CN205583858U - An automatic monitoring system for tower structure of high voltage power grid - Google Patents

Abstract

The utility model discloses an automatic monitoring system for high voltage electric network pylon structure mainly relates to the technical field that high voltage electric network pylon structure was monitored, and it has included signal acquisition and modulate circuit, processing circuit, communication circuit, power supply circuit and host computer module, its signal acquisition and modulate circuit link to each other with processing circuit, and processing circuit's main part is embedded system, link to each other with processing circuit, host computer module respectively around its communication circuit, power supply circuit links to each other with signal acquisition and modulate circuit, processing circuit, communication circuit and host computer module in proper order. The utility model discloses monitoring system has replaced the manual work to patrol the line, has both practiced thrift the monitoring expense, has shortened the discovery time of pylon fault point again by a wide margin, provides new high -efficient the support for ensureing high -tension transmission.

Description

An automatic monitoring system for tower structure of high voltage power grid

technical field

The utility model relates to the technical field of high-voltage power grid tower structure monitoring, in particular to an automatic monitoring system for high-voltage power grid tower structures.

Background technique

The high-voltage power grid system is an essential supporting public facility for the operation of modern society. Sudden changes in the structure of high-voltage grid towers and cables usually lead to the interruption of grid power supply, which will further cause huge social and economic losses. State Grid currently adopts the method of manual line inspection to ensure the normal operation of the power grid. It invests as much as 200 million yuan in the inspection line of the power grid every year. The scope is small, and the fault detection and location are not timely. Therefore, the number of power outages due to the tower system is very large, and the maintenance and power outages take a long time. In addition, the risk factor of line inspection work is also very large.

Utility model content

Purpose of the utility model: In order to overcome the above deficiencies, the purpose of the utility model is to provide an automatic monitoring system for the tower structure of the high-voltage power grid. The discovery time of tower fault points provides new and efficient support for ensuring high-voltage power transmission.

Technical solution: In order to achieve the above purpose, an automatic monitoring system for high-voltage power grid tower structure described in the utility model includes a signal acquisition and conditioning circuit, a signal processing circuit, a communication circuit, a power circuit and a host computer module; The signal acquisition and conditioning circuit is connected with the signal processing circuit, and the main body of the signal processing circuit is an embedded system; the front and rear of the communication circuit are respectively connected with the signal processing circuit and the upper computer module, and the power supply circuit is connected with the signal acquisition and the upper computer module in turn. The conditioning circuit, the signal processing circuit, the communication circuit and the upper computer module are connected. The utility model can obtain the change of the vibration signal caused by the structure change of the tower in real time through the signal acquisition and processing circuit, and can report the state of the tower to the monitoring center in time through the communication circuit, so as to implement the full monitoring of the power grid tower within the range , so the power outage rate of the power grid is greatly reduced. Even if there is a power outage, the location of the fault point can be accurately known at the same time as the power outage, and maintenance work can be carried out in time to shorten the power outage time and ensure the quality of the power grid; in addition, it replaces Manual line inspection is eliminated, the monitoring cost is greatly reduced, and the risk factor of work is also reduced.

The signal acquisition and conditioning circuit in the utility model includes a vibration sensor, a filter circuit and an amplification circuit. The signal acquisition and conditioning circuit of the utility model well collects and preprocesses the tower vibration signal.

As a preferred solution, the number of vibration sensors described in the utility model is 1-3. The vibration sensor in the utility model extracts signals in a 1-3 dimensional orthogonal mode.

The upper computer module described in the utility model is provided with an automatic alarm device. The automatic alarm device in the utility model automatically sends out an alarm when abnormality occurs in the tower frame and cables.

The automatic alarm device described in the utility model is an acousto-optic alarm, and the prompting effect is very remarkable.

Beneficial effect: compared with the prior art, the utility model has the following advantages:

1. An automatic monitoring system for the tower structure of the high-voltage power grid described in the utility model, which realizes the full cover monitoring of the power grid tower within the scope, greatly reduces the power outage rate of the power grid, even if there is a power outage It can also accurately know the location of the fault point when the power is cut off, and carry out maintenance work in time.

