CN103888715A - Video-monitoring uniform control method and system based on multiple types of sensors - Google Patents
Video-monitoring uniform control method and system based on multiple types of sensors Download PDFInfo
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Abstract
The invention provides a video-monitoring uniform control method and system based on multiple types of sensors. The method includes: step1: a sensing layer of the video-monitoring system connects with the multiple types of sensors in a classified manner through a plurality of interfaces; step2: a transmission layer of the video monitoring system converts the plurality of interfaces of the multiple types of sensors so that video information acquired by the multiple types of sensors is converted into uniform digital signals; and step3: a service layer of the video monitoring system performs digitalized processing on the digital signals so as to unify the digital signals into uniform video information. The video-monitoring uniform control method and system based on the multiple types of sensors are capable of integrating multiple types of video sensors, realizing uniform control, and completing uniform application, uniform display, uniform adjustment and control, and uniform storage of the multiple types of video sensors under a single platform.
Description
Technical field
The present invention relates to field of video monitoring, relate in particular to a kind of video monitoring unified control method and system based on sensor.
Background technology
Sensing technology is called as three large pillars of information technology together with the communication technology with computer technology.From bionics viewpoint, if computer is regarded as to " brain " of processing and identifying information, communication system is regarded as to " nervous system " of transmission of information, transducer is exactly " sense organ " so.
Along with the continuous expansion of field of video applications, and the deep development of video technique, at present, video sensor is just presenting diversified trend.Press acquisition mode classification, can be divided into: analog video transducer, digital video sensor, digital coding video sensor etc.By application classification, can be divided into again: monitoring video sensor, industrial video transducer, medical video sensor.
At present, problem of user's ubiquity of various functional areas, the video monitoring system of building for different times can not be compatible, causes having the even above video monitoring system of two covers of two covers in a Control Room, makes troubles to user's operation.And have minority producer to integrate supervisory control system, owing to there is no unified standard, standard, cause the system architecture after integrating multifarious, function, performance and the efficiency of system is fully assessment not, causes safety in operation, stability, efficiency, the function composing of new system all can not meet user's application requirements.
Therefore, be badly in need of setting up a kind of integrated multiclass video sensor and realize the unified Solution Architecture of controlling, completing the unified application of multiclass video sensor under single platform.
Summary of the invention
Invention of the present invention is in order to realize integrated and unified control multiclass video sensor, and completes unified application, unified demonstration, unified regulation and control, the unified storage of multiclass video sensor under single platform.
For achieving the above object, the invention provides a kind of video monitoring unified control method based on sensor, the method comprises:
Step 1, the sensing layer of described video monitoring system to described sensor by the access of classifying of multiple interfaces;
Step 2, the transport layer of described video monitoring system is changed multiple interfaces of described sensor, thereby the video information of described sensor collection is transformed into unified digital signal;
Step 3, the service layer of described video monitoring system carries out digitized processing to described digital signal, and normalizing becomes unified video information.
Further, the switch process of described step 2 comprises:
Analog-to-digital conversion step, gathers the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
Interface conversion step, is unified RJ-45 interface by described multiple interface conversion, and by the data packing to non-ip signals, IP stack encapsulation, is transformed into the digital signal of unified information form, and this digital signal can be identified by RJ-45 interface.
Further, described step 3 comprises:
Step 31, carries out frequency domain conversion, quantification and entropy coding to described digital signal and processes, and completes digital signal encoding, obtains digital video bit stream;
Step 32, carries out coded format change to described digital video bit stream by transcoding algorithm, proofreaies and correct as unified digital video bit stream.
Transcoding algorithm in described step 32 is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
Described step 3 also comprises: the unique identification that described unified video information is carried out to information adds, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.
For achieving the above object, the present invention also provides a kind of video monitoring unified control system based on sensor, and this system comprises:
Classification access module, the sensing layer of described video monitoring system to described sensor by the access of classifying of multiple interfaces;
Modular converter, changes multiple interfaces of described sensor by the transport layer of described video monitoring system, thereby the video information of described sensor collection is transformed into unified digital signal;
Process unified module, by the service layer of described video monitoring system, described digital signal is carried out to digitized processing, normalizing becomes unified video information.
