CN102413311B - A kind of mobile monitoring device, system and method for supervising - Google Patents
A kind of mobile monitoring device, system and method for supervising Download PDFInfo
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Abstract
The invention provides a kind of mobile monitoring device, system and method for supervising, cannot meet the problem of application requirements to solve existing watch-dog. Described device comprises: video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time; Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectively local memory module and wireless transport module; Local memory module, for carrying out audio frequency and video numerical data this locality storage; Wireless transport module, for passing through wireless network real-time Transmission to Surveillance center by audio frequency and video numerical data. The present invention not only, by carrying out this locality storage after the audio, video data coding of shooting, can also pass to Surveillance center by wireless network by the audio, video data after coding in real time, the convenient enforcing law of monitoring in real time.
Description
Technical field
The present invention relates to Video Supervision Technique, particularly relate to a kind of mobile prison for all kinds of enforcing lawsControl device, system and method for supervising.
Background technology
All kinds of law enforcement agencies in city (administrative law enforcement, police law execution, vehicle supervision of law enforcement, traffic administrationManagement, the management of personnel's mobile check etc.) enforcing law in, usually occur that citizen and law enfrocement official occurThe situation of disagreeing, and be all each word of saying while in the end judging, be difficult to carry out ruling. Therefore, always withManagement to law enforcement specification is difficult to handle properly.
In order to regulate the law enforcement, retain primary scene evidence, use at present a kind of mobile monitoring device. ShouldEquipment is provided with portable pin hole video camera, can carry out this locality video recording, and enforcing law is filmed to do standbyWith, but also facilitate law enfrocement official to carry. The use of this watch-dog, has improved law enforcement specification greatlyManagement, once both sides dispute, the adjustable live video of getting is judged.
But this watch-dog can only carry out this locality video recording, therefore can only be used as the auxiliary of enforcing lawEquipment, and cannot process when there are emergency on-site law-enforcing personnel, to law enforcement, Surveillance center requests helpTime, due to law enforcement Surveillance center can not understand in time field condition, therefore cannot be equipped with or from around callEffectively guard strength, thus law enforcement relief delayed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of mobile monitoring device, system and monitoring sideMethod, cannot meet the problem of application requirements to solve existing watch-dog.
In order to address the above problem, the invention discloses a kind of mobile monitoring device, comprising:
Video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time;
Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectivelyLocal memory module and wireless transport module;
Local memory module, for carrying out audio frequency and video numerical data this locality storage;
Wireless transport module, for giving monitoring by audio frequency and video numerical data by wireless network real-time TransmissionThe heart.
Preferably, described coding module comprises: high definition coding submodule, and for described audio frequency and video are simulatedData encoding becomes high-definition digital data, and sends to local memory module; Low clear coding submodule, forDescribed audio frequency and video analogue data is encoded into low clear numerical data, and sends to wireless transport module.
Preferably, described high definition coding submodule and low clear coding submodule are placed in same processor chipsIn, and adopt time-division multiplex technology synchronously to carry out high definition coding and low clear coding.
Preferably, described device also comprises: breakpoint retransmission module, and for timing Sampling network state, whenWhen network state does not meet transmission conditions, automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, straightMeet transmission conditions to network state, just call described wireless transport module by low the audio frequency and video of buffer memory clear numberDigital data accelerates to be transferred to Surveillance center.
Preferably, described device also comprises: locating module, and for obtaining current azimuth information, and in real timeSend to described wireless transport module; Described wireless transport module is also for passing through nothing by current azimuth informationSpider lines real-time Transmission is to Surveillance center.
The present invention also provides a kind of mobile monitoring system, comprising: mobile monitoring terminal and Surveillance center's clothesBusiness device, wherein said mobile monitoring terminal comprises:
Video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time;
Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectivelyLocal memory module and wireless transport module;
Local memory module, for carrying out audio frequency and video numerical data this locality storage;
Wireless transport module, for giving monitoring by audio frequency and video numerical data by wireless network real-time TransmissionHeart server;
The audio frequency and video numeral number that described monitoring central server transmits in real time for utilizing mobile monitoring terminalAccording to, scene is monitored.
