CN1116766C - Automatic remote image/language transfer monitoring system - Google Patents
Automatic remote image/language transfer monitoring system Download PDFInfo
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- CN1116766C CN1116766C CN00104208A CN00104208A CN1116766C CN 1116766 C CN1116766 C CN 1116766C CN 00104208 A CN00104208 A CN 00104208A CN 00104208 A CN00104208 A CN 00104208A CN 1116766 C CN1116766 C CN 1116766C
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Abstract
The present invention relates to an automatic remote image/speech transmission monitoring system, which is composed of a set of or two sets of control center devices arranged on a monitoring center and a plurality of remote image/speech processing devices which are respectively arranged on different remote monitoring stations, wherein the control center devices and the remote image/speech processing devices are respectively connected with telephone lines of a telephone switching network. Image and speech signals collected in field are transmitted to the control center devices of the monitoring center through telephone lines after compressed and encoded by the remote image/speech processing devices, the compressed encoding image and speech data transmitted through the telephone lines are decompressed by the control center to redisplay remote images and sound.
Description
Technical field
The present invention relates to the automatic transmitting, monitoring device of a kind of remote image and voice, particularly the image of remote monitoring station collection in worksite and Speech Signal Compression coding is after telephone wire is delivered to control centre's device of Surveillance center, control centre'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 centre's device and loudspeaker arrangement.
Background technology
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 point immediately, this has brought adverse factors to dealing carefully with of incident.Security personnel or police press for when receiving alarm signal and can directly obtain image scene and sound, provide reference for handling accident accurately and timely.
At industrial departments such as oil, electric power, chemical industry, mines, 24 hours unattended operations will be carried out in a lot of facilities and post, finish such as remote viewing, remote measurement, remote control, the multimedia message 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 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 designs, 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.
Summary of the invention
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 switching network to realize multimedia communication.The present invention adopts the multimedia terminal of distal view picture and this simple form of 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 information exchanges and share.
Introduce the formation and the course of work of this remote image and the automatic transmission monitor system of voice 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 centre's device 160 (and 161), and control centre's device 160 of Surveillance center 105 (and 161) reaches the telephone wire 106～110 that links to each other with each device with many covers distal view picture of the remote monitoring website 101～103 that is installed in diverse location respectively with voice processing apparatus 150 and constituted the automatic transmitting, monitoring device of whole remote image voice.The distal view picture be connected with voice processing apparatus 150 multi-channel video cam device and multichannel trigger alarm probe device (constituting monitored area 121～122), audio microphone device 124 and telephone wire; Control centre'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 centre's device 160 and distal view picture and 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 and 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 centre's device 160 in distal view picture and voice processing apparatus 150, dial to telephony switching gear 104 through telephone wire 106, application is connected with the circuit of control centre device 160.
Control centre's device 160 of Surveillance center 105 is receiving that telephony switching gear 104 is behind the bell signal that telephone wire 109 is sent here, enter the phone connection status immediately, setting up circuit with remote image with voice processing apparatus 150 is connected, and be that the distal view picture of remote monitoring website 101 and voice processing apparatus 150 are checked its identity to the calling party, call the customer data base that control centre'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 centre's device 160, and remind the operator on duty of Surveillance center with alarm sound.
Distal view picture and voice processing apparatus 150 are 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 centre's device 160, receive the halt instruction that control centre's device 160 of Surveillance center 105 sends until distal view picture and voice processing apparatus 150, finish delivery status, get back to armed state.
After control centre's device 160 is received the image and speech data that distal view picture and voice processing apparatus 150 send, 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 centre's device 160, and control centre's device 160 carries out hard-disc storage with image and speech data simultaneously.Under treatment state, the operator on duty of Surveillance center can send halt instruction to distal view picture and voice processing apparatus 150 at any time, finishes the delivery status of distal view picture and 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 and voice processing apparatus 150 from control centre's device 160, start distal view picture and 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 and voice processing apparatus 150 transmit the view data of specifying camera to gather.
Remote image involved in the present invention and voice automatic monitoring device 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 centre'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 centre's device 160 adds that by a personal computer that is equipped with modulator-demodulator, 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 centre's device and the hardware of personal computer, its controlled function is made of special-purpose Control Software fully.
With reference to Fig. 2, the special-purpose Control Software of control centre's device 160 can be divided into four major parts by function:
A communication process part.Finishing the circuit that control centre's device and distal view picture and voice processing apparatus or higher level supervise control centre's device at center is connected and exchanges data, realize communicating to connect and the shaking hands of communication control procedure between the modulator-demodulator, 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 and voice, the demonstration of decoding back image and the reduction of voice; Reach decoded storage before image and the 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 centre'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) controlled function: to the addressing of each distal view picture and 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 and 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 and the voice processing apparatus of each remote monitoring website by the operation of control centre's device, observes the image of any camera.
(5) automatic memory function: image and the speech data of receiving the transmission of the image of remote monitoring website and voice processing apparatus when control centre's device of Surveillance center, nobody processing of receiving a crime report in the predetermined time of dealing with emergencies and dangerous situations, control centre'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 centre'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 record storage, can also carry out the conversion of pixel format.
