CN1447540A - Monitoring alarm system for locating position and image transmission - Google Patents
Monitoring alarm system for locating position and image transmission Download PDFInfo
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Abstract
A system includes the mobile terminals, the communication base stations, the monitoring center and global position satellite. The vehicle carried nevigation terminal in the mobile terminal is composed of the GPS antenna, the OEM receiving border, CPU, the storage for digital map, the interface for IC card, the display memry, the sequential control circuit, the and the IDEN handset interface circuit etc. The vehicle carried transmission terminal consists of the camera head, the image collection chip as well as the said sequential control circuit, CPU, the storage for images. The vehicle carried analog transmission terminal includes the GPS antenna, the OEM receiving border, CPU, the data storage, modem and the broadcasting station interface circuit.
Description
Technical field
The present invention relates to satellite location and monitor over public telecommunication network and image transmission warning system, be particularly related to a kind ofly with satellite positioning tech, image transmission, mobile communication technology and the combination of burglar alarm technology, car mobile colonels such as (ships) carried out the control system of real-time monitoring and scheduling.
Background technology
The existing alarms and security systems for automobiles that utilizes communication network is the paging principle that adopts one-way transmission, call out the beep-pager that is installed on by in the money vehicle by paging centers, the start-up control parts are perhaps sounded and are reported to the police or locking vehicle electrical, oil circuit and brake apparatus, reach antitheft purpose.This thief-proof warning device is prone to mistake and exhales, and makes the unexpected block action of normal use vehicle, and is out of hand and damage consequence.Along with high-tech constantly develops, utilize GPS (Global Position System) that running information and navigation feature not only are provided, can also be as the device of thief-proof tracking, for automobile provides the information security service of diversification, the car (ship) that integrates global location, digital communication, burglar alarm with formation carries equipment.Described traditional have location, communication and burglar alarm do not possess functions such as digital map navigation, image transmission in the mobile unit of one, cannot insert VCD etc. yet.
The navigation system of traditional automobile is to adopt the storage carrier of laser disc as electronic chart.If use and control laser disc, must use the computer basic configuration except that dish.The leading equipment of this kind automobile, actual is exactly a dedicated notebook computer, and it costs an arm and a leg, function singleness, the unprovoked special requirement, outside moving paper money car, police car, special vehicle, the car owner considers that seldom configuration is from leading equipment.
Summary of the invention
A kind of location of the present invention, image transmission, monitoring and alarming system can solve and use radio speech channel or telephone wire to carry out on-the-spot real time video image transmission, the problem that multimedia technology, data technique and communication are combined, form collection communication and command, satellite fix, electronic chart, transmission of video images, computer network, monitoring management, the multi-functional monitoring and alarming system of forming flexibly in one.
A kind of location of the present invention, image transmission, monitoring and alarming system comprise portable terminal, communication base station, Surveillance center and HA Global Positioning Satellite; Described portable terminal is by vehicle mounted guidance terminal, vehicle-mounted image transmission terminal and vehicle-mounted analog wireless communication terminal; Described vehicle mounted guidance terminal is made up of gps antenna, OEM dash receiver, CPU, numerical map memory, IC-card interface, display-memory, sequential control circuit, vision signal decoding circuit, LCD interface circuit, IDEN handset port circuit; Described gps antenna receives global positioning satellite signal, and the locating information that obtains vehicle after the decoding of OEM dash receiver is connected with central processor CPU serial ports 1 through a level shifting circuit; Described numerical map memory adopts the FLASH chip, it has the above memory space of 33MBYTE, and digital map data becomes binary file after format conversion, serial ports 2 by CPU writes the FLASH chip, and the GPS information in the vehicle operating also can write the FLASH chip; Described IC-card interface is connected between CPU serial ports 2 and the IC card reader, finishes the level conversion function of the RS-232 interface circuit of CPU and IC card reader; Described handset port is connected between CPU serial ports 3 and the IDEN handset port, finishes the level conversion function; The map that described CPU will need to show is called in display-memory from the FLASH chip, and periodically display-memory is refreshed, described display-memory is connected with CPU by sequential control circuit, sequential control circuit sense data from display-memory is transformed into R, G, B tristimulus signals, is sent to display screen; This sequential control circuit is a programmable logic controller (PLC) spare, can produce timing signal and be sent to CPU, allow the CPU timesharing that display-memory is read and write and produce address signal, will become R, G, B analog component signal from the digital signal that display-memory is read, produce the capable field sync signal of standard simultaneously so that read the data of display-memory; The vision signal of described video signal decoder input, after its decoding, output tristimulus signals and a row homogenous frequency signal, and send into the LCD interface circuit; Described LCD interface circuit input end is connected with sequential control circuit, video signal decoder, and output termination LCD is finished the line-by-line inversion of signal amplification and signal;
Described vehicle-mounted image transmission terminal is made up of sequential control circuit, CPU, video memory in camera, image collection chip and the above-mentioned vehicle mounted guidance terminal; Described camera is connected with image collection chip, change-over circuit by a parallel data/serial data between image collection chip and the CPU is connected, it can be transformed into the parallel data of CPU output the 12C order, thereby reads and writes by the register in the 12C bus line command image collection chip; Described sequential control circuit as reference signal, produces address and read-write control signal by it with the LLC2 of IMAQ during IMAQ, the view data that is attached thereto the image collection chip output that connects is deposited in the video memory; After piece image is finished in collection, by to the sequential control circuit programming Control, select the address of CPU and data/address bus and read-write that video memory is read and write control; CPU is divided into picture signal 16 * 16 macro block, read in the RAM of CPU, convert thereof into Y, U, V, be divided into 8 * 8 sub-pieces again, by CPU it is carried out dct transform, quantification and HUFFMAN coding, obtain bit stream, it is temporary in is attached thereto the video memory that connects, then it is packaged into the UDP message bag when two field picture compression finishes, sends to the center by the IDEN mobile phone;
Described vehicle-mounted analogue transmission terminal is made up of gps antenna, OEM fishplate bar, CPU, data storage, modulator-demodulator, radio interface circuit; Described CPU and vehicle mounted guidance terminal are shared; Described gps antenna receives signal and is connected with CPU by the OEM dash receiver, locating information is stored in data storage, and is shown on LCD display after handling by CPU, after the modulation of 1200bps modulator-demodulator, locating information is uploaded to Surveillance center by radio station.
Central processor CPU in aforesaid a kind of location, image transmission, monitoring, the warning system in the vehicle mounted guidance terminal adopts the H8/3067F chip, it the is built-in program storage of 128KBYE and the RAM of 4KBYTE, three serial ports are arranged, its working method is MODE7, the level shifting circuit that its serial ports RXDO, TXDO constitute by the 74HCO7 chip respectively connects the serial ports output of OEM dash receiver, P3 mouth and the P4 mouth of described CPU are are dynamically read and write the FLASH chip, and described FLASH chip is selected the HN29N26511T chip for use; Serial ports RXD2, the TXD2 of described CPU is connected with the RS-232 interface of IC card reader by the level shifting circuit of being made up of the MC145406 chip; Serial ports RXD1, the TXD1 of described CPU, P60-P65 mouth are connected with the corresponding end of IDEN handset port by two level shifting circuits of being made up of the 74HCO7 chip; Described CPU is connected with the corresponding end of sequential control circuit EPM7128SQC; The address signal of described sequential control circuit output is regularly write read signal and is sent into and be attached thereto the display-memory K61008C2E chip that connects, and tristimulus signals, row field sync signal are delivered to display screen by interface circuit TA8696F; Video coding can adopt the OM8361 chip, its video signal input terminal is 13 pin, they are 37 years old, the output of 43 pin is respectively capable field sync signal, 4 pin output PAL/NTSC identification signal, this terminal limits the input Phase Alternation Line system and looks signal, this P/N identification signal is as the selection signal of 4053 chip switches, when vision signal is imported, 4053 chips are with the capable field sync signal H1 of video signal decoder OM8361 output, V1 and tristimulus signals R1, G1, B1 selects output, display screen demonstrates television image, and when no video signal is imported, capable field sync signal H2 with sequential control circuit EPM7128SQC output, V2, with tristimulus signals R2, G2, B2 selects output, and display screen demonstrates map picture; Described interface circuit adopts TA8696F type special interface circuit.
Image acquisition circuit in aforesaid a kind of location, image transmission, monitoring, the warning system in the vehicle-mounted image transmission terminal is the SAA7111H chip, and the data image signal of output RGB565 form, each pixel can be represented with 16bit, the bit number that is R, G, B is respectively 5,6,5, add the PCF8584 change-over circuit between image acquisition circuit and CPU, image is accepted and believed circuit and incoming video signal is carried out analog to digital conversion is exported from VPO15-VPO0; It is write video memory frame by frame, clock signal LLC2, row useful signal HREF, a useful signal VREF of image acquisition circuit output need be added to sequential control circuit, write the address so that produce video memory; CPU compresses processing to the view data in the video memory, and the data after the compression are sent into memory, after a frame image data has compressed, be sent out by the IDEN machine then its packing; It is time-sharing operation to the read-write process of video memory that the IMAQ data write video memory and CPU, as the CTL1 of CPU, when CTL2 is 1, CPU reads and writes the image acquisition circuit command register by change-over circuit PCF8584, as CTL1, when CTL2 is 0, CPU by change-over circuit PCF8584 with the view data of image acquisition circuit output according to write memory; When CTC1=1, CTL2=0, CPU carries out read-write operation to memory, and CTL1 and CTL2 in this terminal, can adopt two video memory K61008 by the CPU programming Control.
Adopt 800MHZ or 400MHZ simulation trunking communication radio station to realize the gps data transmission in aforesaid a kind of location, image transmission, monitoring, the warning system, and by radio station the GPS locating information is uploaded to Surveillance center by 1200bps modulator-demodulator FX469 modulation back; In the time will uploading gps data, the P33 output high level of CPU is equivalent to make radio station PTT by under the keyed jointing, sends data and is added to modulator-demodulator from CPU serial ports 2 transmitting terminal TXD2 output, after modulating, be added to the MIC in radio station, send to control centre by the radio station from TXSIGNALO/P output; The data that control centre passes down are added to the RXSIGNALI/P of modulator-demodulator after the radio station receives, after demodulation, export the serial ports 2 receiving terminal RXD2 of CPU to from CLOCKED DATA O/P, so that CPU reads the order of the biography center under.
A kind of location of the present invention, image transmission, monitoring and alarming system can adopt IDEN, TETRA Digital Clustering, communication system and simulation trunked communication system, and can carry out transfer of data by GPRS, comprise gps data, alert data, IC-card data etc., but the compatible transmission of data/voice has realized image transmission and the navigation of electronic map function under the arrow path.This device main feature is as follows:
1. with functions such as traffic guidance, satellite fix, electronic chart, transmission of video images, computer network, monitoring managements, form one flexibly, constitute operational commanding, battlebus, the navigation of ship dispatching degree, television monitoring, emergency alarm, modern operation command systems such as battle reconnaissance.Make the dynamic of very clear battlefield, command and control center moving target, information such as action route and image scene provide battlefield operational commanding real-time to the commander, reliably data.Be used for civilian monitoring and alarming system and possess above-mentioned functions and characteristics equally.
2. this device adopts advanced video image digital compression technology, has solved the wideband video picture signal is carried out the image transmission on antenna voice channel or ordinary telephone line a difficult problem effectively.
This device solves accessing fast of a large amount of geodatas, the problem of amplifying, dwindling and roaming, overcome map vector along with the data quantitative change is big, Computer Processing speed shows a difficult problem that progressively descends.Reach map vector and mark the purpose of putting the map compatibility by changing data source.
4. this device can be realized higher dynamic object positioning accuracy, and target dynamic positioning accuracy, stability, reliability are all improved a lot.
Description of drawings
Fig. 1 is the The general frame of a kind of location of the present invention, image transmission, monitoring and alarming system;
Fig. 2 is the vehicle mounted guidance terminal block diagram of a kind of location of the present invention, image transmission, monitoring and alarming system;
Fig. 3 is the OEM dash receiver of GPS of the transmission of a kind of location of the present invention, image, monitoring and alarming system and the interface circuit connection layout of CPU.
Fig. 4 is a kind of location of the present invention, image transmission, the CPU of monitoring and alarming system and the connecting circuit figure of numerical map memory;
Fig. 5 is the CPU and the IC-card interface circuit connection layout of a kind of location of the present invention, image transmission, monitoring and alarming system;
Fig. 6 is the CPU and the IDEN handset port circuit connection diagram of a kind of location of the present invention, image transmission, monitoring and alarming system;
Fig. 7 is that the capable field sync signal of the display timing generator control circuit of a kind of location of the present invention, image transmission, monitoring and alarming system produces circuit diagram;
Fig. 8 is that the explicit address of the display timing generator control circuit of a kind of location of the present invention, image transmission, monitoring and alarming system produces circuit;
Fig. 9 is the generation circuit diagram of the CPU of the transmission of a kind of location of the present invention, image, monitoring and alarming system to the read-write control circuit of video memory and R, G, B signal;
Figure 10 is CPU and the display timing generator control circuit and the display-memory connecting circuit figure of a kind of location of the present invention, image transmission, monitoring and alarming system;
Figure 11 is the connecting circuit figure of video signal decoder 4053 chips of a kind of location of the present invention, image transmission, monitoring and alarming system;
Figure 12 is a kind of location of the present invention, image transmission, the interface circuit of monitoring and alarming system and the connecting circuit figure of 4053 chips and LCDs;
Figure 13 is the vehicle-mounted image transmission terminal theory diagram of a kind of location of the present invention, image transmission, monitoring and alarming system;
Figure 14 is the connecting circuit figure between CPU, sequential control circuit, image acquisition circuit and the picture decoding memory of the transmission of a kind of location of the present invention, image, monitoring and alarming system;
Figure 15 is one of the internal logic circuit of the picture decoding sequential control circuit of the transmission of a kind of location of the present invention, image, monitoring and alarming system;
Figure 16 be the transmission of a kind of location of the present invention, image, monitoring and alarming system the picture decoding sequential control circuit internal logic circuit two;
Figure 17 is the vehicle-mounted artificial antenna communication terminal composition frame chart of a kind of location of the present invention, image transmission, monitoring and alarming system;
Figure 18 be the transmission of a kind of location of the present invention, image, monitoring and alarming system CPU and the interface circuit figure of data storage.
Embodiment
One. the overall system block diagram:
The general frame is seen Fig. 1.Native system mainly is made up of portable terminal and Surveillance center.And apply to global positioning satellite system and special use or public communication network system.
Two. portable terminal is formed
Portable terminal is divided into following three classes in the native system:
1. vehicle mounted guidance terminal
The major function of vehicle mounted guidance terminal is: utilize the IDEN mobile phone to realize uploading of GPS locating information, IC-card information, warning message.Utilize the true color LCDs to realize electronic chart, locating information, the demonstration of track of vehicle and the reproduction of vehicle-mounted VCD vision signal.
Vehicle mounted guidance terminal is made up of gps antenna, OEM dash receiver, CPU, numerical map memory, IC-card interface, display-memory, sequential control circuit, vision signal decoding circuit, LCD interface circuit, IDEN handset port circuit etc.See Fig. 2.
