CN105430381A - Video signal generation device and generation method thereof - Google Patents
Video signal generation device and generation method thereof Download PDFInfo
- Publication number
- CN105430381A CN105430381A CN201510853119.8A CN201510853119A CN105430381A CN 105430381 A CN105430381 A CN 105430381A CN 201510853119 A CN201510853119 A CN 201510853119A CN 105430381 A CN105430381 A CN 105430381A
- Authority
- CN
- China
- Prior art keywords
- cache module
- module
- video signal
- data
- vision signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a video signal generation device and a signal generation method. The video signal generation device comprises a coding module and a video signal output interface, and is characterized by also comprising a mobile memorizer interface, a high-speed cache control module, a high-speed cache module and a data cache module electrically connected with the mobile memorizer interface. The high-speed cache control module reads image data of the data cache module and writes the image data into the high-speed cache module. The coding module reads the image data of the high-speed cache module and converts the image data into a video signal. According to the video signal generation system and signal generation method, the design difficult of a printed circuit board (PCB) is lowered, equipment volume is reduced, EMI power consumption can be controlled, and the device can be used alone without connecting with a PC and other signal sources and has distinct advantages of easy implementation, low cost, high practicability and so on.
Description
Technical field
The invention belongs to signal processing technology field, more specifically, relate to a kind of vision signal generating apparatus and generation method.
Background technology
In the vision signal module of prior art detects, often adopt PC to control a LVDS (or other interfaces) signal generation apparatus and do signal source, produce test pattern, re-use checkout equipment and be translated into vision signal output; Or use PC, from Ethernet interface, test pattern and image parameter are sent into detection, then exported by checkout equipment generating video signal, in above test macro and test mode, high to the degree of dependence of PC, PC can not be departed from and use.The whole system weight and volume that above-mentioned module detects is huge, be not easy to carry, be inconvenient to the occasion being applied to some specific demands, such as the demand of maintaining secrecy, do not allow to carry PC in some occasion and enter production line, cause whole system to produce vision signal, module cannot be realized thus in this case and detect.In a word, the function of existing video module detecting system integration of equipments is more, has that volume is large, power consumption is high, design difficulty is large, is difficult to ensure the shortcomings such as EMI.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of vision signal generation system and signal creating method thereof, its object is to provide a kind of and be applicable to the vision signal generation system of all support module points screen process and the method for signal generation, solve thus video module detect in the lengthy and jumbled technical problem of system, and PC can be departed from or other signal source is used alone.
For achieving the above object, according to one aspect of the present invention, provide one, a kind of vision signal generating apparatus, comprise coding module and video signal output interface, it is characterized in that, the data cache module also comprising removable memory interface, cache module, cache module and be electrically connected with described removable memory interface; Described view data is write described cache module by the view data that described cache module reads described data cache module, and the described view data that described coding module reads described cache module converts vision signal to.
Further, described coding module, cache module and described cache module are integrated in a programmable logic device, and described programmable logic device has image data input that is coupled between described data cache module and described cache module and couples and video signal output terminal between described coding module and described video signal output interface.
Further, described coding module, cache module are integrated in a programmable logic device, described programmable logic device has image data input be coupled between described data cache module and described cache module and the video signal output terminal be coupled between described coding module and described video signal output interface, and has the video signal output terminal be coupled between described cache module and described cache chip.
Further, also comprise serial parallel conversion module, described serial parallel conversion module is integrated in described programmable logic device, described serial parallel conversion module couples described video signal output interface by described video signal output terminal, and described serial parallel conversion module converts the serial video signal that described coding module generates to parallel video signal.
Further, described removable memory is SD card or USB flash disk.
Further, described data cache module is nonvolatile memory.
Further, described cache chip is DDR buffer.
The invention also discloses a kind of vision signal generation method, it is characterized in that, the method comprises the steps:
By removable memory interface, view data is write data cache module; Cache module is sense data from described data cache module, and by its write cache module, coding module reads described view data from described cache module, and will to its carry out encoded translated be vision signal export.
The invention also discloses a kind of vision signal generation method, it is characterized in that, the method comprises the steps:
By the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
The described view data read from described data cache module is cached in the cache module be integrated in described programmable processor by the cache module in programmable processor;
Coding module in described programmable processor reads described view data from described cache module, and encodes to it, is exported by video signal output terminal.
