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Tire pressure monitoring module and tire positioning system and method

A positioning method and tire technology, applied in tire measurement, tire parts, vehicle parts, etc., can solve problems such as hidden safety hazards, inaccuracy, and vulnerability to environmental influences, achieve high-precision automatic positioning, and reduce installation costs.

Pending Publication Date: 2021-07-23
NANJING SILERGY SEMICON TECH CO LTD
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Problems solved by technology

[0002] In the traditional tire pressure monitoring system, the one-to-one correspondence between the tire pressure detection module and the car tire position needs to be set in advance, which brings a lot of inconvenience to the installation and debugging process.
If the specified tire pressure detection module is not installed on the specified tire, the user will receive the wrong tire pressure alarm signal, which brings great safety hazards to long-distance road driving
[0003] At present, the existing tire positioning technology mainly uses the Bluetooth signal strength indicator (RSSI) for ranging, and then performs rough ranging and positioning calculations by substituting the measured distance information into the existing signal ranging model. The positioning technology uses many Bluetooth anchor points, which is insufficient in calculation speed, has a large positioning delay, is easily affected by the environment, and is not accurate enough

Method used

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  • Tire pressure monitoring module and tire positioning system and method
  • Tire pressure monitoring module and tire positioning system and method
  • Tire pressure monitoring module and tire positioning system and method

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Embodiment Construction

[0076] 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.

[0077] 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.

[0078] Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another eleme...

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Abstract

The invention discloses a tire pressure monitoring module, a tire positioning system and a tire positioning method for a vehicle. The left and right positioning of the tire is realized by using the phase relation of the magnetic field intensities in two different directions measured by a magnetometer in the tire pressure monitoring module, and the front and back positioning of the tire is realized by using the size relation of the angle of arrival (AOA) of a first Bluetooth module in the tire pressure monitoring module relative to a multi-antenna Bluetooth host; therefore, high-precision automatic positioning of the vehicle tire is realized, and each tire pressure monitoring module can be mounted on any tire without any distinguishing, so that the mounting cost is reduced.

Description

technical field [0001] The invention relates to the technical field of vehicle monitoring, in particular to a tire pressure monitoring module for vehicles, a tire positioning system and a method. Background technique [0002] In the traditional tire pressure monitoring system, the one-to-one correspondence between the tire pressure detection module and the position of the car tires needs to be preset before leaving the factory, so it brings a lot of inconvenience to the installation and debugging process. If the specified tire pressure detection module is not installed on the specified tire accidentally, the user will receive a wrong tire pressure alarm signal, which brings great potential safety hazards to long-distance road driving. [0003] At present, the existing tire positioning technology mainly uses the Bluetooth signal strength indicator (RSSI) for ranging, and then performs rough ranging and positioning calculations by substituting the measured distance information...

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Application Information

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IPC IPC(8): B60C23/04
CPCB60C23/0433B60C23/04B60C23/0416B60C23/0437B60C23/0486B60C23/0444
Inventor 伏家杰孙中杰林春勃刘志纲
Owner NANJING SILERGY SEMICON TECH CO LTD
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