CN102378133A - System and method for processing multimedia information of sensor network based on OMAP (Open Multimedia Application Platform) - Google Patents
System and method for processing multimedia information of sensor network based on OMAP (Open Multimedia Application Platform) Download PDFInfo
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Abstract
The invention discloses a system and method for processing multimedia information of a sensor network based on an OMAP (Open Multimedia Application Platform). The system for processing multimedia information of the sensor network based on the OMAP is characterized by comprising an ARM (Advanced RISC Microprocessor) and a DSP (Digital Signal Processor) of the OMAP, wherein the ARM is mainly used for controlling the whole system; the DSP is mainly used for processing the multimedia information; and the ARM communicates with the inner part of the DSP through sharing the RAM; a sensor information module, a video information module and an audio information module which are connected with the DSP processor under the control of the ARM microprocessor; and an intermediate- and high-speed transmission interface module, a serial port module, a power management module, a GPS (Global Position System) module, a touch screen module, an upper computer and a WIFI (Wireless Fidelity) module which are connected with the ARM. The system and method for processing multimedia information of the sensor network based on the OMAP disclosed by the invention adopt an OMAP dual-core structure with excellent performance so that multimedia information such as audio/video and various sensor data can be acquired, sent, received and processed in real time; and the system and method for processing multimedia information of the sensor network based on the OMAP disclosed by the invention can be widely applied to fields, such as military reconnaissance, public security and the like as well as have very strong practicability.
Description
Technical field
The present invention relates to sensing network technology field, specifically a kind of sensing net multi medium information treatment system and method based on OMAP (Open Multimedia Applications Platform, OMAP).
Background technology
Sensor network is as the interconnected important support technology of thing thing; To bring brand-new business for mobile communication; Have huge using value in fields such as military surveillance, public safety, industrial monitoring, precision agriculture, environmental monitoring, health care, intelligent transportation, Smart Homes, can powerful power-assisted be provided for economic development and construction of harmonious society.In recent years, the demand to multimedia application in the wireless sense network application increases greatly, and such as in intelligent transportation, during target monitoring etc. were used, the equipment of originally single information processing, single task perception can not satisfy the demands.
Along with the multimedia messages of big data quantity, large information capacity is handled applied more and more, also increasingly high to the requirement of processor.OMAP is the dual core processor of a high-performance low-power-consumption of TI (Texas Instruments, Texas Instrument) company, integrated ARM microprocessor and dsp processor, and dsp processor also comprises multimedia unit.Compare in the past monokaryon arm processor, OMAP has outstanding Digital Signal Processing function, and does not need to add in addition dsp chip, and handling property is superior.
Before, the someone did some the single application such as image node based on the radio multimedia sensor network of OMAP, but it can only handle single multimedia messages, and can not accomplish effective processing to other multimedia messagess; Also the someone did based on the sensing net multimedia messages of ARM+DSP and handled, but ARM is two chips that separate with DSP, and performance is far away less than the OMAP family chip that is used for handling multimedia messages specially of integrated double-core.
Some defectives and restriction to above-mentioned application demand and application in the past the present invention proposes the design concept based on the sensing net multi medium information treatment system of OMAP.System provided by the invention both can do the base station in sensor network; Also can make node; Have that big capacity information obtains, high-performance treatments, high speed, multidimensional, join abilities such as distributed perception etc. more, can be widely used in various fields such as above-mentioned military surveillance, public safety, like large scale low flyer real-time tracking, monitoring; Emergent and the intelligent transportation of large size city anti-terrorism, extensive area comprehensive monitoring (earthquake, tsunami) etc.
Summary of the invention
The objective of the invention is to sensing net multi medium information treatment system and method, it is characterized in that: adopt ARM and the DSP dual-core architecture of OMAP, provide a kind of and can handle multimedia messagess such as video, audio frequency and various sensing datas in real time based on OMAP.
A kind of sensing net multi medium information treatment system provided by the invention based on OMAP; It is characterized in that: ARM (the Advanced RISC Microprocessor that comprises OMAP; Senior reduced instruction set computer microprocessor) microprocessor 1 and DSP (Digital Signal Processor; Digital signal processor) processor 3, and wherein ARM microprocessor 1 mainly is used for the control of whole system, and dsp processor 3 mainly is used for carrying out multimedia messages and handles; ARM microprocessor 1 carries out intercommunication through RAM Shared (Random Access Memory, random access memory) 2 and dsp processor 3; Be included in sensor information module 4, video information module 5, audio-frequency information module 6 that 1 control of ARM microprocessor links to each other with dsp processor 3 down; Also comprise the high speed coffret module 7, serial port module 8, memory 9, power management module 10, GPS module 11, touch screen module 12, host computer 13, the WIFI module 14 that link to each other with ARM microprocessor 1.
