CN102830669B - Power distribution station room monitoring system - Google Patents
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Abstract
The invention provides a power distribution station room monitoring system which 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 is used for receiving every frame of video images monitored by the camera, analyzing differences of two images within a set time period and outputting differential portion data of image groups with differences; the transmission unit is used for receiving a starting point of the set time period where the image groups with the differences are located, and the first image output by the digital camera, and simultaneously receiving the differential portion data of differential group images with the differences output by the image difference extraction unit, and outputting the first image and the differential portion data; the image processing unit is used for receiving the first image and the differential portion data output by the transmission unit, and restoring by frames according to the first image and the differential portion data in the set time period; and the monitoring system platform is connected with the image processing unit and used for receiving every frame of the images sent by the image processing unit and continuously displaying the same.
Description
Technical field
The present invention is a kind of distribution substation room monitoring system based on wireless communication technique, belongs to the wireless intelligent monitoring technical field.
Background technology
Along with modern society to improving constantly that automaticity requires, various intelligent device systems constantly occur, and the intellectuality of power supply-distribution system has also adapted to this requirement just.The continuous progress of simultaneous mesolow monitoring technique and the appearance of intelligent monitoring product have improved the situation that in the past can't satisfy the online real-time monitoring requirement of terminal switchgear building electric parameters information gradually, the further perfect monitoring function of whole power supply-distribution system.
A kind of security control and alarm apparatus for very-long-range wireless power network is disclosed as existing patent documentation CN1808501A, comprise electric power security alarm module, GSM, GPRS or CDMA communication module, power supply device, with modular electric power security alarm module and GSM, GPRS or CDMA communication module group realize embedded electrical connection, under the control of microprocessor, effectively utilize GSM, the multinomial function of GPRS or CDMA communication module group, antitheft to realize a kind of current collection power, warning out of control, telecommunication interconnect plane monitoring multinomial meets the very-long-range wireless power network convoy device that function is one.
Yet, above-mentioned very-long-range wireless power network convoy device, realize data communication by GSM, GPRS or CDMA communication module, and in existing distribution station monitor procedure, need monitor in the distribution station video in real time and the video information that monitors is sent to the Surveillance center that the entire city power distribution network is monitored by camera, Surveillance center can utilize the running status of these information analysis power distribution networks to operation monitoring, control and the management of entire city power distribution network and equipment thereof.As technique known, be to transmit in the mode of picture frame in the video information transmission course, when per second transmitted 24 frame pictures or the picture more than 24 frames, what human eye was seen just can think continuous video information.Suppose that the data volume of each frame picture is all about 100k, transmit 24 frame pictures p.s., then need p.s. data quantity transmitted just more than 2M, and GSM, GPRS or CDMA transmission bandwidth deficiency, transmission speed is low excessively, p.s., data quantity transmitted can't obtain more than the 2M, can not satisfy the requirement of transmission of video images by the transmission of above-mentioned communication mode realization data communication.
Certainly, it may occur to persons skilled in the art that and adopt 3G technology to realize transmission of video signals, the bandwidth of 3G is big, can be used for transmission video signal, yet the development along with technology, the sharpness of the vision signal that camera is taken is more and more higher, and the quantity of information that vision signal comprises is also increasing, transmits by network owing to intelligent management also will be accompanied by more electronic signal informational needs in addition.Therefore how to save Internet resources, the bigger data volume of transmission is the technical barrier that those skilled in the art face as much as possible in limited bandwidth range.
Summary of the invention
Technical matters to be solved by this invention be in the prior art distribution substation room monitoring system information transfer channel bandwidth effective information data volume that can transmit is had bigger restriction so that provide a kind of can be in band-limited data transmission channel, raising can be transmitted the distribution substation room monitoring system of the data volume of effective information.