The invention also discloses a kind of vision signal generation method, it is characterized in that, the method comprises the steps:
By the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
The described view data read from described data cache module is cached in cache module by data buffer storage terminal by the cache module in programmable processor;
Coding module in described programmable processor reads described view data from described cache module, and encodes to it, is exported by video signal output terminal.
Further, described encoded translated after vision signal also carry out going here and there and transforming output.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
(1) according to the system that the present invention realizes, composition structure is simple, volume weight light, is therefore easy to carry, can be applied to various occasion;
(2) according to the system that the present invention realizes, reduce the difficulty of PCB design, reduce equipment volume, and the control of EMI power consumption can be realized;
(3) according to the system that the present invention realizes, PC can be departed from and be used alone with other signal source.
In a word, the vision signal generation system realized according to the present invention and generation method, have the distinguishing features such as easy realization, cost is low, practicality is high.
Accompanying drawing explanation
Fig. 1 is the portable simple DP module detecting system schematic diagram realized according to the embodiment of the present invention one;
Fig. 2 is the portable simple DP module detecting system schematic diagram realized according to the embodiment of the present invention two;
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each execution mode of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Embodiment one
As shown in Figure 1, the vision signal generating apparatus realized according to the present invention and the embodiment one of generation method, the data cache module that this device mainly comprises removable memory interface, cache module, cache chip and is electrically connected with removable memory interface, coding module and cache module are integrated in a programmable logic device, programmable logic device have couple data cache module image data input, couple the data buffer storage terminal of cache chip and couple the video signal output terminal of video signal output interface; Cache module reads the view data of described data cache module by image data input and by data buffer storage terminal by view data write cache chip, coding module converts view data to vision signal.Wherein, removable memory interface is used for being connected with external removable memory, under the state without networking, by removable memory, view data is wherein cached in data cache module.According to the vision signal generating apparatus that the present embodiment realizes, also by PC, view data is write data cache module, convenient when receiving test signal, coding module is reads image data from cache chip.
This device also comprises serial parallel conversion module, serial parallel conversion module is integrated in programmable logic device, serial parallel conversion module couples video signal output interface by video signal output terminal, and serial parallel conversion module converts the serial video signal that coding module generates to parallel video signal.
Wherein, the vision signal generation method realized according to the present embodiment one, the method comprises the steps:
STEP1: under online mode, view data is write data cache module by Ethernet by PC; Under the pattern of off line, by the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
STEP2: the data of staying alone from data cache module are cached in cache chip by data buffer storage terminal by the cache module in programmable processor;
STEP3: coding module is reads image data from cache chip, and it is encoded, exported by video signal output terminal, before starting test, reading image data can be gone, without occupied bandwidth by coding module;
STEP4: the signal that video signal output terminal exports by string also conversion module the vision signal of serial be converted into parallel vision signal exported by video signal output interface.
Embodiment two
As shown in Figure 1, the vision signal generating apparatus realized according to the present invention and the embodiment two of generation method, the data cache module that this device mainly comprises removable memory interface, cache module, cache chip and is electrically connected with removable memory interface, coding module and cache module and cache module are integrated in a programmable logic device, and programmable logic device has image data input coupling data cache module and the video signal output terminal coupling video signal output interface; Cache module reads the view data of described data cache module by image data input and by view data write cache module, coding module converts view data to vision signal.Wherein, removable memory interface is used for being connected with external removable memory, under the state without networking, by removable memory, view data is wherein cached in data cache module.According to the vision signal generating apparatus that the present embodiment realizes, also by PC, view data is write data cache module, convenient when receiving test signal, coding module is reads image data from cache chip.
This device also comprises serial parallel conversion module, serial parallel conversion module is integrated in programmable logic device, serial parallel conversion module couples video signal output interface by video signal output terminal, and serial parallel conversion module converts the serial video signal that coding module generates to parallel video signal.
