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Brake drum temperature measurement apparatus based on wireless transmission

A temperature measurement and wireless transmission technology, applied in the field of vehicle brake drum temperature measurement, to achieve the effect of intuitive measurement results and simple operation

Inactive Publication Date: 2010-12-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual road test, there is no device and method that can directly measure the temperature of the brake drum

Method used

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  • Brake drum temperature measurement apparatus based on wireless transmission
  • Brake drum temperature measurement apparatus based on wireless transmission
  • Brake drum temperature measurement apparatus based on wireless transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] refer to figure 1 , the temperature measurement and transmission unit is fixed on the brake drum, which includes: K-type thermocouple, thermocouple signal processing module using MAX6675 chip, AT89C2051 single-chip microcomputer for transmission, wireless transmission module and power supply using nRF2401 chip. The thermocouple is connected to the inner surface of the brake drum through screws, and the two signal output ends of the thermocouple are respectively connected to the input pin 2 and pin 3 of MAX6675, and the MAX6675 chip, nRF2401 chip and AT89C2051 single-chip microcomputer are sequentially connected with a three-wire analog serial port form connection.

[0026] refer to figure 2 , in the temperature measurement and transmitting unit, the MAX6675 chip of the thermocouple signal processing module uses a three-wire analog serial port to communicate with the AT89C2051 transmitting microcontroller, where the 5 pins of the thermocouple are connected to the 8 pin...

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PUM

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Abstract

The invention relates to the field of temperature measurement for a brake drum of an automobile, and discloses a temperature measurement device for the brake drum based on wireless transmission. The device comprises a temperature measuring and transmitting unit and a data receiving and processing unit, wherein the temperature measuring and transmitting unit is arranged on the brake drum to measure temperature of the brake drum and wirelessly transmit temperature data; and the data receiving and processing unit receives the temperature data, and displays the data.

Description

technical field [0001] The invention relates to the field of brake drum temperature measurement of vehicles, in particular to a brake drum temperature measurement device based on wireless transmission. technical background [0002] At present, trucks and other large and medium-sized vehicles used in my country generally use drum brakes for braking. my country has a vast territory and complex terrain. 75% of the entire land area is located in mountains or hills. Statistics show that my country's mountainous roads have long mileage and steep slopes, and there are countless car accidents caused by brake failure every year. Studies have shown that the high temperature of the brake drum is the main reason for the failure of the brake drum. Therefore, it is necessary to monitor the real-time temperature value of the brake drum during the operation of the vehicle. The wheel rotates together, which makes it very inconvenient to measure the temperature of the brake drum. [0003] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/02G08C17/02G01K1/024
Inventor 付锐郭应时袁伟王畅
Owner CHANGAN UNIV