Further, described modular converter comprises:
Analog-to-digital conversion module, for gathering the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
Interface modular converter, for being unified RJ-45 interface by described multiple interface conversion, and by the data packing to non-ip signals, IP stack encapsulation, is transformed into the digital signal of unified information form, and this digital signal can be identified by RJ-45 interface.
Further, described processing is unified module and is comprised:
Coding processing module, carries out frequency domain conversion, quantification and entropy coding to described digital signal and processes, and completes digital signal encoding, obtains digital video bit stream;
Coding correction module, carries out coded format change to described digital video bit stream by transcoding algorithm, proofreaies and correct as unified digital video bit stream.
Transcoding algorithm in described coding correction module is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
Described processing is unified module and is also comprised:
Mark is added module, adds for the unique identification that described unified video information is carried out to information, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.
Beneficial functional of the present invention is: solved ubiquitous compatibling problem in supervisory control system at present.General situation is at present, and each service unit has all been set up the supervisory control system of self, and building time service unit great majority early adopt the mode of analog video transducer configuration DVR to apply.More and more widely under situation, for the protection to original investment, often need newly-built Digital Video System and original analogue system completely compatible in digital video technology application, and can accomplish unifiedly to show, unified regulation and control, unified storage.
The classification access of the present invention to front end sensors, by unified service mechanism, by the unified access of dissimilar transducer digital processing platform service layer, unified digitized processing is done to different level signals by service layer, makes different digitized signal normalizings for unified discernible video information.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the video monitoring unified control method flow chart based on sensor of the present invention;
Fig. 2 is the video monitoring unified control system schematic diagram based on sensor of the present invention.
Embodiment
Invention is devoted to solve ubiquitous compatibling problem in supervisory control system at present.General situation is at present, and each service unit has all been set up the supervisory control system of self, and building time service unit great majority early adopt the mode of analog video transducer configuration DVR to apply.More and more widely under situation, for the protection to original investment, often need newly-built Digital Video System and original analogue system completely compatible in digital video technology application, and can accomplish unifiedly to show, unified regulation and control, unified storage.
The classification access of this programme to front end sensors, by unified service mechanism, by the unified access of dissimilar transducer digital processing platform service layer, unified digitized processing is done to different level signals by service layer, makes different digitized signal normalizings for unified discernible video information.Do not stipulate type, standard, the agreement of transducer, but propose a kind of standard handovers flow process, the information after normal process, can be identified, apply by all manufacturers.By technology evaluation, the fail safe to this flow path switch, stability, efficiency are fully assessed, and reach service application person's actual operation requirements.
Fig. 1 is the video monitoring unified control method flow chart based on sensor of the present invention, and as shown in Figure 1, the method comprises:
Step 1, the sensing layer of described video monitoring system to described sensor by the access of classifying of multiple interfaces;
Step 2, the transport layer of described video monitoring system is changed multiple interfaces of described sensor, thereby the video information of described sensor collection is transformed into unified digital signal;
Step 3, the service layer of described video monitoring system carries out digitized processing to described digital signal, and normalizing becomes unified video information.
Further, the switch process of described step 2 comprises:
Analog-to-digital conversion step, gathers the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
Interface conversion step, is unified RJ-45 interface by described multiple interface conversion, and by the data packing to non-ip signals, IP stack encapsulation, is transformed into the digital signal of unified information form, and this digital signal can be identified by RJ-45 interface.
The transmission information standard of dissimilar front end sensors, interface, coded system is all different.Unified service mechanism refer to by the interface of dissimilar front end sensors change, signaling mode unifies, and do not carry out the change of coded system.
This operation after conversion, adopts a kind of information type to transmit to service platform all front end sensors.
