Avr-based Multi-point Network Temperature Acquisition System

The temperature control is an important constituent which is the intelligence lives at home, and the temperature examination is the temperature control prerequisite.The temperature examination including examined and establishes the temperature of each room, in order to realize this function, needs to design a system to gather in the room the multi-spot temperature.In addition, the system should transmit the temperature information to equipment in each room, realizes all can carry on the examination and the establishment the temperature in each room.This system by DS1820 took the intellectualized temperature sensor, uses 1-wire which DALLAS corporation uses especially to gather the multi-spot temperature.This sensor has overcome the tradition temperature survey system measuring accuracy lowly, the periphery hardware electric circuit complex, the reliable low status shortcoming, has the temperature measurement system simply, the temperature measurement precision high, the connection convenient, takes the mouth line few and many merits, has brought the enormous convenience for the multi-spot temperature survey.The design begins from the hardware and the software two aspects, through analyzes the characteristic of each kind of sensor, lists several kind of feasible plans. According to the functional design application goal, chooses one kind of appropriate plan, reduces the cost and the power loss, established an easy to operate portable multi-spot temperature gathering system, the endeavour has achieved the most appropriate overall system the need not to waste.This system mainly applies in the family and room temperature gathering and other additional function.Realize the above of function, must solve many machine correspondences and the multi-spot temperature gathering question.The correspondence compares including many machine correspondence pattern analysis and chooses, temperature gathering namely inserts including multi-spot temperature gathering as well as one new method realization namely uses.In addition also includes the keyboard and the LCD driver compilation as well as the operation. Finally carries on the summary and the comparison to the system final result, to designs the question which in the process exists to carry on the analysis comparison, and obtained some useful data through the experimental way.Through to the experimental result comparison confirmation, proved this method is feasible.This design has realized multi-spot temperature gathering and many machine correspondences, proposed the method which one kind of realization namely inserts which namely uses the multi-spot temperature gathers.