2. The automatic monitoring system for the tower structure of the high-voltage power grid described in the utility model realizes 24-hour unattended operation, greatly reduces the monitoring cost, and reduces the risk factor of work at the same time.

3. An automatic monitoring system for the tower structure of the high-voltage power grid described in the utility model, which can detect abnormalities and faults of the tower structure within the range in real time, greatly shortens the time for maintenance response, and reduces the power grid due to The number of power outages due to abnormalities in the tower system shortens the power outage time and improves the power supply quality of the grid.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the monitoring system in the present invention.

In the figure: 1 signal acquisition and conditioning circuit, 2 signal processing circuit, 3 communication circuit, 4 power supply circuit, 5 upper computer module.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model.

Example 1

As shown in Figure 1, an automatic monitoring system for a tower structure of a high-voltage power grid in this embodiment includes a signal acquisition and conditioning circuit 1, a signal processing circuit 2, a communication circuit 3, a power supply circuit 4 and a host computer module 5 .

The connection mode of each component is as follows: the signal acquisition and conditioning circuit 1 is connected with the signal processing circuit 2, and the main body of the signal processing circuit 2 is an embedded system; the communication circuit 3 is respectively connected with the signal processing circuit 3 and the host computer module 5 before and after, The power supply circuit 4 is sequentially connected with the signal acquisition and conditioning circuit 1 , the signal processing circuit 2 , the communication circuit 3 and the host computer module 5 . The signal acquisition and conditioning circuit 1 includes three vibration sensors, a filter circuit and an amplifier circuit, and the host computer module 5 is provided with an audible and visual alarm.

As shown in Figure 1, the operating principle of the present utility model is:

(1), first, the signal acquisition and conditioning circuit 1 performs multi-dimensional acquisition and preprocessing on the tower vibration signal, and then sends it to the signal processing circuit 2;

(2), the signal processing circuit 2 analyzes the signal sent by the signal acquisition and conditioning circuit 1 in real time through specific algorithms such as FFT processing and spectrum feature comparison, and compares it with the characteristic spectrum of the tower, and then the obtained tower The status data of the structure is sent to the communication circuit 3;

(3), the communication circuit 3 adopts one-way chain data transmission, and transmits the state data of each tower structure to the upper computer module 5 in one direction forward;

(4), the last host computer module 5 analyzes the received data packets, and saves them in the background database, analyzes and statistically processes the state data of each tower, and generates reports of alarm and fault point information; wherein the power supply Circuit 4 is responsible for supplying power to each module of the system.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements can also be made, and these improvements should also be regarded as Protection scope of the present utility model.

Claims (5)

1. An automatic monitoring system for high-voltage power grid tower structure, characterized in that it includes: signal acquisition and conditioning circuit (1), signal processing circuit (2), communication circuit (3), power supply circuit (4) and The upper computer module (5); the signal acquisition and conditioning circuit (1) is connected to the signal processing circuit (2), and the main body of the signal processing circuit (2) is an embedded system; the front and rear of the communication circuit (3) are respectively It is connected with the signal processing circuit (3) and the host computer module (5), and the power supply circuit (4) is sequentially connected with the signal acquisition and conditioning circuit (1), the signal processing circuit (2), the communication circuit (3) and the host computer module (5) connected. 2. The automatic monitoring system for the tower structure of the high-voltage power grid according to claim 1, characterized in that: the signal acquisition and conditioning circuit (1) includes a vibration sensor, a filter circuit and an amplifier circuit. 3. The automatic monitoring system for the tower structure of the high-voltage power grid according to claim 2, characterized in that: the number of the vibration sensors is 1-3. 4. The automatic monitoring system for the tower structure of the high-voltage power grid according to claim 1, characterized in that: the upper computer module (5) is provided with an automatic alarm device. 5. An automatic monitoring system for a tower structure of a high-voltage power grid according to claim 4, wherein the automatic alarm device is an audible and visual alarm.