Further, described step 3 comprises:
Step 31, carries out frequency domain conversion, quantification and entropy coding to described digital signal and processes, and completes digital signal encoding, obtains digital video bit stream.Specifically the raw video signal of the form such as RGB or YUV to IP network transmission carries out unified digital video coding operation, coded system can select general standard coding format to carry out, data flow is decomposed by the mode of macro block, carry out frequency domain conversion, quantification and entropy coding take macro block as unit, complete the Unified coding work of information;
Step 32, carries out coded format change to described digital video bit stream by transcoding algorithm, proofreaies and correct as unified digital video bit stream.Specifically, for the digital video bit stream that has carried out coding, platform is changed the form of having encoded by transcoding algorithm, proofreaies and correct as the accessible digital video bit stream of unified platform.Transcoding algorithm, analyze coding head and coding body information in video code flow, the mode of source code and object coding is close, adopt the way of data block migration by type of coding Direct Transform, the concrete way of data block migration is: different mobile vectors is demarcated and converted identical all directions to demarcation mode, different macroblock size is converted to 4*4 size macro block, frame difference is converted to 2 frames; Mode difference is larger, adopts the mode of separating decoding post-encoding to change.
This operation completes unified compression, verification, the transmission operation of platform to all digital informations.
Transcoding algorithm in described step 32 is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
Described step 3 also comprises: the unique identification that described unified video information is carried out to information adds, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.Be the discernible information of the whole network by the digital information unification of all platforms inside.This all kinds of processing for video information that are operating as platform lay the foundation, and the complexity of platform, can implement difficulty and will greatly reduce.
Fig. 2 is the video monitoring unified control system schematic diagram based on sensor of the present invention.As shown in Figure 2, this system comprises:
Process unified module 300, by the service layer of described video monitoring system, described digital signal is carried out to digitized processing, normalizing becomes unified video information.
Further, described modular converter 200 comprises:
Analog-to-digital conversion module 210, for gathering the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
The transmission information standard of dissimilar front end sensors, interface, coded system is all different.Unified service mechanism refer to by the interface of dissimilar front end sensors change, signaling mode unifies, and do not carry out the change of coded system.
This operation after conversion, adopts a kind of information type to transmit to service platform all front end sensors.
Further, described processing is unified module 300 and is comprised:
Specifically the raw video signal of the form such as RGB or YUV to IP network transmission carries out unified digital video coding operation, coded system can select general standard coding format to carry out, data flow is decomposed by the mode of macro block, carry out frequency domain conversion, quantification and entropy coding take macro block as unit, complete the Unified coding work of information;
Specifically, for the digital video bit stream that has carried out coding, platform is changed the form of having encoded by transcoding algorithm, proofreaies and correct as the accessible digital video bit stream of unified platform.Transcoding algorithm, analyze coding head and coding body information in video code flow, the mode of source code and object coding is close, adopt the way of data block migration by type of coding Direct Transform, the concrete way of data block migration is: different mobile vectors is demarcated and converted identical all directions to demarcation mode, different macroblock size is converted to 4*4 size macro block, frame difference is converted to 2 frames; Mode difference is larger, adopts the mode of separating decoding post-encoding to change.
This module completes unified compression, verification, the transmission operation of platform to all digital informations.
Transcoding algorithm in described coding correction module is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system,, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
Described processing is unified module and is also comprised:
Mark is added module 330, adds for the unique identification that described unified video information is carried out to information, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.
Be the discernible information of the whole network by the digital information unification of all platforms inside.This module is that all kinds of processing for video information of platform lay the foundation, and the complexity of platform, can implement difficulty and will greatly reduce.
The present invention is can practical function as follows:
A unifies video and retrieves for examination
User can be applied for and play front end audio, video data by monitor client software or web platform.
Platform is supported Streaming Media forwarding capability, is uploaded the management functions such as way management, priority management and multiple management, multiple domain real-time video program request.
1. stream medium data forwarding capability:, in the time that a large amount of concurrent users check the image of certain control point image simultaneously, platform only gathers a road sound view picture from front end IMAQ point, is then distributed to each application monitor client by RTP/RTSP agreement.In the time not having user to apply for specify image, platform is not applied for front end audio, video data, thereby is guaranteed network bandwidth utilization rate to drop to minimum.
2. upload way restriction: upload way when the video of the headend equipment of specifying and reach after the highest way of user's setting, the video application of the new video channel to same equipment, platform will be refused.
3. priority management: upload in limited time when the video of platform application has reached, while having again other video application of operation level of high priority, platform is the real-time video browsing data that automatically cuts off a road and forwarding, and carries out on request new video application, offers high-priority users.Video request priority is in descending order: the application of warning video, the application of centralized stores video, real-time video are checked application.
