航空电子设备 空中交通警戒与防撞系统
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TCAS is an advisory system designed to alert the flight crew to potential conflicts with other transponder-equipped airplanes flying in the same area. If these other airplanes which are usually called intruders, are equipped with an air traffic control radar beacon system ATCRBS or mode S transponder, they will be interrogated and tracked by TCAS.
Civil Aviation Flight University of China 3
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
Currently, there are three versions of the TCAS system in use or in some stage of development; TCAS I, II, and VI.
NBAA 2003
1
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
Traffic Alert and Collision Avoidance System
空中交通警戒与防撞系统
Civil Aviation Flight University of China 2
Civil Aviation Flight University of China 5
Traffic Alert and Collision Avoidance System(TCAS)
TCAS II system
NBAAwk.baidu.com2003
The TCAS system consists of an ATC/TCAS control panel, a TCAS computer and directional antennae. The system requires that an operating mode S transponder be installed in the TCAS airplane. The TCAS system interfaces with other navigation systems and uses EFIS displays for visual advisories and the digital audio control system for aural advisories.
Directional Antenna Omni-directional Antenna
Display
ATC/TCAS Control Panel
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
The TCAS, short for traffic-alert and collision avoidance system, is an independent system; it can perform its functions completely without the assistance of any ground system. Such independence is necessary in oceanic and other non-radar airspace.
Civil Aviation Flight University of China 4
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
TCAS II is the most common system and provides the necessary vertical manoeuvre advice. In accordance with the Joint Airworthiness Requirements, as of the year 2000, all commercial aeroplanes over 15 000 kg, and with a seating capacity of 30 or more passengers, when operating in European airspace, must carry TCAS II.
TCAS II provides TAs as well as RAs，but only involves vertical evasive movement. In addition, the TCAS II system exchanges data with other TCAS II or higher level systems to coordinate resolution advisories. This is to prevent two TCAS equipped aircraft from executing the same evasive maneuver.
TCAS I is a similar system to TCAS II but it is intended for smaller airplanes and does not provide vertical corrective information.
TCAS IV provides TAs and RAs involving both vertical and horizontal maneuvers.
Civil Aviation Flight University of China 3
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
Currently, there are three versions of the TCAS system in use or in some stage of development; TCAS I, II, and VI.
NBAA 2003
1
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
Traffic Alert and Collision Avoidance System
空中交通警戒与防撞系统
Civil Aviation Flight University of China 2
Civil Aviation Flight University of China 5
Traffic Alert and Collision Avoidance System(TCAS)
TCAS II system
NBAAwk.baidu.com2003
The TCAS system consists of an ATC/TCAS control panel, a TCAS computer and directional antennae. The system requires that an operating mode S transponder be installed in the TCAS airplane. The TCAS system interfaces with other navigation systems and uses EFIS displays for visual advisories and the digital audio control system for aural advisories.
Directional Antenna Omni-directional Antenna
Display
ATC/TCAS Control Panel
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
The TCAS, short for traffic-alert and collision avoidance system, is an independent system; it can perform its functions completely without the assistance of any ground system. Such independence is necessary in oceanic and other non-radar airspace.
Civil Aviation Flight University of China 4
Traffic Alert and Collision Avoidance System(TCAS)
NBAA 2003
TCAS II is the most common system and provides the necessary vertical manoeuvre advice. In accordance with the Joint Airworthiness Requirements, as of the year 2000, all commercial aeroplanes over 15 000 kg, and with a seating capacity of 30 or more passengers, when operating in European airspace, must carry TCAS II.
TCAS II provides TAs as well as RAs，but only involves vertical evasive movement. In addition, the TCAS II system exchanges data with other TCAS II or higher level systems to coordinate resolution advisories. This is to prevent two TCAS equipped aircraft from executing the same evasive maneuver.
TCAS I is a similar system to TCAS II but it is intended for smaller airplanes and does not provide vertical corrective information.
TCAS IV provides TAs and RAs involving both vertical and horizontal maneuvers.