How to control air compressor with mobile phone

Short message module Air compressor mobile phone remote communication module is a mobile phone remote transmission module developed by our company according to the communication protocol and data format of air compressor controller. He can connect MAM series with communication function (other models can be customized) for data transmission and SMS contact with remote mobile phones. The communication module has an 8-bit terminal, a bayonet, an antenna socket and four indicator lights (the red light is the power light and the three green lights are the signal intensity lights). Signal intensity lamp: the signal intensity is less than15 when a lamp is on; When the two lights are on, the signal intensity is15 ~ 25; When the three lights are on, the signal strength is greater than 25 (the mobile signal strength is greater than 3 1), and the low signal strength will lead to the decline of communication reliability. Operation Insert the communication module into the mobile GSM mobile phone card (the metal face of the card faces upwards towards the antenna), connect the antenna, connect 24V AC or DC, and observe whether the signal intensity light is on. When the signal intensity light is on, the following operations can be performed: the air compressor must have a communication interface (RS-485 interface) and the hardware interface is effective (the label of the separate display panel is "T" and the label of the integrated controller is "T"). At this time, the "communication mode" in the user parameter operation mode is set to "computer"; If the communication code of only one air compressor is set to "00 1", "c001"will be displayed on the air compressor controller; If multiple air compressors are connected, they will be set to "00 1", "002" and "003" in turn. The short message sent will show the status of the air compressor coded according to the installation address. SMS CommandsMost SMS commands are sent by the management mobile phone to the module mobile phone number through SMS (two mobile phones can be used to query the command number, see the introduction below), and the command keywords and punctuation marks use half-width characters. The following is a detailed explanation of the SMS command. Set the mobile phone number ((format SETPH)). After the short message module is powered on, the signal indicator lights up. You must use this command for the first time. The first setting number is used as the management number of the module, because most of the following commands need to be operated with this number (other numbers have no operation authority). The module can set five numbers, the first one is the management number, and the other four are ordinary numbers. Management number can be used to set, also can be used to query and receive air compressor early warning information, ordinary number can only be used to query and receive air compressor early warning information. For example, send the short message "SETPH" to the mobile phone number of the module. If it is the first time, it will be used as the management number. If the command is sent through an administrative number, the number will be used as a normal number. After the setting information is sent out, you will receive the message sent back by the module in about 35 seconds. If it is the first time to set, it returns: "Management number is set successfully!" If the ordinary number is set, it returns: "Number set successfully!" If the command format is incorrect, a message will be returned: "Wrong number format!" . This command can only be set for the first time or with the management number (the first time is because the management number does not exist in the module). Ordinary number operation will receive a reply of "no permission setting", and other numbers will not receive any reply except the number saved in the module.