CN206650773U

CN206650773U - Video image transmission system based on zigbee and FPGA

Info

Publication number: CN206650773U
Application number: CN201720186500.8U
Authority: CN
Inventors: 崔洁
Original assignee: Jiangsu Institute of Architectural Technology
Current assignee: Jiangsu Institute of Architectural Technology; Jiangsu Jianzhu Institute
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2017-11-17
Anticipated expiration: 2027-02-28

Abstract

Utility model discloses the video image transmission system based on Zigbee and FPGA, including video image acquisition module, AD conversion module, Zigbee module, Zigbee base stations, FPGA module, monitoring module, D/A conversion module, SDRAM module, USB interface module, host computer.The beneficial effects of the utility model are：By video image acquisition module collection site image information, realized and be wirelessly transferred by Zigbee module, stored using SDRAM module and data transfer, by the use of USB interface module as FPGA peripheral hardware, finally realize the transmission of video image.Its is simple in construction, easy to operate, has very strong practicality.

Description

Video image transmission system based on Zigbee and FPGA

Technical field

Transmission of video images field is the utility model is related to, more particularly to a kind of video figure based on Zigbee and FPGA Image transmission system.

Background technology

With the continuous development of microelectric technique, video-frequency data transmission system obtains in fields such as network, communication, smart homes To being widely applied, its speed and processing accuracy to transmission of video images requires also more and more higher.For long-distance transmissions Video image using cable or optical fiber, it is necessary to be transmitted, and with the increase of transmission range, cost is consequently increased, for The failure that circuit occurs, it is also difficult to search.

Utility model content

In order to solve the above problems, the utility model provides a kind of transmission of video images system based on Zigbee and FPGA System.

The utility model in order to solve its technical problem used by technical scheme be：Video based on Zigbee and FPGA Image delivering system, including video image acquisition module, AD conversion module, Zigbee module, Zigbee base stations, FPGA module, Monitoring module, D/A conversion module, SDRAM module, USB interface module, host computer, described video image acquisition module turn with AD Mold changing block be connected realizes one-way communication, AD conversion module is connected with Zigbee module realizes one-way communication, Zigbee module and Zigbee realizes base station wireless data transmission, and Zigbee base stations are connected with FPGA module realizes one-way communication, FPGA module and prison Control module, which is connected, realizes two-way communication, and FPGA module is connected with USB interface module realizes one-way communication, FPGA module and SDRAM Module, which is connected, realizes two-way communication, and USB interface module is connected with host computer realizes one-way communication.

The FPGA module includes fpga chip, configuration circuit, crystal oscillating circuit, reset circuit, FIFO buffers, instruction Lamp, keyboard, power supply.

Described image acquisition module is MT9M114 chips, and CMOS digital image sensor MT9M114 adopts as image information Collect equipment, the 10 bit digital pixel datas that imaging sensor will collect.The image capture module is without external power source, by too Positive energy charge and discharge device can work.

The Zigbee module uses CC2420 chips, and the chip meets IEEE802.15.4 standards, using unipole antenna As reception antenna.

The AD conversion module is ADC0832 chips, the 10 bit digital pixel datas that can collect imaging sensor Be converted to the data signal of 30 and FPGA is sent to by Zigbee base stations.

The D/A conversion module is DAC0832 chips, the FPGA data signals of 30 transmitted can be converted into 10 Digital pixel data, host computer is reached by USB interface module.

The FPGA module is EP2C5T144C8N chips.

Compared with conventional video image transmitting：

(1) the utility model is based on ZigBee technology, and relative to traditional wire transmission, ZigBee technology, which can be reduced, is The equipment amount of system, make system rest flexible, it is easy to remove.

(2) the utility model is based on fpga chip, and relative to traditional dsp chip, FPGA has higher clock frequency, The speed of service is fast, low in energy consumption, forms the advantages that flexible, and the data that can be responsible for collecting system carry out high speed processing.

(3) its is simple in construction for the utility model, easy to operate, has very strong practicality.

Brief description of the drawings

Fig. 1 is structural framing figure of the present utility model.

Fig. 2 is the utility model FPGA module structural framing figure.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Remove, complete description, it is clear that described example is only the utility model part of the embodiment, rather than whole realities Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made The every other embodiment obtained, belongs to scope of protection of the utility model.