Described sensor information module 4 comprises sensor information input interface 15, signal measurement amplifier 16, A/D (analog signal/digital signal) transducer 17 that links to each other successively, and wherein A/D converter 17 links to each other with the dsp processor 3 of OMAP under 1 control of the ARM of OMAP microprocessor.
Described video information module 5 comprises composite video input interface 18, Video Decoder 19, video output interface 20, and Video Decoder 19 links to each other with the dsp processor 3 of OMAP under 1 control of the ARM of OMAP microprocessor with video output interface 20.
Described audio-frequency information module 6 comprises audio-frequency information input interface 21, power amplifier 22, audio-frequency information output interface 23, and its intermediate power amplifier 22, audio-frequency information input interface 21 link to each other with the dsp processor 3 of OMAP under 1 control of the ARM of OMAP microprocessor.
Described high speed coffret module 7 comprises the RF module interface 25 of data buffer 24,80pin, and wherein data buffer 24 links to each other with the ARM microprocessor 1 of OMAP.
Described serial port module 8 comprises serial converter 26, DB9 serial port 27, and wherein serial converter 26 links to each other with the ARM microprocessor 1 of OMAP.
Described power management module 10 comprises 5V DC power supply 28, level translator 29, power supervisor 30, and wherein power supervisor 30 links to each other with the ARM microprocessor 1 of OMAP.
Described touch screen module 12 comprises data buffer 31, touch screen controller 32, touch-screen 33, and wherein data buffer 30 links to each other with the ARM microprocessor 1 of OMAP.
Described host computer 13 carries out two-way communication through ethernet controller 34, RJ45 interface 35 with ARM microprocessor 1, and wherein ethernet controller 33 links to each other with the ARM microprocessor 1 of OMAP.
Described memory 9 provides internal memory and memory space when being used for working to native system.
Described GPS (Global Positioning System, global positioning system) module 11 is used for the location navigation of system.
Described WIFI (wireless fidelity, Wireless Fidelity) module 14 can make system insert public network.
Between described sensor information module 4, video information module 5, audio-frequency information module 6, high speed coffret module 7, serial port module 8, memory 9, GPS module 11, touch screen module 12, host computer 13, the WIFI module 14 is independently, no any contacting directly.
Described power management module 10 provides power supply for sensor information module 4, video information module 5, audio-frequency information module 6, high speed coffret module 7, serial port module 8, memory 9, GPS module 11, touch screen module 12, WIFI module 14.
The present invention has the following advantages with respect to prior art:
1, the present invention has the multichannel Peripheral Interface, multimedia messagess such as access video, audio frequency and various sensing datas that can be flexible.
2, the present invention adopts the OMAP3530 dual-core architecture, and ARM nuclear is 600MHz Cortex-A8 nuclear, and 430MHz DSP nuclear is TMS320C64x nuclear, and handling property is far superior to the performance of single core processor, and stability is better, for hardware is laid good basis.
3, the present invention both can regard the base station in sensor network, also can regard node.During as the base station, except handling the various information that transmit this locality, also through high speed transport module interface, utilize radio-frequency module to receive the multimedia messages that each node transmits, and can transmit various command and give node, reach the purpose of Long-distance Control; As the present invention during as node, handle can handle multimedia messages after the local information after through high speed transport module interface, utilize radio-frequency module to pass to the base station.
4, the present invention can utilize host computer or touch-screen to show various information in real time, can accomplish real-time monitoring to various environment scene; Can also send various command to base station or node through host computer or touch-screen simultaneously, can reach the purpose of Based Intelligent Control.
5, collection of the present invention, transmission, reception and processing multimedia messages have high real-time, can in time tackle various emergency situations.
6, the present invention can insert public network through the WIFI expanded function.
7, compare with the messaging device of in the past single application, integrated level of the present invention is high, cost is reduced greatly, and range of application is wider.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is a sensor information modular structure sketch map of the present invention;
Fig. 3 is a video information modular structure sketch map of the present invention;
Fig. 4 is an audio-frequency information modular structure sketch map of the present invention;
Fig. 5 is the structural representation of high speed coffret module of the present invention;
Fig. 6 is the structural representation of serial port module of the present invention;
Fig. 7 is the structural representation of power management module of the present invention;
Fig. 8 is the structural representation of touch screen module of the present invention;
Fig. 9 is the structural representation with the host computer relevant portion of the present invention.
Figure 10 is a software flow pattern of the present invention.
Embodiment
Below in conjunction with accompanying drawing and execution mode the present invention is described further.
