System and method for monitoring damaged on-off quantity of surge protection device and ground resistance online in real time

A grounding resistance and monitoring system technology, which is applied in the field of electronic communication, can solve problems such as the inability to measure single-point grounding points, and achieve good grounding effects

Active Publication Date: 2013-07-17
CHINA RAILWAY SIGNAL & COMM SHANGHAI ENG BUREAU GRP
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this kind of instrument is that it does not need auxiliary measurement ground, and the measurement process is simpl

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for monitoring damaged on-off quantity of surge protection device and ground resistance online in real time
  • System and method for monitoring damaged on-off quantity of surge protection device and ground resistance online in real time
  • System and method for monitoring damaged on-off quantity of surge protection device and ground resistance online in real time

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0151] Example one

[0152] See figure 1 The present invention discloses a switch data acquisition and monitoring system for damage to the lightning protection device. The system includes a number of data acquisition systems 100, a server 200, and a number of clients 300. The data acquisition system 100 separately collects the status information of the switch value corresponding to the damage of the lightning protection device and the resistance value information of the grounding resistance, which can be displayed on the display device on the corresponding lightning protection cabinet; at the same time, each data acquisition system 100 will The collected data is summarized in the server 200, and the operator can access the corresponding data in the server 200 through the client 300 set remotely. Each lightning protection cabinet can be equipped with a data acquisition system 100, and each data acquisition system 100 collects the collected data to the server 200 through a collect...

Example Embodiment

[0256] Example two

[0257] The difference between this embodiment and the first embodiment is that, in this embodiment, the lightning protection device includes m rows of switching values, a total of s switching values; the number of switching values ​​in each row is the same or different.

[0258] In this embodiment, in each row of switching values, a row of switching values ​​includes at most n switching values; switching value D ab It is defined as the switch value in the ath row and the bth column; where a and b are integers, a∈[1, m], b∈[1, n].

[0259] The damaged switch value data acquisition module includes m row connection lines, n column connection lines, and the switch value D ij The two ends of the ith line are connected to the line K i And the jth column connecting line I j Connection; at the same time, the i-th row connects line K i Or the jth column connecting line I j Connect the switch value D through the corresponding first diode ij Corresponding port; where i and...

Example Embodiment

[0265] Example three

[0266] The difference between this embodiment and the first embodiment is that in this embodiment, in the real-time online monitoring of the ground resistance, the software function module of the microcontroller is composed as follows: Figure 8 Shown; below Figure 8 Each module in the description.

[0267] 1) Constant current source switch control

[0268] This module is mainly responsible for controlling whether to input a constant current source. The constant current source of this device is 20mA.

[0269] 2) Measuring constant current source

[0270] This module is responsible for Figure 6-7 The constant current source is read at the middle V1 point, and it also provides self-calibration of the constant current source before the device leaves the factory.

[0271] 3) Measuring the source of interference

[0272] This module judges whether the interference source is too large when injecting a constant current source and not injecting a constant current source. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a system and method for monitoring damaged on-off quantity of a surge protection device and ground resistance online in the real time. A measuring system comprises a server, one or a plurality of remote monitoring terminals and one or a plurality of data collecting systems. The server is respectively connected with various remote monitoring terminals and all data collecting systems. Each data collecting system comprises a damaged on-off quantity data collecting module and a ground resistance collecting module. Each damaged on-off quantity data collecting module comprises m row-connecting lines and n line-connecting lines. Each ground resistance collecting module comprises a micro-processor module, a constant current source injection module, a sampling voltage reading module and a ground resistance measuring software module. The micro-processor modules are connected with the constant current injection modules, the sampling voltage reading modules and the ground resistance measuring software modules respectively. The system and method can guarantee effective judgment of damaged on-off quantity of all surge protection devices and simultaneously can measure the ground resistance in the real time precisely. The system and method is especially suitable for railway signal lightning protection.

Description

technical field [0001] The invention belongs to the technical field of electronic communication, and relates to an online monitoring system, in particular to a real-time on-line monitoring system for a damaged switch and grounding resistance of a lightning protector; at the same time, the invention also relates to a damaged switch and an Real-time online monitoring method for grounding resistance. Background technique [0002] SPDs include power supply SPDs and signal SPDs. SPDs are also called lightning arresters, surge protectors, surge protectors (Surge Protection Devices, SPD for short), and overvoltage protectors. Lightning protector is a device that prevents being struck by lightning through modern electricity and other technologies. It is widely used in the field of communication and electric power, and has been highly valued by everyone. [0003] There are several switches inside the surge protector. In order to make the interior of the surge protector tidy, the swi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/00G01R27/20
Inventor 王予平张长生徐连海潘云洪陆挺吴旺生陈志雄
Owner CHINA RAILWAY SIGNAL & COMM SHANGHAI ENG BUREAU GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap