Design And Realization Of Intelligent Measurement System For Running

The rapid progress of modern social science and technology has made electronic technology continue to integrate into all areas of people’s lives, the traditional competitive sports test project testing methods have undergone tremendous changes, especially the measurement of running time and the number of means of the circle has been completely unable to meet the modern Social people’s high demand. The new processor FPGAs and the increasingly sophisticated radio frequency identification technology (RFID) have entered the field of measurement of running time, ensuring that the game is open, fair and impartial, reducing manpower and material loss, making the results more accurate and fast.Based on the study of the timing system of the marathon shoelace withelectronic tag and the form of the carpet antenna, this measurement system designs an intelligent measurement system for the running of the standard 400m track and field.And the measurement system also changes the traditional evaluation system of the single-chip design and uses (field programmable logic array) FPGA for the hardware carrier, Qsys for the chip system development tools, Nios Ⅱ IDE for the compiler environment, Modelsim for the function and timing simulation software,the use of system-on-chip design Method to complete the control of the various modules, and ultimately to achieve the hardware and software design of the running sports intelligent evaluation system. The main research results are as follows:(1) By using the ISO18000-7 protocol, the FPGA is used to control the radio frequency transceiver module NRF905 to design the reader and the active electronic tag with a processor, and to achieve its on-chip system design and hardware implementation through the modular design method.Finally realize the reader to read and write the identification operation of the plurality of moving electronic tags in its coverage area.and improve the communication distance, avoide the higher production cost of the carpet antenna.(2) A new type of DCBS (dynamic collision binary search algorithm) suitable for active electronic tags with processor is designed and used in this measurement system for dealing with the identification process of multi-label collision problem.Greatly improve the speed of collision detection, and the reader can identify the minimum 945 per second, And finally use the Modelsim simulation software to verify the correctness of the anti-collision algorithm.(3) For the standard 400m track and field runway, in the radio frequency coverage does not coincide with the premise, in a circle set up a number of readers,in order to identify the electronic tags, effectively avoid the process of measuring the athletes through the runway foul situation.(4) In response to the starting point of the foul, the design has also joined the pressure sensor with the starting device to make up for the marathon in the RFID timing system in the standard track and field in the 400m and other race starting point detection deficiencies.(5) Through adding the use of wireless data transmission, liquid crystal display and the host computer design to improve the system and make the design more compact, easy to lay, low power consumption. It not only improves the accuracy,reduces labor consumption, and can meet the test and the actual needs.