Gas Water Heater Online Testing System Design And Implementation,

In past., because the detection method of water heater is basically adopted manual setting parameter and the measurement data, there exist many drawbacks, such as low productivity effect, poor product reliability caused by manual debugging. It is urgent for the gas application manufacturers to resolve the problems, both how to improve the test work efficiency of gas equipment, ease workers labor intensity and artificial error maximally, and to improve safe reliability of products.According to the above, the product auxiliary test system is designed based on the old product design, which improve the automation of product testing. The main method is that product controller data based on data of auxiliary test system, Tester debug the controller of product to make their data consistently and make the controller leave factory. Product run according to the parameter of debug.The primary coverage of these is as follow:1 The work principle of the whole test sysem has been studied. The controller of gas hot-water heater and auxiliary test system gather the same physical quantity(such as temperature, flow rate, pressure etc.) ,and upload these datum to PC separately.2 Hardware and driver of auxiliary test system has been accomplished. It provide truthful environment data for the test water heater.3 Driver of product controller has been achieved. It sure for the normal operation of the controller of product.4 Application software of PC has been designed. Its function is to transmit order to MCU, To show data from MCU and display curved line. It is a fundamental tool for tester.5 The joint debugging of hardware and software, functional test of system has been accomplished.The system has passed the spot test, the test efficiency of system has been enhanced effectively. Test time of device debugging reduce from half an hour to 5 minutes. In past ,parameter to show inconvenient ,such as gas consumption, water pressure, gas pressure, speed of fan ,can be shown on PC conveniently. The application effect of system not only lower the requirement of of worker's experience ,but also bring the debugging error down greatly. In the meantime, because the system can show the real time curve, powerful tool have given to these product design by this system. Furthermore, original datum of leave factory has stored permanently into database, this is favorable for the production, management, after-sale services of company.