CN201699884U

CN201699884U - Rail locomotive remote video monitoring system

Info

Publication number: CN201699884U
Application number: CN 201020233039
Authority: CN
Inventors: 胡火明; 戴瑜兴; 温翠红; 欧海霞; 戴舜; 朱方
Original assignee: HUIZHOU BIAODING AIR COMPRESSION TECHNOLOGY CO LTD
Current assignee: Guangdong Top Technology Ltd By Share Ltd
Priority date: 2010-06-13
Filing date: 2010-06-13
Publication date: 2011-01-05
Anticipated expiration: 2020-06-13

Abstract

The utility model provides a rail locomotive remote video monitoring system which comprises an embedded network video acquisition and compression module, an ARM communication processing module, a GPRS transmission network module, a remote monitoring terminal module and a video conference module according to the video streaming sequence; the video conference module is also respectively connected with the video acquisition points of the embedded network video acquisition and compression module, and the ARM communication processing module; the rail locomotive remote video monitoring system adopts real-time video transmission, dialogue and the video conference to enable the remote monitoring center or security guard to take effective measures to deal with the abnormal conditions, so as to protect the life and property of passengers.

Description

The rail locomotive Active Eyes

Technical field

The utility model relates to a kind of rail locomotive Active Eyes.

Background technology

Along with development of science and technology, the expansion in city, track train appears at the people's sight scope more.Select the vehicles of track train as trip, have speed soon, on schedule, free of contamination advantage, but because the population mobility is big on the train, also become thief pickpocket even terrorist's normal poly-place, there is certain threat in people's property safety.In recent years, this problem was caused attention gradually, to the bigger dynamics of the monitoring of train cost, had obtained certain progress, but rested on vehicle-mounted wired monitoring system substantially, and monitor terminal places on the locomotive, and purposes is exactly the function of video camera basically.Investigation resource or evidence of crime after also just taking place as abnormal accident basically, and can ignore substantially the monitoring function of incident generating process.Especially take place to plunder or terrorist activity etc. brazenly during criminal activity, vehicle-mounted monitoring system is not easy to the professional and police analyze scene of a crime and crime motive.

Summary of the invention

Goal of the invention of the present utility model is, improves targetedly in conjunction with existing vehicle-mounted monitoring system, realizes that monitoring function is stronger, and the monitoring place is more flexible, and the related personnel that is more convenient for carries out security monitoring and accident treatment.

The utility model can be achieved through the following technical solutions: a kind of rail locomotive Active Eyes, it is characterized in that, mobile order according to video, comprise an embedded type network video collection compression module, an ARM Communications Processor Module, a GPRS transmission network module, a remote monitoring terminal module and a video conference module, described video conference module also links to each other respectively with described ARM Communications Processor Module with each video acquisition point of described embedded type network video collection compression module.

Technique scheme, in conjunction with the GPRS technology, integrate multiple advanced technologies such as computer technology, the communication technology and video acquisition technology, having provided collection embedded technology, GPRS radio network technique and video conference is the rail locomotive long distance control system of one, realized remote monitoring, efficiently solved the limitation on distance and space of cable network in the past rail locomotive.After adopting technique scheme, video technique can be used for the security monitoring scene, adopt modes such as real-time video transmission, scene dialogue, video conference, can make remote monitoring center or security personnel when noting abnormalities situation, can take effective processing method, ensure passenger's the security of the lives and property.

Below in conjunction with drawings and embodiments the utility model is explained in detail.

Description of drawings

Fig. 1 is a hardware block diagram of the present utility model;

Fig. 2 is that embedded type network video of the present utility model is gathered the compression module structure chart

Fig. 3 is the circuit connection diagram of the utility model S3C2410 and FLASH;

Fig. 4 is the hardware chart of ARM Communications Processor Module of the present utility model;

Fig. 5 is the utility model ARM Communications Processor Module software design flow chart;

Fig. 6 is GPRS transmission network modular structure figure of the present utility model;

Fig. 7 is the utility model remote monitoring terminal structure chart.

