Automobile tire pressure monitoring system using blue-tooth technique

A car tire and pressure monitoring technology, applied in the direction of tire measurement, near-field transmission system using transceivers, advanced technology, etc., can solve problems such as limited transmission power, inability to indicate tire low pressure status, single frequency band, etc.

Inactive Publication Date: 2009-05-06
无锡翱天电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, indirect TPMS has certain limitations
The first is that the indicator light cannot indicate which tire is under low pressure.
Second, it cannot detect which tire is under-inflated when both tires on the same axle or side are under-inflated
But because of the single frequency band used, the anti-interference ability is poor
Coupled with the limited transmission power, it is difficult to use it on a large vehicle with multiple tires

Method used

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  • Automobile tire pressure monitoring system using blue-tooth technique

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with drawings and embodiments.

[0024] Such as figure 1 As shown, the present invention includes a sensor module installed in each car tire, a bluetooth transmitting module and a bluetooth receiving module installed on the driving platform of the car; the bluetooth transmitting module includes a digital signal processing unit and a radio frequency (RF) transmitting integrated circuit; The sensor module includes a pressure sensor and a semiconductor temperature sensor. The pressure sensor and the semiconductor temperature sensor are used to collect relevant signals and processed by the digital signal processing unit. The pressure / temperature signal is processed by the application-specific integrated circuit ASIC / SoC in the TPMS sensor module, and transmitted to the digital signal processing unit installed in the Bluetooth transmitter module through its SPI port (serial peripheral interface), and then ...

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Abstract

The invention relates to an automobile tire pressure monitoring system which adopts the Bluetooth technology, in particular to a low-power consumption tire pressure monitoring system of a large vehicle with the number of tires more than eight, comprising a sensor module and a Bluetooth transmitter module which are arranged in each automobile tire and a Bluetooth receiving module which is arranged on an automobile bridge. The pressure monitoring system has the advantages that as frequency domain extension of the Bluetooth is operated, the sensor in each tire can accurately communicate with a receiver on the automobile bridge, thus avoiding the mutual interference of the sensors of all the tires and the interference of the tire pressure sensors of the adjacent automobiles; and a master micro-network and a slave micro-network of small range of the Bluetooth also can carry out topological extension, thus being easy to establish a plurality of tire pressure monitoring systems.

Description

technical field [0001] The invention relates to an automobile tire pressure monitoring system using bluetooth technology, in particular to a tire pressure monitoring system with low power consumption for large vehicles with more than eight tires. Background technique [0002] The car tire pressure monitoring system (TPMS) is mainly used to automatically monitor the tire pressure in real time when the car is running, and to give an alarm to the tire leak and low pressure to ensure driving safety, which is the life safety guarantee for drivers and passengers early warning system. During the high-speed driving of a car, tire failure is the most worrying and difficult to prevent for all drivers, and it is also an important reason for sudden traffic accidents. According to statistics, 70%-80% of the traffic accidents on the expressway are caused by blown tires. Keeping the standard tire pressure for driving and finding the tire leaks in time are the key to prevent blown tires, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04H04B5/02
CPCY02D30/70
Inventor 张健
Owner 无锡翱天电气科技有限公司
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