4. platform adopts computer network with standard network protocol exploitation, supports the unified access of different network environments control point, and front end monitoring image can be with different rates access platform.
5. under multiple management pattern, every one-level platform can only directly be transferred the audio, video data of equipment in this platform compass of competency, to the equipment of non-platform management, applies for to management platform under it.
B is unified to be controlled
After the unified access for transducer collection signal, the unified of various kinds of sensors control signal arranged, technical implementation way is identical with the unified arrangement of transducer collection signal, this type of work, be to solve the different control terminals of current existence can only control system in equipment, cannot unify the problem of controlling to whole network equipment.
Unified control to headend equipment comprises:
1. lens control: aperture adjusting to front-end camera, focus adjustment, range regulation control etc.
2. cradle head control: support the upper and lower, left and right of The Cloud Terrace to rotate, patrol and examine, the setting of presetting bit and calling that the function that arranges of windscreen wiper, auxiliary light switch is supported in the step value setting of cloud platform rotation.
3. patrol and examine taking turn display function: the patrolling and examining of the different presetting bits of same passage, by the taking turn of video camera in group, and can set and patrol and examine prediction scheme administered all devices, periodically relevant device is carried out to field apparatus by desired trajectory according to prediction scheme and patrol and examine and capture preservation, operation conditions and the state information of grasp equipment, complete track inspection function in time.
4. realtime graphic automatically resets: to the camera setting acquiescence monitored state of control point, under normal condition, video camera keeps default conditions, recovers acquiescence monitored state in control in the time period of setting completing.
5. equipment control has independently control button and controls, and provides control function of mouse on video image simultaneously, pulls monitoring orientation, the visual angle of monitored object mode control video camera with mouse, realize further fast, push away far away, focus certain scenery.
The unified storage of C
Because the information of transducer collection has been carried out unified arrangement, therefore, integrator, as long as select any a general memory device, all can unify storage to the dissimilar transducer of front end.
Monitor client and web-based management module all have the function that the video information of storage is inquired about and play.
The retrieval of centralized stores audio frequency and video, the retrieval of remote storage audio frequency and video and three kinds of retrieval modes of local storage audio, video data retrieval are supported in the retrieval of video information, search condition support is by multiple inquiry modes such as time, equipment, places, and user can combine according to demand voluntarily.
Inquire about and press two kinds of modes of time query display by event for video information support.Show Query Result by event query display by recorded file, when broadcasting, play take file as unit; Press time inquiring, be presented at the video time section within the scope of query time with Query Result in the mode of time shaft, played in order in chronological order when broadcasting.
Video information playback, the video information retrieving is play, support four roads to play, operating function comprises simultaneously: play, suspend, stop, F.F., put slowly, single frames broadcasting, loop play, next video recording, previous video recording, Sound control, retrieval, record a video, take pictures, amplify, download etc.
In playing process, support playing progress bar demonstration, pull.
When playback, support the adjusting of picture zoom in/out, local amplification, picture brightness, contrast, saturation, tone, there is single frames and capture and continuous candid photograph ability.
D system management
1. user management
The institutional framework of the platform support unit of pressing builds user's management mode, and what unit organization structure dendrogram was clear, clear represents its unit management framework.
User management content comprises that unit basic information management, department's basic information management and user basic information manage three parts, and wherein department information administrative section is supported multiple management pattern.
User cipher adopts md5 encryption algorithm, guarantees the fail safe of password.
2. user authority management
User authority management comprises administrative client authority, monitor client authority, higher level user's the authority of retrieving for examination.
Administrative client authority: administrative client operating right is divided into system manager, equipment manager, log audit person, domestic consumer, the wherein systematic cura generalis authority of system manager's tool, domestic consumer does not possess login management client authority, only has the authority of login monitor client.
Monitor client authority: the equipment within the scope of platform management is not that each user has operation power and watches power, user right is carried out refinement by platform, is divided into: real-time video broadcasting, Yun Jing control, video adjusting, presetting bit management, local video recording, video capture, the broadcasting of historical query video, warning reception & disposal, taking turn, patrol and examine etc.Keeper can be by the management software of platform the authorizing of the designated passage to designated user, really accomplish the refinement of user right.