Embodiment

In an embodiment, rail locomotive Active Eyes hardware block diagram as shown in Figure 1, in rail locomotive Active Eyes structure, the real-time status of compression module acquisition trajectory locomotive is at first gathered by system by an Internet video, compression back by the ARM Communications Processor Module as transfer, be sent to GPRS network, wireless mode transmission makes the limitation of not considering space and distance and more convenient, monitor terminal receives the information that GPRS transmits, and utilizes video conference to feed back to the staff.When abnormal conditions take place, take corresponding measure by staff or public security police again, safeguard passenger's the security of the lives and property.

Fig. 2 gathers the compressibility structure chart for embedded type network video, the primary processor that High Performance DSP is compressed as video acquisition, but can not support talk various network protocols effectively.And the 32-bit microprocessor system that can move embedded OS can effectively support talk various network protocols, but (as image compression algorithm) operational capability does not catch up with when handling the bigger task of some operands.Native system combines both, and the embedded type network video that constitutes the separate double nuclear structure is gathered compressibility.

System front end uses the TMS320C6202B of TI company as the primary processor of gathering compression.It can realize high-speed parallel pile line operation, has very big potentiality on realtime graphic is handled.Dispose some peripheral components and can form an independently image compression terminal.The system rear end uses the S3C2410 of Samsung as the webserver, and S3C2410 is based on 32 risc processors of ARM kernel, has powerful processing, controlled function, as the primary processor of supervisory control system, and operation system, network protocol stack.Install network card chip additional, just the packed data that can easily DSP be transmitted is packed by network protocol stack, issues monitoring client by demand.

H.264 native system uses video encoding standard of new generation, compares with compression coding mode in the past, can obtain higher compression ratio and better pictures quality.

Hardware realizes dividing following three modules:

Video input modular converter: this module functions is that the analog video signal that the CCD camera is imported is converted to digital signal, requires chronologically then storage in the video FIFO of special use, waits for that DSP handles.This module adopts the video a/d chip SAA7114H of a slice PHILIPS company, it has the input of 6 road analog videos, two simulation preliminary treatment passages, and anti-aliasing filtering, comb filtering all be integrated into chip internal, and this brings great convenience for hardware designs.Utilize field sync signal IGPV, line synchronizing signal IGPH, effectively view data output signal IDQ, clock output signal ICLK, can judge synchronously and control line data and field data.

The CPLD control module: the composition core of this module is the CPLD chip EPM7128AETC100 of a slice altera corp, mainly finishes video AD and FIFO, FIFO and DSP, the sequencing control function between DSP and the ARM.

DSP compressed encoding module: this module is mainly born the processing of the digital video frequency flow that collects FIFO and compression.This dsp chip is Application Design such as wireless lathe station, image/video specially, and complete sheet external tapping is arranged, and can expand peripheral hardwares such as chip external memory more easily.By the xBus bus of TMS320C6202B, can directly be connected with ARM, realize transfer of data.TMS320C6202B adopts the architecture of VLIW, and 8 parallel processing elements are arranged in the sheet, is divided into identical two groups.

Software is realized:

System program design is divided into following components: (1) DSP initialize routine bag: comprise the configuration of C6202B power-up initializing, EMIF bus control register and MCBSP register configuration are provided with the DMA transmission register, and interrupt vector table is set.(2) video AD and FIFO initialize routine bag: comprise iic bus simulation softward bag, video AD configuration software bag.(3) video compression program package: the YUV image changes into the picture format program that H.264 requires.(4) dsp system is to the data distributing program of ARM system.(5) transplanting of embedded OS and network protocol stack.

Fig. 3 is the circuit connection diagram of S3C2410 and FLASH, S3C2410 is as the webserver, S3C2410 is based on 32 risc processors of ARM kernel, have powerful processing, controlled function, primary processor as supervisory control system, operation system, network protocol stack are packed the packed data that DSP transmits by network protocol stack, issue monitoring client by demand.