The present invention also provides a kind of mobile monitor method, comprising:
The audio frequency and video analogue data of collection site;
Described audio frequency and video analogue data is encoded into numerical data;
Described audio frequency and video numerical data is carried out respectively to this locality storage and given by wireless network real-time TransmissionSurveillance center.
Preferably, described audio frequency and video analogue data is encoded into numerical data, comprises: by described audio frequency and videoAnalogue data is encoded into respectively high-definition digital data and low clear numerical data, and wherein high-definition digital data are used forLocal storage, low clear numerical data is for passing through wireless network real-time Transmission.
Preferably, in same processor chips, adopt time-division multiplex technology synchronously to carry out high definition coding and lowClear coding.
Preferably, described method also comprises: timing Sampling network state, and when network state does not meet transmissionWhen condition, automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, until network state meets transmissionCondition, just accelerates to be transferred to Surveillance center by low the audio frequency and video of buffer memory clear numerical data by wireless network.
Preferably, described method also comprises: obtain current azimuth information, and pass in real time by wireless networkBe defeated by Surveillance center.
Compared with prior art, the present invention has the following advantages:
First, the invention provides a kind of mobile monitoring device, this device comprise video camera, coding module,Local memory module and wireless transport module, this device is not only by after the audio, video data coding of shootingCarry out this locality storage, the audio, video data after coding can also be passed in monitoring by wireless network in real timeThe heart. Like this, in all kinds of enforcing laws, especially in police law enforcement, law enforcement Surveillance center by with instituteState mobile monitoring device real-time Communication for Power, just can monitor in real time enforcing law, and it is on-the-spot to understand in time law enforcementVarious situations, thereby in the time that law enforcement cannot complete independently, can effectively be equipped with and call guard strengthOn-site law-enforcing is helped.
Secondly, because high definition code check is not suitable with the wireless transmission of low bandwidth, therefore mobile prison of the present inventionIn control device, coding module carries out respectively high definition and low clear coding to the audio, video data of collection in worksite, itsData after middle high definition coding are carried out this locality and are stored, and data after low clear coding are carried out wireless at a distanceTransmission, thus wireless transmission quality ensured. And high definition and low clear code stream are in same processor chipsIn encode, this chip adopts time-division multiplex technology synchronously to carry out the coding of many code streams, with prior artThe mode of encoding in two chips is respectively compared, and the present invention can save resources of chip.
Again, in wireless transmission process, because wireless network has unstability, may there is signalA little less than cause network to connect bandwidth not or situation about disconnecting occurs. In mobile monitoring device of the present inventionAlso be provided with breakpoint retransmission module, for timing Sampling network state, when network state does not meet transmission barWhen part, automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, until network state meets transmission barPart, just calls described wireless transport module low the audio frequency and video of buffer memory clear numerical data is accelerated to be transferred to monitoringCenter. Therefore, the breakpoint functions of retransmission of mobile monitoring device of the present invention can further ensure wirelessTransmission quality.
Brief description of the drawings
Fig. 1 is the structure chart of a kind of mobile monitoring device described in the embodiment of the present invention;
Fig. 2 is the structure chart of a kind of mobile monitoring system described in the embodiment of the present invention;
Fig. 3 is the flow chart of a kind of mobile monitor method described in the embodiment of the present invention.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawingThe present invention is further detailed explanation with detailed description of the invention.
In all kinds of mobile law enforcement processes, especially in police's mobile law enforcement, for the very first time is to law enforcementSurveillance center provides law enforcement on-the-spot realtime graphic, the present invention proposes one and is applicable to mobile law enforcement, spyIt not the mobile monitoring device of police mobile law enforcement.
