units (M is an integer greater than 1 and less than N) among the N units of mobile terminals function as first mobile terminals, and the remaining N-M units function as second mobile terminals. In the first embodiment, the case of N=3 and M=1 will be described as an example.

[0024] Such as figure 1 As shown, the positioning system 10 of the first embodiment is composed of three portable terminals 50A, 50B, and 50C capable of receiving radio waves from the positioning satellite SS. When the portable terminals are not distinguished, they are referred to as portable terminals 50. The respective portable terminals 50A, 50B, and 50C are carried by users PS1, PS2, and PS3, respectively. Among them, the portable terminal 50B carried by the user PS2 ...

no. 2 Embodiment approach

[0055] Next, a second embodiment will be described. The positioning system 10A of the second embodiment is composed of eight mobile terminals 50a to 50h capable of receiving radio waves from the positioning satellite SS and performing positioning. These eight mobile terminals 50a to 50h form a group, and in the second embodiment, the first current position is exchanged only within the group. Similar to the first embodiment, a first mobile terminal operating as a master device and a second mobile terminal operating as a slave device exist in the group. Furthermore, in the second embodiment, there is a mobile terminal called a master that specifies which of the mobile terminals in the group is the master and which is the slave.

[0056] Figure 8 It is a flowchart showing a group creation processing routine executed by the mobile terminal 50a as the host. In the second embodiment, it is assumed that a group consisting of specific members such as a party consisting of a total ...

no. 3 Embodiment approach

[0082] The positioning system 10A of the third embodiment has the same device configuration as that of the second embodiment, and only the mobile terminal for positioning the second current position is different. In the first embodiment and the second embodiment, the second current position is obtained on the side of the portable terminal operating as a slave device ( Figure 4 , step S320). On the other hand, in the third embodiment, the same processing is performed on the side of the mobile terminal operating as the master. Specifically, in image 3 In step S140 shown, it is set that the mobile terminal of the slave device periodically outputs the BLE beacon using the communication unit 65 . In addition, the mobile terminal operating as a master device periodically receives BLE beacons from each mobile terminal operating as a slave device, and detects their relative positional relationship. Then, the second current position of each mobile terminal operating as a slave is...

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Abstract

The invention provides a positioning system, a mobile terminal, and a recording medium. The power consumption caused by respective positioning of a plurality of portable terminals is reduced as a whole. In a positioning system configured to perform positioning using N mobile terminals, where N is an integer of two or greater, each of the mobile terminals includes a positioning device, a communication device configured to exchange information with another mobile terminal using wireless communication, and a battery configured to supply power to the positioning device and the communication device. Each of first mobile terminals that are some of the mobile terminals activates the positioning device to perform positioning of a first current position, and a second mobile terminal other than the first mobile terminals reduces at least power to be used by the positioning device, and uses information of the first current position positioned by the first mobile terminal, and the information exchanged with the first mobile terminal by the communication device to perform positioning of a second current position.

Description

technical field [0001] This application relates to positioning technology. Background technique [0002] There is known a positioning system (GNSS) that detects a position on the earth's surface using satellites for positioning. In addition, a method has been proposed in which a plurality of beacons are placed on the surface of the earth, and radio waves from each beacon are detected to perform positioning. In Patent Document 1 below, it is proposed to stop the operation of a GNSS circuit that consumes a large amount of power when positioning using a beacon is possible in order to achieve power saving. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2018-48955 [0004] However, the premise of the power saving in Patent Document 1 is that a plurality of beacons are arranged on the ground, and it is effective indoors where beacons are arranged, but it is effective in places where no beacons are arranged, such as outdoors, typically when hiking or mountain climbing....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/80H04W52/02G01S19/34
CPCH04W4/80H04W52/0209G01S19/34H04W64/00Y02D30/70G01S5/0081G01S5/0284G01S11/06G01S19/05
Inventor 冈野惠一毛利勇一
Owner SEIKO EPSON CORP