CN101742256A

CN101742256A - DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device

Info

Publication number: CN101742256A
Application number: CN200910154965A
Authority: CN
Inventors: 马莉; 黄可杰; 吴开华; 邹绍芳; 张桦; 周一君; 闫建强; 秦波
Original assignee: Hangzhou Electronic Science and Technology University
Current assignee: Jiangsu Huaan Scientific Research Devices Co., Ltd.
Priority date: 2009-12-07
Filing date: 2009-12-07
Publication date: 2010-06-16
Anticipated expiration: 2029-12-07
Also published as: CN101742256B

Abstract

The invention relates to a DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device. A conventional forest fire video monitoring device has relatively higher requirement on wiring and is high in cost. The DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device comprises a front-end server and a monitoring centre, wherein the front-end server comprises an IP module and is wirelessly connected with the monitoring centre through a network; a holder carries the movement of a camera and is in signal connection with a DSP module; the camera is in signal connection with a video distributor; two paths of output of the video distributor are in signal connection with the IP module and is connected with a video input port of the DSP module; the IP module is connected with the DSP module through a serial port and is in signal connection with a CDMA module; a sensor is connected with the DSP module through the serial port; and a solar power supply module supplies power to the front-end server. The DSP/IPMOD intelligent video server-based forest fire wireless remote monitoring device adopts solar power supply, online video image flame detection and CDMA wireless transmission technology and better realizes the intelligent monitoring of a forest fire.

Description

Forest fire wireless remote monitoring device based on the DSP/IPMOD intelligent video server

Technical field

The invention belongs to the video monitoring apparatus of technical field of image processing, particularly a kind of forest fire wireless remote monitoring device that utilizes video image processing technology and hardware system thereof to make up.Be specifically related to a kind of forest fire early warning system of image processing, wireless communication and client-side monitoring of the intelligent video server based on the DSP/IPMOD dual processor.

Background technology

The monitoring remote video technology has obtained significant progress at present, and the transmission of video monitoring apparatus and the disposal ability of video information are the focuses that people study always.

Active Eyes has experienced the analogue system (VCR) of the first generation, partial digitized system of the second generation (DVR/NVR) and third generation fully digitalization system (web camera and video server) three phases.Yet the intelligent video monitoring technology that development in recent years is got up can initiatively be analyzed monitoring on-the-spot video image, and early warning information is provided, and has brought new change for modern safety-security area.Present domestic intelligent monitoring product is also in development, external product price height, and core technology is monopolized.Therefore, it is significant that research and development have the intelligent video long distance control system of independent intellectual property right.

Traditional video monitoring apparatus is general to adopt non real-time local hard drive record or real-time cable network connection transmission to carry out manual monitoring, and server end does not comprise video image to be handled.The local hard drive record that does not comprise the video image processing can not be monitored in real time automatically; And cable network is higher to outlying LAN cabling requirement, the expense costliness.The remote auto monitoring of forest fire is to the forest zone ecological safety and environmental protection is significant and current demand; security product exploitation in present domestic forest zone is relatively more sluggish, hinders the intelligentized subject matter of forest zone supervisory control system and comprises independently-powered, Network Transmission and the effective flame detection algorithm of embedded system.External forest zone security protection equipment mostly is satellite remote sensing greatly, and the cost height is not suitable for the characteristics that spreading is divided in the middle-size and small-size forest zone of China.The embedded intelligence image processing video server that exploitation has independent intellectual property rights replaces artificial remote monitoring and improves its monitoring usefulness, is the key of video long distance control system upgrading.In addition, in the flame monitoring system of building away from the forest zone of power network, adopt the solar energy autonomous power supply system based on video image; Adopt the radio CDMA module to set up the communications of front end intelligent server and remote control center simultaneously, solved the difficulty that the outlying district can't have access to gauze, reduced the network struction cost.

