CN102164272A - Method for reducing cloud deck control delay in network video monitoring platform - Google Patents
Method for reducing cloud deck control delay in network video monitoring platform Download PDFInfo
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- CN102164272A CN102164272A CN2011100870203A CN201110087020A CN102164272A CN 102164272 A CN102164272 A CN 102164272A CN 2011100870203 A CN2011100870203 A CN 2011100870203A CN 201110087020 A CN201110087020 A CN 201110087020A CN 102164272 A CN102164272 A CN 102164272A
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Abstract
The invention relates to a method for reducing cloud deck control delay in a network video monitoring platform, and the method is technically characterized by comprising the following steps: (1) starting the network video monitoring platform, connecting the network video monitoring platform to a front-end device, and starting the shift detection function of the front-end device; (2) performing shift detection on each video previewing channel by the network video monitoring platform, thereby acquiring the motion state of the previewing video of each channel in real time; and (3) dynamically distributing the maximum code rate of each channel by the network video monitoring platform according to the motion state of the previewing video of each channel. The method provided by the invention has the advantages that the design is reasonable and the cloud deck control delay in the network video monitoring platform is reduced without improving the conditions of the current network and other hardware resources through utilizing the network video monitoring platform to acquire the motion state of the previewing video of each channel at real time, dynamically distribute the maximum code rate of each channel according to the priority of the motion state of the previewing video of each channel and dynamically manage the network resource.
Description
Technical field
The invention belongs to field of video monitoring, especially a kind of method that in network video monitoring platform, reduces the cradle head control time-delay.
Background technology
Network video monitoring platform typically refers to the IP surveillance platform that is used for application-specific in security monitoring and the remote monitor supervision area, and it makes the user realize recording of video monitoring and video image by IP network.The difference of network video monitoring platform and analog video monitor supervision platform is that network video monitoring platform adopts IP network to carry out video and the various information transmission relevant with monitoring, rather than adopts point-to-point analog video cable to transmit.Network video monitoring platform can be with the video information digitlization, and transmit by wired or wireless IP network, possess the place that network is connected thereby make functions such as real-time monitoring and video recording can expand to all, also can realize seamless integrated functionality with other safety-protection systems easily simultaneously.
The bandwidth usage of network video monitoring platform reality depends on compression level, image size and the frame rate of every road video channel image.In the high-definition network video monitor supervision platform,, therefore, can cause the cradle head control time-delay because data volume is big and decoding is subjected to factors such as hardware resource limitations.Existing network video monitoring platform is every passage mean allocation delay time in resource allocation, if under the situation that does not change existing network and other hardware resources, then can't reduce the cradle head control time-delay.If reduce the cradle head control time-delay, just needing the user is that video data is opened up special-purpose network or divided by switch and router network bandwidth resources, for Video Applications keeps special-purpose bandwidth resources, can cause increasing substantially of resource and cost like this.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of method that reduces the cradle head control time-delay in network video monitoring platform is provided, this method can not change existing network infrastructure, not increase under the situation of new investment and reduce the cradle head control time-delay.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of method that reduces the cradle head control time-delay in network video monitoring platform may further comprise the steps:
(1) starts network video monitoring platform and connect, open the mobile detection function of headend equipment simultaneously with headend equipment;
(2) network video monitoring platform carries out mobile detection to each video preview passage, obtains each passage preview video motion state in real time;
(3) network based each the passage preview video motion state of network video monitoring platform is carried out dynamic assignment to each passage maximal rate.
And, described startup network video monitoring platform comprise to each passage preview video motion state, passage preview video motion state priority and passage maximal rate carry out initial value setting and start-up time trigger.
And the initial value of described passage preview video motion state value is made as 0, and the initial value of described passage preview video motion state priority is made as 1, and the initial value of described passage maximal rate is made as minimum limit value.
And, the concrete grammar of described step (2) is: whether each video preview passage of headend equipment detecting real-time image takes place is moved, when detecting video preview passage generation image when moving, send mobile detection alert to network video monitoring platform, network video monitoring platform adds 1 with this passage preview video motion state value after receiving and reporting to the police.
And, the corresponding relation of described passage preview video motion state priority and passage maximal rate is an one-to-one relationship, the minimum of the minimum limit value respective channel of maximal rate preview video motion state priority, the peak of maximal rate threshold limit value respective channel preview video motion state priority.