With reference to Fig. 1, it is the structure chart of a kind of mobile monitoring device described in the embodiment of the present invention.
Described mobile monitoring device mainly comprises video camera 11, coding module 12, local memory module 13With wireless transport module 14. Wherein, described video camera 11 is for the audio frequency and video simulation at Real-time Collection sceneData, are generally portable microcam, as pinhole camera. Video camera 11 also will gatherAnalogue data send in real time coding module 12 to process.
Described coding module 12 is for described audio frequency and video analogue data is encoded into numerical data, and differenceSend to local memory module 13 and wireless transport module 14. In the present embodiment, described coding module 12Can adopt existing Multi-encoding method that analogue data compressed encoding is become to numerical data.
But, if adopt high definition code check to encode, because high definition code check cannot adapt to the nothing of low bandwidthLine transmission, therefore preferred, described coding module 12 further comprises:
High definition coding submodule 121, for described audio frequency and video analogue data is encoded into high-definition digital data,And send to local memory module 13;
Low clear coding submodule 122, for described audio frequency and video analogue data is encoded into low clear numerical data,And send to wireless transport module 14.
Like this, what described local memory module 13 was stored is high-definition digital data, and wireless transport module14 transmission be low clear numerical data. Wherein, high definition coding submodule 121 can adopt existing multiple heightClear coding method completes high definition coding, and that low clear coding submodule 122 also can adopt is existing multiple low clearCoding method completes low clear coding. No matter adopt which kind of coding method, high definition coding and low clear coding totalBody thought is: in the time carrying out the filling process of graph data, high definition coding submodule 121 is filled high definition codeThe details drawing graphic data that rate is corresponding, low clear coding submodule 122 is filled the automatic simplification that low clear code check is correspondingGraph data.
In addition,, in prior art, high definition coding submodule 121 and low clear coding submodule 122 are put respectivelyIn two processor chips, carry out respectively high definition and low clear coding. And in the present embodiment, high definition codingSubmodule 121 and low clear coding submodule 122 are placed in same processor chips, are undertaken by a chipThe coding of many code streams, thus resources of chip saved. In same chip, need to solve many code streams synchronousProblem. The present embodiment adopts time-division multiplex technology, carries out high definition volume according to the absolute time of chip systemNumeral module 121 and low clear coding submodule 122 synchronous.
Described local memory module 13 is stored for the audio frequency and video numerical data after coding is carried out to this locality,So that playback is used. Described local memory module 13 can be the storage mediums such as portable hard drive.
Described wireless transport module 14 is for giving audio frequency and video numerical data by wireless network real-time TransmissionSurveillance center. Wireless transport module 14 is set up radio channel by the base station of finding nearby, then by soundDigital video data are packaged into packet and are transferred to Surveillance center by radio channel. Described radio channel canAdopt IP agreement or other procotols to transmit.
In practical application, wireless transport module 14 can be WiMAX module, WiFi module etc.WiMAX full name is WorldwideInteroperabilityforMicrowaveAccess, global micro-The interconnected access of ripple. Another name of WiMAX is 802.16. WiMAX is an emerging broadbandWireless access technology, can provide the high speed of Internet to connect, and data transmission distance can reach farthest50km. WiMAX also has the advantages such as QoS ensures, transfer rate is high, business is rich and varied. CauseThis, the present embodiment is preferentially selected WiMAX module.
But, in wireless transmission process, because wireless network has unstability, may there is signalA little less than cause network to connect bandwidth not or situation about disconnecting occurs. Therefore preferred, described in the present embodimentIn mobile monitoring device, be also provided with breakpoint retransmission module 15, for timing Sampling network state, work as networkWhen state does not meet transmission conditions, automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, until netNetwork state meets transmission conditions, just calls described wireless transport module by low the audio frequency and video of buffer memory clear digital numberAccording to accelerating to be transferred to Surveillance center. Be transmitted and work as local cache, system is recovered normal condition, no longerCarry out the low clear code stream buffer memory in this locality. Wherein, described transmission conditions need to be according to the network feelings in practical applicationCondition is determined.
