CN103634565A - OMAP-based ultraviolet and visible light dual-channel image acquisition, processing and display system - Google Patents
OMAP-based ultraviolet and visible light dual-channel image acquisition, processing and display system Download PDFInfo
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- CN103634565A CN103634565A CN201310449364.3A CN201310449364A CN103634565A CN 103634565 A CN103634565 A CN 103634565A CN 201310449364 A CN201310449364 A CN 201310449364A CN 103634565 A CN103634565 A CN 103634565A
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Abstract
The invention belongs to the technical field of applications of photoelectric products and particularly relates to an OMAP-based ultraviolet and visible light dual-channel image acquisition, processing and display system. According to the system of the invention, a dual-channel image acquisition module acquires ultraviolet light and background visible light separated by an ultraviolet leakage imager, carries out analog-to-digital conversion on the ultraviolet light and the background visible light and transmits digital images to an OMAP main control module and a JPEG2000 encoding module; the OMAP main control module enhances the ultraviolet light digital image, fuses the visible light digital image and the enhanced ultraviolet light digital image and displays the fused images on a liquid crystal display module; and the JPEG2000 encoding module encodes and compresses the ultraviolet light digital image and the visible light digital image, and data obtained through encoding and compression is transmitted to an SD card storage module for storage through the OMAP main control module. The OMAP-based ultraviolet and visible light dual-channel image acquisition, processing and display system is low in power consumption and has complete function modules, a general operating system and a graphical interface can be run, and functions such as data storage and playback, GPS positioning, and operation interface display through liquid crystal display screen touching can be achieved.
Description
Technical field
The invention belongs to photovoltaic applied technical field, be specifically related to a kind of collection of ultraviolet-visible Channel Image, processing and display system based on OMAP.
Background technology
Day blind (240～280nm) ultraviolet signal that ultraviolet electric leakage imager produces while discharging by receiving equipment, overlapping with visible image after treatment, be presented on the screen of instrument, reach and determine the position of corona and the object of intensity.It is mainly used in the detection of power station, transformer station, power transmission and transformation system, power transmission and transformation line corona discharge.
Investigation finds, current ultraviolet electric leakage imager is mainly to isolate ultraviolet and bias light merges two-way image by dsp processor with spectroscope.DSP can be real-time the meet required figure image intensifying of ultraviolet electric leakage imager, fusion etc. process operation, therefore but its system power dissipation is higher, functional module is complete not, can not move the general-purpose operating system and graphical interfaces, needs a kind of device badly and make ultraviolet electric leakage imager can realize image storage, GPS location, the abundant man-machine function such as control flexibly.
Summary of the invention
The technical issues that need to address of the present invention are: prior art adopts DSP to carry out IMAQ, process and show in ultraviolet electric leakage imager, and system power dissipation is higher, functional module is complete not, can not move the general-purpose operating system and graphical interfaces.
Technical scheme of the present invention is as described below:
A kind of collection of ultraviolet-visible Channel Image, processing and display system based on OMAP, comprise two-way video acquisition module, OMAP main control module, liquid crystal display screen display module, JPEG2000 coding module and SD card memory module: two-way video acquisition module gathers the ultraviolet electric leakage isolated ultraviolet light of imager spectroscope and background visible ray, after its analog to digital conversion, by Digital Image Transmission to OMAP main control module and JPEG2000 coding module; OMAP main control module strengthens ultraviolet light digital picture, and the ultraviolet light digital picture after visible ray digital picture and enhancing is merged, and according to control command, at liquid crystal display screen display module, the image after merging is carried out to the demonstration of single channel or two-way; JPEG2000 coding module carries out compression coding to ultraviolet light digital picture and visible ray digital picture, and the data after compression coding transfer to SD card memory module through OMAP main control module and store.
As preferred version,
Described two-way video acquisition module, comprise a TVP5158 Video Decoder and two SAA7113 Video Decoders: described TVP5158 Video Decoder gathers ultraviolet light and background visible ray simultaneously, it is carried out to analog to digital conversion and merging, by the Digital Image Transmission after merging to OMAP main control module; Described two SAA7113 Video Decoders gather respectively ultraviolet light and background visible ray, respectively the signal collecting are carried out, after analog to digital conversion, digital picture being transferred to respectively to JPEG2000 coding module.
As preferred version,
Digital picture after described TVP5158 Video Decoder merges is the BT.656 form of 54MHz pixel clock.