(1) GPS OEM dash receiver and CPU's is connected
Gps antenna receives global positioning satellite signal, after OEM dash receiver decoding, obtain the warp, latitude of vehicle, highly, locating information such as speed, direction, GPS OEM dash receiver has serial ports output, because its employing+3.0V power supply, and CPU adopts in the native system be+the 5V power supply, so between output of OEM dash receiver serial ports and the CPU serial ports level shifting circuit must be arranged, this terminal adopts the 74HC07 chip to realize this function.See shown in Figure 3.Among the figure, R10 and R11 are pull-up resistors.
(2) the numerical map memory and with being connected of CPU
CPU adopts the H8/3067F of Hitachi, Ltd, and it the is built-in program storage of 128KBYTE and the RAM of 4KBYTE has three serial ports, and its working method is chosen as MODE1～MODE7.Adopt MODE7 in this terminal.See the H8/3067F specification for details.
The numerical map memory adopts the FLASH chip of HN29N25611T, and it has the memory space of 33MBYTE.The original figure map is the polar plot of MAPINFO form, converts 24 bitmap formats to through MAPINFO.Consider that the map datum amount is big and the map memory span is limited, need map datum is further compressed.The final map that shows is eight kinds of colors on this terminal display screen, thus each pixel if 3bit can represent.In order to read and write conveniently the cartographic information of two pixels of each bytes store.See attached list shown in 1.
As everyone knows, 24 bitmaps are each pixel 24 bit representations, and promptly R, G, B respectively are 8, and each pixel of 3bit bitmap is represented with 3bit, and promptly R, G, B respectively are 1, and the relation of pixel color and R, G, B is seen attached list shown in 2.
24 bitmaps are transformed into the 3bit bitmap, and the colouring information that makes two pixels leaves in the byte, can earlier it be become the 4bit bitmap with PHOTOSHOP software, realize of the conversion of 4bit bitmap with C language compilation program then, also directly realize of the conversion of 24bit bitmap certainly to the 3bit bitmap with C language compilation program to the 3bit bitmap.
Map datum becomes binary file after format conversion, because its data volume is big, can in advance the binary file in the PC be write the FLASH chip by the special-purpose write device of FLASH.The annexation of FLASH chip and CPU is seen Fig. 4, in the terminating machine course of work, by P3 mouth and the P4 mouth of CPU FLASH is is dynamically read and write.CPU sees its DataSheet for details to the reading/writing method of FLASH.
Still reserved segment space in the map memory, the GPS information in the vehicle operating can in time write the FLASH chip, can be convenient to inquiry according to the vehicle operating GPS information in the size storage certain hour of its capacity like this in the FLASH chip.
(3) interface of CPU and IC-card
The IC-card interface is finished the level conversion function of the RS-232 interface circuit of CPU serial ports and IC card reader.Adopt the MC145406 chip to realize this function in this terminal.See shown in Figure 5.
(4) interface of IDEN mobile phone and CPU
Handset port is finished the level conversion function between CPU serial ports and the IDEN handset port.Adopt the 74HC07 chip to finish this function in this terminal.See shown in Figure 6.
(5) sequential control circuit EPM7128SQC100, display-memory K610082CE
For making the part numerical map (320*234 picture element) that shows current vehicle position on the display screen, the map that CPU will need to show is called in display-memory from FLASH, and periodically video memory is refreshed, and on the other hand, sequential control circuit will be transformed into R, G, B tristimulus signals from the video memory sense data, be sent to display screen, therefore, sequential control circuit will be finished following task: (1) produces timing signal so that allow the CPU timesharing that display-memory is read and write; (2) produce address signal so that read the data of display-memory; (3) will become R, G, B component signal from the digital signal that video memory is read; (4) the capable field sync signal of generation standard.For realizing above-mentioned functions, adopted the programmable logic device EPM7128SQC100 of ALTERA company.
ALTERA MAX PLUS II 10.1BASELINE software has been adopted in the programming of EPM7128SQC100, and available graphic-arts technique and AHDL language are programmed under this software.This terminal has adopted the graphic-arts technique programming.This terminal has adopted the graphic-arts technique 7128 internal logic figure that programme to see shown in Fig. 7-9.After compiling, generate fuse file * .pof, with the ALTERA special use write device it write 7128 devices get final product.
Fig. 7 is that row, field sync signal produce circuit, and its input CLKIN is the 12.5MHz clock, and output H is a line synchronizing signal, and V is a field sync signal.
Fig. 8 is that display-memory is read address production electric circuit, and purpose is the data in the video memory to be read be presented on the screen.TOSHIBA TFD50W32-B screen dot matrix is 320 (point) * 234 (OK), consider that row latent period is equivalent to the pixel time of 80 points, and the information of per two pixels one byte representation, so row address is 00H～C7H, its effective address (memory address that refers to 320 correspondences of every row) space is 18H～B7H, column address is 00H～E9H, 74541 (1) Y
1～Y
8The output row address, 74541 (2) Y
1～Y
8The output column address.One field pattern resembles the corresponding address space shown in subordinate list 3.
At 74541 (1) Y
1～Y
8With 74541 (2) Y
1～Y
8On 16 address wires of output, every 320ns time address changes once, and only has interior these addresses of 160ns time effective, and these address wires are ternary in the 160ns time in addition, so that during this period of time CPU carries out read-write operation to display-memory.
