CN1269575A - Automatic remote image/language transfer monitoring system - Google Patents
Automatic remote image/language transfer monitoring system Download PDFInfo
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- CN1269575A CN1269575A CN00104208A CN00104208A CN1269575A CN 1269575 A CN1269575 A CN 1269575A CN 00104208 A CN00104208 A CN 00104208A CN 00104208 A CN00104208 A CN 00104208A CN 1269575 A CN1269575 A CN 1269575A
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Abstract
The remote image/speech automatic transmission supervisory control system is formed of one set (or two sets) of control centre equipment mounted in supervisory control centre and several remote image/speech processing devices respectively mounted in different remote supervisory control stations, and the control centre equipment and remote image/speech processing devices are respectively connected with telephone exchange network via telephone line. The image/speech signal collected by remote image/speech processing device in-situ is compressed and coded, then transferred into supervisory control centre equipment, and said image/speech data can be decompressed by control centre to reproduce remote image and speech.
Description
The present invention relates to the automatic transmitting, monitoring device of a kind of remote image/language, particularly the image of remote monitoring station collection in worksite and Speech Signal Compression coding is after telephone wire is delivered to control center's device of Surveillance center, control center's device will carry out decompression through the compression coded image and the speech data of telephone wire transmission, and reproduce distal view picture and sound equipment by demonstration on control center's device and loudspeaker arrangement.
At present, each outlet of financial institution and some other important units, for realizing timely warning, great majority adopt the switching signal alarm device, as infrared sensor, microwave probe etc.In case a situation arises, warning device carries out automatic dialing alarm or the manual dial reports to the police.After security personnel or police receive the report for police service signal, under the condition of not understanding field condition, just must arrive in alarm set point immediately, this has brought adverse factors to dealing carefully with of incident.Security personnel or police press for when receiving alerting signal and can directly obtain image scene and sound, provide reference for handling accident accurately and timely.
At industrial sectors such as oil, electric power, chemical industry, mines, 24 hours unmanneds will be carried out in a lot of facilities and post, finish such as remote viewing, remote measurement, remote control, the multimedia information transmission of remote signalling.For example: a large hydropower station, circumference distributes tens kilometers, and tens monitoring posies are arranged, and manually goes to finish if all use, and labour intensity is very big.Adopting automatic long distance control system, is these industries problems anxious to be solved.
Adopt multimedia communication technology, utilize current public switched telephone network or telephone for special use switching network (PSTN/GSTN), the transmission that can solve image, sound and the data of how far holding monitoring station preferably.Present domestic minority area and department begin the application of multimedia communication technology and realize the public safety technological prevention.But these equipment are the card insert type data acquisition system (DAS) that adopts based on PC mostly, or introduce external stand-alone device.These equipment dependabilities are stable inadequately, and PC needs personnel to safeguard, import equipment is then on the high side, make that the multimedia remote monitoring technique is difficult to popularize and promote.
Domestic existing unit has carried out the technical research of public safety technological prevention of multimedia communication, and it has adopted " PC is embedded " to add the mode of data capture card, finishes the remote image transmission.So-called " PC is embedded " is about to common no dish PC, guides DOS in the mode of electric board, realizes the automatic startup of system.Be characterized in simplifying hardware design, can utilize commercial electric board, solidify DOS and application software, but it is the system of a sealing basically, picture format, host-host protocol etc., incompatible international standard.
Purpose of the present invention is exactly based on the most advanced technology of the time, with the hardware configuration of simplifying most, makes every effort to the highest ratio of performance to price, forms commercial prod, to obtain better economic benefits.
Thinking of the present invention is with reference to International Telecommunication Union's PSTN consensus standard H.324, adopts DSP (digital signal processor) technology to finish the audio frequency and video compressed encoding, utilizes the existing telephone exchange network to realize multimedia communication.The present invention adopts the multimedia terminal of this simple form of distal view picture/voice processing apparatus, image, voice to the remote monitoring website carry out data processing, fully without PC, have realized the non-maintaining and unattended duty of remote monitoring website, the reliability of system is improved, and cost reduces greatly.In Surveillance center, based on personal computer, under the management of application software, realize the communication and the monitoring of multichannel distal view picture, voice messaging, and the management of associated databases, and can realize with the data of international agreement standard and other internetwork message exchanges and share.
Introduce the formation and the course of work of this automatic remote image/language transfer monitoring system involved in the present invention in conjunction with Fig. 1.