As shown in figure 1, the video image transmission system based on Zigbee and FPGA, including：

Video image acquisition module, AD conversion module, Zigbee module, Zigbee base stations, FPGA module, monitoring module, D/A conversion module, SDRAM module, USB interface module, host computer, described video image acquisition module and AD conversion module phase Company realizes one-way communication, and AD conversion module is connected with Zigbee module realizes one-way communication, Zigbee module and Zigbee base stations Wireless data transmission is realized, Zigbee base stations are connected with FPGA module realizes one-way communication, and FPGA module is connected with monitoring module Two-way communication is realized, FPGA module is connected with USB interface module realizes one-way communication, and FPGA module is connected real with SDRAM module Existing two-way communication, USB interface module is connected with host computer realizes one-way communication.

Wherein, image capture module is MT9M114 chips, and CMOS digital image sensor MT9M114 is as image information Collecting device, the 10 bit digital pixel datas that imaging sensor will collect.The image capture module passes through without external power source Solar charging/discharging device can work.

Wherein, AD conversion module is ADC0832 chips, the 10 bit digital pixel datas that can collect imaging sensor Be converted to the data signal of 30 and FPGA is sent to by Zigbee base stations.

Wherein, Zigbee module uses CC2420 chips, and the chip meets IEEE802.15.4 standards, using unipole antenna As reception antenna, 30 position digital signals that Zigbee base stations are sent are received, and 30 position digital signals are sent to FPGA Module.

Wherein, D/A conversion module is DAC0832 chips, the FPGA data signals of 30 transmitted can be converted into 10 Digital pixel data, host computer is reached by USB interface module.

As shown in Figure 2：FPGA module include fpga chip, configuration circuit, crystal oscillating circuit, reset circuit, FIFO buffers, Indicator lamp, keyboard, power supply.

Wherein, FPGA module is EP2C5T144C8N chips.FPGA reads Zigbee bases by the A D interface module of inside Stand 30 position digital signals received, then data are pre-processed, FPGA module is by the data message temporary cache of pretreatment In SDRAM module, using 2 SDRAM modules, alternation is so just just served to the information of pretreatment in reading and writing state Certain caching effect.

In summary, the video image transmission system based on Zigbee and FPGA, relative to traditional dsp chip, FPGA With higher clock frequency, the speed of service is fast, low in energy consumption, forms the advantages that flexible, can be responsible for the data collected to system Carry out high speed processing.Its is simple in construction for the utility model, easy to operate, has very strong practicality.

Claims

1. based on Zigbee and FPGA video image transmission system, including video image acquisition module, AD conversion module, It is Zigbee module, Zigbee base stations, FPGA module, monitoring module, D/A conversion module, SDRAM module, USB interface module, upper Machine, described video image acquisition module is connected with AD conversion module realizes one-way communication, AD conversion module and Zigbee module It is connected and realizes one-way communication, Zigbee module realizes wireless data transmission, Zigbee base stations and FPGA module with Zigbee base stations It is connected and realizes one-way communication, FPGA module is connected with monitoring module realizes two-way communication, and FPGA module is connected with USB interface module One-way communication is realized, FPGA module is connected with SDRAM module realizes two-way communication, and USB interface module is connected realization with host computer One-way communication；The FPGA module includes fpga chip, configuration circuit, crystal oscillating circuit, reset circuit, FIFO buffers, instruction Lamp, keyboard, power supply.

2. the video image transmission system according to claim 1 based on Zigbee and FPGA, it is characterised in that：The figure Picture acquisition module is MT9M114 chips, and CMOS digital image sensor MT9M114 passes as image information collecting equipment, image The 10 bit digital pixel datas that sensor will collect, the image capture module are filled without external power source by solar charging/discharging Putting to work.

3. the video image transmission system according to claim 1 based on Zigbee and FPGA, it is characterised in that：It is described Zigbee module uses CC2420 chips, and the chip meets IEEE802.15.4 standards, using unipole antenna as reception antenna.

4. the video image transmission system according to claim 1 based on Zigbee and FPGA, it is characterised in that：The AD Modular converter is ADC0832 chips, and the 10 bit digital pixel datas that can collect imaging sensor are converted to the number of 30 Word signal sends FPGA to by Zigbee base stations.

5. the video image transmission system according to claim 1 based on Zigbee and FPGA, it is characterised in that：The DA Modular converter is DAC0832 chips, and the FPGA data signals of 30 transmitted can be converted to the digital pixel data of 10, Host computer is reached by USB interface module.

6. the video image transmission system according to claim 1 based on Zigbee and FPGA, it is characterised in that：It is described FPGA module is EP2C5T144C8N chips.