Abstract:Thetemperature cruises the examintion instrument is a refrigerator to examine a part of the system automatically, this lesson an intelligence for is a kind ofly with 8051 single a machines for core constituting instrument system, that temperature cruises the examintion instrument cans cruise to return to examination to 64:00 temperature proceeding with show that can examine to a certain proceeding fixed-point again with show, at examine at the same time to can proceed the sound and light report to the police, taking a string of a communication connects the oscular temperature cruises the examintion instrument . Whole system is be spread by temperature to feel machine electric circuit, the electric voltage enlarge the electric circuit, many roads examination passage choose the electric circuit, A/ D conversion electric circuit, anti- interference electric circuit, minimum system electric circuit, keyboard manifestation electric circuit, the sound and light report to the police the electric circuit constitute.
Therefore, can is divided into four parts from the function top of whole system:
Part one:Cruise to return to examination part. When press to cruise to return to examination that function key, system can from the 1 road to 64 roads cruise to return to examination and display the number of the examination with the temperature value
Part two:The fixed-point examination part.The fixed-point examination can carry out in first beginning carried out too can at cruise return examination of process.When the fixed-point examination is over but pressed to cruise the key of Cruise to return to examination again downward carry out to cruise to return to examination.
Part three:The sound and light reports to the police the part. First set up a temperature upper limit value, be to examine a certain temperature value that upper limit the value,
Part four:A correspondence is part of. The system takes a string of a data for the correspondence connects, canning realize manyly the machine correspondence also can practice with the machine of PCs correspondence.
The main characteristics of this system is:
1.Can the number that examine expand system to 64 road. Can realize to cruise to return to examination to examine with the fixed-point, and two kinds of examinations can hand over to proceed with each other.
2.Can realize the sound and light report to the police.
3.Taking a correspondence connects, can realize correspondence and correspond by letter with place of honor machine.
Key word:Cruise to return to examination, the fixed-point examines, the sound and light reports to the police, platinum electric resistance, emulation switch, a line corresponds by letter.
