CN101345862B - Image transmission method for real-time grasp shoot of network monitoring system - Google Patents
Image transmission method for real-time grasp shoot of network monitoring system Download PDFInfo
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- CN101345862B CN101345862B CN 200810142512 CN200810142512A CN101345862B CN 101345862 B CN101345862 B CN 101345862B CN 200810142512 CN200810142512 CN 200810142512 CN 200810142512 A CN200810142512 A CN 200810142512A CN 101345862 B CN101345862 B CN 101345862B
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Abstract
A transmission method of real time capturing images in a network monitoring system, resolves the compressing standard effective regulation problem when the monitoring system transmits images, adopting the technical scheme that: the computer at background monitoring terminal is connected to the foreground video camera through network, and regulates the operation mode of a network video camera according to the monitoring instance; when the network video camera normally works, the network video camera acquires images, compresses the multiple images and transmits them to the computer at the background monitoring terminal; when the network video camera alarms, the computer at the background monitoring terminal starts up a network video camera alarming operation mode, the picked-up images are directly transmitted to the computer at background control terminal through network, and finally stored in the center register for standby. The invention specifies the conversion of network video camera operation mode by using the background monitoring terminal to set up a specific monitor program in advance, to realize the effective regulation of the background monitoring system to the network video camera compressing standard, thereby saving network resource and improving the transmission efficiency of useful image information.
Description
Technical field
The present invention relates to the image transfer method of the web camera of video frequency graphic monitoring, particularly a kind of real-time grasp shoot of network monitoring system.
Background technology
In the prior art, web camera more and more is widely used in warehouse, office etc. needs the monitoring place, in the prior art, when alert event takes place when, carry out the candid photograph of image by the monitoring rear end, web camera is transferred to the image of decoding and obtain in the rear end after picture is compressed, encodes.In order to realize the Network Transmission of low bandwidth, need the compression standard that web camera is provided with the high compression ratio be come image is carried out compressed encoding, but under the emergency alarm situation, image fault after its compression is bigger, when if the low compression ratio rate of change web camera is transmitted with the image of realizing high definition, need to take massive band width again, background monitoring system is to effective adjustment of web camera compression standard when how to realize emergent alarm, reach web camera and under normal mode of operation, carry out the transmission of high compression low bandwidth, under the warning mode of operation, hang down the compression high bandwidth transmission, Internet resources have effectively been saved, improve useful image information efficiency of transmission, become the needs of existing network surveillance.
Summary of the invention
For solving deficiency of the prior art and shortcoming, the present invention proposes a kind of image transfer method of real-time grasp shoot of network monitoring system, described network monitoring system comprises online foreground web camera, the computer control system of background monitoring end, and the signal transmission network between the computer of web camera and monitoring client connects to form, at matching used warning circuit, under the support of the webserver, the foreground web camera receives the computer control system program command from the background monitoring end, to monitor, the multiple image of recording by data compression through Network Transmission in the background computer supervisory control system, it is characterized in that: described a kind of method that improves the online efficiency of transmission of network monitoring system is further comprising the steps of realization:
1. the monitoring image data of standard and special monitoring programme are set in the computer control system of background monitoring end; Be stored in the SAM Stand Alone Memory that arranges in the computer of background monitoring end; Two kinds of mode of operations are set: normal mode of operation and warning mode of operation in the web camera of foreground; In video normal monitoring situation; By web camera gather image and multiple image compressed, encodes and by Internet Transmission in the computer of background monitoring end; Image is carried out Real Time Monitoring
2. the network monitoring program of background monitoring end is compared to the monitoring image data of the standard that is provided with in the image of real-time collection and the memory, when difference appears in comparison result, the computer starting warning circuit of background monitoring end, send the special monitoring program instruction that has sign simultaneously, send in the web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, the image single frames captured carry out after the Static Compression passing through in the computer that network directly is transferred to background control end one by one, be stored in the computer control system distributor of background monitoring end standby at last
3. after capturing the image end of transmission, background monitoring system control foreground web camera working mode change is a normal mode of operation.
