Abstract
The design task to design a microcontroller as the core of large-capacity electrical system temperature protection controller, and the protection of the electrical temperature control.
The controller system is AT89S51 as the core chip, and external expansion built on the periphery of chips. Download cable to download the corresponding procedures, on the one hand temperature protection system in the motor did not work as a system under the control of the core work of the independent operation mode, in order to activate the motor some time ago to the motor preheating, that is, from the internal motor stator Collecting the change in temperature sensors and external information collected by the ambient temperature sensor information, after A / D converter, the MCU can be handled independently, and the final results sent to the temperature data processing system to protect the executive arm of the electrical heating system for the implementation of temperature . On the other hand the state of the electrical work to achieve real-time motor temperature display. Temperature control of the motor, motor in a safe temperature range of changes, when not guarantee that request, are given voice, flashing warning signals.
In the design process, taking into account the possible impact of interference on the system, in the system by adding the software and hardware aspects of the anti-jamming measures to enhance the anti-interference capability.
Keywords: micro-controller; AT89S51; ADC0809; AD590; Motor temperature protection