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Power distribution station monitoring system

A monitoring system and power distribution station technology, applied in the direction of closed-circuit television system, electrical program control, comprehensive factory control, etc., can solve the problem that data communication transmission cannot meet the requirements of video image transmission, the amount of data cannot be obtained above 2M, and the transmission bandwidth Insufficient problems, to achieve the effect of reducing the amount of data transmission, small intervals, and accurate monitoring results

Active Publication Date: 2013-06-05
STATE GRID SHANDONG ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Assuming that the data volume of each frame of pictures is about 100k, and 24 frames of pictures are transmitted per second, the amount of data that needs to be transmitted per second is more than 2M, while the transmission bandwidth of GSM, GPRS or CDMA is insufficient, and the transmission speed is too low. The amount of data transmitted per second cannot be more than 2M, and the data communication transmission through the above communication methods cannot meet the requirements of video image transmission

Method used

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Embodiment 1

[0040] The distribution substation room monitoring system described in this embodiment, such as figure 1As shown, it includes: a digital camera, which is used to monitor the video picture in the power distribution station room, and has a uniquely determined IP address; an image difference extraction unit, built in the digital camera, receives the video picture monitored by the camera For each frame of image, analyze the difference between two frames of images within a set time period, and output the difference part data of the image group with difference; the transmission unit is connected with the image difference extraction unit, and receives the image group with difference. The starting point of the set time period, the first frame image output by the digital camera; simultaneously receive the difference part data of the difference group image output by the image difference extraction unit; and the first frame image and the output of the difference part data; in this embodi...

Embodiment 2

[0043] This embodiment makes the following improvements on the basis of Embodiment 1. The image difference extraction unit includes: an image partition module, which is used to obtain M blocks for each frame of image according to the same partition method, M is a natural number, and each The block is a pixel matrix composed of pixels, and a parameter is configured for each pixel according to the brightness of each pixel, and the parameters corresponding to all pixels in each block form a block array; the image comparison module selects the qth Compare all block arrays in the frame image (1m>1) block arrays and the mth block array in the (q-1)th frame image, then only output the mth block array of the qth frame image; if the qth frame image All block arrays in the (q-1)th frame image are the same as all block arrays in the (q-1)th frame image, and no signal is output; the image processing unit is based on all block arrays in the (q-1)th frame image, Replace the m-th block array...

Embodiment 3

[0047] This embodiment is on the basis of embodiment 1 or embodiment 2, as shown in Figure 3, it further comprises temperature sensor, is used for real-time monitoring temperature value in the substation room; The monitoring system platform transmits through the GPRS The unit receives and displays the data collected by the temperature sensor; the monitoring system platform has a built-in first comparator and a temperature alarm threshold; the first comparator compares the temperature value in the monitoring distribution station room with the temperature Alarm threshold, when the temperature value in the monitored distribution substation room is equal to or greater than the temperature alarm threshold, the monitoring system platform sends an alarm message.

[0048] Furthermore, it includes a humidity sensor for real-time monitoring of the humidity value in the substation room; the monitoring system platform receives and displays the data collected by the humidity sensor through ...

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Abstract

The invention provides a power distribution station monitoring system. The power distribution station monitoring system comprises a digital camera, an image difference extraction unit, a transmission unit, an image processing unit and a monitoring system platform. The image difference extraction unit receives each frame of images of video pictures monitored by the camera, analyzes differences between two frames of images in a preset time range and outputs difference part data of image groups where differences exist. The transmission unit receives the starting point of the preset time range where the image groups with the differences are located and the first frame of images outputted by the digital camera, and meanwhile receives difference part data of different groups of image where the differences exist and outputted from the image difference extraction unit, and outputs the difference part data and the first frame of images. The image processing unit receives the first frame of images and the difference part data outputted from the transmission unit and reduces the video pictures frame by frame according to the first frame of images and the difference part data in the preset time range. The monitoring system platform is connected with the image processing unit, receives each frame of images sent by the image processing unit and continuously displays the each frame of images.

Description

technical field [0001] The invention relates to a monitoring system for distribution substations based on wireless communication technology, which belongs to the technical field of wireless intelligent monitoring. Background technique [0002] With the continuous improvement of modern society's requirements for the degree of automation, various intelligent equipment systems continue to appear, and the intelligence of the power supply and distribution system is also adapted to this requirement. At the same time, with the continuous progress of medium and low voltage monitoring technology and the emergence of intelligent monitoring products, the situation that it was unable to meet the online real-time monitoring requirements of electrical quantity information in terminal power distribution rooms has been gradually improved, and the monitoring function of the entire power supply and distribution system has been further improved. [0003] Such as existing patent document CN1808...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H04N7/18G01K1/02G01K1/024
Inventor 时翔赵生传陈志勇江川武志刚王华广董啸刘明林崔潇李涛王军刘春江毕建鑫郭建豪刘兴波邢宏伟汪有杰
Owner STATE GRID SHANDONG ELECTRIC POWER
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