Retractable truck step with wireless door sensor

作者： Richard P. May

DOI:

关键词: Wireless 、 Truck 、 Engineering 、 Controller (computing) 、 Jamb 、 Electronic engineering 、 Stepper motor 、 Enhanced Data Rates for GSM Evolution 、 Sleep mode 、 Transmitter 、 Electrical engineering

摘要: Improvements using a wireless door sensor in each to eliminate modifying vehicle wiring and simplify installation of retractable step controller for the step. Up four magnetic sensors/transmitter are mounted on edge jamb. A magnet is jamb proximity transmitter's when closed. The transmitter operates sleep mode until state changes. Upon movement sends an open status message receiver where data stored determines correct responses. If either side engages appropriate motor lowers remains lowered stops receiving messages indicating closed or has timed out ceasing transmissions.