TCAS are divided into two categories: TCAS I and TCAS ii. Both systems can display air traffic similar to maps. When other aircraft approach, both systems can provide "air traffic report (or consultation and suggestion)" (TA).
TCAS I can detect 7000 to 10000 feet up and down, and 15 to 40 nautical miles back and forth. When an aircraft approaches, it will warn the pilot of the altitude and position of the other aircraft 40 seconds in advance. At present, the most widely used second-generation air collision avoidance system (TCAS II) will warn pilots with sound and display, which is called Resolution Advisory (RA), and will instruct collision avoidance actions with voice, such as "Climb! Climb up! Climb! " "dive! Descent! Down! " . If another aircraft is equipped with an air collision avoidance system, the opposite warning will be issued. The third generation air collision avoidance system (TCAS III) not only has up-and-down collision avoidance measures, but also increases the left and right collision avoidance capabilities.
If it helps, I hope to adopt it!