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A wireless positioning method and system

A positioning method and wireless base station technology, applied in wireless communication, electrical components, network planning, etc., can solve the problems that terminals cannot obtain signal strength, wireless signal strength, and WiFi signal strength, etc., so as to reduce manufacturing costs and The effect of running power consumption, improving accuracy and response time, and excellent stability

Active Publication Date: 2021-07-23
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0007] Second, in some application scenarios, the wireless signal strength may not be obtained (for example, the Apple system cannot obtain the WiFi signal strength)
Wireless devices generally send beacon frames at a fixed frequency. After receiving the beacon frames, the terminal can analyze the current signal strength. However, some types of wireless devices (such as Bluetooth) only send beacon frames when they are not connected. In the state, beacon frames will no longer be sent, so that the terminal cannot get the current signal strength

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  • A wireless positioning method and system

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Embodiment Construction

[0049]As analyzed in the background technology, the existing wireless positioning technology based on signal strength needs to deploy many additional WiFi base stations or Bluetooth base stations. If the wireless signal strength cannot be obtained, wireless positioning cannot be implemented. The beacon frame is sent, so that the signal strength of the terminal cannot be obtained through the analysis of the beacon frame, resulting in a positioning failure.

[0050] After research, the inventors found that, besides the signal strength, there is another type of data that can monotonically change with the change of the distance between the terminal and the base station, and this type of data is the data receiving rate. Figures 3-7 show the test results of the inventors, in which Bluetooth is used to communicate with the base station, and the data reception rate is characterized by the data reception interval (when the data frame length is fixed, the effective data reception rate is...

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Abstract

The present invention provides a wireless positioning method and system, wherein the method includes: 1) when a terminal exchanges data with a wireless base station, the terminal or the wireless base station collects the actual data receiving rate of the data exchange; 2) ) executing a positioning algorithm according to the received data reception rate. Based on the solution of the present invention, there is no need to specially set up hardware devices such as GPS, and it is not necessary to deploy a large number of dedicated hardware for wireless positioning in the environment. The present invention realizes the positioning based on the data receiving rate, does not need to communicate separately for the positioning, and the data receiving rate can match with any existing wireless positioning algorithm, and can obtain a better effect than using signal strength in certain environmental conditions .

Description

technical field [0001] The present invention relates to terminal positioning based on wireless communication, in particular to a terminal positioning method and system that can be directly applied to the Internet of Things. Background technique [0002] With the development of the Internet of Things and wireless communication technology, the collection and transmission of sensory data has been more and more widely used in industry and life. For example, machines (such as computers) are interconnected through the Internet, people are interconnected through the mobile Internet and mobile portable devices (such as mobile phones), and the Internet of Things uses ubiquitous communication technology to interconnect everything. IoT terminals include everything, and wireless communication needs to cover long-distance, medium-distance, and short-distance situations. Among various wireless signals, 3G / 4G / 5G is suitable for long-distance communication, WiFi is suitable for medium-dista...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/22H04W64/00
CPCH04W16/225H04W64/006
Inventor 邢云冰陈益强蒋鑫龙刘军发
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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