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Positioning device

A positioning device, Bluetooth device technology, applied in the direction of near-field transmission system using transceivers, etc., can solve the problems that affect positioning performance, position and angle estimation are prone to fluctuations, etc., and achieve the effect of improving stability

Inactive Publication Date: 2017-02-15
CHONGQING DACHENG GRACE NC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a positioning device, which solves the technical problem in the prior art that the position and angle estimation of the receiving device using the Bluetooth signal source tends to fluctuate, which affects the performance of positioning

Method used

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  • Positioning device

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Embodiment Construction

[0009] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] Such as figure 1 As shown, it is a positioning device, including at least one Bluetooth device 10 for single-frequency broadcasting. The Bluetooth device 10 for single-frequency broadcasting includes a Bluetooth module 1, a microwave circuit 2 for processing Bluetooth radio frequency signals of the Bluetooth module, and A power supply 3 for supplying power to the bluetooth module, and an antenna 4 connected to the microwave circuit for externally radiating bluetooth radio frequency signals, and the bluetooth module 1 is connected to the microwave circuit 2 .

[0011] Wherein, the bluetooth device 10 of the single-frequency broadcast is one, and the bluetooth device of the single-frequency broadcast also includes an external...

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Abstract

The invention relates to the field of location positioning, and discloses a positioning device. The broadcasting and communication of Bluetooth signals and the communication and control with external peripheral equipment are achieved through a Bluetooth module. A microwave circuit processes Bluetooth radio frequency signals of the Bluetooth module. A receiving terminal can be allowed to effectively distinguish the signals of different frequency bands from the same equipment. Respective RSSI-distance correspondence curves can be established based on the different frequency bands. The stability of the ranging is improved. By recognizing the broadcast signals of the different frequency bands, a receiving device can effectively judge the quality of a current broadcasting channel, and then can reduce multi-path interference from the human body and the surrounding environment by means of frequency diversity.

Description

technical field [0001] The invention relates to the field of position positioning, in particular to a positioning device. Background technique [0002] As a low-power communication device, Bluetooth devices are used for indoor positioning and local area positioning. (RSSI), judge the distance and angle according to the change of RSSI, however, because the Bluetooth communication protocol is frequency hopping communication, resulting in the instability of its transmission power, further, in the actual scene, the transmission signals of different frequencies in space Different propagation conditions in different frequency bands also lead to different RSSI in each frequency band. The instability of this RSSI leads to fluctuations in the position and angle estimation of the receiving device using the Bluetooth signal source, which affects the positioning performance. Contents of the invention [0003] The invention provides a positioning device, which solves the technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/02
Inventor 许林
Owner CHONGQING DACHENG GRACE NC TECH CO LTD
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