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Simplex Communication Tire Pressure Monitoring System Research and Development

Author: LiuZhengRong
Tutor: LiuWenCai
School: Chongqing University
Course: Control Theory and Control Engineering
Keywords: TPMS RF communications Low power consumption Microcontrollers
CLC: TP274.4
Type: Master's thesis
Year: 2008
Downloads: 100
Quote: 0
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Abstract


Tire pressure monitoring system (TPMS) is the second ABS, airbags car safety electronic products for the tire pressure in the vehicle was the temperature in real-time automatic monitoring , and irregularities that occur in real-time alarm , a traffic safety protection warning system . The one-way communication TPMS the detection transmitter module installed in each tire ( referred to as the tire module ) and installed in the cab of the receiver display module ( called monitoring module ) composition . The tire module of the tire pressure , temperature detection value with the RF wireless communication method transmitted to the monitoring module ; monitoring module displays each tire pressure and temperature values ??, and in pressure, temperature abnormality alarm . This article is suitable for medium to develop , for the low-end cars, one-way communication TPMS product prototype target , closely around the communication reliability and low power consumption of these two one - way communication TPMS key technical issues , a detailed analysis of relevant theory and implementation techniques the prototype of the principle of existing products and on the basis of the study , improve the design , the new the MPXY8020 sensor , PIC16F636 microcontroller , and MAX1479 RF transmitter chip the tire module program and microcontrollers based on the MC33594 RF receiver chip , MC68HC908GZ16 and dot-matrix LCD monitor module program . The paper describes the RF communication program measures and reduce power consumption , hardware circuit design , software algorithms and programming technology , given the experimental prototype test and road test data . The experimental results show that , compared with the existing prototype , the present subject completed the transmission power of the tire module is significantly improved significantly reduced power consumption of the module . The TPMS product principle prototype high reliability , low power consumption , and cost-effective design goals can be used as a general light vehicle TPMS and product development .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Centralized testing and roving detection system
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