Information transmission method, control apparatus, electromagnetic signal transceiver apparatus, and signal processing device

An information transmission method, comprising:

• detecting, by an electromagnetic signal transceiver apparatus, a first fault;
• sending, by the electromagnetic signal transceiver apparatus, a first fault indication (FI) hardwire flag to a first processor of a control apparatus, wherein the first FI hardwire flag is used to indicate that the first fault is generated;
• receiving, by the electromagnetic signal transceiver apparatus, a first request message from the first processor of the control apparatus to request first fault information;
• transmitting, by the electromagnetic signal transceiver apparatus, the first fault information to the control apparatus through a first channel, wherein the first fault information corresponds to the first fault, and the first channel is a control channel;
• detecting, by the electromagnetic signal transceiver apparatus, a second fault, wherein the first fault and the second fault occur in a same task periodicity;
• and
• transmitting, by the electromagnetic signal transceiver apparatus, second fault information to the control apparatus through a second channel, wherein the second fault information corresponds to the second fault, and the second channel is a data channel.

A control apparatus, comprising a first processor, a second processor, a first interface circuit, and a second interface circuit, wherein:

• the first processor is configured to obtain first fault information of an electromagnetic signal transceiver apparatus by using the first interface circuit corresponding to a first channel, wherein the first fault information corresponds to a first fault, and the first channel is a control channel, and wherein obtaining the first fault information of the electromagnetic signal transceiver apparatus through the first channel comprises:
• receiving, by the first processor, a first fault indication (FI) hardwire flag from the electromagnetic signal transceiver apparatus, wherein the first FI hardwire flag is used to indicate the first fault;
• sending, by the first processor, a first request message to the electromagnetic signal transceiver apparatus, wherein the first request message is used to request the first fault information;
• and
• receiving, by the first processor, the first fault information from the electromagnetic signal transceiver apparatus through the first channel;
• the second processor is configured to obtain second fault information of the electromagnetic signal transceiver apparatus, wherein the second fault information corresponds to a second fault, and the first fault and the second fault occur in a same task periodicity;
• and
• the second fault information is from the electromagnetic signal transceiver apparatus and is transmitted by using the second interface circuit corresponding to a second channel, and the second channel is a data channel.