CN202889506U

CN202889506U - Digital image recorder

Info

Publication number: CN202889506U
Application number: CN 201220481863
Authority: CN
Inventors: 肖佑平; 王春江; 张帆; 刘洋
Original assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Current assignee: Cama Luoyang Measurement and Control Equipments Co Ltd
Priority date: 2012-09-20
Filing date: 2012-09-20
Publication date: 2013-04-17
Anticipated expiration: 2022-09-20

Abstract

The utility model relates to a digital image recorder comprising a field programmable gate array FPGA, a digital signal processor DSP, a video signal decoder, a data compression chip, a data decompression chip, and a data storage module, which are all communicated with the field programmable gate array FPGA. The digital image recorder provided in the utility model adopts the FPGA and DSP architecture, and can be used to acquire and process the video signals timely, and to guarantee the continuity of the video signal acquisition, in addition, the video data compression and decompression can be fast, accurate, and efficient, and the uninterrupted play of the video can be realized.

Description

A kind of digital image recorder

Technical field

The utility model belongs to the photoelectric imaging technology field, relates to a kind of digital image recorder.

Background technology

Digital image recorder is the high-tech product of collection computer and digital image processing techniques, is widely used in the fields such as security protection, monitoring, intelligent management.The function of digital image recorder be will simulation audio-video signal change the digital signal such as MPEG into and be stored in (such as hard disk) on the storage medium, and provide as recording, manage the function such as broadcast.Existing digital image recorder is multiplex in safety-security area, mostly be PCI analog video acquisition interface, function is comparatively single, to installing and using environment certain requirement is arranged also, it is abominable to satisfy some environments for use, the requirement in the field that the portable multi-function Interface integration is had relatively high expectations (such as maritime patrol law enforcement, military tactics investigation etc.).

The utility model content

The purpose of this utility model provides a kind of digital image recorder, to realize round the clock observation at portable product equipment, photologging and target be the integrated design of location in real time, and functional interface is abundant, integrated level is high, can be applicable to generally reach the portable instructions for use under the particular surroundings.

For achieving the above object, digital image recorder of the present utility model comprises on-site programmable gate array FPGA and the digital signal processor DSP that is connected with its communication, video signal decoder, data compression chip, data decompression shrinking chip and data memory module.

Further, described on-site programmable gate array FPGA comprises that the I/O interface module is used for the Communication Control of control panel.

Further, described on-site programmable gate array FPGA comprises the RS422 interface module.

Further, described RS422 interface module is two, and one of them connects the UART chip by the MAX490 chip, and another one is used for Long-distance Control by optics control drive circuit.

Further, described on-site programmable gate array FPGA comprises the USB interface module.

Further, described on-site programmable gate array FPGA comprises the LCD driver module, is used for connecting LCD display.

Further, described on-site programmable gate array FPGA comprises the OLED driver module, is used for connecting the OLED display screen by the OLED control circuit.

Further, described on-site programmable gate array FPGA also communication be connected with the MAX232 chip.

Digital image recorder of the present utility model adopts the FPGA+DSP framework, can Real-time Collection, process vision signal, guarantee the continuity of video signal collective, video data compression, decompression fast, accurately, efficient, realize playing without interrupting of video, and can easily information data be carried out download process by the USB2.0 interface.Recorder has disposed infrared and two kinds of transducer control interfaces of visible light simultaneously, and can pass through RS232 interface connecting electronic compass, laser ranging, GPS, gather simultaneously the measurement data of each transducer, and above-mentioned data are carried out Data Fusion, the accurate geographic position information of real-time export target, and information is added in the video image, has realized the target real-time navigation capability.By the instruction of I/O interface reception from control panel, and with instruction parsing execution; Realize respectively Long-distance Control to transducer by the RS422 interface; By blue tooth interface, can carry out information interaction with general intelligence equipment (such as mobile phone), realize wireless device controls; Loaded large capacity solid-state electronic hard disk by the ata bus interface, had low-power consumption, low temperature resistant, the advantage such as the anti-vibrating and impact ability is strong is adapted at using in the adverse circumstances.

Description of drawings

Fig. 1 is the interface relationship figure of the utility model embodiment;

Fig. 2 is the system block diagram of the utility model embodiment;

Fig. 3 is the video compression Stored Procedure figure of the utility model embodiment;

Fig. 4 is the video compression flow for displaying figure of the utility model embodiment.

Embodiment

Such as Fig. 1, shown in 2, digital image recorder comprises power distribution module WDM30-2812SP, on-site programmable gate array FPGA, the power distribution module provides power supply by linking to each other to come for digital image recorder with 12VDC, FPGA selects the EP3SE50F780I4 model, is connected with digital signal processor DSP (TMS320C6414), video signal decoder ADV7189, data compression chip ADV202encode, data decompression shrinking chip ADV202decode and data memory module with this FPGA communication.Employing is carried out the flow chart of video compression storage, decompress(ion) demonstration respectively shown in Fig. 3,4 with upper module.

On-site programmable gate array FPGA also comprises the I/O interface module, and this module is used for the Communication Control of control panel; Comprise two RS422 interface modules, one of them connects the UART chip by the MAX490 chip, can be connected with the bluetooth equipment communication, by bluetooth equipment digital image recorder is carried out Long-distance Control, another one RS422 interface module is used for the Long-distance Control focusing lens by optics control drive circuit; The USB interface module can realize linking to each other with host computer and carry out remote data transmission; The LCD driver module can be used for connecting LCD display; The OLED driver module can connect the OLED display screen by the OLED control circuit; On-site programmable gate array FPGA also communication is connected with the MAX232 chip, this digital image recorder can communication be connected with GPS with electronic compass, laser ranging respectively, their measurement data of Real-time Collection is carried out data fusion, accurate geographic position information with real-time export target, and in the video image that this geographical location information can be added to, make the image information of demonstration more abundant, practical.

Claims

1. a digital image recorder is characterized in that, comprises on-site programmable gate array FPGA and the digital signal processor DSP that is connected with its communication, video signal decoder, data compression chip, data decompression shrinking chip and data memory module.

2. digital image recorder according to claim 1 is characterized in that: described on-site programmable gate array FPGA comprises that the I/O interface module is used for the Communication Control of control panel.

3. digital image recorder according to claim 1 is characterized in that, described on-site programmable gate array FPGA comprises the RS422 interface module.

4. digital image recorder according to claim 3 is characterized in that, described RS422 interface module is two, and one of them connects the UART chip by the MAX490 chip, and another one is used for Long-distance Control by optics control drive circuit.

5. digital image recorder according to claim 1, it is characterized in that: described on-site programmable gate array FPGA comprises the USB interface module.

6. digital image recorder according to claim 1, it is characterized in that: described on-site programmable gate array FPGA comprises the LCD driver module, is used for connecting LCD display.

7. digital image recorder according to claim 1, it is characterized in that: described on-site programmable gate array FPGA comprises the OLED driver module, is used for connecting the OLED display screen by the OLED control circuit.

8. each described digital image recorder according to claim 1-7 is characterized in that: described on-site programmable gate array FPGA also communication is connected with the MAX232 chip.