Fig. 9 is CPU to the read-write control circuit of display-memory and R, G, B signal generating circuit.AD0～AD15, D0～D2, D4～D6, WCS, RDCS are address, the data from CPU and write read control signal among the figure.MA0～MA15, MD0～MD2, MD4～MD6, MWE, MRD be EPM7128 output address, data, write, read signal, it is added to follow-up display-memory.R, G, B are three component signals of red, green, blue of EPM7128 output, are added to display screen the most at last.Because CPU carries out the read operation of video memory is different with the EPM7128 home address simultaneously to the read-write of display-memory, therefore, address and data from CPU must be after latching, in the 160ns time slot that distributes, can carry out read-write operation to video memory, the cartographic information that will show is write video memory or reads current data from video memory, so that part writes video memory after revising again.The data that are subjected to the control of EPM7128 home address and read are exported the tristimulus signals of a pixel correspondence again through the 74157 preceding 160ns that are chosen in 320ns after latching, back 160ns exports the tristimulus signals of another pixel correspondence.Obviously, tristimulus signals non-' 1 ' promptly ' 0 ' that is to say or are 5V, or are 0V, although this three road signal is still digital signal, are equivalent to the analog component signal that peak-peak value is 5V, have satisfied the requirement that three tunnel analog signals are imported in the display screen requirement.
The annexation of CPU and EPM7128 and display-memory is seen shown in Figure 10.Because EPM7128SQC100 has 100 pins, except that VCC and GND and test pin, other pin function can be specified when programming, so does not mark the pin sequence number among Figure 10.Using method about EPM7128SQC100 can see the explanation that ALTERA provides for details.
(6) Video Decoder OM8361
OM8361 is the video signal decoder of PHILIPS, and it is decoded to the composite video signal of input and exports capable field sync signal, tristimulus signals, and exports a PAL/NTSC identification signal according to the television system of incoming video signal.Use about OM8361 sees its specification for details.Figure 11 has provided the annexation of it and other circuit of this terminal.
13 pin of OM8361 are video signal input terminal, 37, the output of 43 pin is respectively row, field sync signal, and 4 pin output PAL/NTSC identification signal is when the input pal video signal, this pin is output as high level, and this pin is a low level when importing the TSC-system vision signal or not having the input of video signal.This terminal limits the input pal video signal, thereby when no video signal was imported, this pin was a low level, and this pin is a high level when vision signal is imported.The P/N identification signal just can be used as the selection signal of 4053 switches like this.When vision signal was imported, 4053 capable field sync signal H1, V1 and tristimulus signals R1, G1, B1 with OM8361 output selected output, and display screen demonstrates television image; And when no video signal was imported, 4053 capable field sync signal H2, V2 and tristimulus signals R2, G2, B2 with EPM7128SQC output selected output, and display screen demonstrates map picture.
(7) interface circuit TA8696F
TA8696F is the interface circuit that is exclusively used in LCDs that TOSHIBA produces, and it carries out clamper with signal, and with the half-line frequency signal (7.8KHZ) of output in the display screen tristimulus signals is modulated, and output is added on the display screen interface then.Its operation instruction sees its product description for details.Figure 12 has provided the annexation of it and other circuit of this terminal.
(8) LCDs
This terminating machine adopts TOSHIBA TFD50W32-B LCDs, and the input signal that this display screen requires has capable field sync signal, R, G, B three primary colors component signal etc.Detailed description can be with reference to its specification.
2. vehicle-mounted image transmission terminal
Vehicle-mounted image transmission terminal major function: utilize the IDEN mobile phone to realize the transmitted in packets of image, see block diagram 13.It combines with vehicle mounted guidance terminal, can realize the transfer function of integrated informations such as GPS locating information, image information.
Vehicle-mounted image transmission terminal is made up of image collection chip, sequential control circuit, CPU and video memory etc.
(1) interface of IDEN mobile phone and CPU
The interface relationship of IDEN mobile phone and CPU is seen Fig. 6.
(2) connection between CPU, SAA7111H, EPM7128SQC and the memory
IMAQ is realized with the SAA7111H of PHILIPS company.This chip is write suitable order, then it exports the data image signal of multiple forms such as CCIR-601, RGB888, RGB565, the data image signal of SAA7111H output RGB565 form in this terminal, each pixel can be represented with 16bit, the bit number that is R, G, B is respectively 5,6,5, shown in figure subordinate list 4.The detailed description of this chip can be with reference to its DataSheet.Figure 14 shows it and CPU, the annexation between the EPM7128.
SAA7111H has the I2C interface, so that by CPU its command register is read and write.Because the H8/3067F that this terminal adopts does not have the I2C bus, therefore, has added the PCF8584 change-over circuit between CPU and SAA7111H.PCF8584 can convert the parallel data of CPU to the I2C order that SAA7111H can discern, or converts the I2C command word that SAA7111H reads to parallel data and deliver to CPU.
SAA7111H carries out analog to digital conversion from VPO15～VPO0 output with the vision signal of input.For with its write memory frame by frame, clock signal LLC2 (13.5MHz), row useful signal HREF, a useful signal VREF of SAA7111H output need be added to EPM7128SQC, write the address so that produce memory.