As shown in fig. 1, Surveillance center 105 is made up of a cover (or two covers) control center's device 160 (and 161), and control center's device 160 of Surveillance center 105 (and 161) has constituted the automatic transmitting, monitoring device of whole remote image voice with many covers distal view picture/voice processing apparatus 150 of the remote monitoring website 101～103 that is installed in diverse location respectively and the telephone wire 106～110 that links to each other with each device.Distal view picture/voice processing apparatus 150 connects the multi-channel video cam device and multichannel triggers alarm probe device (constituting monitored area 121～122), audio microphone device 124 and telephone wire; Control center's device 160～161 is made of the personal computer based on the application software of Microsoft's Window operating system.
Be example now with remote monitoring website 101.During operate as normal, control center's device 160 and distal view picture/voice processing apparatus 150 all are in armed state, in case guarded region 121 or guarded region 122 have abnormal conditions, trigger input 123 and receive the triggering alarm signal, make distal view picture/voice processing apparatus 150 enter the triggering state immediately, start the video camera head unit and the microphone device 124 of guarded region 121 or guarded region 122, the image that guarded region is gathered and the voice of monitoring station carry out encoding compression processing, and by the telephone number that pre-deposits the control center's device 160 in distal view picture/voice processing apparatus 150, dial to telephony switching gear 104 through telephone wire 106, application is connected with the circuit of control center device 160.
Control center's device 160 of Surveillance center 105 is receiving that telephony switching gear 104 is behind the ringdown that telephone wire 109 is sent here, enter the phone connection status immediately, setting up circuit with remote image/language treating apparatus 150 is connected, and be that the distal view picture/voice processing apparatus 150 of remote monitoring website 101 is checked its identity to the calling party, call the customer data base that control center's device 160 is stored, User Profile information with monitoring station 101, as organization, the address, take precautions against object and time of fire alarming etc. and be presented on the display screen of control center's device 160, and remind the operator on duty of Surveillance center with alarm sound.
Distal view picture/voice processing apparatus 150 is being determined with after Surveillance center 105 sets up circuit and is connected and checks identity, enter delivery status, with multi-channel video image after the compression processing and voice data packing, circuit through telephone wire 106 and telephone wire 109 foundation connects, constantly send to control center's device 160, receive the halt instruction that control center's device 160 of Surveillance center 105 sends until distal view picture/voice processing apparatus 150, finish delivery status, get back to armed state.
After control center's device 160 is received image/speech data that distal view picture/voice processing apparatus 150 sends, enter treatment state, code stream is divided into groups, view data is decoded by software, on the image display window under the Microsoft's Window operating system, show static or live image, audio decoder is also finished by software, and carries out on-the-spot voice restoration by the sound card in control center's device 160, and control center's device 160 carries out hard-disc storage with image/speech data simultaneously.Under treatment state, the operator on duty of Surveillance center can send halt instruction to distal view picture/voice processing apparatus 150 at any time, finishes the delivery status of distal view picture/voice processing apparatus 150, and the circuit that two ends are set up connects disconnection, all gets back to armed state.
Under armed state, the operator on duty of Surveillance center also can send link order through switched telephone network to distal view picture/voice processing apparatus 150 from control center's device 160, start distal view picture/voice processing apparatus 150 and enter delivery status, the image and the sound of inquiry remote monitoring website 101.If the personnel of Surveillance center confirm that to the image of receiving situation is unusual, also remote-controlled distal view picture/voice processing apparatus 150 transmits the view data of specifying camera to gather.
Remote image/language automatic monitoring device involved in the present invention also can be set up subcontrol center device 161, when remote monitoring website 101～103 is met when busy at the number of the control center's device 160 of transfering, can transfer the automatically number of subcontrol center device 161 improves the ability of receiving a crime report of Surveillance center 105.
Control center's device 160 adds that by a personal computer that is equipped with modulator-demodular unit, 24 color displays of 1280 * 1024 resolution and the enough hard drive spaces (2.1G or bigger) of Microsoft's Window operating system, mouse, sound card, 33.6Kbps (or higher rate) special-purpose Control Software constitutes.
The identical hardware circuit that does not have special use of the hardware of control center's device and the hardware of personal computer, its control function is made of special-purpose Control Software fully.
With reference to Fig. 2, the special-purpose Control Software of control center's device 160 can be divided into four major parts by function:
A communication process part.Finishing control center's device is connected and exchanges data with the circuit that distal view picture/voice processing apparatus or higher level supervise control center's device at center, realize communicating to connect and the shaking hands of communication control procedure between the modulator-demodular unit, and the multiplex/demultiplex handled of packets of information.As the modem communication module 220 among Fig. 2, Multiplexing module 221, demultiplexing module 222.