For solving the problems of the technologies described above, the invention provides a kind of distribution substation room monitoring system, comprising:
Digital camera is used for the video pictures in the monitoring distribution station, has well-determined IP address;
The image difference extraction unit is built in the described digital camera, receives each two field picture of the video pictures that described camera head monitor arrives, analyzes the otherness of two continuous frames image in the setting-up time section, and the difference partial data of the image sets that there are differences of output; Transmission unit links to each other with described image difference extraction unit, receives the residing described setting-up time section initial point of image sets that there are differences, first two field picture of described digital camera output; Receive the difference partial data of the difference group image that there are differences of described image difference extraction unit output simultaneously; And with described first two field picture and the output of described difference partial data;
Graphics processing unit receives described first two field picture and described difference partial data that described transmission unit is exported, restores video image frame by frame according to first two field picture in the setting-up time section and described difference partial data;
Described image difference extraction unit comprises:
The picture portion module, be used for each two field picture is obtained M block according to identical partition method, M is natural number, each block is the picture element matrix that pixel is formed, brightness according to each pixel is disposed a parameter for each pixel, and all the pixel corresponding parameters in each block are formed the block array;
Image comparison module, ((corresponding block array is compared one by one among 1<q<Q) for all the block arrays among 1<q<Q) and (q-1) two field picture to select the q two field picture; If the m(M of q two field picture〉m〉1) m block array in individual block array and (q-1) two field picture is variant, then only exports the m block array of q two field picture; If all block arrays of q two field picture are all identical with all block arrays in (q-1) two field picture, output signal not then;
Described graphics processing unit is replaced m block counts in (q-1) two field picture with the m block array in the q two field picture on all block array bases of (q-1) two field picture, obtain all block arrays of q two field picture, reduces the q two field picture;
Monitoring system platform links to each other with described graphics processing unit, receives described graphics processing unit and sends each two field picture and demonstration continuously.
Further, described image comparison module selects (2n+1) the individual block array in q two field picture and (q-1) two field picture to compare, wherein 0≤n≤︱ M/2 ︱;
If the q two field picture is identical with (2n+1) individual block array in (q-1) two field picture and (2n+3) individual block array is inequality then (2n+2) individual block array is compared, otherwise no longer (2n+2) individual block array is compared.
Described transmission unit is the GPRS transmission system, adopts packet-switch technology, follows the IP data network protocol when the transmission data.
It further comprises temperature sensor, is used for the interior temperature value of monitoring distribution station in real time;
Described monitoring system platform receives data and the demonstration that described temperature sensor collects by described transmission unit;
Built-in first comparer of described monitoring system platform and temperature alarming threshold value;
Temperature value and described temperature alarming threshold value in the more described monitoring distribution of described first comparer station, described monitoring system platform sends warning message when the temperature value in the described monitoring distribution station is equal to or greater than described temperature alarming threshold value.
It further comprises humidity sensor, is used for the interior humidity value of monitoring distribution station in real time;
Described monitoring system platform receives data and the demonstration that described humidity sensor collects by described transmission unit;
Built-in second comparer of described monitoring system platform and humidity alarm threshold value;
Humidity value and described humidity alarm threshold value in the more described monitoring distribution of described second comparer station, described monitoring system platform sends warning message when the humidity value in the described monitoring distribution station is equal to or greater than described humidity alarm threshold value.
It further comprises CO and CO
2Concentration sensor is used for interior CO and the CO of monitoring distribution station in real time
2Concentration;
Described monitoring system platform receives described CO and CO by described transmission unit
2The data that concentration sensor collects also show;
Built-in the 3rd comparer of described monitoring system platform and CO and CO
2The concentration alarm threshold value;
CO and CO in the more described monitoring distribution of described the 3rd comparer station
2Concentration and described CO and CO
2The concentration alarm threshold value, CO and CO in described monitoring distribution station
2Concentration is equal to or greater than described CO and CO
2Described monitoring system platform sends warning message during the concentration alarm threshold value.
Described monitoring system platform sends warning message, sends on the portable terminal of appointment by described GPRS transmission unit.
Described setting-up time section is 1 second.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) distribution substation room monitoring system of the present invention, comprise the image difference extraction unit, receive each two field picture of the video pictures that described camera head monitor arrives, analyze the otherness of two two field pictures in the setting-up time section, and the difference partial data of the image sets that there are differences of output, because in the distribution station, the picture that digital camera monitors almost is static, therefore the time interval between two two field pictures is very little in the setting-up time section, so the data volume that the difference between setting-up time section two two field pictures comprises is very little, therefore in data transmission procedure, greatly reduced volume of transmitted data, and according to the image of first frame, in conjunction with the difference of two two field pictures in section sometime, video image can be restored frame by frame, how effective information can be in limited bandwidth, transmitted.