Behind the intact also write memory of an image frame grabber, CPU will compress processing to the view data in the memory, and the data after the compression will be sent into memory, after a frame image data has compressed, be sent out by the IDEN mobile phone then its packing.Therefore, CPU also will carry out read-write operation to memory.In fact the process of IMAQ writing data into memory and CPU are time-sharing operations to the read-write process of memory.For this reason, must there be control signal to control.Among Figure 14, as CTL1, when CTL2 is 1, CPU reads and writes the SAA7111H command register by PCF8584; As CTL1, when CTL2 is 0, the view data energy write memory of SAA7111H output; As CTL1, when CTL2 is 0, the view data energy write memory of SAA7111H output; Work as CTL1=1, during CTL2=0, CPU can carry out read-write operation to memory.CTL1 and CTL2 are by the CPU programming Control.
In this terminal, the image of memory stores size is the 360*288 pixel, and depositing the required memory space of piece image is 360*288*2BYTE, adopts the memory of two 128KBYTE, remainder space still then, and the image after voltage supply is contracted just is temporary used.
CPU handles the compression of image and follows Joint Photographic Experts Group substantially, promptly comprise image block, dct transform, quantification, HUFFMAN coding, form binary code stream at last, it is temporary in video memory, then it is packaged into the UDP message bag when two field picture compression finishes, is sent to the center by the IDEN mobile phone.The compression algorithm of relevant JPEG can be with reference to the Joint Photographic Experts Group book.Do not describe in detail herein.
(3) EPM7128SQC100 sequential control circuit
Sequential control circuit mainly produces the memory write address according to the clock of SAA7111H output and row, a useful signal in the vehicle-mounted image terminal, and control SAA7111H output VPO0～VPO15 only just is added to CPU when IMAQ, otherwise is high resistant., the CPU OPADD be switched on the memory during at CPU memory read/write.EPM7128SQC100 is a programmable logic device, with graphic-arts technique it programmed, and compiling generation * .pof file (fuse file), at last by the special-purpose programmable device write device of ALTERA.EPM7128SQC100 internal logic figure is shown in Figure 15～16 in this terminal.
Among Figure 15, be 13.5MHz from its signal rate of VPO0～VPO15 of SAA7111H, promptly every effectively row 720 pixel informations for obtaining every effectively row 360 pixel informations, need sampling, and per two picture elements extract a pixel information.For this reason, the 13.5MHz frequency division is obtained 6.75MHz, then as 74374 (1), the latch clock of (2).As can be seen from the figure, when CTL1=0,74374 (1), (2) output effectively, otherwise be high resistant, thereby can not arrive video memory.
Among Figure 16,74161 (1), (2), (3), (4), (5) are for address signal produces circuit, are referred to as home address.Home address and from the address of CPU after 74541 controls, arbitrary moment has only the output of one tunnel address.
3. vehicle-mounted analog wireless communication terminal
The major function of vehicle-mounted analog wireless communication terminal: utilize 800MHz or 400MHz trunking communication radio station to realize the transmission of GPS locating information.
Vehicle-mounted analog wireless communication terminal is made up of gps antenna, OEM dash receiver, CPU, data storage, modulator-demodulator, radio interface circuit etc.See Figure 17.
This terminal realizes the reception of GPS locating information, after handling by CPU, stores in memory, and by radio station locating information is uploaded to Surveillance center by 1200bps modulator-demodulator modulation back, and Surveillance center can carry out remote control to terminal.The locating information of data storage access certain hour, when control centre needed, CPU read it, was sent to the center in batches.
(1) GPS OEM dash receiver and CPU's is connected
The interface relationship of GPS OEM dash receiver and CPU is seen Fig. 3.
(2) annexation of CPU and data storage M (A) M29
M (A) M29 is the gps data memory.The annexation of it and CPU is seen Figure 18.
(3) interface between CPU, modulator-demodulator FX469, the radio station is realized the gps data transmission because this terminal adopts 800MHz or 400MHz to simulate the trunking communication radio station, therefore, and must be with data-modulated.