A warning message bag processing section.Finish the back of receiving a crime report to the processing of the packets of information that receives, it comprises the decoding of image/voice, the demonstration of decoding back image and the reduction of voice; Reach decoded storage before image/voice messaging decoding; The feature Data Processing of remote monitoring website, it comprises the screen display of remote monitoring point camera distributing position audio-visual picture and this station state data; The later stage compilation of alarm image is handled; Print processing etc.As decoder module 201 H.263 among Fig. 2, G.723 decoder module 202, and H.263 data memory module 203, and G.723 data memory module 204, image memory module 205, voice storage module 206, image display 207, picture editting's module 208, voice restoration module 209, feature data processing module 210, print module 211, forwarding module 212 etc.
Mutual and the interface section of one personal-machine.Realize system parameter setting, the maintenance and management of The whole control center fixture, and the processing after receiving a crime report.As the module 231 of receiving a crime report among Fig. 2, remote monitoring module 232, system option module 233, the data processing module 234 of receiving a crime report, database management module 235 etc.
A database section.Realization is to the operation note of the subscriber data of remote monitoring website, alert data, control center's device, and the management and the editor of realtime graphic, voice data on file.As the database module among Fig. 2 240.
The each several part coordination of special-purpose Control Software can be achieved as follows function:
(1) image, tone decoding function: finish the H.263 decoding and the decoding of speech audio G.723. of image/video with software.
(2) control function: to the addressing of each distal view picture/voice processing apparatus, the setting and the control of transmission mode.
(3) Presentation Function: show image scene, the data retaining case of website and the triggered time of distal view picture/voice processing apparatus that remote monitoring website camera is gathered.
(4) initiatively make an inspection tour function: the operator on duty of Surveillance center can make an inspection tour the distal view picture/voice processing apparatus of each remote monitoring website by the operation of control center's device, observes the image of any camera.
(5) automatic memory function: the image and the speech data of transmission of receiving the image/voice processing apparatus of remote monitoring website when control center's device of Surveillance center, nobody processing of receiving a crime report in the predetermined time of dealing with emergencies and dangerous situations, control center's device then is stored in the image of receiving in the hard disk with related data automatically, and shows the printed words of alarm logging on screen.
(6) forwarding capability: the image information that the operator on duty of Surveillance center can be transmitted according to the remote monitoring website, judge the field condition of remote monitoring website, by operation, image, voice and the related data of receiving is forwarded to upper level Surveillance center to control center's device.
(7) user data library facility: the user's retaining case document data base that can set up and safeguard each remote monitoring website.
(8) the selection playback function of image voice record: reproduce playback selectively with image, voice data that the remote monitoring website of stored record is gathered.
(9) image processing function: can retrieve, edit and print the image document of recording storage, can also carry out the conversion of pixel format.
(10) privilege feature of control center's device: can be to control center's device setting operation and access code authority.
Whole special-purpose Control Software can be developed with various developing instruments on the platform of Microsoft's Window, realizes above-mentioned various functions.Present embodiment is developed with VC++6.0 MFC and Foxpro6.0 on the Microsoft's Window development platform.
The effect of the distal view picture/voice processing apparatus of remote monitoring website is that the image of collection in worksite, voice are encoded by the standard that the ITU-T of International Telecommunications Union (ITU) proposes, and image, coded voice signal carried out packing data, transfer to control center's device of Surveillance center by modulation-demodulation circuit.
H.324 agreement is the international standard towards the multimedia terminal of switched telephone network.By the ordinary telephone line of telephone-switching network, transmitted image and sound, and relevant data, file and chart mutually.Therefore being on a grand scale of switched telephone network, the user is maximum, and long-term existence is gone down, the exploitation video that meets agreement H.324 and audio coder and be highly significant with meeting distal view picture/voice processing apparatus that the modulation-demodulation circuit of agreement V.34 is connected.H.263 G.723.1 be the H.324 coding and decoding video suggestion of terminal use of conduct that the ITU-T of International Telecommunications Union (ITU) proposes, be the H.324 compression coding and decoding suggestion of the sound signal of terminal use of conduct that the ITU-T of International Telecommunications Union (ITU) proposes.The code decode algorithm of these two encoding and decoding suggestions is very complicated, and operand is big, and this is not that general one-chip computer can be finished.In the selection of the kernel processor chip hardware plan of distal view picture/voice processing apparatus, the present invention has adopted digital signal processor (DSP) scheme, selects for use the digital signal processor with high-speed computation ability to realize the processing capacity of the distal view picture/voice processing apparatus of remote monitoring website.
