CN105376606A - Fire image processing terminal and fire command method based on terminal - Google Patents

Fire image processing terminal and fire command method based on terminal Download PDF

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Publication number
CN105376606A
CN105376606A CN201510898124.0A CN201510898124A CN105376606A CN 105376606 A CN105376606 A CN 105376606A CN 201510898124 A CN201510898124 A CN 201510898124A CN 105376606 A CN105376606 A CN 105376606A
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CN
China
Prior art keywords
module
fire
submodule
image processing
processing terminal
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CN201510898124.0A
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Chinese (zh)
Inventor
王广成
杨佳庆
商德民
徐放
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI BEIAN INDUSTRIAL Co Ltd
Shanghai Fire Research Institute of Ministry of Public Security
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SHANGHAI BEIAN INDUSTRIAL Co Ltd
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Priority to CN201510898124.0A priority Critical patent/CN105376606A/en
Publication of CN105376606A publication Critical patent/CN105376606A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4341Demultiplexing of audio and video streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4385Multiplex stream processing, e.g. multiplex stream decrypting
    • H04N21/43853Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The invention relates to a fire image processing terminal and a fire command method based on the terminal. The terminal comprises a picture acquisition module, a radio frequency processing module, a baseband processing module, a data processing module and a signal output module; the radio frequency processing module comprises a filter module and an analog-to-digital conversion submodule; the baseband processing module comprises a demodulation and equalization submodule and a decoding submodule; the data processing module comprises a decryption submodule and a demultiplexing submodule; the picture acquisition module is orderly connected with the filter module, the analog-to-digital conversion submodule, the demodulation and equalization submodule, the decoding submodule, the decryption submodule and the demultiplexing submodule; and the demultiplexing submodule is connected with an external upper computer through the signal output module. By adopting the terminal of the invention, scenes of fire scenes are transmitted to a fire command center in real time, so that staff of the fire center can more accurately perform remote command according to site conditions, and the fire efficiency can be improved and the fire energy consumption can be saved.