| R | ?G | ?B | Keep | ??R | ??G | ??B | Keep |
Subordinate list 1
| R | ?G | ?B | Pixel color |
| 0 | ?0 | ?0 | Black |
| 0 | ?0 | ?1 | Blue |
| 0 | ?1 | ?0 | Green |
| 0 | ?1 | ?1 | |
| 1 | ?0 | ?0 | |
| 1 | ?0 | ?1 | The |
| 1 | ?1 | ?0 | |
| 1 | ?1 | ?1 | White |
Subordinate list 2
| ???????RGB ??D0～D2?D4～D6 ????[0018H] | ???????RGB ??D0～D2?D4～D6 ?????[0019H] | ??????RGB ??D0～D2?D4～D6 ?????[0020H] | --- | ???????RGB ??D0～D2?D4～D6 ??????[00B6H] | ???????RGB ??D0～D2?D4～D6 ?????[00B7H] |
| ???????RGB ??D0～D2?D4～D6 ????[0118H] | ???????RGB ??D0～D2?D4～D6 ?????[0119H] | ??????RGB ??D0～D2?D4～D6 ?????[0120H] | --- | ???????RGB ??D0～D2?D4～D6 ??????[01B6H] | ???????RGB ??D0～D2?D4～D6 ?????[01B7H] |
| ???????RGB ??D0～D2?D4～D6 ????[0218H] | ???????RGB ??D0～D2?D4～D6 ?????[0219H] | ??????RGB ??D0～D2?D4～D6 ?????[0220H] | --- | ???????RGB ??D0～D2?D4～D6 ??????[02B6H] | ???????RGB ??D0～D2?D4～D6 ?????[02B7H] |
| ???????--- | ???????--- | ??????--- | --- | ??????--- | ???????--- |
| ???????RGB ??D0～D2?D4～D6 ????[E818H] | ???????RGB ??D0～D2?D4～D6 ?????[E819H] | ??????RGB ??D0～D2?D4～D6 ?????[E820H] | --- | ???????RGB ??D0～D2?D4～D6 ??????[E8B6H] | ???????RGB ??D0～D2?D4～D6 ?????[E8B7H] |
| ???????RGB ??D0～D2?D4～D6 ????[E918H] | ???????RGB ??D0～D2?D4～D6 ?????[E919H] | ??????RGB ??D0～D2?D4～D6 ?????[E920H] | --- | ???????RGB ??D0～D2?D4～D6 ??????[E9B6H] | ???????RGB ??D0～D2?D4～D6 ?????[E9B7H] |
| ?VPO15 | ?R4 |
| ?VPO14 | ?R3 |
| ?VPO13 | ?R2 |
| ?VPO12 | ?R1 |
| ?VPO11 | ?R0 |
| ?VPO10 | ?G5 |
| ?VPO9 | ?G4 |
| ?VPO8 | ?G3 |
| ?VPO7 | ?G2 |
| ?VPO6 | ?G1 |
| ?VPO5 | ?G0 |
| ?VPO4 | ?B4 |
| ?VPO3 | ?B3 |
| ?VPO2 | ?B2 |
| ?VPO1 | ?B1 |
| ?VPO0 | ?B0 |
Claims (4)
1. a location, image transmission, monitoring and alarming system, it comprises portable terminal, communication base station, Surveillance center and HA Global Positioning Satellite; It is characterized in that: portable terminal comprises vehicle mounted guidance terminal, vehicle-mounted image transmission terminal and vehicle-mounted analog wireless communication terminal;
Described vehicle mounted guidance terminal is made up of gps antenna, OEM dash receiver, CPU, numerical map memory, IC-card interface, display-memory, sequential control circuit, vision signal decoding circuit, LCD interface circuit, IDEN handset port circuit; Described gps antenna receives global positioning satellite signal, and the locating information that obtains vehicle after the decoding of OEM dash receiver is connected with central processor CPU serial ports 1 through a level shifting circuit; Described numerical map memory adopts the FLASH chip, it has the above memory space of 33MBYTE, and digital map data becomes binary file after format conversion, serial ports 2 by CPU writes the FLASH chip, and the GPS information in the vehicle operating also can write the FLASH chip; Described IC-card interface is connected between CPU serial ports 2 and the IC card reader, finishes the level conversion function of the RS-232 interface circuit of CPU and IC card reader; Described handset port is connected between CPU serial ports 3 and the IDEN handset port, finishes the level conversion function; The map that described CPU will need to show is called in display-memory from the FLASH chip, and periodically display-memory is refreshed, described display-memory is connected with CPU by sequential control circuit, sequential control circuit sense data from display-memory is transformed into R, G, B tristimulus signals, is sent to display screen; This sequential control circuit is a programmable logic controller (PLC) spare, can produce timing signal and be sent to CPU, allow the CPU timesharing that display-memory is read and write and produce address signal, will become R, G, B analog component signal from the digital signal that display-memory is read, produce the capable field sync signal of standard simultaneously so that read the data of display-memory; The vision signal of described video signal decoder input, after its decoding, output tristimulus signals and a row homogenous frequency signal, and send into the LCD interface circuit; Described LCD interface circuit input end is connected with sequential control circuit, video signal decoder, and output termination LCD is finished the line-by-line inversion of signal amplification and signal;
Described vehicle-mounted image transmission terminal is made up of sequential control circuit, CPU, video memory in camera, image collection chip and the above-mentioned vehicle mounted guidance terminal; Described camera is connected with image collection chip, change-over circuit by a parallel data/serial data between image collection chip and the CPU is connected, it can be transformed into the parallel data of CPU output the 12C order, thereby reads and writes by the register in the 12C bus line command image collection chip; Described sequential control circuit as reference signal, produces address and read-write control signal by it with the LLC2 of IMAQ during IMAQ, the view data that is attached thereto the image collection chip output that connects is deposited in the video memory; After piece image is finished in collection, by to the sequential control circuit programming Control, select the address of CPU and data/address bus and read-write that video memory is read and write control; CPU is divided into picture signal 16 * 16 macro block, read in the RAM of CPU, convert thereof into Y, U, V, be divided into 8 * 8 sub-pieces again, by CPU it is carried out dct transform, quantification and HUFFMAN coding, obtain bit stream, it is temporary in is attached thereto the video memory that connects, then it is packaged into the UDP message bag when two field picture compression finishes, sends to the center by the IDEN mobile phone;
Described vehicle-mounted analogue transmission terminal is made up of gps antenna, OEM fishplate bar, CPU, data storage, modulator-demodulator, radio interface circuit; Described CPU and vehicle mounted guidance terminal are shared; Described gps antenna receives signal and is connected with CPU by the OEM dash receiver, locating information is stored in data storage, and is shown on LCD display after handling by CPU, after the modulation of 1200bps modulator-demodulator, locating information is uploaded to Surveillance center by radio station.