Distal view picture/voice processing apparatus adopts the hardware configuration of two digital signal processors (DSP), finishes collection, processing and the transmission of image, voice signal under the control of corresponding software.The video signal of camera collection is transformed to data image signal through video image processing circuit earlier, again by first digital signal processor (1DSP) in the device according to ITU-T H.263 agreement finish its compressed encoding; On-the-spot voice or acoustic signal are transformed to digital signal by mould/number conversion (ADC) circuit earlier, again according to ITU-T G.723.1 agreement carry out voice compression coding by second digital signal processor (2DSP) in the device.Second digital signal processor (2DSP) of processed voice compression also is responsible for the master control function of this distal view picture/voice processing apparatus, comprise the initialization of device, trigger the detection of alerting signal, video switch switches, the systematic parameter of this device is called, communication process, packing data and through instruction execution of control center's device that switched telephone network is sent here etc.Like this, distal view picture/voice processing apparatus has constituted one simply can be through the telephone wire images of telephone-switching network, the multimedia terminal of voice messaging, the monitoring of realization distal view picture, voice.
The automatic transmitting, monitoring device of this remote image/language involved in the present invention can be widely used in fields such as public safety technological prevention, electric power, post and telecommunications, industrial and mineral, medical treatment, traffic.
Below in conjunction with synoptic diagram and embodiment the present invention is further described.
Fig. 1 connects schematic block diagram for automatic remote image/language transfer monitoring system;
Fig. 2 is that control center's device Control Software constitutes block diagram;
Fig. 3 is distal view picture/voice processing apparatus block scheme.
This embodiment is by constituting with lower device:
Multi-channel video selecting arrangement 31: accept the multichannel selection control signal that digital signal processor (2DSP) chip in master control and the sound encoding device 36 produces, the gating input that is produced switching signal control multi-channel video input signal by multi-channel video selecting arrangement 31 is switched, and the vision signal of gating input is sent into video signal collective treating apparatus 34.
Multi-channel video selecting arrangement 31 has 8 road video inputs, links to each other with 8 cameras, can receive the vision signal of camera; The control input end of this device links to each other with the control line of master control and sound encoding device 36, enable signal and 3 scale-of-two eight of accepting second digital signal processor (2DSP) in master control and the sound encoding device 36 select a signal, carry out the switching of 8 road video inputs vision signals; The output terminal of this device links to each other with video signal collective processor 34, the camera video signal of one of output 8 road video input signals through selecting to switch.
Video signal collective treating apparatus 34: the vision signal to the input of multi-channel video selecting arrangement 31 gatings is handled, convert analog video signal to the YUV4:2:2 digital image format, the video digital images data after the acquisition process are stored in the view data storing apparatus 35.The signal format of the image of being changed, data layout and size, by with I2C bus that image code processing device 37 is connected on received control command determine.After one two field picture of one tunnel vision signal of 34 pairs of gating inputs of video signal collective treating apparatus carries out acquisition process, the video digital images data of 37 pairs of acquisition process of notice image code processing device are further processed, and prepare the vision signal of next road gating input is carried out acquisition process.
The video signal input terminal of video signal collective treating apparatus 34 links to each other with the VT of multi-channel video selecting arrangement 31, receives its vision signal of sending here and handles; The DOL Data Output Line of this device links to each other with view data storing apparatus 35, and the Digital Image Data after the analog video signal conversion process of input is sent into storage in the view data storing apparatus 35; The mark output end of this device links to each other with picture coding device 37, notifies image code processing device 37 with the marking signal that this device is finished dealing with to an image frame grabber of one tunnel vision signal; The control input end of this device links to each other with image code processing device 37, comprising the control line that resets, I2C bus and clock control line etc., accepts the control signal of second digital signal processor (2DSP) in the image code processing device 37.The I2C bus of second digital signal processor (2DSP) by linking to each other carried out 34 pairs of analog video signals of video signal collective treating apparatus the control datas such as signal format, data layout and size of image change and sent into video signal collective treating apparatus 34.
Image code processing device 37: with first digital signal processor (1DSP) is core, the frame image data that video signal collective treating apparatus 34 is stored in the view data storing apparatus 35 takes out, according to ITU-T agreement H.263, this frame image data is carried out Real Time Compression, generate the packed data of the H.263 CIF form of piece image, send into this packed data in the view data memory 35 temporary again.This image code processing device 37 is by being connected in the I2C bus of video acquisition treating apparatus 34, and with the conversion requirement of vision signal, as signal format, control commands such as image data format and picture size are delivered to video acquisition treating apparatus 34.
First digital signal processor (1DSP) in the image code processing device 37 is connected with second digital signal processor (2DSP) in master control and the sound encoding device 36 by serial port, second digital signal processor (2DSP) in finishing piece image compression back notice master control and sound encoding device 36, and according to the order of second digital signal processor (2DSP), the view data after will compressing in the suitable moment is sent into second digital signal processor (2DSP) and is carried out packing data.