(2) distribution substation room monitoring system of the present invention, the image difference extraction unit is analyzed the otherness of the two continuous frames image in the setting-up time section and is exported the difference partial data, therefore according to the difference of first two field picture and follow-up two continuous frames image, can restore the image of each frame in the setting-up time section, make monitored results more accurate, video image after the reduction is littler at interval, and video is more smooth.
(3) distribution substation room monitoring system of the present invention, described image comparison module selects (2n+1) the individual block array in q two field picture and (q-1) two field picture to compare, 0≤n≤︱ M/2 ︱; If the q two field picture is identical with (2n+1) individual block array in (q-1) two field picture and (2n+3) individual block array is inequality then compares (2n+2) individual block array, otherwise no longer (2n+2) individual block array is compared.Can effectively reduce the data volume that compares like this, improve the efficient of computing.
(4) distribution substation room monitoring system of the present invention, the GPRS transmission unit adopts packet-switch technology, follows the IP data network protocol when the transmission data, can greatly improve the transfer rate of video pictures image.
(5) distribution substation room monitoring system of the present invention, can warning message be sent on the portable terminal of appointment by the form of numeric messaging, can notify the staff immediately, when appearance in the distribution station is unusual, can accomplish fast processing, avoid heavy economic losses.
(6) distribution substation room monitoring system of the present invention, selecting a second is the cycle, p.s. data quantity transmitted less than can data quantity transmitted in the per second of GPRS, realized the purpose of the more effective information of transmission in the effective bandwidth of GPRS effectively.
Description of drawings
Content of the present invention is easier clearly to be understood in order to make, and below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the embodiment of the invention 1 described distribution substation room monitoring system structured flowchart;
Fig. 2 is the embodiment of the invention 3 described distribution substation room monitoring system structured flowcharts.
Embodiment
Embodiment 1
The described distribution substation room monitoring system of present embodiment as shown in Figure 1, comprising: digital camera, be used for the video pictures in the monitoring distribution station, and have well-determined IP address; The image difference extraction unit is built in the described digital camera, receives each two field picture of the video pictures that described camera head monitor arrives, analyzes the otherness of two two field pictures in the setting-up time section, and the difference partial data of the image sets that there are differences of output; Transmission unit links to each other with described image difference extraction unit, receives the residing described setting-up time section initial point of image sets that there are differences, first two field picture of described digital camera output; Receive the difference partial data of the difference group image that there are differences of described image difference extraction unit output simultaneously; And with described first two field picture and the output of described difference partial data; In the present embodiment, preferred described transmission unit is the GPRS transmission system, and adopts packet-switch technology, follows the IP data network protocol when the transmission data; Graphics processing unit receives described first two field picture and described difference partial data that described transmission unit is exported, restores video image frame by frame according to first two field picture in the setting-up time section and described difference partial data; Monitoring system platform links to each other with described graphics processing unit, receives described graphics processing unit and sends each two field picture and demonstration continuously.As preferred embodiment, can select setting-up time is 1 second, and can analyze the otherness of two continuous frames image, and exports the difference partial data of the image sets that there are differences.
Because in the distribution station, the picture that digital camera monitors almost is static, therefore the data volume that the difference between two two field pictures comprises in the setting-up time section is very little, if we were 1 second in the preferred time interval, in the so short time, the difference of its two continuous frames picture can be littler.Therefore in data transmission procedure, greatly reduce volume of transmitted data, can in limited bandwidth, transmit how effective information.
Embodiment 2
Present embodiment is done following improvement on the basis of embodiment 1, described image difference extraction unit comprises: the picture portion module, be used for each two field picture is obtained M block according to identical partition method, M is natural number, each block is the picture element matrix that pixel is formed, brightness according to each pixel is disposed a parameter for each pixel, and all the pixel corresponding parameters in each block are formed the block array; Image comparison module, ((corresponding block array is compared one by one among 1<q<Q) for all the block arrays among 1<q<Q) and (q-1) two field picture to select the q two field picture; If the m(M of q two field picture〉m〉1) m block array in individual block array and (q-1) two field picture is variant, then only exports the m block array of q two field picture; If all block arrays of q two field picture are all identical with all block arrays in (q-1) two field picture, output signal not then; Described graphics processing unit is replaced m block array in (q-1) two field picture with the m block array in the q two field picture on all block array bases of (q-1) two field picture, obtain all block arrays of q two field picture, reduces the q two field picture.