2. a kind of location as claimed in claim 1, image transmission, monitoring, warning system, it is characterized in that: the central processor CPU in the vehicle mounted guidance terminal adopts the H8/3067F chip, it the is built-in program storage of 128KBYE and the RAM of 4KBYTE, three serial ports are arranged, its working method is MODE7, the level shifting circuit that its serial ports RXDO, TXDO constitute by the 74HCO7 chip respectively connects the serial ports output of OEM dash receiver, P3 mouth and the P4 mouth of described CPU are are dynamically read and write the FLASH chip, and described FLASH chip is selected the HN29N26511T chip for use; Serial ports RXD2, the TXD2 of described CPU is connected with the RS-232 interface of IC card reader by the level shifting circuit of being made up of the MC145406 chip; Serial ports RXD1, the TXD1 of described CPU, P60-P65 mouth are connected with the corresponding end of IDEN handset port by two level shifting circuits of being made up of the 74HCO7 chip; Described CPU is connected with the corresponding end of sequential control circuit EPM7128SQC; The address signal of described sequential control circuit output is regularly write read signal and is sent into and be attached thereto the display-memory K61008C2E chip that connects, and tristimulus signals, row field sync signal are delivered to display screen by interface circuit TA8696F; Video coding can adopt the OM8361 chip, its video signal input terminal is 13 pin, they are 37 years old, the output of 43 pin is respectively capable field sync signal, 4 pin output PAL/NTSC identification signal, this terminal limits the input Phase Alternation Line system and looks signal, this P/N identification signal is as the selection signal of 4053 chip switches, when vision signal is imported, 4053 chips are with the capable field sync signal H1 of video signal decoder OM8361 output, V1 and tristimulus signals R1, G1, B1 selects output, display screen demonstrates television image, and when no video signal is imported, capable field sync signal H2 with sequential control circuit EPM7128SQC output, V2, with tristimulus signals R2, G2, B2 selects output, and display screen demonstrates map picture; Described interface circuit adopts TA8696F type special interface circuit.
3. a kind of location as claimed in claim 1, image transmission, monitoring, warning system, it is characterized in that: the image acquisition circuit in the vehicle-mounted image transmission terminal is the SAA7111H chip, and the data image signal of output RGB565 form, each pixel can be represented with 16bit, the bit number that is R, G, B is respectively 5,6,5, add the PCF8584 change-over circuit between image acquisition circuit and CPU, image is accepted and believed circuit and incoming video signal is carried out analog to digital conversion is exported from VPO15-VPO0; It is write video memory frame by frame, clock signal LLC2, row useful signal HREF, a useful signal VREF of image acquisition circuit output need be added to sequential control circuit, write the address so that produce video memory; CPU compresses processing to the view data in the video memory, and the data after the compression are sent into memory, after a frame image data has compressed, be sent out by the IDEN machine then its packing; It is time-sharing operation to the read-write process of video memory that the IMAQ data write video memory and CPU, as the CTL1 of CPU, when CTL2 is 1, CPU reads and writes the image acquisition circuit command register by change-over circuit PCF8584, as CTL1, when CTL2 is 0, CPU by change-over circuit PCF8584 with the view data of image acquisition circuit output according to write memory; When CTC1=1, CTL2=0, CPU carries out read-write operation to memory, and CTL1 and CTL2 in this terminal, can adopt two video memory K61008 by the CPU programming Control.
4. a kind of location as claimed in claim 1, image transmission, monitoring, warning system, it is characterized in that: this terminal adopts 800MHZ or 400MHZ simulation trunking communication radio station to realize the gps data transmission, and by radio station the GPS locating information is uploaded to Surveillance center by 1200bps modulator-demodulator FX469 modulation back; In the time will uploading gps data, the P33 output high level of CPU is equivalent to make radio station PTT by under the keyed jointing, sends data and is added to modulator-demodulator from CPU serial ports 2 transmitting terminal TXD2 output, after modulating, be added to the MIC in radio station, send to control centre by the radio station from TXSIGNALO/P output; The data that control centre passes down are added to the RXSIGNALI/P of modulator-demodulator after the radio station receives, after demodulation, export the serial ports 2 receiving terminal RXD2 of CPU to from CLOCKED DATA O/P, so that CPU reads the order of the biography center under.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN021241015A CN1216466C (en) | 2002-07-11 | 2002-07-11 | Monitoring alarm system for locating position and image transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN021241015A CN1216466C (en) | 2002-07-11 | 2002-07-11 | Monitoring alarm system for locating position and image transmission |
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| CN1447540A true CN1447540A (en) | 2003-10-08 |
| CN1216466C CN1216466C (en) | 2005-08-24 |
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|---|---|---|---|
| CN021241015A Expired - Fee Related CN1216466C (en) | 2002-07-11 | 2002-07-11 | Monitoring alarm system for locating position and image transmission |
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