CN101651814A - Embedded video server based on ARM framework and DSP framework - Google Patents

Abstract

The invention discloses an embedded video server based on an ARM framework and a DSP framework, belonging to the technical field of network video. The embedded video server comprises an ARM9 microprocessor, a TI C6000 DSP chip, a DDR2 SDRAM memory, a Flash memory, an SATA hard disk and a high-speed Ethernet controller, and is characterized in that the ARM9 microprocessor is respectively connectedwith the TI C6000 DSP chip, the DDR2 SDRAM memory, the Flash memory, the SATA hard disk and the high-speed Ethernet controller, and is responsible for operating an operation system and a user program.The invention provides an embedded video server which features reasonable design, high cost performance and good effect, and can be widely used in the following monitoring occasions, such as coal mines, hospitals, schools, road traffic, subdistricts and wine shops and the like; the invention constructs a remote monitoring system, and can prevent the wiring work in traditional monitoring solutions, thus realizing plug and play and reducing the complexity of network configuration.

Description

Embedded video server based on ARM and DSP framework

(1) technical field

The present invention relates to a kind of embedded video server, belong to the Internet video technical field based on ARM and DSP framework.

(2) background technology

Embedded system is application-centered, and based on computer technology, but the software and hardware cutting is applicable to application system, and function, reliability, cost, volume, power consumption is had the dedicated computer system of strict demand.It generally is made up of part such as four of embedded microprocessor, peripheral hardware equipment, embedded OS and application program of user etc., is used to realize the functions such as control, supervision or management to other equipment.Embedded video server then be a kind of to audio, video data gather, compress, the dedicated computing machine equipment of storage and Network Transmission, can make up long distance control system, be widely used in monitoring occasions such as finance, traffic, industry, family, and various fields such as video conference and video telephone.In video monitoring system, video server has been realized digitlization, coding/compression and the networking of front end audio frequency, video and other signal, and concrete function comprises access, coding/compression, the transmission of control point analog audio-video information and warning message and to the control of ancillary equipment such as video camera, The Cloud Terrace, matrix.Above-mentioned data send to central management platform by Ethernet through after the processing of encoder, are distributed to each client, Video Decoder and video recording memory device by central management platform.Be " a kind of network video server " that is mentioned in the patent of invention of CN101094386 for example at publication number, this video server is owing to adopted single microprocessor mode, audio/video coding compression and other logic functions are finished by this single microprocessor, and its performance and flexibility are lower.

(3) summary of the invention

For overcoming the defective of prior art, the invention provides a kind of reasonable in design, cost performance is high, result of use is good embedded video server based on ARM and DSP framework.

The object of the present invention is to provide a kind of embedded video server, it can be used for making up long distance control system, is widely used in comprising the colliery, monitoring such as hospital, school, road traffic, sub-district, hotel occasion; Its application advantage is apparent, and can exempt the installation work in the tradition monitoring solution, has realized plug and play, has reduced the complexity of network configuration simultaneously.

Technical solution of the present invention realizes in the following way.

A kind of embedded video server based on ARM and DSP framework, comprise ARM9 microprocessor, TI C6000 dsp chip, DDR2 SDRAM memory, Flash memory, SATA hard disk, Fast Ethernet controller, it is characterized in that the ARM9 microprocessor is connected with TI C6000 dsp chip, DDR2SDRAM memory, Flash memory, SATA hard disk, Fast Ethernet controller respectively, be responsible for operation system and user program.

Above-mentioned TI C6000 dsp chip is connected with the ARM9 microprocessor.Because the hardware configuration that DSP is special, special hardware multiplier and special instruction, make it can realize various Digital Signal Processing apace and satisfy various high real-time requirements, the TI C6000 dsp chip among the present invention is used to carry out coding-decoding operation H.264 at a high speed.

Above-mentioned DDR2 SDRAM memory links to each other with the ARM9 microprocessor.Because the significant advantage of aspects such as data transmission rate, time-delay, power consumption, the present invention adopts DDR2 SDRAM memory to be used for the data such as original image, reference frame and coding parameter of memory encoding process.

Above-mentioned Flash memory links to each other with the ARM9 microprocessor, is used for storage operating system, file system and application program.

Above-mentioned SATA hard disk links to each other with the ARM9 microprocessor, is used for the audio, video data after the store compressed.

Above-mentioned Fast Ethernet controller links to each other with the ARM9 microprocessor, is used for the audio, video data packing after H.264 encoding is sent to Ethernet.