To transmit 24 two field pictures p.s., the size of every two field picture is example for 100K, then the size of first two field picture is 100K, divide the block of every two field picture according to the resolution of described digital camera, the digital camera that with resolution is 1024x768 is example, then the row of selecting when dividing block and the ratio of row are 1024/768, suppose every two field picture is divided into 8 row, 6 row, then each two field picture can be divided into 48 blocks, therefore the size of each block is 100K/48, the size of each block has only 2k many, this shows that data volume also is very little if the difference of two continuous frames image is several blocks.Therefore greatly reduce the data volume of the effective information of transmission.
As preferred embodiment, described image comparison module selects (2n+1) the individual block array in q two field picture and (q-1) two field picture to compare, wherein 0≤n≤︱ M/2 ︱; If the q two field picture is identical with (2n+1) individual block array in (q-1) two field picture and (2n+3) individual block array is inequality then (2n+2) individual block array is compared, otherwise no longer (2n+2) individual block array is compared.Adopt above-mentioned comparative approach, can reduce operand greatly, be easy to expect, when the some blocks in the two continuous frames image changed, the block around this so greatly possible block also can change; Therefore if the q two field picture is identical with (2n+1) individual block array in (q-1) two field picture and (2n+3) individual block array is inequality then (2n+2) individual block array is compared, otherwise no longer (2n+2) individual block array is compared, be that high accuracy rate is arranged, and maximum can reduce by 50% operand.Be 1 at interval between the block that compares in the present embodiment, also can select other interval, it should be noted that the accuracy of the excessive easy influence detection of choosing at interval.
Embodiment 3
Present embodiment is on the basis of embodiment 1 or embodiment 2, and as shown in Figure 3, it further comprises temperature sensor, is used for the interior temperature value of monitoring distribution station in real time; Described monitoring system platform receives data and the demonstration that described temperature sensor collects by described GPRS transmission unit; Built-in first comparer of described monitoring system platform and temperature alarming threshold value; Temperature value and described temperature alarming threshold value in the more described monitoring distribution of described first comparer station, described monitoring system platform sends warning message when the temperature value in the described monitoring distribution station is equal to or greater than described temperature alarming threshold value.
Further, it comprises humidity sensor, is used for the interior humidity value of monitoring distribution station in real time; Described monitoring system platform receives data and the demonstration that described humidity sensor collects by described GPRS transmission unit; Built-in second comparer of described monitoring system platform and humidity alarm threshold value; Humidity value and described humidity alarm threshold value in the more described monitoring distribution of described second comparer station, described monitoring system platform sends warning message when the humidity value in the described monitoring distribution station is equal to or greater than described humidity alarm threshold value.
Further, it comprises CO and CO
2Concentration sensor is used for interior CO and the CO of monitoring distribution station in real time
2Concentration; Described monitoring system platform receives described CO and CO by described GPRS transmission unit
2The data that concentration sensor collects also show; Built-in the 3rd comparer of described monitoring system platform and CO and CO
2The concentration alarm threshold value; CO and CO in the more described monitoring distribution of described the 3rd comparer station
2Concentration and described CO and CO
2The concentration alarm threshold value is drawn together CO and CO in described monitoring distribution station
2Concentration is equal to or greater than described CO and CO
2Described monitoring system platform sends warning message during the concentration alarm threshold value.
Preferably, described monitoring system platform sends warning message, sends on the portable terminal of appointment by described GPRS transmission unit.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (8)
1. a distribution substation room monitoring system is characterized in that, comprising:
Digital camera is used for the video pictures in the monitoring distribution station, has well-determined IP address;
The image difference extraction unit is built in the described digital camera, receives each two field picture of the video pictures that described camera head monitor arrives, analyzes the otherness of two continuous frames image in the setting-up time section, and the difference partial data of the image sets that there are differences of output; Transmission unit links to each other with described image difference extraction unit, receives the residing described setting-up time section initial point of image sets that there are differences, first two field picture of described digital camera output; Receive the difference partial data of the difference group image that there are differences of described image difference extraction unit output simultaneously; And with described first two field picture and the output of described difference partial data;
Graphics processing unit receives described first two field picture and described difference partial data that described transmission unit is exported, restores video image frame by frame according to first two field picture in the setting-up time section and described difference partial data;
Described image difference extraction unit comprises:
The picture portion module, be used for each two field picture is obtained M block according to identical partition method, M is natural number, each block is the picture element matrix that pixel is formed, brightness according to each pixel is disposed a parameter for each pixel, and all the pixel corresponding parameters in each block are formed the block array;
Image comparison module, ((corresponding block array is compared one by one among 1<q<Q) for all the block arrays among 1<q<Q) and (q-1) two field picture to select the q two field picture; If the m(M of q two field picture〉m〉1) m block array in individual block array and (q-1) two field picture is variant, then only exports the m block array of q two field picture; If all block arrays of q two field picture are all identical with all block arrays in (q-1) two field picture, output signal not then;
Described graphics processing unit is replaced m block counts in (q-1) two field picture with the m block array in the q two field picture on all block array bases of (q-1) two field picture, obtain all block arrays of q two field picture, reduces the q two field picture;
Monitoring system platform links to each other with described graphics processing unit, receives described graphics processing unit and sends each two field picture and demonstration continuously.