(10) privilege feature of control centre's device: can be to control centre'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 Foxpro 6.0 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 proposes, and image, coded voice signal carried out packing data, transfer to control centre'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.Being on a grand scale of switched telephone network, the user is maximum, therefore 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 and the 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 proposes, be the H.324 compression coding and decoding suggestion of the audio signal of terminal use of conduct that the ITU-T of International Telecommunications Union 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 monolithic computer can be finished.In the selection of the kernel processor chip hardware plan of distal view picture and 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 distal view picture of remote monitoring website and the processing capacity of voice processing apparatus.
Distal view picture and voice processing apparatus adopt the hardware configuration of two digital signal processors (DSP), finish 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 and voice processing apparatus, comprise the initialization of device, trigger the detection of alarm signal, video switch switches, the system parameters of this device is called, communication process, packing data and through instruction execution of control centre's device that switched telephone network is sent here etc.Like this, distal view picture and voice processing apparatus have 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 involved in the present invention and voice 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 schematic diagram and embodiment the present invention is further described.
Description of drawings
Fig. 1 is that remote image is connected schematic block diagram with the automatic transmission monitor system of voice;
Fig. 2 is that control centre's device Control Software constitutes block diagram;
Fig. 3 is distal view picture and voice processing apparatus block diagram.
This embodiment is by constituting with lower device:
Multi-channel video choice device 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 choice device 31 is switched, and the vision signal of gating input is sent into video signal collective processing unit 34.
Multi-channel video choice device 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 binary systems 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 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 processing unit 34: the vision signal to the input of multi-channel video choice device 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 format 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 processing unit 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 processing unit 34 links to each other with the VT of multi-channel video choice device 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 DID 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 processing unit the control datas such as signal format, data format and size of image change and sent into video signal collective processing unit 34.
Image code processing device 37: with first digital signal processor (1DSP) is core, the frame image data that video signal collective processing unit 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 processing unit 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 processing unit 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 processing unit 34 with control line by the data wire of first digital signal processor (1DSP), realizes the control of video signal collective processing unit 34 and the storage of the view data after 34 pairs of analog video image signals processing of video signal collective processing unit.
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 processing unit 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 wire links to each other with first digital signal processor (1DSP) of image code processing device 37 and the data of video signal collective processing unit 34, according to the control command 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 the control of whole distal view picture and voice processing apparatus main program, and the speech sounds signal is carried out encoding process.After whole device powers up, primary control program is monitored trigger equipment 32 and line interface unit 38, in case trigger equipment 32 occurring triggers, or receive the instruction of control centre'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 choice device 31 switch to the camera position of triggering signal correspondence, the vision signal of corresponding gamma camera is sent into video signal collective processing unit 34 carry out acquisition process.Second digital signal processing device (2DSP) is sent video switch successively and is switched code 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 and 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 and 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 choice device 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 interruption controls 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 trigger equipment 32 with data wire by the control line of second digital processing unit (2DSP), realize the control of trigger equipment 32 and the reception of triggering signal; Master control and sound encoding device 36 link to each other with line interface unit 38 by control line, address wire, the data wire of second digital signal processor (2DSP), realize the data communication of via line interface arrangement 38 and switched telephone network.
Trigger equipment 32: trigger 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.
Trigger equipment 32 has 8 tunnel area triggering inputs and 1 tunnel non-area triggering input, can connect to trigger probe, receives triggering signal; The area triggering output of trigger equipment 32 is connected to the data wire of second digital signal processor (2DSP) in master control and the sound encoding device 36, non-area triggering output single line links to each other with second digital signal processor (2DSP), with discriminate regions triggering signal and non-area triggering signal; The control input end of trigger 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 trigger equipment 32.
Voice collecting analog-digital commutator 33: finish the digitlization 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, can connect microphone input speech signal or on-the-spot audible 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-demodulator (33.6Kbps) chipset is connected with telephone line, and usefulness common interface chip (UART) realization second digital signal processor (2DSP) is connected with modulator-demodulator.
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 wire 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 command 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 addressability 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 speech 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 pattern of the input: 8 tunnel (or 16 tunnel) analog signal (PAL/NTSC is optional) input, 75 (/ 1VP-P.
The audio frequency input: one tunnel analog 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 and voice data processing apparatus are received the area triggering signal, surveyed area triggering signal at first, and send first width of cloth image that the camera acquisition corresponding with this zone arrives automatically, and then send from the image of other camera acquisition processing.During CIF form rest image, image rate is greater than 1 frame/2 second.
(2) control centre's device remote-controlled startup distal view picture and voice processing apparatus are 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 centre'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-demodulator, 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 and voice processing apparatus are 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 of different monitoring website and voice processing apparatus 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.
Top narrate be a kind ofly realize that remote image and voice transmit, the distal view of control and an embodiment of voice processing apparatus.Be not difficult to find out and under thinking of the present invention and scope, multiple embodiments can be arranged.