As shown in Figure 1; The ARM microprocessor (1) and dsp processor (3) that comprise OMAP; Wherein the ARM microprocessor (1) of OMAP mainly is used for the control of whole system; Dsp processor (3) mainly is used for carrying out multimedia messages and handles, and ARM microprocessor (1) is through RAM Shared (2) and dsp processor (3) intercommunication; Be included in sensor information module (4), video information module (5), audio-frequency information module (6) that ARM microprocessor (1) control links to each other with dsp processor (3) down; Also comprise the high speed coffret module (7), serial port module (8), memory (9), power management module (10), GPS module (11), touch screen module (12), host computer (13), the WIFI module (14) that link to each other with ARM microprocessor (1).What core cell of the present invention adopted is the dual-core architecture of the OMAP3530 of TI company: Cortex-A8ARM nuclear and TMS320C64x DSP nuclear, and ARM nuclear carries out two-way communication with DSP nuclear through RAM Shared, reaches the normal operation of whole system with this.
Face each part of the present invention and Module Design down and carry out explanation one by one.
1). the sensor information Module Design
Because the semaphore of sensor acquisition is more weak; So before carrying out the A/D conversion, must amplify signal earlier, signal measurement amplifier (16) adopts the precision instrument amplifier AD8221 of AD (Ya De promise semiconductor) company; AD8221 has characteristics such as high accuracy, low-power consumption, low noise, peripheral circuit be simple; Only need an external resistance just can realize the gain between 1 to 1000, be usually used in the high-precision data acquisition system, as the preamplifier of various small-signals.A/D converter (17) adopts the AD7689 of AD company, and AD7689 is ADC (Analog to Digital Converter, analog signal conversion the is a digital signal) chip of a 16 precision, 8 passages, and dynamic range is up to 93.5dB, and speed is 250K/S.After the A/D conversion, under the control of the ARM of OMAP microprocessor (1), give the dsp processor (3) of OMAP and handle, as shown in Figure 2.
2). the video information Module Design
Dsp processor (3) is handled vision signal for ease, convert the video analog signal that collects into standard compliant digital video signal.The Video Decoder (19) that the present invention adopts is the TVP5146 of TI company; TVP5146 is a Video Decoder with 4 tunnel 10 A/D conversions of copy protection measuring ability; Support NTSC (National Television Standards Committee; National Television System Committee)/Video processing of PAL (Phase Alternating Line, line-by-line inversion)/SECAM (Sequentiel Couleur A Memoire transmits colored and storage in order) standard.After the TVP5146 decoding, obtain digital video signal; Under the control of the ARM of OMAP microprocessor (1), giving the dsp processor (3) of OMAP handles; The processed video signal both can show through touch-screen or host computer; Also can pass through video output interface (20) output, as shown in Figure 3.
3). the audio-frequency information Module Design
The audio frequency input information is directly given dsp processor (3) and is carried out the encoding and decoding processing under the control of the ARM of OMAP microprocessor (1); But sound output is too little, pass through power amplifier (22) amplification and could export afterwards.The power amplifier (22) that the present invention adopts is the LM4889 of National Semiconductor; LM4889 is the power amplifier of a 1W; The distortion of power output harmonic wave has only 1% when 3.3V; The present invention adopts two LM4889 that the left and right acoustic channels of audio frequency output is carried out power amplification, just passes through audio-frequency information output interface (23) output afterwards, and is as shown in Figure 4.
4). high speed coffret Module Design
High speed coffret module mainly is used for carrying out the multimedia messages transmission of large information capacity, big data quantity, and the external radio frequency transmission module transmission rate of the present invention can reach 4M/S, can satisfy the transmission of high speed sensing net multimedia messages fully.Because ARM microprocessor (1) I/O mouth output voltage has only 1.8V; And the I/O mouth of the RF module that the high speed coffret is connect is to be operated in 3.3V; In order to improve driving force, the present invention has added data buffer (24) between the RF module interface (25) of ARM microprocessor (1) and 80pin.The data buffer (24) that the present invention adopts is the 74ALVC16245DGG chip of PHILIPS Co., adopts two 74ALVC16245DGG chips that the output signal line of ARM microprocessor (1) is 3.3V from the 1.8V lifting.The logical signal that interface comprised of 80pin is EMIF (External Memory Interface; External memory interface) parallel bus and some GPIO (General Purpose Input Output; General input and output) control line is comprising high speed transport module mains switch, reset signal; 5V power supply supply lines etc., as shown in Figure 5.
5). the design of serial port module
Serial port module (8) has two purposes in the present invention: first purposes is a debugging software, and second purposes is to carry out serial communication as expansion mouth and other equipment that contains serial ports.ARM microprocessor (1) control serial converter (26) communicates with the external world through DB9 serial port (27), mainly is to communicate by letter with PC (personal computer) machine.The serial converter (26) that the present invention adopts be the MAX3218 of U.S. letter company, and DB9 serial port (27) be mother's mouth, and is as shown in Figure 6.
