Abstract
SCM is the modern computer and electronic technology in emerging areas. The single-chip microcontroller small size and low cost, broad embedded such as toys, household appliances, robotics, instrumentation, automotive, industrial control units, office automation equipment, electronic financial systems, ships , Personal information terminals and communications products, a modern electronic system, the most important intelligence tool. SCM is multi-functional, high-performance, low-voltage, low power consumption, low price of the notable features. Therefore, the use of water tanks for SCM constant temperature control can greatly reduce the input of high economic value and practicality. MCU use of the water tank temperature control and real-time detection figures show, raising labor productivity and product quality, energy conservation and so has a positive meaning. On the market today have some SCM constant temperature control system successfully developed, such as water heater thermostat SCM, SCM resistance furnace temperature control.
The system first temperature sensor on the DS1820 temperature sampling and conversion, will be given to the measurement results Tx SCM; SCM will enter the value and the internal temperature specified unit of a given temperature T comparison, according to the results, through An executive body - SCR on the heater breaking state control in order to achieve the effect of water temperature control. System wide range of heating as a source of constant temperature control of the occasion, such as resistance heaters, electric kettles, light bulbs, according to a simple and reliable, economical and practical features.
Keywords: SCM, temperature sensors, with zero trigger, two-way SCR, heater