Claims (8)
1, the automatic transmission monitor system of a kind of remote image and voice, by one or more sets control centre's devices that are contained in Surveillance center and a plurality of distal view pictures and the voice processing apparatus that are installed on different remote monitoring websites respectively, and control centre's device and distal center image and the voice processing apparatus formation that links to each other with the telephone wire of switched telephone network respectively, it follows the H.324 consensus standard of International Telecommunications Union, adopt the 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, it is characterized in that the special-purpose Control Software of control centre's device can be divided into by function:
Communication process part: finish the circuit that control centre's device and distal view picture and voice processing apparatus or higher level supervise control centre's device at center and be connected and exchanges data, realize communicating to connect and the shaking hands of communication control procedure between the modulator-demodulator, 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 and voice, the demonstration of decoding back image and the reduction of voice; Reach decoded storage before image and the 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 centre's device, and the management and the editor of realtime graphic, voice data on file.
2, according to the remote image and the automatic transmission monitor system of voice of claim 1, it is characterized in that distal view picture and voice processing apparatus adopt the hardware configuration of two digital signal processor DSPs, finish collection, processing and the transmission of image, voice signal under the control of corresponding software.
3, according to claim 1 or 2 described remote images and the automatic transmission monitor system of voice, it is characterized in that distal view picture and voice processing apparatus comprise multi-channel video choice device (31), it accepts the multichannel selection control signal that the 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 choice device (31) is switched, and the vision signal of gating input is sent into the video signal collective processing unit.
4, the automatic transmission monitor system of remote image according to claim 1 and 2 and voice, it is characterized in that the image code processing device (37) in distal view picture and the voice processing apparatus is a core with the first digital signal processor 1DSP, the frame image data that video signal collective processing unit (34) is stored in the view data storing apparatus (35) takes out, according to the ITU-TH.263 agreement, this frame image data is carried out Real Time Compression, generate the packed data of the H.263CIF form of piece image, send into this packed data in the view data memory (35) temporary again.
5, the automatic transmission monitor system of remote image according to claim 1 and 2 and voice, it is characterized in that master control and sound encoding device (36) in distal view picture and the voice processing apparatus are core with the second digital signal processor 2DSP, be responsible for the control of whole distal view picture and voice processing apparatus main program, and the speech sounds signal is carried out encoding process; Master control and sound encoding device (36) link to each other with trigger equipment (32) with data wire by the control line of the second digital processing unit 2DSP, realize the control of trigger equipment (32) and the reception of triggering signal; Master control and sound encoding device 36 link to each other with line interface unit (38) by control line, address wire, the data wire of the second digital signal processor 2DSP, realize the data communication of via line interface arrangement (38) and switched telephone network.
6, the automatic transmission monitor system of remote image according to claim 1 and 2 and voice, it is characterized in that the trigger equipment (32) in distal view picture and the 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 of trigger equipment (32) is connected to the data wire of the second digital signal processor 2DSP in master control and the sound encoding device (36), non-area triggering output single line links to each other with the second digital signal processor 2DSP, with discriminate regions triggering signal and non-area triggering signal; The control input end of trigger equipment (32) links to each other with the control output end of second Digital Signal Processing dress device 2DSP, accepts the enable control of the second digital signal processor 2DSP to trigger equipment (32).
7, the automatic transmission monitor system of remote image according to claim 1 and 2 and voice is characterized in that voice collecting analog-digital commutator (33) in distal view picture and the voice processing apparatus finishes the digitlization 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 the 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, can connect microphone input speech signal or on-the-spot audible signal; Voice collecting analog-digital commutator (33) links to each other with the serial port of the second digital signal processor 2DSP of master control and sound encoding device (36).
8, the automatic transmission monitor system of remote image according to claim 1 and 2 and voice, it is characterized in that line interface unit (38) in distal view picture and the voice processing apparatus adopts modulator-demodulator 33.6Kbps chipset to realize and being connected of telephone line, realize being connected of the second digital signal processor 2DSP and modulator-demodulator with common interface chip UART; 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 wire and the control line of the second digital signal processor 2DSP of master control and sound encoding device (36), finishes the transmission of data and control command between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00104208A CN1116766C (en) | 2000-03-10 | 2000-03-10 | Automatic remote image/language transfer monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00104208A CN1116766C (en) | 2000-03-10 | 2000-03-10 | Automatic remote image/language transfer monitoring system |
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| Publication Number | Publication Date |
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| CN1269575A CN1269575A (en) | 2000-10-11 |
| CN1116766C true CN1116766C (en) | 2003-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN00104208A Expired - Fee Related CN1116766C (en) | 2000-03-10 | 2000-03-10 | Automatic remote image/language transfer monitoring system |
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| CN (1) | CN1116766C (en) |
Families Citing this family (6)
| 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 |
| CN101141631A (en) * | 2006-09-07 | 2008-03-12 | 厦门瑞科技术发展有限公司 | Storage type 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 |
| 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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