AOD positioning method and device, computer-readable storage medium, and terminal
A positioning method and technology of a positioning device, applied in the field of communication, can solve the problems of increasing the calculation amount and power consumption of the receiving end, reducing the accuracy of the transmission angle, positioning error, etc., so as to improve the positioning accuracy, reduce the power consumption, and reduce the calculation amount. Effect
Active Publication Date: 2021-09-24
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology
[0004] However, in an indoor environment, multipath problems will occur due to the reflection of buildings, and the distance between the sending end and the receiving end is also changing. When the distance is long or the multipath problem is serious, the sending The accuracy of the angle decreases, which in turn leads to positioning errors
Moreover, calculation based on all received AoD signals also increases the amount of calculation and power consumption at the receiving end
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[0031] In the Bluetooth wireless technology for position positioning, Angle of Departure (AoD) positioning technology has been paid more and more attention. This technology can be applied in the indoor environment for high-precision indoor positioning, and the positioning accuracy can reach within 1m.
[0032] refer to figure 1 , figure 1 It is a schematic diagram of an application scenario of an AoD positioning method in the prior art. The transmitting end 11 transmits to the receiving antenna 13 via the antenna array 12 , and then is received and analyzed by the receiving end 14 . Specifically, signals sent to the same receiver by different transmitters have different AoDs, or signals sent to the same receiver by different antennas in the antenna array of the same transmitter have different AoDs, so according to the triangulation method, the relationship between the receiver and a receiver can be calculated Or the relative coordinates of multiple sending ends, so as to rea...
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An AoD positioning method and device, a computer-readable storage medium, and a terminal, the method comprising the following steps: receiving AoD signals of multiple sending ends; judging whether the sending ends are It is an effective sending end; AoD positioning is performed according to the AoD signal of the effective sending end. The scheme of the present invention can filter out the sending end with serious interference, perform AoD positioning only based on the effective sending end to improve the positioning accuracy, and reduce the calculation amount in the AoD positioning process of the receiving end.
Description
technical field [0001] The present invention relates to the field of communication technologies, in particular to an AoD positioning method and device, a computer-readable storage medium, and a terminal. Background technique [0002] In the Bluetooth wireless technology for realizing positioning, the Angle of Departure (AoD) positioning technology has been paid more and more attention. This technology can be applied to high-precision indoor positioning in indoor environments, and the positioning accuracy can reach within 1m. [0003] Specifically, the AoD positioning method is to receive signals sent by a plurality of antenna arrays from the transmitter (Transmitter) to the receiver (Receiver), and calculate the transmission angle of each transmitter based on the phase difference between different transmitters and the receiver, and then according to the triangle The measurement method calculates the relative coordinates of the receiving end and one or more sending ends, so ...
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IPC IPC(8): H04W64/00
CPCH04W64/006
Inventor 梁宏邓利坚
Owner SPREADTRUM COMM (SHANGHAI) CO LTD