In background monitoring end computer control system, set in advance special monitoring program, stipulated conversion instruction to the mode of operation of web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, start the web camera image collecting device, carry out the continuously shot images photo, realize the candid photograph of image single frames, this group image photo is carried out the still image compression through digital signal compressor circuit, and by Network Transmission in the computer of background control end, be stored in the distributor standby at last.The warning mode of operation that is provided with in the wherein said web camera is with the still image compression standard, compresses processing such as the JPEG compression standard to capturing image.Described in normal mode of operation be with dynamic image compression standard, compress processing such as the MPEG compression standard to capturing image.
The invention has the beneficial effects as follows, set in advance special monitoring program by the background monitoring end, stipulated conversion to the mode of operation of web camera, background monitoring system is to effective adjustment of web camera compression standard when realizing emergent alarm, reach web camera and under normal mode of operation, carry out the transmission of high compression low bandwidth, under the warning mode of operation, hang down the compression high bandwidth transmission, make web camera under the prerequisite that is making full use of the network bandwidth, realized the function that real-time video monitoring and high definition are captured simultaneously, effectively save Internet resources, improved useful image information efficiency of transmission.
Description of drawings
Accompanying drawing 1 is a network system composition diagram of the present invention
Embodiment
Referring to accompanying drawing 1, a kind of image transfer method of real-time grasp shoot of network monitoring system is realized according to the following steps: monitoring image data that 1. set up standard in the computer control system of background monitoring end and special monitoring program, be stored in the Stand Alone Memory that is provided with in the computer of background monitoring end, two kinds of mode of operations are set: normal mode of operation and warning mode of operation in the web camera of foreground, under video normal monitoring situation, compress by the web camera images acquired and with multiple image, the packing and by Network Transmission in the computer of background monitoring end, image is monitored in real time
2. the network monitoring program of background monitoring end is compared to the monitoring image data of the standard that is provided with in the image of real-time collection and the memory, when difference appears in comparison result, the computer starting warning circuit of background monitoring end, send the special monitoring program instruction that has sign simultaneously, send in the web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, the image single frames captured carry out after the Static Compression passing through in the computer that network directly is transferred to background control end one by one, be stored in the computer control system distributor of background monitoring end standby at last
3. after capturing the image end of transmission, background monitoring system control foreground web camera working mode change is a normal mode of operation.
In background monitoring end computer control system, set in advance special monitoring program, stipulated conversion instruction to the mode of operation of web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, start the web camera image collecting device, carry out the continuously shot images photo, realize the candid photograph of image single frames, this group image photo is carried out the still image compression through the digital signal compressor circuit, and by Network Transmission in the computer of background control end, be stored in the distributor standby at last.The warning mode of operation that is provided with in the wherein said web camera is with the still image compression standard, compress processing such as the JPEG compression standard to capturing image, like this image is taked the lower compression standard of compression ratio, can obtain pictorial information clearly, it has higher occupancy to the network bandwidth, but taking of high bandwidth can stop after the high definition image end of transmission like this, send regulating command by background monitoring end computer system, the mode of operation of web cam is adjusted into normal mode of operation, wherein be with dynamic image compression standard under the normal mode of operation, compress processing such as the MPEG compression standard to capturing image, the compression ratio height of compression such as the relative JPEG of this compression standard standard, adopt this compress mode to obtain the less image data information of visual capacity, thereby realized the operation of visual low bandwidth transmission.
Of the present invention by setting in advance special monitoring program in the background monitoring end computer control system, stipulated conversion to the mode of operation of web camera, background monitoring system is to effective adjustment of web camera compression standard when realizing emergent alarm, effectively save Internet resources, improved useful image information efficiency of transmission.