Summary of the invention

The present invention is directed to deficiencies such as existing video monitoring technology is limited in the power supply of outlying forest zone, wired network communication wiring cost height, shortage automated graphics recognition function, a kind of forest fire wireless remote monitoring device based on the DSP/IPMOD intelligent video server is provided.

The technical solution adopted in the present invention is:

Forest fire wireless remote monitoring device based on the DSP/IPMOD intelligent video server comprises front end intelligent video server and Surveillance center.The front end intelligent video server comprises IP module, DSP module, CDMA module, video distributor, camera, The Cloud Terrace, solar powered module and transducer; The front end intelligent video server is by network and Surveillance center's wireless connections.

The Cloud Terrace carrying cam movement, the control end of The Cloud Terrace is connected with the RS232 serial ports of DSP module; The camera signals output is connected with the video distributor signal, one tunnel output of video distributor is connected with the IP module by signal, another road output is connected with the video inputs mouth of DSP module, be connected by serial ports RS232 between IP module and the DSP module, the IP module is connected by Ethernet interface with the CDMA module, and transducer is connected by serial ports RS232 with the DSP module; Solar powered module provides power supply for front-end server.Described Surveillance center is long-range PC, adopts the control of VC++ programming realization to front-end server.

The present invention adopts solar powered and the cdma wireless transmission technology, and video monitoring equipment is low to power supply and network facilities requirement, the cost less investment, and exploitativeness is strong, has satisfied the intelligent monitoring of forest fire preferably; Simultaneously, the IP module adopts H.264 video coding, and the communication broadband that takies little is convenient to store and management, for Surveillance center provides real time video image, is convenient to manual monitoring and intelligent image and analyzes monitoring analysis; The front end intelligent video server of this device adopts the bi-processor architecture of DSP+IPMOD, under the DSP module, utilizes DSP/BIOS dispatching management flame analysis algorithm, cradle head control and serial communication based on the RF5 framework; Under the IP module, utilize multithread scheduling managing video compression transmission, networking command transmission and the serial communication of Linux.This dual-core architecture has improved the stability and the reliability of system, has the real-time video monitoring and the flame analysis function of high-quality, high reliability.

The groundwork process of apparatus of the present invention comprises the steps:

1. solar powered module provides safe and reliable multistage DC power supply for the front end intelligent video server.Camera can carry out the video image acquisition of 360 degree rotations;

2. intelligent video server starts, and intelligent video server is by Ethernet interface the communicating to connect through foundation of CDMA module and long-range PC of IP module;

3. long-range PC client computer is provided with video coding parameter by monitoring interface, carries out the initialization of coding parameter;

4. startup video acquisition.T at any one time, video distributor are that IP module and DSP module improve the identical video data of two-way.The IP module receives the video stream data from video distributor, H.264 encodes, and is wirelessly transmitted to long-range Surveillance center by cdma network; Simultaneously, the DSP module is carried out image analysis processing (flame detection) to the video stream data from video distributor;

5. confirm to have the generation of the condition of a fire when the DSP module, determine position and rank that the condition of a fire takes place, warning message is sent warning message to remote monitoring center;

6. Surveillance center receives warning message, and the condition of a fire is confirmed and handled.In monitor procedure, Surveillance center can realize video playback, meteorologic parameter inquiry, The Cloud Terrace status poll, fire alarm, cradle head control and camera lens controlled function;

7. when Surveillance center sends the control command that the The Cloud Terrace azimuth changes by monitoring interface (or The Cloud Terrace status poll, meteorological data inquiry), the control command CDMA module of flowing through reaches the DSP module by the IP module, thereby changes the attitude (or inquiry The Cloud Terrace attitude) of The Cloud Terrace;

8.DSP module will be monitored on-the-spot humiture meteorological data (from transducer) and the operating state of The Cloud Terrace and camera is transferred to long-range Surveillance center through the IP module by the cdma wireless router-module.

