Method for integrating transceiver circuit of traffic collision avoidance system (TCAS) with transceiver circuit of S-mode responder

A technology for transceiver circuits and transponders, applied in logic circuits using specific components, logic circuits using basic logic circuit components, aircraft traffic control, etc. Aircraft and other issues, to achieve the effect of simplifying the structure, ensuring safety, and flexible implementation

Inactive Publication Date: 2011-05-18
XIAN FEISIDA AUTOMATION ENG
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Problems solved by technology

[0008] The structure of the TCAS transceiver circuit is basically the same as that of the S-mode transceiver circuit, but it is divided into two different devices, which will inevitably cause problems such as increased system cost, increased volume and weight, so it is not suitable for installation in limited internal space. on a small plane

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  • Method for integrating transceiver circuit of traffic collision avoidance system (TCAS) with transceiver circuit of S-mode responder
  • Method for integrating transceiver circuit of traffic collision avoidance system (TCAS) with transceiver circuit of S-mode responder
  • Method for integrating transceiver circuit of traffic collision avoidance system (TCAS) with transceiver circuit of S-mode responder

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Embodiment Construction

[0024] The invention realizes the transmission / reception circuit inside the TCAS, the transmission / reception circuit inside the S-mode transponder, and the transmission / reception integration between the TCAS and the S-mode transponder through an FPGA, and handles the impact on other functional units.

[0025] 1. For the internal integration of TCAS, a piece of FPGA is used to realize PPM pre-pulse detection and DPSK digital modulation. The principle is as follows image 3 shown. Since this integration is inside TCAS, no additional workload is added to the processor, so there is no possibility of affecting the work of the processor. At the same time, the digital processing circuit is an independent module compared with the other three parts of the circuit. As long as the interface signal is not changed, it will not affect the work of other circuits.

[0026] 2. For the internal integration of the S-mode transponder, an FPGA is used, including sub-modules such as video processi...

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Abstract

The invention relates to a method for integrating a transceiver circuit of a traffic collision avoidance system (TCAS) with a transceiver circuit of an S-mode responder. According to the defects of increased cost, large volume, heavy weight and the like caused by the structural repetition of transceiver circuits of the former system, the method comprises the following steps of: integrating the transceiver circuits in the TCAS by using a large-scale field programmable gate array (FPGA); providing a timing clock signal by using a phase locked loop (PLL); compiling counters in the FPGA to realize a timer; realizing pulse signals by using a plurality of counters; compiling a state machine in the FPGA to identify the pulse signals; and setting a buffer region and a priority to solve the conflict of the system and the problem that a plurality of planes appear at the same time. Compared with the former system, the system has a simple structure, a flexible realization mode and high expandability, and can embody the integration characteristic better.

Description

Technical field [0001] The invention relates to a small airborne collision avoidance system, which belongs to the fields of air traffic management and air traffic safety. Background technique [0002] The anti-collision system on the aircraft, the American aviation system is called the air traffic warning and anti-collision system (hereinafter referred to as TCAS), and the European aviation system is called the airborne collision avoidance system. The meaning and function of the two are the same, and the composition is basically the same. Similar, therefore, the description of the application of the present invention is described with TCAS as the technical background. [0003] After years of development, TCAS system has developed a variety of models, such as: TCAS I, TCAS II, TCAS III, TCAS IV. Among them, TCAS II is currently the most widely used. It can provide aircraft pilots with traffic reminders (TA) that display information such as relative altitude, distance, azimut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G5/04H03K19/177
Inventor 史忠科李超
Owner XIAN FEISIDA AUTOMATION ENG
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