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Two-dimensional positioning method and device for intelligent key of vehicle

A positioning method and smart key technology, applied in vehicle components, transportation and packaging, anti-theft vehicle accessories, etc., can solve the problems of high cost, complex system, low positioning accuracy, etc., to reduce system cost and simplify the key positioning system , Improve the effect of positioning accuracy

Pending Publication Date: 2022-04-22
NANJING SILERGY SEMICON TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes a vehicle smart key two-dimensional positioning method and device that utilizes the existing tire pressure monitoring system to realize the positioning of the smart key, so as to solve the problem of low positioning accuracy and complex systems in the prior art. and the high cost of

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  • Two-dimensional positioning method and device for intelligent key of vehicle
  • Two-dimensional positioning method and device for intelligent key of vehicle
  • Two-dimensional positioning method and device for intelligent key of vehicle

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Embodiment Construction

[0082] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0083] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0084] This embodiment provides a positioning device and a positioning method for a smart key of a vehicle, such as figure 1 As shown, the positioning device includes a plurality of locators, a master node, a key, and four wireless communication modules of the tire pressure monitoring syste...

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Abstract

The invention discloses an intelligent key two-dimensional positioning method and a positioning device for a vehicle, which can realize accurate positioning of a key by adopting a designed two-dimensional positioning algorithm through an AOA direction finding technology of BLE 5.1 and above and a BLE RSSI (Received Signal Strength Indicator) in combination with position information output by a gravity sensor on the basis of an existing TPMS (Tire Pressure Monitoring System) BLE system of the vehicle. The method can improve the positioning precision of the key and the accuracy of discrimination inside and outside the vehicle, simplifies the key positioning system, and reduces the system cost.

Description

technical field [0001] The invention relates to an intelligent positioning system, and more specifically, to a two-dimensional positioning method and device for an intelligent key of a vehicle. Background technique [0002] Tire Pressure Monitoring System (TPMS), English Tire Pressure Monitor System. Its function is to automatically monitor the tire pressure in real time during the driving process of the car, and to alarm the tire leak and low air pressure to ensure driving safety; the wireless-based tire pressure monitoring system is divided into a wireless communication module and a receiver, The wireless communication module uses the temperature and pressure sensors and wireless transceivers in the tires to send data to the receiver, monitors the pressure and temperature of each tire in real time, and transmits the monitored data to the receiver by wireless for display; In case of abnormal conditions such as tire leakage, high or low tire pressure, or high temperature, t...

Claims

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Application Information

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IPC IPC(8): B60R25/24B60C23/04
CPCB60R25/248B60C23/0479B60C23/0416B60C23/0437Y02D30/70
Inventor 伏家杰林春勃
Owner NANJING SILERGY SEMICON TECH CO LTD
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