Description

Fire-fighting image processing terminal and the fire-fighting command method based on this terminal
Technical field
The invention belongs to fire-fighting technical field of image processing, be specially a kind of fire-fighting image processing system, the fire-fighting image processing system under especially a kind of mobile status.
Background technology
At present, according to the requirement of the new Fire Prevention Law of China, public security fire-fighting army will bear the vital tasks such as fire extinguishing, rescue, the ability of fire department reply emergency task is had higher requirement, fire emergency communication no longer only will be satisfied with voice radio communication, under complex environment, how to ensure that the quality of audio/video communication will be the most significant problems from now on faced by fire emergency communication.On the one hand, the on-the-spot geographical environment of fire fighting and rescue is increasingly sophisticated, and skyscraper, underground space building become difficult point and the emphasis of fire fighting and rescue day by day, and the new period, firemanic feature was had higher requirement to communication support ability; On the other hand, in current fire-fighting command is fought, army's majority is equipped with the use as traffic guidance's contact such as hand-held station, wireless command radio station.Go deep into first-line soldier and whether by signal equipment, the information such as fire fighting and rescue live video, audio frequency can be reliably delivered to rear, will greatly affect the floor manager efficiency of decision-making.Therefore, development has the fire communication equipment of video, audio frequency transmission function, and the emergency communication security mechanism setting up audio/video linkage is the developing direction of fire emergency communication.
Image processing techniques is the key technology that the fire communication equipment of video/audio transfer function needs to solve, and the present invention will design a kind of fire-fighting image processing system, for realizing the mobile video information transmission of fire communication equipment.
Summary of the invention
The object of the present invention is to provide a kind of fire-fighting image processing terminal, make command centre can see on-the-spot picture in real time, and come to command more accurately according to real-time pictures.
For realizing above object, the invention provides a kind of fire-fighting image processing terminal, comprising picture acquisition module, radio frequency processing module, baseband processing module, data processing module and signal output module;
Radio frequency processing module comprises encryption submodule, modulation submodule, filtering unit and analog-to-digital conversion submodule;
Baseband processing module comprises separates the balanced submodule of mediation and decoding sub-module;
Data processing module comprises deciphering submodule, demultiplex module;
Picture acquisition module successively with encryption submodule, modulate submodule, filtering unit, analog-to-digital conversion submodule, separate and be in harmonious proportion balanced submodule, decoding sub-module, deciphering submodule, demultiplex module and be connected, demultiplex module is connected with computer (outside host computer) by signal output module.
As preferably, also comprise display module, speech output module, video decompression module and D/A converter module;
Demultiplex module is connected with video decompression module, and video decompression module is connected with D/A converter module, and D/A converter module is connected with speech output module with display module respectively.
As preferably, video decompression module is MPEG-4 decompression module.
As preferably, also comprise communication module;
Decoding sub-module is also connected with communication module, and communication module is connected with outside FCC by IP network.
As preferably, communication module comprises wired communicator module and/or radio communication submodule.
As preferably, encoding submodule is LDPC encoding submodule or Turbo encoding submodule; Decoding sub-module is LDPC decoding sub-module or Turbo decoding sub-module.
As preferably, radio frequency processing module also comprises Low phase noise local vibration source; Low phase noise local vibration source is connected with filtering unit.
As preferably, encryption submodule is AES encryption submodule; Deciphering submodule is that AES deciphers submodule.
As preferably, demultiplex module submodule is that TS flows demultiplex module.
As preferably, baseband processing unit also comprises synchronous submodule and deinterleaving submodule;
Synchronous submodule respectively with analog-to-digital conversion submodule, separate and be in harmonious proportion balanced submodule and be connected; Deinterleaving submodule is in harmonious proportion balanced submodule, decoding sub-module respectively and is connected with solution.
As preferably, radio frequency processing module also comprises low noise amplifier;
Low noise amplifier is connected with radio communication submodule, filtering unit respectively.
Present invention also offers a kind of fire-fighting image processing system, include the fire-fighting image processing terminal of computer and above-mentioned any one.
Present invention also offers a kind of fire-fighting image processing method, based on above-mentioned fire-fighting image processing system, fire-fighting image processing method comprises the following steps:
S1, shooting scene of fire picture;
S2, scene of fire picture is encoded, encrypts, modulated;
S3, by Low phase noise local vibration source to coding, encryption, modulation after signal frequency conversion filtering;
S4, the analog signal after variable-frequency filtering is converted into digital signal;
S5, demodulation, equalized digital signal;
S6, decoded digital signal;
S7, decrypting digital signal;
S8, demultiplexing digital signal;
S9, machine solution compression digital signal, and digital signal is converted to analog signal, demonstrate picture by computer display.
As preferably, after step S6, the deciphering of fire-fighting image processing terminal, demultiplexing digital signal, and demonstrate picture, output audio.
As preferably, after step S6, picture is also packed by fire-fighting image processing terminal, is sent to the computer of FCC by IP network.
As preferably, when sending picture by Wireless IP network, after step S4, synchronization transmission channel.
As preferably, in step s 2, go back interweaving encoding scene of fire picture signal;
After step S5, deinterleaving scene of fire picture signal.
Present invention also offers a kind of fire-fighting command method, comprise the following steps:
S0, prepare the fire-fighting image processing terminal of above-mentioned any one;
S1, fire-fighting image processing terminal is utilized to take the video of scene of fire;
S2, fire-fighting image processing terminal carry out filtering, analog-to-digital conversion, solution mediation equilibrium, decoding successively to video;
S3, fire-fighting image processing terminal are decrypted and demultiplexing successively to decoded video, and the video after demultiplexing is sent to outside host computer, outside host computer process display video;
S4, fire-fighting image processing terminal are sent to the host computer of FCC by internet to decoded video, the host computer process of FCC display video;
S5, the video demonstrated according to step S3 or step S4 are commanded front fireman;
Wherein, step S3 and step S4 can carry out simultaneously, carries out successively or only carry out one of them step; When step S3 and step S4 carries out successively, order is not limit.
As preferably, after step S5,
Display module demonstrates commander's content;
Speech output module exports commander's contextual audio.
The present invention compares existing fire-fighting command method, has the following advantages:
1, command centre distally can see the situation at fire-fighting scene in real time, can make more suitable fire-fighting in time, exactly and judge, promote the efficiency of fire-fighting, energy savings according to the situation at scene.
2, adopt the video of MPEG-4 standard, the video definition taking out can be guaranteed.
3, by wireless network or wired internet network, video can be sent to the FCC of far-end, make the staff of FCC also see live view by fire-fighting image processing terminal.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of one embodiment of the present invention.
Fig. 2 is the workflow diagram of fire-fighting image processing terminal in one embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.
For solving the problems of the technologies described above, the first execution mode of the present invention provides a kind of fire-fighting image processing terminal, comprises picture acquisition module, radio frequency processing module, baseband processing module, data processing module and signal output module;
Radio frequency processing module comprises encryption submodule, modulation submodule, filtering unit and analog-to-digital conversion submodule;
Baseband processing module comprises separates the balanced submodule of mediation and decoding sub-module;
Data processing module comprises deciphering submodule, demultiplex module;
Picture acquisition module successively with encryption submodule, modulate submodule, filtering unit, analog-to-digital conversion submodule, separate and be in harmonious proportion balanced submodule, decoding sub-module, deciphering submodule, demultiplex module and be connected, demultiplex module is connected with outside host computer by signal output module.
As preferably, also comprise display module, speech output module, video decompression module and D/A converter module;
Demultiplex module is connected with video decompression module, and video decompression module is connected with D/A converter module, and D/A converter module is connected with speech output module with display module respectively.
As preferably, video decompression module is MPEG-4 decompression module.
As preferably, also comprise communication module;
Decoding sub-module is also connected with communication module, and communication module is connected with outside FCC by IP network.
As preferably, communication module comprises wired communicator module and/or radio communication submodule.
As preferably, encoding submodule is LDPC encoding submodule or Turbo encoding submodule; Decoding sub-module is LDPC decoding sub-module or Turbo decoding sub-module.
As preferably, radio frequency processing module also comprises Low phase noise local vibration source; Low phase noise local vibration source is connected with filtering unit.
As preferably, encryption submodule is AES encryption submodule; Deciphering submodule is that AES deciphers submodule.
As preferably, demultiplex module submodule is that TS flows demultiplex module.
As preferably, baseband processing unit also comprises synchronous submodule and deinterleaving submodule;
Synchronous submodule respectively with analog-to-digital conversion submodule, separate and be in harmonious proportion balanced submodule and be connected; Deinterleaving submodule is in harmonious proportion balanced submodule, decoding sub-module respectively and is connected with solution.
As preferably, radio frequency processing module also comprises low noise amplifier;
Low noise amplifier is connected with radio communication submodule, filtering unit respectively.
The fire-fighting image processing terminal that the present embodiment provides, as shown in Figure 2, its workflow is as follows:
1, by picture acquisition module shooting scene of fire.In the present embodiment, what picture acquisition module adopted is CCD camera assembly.While collection picture, coding can carry out AES encryption and modulation to encryption submodule and modulation submodule to this picture.
2, Low phase noise local vibration source provides Low phase noise local oscillator to filtering unit, makes filtering unit realize the function of down-conversion and intermediate frequency filtering.
3, analog-to-digital conversion is carried out to down-conversion and filtered signal, change signal into digital signal.
4, utilizing orthogonal frequency division multiplexi (i.e. OFDM, OrthogonalFrequencyDivisionMultiplexing) to carry out solution is in harmonious proportion balanced, for resisting multiple interference.
5, the mode of LDPC or Turbo is utilized to decode.
6, decipher submodule by carrying out AES deciphering to video, then by TS stream demultiplex module realize audio frequency, video synchronous.
While carrying out the 6th step, by IP packetization module, video is packed, by communication module, the video after packing is sent to FCC by the Internet.In the present embodiment, communication module can be wired communication module, is connected to the Internet by RJ45 connector, can be also wireless communication module, utilizes WIFI or mobile communications network to be sent to the Internet.
7, by RS232 interface, audio frequency, video and on-the-spot gps data after synchronous is sent to the computer in fire fighting command car, machine solution compression digital signal, and digital signal is converted to analog signal, picture is demonstrated by computer display, by loud speaker output sound, check for commanding.
Simultaneously, fire-fighting image processing terminal self carries out MPEG-4 decompression to video simultaneously, and carry out digital-to-analogue conversion, the simulated audio signal after conversion, analog video signal are exported by display module (display screen) and speech output module (loud speaker).
Utilize above-mentioned fire-fighting image processing terminal and comprise the system of this fire-fighting image processing terminal, a kind of fire-fighting command method can be realized, comprise the following steps:
S0, prepare above-mentioned fire-fighting image processing terminal;
S1, fire-fighting image processing terminal is utilized to take the video of scene of fire;
S2, fire-fighting image processing terminal carry out filtering, analog-to-digital conversion, solution mediation equilibrium, decoding successively to video;
S3, fire-fighting image processing terminal are decrypted and demultiplexing successively to decoded video, and the video after demultiplexing is sent to outside host computer, outside host computer process display video;
S4, fire-fighting image processing terminal are sent to the host computer of FCC by internet to decoded video, the host computer process of FCC display video;
S5, the video demonstrated according to step S3 or step S4 are commanded front fireman;
Wherein, step S3 and step S4 can carry out simultaneously, carries out successively or only carry out one of them step; When step S3 and step S4 carries out successively, order is not limit.
In the present embodiment, based on this fire-fighting image processing terminal, the situation of scene of fire can be sent to fire-fighting command scene in time, or even FCC at a distance, make fire-fighting command staff can come more reasonably to command according to the real-time video data at scene, promote fire-fighting efficiency, save the resources such as the water being used for fire-fighting.
As preferably, when commander staff makes commander, display module demonstrates commander's content; Speech output module exports commander's contextual audio.By this kind of design, Field Force can be realized and the exchanging of command centre staff by means of only fire-fighting image processing terminal, eliminate the trouble of telephonic communication, intercom communication.
The respective embodiments described above realize specific embodiments of the invention, persons of ordinary skill in the art may appreciate that and in actual applications, can do various change in the form and details to it, and without departing from the spirit and scope of the present invention.