And, the concrete grammar of described step (3) is: at first determine passage preview video motion state priority, according to the corresponding relation of passage preview video motion state priority and passage maximal rate, the passage maximal rate of each video channel in the headend equipment is set respectively then.
And, the method of described definite passage preview video motion state priority is: the Time Triggered device of network video monitoring platform triggers after the time through a trigger interval, this passage preview video motion state value compared with this passage preview video motion state value and when last time, the Time Triggered device triggered, if equate, then video channel motion state value is made as initial value 0 again, passage preview video motion state priority is made as initial value 1 again, is provided with simultaneously that this passage maximal rate is minimum limit value in the headend equipment; If unequal, then passage preview video motion state priority is added 1.
And, described step (3) also comprises when needs carry out the cradle head control operation to certain video preview passage, directly this passage preview video motion state priority is made as the superlative degree manually, the maximal rate that this passage preview video is set simultaneously is a maximum.
Advantage of the present invention and good effect are:
The present invention is reasonable in design, network video monitoring platform carries out mobile detection to each video preview passage, obtain each passage preview video motion state in real time, passage preview video motion state priority is set, and according to the height of passage preview video motion state priority the dynamic assignment of carrying out to video preview passage maximal rate, utilize the maximal rate of dynamic assignment preview video passage that Internet resources are carried out the dynamic assignment management, realized under the condition of not transforming existing network and other hardware resources, having reduced and in network video monitoring platform, carried out the cradle head control time-delay.
Description of drawings
Fig. 1 is a handling process schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is further described:
A kind of method that in network video monitoring platform, reduces the cradle head control time-delay, as shown in Figure 1, left side solid box is represented the processing procedure of network video monitoring platform, the processing procedure of the headend equipment that the right solid box representative is connected with network video monitoring platform, network video monitoring platform is by the mobile detection function of headend equipment realization to video channel, obtain each passage preview video motion state by real-time mobile detection alarm and Time Triggered device, passage preview video motion state priority is set, and according to the height of the passage preview video motion state priority dynamic assignment of carrying out to video preview passage maximal rate.
Below content of the present invention is elaborated, this method may further comprise the steps:
Step 1: start network video monitoring platform and connect, open the mobile detection function of headend equipment simultaneously with headend equipment.
In this step, network video monitoring platform starts the back and links together by network with headend equipment and carries out interaction process, to each passage preview video motion state, passage preview video motion state priority and passage maximal rate carry out initial value setting and start-up time trigger and the mobile detection function of opening headend equipment.
Passage preview video motion state can be represented with numeral, for example, passage preview video motion state value is digital 0 o'clock, it is static representing motion state, when the video preview channel image is moved, this passage preview video motion state value increases, and along with the video preview channel image continues to be moved, this passage preview video motion state value progressively increases.Usually, the initial value of each passage preview video motion state all is made as 0.
Passage preview video motion state priority can be provided with in the passage preview video motion state that different time showed according to each passage, and when motion state when being static, this video preview passage priority is minimum, when priority is that 1 expression is minimum.Usually, the initial value of passage preview video motion state priority is made as 1.
The passage maximal rate is provided with respective value respectively according to passage preview video motion state priority, there are one-to-one relationship in passage maximal rate and passage preview video motion state priority, the minimum of the minimum limit value respective channel of maximal rate preview video motion state priority, the peak of maximal rate threshold limit value respective channel preview video motion state priority.Usually, the initial value of each passage maximal rate is made as minimum limit value.
The triggered time of Time Triggered device was made as 1 minute at interval, and this time interval can be set to other values as required.
Step 2: network video monitoring platform carries out mobile detection to each video preview passage, obtains each passage preview video motion state in real time.
In this step, whether each video preview passage of headend equipment detecting real-time image takes place is moved, when detecting video preview passage generation image when moving, send mobile detection alert to network video monitoring platform, network video monitoring platform adds 1 with this passage preview video motion state value after receiving and reporting to the police.
Step 3: network based each the passage preview video motion state of network video monitoring platform is carried out dynamic assignment to each passage maximal rate.
