System and method realizing remote control of on-site equipment through connection of short messages and programmable logic controller (PLC)

Abstract

The invention discloses a system and a method realizing remote control of on-site equipment through connection of short messages and a programmable logic controller (PLC). The system comprises a mobile phone terminal and an equipment-side system. The equipment-side system comprises the PLC used to control work of the equipment, a short message receiving and sending unit used to be communicated with the mobile phone terminal, and a single chip microcomputer used for analysis of content of the short messages, wherein the short message receiving and sending unit is connected with the single chip microcomputer which is connected with the PLC. According to the system, the PLC is remotely controlled by the short messages, an adaptive distance is long, and any mobile phone can be used to send instructing short messages to a TC35I module and a mobile phone card which are communicated with the PLC. The system is not influenced by the number of the mobile phone sending the short messages. Meanwhile, the PLC can send failure warning information data to a designated mobile phone number through the TC351I module and the mobile phone card so that maintaining people can conveniently understand failure information at first time so as to quickly rush to repair.

Description

technical field [0001] The invention relates to a remote control system for field equipment realized by connecting with a PLC through a short message. Background technique [0002] At present, many equipment and technical personnel are located in two places, which generally include the following three situations: [0003] 1. The manufacturer in A sells the machine to B, and the machine failure in B needs to be repaired by the technician of A; [0004] 2. The machine at A is faulty, and it happens that the maintenance staff of A is not in A on a business trip; [0005] 3. Site A needs to remotely control the equipment at site B, such as controlling valve switching and motor action. [0006] Under the above circumstances, the technicians cannot know the working conditions of the equipment, and the technicians also cannot realize the remote control of the equipment, which often causes the equipment to be unable to be repaired or shut down in time, resulting in large economic ...

AI Technical Summary

Problems solved by technology

[0006] Under the above circumstances, the technicians cannot know the working conditions of the equipment, and the technicians also cannot realize the remote control of the equipment, which often causes the equipment to be unable to be repaired or shut down in time, resulting in large economic losses.

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