In a method of controlling display screen statuses and an apparatus, the method includes a signal emitter emitting a detection signal, and a first signal receiver and a second signal receiver receiving a reflection signal of the detection signal by an object. Intensity of the reflection signal received by the first signal receiver is compared with a first threshold for obtaining a first magnitude determination result. Intensity of the reflection signal received by the second signal receiver is compared with a second threshold for obtaining a second magnitude determination result. The display screen statuses are controlled based on the first magnitude determination result and the second magnitude determination result.

A system includes a first device that controls a moving body and a second device that remotely controls the moving body. The first device obtains information around the moving body, movement information of the moving body, and remote control information. The first device calculates a control amount for controlling movement of the moving body based on one of the information and the movement information, switches autonomous movement and remote control of the moving body based on the remote-control information, and transmits one of the information, the movement information, and the control amount to the second device. The second device receives one of the information, the movement information, and the control amount, transmits the remote-control information to the first device, determines autonomous mobility of the moving body based on second information stored remotely, and generates the remote-control information including a determination result.