Claims (4)
1. the image transfer method of a real-time grasp shoot of network monitoring system, described network monitoring system comprises online foreground web camera, the computer control system of background monitoring end, and the signal transmission network between the computer of web camera and monitoring client connects to form, at matching used warning circuit, under the support of the webserver, the foreground web camera receives the computer control system program command from the background monitoring end, to monitor, the image of recording by data compression through Network Transmission in the background computer supervisory control system, it is characterized in that: described a kind of method that improves the online efficiency of transmission of network monitoring system is further comprising the steps of realization:
1. the monitoring image data of standard and special monitoring programme are set in the computer control system of background monitoring end; Be stored in the SAM Stand Alone Memory that arranges in the computer of background monitoring end; Two kinds of mode of operations are set: normal mode of operation and warning mode of operation in the web camera of foreground; In normally monitoring situation of video; By web camera gather image and image compressed, encodes and by Internet Transmission in the computer of background monitoring end; Image is carried out Real Time Monitoring
2. the network monitoring program of background monitoring end is compared to the monitoring image data of the standard that is provided with in the image of real-time collection and the memory, when difference appears in comparison result, the computer starting warning circuit of background monitoring end, send the special monitoring program instruction that has sign simultaneously, send in the web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, the image single frames captured carry out after the Static Compression passing through in the computer that network directly is transferred to background control end one by one, be stored in the computer control system distributor of background monitoring end standby at last
3. after capturing the image end of transmission, background monitoring system control foreground web camera working mode change is a normal mode of operation.
2. the image transfer method of a kind of real-time grasp shoot of network monitoring system according to claim 1, it is characterized in that: describedly in background monitoring end computer control system, set in advance special monitoring program, stipulated conversion instruction to the mode of operation of web camera, web camera CPU control chip receives this program command, analyze sign and response command request, with the web camera working mode change is the warning mode of operation, start the web camera image collecting device, carry out the continuously shot images photo, realize the candid photograph of image single frames, this group image photo is carried out the still image compression through the digital signal compressor circuit, and by Network Transmission in the computer of background control end, be stored in the distributor standby at last.
3. the image transfer method of a kind of real-time grasp shoot of network monitoring system according to claim 1, it is characterized in that: the warning mode of operation that is provided with in the web camera of described foreground is with the still image compression standard, compresses processing such as the JPEG compression standard to capturing image.
4. the image transfer method of a kind of real-time grasp shoot of network monitoring system according to claim 1, it is characterized in that: described normal mode of operation is with dynamic image compression standard, compresses processing such as the MPEG compression standard to capturing image.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810142512 CN101345862B (en) | 2008-07-25 | 2008-07-25 | Image transmission method for real-time grasp shoot of network monitoring system |
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| CN 200810142512 CN101345862B (en) | 2008-07-25 | 2008-07-25 | Image transmission method for real-time grasp shoot of network monitoring system |
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| CN101345862B true CN101345862B (en) | 2010-06-09 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620673A (en) * | 2012-03-16 | 2012-08-01 | 同济大学 | Tunnel deformation online monitoring system based on image analysis and application of system |
| CN102984509A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Four-band remote video monitoring system and data transmission method thereof |
| TWM453210U (en) * | 2013-01-02 | 2013-05-11 | Taiwan Secom Co Ltd | Monitoring system and photographic device for remote backup |
| CN103338351A (en) * | 2013-06-05 | 2013-10-02 | 深圳市宏电技术股份有限公司 | A method, an apparatus, and a system for monitoring video data uploading through utilizing a wireless network |
| CN104732710A (en) * | 2013-12-24 | 2015-06-24 | 贵州久联民爆器材发展股份有限公司 | Method and device for automatically monitoring on-the-job state of automatic detonator filling production line personnel |
| CN104469175A (en) * | 2014-02-25 | 2015-03-25 | 宁波蜂鸟光电科技有限公司 | Novel vidicon system based on LED light-compensating lamp |
| CN104093006A (en) * | 2014-07-29 | 2014-10-08 | 苏州华兴源创电子科技有限公司 | System and method for carrying out remote image capturing in double-current mode |
| CN111405238B (en) * | 2019-12-16 | 2023-04-18 | 杭州海康威视系统技术有限公司 | Transmission method, device and system for snap pictures, camera and storage equipment |
| CN114640853B (en) * | 2022-05-18 | 2022-07-29 | 滨州市人防工程与指挥保障中心 | Unmanned aerial vehicle image processing system that cruises |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1440005A (en) * | 2002-12-30 | 2003-09-03 | 北京市振隆科技发展公司 | Electronic V.F. network police monitoring systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440005A (en) * | 2002-12-30 | 2003-09-03 | 北京市振隆科技发展公司 | Electronic V.F. network police monitoring systems |
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