Image code processing device 37 links to each other with view data storing apparatus 35 by FPDP, the address port of first digital signal processor (1DSP), and by first digital signal processor (1DSP) by the control line realization that links to each other with view data storing apparatus 35 read/write and sheet selected control system to view data storing apparatus 35; Image code processing device 37 links to each other with video signal collective treating apparatus 34 with control line by the data line of first digital signal processor (1DSP), realizes the control of video signal collective treating apparatus 34 and the storage of the view data after 34 pairs of analog video image signals processing of video signal collective treating apparatus.
View data storing apparatus 35: static random memory (SRAM) group storage is through frame YUV4:2:2 video digital images data of video signal collective treating apparatus 34 acquisition process, and the view data H.263CIF of 8 width of cloth after image code processing device 37 encoding compression.
The control line of first digital signal processor (1DSP) in the control line of view data storing apparatus 35 and address wire and the image code processing device 37 links to each other with address port, its data line links to each other with first digital signal processor (1DSP) of image code processing device 37 and the data of video signal collective treating apparatus 34, according to the steering order of first digital signal processor (1DSP), finish the storage of view data.
Master control and sound encoding device 36: with second digital signal processor (2DSP) is core, is responsible for whole distal view picture/voice processing apparatus master routine control, and the speech sounds signal is carried out encoding process.After whole device powers up, primary control program is monitored flip flop equipment 32 and line interface unit 38, in case flip flop equipment 32 occurring triggers, or receive the instruction of control center's device from line interface unit 38, send multi-channel video from second digital signal processor (2DSP) immediately and select signal, make multi-channel video selecting arrangement 31 switch to the camera position of trigger pip correspondence, the vision signal of corresponding gamma camera is sent into video signal collective treating apparatus 34 carry out acquisition process.Second digital signal processing device (2DSP) is sent video switch successively and is switched coded signal, makes the vision signal of multichannel camera acquisition all obtain handling; Master control also is connected with Surveillance center by line interface unit 38 simultaneously with sound encoding device 36, and the user profile data of the telephone number of its connection and this distal view picture/voice processing apparatus are taken out from the read-only storage of electrically-erasable (EEPROM) that second digital signal processor (2DSP) is connected.In case line interface unit 38 and Surveillance center's successful connection, first digital signal processor (1DSP) in second digital signal processor (2DSP) the notice image code processing device 37 is sent into compressing image data, 8 width of cloth CIF images and the user profile packing data of the compressed processing that will send here through image code processing device 37, data via line interface arrangement 38 after the packing is sent, the on-the-spot voice that while second digital processing unit (2DSP) is sent voice collecting analog-digital commutator 33 here, sound digital signal according to ITU-T G.723.1 protocol requirement compress processing, the audio digital signals of compressed processing also via line interface arrangement 38 is sent to Surveillance center.
Master control and sound encoding device 36 are under image/speech data delivery status, in case receive the halt instruction that Surveillance center sends from line interface unit 38, master control is closed relevant device with second digital signal processing device (2DSP) in the sound encoding device 36, enters armed state.
Master control and sound encoding device 36 link to each other with multi-channel video selecting arrangement 31 by the control line of second digital signal processor (2DSP), and provide eight to select a control signal and enable signal for it; Master control and sound encoding device 36 link to each other with image code processing device 37 by the serial port and the interrupt control line of second digital signal processor (2DSP), realize that the data between two digital signal processors connect and control; Master control and sound encoding device 36 link to each other with voice collecting analog-digital commutator 33 by another serial port of second digital signal processor (2DSP), realize control and Data Receiving to voice collecting analog-digital commutator 33; Master control and sound encoding device 36 link to each other with flip flop equipment 32 with data line by the control line of second digital processing unit (2DSP), realize the control of flip flop equipment 32 and the reception of trigger pip; Master control and sound encoding device 36 link to each other with line interface unit 38 by control line, address wire, the data line of second digital signal processor (2DSP), realize the data communication of via line interface arrangement 38 and switched telephone network.
Flip flop equipment 32: flip flop equipment comprises photoelectrical coupler and signal isolation circuit, constitutes input of 8 tunnel area triggering and 1 tunnel non-area triggering input.Which area triggering input master control and sound encoding device 36 is determined to trigger from, then preferentially the video input is switched on the vision signal that video camera that this zone is equipped with gathers, and then switches to other video cameras successively.If be not provided with and use the area triggering signal, 36 of master control and sound encoding devices carry out the switching controls of each road camera signal successively since No. 1 video camera.
Voice collecting analog-digital commutator 33: finish the digitizing of the on-the-spot speech sounds signal that microphone picks up.On-the-spot speech sounds is amplified by amplifying circuit, carries out analog to digital conversion again, forms second digital signal processor (2DSP) that pulse-code modulation (PCM) signal is sent into master control and sound encoding device 36.
