Electric vehicle charging management system and method based on low temperature compensation
Multi-model engine upper cylinder cover lifting appliance and self-weight unlocking method
Highway road condition monitoring and early warning device
ETC parking online transaction system compatible with license identification equipment
Expressway ETC lane toll collection device and use method thereof
Real-time monitoring system and method for running speed of vehicles on highway
ETC (Electronic Toll Collection) equipment and use method thereof
Information playing method and device for ETC partner, storage medium and electronic equipment
Control device for realizing heavy-load reversible motion by using small control force
Engine cylinder cover lifting appliance and locking method