Remote detection and control method

The invention discloses a remote detection and control method. The method comprises the following steps: 1) determining an input quantity; 2) initializing an input quantity; 3) collecting input quantity; 4) analyzing the input quantity; and 5) determining and executing a preset program, wherein the input quantity comprises a main control quantity, a secondary control quantity and a remote control quantity, the main control quantity is an input quantity which needs to be detected and participates in interlocking control, the secondary control quantity is an input quantity which needs to be detected and does not participate in interlocking control, and the remote control quantity is a target value interval set by technicians for the main control quantity and the secondary control quantity according to the specific system configuration and the technological process. When a feedback signal cannot be transmitted to the main control unit due to the situations of sensor transmission line damage, sensor fault, contro