System and method for remotely locating communication error support for hydraulic supports

A method for remotely locating a communication error support for hydraulic supports, comprising the following steps:

• step I, initializing a program;
• transmitting, by a control panel, a command to a support controller through a data converter;
• transmitting, by the support controller, information to two drivers, respectively;
• step II, receiving, by the two drivers, the command;
• and transmitting the command to CANH twisted pairs and CANL twisted pairs, wherein by a principle of time optimization, a command reaching the twisted pairs at first is used as a receiving command, and a response command is returned to the support controller according to an original path and is transmitted to the control panel;
• step III, forcing command transmission to be ended when a bus for transmitting the command of a node has an error;
• repeatedly transmitting, by the support controller, the command again;
• triggering a timer when a message is transmitted for the (N+1)th time;
• ending timing when a transmitted signal reaches a fault node, wherein if a main node is a first hydraulic support of the hydraulic supports, a nth hydraulic support of the hydraulic supports is faulted, and the main node is a hydraulic support node corresponding to the support controller;
• and
• step IV, calculating, by the support controller, the fault node according to a formula
• n
• =
• t
• t
• ′
• =
• p
• ⁢
• t
• 8
• ⁢
• m
• ,
• and feeding back the fault node onto the control panel, wherein m is a number of bytes of the message transmitted at each time;
• t is a time timed by a timer;
• and p is a network speed of a CAN bus, and a unit of the network speed of the CAN bus is kbps.