CN111273087A - Ground resistance on-line monitoring implementation method based on communication dynamic loop monitoring system - Google Patents
Ground resistance on-line monitoring implementation method based on communication dynamic loop monitoring system Download PDFInfo
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- CN111273087A CN111273087A CN201910978086.8A CN201910978086A CN111273087A CN 111273087 A CN111273087 A CN 111273087A CN 201910978086 A CN201910978086 A CN 201910978086A CN 111273087 A CN111273087 A CN 111273087A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40228—Modbus
Abstract
The invention provides a method for realizing on-line monitoring of ground resistance based on a communication dynamic ring monitoring system, which is characterized in that data of the ground resistance of each machine room is collected locally, and then the data is transmitted to a monitoring server of an environment monitoring system by each embedded server through a network, so that complete concentration and data sharing are realized, the on-line monitoring function of the ground resistance is realized on a communication dynamic ring monitoring platform, and the on-line monitoring of the ground system in the monitoring range of the dynamic ring system is realized. In the thunderstorm season, resistance data can be acquired without manual work, and the data can be automatically acquired at specified time intervals, so that the online real-time detection can be realized at any time. The station with the resistance value out of the safety range is subjected to alarm prompt, so that information can be acquired in time for rectification, potential safety hazards are reduced, and personal and equipment safety is guaranteed.
Description
Technical Field
The invention relates to the field of power communication, in particular to a method for realizing on-line monitoring of a ground resistor based on a communication dynamic loop monitoring system.
Background
The grounding of the communication machine room is an important technical measure for ensuring the personal safety and the normal work of the communication equipment. When the system is in fault, the fault current can be quickly discharged, and the ground potential is reduced to be increased, so that the safety of personnel and equipment is ensured. The magnitude of the grounding resistance value is an important index for measuring the effectiveness and the safety of the grounding system and identifying whether the grounding system meets the requirements of regulations.
In recent years, equipment damage accidents caused by lightning strikes frequently occur, and most of the accidents are related to unqualified grounding resistance. When the grounding resistance is too large, the huge current generated by lightning stroke can generate very high residual voltage, and the lightning resistance level of the electrified conductor of the equipment protected by the grounding grid itself is reduced, so that the equipment can be damaged. Meanwhile, the grounding device is also corroded by soil acidity and alkalinity, so that the periodic monitoring of the grounding resistance is very important.
Disclosure of Invention
The invention aims to provide an on-line ground resistance monitoring method based on a communication dynamic loop monitoring system aiming at the defects of the prior art, which can automatically acquire data within a specified time interval and can perform on-line real-time detection at any time.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for realizing on-line monitoring of a ground resistor based on a communication dynamic loop monitoring system, which comprises the following steps:
s1, after the data are collected locally by the grounding resistors of the machine rooms, the data are transmitted to a monitoring server of the environment monitoring system by each embedded server through a network, and complete concentration and data sharing are achieved;
s2, driving the environment control main platform by using ModbusTcp;
s3, establishing equipment types in DCIM, selecting monitoring indexes of the equipment types, adding a site to which the equipment types belong and a specific equipment ground resistance meter to a page, and configuring the alarm level, the alarm threshold and an alarm receiver of the indexes;
s4, the ring control main platform pushes the real-time data with the tag ID to a redis database, meanwhile, the real-time data is stored in an infiluxDB database, and then the data is processed through three paths, so that the B/S architecture platform is friendly to display.
Further, the method also comprises the following steps:
s5, alarm data; the DCIM background acquires data on the redis service through the tagID and judges whether to alarm or not according to the alarm threshold value of the index; sending alarm data information in a configured alarm mode, splicing the alarm data information into a Json format, communicating with the front end through a webSocket and displaying the alarm data information to an alarm page, wherein the time frequency of obtaining redis data by the page is 3 seconds; meanwhile, storing alarm data into a Mysql database in a persistent manner;
s6, real-time data; the DCIM background acquires real-time data on a redis service through tag ID, the real-time data is communicated with the front end through webSocket, the front end analyzes the Json format data into a format capable of being displayed on a page after acquiring the Json format data, and the Json format data is assembled and displayed;
s7, historical data; and directly requesting the JSON format data in the inflxDB database by the DCIM front-end page in an http mode, and analyzing and displaying the data.
