Research on Monitoring Method and Device Development of RSU Equipment in ETC System Based on Power Network Transmission
In order to further optimize the signal transmission efficiency and quality of the ETC system,the RFID system tag an-tenna is improved and optimized,thereby enhancing the signal transmission level of the RFID system.Among them,the three param-eters of impedance bandwidth,antenna recognition distance,and power reflection coefficient are mainly adjusted and optimized,and the tag antenna is reconstructed based on the improved results.The simulation results show that compared with the domestic standard ETC antenna,the designed tag antenna fully meets the domestic design standards,and also has a higher return loss of-35 dB,which is significantly higher than the standard-18 dB.This indicates that the antenna has better impedance matching,that is,it can per-form more accurate and stable signal transmission.In summary,optimizing the tag antenna of the RFID system can effectively improve the signal transmission quality of RFID,and has certain practical application value.
ETCradio frequency identification technologylabel antennasignal transmission
万方数据
维普