The present invention has the following advantages with respect to prior art:

1. the present invention adopts and looks the IP video module that provides by the Haikang prestige, it serves as to handle core with the DAVINCI chip, utilizing technology H.264 to realize on the basis of coding of video, needs according to system, utilize the multi-thread mechanism of linux to realize that the multi-task scheduling of system moves, more more efficient and stable than other chip.

2. the present invention adopts the bi-processor architecture of IP and DSP module, and the DAVINCI under the IP module itself is again the double-core chip of ARM+DSP, and DSP nuclear carries out the compression of video data coding, and ARM nuclear carries out system management.And the nuclear of the DSP under the DSP module carries out image processing and cradle head control management.Reduce the live load of single chip by the division of labor of clear and definite refinement, not only improve operating efficiency, and carried out information interaction and coordination, thus the real-time video monitoring of realization high-quality, high reliability and flame analysis monitoring, device structure is simple, is convenient to install, use and manage.

3. the present invention obtains the live video flow data from video distributor, adopts video image analysis and treatment technologies such as automatic background renewal, motion detection and feature extraction, provides round-the-clock flame to detect.Be applicable to the security protection monitoring of middle-size and small-size forest zone.

4. the present invention utilizes DSP/BIOS to realize the communication between multithreading, the multitask, synchronous and mutual exclusion in the DSP module, has strengthened the stability and the reliability of system.And the serial ports interrupt pin of DM642 is configured, realized the Real Time Drive control of universal turning bench and video camera.

5. the present invention adopts the cdma wireless transmission technology, has realized the real-time radio transmission of video monitoring data stream, and is more more extensive than the scope of application of traditional video monitoring equipment, and cost is lower, function is strong.

Description of drawings

Fig. 1 structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is further elaborated.

As shown in Figure 1, forest fire wireless remote monitoring device based on the DSP/IPMOD intelligent video server comprises front end intelligent video server (scope that frame of broken lines is represented) and Surveillance center 9, and the front end intelligent video server comprises IP module 5, DSP module 6, CDMA module 7, video distributor 4, camera 3, The Cloud Terrace 2, solar powered module 1 and transducer 8; The front end intelligent video server is by network and Surveillance center's 9 wireless connections.

3 motions of The Cloud Terrace 2 carrying cameras, the control end of The Cloud Terrace 2 is connected with the RS232 serial ports of DSP module 6; Camera 3 signal output parts are connected with video distributor 4 signals, and video distributor 4 output two-path video signals are delivered to the video inputs mouth of IP module 5 and DSP module 6 respectively; IP module 5 is connected with DSP module 6 by serial ports RS232, is connected with CDMA module 7 by Ethernet interface simultaneously, and DSP module 6 is connected with transducer 8 by serial ports RS232; Solar powered module 1 provides power supply for the front end intelligent video server.Surveillance center 9 is long-range PC, adopts the VC++ programming to realize long-distance video broadcast and controlled function.

Transducer 8 adopts the Temperature Humidity Sensor HY-1 that goes up walrus east meteorologic instrument Science and Technology Ltd. in the present embodiment, DSP module 6 adopts the TMS320DM642 chip of TI, VD 100 video distributors that video distributor 4 adopts Guangdong to pacify group deeply, IP module 5 adopts the Haikang prestige to look the IP video processor, The Cloud Terrace 2 is digital heavy universal turning bench BW-Y50, be selected from Shenzhen hundred million and pacify into Science and Technology Ltd., camera 3 adopts the product of the SU-2006 of SUNRISE company.

Video distributor 4 input voltages are direct current 12V in the present embodiment, are used to realize that the signal to camera 3 is gathered duplicates, the identical vision signal of output two-way.Offer IP module 5 and DSP module 6 respectively.The Cloud Terrace 2 carrying cameras 3 can realize monitoring the adjusting at visual angle, function such as realize the location at monitoring visual angle according to the actual requirements and cruise.