Preferably, described mobile monitoring device can also comprise: locating module 16, work as front for obtainingPosition information, and send in real time described wireless transport module 14. Accordingly, described wireless transport module14 also for passing through wireless network real-time Transmission to Surveillance center by current azimuth information, and Surveillance center canKnow in real time the geographical location information of mobile monitoring device.
The most frequently used locating module 16 is GPS locating modules. GPS is global positioning system (GlobalPositioningSystem). Briefly, this is defending of being made up of 24 satellites covering the whole worldStar system. This system can ensure at any time, and on the earth, any point can observe simultaneously4 satellites, to ensure that satellite can collect longitude and latitude and the height of this observation station, so that realization navigation,The functions such as location, time service. This technology can be used for vector aircraft, boats and ships, vehicle and individual, peaceEntirely, exactly along selected route, arrive punctually at the destination.
In addition, described device is also provided with control module 16, for the modules of device is controlled,As control the transfer of data of each intermodule, also for completing the functions such as the conversion of data format.
In sum, in above-mentioned mobile monitoring device, the data processing of each intermodule is as follows:
Video camera is taken the scene of enforcing the law, and field data is passed to coding mould by control modulePiece; Coding module adopt time-division multiplex technology synchronously carry out high definition and low clear coding, then by coding afterHigh-definition data is issued local memory module by control module, low clear data is sent out by control module simultaneouslyGive wireless transport module; Wireless transport module is found base station and is set up radio channel, and low clear data are packaged asIP packet is transferred to Surveillance center by radio channel. In this process, breakpoint retransmission module can be byThe data of breakpoint are carried out buffer memory, then in the time that network state meets transmission conditions, data cached continuation are passedDefeated. And locating module can obtain current azimuth information and offer control module, control module is currentAzimuth information converts the transfer of data of cannonical format to wireless transport module, and wireless transport module is dataBe packaged into IP bag and be transferred to Surveillance center by radio channel. Described locating module refreshes in real time works as frontPosition information.
Said apparatus not only can will carry out this locality storage after the audio, video data coding of shooting, can alsoEnough the audio, video data after coding is passed to Surveillance center by wireless network in real time. Like this, hold all kinds ofIn method process, especially, in police's law enforcement, law enforcement Surveillance center is by real-time with described mobile monitoring deviceCommunication, just can monitor enforcing law in real time, and understands in time the on-the-spot various situations of law enforcement, therebyWhen law enforcement cannot complete independently, can effectively be equipped with and call guard strength on-site law-enforcing is helpedHelp.
Based on above-mentioned mobile monitoring device, the present invention also provides a kind of embodiment of mobile monitoring system.
With reference to Fig. 2, it is the structure chart of a kind of mobile monitoring system described in the embodiment of the present invention.
Described mobile monitoring system mainly comprises mobile monitoring terminal 21 and monitoring central server 22, instituteState mobile monitoring terminal 21 and be mainly used in collection site data and pass in real time monitoring central server 22,Monitoring central server 22 utilizes these real time datas to monitor the scene of enforcing the law.
In described mobile monitoring terminal 21, be provided with above-mentioned mobile monitoring device, therefore can comprise:
Video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time;
Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectivelyLocal memory module and wireless transport module;
Local memory module, for carrying out audio frequency and video numerical data this locality storage;
Wireless transport module, for giving monitoring by audio frequency and video numerical data by wireless network real-time TransmissionHeart server.
In addition, described mobile monitoring terminal 21 can also comprise breakpoint retransmission module and locating module.
