Abstract
The system we study is a system to be control the temperature of water. Generally,we use Microchip to implement the controlling system.It is exceptly in our system.In order to carry out the function of brodcast the temperature ,We use the better blue print after we think deeply.so,we use SPCE061A which have the speech-signal processing function.
If we use 89c51 ,They need to be a lot of peripheral equipments.The system introduces 16 bit SPCE061A which was produced by LINGYAN company to control the temperature of the water.The “61 board”has the ability to programme on-line and debug on-line. Also,the exploitation circumstance is friendly and easily to use and can transfer the speech function directly.Based on these we can predigest the course of exploitation and use litterer time.
It uses key-press on the facility of “61 board” to set the temperature that wanted; SPCE061A has the ability to deal with speech signal processing.Its facility “61 board” has audio-output circuit.Using power amplifier SPY0030 to drive sperker,it will accomplish the ability to speech report.
It uses PT1000 whose physical and chemistry is steady on high temperature and oxidation circumstances as sensor to collect the datas of the water.Though the amplifier the signal can be magnified .then it is transmitted to the port of A/D transform (There are 7 channels than can switch simulate signal into digital .we can use down-lead IOA0-IOA67directly.Then we chose IOA3 port )of the SPACE061A which has been written programme. when the SPCE061A receives the signal,it will process the datas and control the temperature of water by control the electric cooker using PID arithmetic. At the same time,it has numeral show circuit to show the wanted and the current temperature.
Key words: SPACE061A;PT1000;PID arithmetic