Higher level user retrieves for examination authority: the power of retrieving for examination of the equipment of upper management department to administrative department of subordinate is arranged by the keeper of administrative department of subordinate, thereby guarantee that upper management department only sees the video monitoring image of subordinate's important place, reduce the management intensity of higher level department.
3. log management
In order to ensure the O&M safety of platform, by all kinds of daily records of Automatic generation of information such as machine operation and user's main operations, to user behavior is audited in the future.Main log type comprises: User operation log, equipment control daily record, alarm log.
The functions such as the inquiry of log management record support, query template setting, Query Result derivation.In order to ensure the authenticity of log information, log information does not provide modify feature and wall scroll delete function.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the video monitoring unified control method based on sensor, is characterized in that, comprising:
Step 1, the sensing layer of described video monitoring system to described sensor by the access of classifying of multiple interfaces;
Step 2, the transport layer of described video monitoring system is changed multiple interfaces of described sensor, thereby the video information of described sensor collection is transformed into unified digital signal;
Step 3, the service layer of described video monitoring system carries out digitized processing to described digital signal, and normalizing becomes unified video information.
2. video monitoring unified control method as claimed in claim 1, is characterized in that, the switch process of described step 2 comprises:
Analog-to-digital conversion step, gathers the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
Interface conversion step, is unified RJ-45 interface by described multiple interface conversion, and by the data packing to non-ip signals, IP stack encapsulation, is transformed into the digital signal of unified information form, and this digital signal can be identified by RJ-45 interface.
3. video monitoring unified control method as claimed in claim 1, is characterized in that, described step 3 comprises:
Step 31, carries out frequency domain conversion, quantification and entropy coding to described digital signal and processes, and completes digital signal encoding, obtains digital video bit stream;
Step 32, carries out coded format change to described digital video bit stream by transcoding algorithm, proofreaies and correct as unified digital video bit stream.
4. video monitoring unified control method as claimed in claim 3, is characterized in that, the transcoding algorithm in described step 32 is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
5. video monitoring unified control method as claimed in claim 1, it is characterized in that, described step 3 also comprises: the unique identification that described unified video information is carried out to information adds, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.
6. the video monitoring unified control system based on sensor, is characterized in that, comprising:
Classification access module, the sensing layer of described video monitoring system to described sensor by the access of classifying of multiple interfaces;
Modular converter, changes multiple interfaces of described sensor by the transport layer of described video monitoring system, thereby the video information of described sensor collection is transformed into unified digital signal;
Process unified module, by the service layer of described video monitoring system, described digital signal is carried out to digitized processing, normalizing becomes unified video information.
7. video monitoring unified control system as claimed in claim 6, is characterized in that, described modular converter comprises:
Analog-to-digital conversion module, for gathering the analog signal source information of simulation class source of video information, and is transformed into the digital signal of unified information form;
Interface modular converter, for being unified RJ-45 interface by described multiple interface conversion, and by the data packing to non-ip signals, IP stack encapsulation, is transformed into the digital signal of unified information form, and this digital signal can be identified by RJ-45 interface.
8. video monitoring unified control system as claimed in claim 6, is characterized in that, described processing is unified module and comprised:
Coding processing module, carries out frequency domain conversion, quantification and entropy coding to described digital signal and processes, and completes digital signal encoding, obtains digital video bit stream;
Coding correction module, carries out coded format change to described digital video bit stream by transcoding algorithm, proofreaies and correct as unified digital video bit stream.
9. video monitoring unified control system as claimed in claim 8, is characterized in that, the transcoding algorithm in described coding correction module is:
Analyze coding head and coding body information in described digital video bit stream, if the mode of source code and object coding belongs to a class coded system, adopt the way of data block migration by type of coding Direct Transform; Otherwise adopt the mode of separating decoding post-encoding to change.
10. video monitoring unified control system as claimed in claim 6, is characterized in that, described processing is unified module and also comprised:
Mark is added module, adds for the unique identification that described unified video information is carried out to information, and message identification adds definite identification method in employing national standard or the industry standard for special dimension.
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| CN112752137A (en) * | 2020-12-29 | 2021-05-04 | 北京恒泰实达科技股份有限公司 | Monitoring video integrated playing system and method based on large-screen display system |
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