Voice collecting analog-digital commutator 33 has one road microphone input end, can connect microphone input speech signal or on-the-spot aural signal; Voice collecting analog-digital commutator 33 links to each other with the serial port of second digital signal processor (2DSP) of master control and sound encoding device 36, realizes transmitting and the instruction transmission with the data of second digital signal processor (2DSP).
Line interface unit 38: the realization of line interface unit employing modulator-demodular unit (33.6Kbps) chipset is connected with telephone line, and usefulness common interface chip (UART) realization second digital signal processor (2DSP) is connected with modulator-demodular unit.
Two line ends of line interface unit 38 link to each other with telephone wire, realize the data communication with switched telephone network; Line interface unit 38 also links to each other with address wire, data line and the control line of second digital signal processor (2DSP) of master control and sound encoding device 36, finishes the transmission of data and control command between the two.
In the embodiments of the invention, the digital signal processor (1DSP) that carries out encoding video pictures adopts the floating-point ADSP21061 chip of U.S. AD company, and it is fit to handle high speed voice signal and high speed image signal, has and the ability of supporting the processor parallel processing.The characteristics of this digital signal processor (DSP) chip mainly contain: the first, have the arithmetic element of three independences and energy parallel work-flow; The second, its data register array comprises 32 40 data register; The 3rd, can carry out the monocycle and get and refer to and the operation of fetch operand; The 4th, it contains a high performance order register (Cache); The 5th, it possesses independently two and can walk abreast the address generator of program storage and data memory space addressing address is provided; The 6th, static storage (SRAM) has the twoport managerial ability in its sheet; The 7th, possess the addressing capability of the external memory storage of 4M byte; The 8th, have the ability of managing 10 immediate data accesses (DMA) passage independently in the sheet; The 9th, can pass through its 16 or 32 interfaces, by the internal storage of the direct read/write ADSP21061 of system's primary processor; The tenth, support the bus of six homologous series chips and a primary processor directly to articulate; The 11, possess two independently synchronous serial interfaces.
In the embodiment of the invention, the digital signal processor (2DSP) of finishing voice coding and master control function adopts the fixed point ADSP2181 chip of U.S. AD company, this is a chip microprocessor of optimizing for digital signal processing specially, its basic structure comprises arithmetic logical unit, data address generator, the program queue management device, also expand inside immediate data access (IDMA) port that 16 bits are arranged simultaneously, byte immediate data access (DMA) port of 8 bits, 2 serial ports, programmable timer, sign I/O (I/O) pin, and the interrupt response ability that expands.
For the realization of other function square frames in distal view picture/voice processing apparatus of the present invention, can adopt prior art to solve according to actual conditions.
The performance that embodiment had of the invention described above is as follows.
Video encoder: meet H.263 standard of ITU-T.
Audio coder: meet G.723.1 standard of ITU-T.
Picture format and resolution: CIF352 * 288 or QCIF176 * 144 color/monochrome compatibilities.CIF is the rest image form, and QCIF is the live image form.
Video standard and input format: 8 tunnel (or 16 tunnel) simulating signal (PAL/NTSC is optional) input, 75 (/ 1VP-P.
The audio frequency input: one tunnel simulating signal, 600 (/-the 74dB input.
Report to the police and import: one tunnel non-area triggering signal input can adapt to NC/NO or active direct current.The input of 8 tunnel area triggering signals.
Image and transfer voice mode:
(1) when distal view picture/voice data processing apparatus is received the area triggering signal, first width of cloth image that at first surveyed area trigger pip, and the automatic transmission camera acquisition corresponding with this zone arrives, and then send the image of handling from other camera acquisition.During CIF form rest image, image rate is greater than 1 frame/2 second.
(2) the remote-controlled startup distal view of control center's device picture/voice processing apparatus is maked an inspection tour the live image of the QCIF form of a certain road video camera correspondence, 3～5 frame/seconds of image rate, or CIF form rest image.
From triggering begin to time that control center's device shows first width of cloth image less than 25 seconds, in transmitted image, can select to transmit on-the-spot sound.
Public telephone network inserts, telephone line interface RJ11.
Data rate: built-in 33.6kpbs modulator-demodular unit, remote transmission, no distance limit.
The EEPROM saved system is provided with parameter.Be used to deposit telephone number and user profile.