In enforcing law, described mobile monitoring terminal 21 is equipped to law enfrocement official and uses, described monitoringCentral server 22 is arranged on Surveillance center, and law enfrocement official can be by movement by mobile monitoring terminal 21Enforcing law is filmed and is real-time transmitted to monitoring central server 22, and Surveillance center is by monitoring in real timeCan in case of emergency fast and effeciently allocate nearest POLICE SUPPORT.
Based on above-mentioned mobile monitoring device, the present invention also provides corresponding embodiment of the method.
With reference to Fig. 3, it is the flow chart of a kind of mobile monitor method described in the embodiment of the present invention.
Step 301, the audio frequency and video analogue data of collection site;
Utilize pinhole camera to carry out whole process video recording.
Step 302, is encoded into numerical data by described audio frequency and video analogue data;
Described audio frequency and video analogue data is encoded into respectively to high-definition digital data and low clear numerical data, whereinHigh-definition digital data are carried out this locality storage, and low clear numerical data is carried out remote wireless transmission, thereby protectDemonstrate,prove wireless transmission quality. And, in same processor chips, adopt time-division multiplex technology synchronously to carry outHigh definition coding and low clear coding, saved resources of chip.
Step 303, carries out respectively this locality storage and real by wireless network by described audio frequency and video numerical dataTime be transferred to Surveillance center.
In order to ensure stable transfer, timed sending detects the real-time Sampling network state of signaling, works as network stateWhile not meeting transmission conditions, automatically start the low clear numerical data of audio frequency and video at local cache breakpoint, untilNetwork state meets transmission conditions, just suitably accelerates transfer rate, the number when breakpoint of first transmitting locally buffer memoryAccording to, until local cache is transmitted, system is recovered normal condition, no longer carries out the low clear code stream in this locality and delaysDeposit.
In addition, GPS carries out law enfrocement official location in real time, and law enfrocement official's current azimuth information is logical in real timeCross wireless network real-time Transmission to Surveillance center.
In sum, described mobile monitor method is mainly used in police's mobile law enforcement, can realize law enforcementThe omnidistance video recording of process, the very first time provides law enforcement on-the-spot realtime graphic to Surveillance center, and locates current patrollingPatrol police position, be beneficial to effective arrangement police strength patrol, in the time running into emergency, can fast and effeciently adjustJoin nearest POLICE SUPPORT.
Each embodiment in this description all adopts the mode of going forward one by one to describe, and each embodiment stressesBe all and the difference of other embodiment, between each embodiment identical similar part mutually referring to. For embodiment of the method, because it is substantially similar to device embodiment, so the ratio of describingSimpler, relevant part is referring to the part explanation of embodiment of the method.
To a kind of mobile monitoring device provided by the present invention, system and method for supervising, carry out in detail aboveThin introduction, has applied specific case herein principle of the present invention and embodiment has been set forth, withThe explanation of upper embodiment is just for helping to understand method of the present invention and core concept thereof; Meanwhile, forOne of ordinary skill in the art, according to thought of the present invention, in specific embodiments and applicationsAll will change, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a mobile monitoring device, is characterized in that, comprising:
Video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time;
Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectivelyLocal memory module and wireless transport module; Described coding module comprises: high definition coding submodule, forDescribed audio frequency and video analogue data is encoded into high-definition digital data, and sends to local memory module; Low clearCoding submodule, for described audio frequency and video analogue data is encoded into low clear numerical data, and sends to nothingLine transport module;
Local memory module, for carrying out audio frequency and video numerical data this locality storage;
Wireless transport module, for giving monitoring by audio frequency and video numerical data by wireless network real-time TransmissionThe heart;
Breakpoint retransmission module, for timing Sampling network state, in the time that network state does not meet transmission conditions,Automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, until network state meets transmission conditions,Call described wireless transport module low the audio frequency and video of buffer memory clear numerical data is accelerated to be transferred to Surveillance center.
2. device according to claim 1, is characterized in that:
Described high definition coding submodule and low clear coding submodule are placed in same processor chips, and adoptTime-division multiplex technology synchronously carries out high definition coding and low clear coding.