2. distribution substation room monitoring system according to claim 1 is characterized in that:
Described image comparison module selects (2n+1) the individual block array in q two field picture and (q-1) two field picture to compare, wherein 0≤n≤︱ M/2 ︱;
If the q two field picture is identical with (2n+1) individual block array in (q-1) two field picture and (2n+3) individual block array is inequality then (2n+2) individual block array is compared, otherwise no longer (2n+2) individual block array is compared.
3. distribution substation room monitoring system according to claim 1 and 2 is characterized in that:
Described transmission unit is the GPRS transmission system, adopts packet-switch technology, follows the IP data network protocol when the transmission data.
4. distribution substation room monitoring system according to claim 3 is characterized in that:
It further comprises temperature sensor, is used for the interior temperature value of monitoring distribution station in real time;
Described monitoring system platform receives data and the demonstration that described temperature sensor collects by described transmission unit;
Built-in first comparer of described monitoring system platform and temperature alarming threshold value;
Temperature value and described temperature alarming threshold value in the more described monitoring distribution of described first comparer station, described monitoring system platform sends warning message when the temperature value in the described monitoring distribution station is equal to or greater than described temperature alarming threshold value.
5. distribution substation room monitoring system according to claim 4 is characterized in that:
It further comprises humidity sensor, is used for the interior humidity value of monitoring distribution station in real time;
Described monitoring system platform receives data and the demonstration that described humidity sensor collects by described transmission unit;
Built-in second comparer of described monitoring system platform and humidity alarm threshold value;
Humidity value and described humidity alarm threshold value in the more described monitoring distribution of described second comparer station, described monitoring system platform sends warning message when the humidity value in the described monitoring distribution station is equal to or greater than described humidity alarm threshold value.
6. distribution substation room monitoring system according to claim 5 is characterized in that:
It further comprises CO and CO
2Concentration sensor is used for interior CO and the CO of monitoring distribution station in real time
2Concentration;
Described monitoring system platform receives described CO and CO by described transmission unit
2The data that concentration sensor collects also show; Built-in the 3rd comparer of described monitoring system platform and CO and CO
2The concentration alarm threshold value;
CO and CO in the more described monitoring distribution of described the 3rd comparer station
2Concentration and described CO and CO
2The concentration alarm threshold value, CO and CO in described monitoring distribution station
2Concentration is equal to or greater than described CO and CO
2Described monitoring system platform sends warning message during the concentration alarm threshold value.
7. distribution substation room monitoring system according to claim 6 is characterized in that:
Described monitoring system platform sends warning message, sends on the portable terminal of appointment by described GPRS transmission unit.
8. distribution substation room monitoring system according to claim 7 is characterized in that:
Described setting-up time section is 1 second.
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CN201210288081.0A CN102830669B (en) | 2012-05-31 | 2012-08-14 | Power distribution station room monitoring system |
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CN201210576673.2A Division CN103217937B (en) | 2012-05-31 | 2012-08-14 | A kind of distribution substation room monitoring system |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN103217937A (en) * | 2012-05-31 | 2013-07-24 | 山东电力集团公司青岛供电公司 | Power distribution station house monitoring system |
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CN103135523A (en) | 2013-06-05 |
CN103135523B (en) | 2015-04-22 |
CN103217937A (en) | 2013-07-24 |
CN103217937B (en) | 2015-10-21 |
CN103135524A (en) | 2013-06-05 |
CN103135524B (en) | 2014-07-23 |
CN102830669A (en) | 2012-12-19 |
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