For management the manhole cover effectively, the manhole covers intelligent monitoring terminal (MCIMT) based on dual frequency RFID and acceleration sensor was proposed in this paper. Through hardware designing, alarm algorithm designing, program debugging and packaging, we developed the MCIMT. The key performance testing and demonstration system operation shown the following results. Firstly, the MCIMT communication distance can achieve 800 meters under the open conditions and 300 meters under the occluded environment reliably. Secondly, the MCIMT embedded special state estimate algorithm can output the correct scene sate of manhole cover. Thirdly, the MCIMT could operation 3 years in manhole cover. Lastly, the demonstration system based on the MCIMT can alarm accurately and timely.
Along with the RFID applied on vehicle technology researching, it is very important that the RFID technology and video technology were combined to management the vehicle moving on the road. Under several projects supported by government, we have a good opportunity to experiment and solve the exact matching problem of the RFID and image of moving vehicle. Firstly, the same space-time exact matching method for the RFID and image of moving vehicle under high speed free flow road conditions was proposed. Secondly, the experimental scheme was made by introducing the vehicle sensing coil to bridge the RFID and image information. Lastly, we obtained a large number of experimental data and made a lot of comparison analysis. The experimental results shown that the method is scientific and practical.
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