In 2018, Guangxi Security Bureau purchased five sets of portable license plate recognition systems from Huimingjie Technology Co., Ltd. in two batches. When tasks need to be performed in any place within the jurisdiction, the portable license plate recognition system can be used to monitor vehicles at the checkpoint. The leaders of the command center can timely understand the on-site situation of the front-end checkpoint, so that leaders can command and dispatch, and protect the security of the venue or residence in a timely manner.