IP module 5 video compression codings adopt H.264 video compression standard in the present embodiment.H.264 be the common compression of digital video form of new generation after MPEG4 that proposes of International Organization for Standardization and International Telecommunication Union, it has promptly kept, and the advantage and the elite of compress technique had the incomparable many advantages of other compress techniques again in the past.

DSP module 6 is selected the DM642 chip of TI for use in the present embodiment, integrated peripheral hardwares such as SDRAM, FIASH, UART and network interface.Because network interface is provided by IP module 5, so do not develop use in DSP module 6.SDRAM is the main memory of DSP module 6, and present embodiment has been expanded the SDRAM of 32MBytes outside the DSP sheet, and data width is 64bits, is positioned at the CE0 subspace of EMIF, and program and data deposits when being used for system's operation.UART is the serial data interface of DSP module 6, and present embodiment adopts TL16C752B to realize the two-way asynchronous serial port outside the DSP sheet, is positioned at the CE1 subspace of EMIF, is used for the information interaction of DSP module 6 and ambient systems and equipment.Present embodiment has been expanded the 8bits asynchronous sram FLASH of 4MBytes outside dsp chip, be positioned at the CE1 subspace of EMIF, is used to import and load the configuration information of CPLD and deposits program and data when system's power down.

DM642 have 3 configurable video ports (VP0, VP1, VP2).These video ports provide direct interface for public video decoding/encoding device.The DM642 video port support multiple solution and video standard (for example, CCIR601, ITU-BT.656, BT.1120, SMPTE125M, 260M, 274M, 296M).These three video ports are configurable, and Video Capture and/or video display modes can be provided.Each video port is made up of two passages--and A and B, these two passages have separable 5120 bytes and catch/display buffer.

DSP module 6 has high performance video decoding chip and coding chip in the present embodiment, video decoding chip adopts TVP5150PBS, can convert NTSC and PAL vision signal to digital difference signal (YUV4:2:2), support two to meet video or a S cross-talk input.Output format is ITU-RBT.656, and supports senior VBI function.The configuration of TVP5150PBS is finished by the iic bus of standard.Video coding chip adopts SAA7121H, and video encoder SAA7121H supports the video coding of NTSC and PAL form, and graphical analysis result's output shows when being used for product development.The digital video of ITU-RBT.656 form is supported in its input.SAA7121H has 1 road composite video (CVBS) output and 1 road super video (S-Video, Y/C) output.The configuration of SAA7121H also is to finish by the iic bus of standard.

Present embodiment adopts IP module+DSP Module Design scheme, and its essence is the bi-processor architecture of DAVINCI+DSP.In conjunction with the advantage of IP module 5 and DSP module 6, thereby realized the real-time video monitoring function of high-quality, high reliability, and device structure is simple, is convenient to the mounting, commissioning and maintenance management.IP module 5 adopts H.264 video coding technique, has reduced video stream data, has improved the efficient of transmission greatly; Video image analysis and treatment technologies such as the 6 automatic background renewals of DSP module, motion detection and feature extraction provide round-the-clock flame to detect; Utilize the wireless transmission of CDMA module 7, do not need the wired network of traditional video surveillance device to connect, widely applicable, and also the monitoring scene utilizes The Cloud Terrace can carry out multi-angle as required, monitoring is in all directions followed the tracks of, and the scope of monitoring is big.

In DSP module 6, adopt hardware interrupts (HWI) to realize response in the present embodiment to IP module 6 serial datas, in HWI, read serial data and trigger SWI, be encapsulated into serial data in the MSG message body in SWI and trigger TSK, each TSK is the shared processing serial data under the coordination of SEM signal lamp.In IP module 5, utilize Linux multithread scheduling mechanism, block the serial data of wait reception by creating the serial data receiving thread, and utilize mutual exclusion lock to realize sharing serial data between each thread from DSP module 6.

The concrete course of work of fire remote wireless monitoring device is as follows in the present embodiment:

1. before the operation of this fire remote wireless monitoring device, solar powered module provides safe and reliable multistage DC power supply for the front end intelligent video server.Camera is installed among the The Cloud Terrace, can carry out the video image acquisition of 360 degree rotations.