6). the design of power management module
What power supply among the present invention adopted is 5V DC power supply (28), the part that each module of the present invention is directly used the 5V power supply seldom, therefore most of 3.3V power supply that uses and following needs carry out level conversion through level translator (29).The level translator (29) that the present invention adopts is the TPS54331 of TI company, converts 3.3V into from 5V.Because OMAP3530 needs a power supervisor (30) to come to manage and the system clock management for OMAP3530 carries out power management, powers on and resets, the power supervisor among the present invention (30) adopts the TPS65930 of TI company.TPS65930 is a high performance power management chip, can power management be provided for system, and Clock management also comprises general functions such as serial USB (USB) high-speed transceiver.TPS65930 is the kernel of OMAP3530 and the voltage that other parts provide 1.2V and 1.8V respectively, and is as shown in Figure 7.
7). the design of touch screen module
Because ARM microprocessor (1) I/O mouth output voltage has only 1.8V; And touch-screen (33) needs the operating voltage of 3.3V; Therefore the present invention has used data buffer (30) between ARM microprocessor (1) and touch-screen (33); Make the 1.8V of ARM microprocessor (1) I/O mouth output become 3.3V, data buffer of the present invention (31) also is to use the 74ALVC16245DGG of PHILIPS Co..Simultaneously; Touch-screen also needs a touch screen controller (31); That touch screen controller of the present invention (31) adopts is the TSC2046IPW of TI company, and TSC2046IPW is the 4 line touch screen controllers of a low-voltage I/O, and it can be measured temperature, touch pressure on the sheet; Can precisely locate touch panel coordinates, as shown in Figure 8.
8). the design of host computer relevant portion
ARM microprocessor (1) carries out two-way communication through ethernet controller (34), RJ45 interface (35) with host computer successively; Host computer sends fill order through RJ45 interface (35) to ARM microprocessor (1), receives ARM microprocessor (1) simultaneously and passes the information of coming and store.That the ethernet controller among the present invention (34) uses is SMSC (Smart Mixed-Signal Connectivity; The connection of Intelligent Hybrid signal) LAN9220 of company, LAN9220 are the small-sized 10/100M ethernet controllers of 16 Non-PCI (non-external equipment is interconnected) of a support variable voltage I/O and automatic port counter-rotating.LAN9220 is exclusively used in performance, flexibility, and integrated convenience and system cost have the Embedded Application of strict control, and LAN9220 meets IEEE 802.3 and IEEE 802.3u standard fully, and is as shown in Figure 9.
9). the design of memory
Because the ARM microprocessor (1) of OMAP3530 has only the metadata cache of 16K, the L2 buffer memory of 256K, dsp processor (3) also have only the L1P program RAM of 32K, the L1D data RAM of 80K, and the L2 of 32K shares SRAM, and therefore the L2ROM of 16K needs extra memory (9).The extra memory (9) that the present invention adopts is the MT29C4G48MAZAPAKD-5IT of U.S. magnesium light company.MT29C4G48MAZAPAKD-5IT is the chip of a integrated DDR and NAND Flash; Wherein DDR is 256M; NAND Flash is 512M; Because multimedia messagess such as video, audio frequency and various sensing datas are all passed to the host computer storage at last, so the internal memory of the memory space of 512M and 256M enough satisfies the needs of using far away.
10) .GPS Module Design
The GPS Module Design is to be used for system is carried out the track navigation location.The GPS locator that adopts among the present invention is the GSD4E chip of CSR (Cambridge Silicon Radio) company.A chip based on the satellite enhanced system of GSD4E has high sensitivity navigation engine, 48 tracking verification passages.GSD4E is a built-in CPU (Central Processing Unit, central processing unit) need not through primary processor, just can accomplish and locate perception.The GPS filter of the external 2.4G of GSD4E carries out filtering, and the model of GPS filter is FIL202856561, and be connected at last and receive on the coaxial connector, the external coaxial line of coaxial connector, the model of coaxial connector is MM8430 in the present invention.
11) .WIFI Module Design
The WIFI Module Design is to be used for doing expanded function, makes system pass through WIFI and inserts public network.The WIFI chip that adopts among the present invention is the WG7310 chip of TI company.Functions such as WLAN, bluetooth, FM that the WG7310 chip is integrated; Support the 2.4G channel; Support different frequency ranges according to different application; Because WIFI of the present invention adopts agreement IEEE 802.11b, so support frequency range 11Mbps.WG7310 chip to connect coaxial connector MM8430,2.4G Surface Mount antenna successively among the present invention.
