Strong electromagnetic pulse protection device for track circuit receiver

Abstract

A strong electromagnetic pulse protection device for a track circuit receiver relates to the technical field of strong electromagnetic pulse protection, and is characterized in that a first-stage compartment (5), a second-stage compartment (6) and a third-stage compartment (7) are respectively arranged in a box body; then, a front-stage suppression printed circuit board (9), a second-stage filtering function printed circuit board (10) and a rear-stage high-speed amplitude limiting printed circuit board (11) are respectively arranged in the first-stage compartment, the second-stage compartmentand the third-stage compartment, so that the strong electromagnetic pulse endurance capacity of a signal loop of the track receiver is effectively improved; and meanwhile, on the premise that signal transmission is not affected, the protection effect is good, the suppression ratio is high, and the method is suitable for large-scale application and popularization.

Description

technical field [0001] The invention relates to the technical field of strong electromagnetic pulse protection, in particular to a strong electromagnetic pulse protection device for a track circuit receiver. Background technique [0002] It is known that rail transit, as the main means of land transportation, has the advantages of large transport capacity, low cost, strong adaptability, and good safety, and plays an important role in promoting economic development. With the rapid development of the production capacity and technical level of the electronics industry, the complex electronic information systems in the electronic system of rail transit are also increasing, which leads to the increasing harm of the electromagnetic environment (especially strong electromagnetic pulse) to the electronic information system. Therefore, The requirements of the system for strong electromagnetic pulse protection are also getting higher and higher. [0003] As the core of the track circ...

AI Technical Summary

Problems solved by technology

None of the current track circuit receivers has been designed to protect against strong electromagnetic pulses. It has been proved by experiments that under the threat of irradiation by various strong electromagnetic pulses (such as HEMP, UWB, NP-HMP, EMP, etc.), the track receiver signal The circuit is most susceptible to interference and damage from strong electromagnetic pulses, resulting in reduced performance or failure of equipment, damage to internal components, etc.

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