2. intelligent video server starts, the CDMA router-module connection network of reaching the standard grade, and intelligent video server is called out to long-range PC 9 through the CDMA module by the Ethernet interface of IP module, sets up and the communicating to connect of long-range PC;

3. long-range PC is by forest fire video monitoring layout setting video coding parameter, and control command reaches the IP module by the CDMA module, carries out the initialization of coding parameter;

4. startup video acquisition.T at any one time, video distributor are that IP module and DSP module improve the identical video data of two-way.The IP module receives the video stream data from video distributor, H.264 encodes, and the video flowing behind the coding is passed to the cdma wireless router-module through the RJ45 network interface, is wirelessly transmitted to the decoding broadcast that long-range Surveillance center realizes video flowing by cdma network; Simultaneously, the DSP module is carried out image analysis processing (flame detection) to the video stream data from video distributor;

5. the flame detection algorithm that moves in the DSP module confirms to have the generation of the condition of a fire, determines position and rank that the condition of a fire takes place; Warning message is reached the IP module through the RS232 serial ports, and packing sends warning message through the CDMA module to long-range PC (Surveillance center) to the IP module to warning message.

6. Surveillance center receives warning message, and the condition of a fire is confirmed and handled, and can regulate the azimuth and the lens parameters of The Cloud Terrace simultaneously according to the video image at scene, realizes the accurate location to condition of a fire zone.In monitor procedure, Surveillance center can realize video playback, meteorologic parameter inquiry, The Cloud Terrace status poll, fire alarm, cradle head control and camera lens controlled function.

7. when Surveillance center sends the control command that the The Cloud Terrace azimuth changes by monitoring interface (or The Cloud Terrace status poll, meteorological data inquiry), control command stream reaches the IP module by the CDMA module, the IP module reaches the DSP module then, the DSP module to the The Cloud Terrace transmitting control commands, changes the attitude (or inquiry The Cloud Terrace attitude) of The Cloud Terrace through its RS232 serial ports.

8.DSP module will be monitored on-the-spot humiture meteorological data (from transducer) and the operating state of The Cloud Terrace and camera is passed to the cdma wireless router-module through the IP module by the RJ45 network interface, be transferred to long-range Surveillance center by cdma wireless;

The above only is of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being made and be equal to alternatively etc. all should be included in protection scope of the present invention.

Claims

1. based on the forest fire wireless remote monitoring device of DSP/IPMOD intelligent video server, comprise front-end server and Surveillance center; Front-end server comprises IP module, DSP module, CDMA module, video distributor, camera, The Cloud Terrace, solar powered module and transducer; Front-end server is characterized in that by network and Surveillance center's wireless connections: The Cloud Terrace carrying cam movement, and the control end of The Cloud Terrace is connected with the control end signal of DSP module; The camera signals output is connected with the video distributor signal, one tunnel output signal of video distributor is connected with the IP module by signal, another road output signal is connected with the video inputs mouth of DSP module, the IP module is connected by serial ports RS232 with the DSP module, the IP module is connected by Ethernet interface with the CDMA module, transducer is connected by serial ports RS232 with the DSP module, and solar powered module provides power supply for front-end server; Front-end server has the bi-processor architecture of DSP and IPMOD, under the DSP module, utilizes the DSP/BIOS scheduling flame analysis algorithm based on the RF5 framework to carry out the flame detection;

Described transducer adopts Temperature Humidity Sensor HY-1, the DSP module adopts the TMS320DM642 chip of TI, VD 100 video distributors that video distributor adopts Guangdong to pacify group deeply, the IP module adopts the Haikang prestige to look the IP video processor, The Cloud Terrace is digital heavy universal turning bench BW-Y50, and camera adopts the product of the SU-2006 of SUNRISE company;

Described Surveillance center is long-range PC, adopts the control of VC++ programming realization to front-end server.