Experimental verification behind the first theory analysis is adopted in research of the present invention generally, at first accomplishes the planning of whole project block diagram, and then whole project is divided into several junior units; Again to individual junior unit technical research; Divide the work to develop, last on-line debugging is integrated, and the practical implementation method is following.
1). master-plan: tentatively propose the general frame of system according to the performance requirement of system, software and hardware is divided, selected flush bonding processor, operating system and development platform from function.Specifically; General frame of the present invention is the center with the embedded system, carries out various function expansion to realize designing requirement, comprises the software design on the PC; Hardware mainly is ARM microprocessor and dsp processor; Adopt the OMAP dual-core architecture among the present invention, embedded OS adopts (SuSE) Linux OS, and development platform is used ubuntu10.04 and CCS4.x translation and compiling environment.
2). hardware detailed design: the schematic block circuit diagram of tentatively drawing out system hardware according to the requirement of master-plan; And then schematic block circuit diagram is divided into each sub-block diagram, and each sub-block diagram is analyzed and Interface design, respectively each sub-block diagram is carried out the hardware type selecting; Draw the circuit theory diagrams of each sub-block diagram; At last the circuit theory diagrams of each sub-block diagram are integrated the circuit theory diagrams of drawing system, drawn PCB figure according to schematic diagram again, this has just accomplished the Preliminary design of system hardware.
3). hardware production: according to circuit theory diagrams and PCB (Printed Circuit Board; Printed circuit board) figure carries out making sheet and welding component; In making sheet and welding process, want strictness to control each link well; Avoided short circuit as far as possible, opened circuit, mistakes such as rosin joint, leakage weldering, it is correct to guarantee that hardware connects, and improves the debugging efficiency of system.
4). hardware testing: after hardware production finishes, debug hardware circuit, guarantee logically to connect correctly between the components and parts, write corresponding testing software, hardware testing is the important step of design.
5). Software Detailed Design: the whole software plan that carries out system according to the system overview designing requirement; Software work is carried out further thin the division; Software is subdivided into little software module, is that divide the work the unit with each software module, and concrete software flow pattern sees also Figure 10.
The concrete operating procedure of software flow pattern is following:
Power on to system earlier, system carries out initialization, just controls whole system operation through touch-screen afterwards.When native system during, receive audio/video information and sensor information that child node transmits, through clicking touch-screen as the base station in the sensing net; Receive the information of needed node; After handling, can see the real time information of seeing that on touch-screen node transmits, when needs are transmitted storage; Can pass to demonstration and storage on the PC to information through network interface, can strengthen user's operability greatly like this.Simultaneously, can send order to node through touch-screen.When native system during as child node, can gather various multimedia messagess, both can accomplish local the processing, also can be transmitted to the base station and handle.When needs GPS locatees, be equally through clicking touch-screen, obtain GPS information, being presented on the touch-screen.Insert public network as demand, can call WIFI, system and public network are coupled together through clicking touch-screen.
6). software is realized: after the software division of labor, each software group realizes according to the software that the software design book carries out each functional module, and carries out the software preliminary debugging respectively.
7). software test: after each functional software is write successfully, will carry out whole software and integrate, and carry out the allomeric function test, adjust, after function reaches requirement, also will carry out integration test to the performance and the stability of software according to test result.
8). software and hardware is integrated: after accomplishing design of hardware and software, carry out the system integration, on-line debugging to software and hardware; The runnability of test whole system; According to the result of all-round property testing, local adjustment design of hardware and software is so that the stability of a system and efficient reach best.
According to above research and design method, developed the software and hardware framework of the integral body of system, on the basis of this framework, carry out performance test, constantly carry out the software and hardware adjustment, finally accomplish the design of system.
Claims (4)
1. sensing net multi medium information treatment system based on OMAP; It is characterized in that: the ARM microprocessor (1) and dsp processor (3) that comprise OMAP; Wherein the ARM microprocessor (1) of OMAP is used for the control of whole system; The dsp processor of OMAP (3) is used to carry out multimedia messages to be handled, and ARM microprocessor (1) is through RAM Shared (2) and dsp processor (3) intercommunication; Comprise sensor information module (4), video information module (5) and audio-frequency information module (6); Under ARM microprocessor (1) control, link to each other with dsp processor (3); Comprise that also high-speed transfer interface module (7), serial port module (8), memory (9), power management module (10), GPS module (11), touch screen module (12), host computer (13) and WIFI module (14) link to each other with ARM microprocessor (1); Described sensor information module (4), video information module (5), audio-frequency information module (6), high speed coffret module (7), serial port module (8), memory (9), GPS module (11), touch screen module (12), host computer (13), WIFI module are independently between (14), no any contacting directly.