Fig. 4 is the ARM Communications Processor Module, this module functions is to receive DSP compressed code flow data, the video code flow after the compression is packed the operation embedded web server by network protocol stack, wait is sent to the remote monitoring end, and realization video acquisition end is connected with the GPRS delivery module.

Fig. 5 is the software design of ARM Communications Processor Module, mainly comprises five parts: ethernet communication processing module, code editor module, information display module, code extract processing module, RS485 bus communication processing module.The design of program comprises the transplanting of operating system and network protocol stack etc., the uc/osII that operating system adopts be a simply, embedded real-time multi-task operating system efficiently, the source code of this system is open, and have good portability and an autgmentability, its stability and reliability have been passed through practice test, are fit to very much be applied to the control system field.Network protocol stack adopts LWIP, this is lightweight (light weight) the ICP/IP protocol stack that a cover is used for embedded system, comprise TCP, UDP, ICMP, IP, ARP, DHCP agreement etc., it and uc/osII have constituted the design agents of ARM Communications Processor Module software.

Fig. 6 is GPRS transmission network modular structure figure: GPRS transmission network module is selected the MC55 module.The MC55 module is global system for mobile communications of new generation (the globalsystem for mobile com-munications that Siemens Company releases, GSM) communication module, support end-to-end user's communications mode, support SMS service (short message service, SMS) and transfer of data and audio call such as GPRS.Module provides very complete use interface, comprises two-way serial data communication interface, Subscriber Identity Module Subscriber Identification Module, SIM) interface, and embedded TCP/IP stack, serial ports is supported GSM 07110 agreement, baud rate is adjustable.The serial line interface of GPRS module is the UART mouth of a full duplex, and it is mutual with MC55 that the user can send the AT order by this serial ports, carries out the transmitting-receiving and the information interaction of data.

Fig. 7 is the remote monitoring terminal structure chart, and the 93C46 integrated circuit that has adopted MICROCHIP company to release in this monitor terminal is the programmable read only memory of a CMOS electric erasable, and capacity is 1K (64 * 16) position.Not only have hardware and software write-protect function, and compatible fully with the TTL circuit, volume is little, and is low in energy consumption, and interface is simple, can link to each other with the processor of various models very easily.In native system, use sampled result and other relevant informations of 93C46EEPROM storage system initiation parameter, analog signals and digital quantity signal.

The hardware of remote monitoring terminal is formed and is comprised: MCU (LPC2119), EEPROM (93C46) and alarm module.Realize wireless transmission by GPRS module (MC55).MCU unifies control as " brain " of whole remote monitoring terminal to other several modules, guarantees the normal in order operation of remote monitoring terminal.

Adopt the serial communication mode between MC55 and the LPC2119, the remote information that receives is sent to LPC2119, remote information is resolved and handled by LPC2119 by serial communication MC55.LPC2119 regularly sends to MC55 with the real time data of its rail locomotive that collects by serial communication, by MC55 the real time data of rail locomotive is sent to Surveillance center with the GPRS communication mode.

Claims

1. rail locomotive Active Eyes, it is characterized in that, mobile order according to video, comprise an embedded type network video collection compression module, an ARM Communications Processor Module, a GPRS transmission network module, a remote monitoring terminal module and a video conference module, described video conference module also links to each other respectively with described ARM Communications Processor Module with each video acquisition point of described embedded type network video collection compression module.

2. rail locomotive Active Eyes as claimed in claim 1 is characterized in that, described embedded type network video is gathered compression module, with the primary processor of TMS320C6202B as the collection compression.

3. rail locomotive Active Eyes as claimed in claim 1 is characterized in that, described ARM Communications Processor Module is selected the S3C2410 processor of Samsung for use.

4. rail locomotive Active Eyes as claimed in claim 1 is characterized in that, described GPRS transmission network module is selected the MC55 module for use.

5. rail locomotive Active Eyes as claimed in claim 1 is characterized in that, described remote monitoring terminal module comprises MCU, EEPROM and alarm module.

6. rail locomotive Active Eyes as claimed in claim 1 is characterized in that, described video conference module is with the access network of GPRS network as system.