Further, the step S1 further includes the following steps:
s11, connecting a 485 signal line of the grounding resistance meter to a 485 port of the embedded host to complete hardware connection;
s12, according to the communication protocol of the grounding resistance instrument provided by the equipment manufacturer, carrying out drive development, analysis, conversion and optimization to generate a grounding resistance instrument drive; the driving file is put into a software library of the embedded host, equipment is newly built, communication parameters of the grounding resistance meter are defined, a page is added, the parameters of the grounding resistance meter are put on the page to be displayed, and meanwhile, data are transmitted to the environment control main server through a network.
Further, the communication parameters include baud rate, data bits, stop bits, and check bits.
The invention has the beneficial effects that: adopting a mode of 'centralized management and decentralized acquisition': the grounding resistance on-line detector of each machine room locally collects data; and then all embedded servers transmit the data to the monitoring server of the environment monitoring system through the network, so that complete concentration and data sharing are realized.
The on-line monitoring function of the grounding resistance is realized on the communication moving ring monitoring platform, and the on-line monitoring is carried out on the grounding system in the monitoring range of the moving ring system. In the thunderstorm season, resistance data can be acquired without manual work, and the data can be automatically acquired at specified time intervals, so that the online real-time detection can be realized at any time. The station with the resistance value out of the safety range is subjected to alarm prompt, so that information can be acquired in time for rectification, potential safety hazards are reduced, and personal and equipment safety is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an implementation method for on-line monitoring of ground resistance based on a communication moving loop monitoring system according to the present invention;
fig. 2 is a second schematic structural diagram of an implementation method for on-line monitoring of ground resistance based on a communication moving-loop monitoring system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, an implementation method for online monitoring of ground resistance based on a communication moving loop monitoring system includes the following steps:
s1, collecting data locally by the grounding resistance of each machine room; and then all embedded servers transmit the data to the monitoring server of the environment monitoring system through the network, so that complete concentration and data sharing are realized.
And S11, connecting the 485 signal line of the grounding resistance meter to the 485 port of the embedded host to complete hardware connection.
And S12, according to a ground resistance meter equipment communication protocol (a document defined according to a standard Modbus protocol) provided by an equipment manufacturer, carrying out drive development, analysis, conversion and optimization to generate a ground resistance meter drive (libETCR2800. so). The driving file is put into a software library of an embedded host, equipment is newly built, communication parameters (baud rate, data bit, stop bit and check bit) of the grounding resistance meter are defined, parameters (equipment variables) of the grounding resistance meter are defined, a page (bottom layer display) is added, the parameters of the grounding resistance meter are put on the page for display, and meanwhile, data are transmitted to an environment control main server through a network (by using a standard ModbusTcp protocol).
S2, the environmental control main platform uses ModbusTcp drive (ModbusTCP. dll), newly builds site equipment, defines communication parameters (baud rate, data bit, stop bit and check bit) of the site equipment, defines site parameters (all equipment variables on the embedded host), adds pages, and presents the site equipment friendly through the C/S architecture platform.
S3, establishing equipment types in the DCIM, selecting monitoring indexes of the equipment types, adding the site to which the equipment types belong and the specific equipment ground resistance meter to a page, and configuring the alarm level, the alarm threshold and the alarm receiver of the indexes.
S4, the ring control main platform pushes the real-time data with tag ID (index number) to a redis database, meanwhile, the real-time data is stored in an infiluxDB database (time sequence database), and then the data is processed through three paths, so that the B/S architecture platform is friendly to display.
S5, alarm data: the DCIM background acquires data on the redis service through tag ID (index number) and judges whether to alarm according to the alarm threshold of the index. And sending the alarm data information in a configured alarm mode, splicing the alarm data information into a Json format, communicating with the front end through a webSocket and displaying the alarm data information to an alarm page, wherein the time frequency of obtaining the redis data by the page is 3 seconds (the time can be set). Meanwhile, the alarm data is stored in the Mysql database in a persistent mode.