2. by the described system of claim 1, it is characterized in that
A) described sensor information module (4) comprises continuous sensor information input interface (15), signal measurement amplifier (16), A/D converter (17) successively, and wherein A/D converter (17) links to each other with the dsp processor (3) of OMAP under the ARM of OMAP microprocessor (1) control;
B) described video information module (5) comprises composite video input interface (18), Video Decoder (19), video output interface (20) successively; Under the ARM of OMAP microprocessor (1) control, link to each other with the dsp processor (3) of OMAP;
C) described audio-frequency information module (6) comprises audio input interface (21), power amplifier (22), audio-frequency information output interface (23) successively, and its intermediate power amplifier (22), audio input interface (21) link to each other with the dsp processor (3) of OMAP under the ARM of OMAP microprocessor (1) control;
D) described high speed coffret module (7) comprises RF (radio frequency) module interface (25) of data buffer (24), 80pin (pin) successively, and wherein data buffer (24) links to each other with the ARM microprocessor (1) of OMAP;
E) described serial port module (8) comprises serial converter (26), DB9 (nine kinds of needles) serial ports (27), and wherein serial converter (26) links to each other with the ARM microprocessor (1) of OMAP;
F) described power management module (10) comprises 5V DC power supply (28), level translator (29), power supervisor (30), and wherein power supervisor (30) links to each other with the ARM microprocessor (1) of OMAP;
G) described touch screen module (12) comprises data buffer (31), touch screen controller (32), touch-screen (33), and wherein data buffer (31) links to each other with ARM microprocessor (1);
H) described host computer (13) carries out two-way communication through ethernet controller (34), RJ45 (network) interface (35) with the ARM microprocessor (1) of OMAP, and wherein ethernet controller (35) links to each other with the ARM microprocessor (1) of OMAP;
Internal memory and memory space are provided when i) described memory (9) is used for to system works;
J) described GPS module (11) is used for the location navigation of system;
K) described WIFI module (14) makes system insert public network.
3. by claim 1 or 2 described systems, it is characterized in that:
A) said OMAP is 3530 dual-core architectures, and wherein ARM nuclear is 600MHz Cortex-A8 nuclear, and 430MHz DSP nuclear is TMS320C64x nuclear;
B) in the sensor information module; Before carrying out the A/D conversion; Must amplify signal earlier, signal measurement amplifier (16) adopts the precision instrument amplifier AD8221 of AD company, only needs an external resistance just can realize the gain between 1 to 1000; Be usually used in the high-precision data acquisition system, as the preamplifier of various small-signals.A/D converter (17) adopts the AD7689 of AD company, and AD7689 is the ADC chip of a 16 precision, 8 passages, and dynamic range is up to 93.5dB, and speed is 250K/S.After the A/D conversion, under the control of the ARM of OMAP microprocessor (1), give the dsp processor (3) of OMAP and handle;
C) in the video information module; The Video Decoder (19) that adopts is the TVP5146 of TI company; TVP5146 is a Video Decoder with 4 tunnel 10 A/D conversions of copy protection measuring ability, supports NTSC/SECAM to transmit Video processing colored and storage standards in order; After the TVP5146 decoding, obtain digital video signal; Under the control of the ARM of OMAP microprocessor (1), giving the dsp processor (3) of OMAP handles; The processed video signal is to show through touch-screen or host computer, or through video output interface (20) output;
D) in the audio-frequency information module, the audio frequency input information is directly given dsp processor (3) and is carried out the encoding and decoding processing under the control of the ARM of OMAP microprocessor (1); But sound output is too little, pass through power amplifier (22) amplification and could export afterwards; The power amplifier (22) that adopts is the LM4889 of National Semiconductor, and LM4889 is the power amplifier of a 1W, and the distortion of power output harmonic wave has only 1% when 3.3V; Adopt two LM4889 that the left and right acoustic channels of audio frequency output is carried out power amplification, just pass through audio-frequency information output interface (23) output afterwards;