As preferred version,
Described OMAP main control module, adopts dual processor nuclear structure: comprise the arm processor of a Cortex-A8 kernel and the dsp processor of a TMS320C64x+;
The management that arm processor carries out OMAP main control module Peripheral Interface by operation flush type LINUX is controlled; Required figure image intensifying, the mixing operation of dsp processor real time execution ultraviolet electric leakage imager;
Arm processor is controlled video input interface and is received the digital picture from two-way video acquisition module, and DID is transferred to dsp processor; Dsp processor strengthens ultraviolet light digital picture, and the ultraviolet light digital picture by visible ray digital picture and after strengthening is merged; Dsp processor is back to arm processor by the view data after merging, and arm processor is controlled LCD Interface and on liquid crystal display screen display module, shown output.
As preferred version,
Described liquid crystal display screen display module adopts TFT liquid crystal display screen.
As preferred version,
Described JPEG2000 coding module, comprise two ADV202 coding chips, the two receives respectively from the ultraviolet light digital picture of two-way video acquisition module and background visible ray digital picture, and the digital picture receiving is carried out to compression coding, the data after compression coding transfer to SD card memory module through OMAP main control module.
As preferred version,
Described SD card memory module is for storing ultraviolet, the visible images after JPEG2000 coding module compression coding, and startup guides operating system in the debug phase.
As preferred version,
The collection of ultraviolet-visible Channel Image, processing and display system based on OMAP also comprise GPS module, and it is connected with OMAP main control module by RS232 serial ports, for recording the positional information of the ultraviolet electric leakage imager that adopts the present embodiment system.
Beneficial effect of the present invention is:
The collection of ultraviolet-visible Channel Image, processing and display system based on OMAP of the present invention, system power dissipation is low, functional module is complete, can move the general-purpose operating system and graphical interfaces, can realize data storages playback, GPS location, touch LCD screen display and show operation and control interface, the abundant man-machine function such as control flexibly, the ultraviolet electric leakage imager that system of the present invention has been installed has in real time good ultraviolet and detects effect.
Accompanying drawing explanation
Fig. 1 is that the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP of the present invention forms schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP of the present invention is elaborated.
Embodiment 1
The collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP of the present embodiment, comprise two-way video acquisition module, OMAP main control module, liquid crystal display screen display module, JPEG2000 coding module and SD card memory module: two-way video acquisition module gathers the ultraviolet electric leakage isolated ultraviolet light of imager spectroscope and background visible ray, after its analog to digital conversion, by Digital Image Transmission to OMAP main control module and JPEG2000 coding module; OMAP main control module strengthens ultraviolet light digital picture, and the ultraviolet light digital picture after visible ray digital picture and enhancing is merged, and according to control command, at liquid crystal display screen display module, the image after merging is carried out to the demonstration of single channel or two-way; JPEG2000 coding module carries out compression coding to ultraviolet light digital picture and visible ray digital picture, and the data after compression coding transfer to SD card memory module through OMAP main control module and store.
Described two-way video acquisition module, comprise a TVP5158 Video Decoder and two SAA7113 Video Decoders: described TVP5158 Video Decoder gathers ultraviolet light and background visible ray simultaneously, it is carried out to analog to digital conversion and merging, by the Digital Image Transmission after merging to OMAP main control module; Described two SAA7113 Video Decoders gather respectively ultraviolet light and background visible ray, respectively the signal collecting are carried out, after analog to digital conversion, digital picture being transferred to respectively to JPEG2000 coding module.In the present embodiment, the digital picture after TVP5158 Video Decoder merges is the BT.656 form of 54MHz pixel clock, to meet the maximum 75MHz supporting of OMAP main control module video input interface.
Described OMAP main control module, adopts dual processor nuclear structure: comprise the arm processor of a Cortex-A8 kernel and the dsp processor of a TMS320C64x+.Arm processor is undertaken controlling as the management of the OMAP main control module Peripheral Interfaces such as video input interface, LCD Interface, SD card interface by operation flush type LINUX; Operation is processed in the required figure image intensifying of dsp processor real time execution ultraviolet electric leakage imager, fusion etc.Arm processor is controlled video input interface and is received the digital picture from two-way video acquisition module, and DID is transferred to dsp processor; Dsp processor strengthens ultraviolet light digital picture, and the ultraviolet light digital picture after visible ray digital picture and enhancing is merged, and described figure image intensifying and image co-registration are known to the skilled person general knowledge; Dsp processor is back to arm processor by the view data after merging, and arm processor is controlled LCD Interface and on liquid crystal display screen display module, shown output.