A kind of operation method of the embedded video server based on ARM and DSP framework, step is as follows:

(1) beginning;

(2) system powers on;

(3) hardware initialization;

(4) IMAQ and A/D conversion;

(5) image compression encoding;

(6) code stream packing and hard-disc storage then change step (4) over to.

The invention provides a kind of embedded video server of high performance-price ratio, solved problem and use application-specific integrated circuit very flexible and the too high problem of cost that independent dependence DSP carries out the inefficiency of H.264 encoding and decoding.And video server of the present invention has the advantage that volume is little, reliability is high, environmental suitability is strong, meets the IEEE802.3 standard, can support the directly transmission on Ethernet of digitlization video flowing when guaranteeing picture quality.In addition, operation standard Linux operating system on the ARM9 microprocessor, this just makes the present invention have versatility, flexibility and the extensibility of height, can change its concrete function according to actual needs.The present invention exempts the installation work in the tradition monitoring solution, has realized plug and play, has reduced the complexity of network configuration simultaneously, can be widely used in comprising the colliery, monitoring such as hospital, school, road traffic, sub-district, hotel occasion.

(4) description of drawings

Fig. 1 is the hardware configuration schematic diagram of apparatus of the present invention.

Wherein: 1, ARM9 microprocessor, 2, TI C6000 dsp chip, 3, DDR2 SDRAM memory, 4, the Flash memory, 5, the SATA hard disk, 6, the Fast Ethernet controller.

Fig. 2 is the outside connection diagram of apparatus of the present invention.

Wherein: 7, analog video camera, 8, A/D converter, 9, video server, 10, the internet the Internet, 11, system client.

Fig. 3 is apparatus of the present invention operation method block diagram.

Wherein: 12-17 has represented each step of this method.

(5) embodiment

Further specify below in conjunction with drawings and Examples, but be not limited thereto.

Embodiment 1:(device embodiment)

Apparatus of the present invention embodiment comprises ARM9 microprocessor 1, TI C6000 dsp chip 2, DDR2 SDRAM memory 3, Flash memory 4, SATA hard disk 5, Fast Ethernet controller 6 shown in Fig. 1-2, it is characterized in that ARM9 microprocessor 1 is connected with TI C6000 dsp chip 2, DDR2 SDRAM memory 3, Flash memory 4, SATA hard disk 5, Fast Ethernet controller 6 respectively, be responsible for operation system and user program.

Above-mentioned TI C6000 dsp chip 2 links to each other with ARM9 microprocessor 1.Because the hardware configuration that DSP is special, special hardware multiplier and special instruction, make it can realize various Digital Signal Processing apace and satisfy various high real-time requirements, the TI C6000 dsp chip among the present invention is used to carry out coding-decoding operation H.264 at a high speed.

Above-mentioned DDR2 SDRAM memory 3 links to each other with ARM9 microprocessor 1.Because the significant advantage of aspects such as data transmission rate, time-delay, power consumption, the present invention adopts DDR2 SDRAM memory to be used for the data such as original image, reference frame and coding parameter of memory encoding process.

Above-mentioned Flash memory 4 links to each other with ARM9 microprocessor 1, is used for storage operating system, file system and application program.

Above-mentioned SATA hard disk 5 links to each other with ARM9 microprocessor 1, is used for the audio, video data after the store compressed.

Above-mentioned Fast Ethernet controller 6 links to each other with ARM9 microprocessor 1, is used for the audio, video data packing after H.264 encoding is sent to Ethernet.

Embodiment 2:(method embodiment)

Operation method in apparatus of the present invention as shown in Figure 3, step is as follows:

12, beginning;

13, system powers on;

14, hardware initialization;

15, IMAQ and A/D conversion;

16, image compression encoding;

17, code stream packing and hard-disc storage then change step 15 over to.

Claims (2)

1, a kind of embedded video server based on ARM and DSP framework, comprise ARM9 microprocessor, TI C6000 dsp chip, DDR2 SDRAM memory, Flash memory, SATA hard disk, Fast Ethernet controller, it is characterized in that the ARM9 microprocessor is connected with TI C6000 dsp chip, DDR2 SDRAM memory, Flash memory, SATA hard disk, Fast Ethernet controller respectively, be responsible for operation system and user program.

2, a kind of operation method of the embedded video server based on ARM and DSP framework as claimed in claim 1, step is as follows:

(1) beginning;

(2) system powers on;

(3) hardware initialization;

(4) IMAQ and A/D conversion;

(5) image compression encoding;

(6) code stream packing and hard-disc storage then change step (4) over to.

Images