Positioning circuit, positioning system and positioning method based on Bluetooth AOA communication

A Bluetooth communication and positioning circuit technology, applied in the field of positioning, can solve the problems of low positioning accuracy and positioning efficiency, high cost of positioning methods, and inability to be universally applicable, and achieves simple positioning steps, saving positioning measurement costs, and high practical value. Effect

CN110740505APending Publication Date: 2020-01-31深圳市微能信息科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-01-31

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Abstract

The invention discloses a positioning circuit based on Bluetooth AOA communication, a positioning system based on Bluetooth AOA communication and a positioning method based on Bluetooth AOA communication. The positioning circuit comprises a radio frequency communication module, a switch switching module, a Bluetooth communication module, a calibration compensation module and a positioning controlmodule. The switch switching module outputs a driving signal according to the control signal and the radio frequency signal. The plurality of antenna units are respectively located at preset positionsand are driven by the driving signal to sequentially receive the first Bluetooth communication signal. The calibration compensation module calibrates the communication state of each antenna unit to obtain a corresponding phase compensation value. The positioning control module obtains an angle value and a distance value of the to-be-tested equipment according to the phase difference of the multiple paths of first Bluetooth communication signals after phase compensation so as to complete a positioning function on the to-be-tested equipment. The positioning circuit directly obtains the positionof the to-be-measured equipment according to the phase difference, thereby saving the intermediate variable, simplifying the positioning measurement steps, and improving the positioning precision andpositioning efficiency.
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Description

technical field

[0001] The present application belongs to the technical field of positioning, and in particular relates to a positioning circuit based on Bluetooth AOA communication, a positioning system based on Bluetooth AOA communication and a positioning method based on Bluetooth AOA communication. Background technique

[0002] With the continuous improvement of the modern industrial level, the positioning technology of electronic equipment has been widely used in various technical fields such as mobile maps, aircraft flight, and vehicle equipment driving. Through real-time tracking of electronic equipment, the external environment of electronic equipment can be obtained in real time. In order to meet people's location tracking needs; and through precise positioning of electronic equipment, electronic equipment can achieve safer, all-round circuit functions and improve the value of electronic equipment; therefore, for the spatial location of electronic equipment Accurate...

Examples

Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0043] It should be noted that if you need to determine the specific position of an object in the coordinate system, you need to confirm two parameters: the distance value and the angle value. Only by combining the distance value and the angle value can you accurately determine the specific position of the object relative to the reference system. position; based on this, the positioning circuit in the embodiment of the present application can accurately obtain the distance value and angle value of the device under test under the preset reference system, which not only reduces...