Distal view picture/voice processing apparatus is before the user uses, user data in the electrically-erasable memory (EEPROM) that its master control and voice processing apparatus connected is for empty, even hardware has connected like this, also can't carry out the function of whole device, must be after distal view picture/voice processing apparatus carries out dial-up connection by Surveillance center, Surveillance center transmits data necessary to far-end/voice processing apparatus, as Surveillance center's telephone number, the number of cameras that the remote monitoring website is equipped with, the image modulation signal of taking in, and the user number of this remote monitoring site map picture/voice processing apparatus etc.After the multi-section distal view picture/voice processing apparatus of different monitoring website and Surveillance center register, promptly constitute a plurality of monitoring stations, each monitoring station all has its special-purpose telephone number, form the communication network of multiple spot with Surveillance center to a bit, when actual generation image/voice signal is communicated by letter, be point-to-point communication mode.Also can be equipped with the subcontrol center device, meet when busy, can transfer the subcontrol center device when the distal view picture/voice processing apparatus of monitoring station is communicated with the main control centre device in dialing.
It is top that what narrate is a kind ofly to realize that remote image/language transmits, an embodiment of the distal view picture/voice processing apparatus of control.Be not difficult to find out and under thinking of the present invention and scope, multiple embodiments can be arranged.
Claims (9)
1, a kind of automatic remote image/language transfer monitoring system, by one or more sets control center's devices that are contained in Surveillance center and a plurality of distal view picture/voice processing apparatus that are installed on different remote monitoring websites respectively, and control center's device and the distal center image/voice processing apparatus formation that links to each other with the telephone wire of switched telephone network respectively, it is characterized in that it follows the H.324 consensus standard of International Telecommunications Union (ITU) (ITU-T), adopt digital signal processor (DSP) technology to realize the compressed encoding of image video signal and voice audio signals, utilize switched telephone network, image voice messaging behind the compressed encoding is sent to the online specific user of telephone exchange, the specific user is after receiving the image voice messaging of compressed encoding, can carry out uncompressed encoding to it according to agreement H.324, reproduce original image and voice.
2, according to the automatic remote image/language transfer monitoring system of claim 1, it is characterized in that distal view picture/voice processing apparatus adopts the hardware configuration of two digital signal processors (DSP), finishes collection, processing and the transmission of image, voice signal under the control of corresponding software.
3, according to the automatic remote image/language transfer monitoring system of claim 1, it is characterized in that the special-purpose Control Software of control center's device can be divided into by function:
Communication process part: finish control center's device and be connected and exchanges data with the circuit that distal view picture/voice processing apparatus or higher level supervise control center's device at center, realize communicating to connect and the shaking hands of communication control procedure between the modulator-demodular unit, and the multiplex/demultiplex handled of packets of information;
A warning message bag processing section: finish the back of receiving a crime report to the processing of the packets of information that receives, it comprises the decoding of image/voice, the demonstration of decoding back image and the reduction of voice; Reach decoded storage before image/voice messaging decoding; The feature Data Processing of remote monitoring website, it comprises the screen display of remote monitoring point camera distributing position audio-visual picture and this station state data; The later stage compilation of alarm image is handled; Print processing etc.; Mutual and the interface section of one personal-machine: realize system parameter setting, the maintenance and management of The whole control center fixture, and the processing after receiving a crime report;
A database section: realize subscriber data, the alert data to the remote monitoring website, the operation note of control center's device, and the management and the editor of realtime graphic, voice data on file.
4, according to claim 1 and 2 described automatic remote image/language transfer monitoring systems, it is characterized in that distal view picture/voice processing apparatus comprises multi-channel video selecting arrangement 31, it accepts the multichannel selection control signal that digital signal processor (2DSP) chip in master control and the sound encoding device 36 produces, the gating input that is produced switching signal control multi-channel video input signal by multi-channel video selecting arrangement 31 is switched, and the vision signal of gating input is sent into the video signal collective treating apparatus.
5, according to claim 1 and 2 described automatic remote image/language transfer monitoring systems, it is characterized in that the image code processing device 37 in distal view picture/voice processing apparatus is a core with first digital signal processor (1DSP), the frame image data that video signal collective treating apparatus 34 is stored in the view data storing apparatus 35 takes out, according to ITU-T agreement H.263, this frame image data is carried out Real Time Compression, generate the packed data of the H.263 CIF form of piece image, send into this packed data in the view data memory 35 temporary again.
6, according to claim 1 and 2 described automatic remote image/language transfer monitoring systems, it is characterized in that master control and sound encoding device 36 in distal view picture/voice processing apparatus are core with second digital signal processor (2DSP), be responsible for whole distal view picture/voice processing apparatus master routine control, and the speech sounds signal is carried out encoding process; Master control and sound encoding device 36 link to each other with flip flop equipment 32 with data line by the control line of second digital processing unit (2DSP), realize the control of flip flop equipment 32 and the reception of trigger pip; Master control and sound encoding device 36 link to each other with line interface unit 38 by control line, address wire, the data line of second digital signal processor (2DSP), realize the data communication of via line interface arrangement 38 and switched telephone network.
