Door lock system for trailers and cargo containers

摘要

The door lock system for trailers and cargo containers comprises a linear actuator releasably mounted on a back plate member to slidably engage a sliding bolt with a receptor on a tubular frame member of the trailer or cargo container to prevent the opening of the trailer or cargo container doors. A controller unit has an integrated circuit configured to control the operation of the linear actuator and report the status of the door to a central location. A position switch is used to indicate whether the door is open or closed so that the controller unit can automatically engage the locking mechanism to lock the door as soon as it is closed. A keypad allows a user to enter a code to unlock the door. A radio in the controller unit permits wireless communication to report status and to allow central command control over the doors.