In this step, at first determine passage preview video motion state priority, its method is: the Time Triggered device of network video monitoring platform triggers (being 1 minute in the present embodiment) through a trigger interval after the time, this passage preview video motion state value compared with this passage preview video motion state value and when last time, the Time Triggered device triggered, if equate, illustrate that this passage preview video motion state is an inactive state, then video channel motion state value is made as initial value 0 again, passage preview video motion state priority is made as initial value 1 again, is provided with simultaneously that this passage maximal rate is minimum limit value in the headend equipment; If unequal, illustrate that this passage preview video motion state is a motion state, then passage preview video motion state priority is added 1 (if this moment, passage preview video motion state priority reached maximum, then keep priority constant).After having determined passage preview video motion state priority, then according to the corresponding relation of passage preview video motion state priority and passage maximal rate, the passage maximal rate of each video channel in the headend equipment is set respectively, because there are one-to-one relationship in passage maximal rate and passage preview video motion state priority, so the passage maximal rate is provided with respective value respectively according to passage preview video motion state priority, thereby realize dynamic assignment to the passage maximal rate, hardware resource is according to priority carried out dynamic assignment, reduced and in network video monitoring platform, carried out the cradle head control time-delay.
In addition, when certain video preview passage being carried out the cradle head control operation, can directly this passage preview video motion state priority be made as the superlative degree manually, the maximal rate that this passage preview video is set simultaneously is a maximum, thereby apace The Cloud Terrace is controlled.
It is emphasized that; embodiment of the present invention is illustrative; rather than it is determinate; therefore the present invention is not limited to the embodiment described in the embodiment; every other execution modes that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
Claims (8)
1. one kind is reduced the method that cradle head control is delayed time in network video monitoring platform, it is characterized in that: may further comprise the steps:
(1) starts network video monitoring platform and connect, open the mobile detection function of headend equipment simultaneously with headend equipment;
(2) network video monitoring platform carries out mobile detection to each video preview passage, obtains each passage preview video motion state in real time;
(3) network based each the passage preview video motion state of network video monitoring platform is carried out dynamic assignment to each passage maximal rate.
2. the method that reduces the cradle head control time-delay in network video monitoring platform according to claim 1 is characterized in that: described startup network video monitoring platform comprise to each passage preview video motion state, passage preview video motion state priority and passage maximal rate carry out initial value setting and start-up time trigger.
3. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 2, it is characterized in that: the initial value of described passage preview video motion state value is made as 0, the initial value of described passage preview video motion state priority is made as 1, and the initial value of described passage maximal rate is made as minimum limit value.
4. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 1, it is characterized in that: the concrete grammar of described step (2) is: whether each video preview passage of headend equipment detecting real-time image takes place is moved, when detecting video preview passage generation image when moving, send mobile detection alert to network video monitoring platform, network video monitoring platform adds 1 with this passage preview video motion state value after receiving and reporting to the police.
5. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 1, it is characterized in that: the corresponding relation of described passage preview video motion state priority and passage maximal rate is an one-to-one relationship, the minimum of the minimum limit value respective channel of maximal rate preview video motion state priority, the peak of maximal rate threshold limit value respective channel preview video motion state priority.
6. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 1, it is characterized in that: the concrete grammar of described step (3) is: at first determine passage preview video motion state priority, according to the corresponding relation of passage preview video motion state priority and passage maximal rate, the passage maximal rate of each video channel in the headend equipment is set respectively then.
7. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 6, it is characterized in that: the method for described definite passage preview video motion state priority is: the Time Triggered device of network video monitoring platform triggers after the time through a trigger interval, this passage preview video motion state value compared with this passage preview video motion state value and when last time, the Time Triggered device triggered, if equate, then video channel motion state value is made as initial value 0 again, passage preview video motion state priority is made as initial value 1 again, is provided with simultaneously that this passage maximal rate is minimum limit value in the headend equipment; If unequal, then passage preview video motion state priority is added 1.
8. the method that in network video monitoring platform, reduces the cradle head control time-delay according to claim 1, it is characterized in that: described step (3) also comprises when needs carry out the cradle head control operation to certain video preview passage, directly this passage preview video motion state priority is made as the superlative degree manually, the maximal rate that this passage preview video is set simultaneously is a maximum.
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| CN2011100870203A CN102164272A (en) | 2011-04-07 | 2011-04-07 | Method for reducing cloud deck control delay in network video monitoring platform |
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| CN105137839A (en) * | 2015-08-18 | 2015-12-09 | 银江股份有限公司 | Cradle head control method and system based on memory database |
| CN113395460A (en) * | 2020-03-11 | 2021-09-14 | 浙江宇视科技有限公司 | Video decoding method, device and equipment and readable storage medium |
| CN114401404A (en) * | 2022-03-24 | 2022-04-26 | 深圳比特微电子科技有限公司 | VPU (virtual private Unit) coding strategy implementation method and device |
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Application publication date: 20110824 |