Claims (10)

1. a fire-fighting image processing terminal, is characterized in that, comprises picture acquisition module, radio frequency processing module, baseband processing module, data processing module and signal output module;
Described radio frequency processing module comprises encryption submodule, modulation submodule, filtering unit and analog-to-digital conversion submodule;
Described baseband processing module comprises separates the balanced submodule of mediation and decoding sub-module;
Described data processing module comprises deciphering submodule, demultiplex module;
Described picture acquisition module successively with described encryption submodule, modulate submodule, filtering unit, analog-to-digital conversion submodule, separate and be in harmonious proportion balanced submodule, decoding sub-module, deciphering submodule, demultiplex module and be connected, described demultiplex module is connected with outside host computer by described signal output module.
2. fire-fighting image processing terminal according to claim 1, is characterized in that, also comprises display module, speech output module, video decompression module and D/A converter module;
Described demultiplex module is connected with described video decompression module, and described video decompression module is connected with described D/A converter module, and described D/A converter module is connected with speech output module with described display module respectively.
3. fire-fighting image processing terminal according to claim 2, is characterized in that, described video decompression module is MPEG-4 decompression module.
4. fire-fighting image processing terminal according to claim 1, is characterized in that, also comprise communication module;
Described decoding sub-module is also connected with described communication module, and described communication module is connected with outside FCC by IP network.
5. fire-fighting image processing terminal according to claim 1, is characterized in that, described encoding submodule is LDPC encoding submodule or Turbo encoding submodule; Described decoding sub-module is LDPC decoding sub-module or Turbo decoding sub-module.
6. fire-fighting image processing terminal according to claim 1, is characterized in that, described radio frequency processing module also comprises Low phase noise local vibration source; Described Low phase noise local vibration source is connected with described filtering unit.
7. fire-fighting image processing terminal according to claim 1, is characterized in that, described encryption submodule is AES encryption submodule; Described deciphering submodule is that AES deciphers submodule.
8. fire-fighting image processing terminal according to claim 1, is characterized in that, described demultiplex module submodule is that TS flows demultiplex module.
9. a fire-fighting command method, is characterized in that, comprises the following steps:
Fire-fighting image processing terminal in S0, preparation claim 1 to 8 described in any one;
S1, described fire-fighting image processing terminal is utilized to take the video of scene of fire;
S2, described fire-fighting image processing terminal carry out filtering, analog-to-digital conversion, solution mediation equilibrium, decoding successively to described video;
S3, described fire-fighting image processing terminal are decrypted successively and demultiplexing decoded described video, and the video after demultiplexing are sent to outside host computer, and described outside host computer process also demonstrates described video;
S4, described fire-fighting image processing terminal are sent to the host computer of FCC by internet to decoded described video, the host computer process of described FCC also demonstrates described video;
S5, the described video demonstrated according to step S3 or step S4 are commanded front fireman;
Wherein, described step S3 and step S4 can carry out simultaneously, carries out successively or only carry out one of them step; When described step S3 and step S4 carries out successively, order is not limit.
10. fire-fighting command method according to claim 9, is characterized in that, after described step S5,
Described display module demonstrates commander's content;
Described speech output module exports commander's contextual audio.
CN201510898124.0A 2015-12-08 2015-12-08 Fire image processing terminal and fire command method based on terminal Pending CN105376606A (en)

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