3. device according to claim 1, is characterized in that, also comprises:
Locating module, for obtaining current azimuth information, and sends to described wireless transport module in real time;
Described wireless transport module is also for giving prison by current azimuth information by wireless network real-time TransmissionControl center.
4. a mobile monitoring system, is characterized in that, comprising: mobile monitoring terminal and Surveillance centerServer, wherein said mobile monitoring terminal comprises:
Video camera, for the audio frequency and video analogue data of collection site, and sends to coding module in real time;
Coding module, for described audio frequency and video analogue data is encoded into numerical data, and sends to respectivelyLocal memory module and wireless transport module; Described coding module comprises: high definition coding submodule, forDescribed audio frequency and video analogue data is encoded into high-definition digital data, and sends to local memory module; Low clearCoding submodule, for described audio frequency and video analogue data is encoded into low clear numerical data, and sends to nothingLine transport module;
Local memory module, for carrying out audio frequency and video numerical data this locality storage;
Wireless transport module, for giving monitoring by audio frequency and video numerical data by wireless network real-time TransmissionHeart server;
Breakpoint retransmission module, for timing Sampling network state, in the time that network state does not meet transmission conditions,Automatically start the low clear numerical data of audio frequency and video of buffer memory breakpoint, until network state meets transmission conditions,Call described wireless transport module low the audio frequency and video of buffer memory clear numerical data is accelerated to be transferred to Surveillance center;
The audio frequency and video numeral number that described monitoring central server transmits in real time for utilizing mobile monitoring terminalAccording to, scene is monitored.
5. a mobile monitor method, is characterized in that, comprising:
The audio frequency and video analogue data of collection site;
Described audio frequency and video analogue data is encoded into numerical data;
Described audio frequency and video numerical data is carried out respectively to this locality storage and given by wireless network real-time TransmissionSurveillance center;
Timing Sampling network state, in the time that network state does not meet transmission conditions, starts buffer memory breakpoint automaticallyThe low clear numerical data of audio frequency and video, until network state meets transmission conditions, just by low the audio frequency and video of buffer memoryClear numerical data accelerates to be transferred to Surveillance center by wireless network;
Wherein, described audio frequency and video analogue data is encoded into numerical data, comprises:
Described audio frequency and video analogue data is encoded into respectively to high-definition digital data and low clear numerical data, whereinHigh-definition digital data are for local storage, and low clear numerical data is for passing through wireless network real-time Transmission.
6. method according to claim 5, is characterized in that:
In same processor chips, adopt time-division multiplex technology synchronously to carry out high definition coding and low clear coding.
7. according to the arbitrary described method of claim 5 to 6, it is characterized in that, also comprise:
Obtain current azimuth information, and pass through wireless network real-time Transmission to Surveillance center.
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Effective date of registration: 20171221 Address after: 100083 Haidian District, Xueyuan Road, No. 35, the world building, the second floor of the building on the ground floor, No. 16 Co-patentee after: Vimicro Electronics Co., Ltd. Patentee after: Zhongxing Technology Co., Ltd. Address before: 100083 Haidian District, Xueyuan Road, No. 35, the world building, the second floor of the building on the ground floor, No. 16 Co-patentee before: Vimicro Electronics Co., Ltd. Patentee before: Beijing Vimicro Corporation |
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Address after: 100083 Haidian District, Xueyuan Road, No. 35, the world building, the second floor of the building on the ground floor, No. 16 Co-patentee after: Vimicro Electronics Co., Ltd. Patentee after: Mid Star Technology Limited by Share Ltd Address before: 100083 Haidian District, Xueyuan Road, No. 35, the world building, the second floor of the building on the ground floor, No. 16 Co-patentee before: Vimicro Electronics Co., Ltd. Patentee before: Zhongxing Technology Co., Ltd. |