7, according to claim 1 and the 2 described remote image/sounds automatic transmission monitor system of speaking, it is characterized in that the flip flop equipment 32 in distal view picture/voice processing apparatus comprises photoelectrical coupler and signal isolation circuit, constitute input of 8 tunnel area triggering and 1 tunnel non-area triggering input; The area triggering output terminal of flip flop equipment 32 is connected to the data line of second digital signal processor (2DSP) in master control and the sound encoding device 36, non-area triggering output terminal single line links to each other with second digital signal processor (2DSP), with discriminate regions trigger pip and non-area triggering signal; The control input end of flip flop equipment 32 links to each other with the control output end of second digital signal processing dress device (2DSP), accepts the enable control of second digital signal processor (2DSP) to flip flop equipment 32.
8,, it is characterized in that voice collecting analog-digital commutator 33 in distal view picture/voice processing apparatus finishes the digitizing of the on-the-spot speech sounds signal that microphone picks up according to claim 1 and 2 described automatic remote image/language transfer monitoring systems; On-the-spot speech sounds is amplified by amplifying circuit, carries out analog to digital conversion again, forms second digital signal processor (2DSP) that pulse-code modulation (PCM) signal is sent into master control and sound encoding device 36; Voice collecting analog-digital commutator 33 has one road microphone input end, can connect microphone input speech signal or on-the-spot aural signal; Voice collecting analog-digital commutator 33 links to each other with the serial port of second digital signal processor (2DSP) of master control and sound encoding device 36.
9, according to claim 1 and 2 described automatic remote image/language transfer monitoring systems, it is characterized in that line interface unit 38 in distal view picture/voice processing apparatus adopts modulator-demodular unit (33.6Kbps) chipsets to realize and being connected of telephone line, with being connected of common interface chip (UART) realization second digital signal processor (2DSP) and modulator-demodular unit; Two line ends of line interface unit 38 link to each other with telephone wire, realize the data communication with switched telephone network; Line interface unit 38 also links to each other with address wire, data line and the control line of second digital signal processor (2DSP) of master control and sound encoding device 36, finishes the transmission of data and control command between the two.
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| CN00104208A CN1116766C (en) | 2000-03-10 | 2000-03-10 | Automatic remote image/language transfer monitoring system |
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| CN00104208A CN1116766C (en) | 2000-03-10 | 2000-03-10 | Automatic remote image/language transfer monitoring system |
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| CN1116766C CN1116766C (en) | 2003-07-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031299A1 (en) * | 2006-09-07 | 2008-03-20 | Xiamen Rico Technology Co., Ltd | A memory power line network camera |
| CN100385430C (en) * | 2003-08-15 | 2008-04-30 | 夏志坚 | High-resolution-ratio video-frequency network control system |
| CN100395747C (en) * | 2003-11-01 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Network video data replay system and method |
| CN101409871B (en) * | 2008-11-17 | 2013-01-23 | 宇龙计算机通信科技(深圳)有限公司 | Long-distance remote-control method, system and remote-control device |
| CN104080031A (en) * | 2013-03-28 | 2014-10-01 | 联想(北京)有限公司 | Signal processing method and electronic equipment |
| CN107071125A (en) * | 2017-05-12 | 2017-08-18 | 深圳市悠响声学科技有限公司 | The method that intelligent camera auto dialing is realized using high in the clouds |
-
2000
- 2000-03-10 CN CN00104208A patent/CN1116766C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385430C (en) * | 2003-08-15 | 2008-04-30 | 夏志坚 | High-resolution-ratio video-frequency network control system |
| CN100395747C (en) * | 2003-11-01 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Network video data replay system and method |
| WO2008031299A1 (en) * | 2006-09-07 | 2008-03-20 | Xiamen Rico Technology Co., Ltd | A memory power line network camera |
| CN101409871B (en) * | 2008-11-17 | 2013-01-23 | 宇龙计算机通信科技(深圳)有限公司 | Long-distance remote-control method, system and remote-control device |
| CN104080031A (en) * | 2013-03-28 | 2014-10-01 | 联想(北京)有限公司 | Signal processing method and electronic equipment |
| CN107071125A (en) * | 2017-05-12 | 2017-08-18 | 深圳市悠响声学科技有限公司 | The method that intelligent camera auto dialing is realized using high in the clouds |
| CN107071125B (en) * | 2017-05-12 | 2020-04-14 | 深圳市物朗智能科技有限公司 | Method for realizing automatic dialing of intelligent camera by using cloud |
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|---|---|
| CN1116766C (en) | 2003-07-30 |
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