S6, real-time data: the DCIM background acquires real-time data on a redis service through tag ID (index number), the real-time data is communicated with the front end through webSocket, and the front end analyzes the Json format data into a format capable of being displayed on a page after acquiring the Json format data and performs assembling display.
S7, historical data: and directly requesting the JSON format data in the inflxDB database by the DCIM front-end page in an http mode, and analyzing and displaying the data.
The communication dynamic ring monitoring system can call the grounding resistance data of each access station at any time by clicking a grounding resistance function menu through a friendly man-machine interaction interface, thereby realizing on-line monitoring.
And the moving loop monitoring system automatically alarms the stations with the grounding resistance data exceeding the threshold value and sends short messages for prompting.
The grounding resistance data can be acquired in time, and online monitoring is realized. The system does not need manual work to rush to the field test in sequence regularly, reduces the cost, reduces the potential safety hazard, ensures the personal and equipment safety, and has important significance for improving the safety production.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. A method for realizing on-line monitoring of ground resistance based on a communication dynamic loop monitoring system is characterized by comprising the following steps:
s1, after the data are collected locally by the grounding resistors of the machine rooms, the data are transmitted to a monitoring server of the environment monitoring system by each embedded server through a network, and complete concentration and data sharing are achieved;
s2, driving the environment control main platform by using ModbusTcp;
s3, establishing equipment types in DCIM, selecting monitoring indexes of the equipment types, adding a site to which the equipment types belong and a specific equipment ground resistance meter to a page, and configuring the alarm level, the alarm threshold and an alarm receiver of the indexes;
s4, the ring control main platform pushes the real-time data with the tag ID to a redis database, meanwhile, the real-time data is stored in an infiluxDB database, and then the data is processed through three paths, so that the B/S architecture platform is friendly to display.
2. The method for realizing the on-line monitoring of the ground resistance based on the communication dynamic ring monitoring system according to claim 1, characterized by further comprising the following steps:
s5, alarm data; the DCIM background acquires data on the redis service through the tagID and judges whether to alarm or not according to the alarm threshold value of the index; sending alarm data information in a configured alarm mode, splicing the alarm data information into a Json format, communicating with the front end through a webSocket and displaying the alarm data information to an alarm page, wherein the time frequency of obtaining redis data by the page is 3 seconds; meanwhile, storing alarm data into a Mysql database in a persistent manner;
s6, real-time data; the DCIM background acquires real-time data on a redis service through tag ID, the real-time data is communicated with the front end through webSocket, the front end analyzes the Json format data into a format capable of being displayed on a page after acquiring the Json format data, and the Json format data is assembled and displayed;
s7, historical data; and directly requesting the JSON format data in the inflxDB database by the DCIM front-end page in an http mode, and analyzing and displaying the data.
3. The method for realizing the on-line monitoring of the ground resistance based on the communication dynamic loop monitoring system according to claim 1, wherein the step S1 further comprises the following steps:
s11, connecting a 485 signal line of the grounding resistance meter to a 485 port of the embedded host to complete hardware connection;
s12, according to the communication protocol of the grounding resistance instrument provided by the equipment manufacturer, carrying out drive development, analysis, conversion and optimization to generate a grounding resistance instrument drive; the driving file is put into a software library of the embedded host, equipment is newly built, communication parameters of the grounding resistance meter are defined, a page is added, the parameters of the grounding resistance meter are put on the page to be displayed, and meanwhile, data are transmitted to the environment control main server through a network.
4. The method for realizing the on-line monitoring of the ground resistance based on the communication dynamic ring monitoring system according to claim 3, is characterized in that: the communication parameters comprise baud rate, data bits, stop bits and check bits.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113176447A (en) * | 2021-04-23 | 2021-07-27 | 中铁武汉勘察设计院有限公司 | Grounding monitoring and early warning system and method for railway substation |
| CN113407630A (en) * | 2021-06-21 | 2021-09-17 | 云智慧（北京）科技有限公司 | Real-time synchronization method and device for digital twins of transformer substation |
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Application publication date: 20200612 |
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