E) in the high speed coffret module, external radio frequency transmission module transmission rate can reach 4M/S, can satisfy the transmission of high speed sensing net multimedia messages fully; Because ARM microprocessor (1) I/O mouth output voltage has only 1.8V, and the I/O mouth of the RF module that the high speed coffret is connect is to be operated in 3.3V, between the RF module interface (25) of ARM microprocessor (1) and 80pin, has added data buffer (24); Described data buffer (24) is the 74ALVC16245DGG chip of PHILIPS Co., adopts two 74ALVC16245DGG chips that the output signal line of ARM microprocessor (1) is 3.3V from the 1.8V lifting; The logical signal that interface comprised of 80pin is EMIF parallel bus and some GPIO control lines, comprising high speed transport module mains switch, and reset signal, 5V power supply supply lines etc.;
F) in the design of serial port module, ARM microprocessor (1) control serial converter (26) communicates with the external world through DB9 serial port (27), communicates by letter with the PC computer; Employed serial converter (26) is the MAX3218 of U.S. letter company, and DB9 serial port (27) is female mouthful;
G) in the power management module, employing be 5V DC power supply (28), therefore the 3.3V power supply that most of module is used and following needs carry out level conversion through level translator (29); The level translator that is adopted (29) is the TPS54331 of TI company, converts 3.3V into from 5V;
H) in the touch screen module; Touch-screen (33) needs the operating voltage of 3.3V; Therefore between ARM microprocessor (1) and touch-screen (33), used data buffer (30); Make the 1.8V of ARM microprocessor (1) I/O mouth output become 3.3V, described data buffer (31) uses the 74ALVC16245DGG of PHILIPS Co.; Simultaneously, touch-screen also needs a touch screen controller (31); That described touch screen controller (31) adopts is the TSC2046IPW of TI company, and TSC2046IPW is the 4 line touch screen controllers of a low-voltage I/O, and it can be measured temperature, touch pressure on the sheet, can precisely locate touch panel coordinates;
I) in the host computer relevant portion; ARM microprocessor (1) carries out two-way communication through ethernet controller (34), RJ45 interface (35) with host computer successively; Host computer sends fill order through RJ45 interface (35) to ARM microprocessor (1), receives ARM microprocessor (1) simultaneously and passes the information of coming and store; That described ethernet controller (34) uses is the LAN9220 of SMSC company, and LAN9220 is the interconnected small-sized 10/100M ethernet controller of 16 non-external equipments of a support variable voltage I/O and automatic port counter-rotating; Wherein, LAN9220 meets IEEE 802.3 and IEEE 802.3u standard fully;
J) in the design of memory, the extra memory of employing (9) is the MT29C4G48MAZAPAKD-5IT of U.S. magnesium light company.MT29C4G48MAZAPAKD-5IT is the chip of a integrated DDR and NANDFlash; Wherein DDR is 256M; NAND Flash is 512M; Because multimedia messagess such as video, audio frequency and various sensing datas are all passed to the host computer storage at last, so the internal memory of the memory space of 512M and 256M enough satisfies the needs of using far away;
K) in the GPS Module Design, the GPS locator of employing is the GSD4E chip of CSR company, and a chip based on the satellite enhanced system of GSD4E has high sensitivity navigation engine, 48 tracking verification passages.GSD4E is built-in CPU; Need not through primary processor, just can accomplish the location perception, the GPS filter of the external 2.4G of GSD4E carries out filtering; The model of GPS filter is FIL202856561; Be connected at last and receive on the coaxial connector, the external coaxial line of coaxial connector, the model of described coaxial connector is MM8430;
L) in the WIFI Module Design; The WIFI chip that adopts is the WG7310 chip of TI company; Functions such as WLAN, bluetooth, FM that the WG7310 chip is integrated are supported the 2.4G channel, support different frequency ranges according to different application; WIFI adopts agreement IEEE 802.11b, so support frequency range 11Mbps.WG7310 chip to connect coaxial connector MM8430,2.4G Surface Mount antenna successively.
4. by the method for using of claim 1 or 2 described systems, it is characterized in that:
1. power on to system earlier, system carries out initialization;
2. just control whole system operation after through touch-screen:
A) when native system during as the base station in the sensing net; Receive audio/video information and sensor information that child node transmits,, receive the information of needed node through clicking touch-screen; After handling, can see the real time information of seeing that on touch-screen node transmits;
B) when needs are transmitted storage, pass to demonstration and storage on the PC to information through network interface, strengthen user's operability greatly; Simultaneously, can send order to node through touch-screen;
C) when native system during, gather various multimedia messagess, both can accomplish local the processing, also can be transmitted to the base station and handle as child node;