Described liquid crystal display screen display module adopts TFT liquid crystal display screen, to meet the parallel remote frame buffering drive pattern of the R:G:B=8:8:8 video signal format of described LCD Interface support.
Described JPEG2000 coding module, comprise two ADV202 coding chips, the two receives respectively from the ultraviolet light digital picture of two-way video acquisition module and background visible ray digital picture, and the digital picture receiving is carried out to compression coding, the data after compression coding transfer to SD card memory module through OMAP main control module.
Described SD card memory module is for storing ultraviolet, the visible images after JPEG2000 coding module compression coding, and startup guides operating system in the debug phase.
Embodiment 2
The difference of the present embodiment and embodiment 1 is:
The collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP of the present embodiment, also comprise GPS module.
Described GPS module is connected with OMAP main control module by two-way RS232 serial ports, for recording the positional information of the ultraviolet electric leakage imager that adopts the present embodiment system.
Claims (8)
1. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP, comprise two-way video acquisition module, OMAP main control module, liquid crystal display screen display module, JPEG2000 coding module and SD card memory module, it is characterized in that: two-way video acquisition module gathers the ultraviolet electric leakage isolated ultraviolet light of imager spectroscope and background visible ray, after its analog to digital conversion, by Digital Image Transmission to OMAP main control module and JPEG2000 coding module; OMAP main control module strengthens ultraviolet light digital picture, and the ultraviolet light digital picture after visible ray digital picture and enhancing is merged, and according to control command, at liquid crystal display screen display module, the image after merging is carried out to the demonstration of single channel or two-way; JPEG2000 coding module carries out compression coding to ultraviolet light digital picture and visible ray digital picture, and the data after compression coding transfer to SD card memory module through OMAP main control module and store.
2. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 1, it is characterized in that: described two-way video acquisition module, comprise a TVP5158 Video Decoder and two SAA7113 Video Decoders: described TVP5158 Video Decoder gathers ultraviolet light and background visible ray simultaneously, it is carried out to analog to digital conversion and merging, by the Digital Image Transmission after merging to OMAP main control module; Described two SAA7113 Video Decoders gather respectively ultraviolet light and background visible ray, respectively the signal collecting are carried out, after analog to digital conversion, digital picture being transferred to respectively to JPEG2000 coding module.
3. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 2, is characterized in that: the digital picture after described TVP5158 Video Decoder merges is the BT.656 form of 54MHz pixel clock.
4. according to the collection of ultraviolet-visible Channel Image, processing and display system based on OMAP described in right 1 or 2, it is characterized in that:
Described OMAP main control module, adopts dual processor nuclear structure: comprise the arm processor of a Cortex-A8 kernel and the dsp processor of a TMS320C64x+;
The management that arm processor carries out OMAP main control module Peripheral Interface by operation flush type LINUX is controlled; Required figure image intensifying, the mixing operation of dsp processor real time execution ultraviolet electric leakage imager;
Arm processor is controlled video input interface and is received the digital picture from two-way video acquisition module, and DID is transferred to dsp processor; Dsp processor strengthens ultraviolet light digital picture, and the ultraviolet light digital picture by visible ray digital picture and after strengthening is merged; Dsp processor is back to arm processor by the view data after merging, and arm processor is controlled LCD Interface and on liquid crystal display screen display module, shown output.
5. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 1 and 2, is characterized in that: described liquid crystal display screen display module adopts TFT liquid crystal display screen.
6. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 1 and 2, it is characterized in that: described JPEG2000 coding module, comprise two ADV202 coding chips, the two receives respectively from the ultraviolet light digital picture of two-way video acquisition module and background visible ray digital picture, and the digital picture receiving is carried out to compression coding, the data after compression coding transfer to SD card memory module through OMAP main control module.
7. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 1 and 2, it is characterized in that: described SD card memory module is for storing ultraviolet, the visible images after JPEG2000 coding module compression coding, and startup guides operating system in the debug phase.
8. the collection of ultraviolet-visible Channel Image, processing and the display system based on OMAP according to claim 1 and 2, it is characterized in that: the collection of ultraviolet-visible Channel Image, processing and display system based on OMAP also comprise GPS module, it is connected with OMAP main control module by RS232 serial ports, for recording the positional information of the ultraviolet electric leakage imager that adopts the present embodiment system.
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| CN113112440A (en) * | 2021-04-23 | 2021-07-13 | 华北电力大学 | Ultraviolet and visible light image fusion system and method based on FPGA |
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Application publication date: 20140312 |