Intelligent testing system and method for ground screen

Abstract

The invention relates to an intelligent testing system and method for a ground screen. The testing method includes the steps that a grounding electrode is pre-buried in an underground testing area, a testing line is connected into a main testing device, and the grounding electrode is not connected with the main testing device in a non-testing period; when testing is needed, a far-end server sends an instruction or a testing button is pressed locally, the grounding electrode is connected into the main testing device, an internal exciting circuit adds fixed-frequency alternating voltage to an electrode tip, testing currents are input, then the main testing device collects a part of the testing currents and carries out current sampling on a current electrode, testing data which are not optimized are calculated according to the ohm law, the testing data are substituted into a formulated optimization algorithm according to a live environment and optimized, and then the testing result is output; ultimately, connection between a pre-buried testing electrode and the main testing device is cut off, power supply of an excitation source is stopped, and the main testing device enters a normal display state and receives far-end and local operation instructions at any time.

Description

technical field [0001] The invention relates to an unattended monitoring system for a ground network, in particular to an intelligent detection system and a testing method for a ground network. Background technique [0002] At present, the main tools for grounding resistance testing are test devices such as shaking meters and grounding resistance testers. The test method requires manual on-site testing. The difference in the implementation of wiring leads to a large error in the actual test results of each test, and a large deviation from the actual grounding resistance, which can be used as a reference. [0003] The main problems of the current grounding resistance test are as follows: [0004] 1. Due to the limitation of the site, the measurement cannot be wired according to the standard requirements. The existing technology needs to be measured under standard wiring, which cannot meet the requirements in actual measurement. [0005] Since the computer rooms are general...

AI Technical Summary

Problems solved by technology

Therefore, the current measurement methods for the grounding resistance of railway system detection stations are non-standard and inaccurate

[0006] 2. The electromagnetic field environment is complex and interferes greatly with the test

[0009] 3. Personal and equipment safety cannot be guaranteed during the existing technology testing process

[0010] The machine room generally adopts the grounding meter measurement (three-pole method), and the grounding device needs to be disconnected from the equipment. The equipment is in a bad operating environment during this disconnection measurement, especially in the thunderstorm season. There are security risks

[0011] 4. Excessive financial, manpower and material costs for grounding resistance testing in the prior art

Due to many sites, relatively long distances, and inconvenient transportation, the measurement is labor-intensive, time-consuming, and expensive

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