D) when needs GPS locatees, be equally through clicking touch-screen, obtain GPS information, being presented on the touch-screen;
E) insert public network as demand,, call WIFI, system and public network are coupled together through clicking touch-screen.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970190A (en) * | 2012-12-10 | 2013-03-13 | 东南大学 | Network traffic monitoring system |
| CN103023739A (en) * | 2012-11-07 | 2013-04-03 | 国网智能电网研究院 | EtherCAT communication management device for dual-core based power electronic equipment |
| CN104243576A (en) * | 2014-09-11 | 2014-12-24 | 深圳万物新生科技有限公司 | Intelligent home system and user terminal and device terminal binding method of intelligent home system |
| CN104567825A (en) * | 2013-10-14 | 2015-04-29 | 西安山脉科技发展有限公司 | Hydrological telemeter |
| CN104864931A (en) * | 2014-02-25 | 2015-08-26 | 天体电子学先进电子系统公司 | Apparatus And Method To Monitor The Occupied Volume Within A Fixed Or Variable Volume |
| CN105072705A (en) * | 2015-08-03 | 2015-11-18 | 贵州大学 | Farmland cluster tree heterogeneous sensor network dual-band dual-core control device and control method thereof |
| CN105487540A (en) * | 2015-12-22 | 2016-04-13 | 中北大学 | OMAP platform data interface expansion circuit and small vehicle intelligence control system |
| CN109557838A (en) * | 2017-09-27 | 2019-04-02 | 浙江苏泊尔家电制造有限公司 | Household appliance control method and device |
| CN109839916A (en) * | 2018-12-17 | 2019-06-04 | 天津瑞能电气有限公司 | A kind of ICP intelligent controller test software |
| CN115061529A (en) * | 2022-07-08 | 2022-09-16 | 陕西科技大学 | NNBI radio frequency power source output power control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452491A (en) * | 2008-12-30 | 2009-06-10 | 南京农业大学 | Embedded farming and forestry information acquisition and enquiry mobile terminal based on ARM and DSP |
| CN101860908A (en) * | 2010-04-23 | 2010-10-13 | 南京邮电大学 | Seamless and efficient communication mechanism between wireless multimedia sensor network nodes |
| CN202048933U (en) * | 2011-03-25 | 2011-11-23 | 西北农林科技大学 | Greenhouse monitoring system based on wireless sensor network |
-
2011
- 2011-12-02 CN CN2011103975349A patent/CN102378133A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452491A (en) * | 2008-12-30 | 2009-06-10 | 南京农业大学 | Embedded farming and forestry information acquisition and enquiry mobile terminal based on ARM and DSP |
| CN101860908A (en) * | 2010-04-23 | 2010-10-13 | 南京邮电大学 | Seamless and efficient communication mechanism between wireless multimedia sensor network nodes |
| CN202048933U (en) * | 2011-03-25 | 2011-11-23 | 西北农林科技大学 | Greenhouse monitoring system based on wireless sensor network |
Non-Patent Citations (2)
| Title |
|---|
| 陈卓等: "基于OMAP的无线传感网节点处理器的设计与实现", 《电子技术应用》 * |
| 鲁琴等: "基于OMAP的无线多媒体传感网图像节点设计", 《计算机测量与控制》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023739A (en) * | 2012-11-07 | 2013-04-03 | 国网智能电网研究院 | EtherCAT communication management device for dual-core based power electronic equipment |
| CN103023739B (en) * | 2012-11-07 | 2015-05-13 | 国网智能电网研究院 | EtherCAT communication management device for dual-core based power electronic equipment |
| CN102970190A (en) * | 2012-12-10 | 2013-03-13 | 东南大学 | Network traffic monitoring system |
| CN102970190B (en) * | 2012-12-10 | 2015-05-06 | 东南大学 | Network traffic monitoring system |
| CN104567825A (en) * | 2013-10-14 | 2015-04-29 | 西安山脉科技发展有限公司 | Hydrological telemeter |
| CN104864931A (en) * | 2014-02-25 | 2015-08-26 | 天体电子学先进电子系统公司 | Apparatus And Method To Monitor The Occupied Volume Within A Fixed Or Variable Volume |
| CN104864931B (en) * | 2014-02-25 | 2020-01-14 | 天体电子学先进电子系统公司 | Device and method for monitoring occupied volume in fixed or variable volume |
| CN104243576A (en) * | 2014-09-11 | 2014-12-24 | 深圳万物新生科技有限公司 | Intelligent home system and user terminal and device terminal binding method of intelligent home system |
| CN105072705B (en) * | 2015-08-03 | 2019-09-27 | 贵州大学 | Farmland cluster tree-shaped heterogeneous sensor network double frequency dual-core control device and control method |
| CN105072705A (en) * | 2015-08-03 | 2015-11-18 | 贵州大学 | Farmland cluster tree heterogeneous sensor network dual-band dual-core control device and control method thereof |
| CN105487540B (en) * | 2015-12-22 | 2018-07-24 | 中北大学 | A kind of OMAP platform datas Interface Expanding circuit and its trolley intelligence control system |
| CN105487540A (en) * | 2015-12-22 | 2016-04-13 | 中北大学 | OMAP platform data interface expansion circuit and small vehicle intelligence control system |
| CN109557838A (en) * | 2017-09-27 | 2019-04-02 | 浙江苏泊尔家电制造有限公司 | Household appliance control method and device |
| CN109557838B (en) * | 2017-09-27 | 2021-12-07 | 浙江苏泊尔家电制造有限公司 | Household appliance control method and device |
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Application publication date: 20120314 |