Resistance-temperature characteristic measurement system for automotive temperature sensor based on µC/OS-II

Resistance-temperature characteristic is an important performance of thermistor based automotive temperature sensor, so measuring the characteristic is an important technologic process to improve the quality of automobile products and work efficiency. In this paper, an embedded resistance-temperature characteristic measurement system for automotive temperature sensor is designed, which uses ARM7 chip as kernel and preemptive real-time embedded operating system μC/OS-II as software platform. The system has the capability of multi-task real-time scheduling and completely meets the need of real time and reliability. The hardware and software architecture of the system and the implementation method are introduced in this paper.