Design Of Wireless Testing System For Dynamic Parameter Of Bicycle Athlete

Testing system for dynamic parameter of bicycle athlete is designed to improve the performance of the bicycle athlete in short term. It is project put forward by the sport institute of Jilin province. The system can test the bicycle athlete's parameter on time, and put the parameter into the database. It can also draw the dynamic characteristic curve of the dynamic parameter according the data in the database. This is realized by programming with Visual Basic. As the bicycle sport is universal today, preceding this system can not only increase the tournament level of the bicycle athlete, but also make use of computer to measure all kinds of athletics exercise parameter prevail. There are many factors that determine the speed of the bicycle athlete. We can find the problems existing in the training by testing the trample pressure, trample frequency and heart rate of the bicycle athlete. The athlete can solve the problems and improve their performance by it. The research work presented in this paper designs hardware, software, and methods of processing data. ⑴Design scheme of the testing system A testing system is consisting of sensor, signal process part and display part. It is need to install three types sensors that output signals is digital data in order to omit to use A/D convector. This testing system collects the three parameters with pressure sensor, HL sensor and cardiac sounds sensor. After the parameters are collected, the data is sent to the computer. The computer will store and process the data. If the testing system sends the data with wire, it will influence the athlete. So the data are sent through wireless means. ⑵Method to measure the parameter ①Measure the trample pressure of the athlete The testing system measure the athlete's trample pressure through pressure sensor. Because the signal output by the sensor is so weak that the computer can't detect it. So we designed a circuit to amplify the signal. ②Measure the trample frequency of the athlete The testing system measure the athlete's trample frequency through HL sensor. Because the signal output by HL sensor is square wave that can be detected by the counter 8253, so it does not need analog-digital...