Wherein, the vision signal generation method realized according to the present embodiment two, the method comprises the steps:
STEP1: under online mode, view data is write data cache module by Ethernet by PC; Under the pattern of off line, by the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
STEP2: the cache module in programmable processor by the data buffer storage that reads from data cache module in cache chip;
STEP3: coding module is reads image data from cache chip, and it is encoded, exported by video signal output terminal, before starting test, reading image data can be gone, without occupied bandwidth by coding module;
STEP4: the signal that video signal output terminal exports by string also conversion module the vision signal of serial be converted into parallel vision signal exported by video signal output interface.
According to the portable simple DP module detecting system that above-described embodiment realizes, cache chip or cache module are specially high speed DDR; Data cache module is nonvolatile memory, such as EMMC, Flash etc., and detection data wherein mainly comprise image and image parameter, and wherein image parameter includes but not limited to that pixel bit is dark, pixel format (YUV/RGB) etc.; Wherein serial parallel conversion module is specially Serdes.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a vision signal generating apparatus, comprise coding module and video signal output interface, it is characterized in that, the data cache module also comprising removable memory interface, cache module, cache module and be electrically connected with described removable memory interface; Described view data is write described cache module by the view data that described cache module reads described data cache module, and the described view data that described coding module reads described cache module converts vision signal to.
2. vision signal generating apparatus as claimed in claim 1, it is characterized in that, described coding module, cache module and described cache module are integrated in a programmable logic device, and described programmable logic device has image data input that is coupled between described data cache module and described cache module and couples and video signal output terminal between described coding module and described video signal output interface.
3. vision signal generating apparatus as claimed in claim 1, it is characterized in that, described coding module, cache module are integrated in a programmable logic device, described programmable logic device has image data input be coupled between described data cache module and described cache module and the video signal output terminal be coupled between described coding module and described video signal output interface, and has the video signal output terminal be coupled between described cache module and described cache chip.
4. as the vision signal generating apparatus in claim 1-3 as described in any one, it is characterized in that, also comprise serial parallel conversion module, described serial parallel conversion module is integrated in described programmable logic device, described serial parallel conversion module couples described video signal output interface by described video signal output terminal, and described serial parallel conversion module converts the serial video signal that described coding module generates to parallel video signal.
5. vision signal generating apparatus as claimed in claim 4, it is characterized in that, described removable memory is SD card or USB flash disk.
6. vision signal generating apparatus as claimed in claim 5, it is characterized in that, described data cache module is nonvolatile memory.
7. vision signal generating apparatus as claimed in claim 6, it is characterized in that, described cache chip is DDR buffer.
8. a vision signal generation method, it is characterized in that, the method comprises the steps:
By removable memory interface, view data is write data cache module; Cache module is sense data from described data cache module, and by its write cache module, coding module reads described view data from described cache module, and will to its carry out encoded translated be vision signal export.
9. a vision signal generation method, it is characterized in that, the method comprises the steps:
By the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
The described view data read from described data cache module is cached in the cache module be integrated in described programmable processor by the cache module in programmable processor;
Coding module in described programmable processor reads described view data from described cache module, and encodes to it, is exported by video signal output terminal.
10. a vision signal generation method, it is characterized in that, the method comprises the steps:
By the removable memory accessed in removable memory interface, view data to be detected is write data cache module;
The described view data read from described data cache module is cached in cache module by data buffer storage terminal by the cache module in programmable processor;
Coding module in described programmable processor reads described view data from described cache module, and encodes to it, is exported by video signal output terminal.
11., as the vision signal generation method in claim 8-10 as described in any one, is characterized in that, described encoded translated after vision signal also carry out going here and there and transforming output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853119.8A CN105430381A (en) | 2015-11-27 | 2015-11-27 | Video signal generation device and generation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853119.8A CN105430381A (en) | 2015-11-27 | 2015-11-27 | Video signal generation device and generation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105430381A true CN105430381A (en) | 2016-03-23 |
Family
ID=55508278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510853119.8A Pending CN105430381A (en) | 2015-11-27 | 2015-11-27 | Video signal generation device and generation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105430381A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072371A (en) * | 2006-05-11 | 2007-11-14 | 创视科技股份有限公司 | Video signal generating device |
| CN201238363Y (en) * | 2008-06-23 | 2009-05-13 | 北京牡丹视源电子有限责任公司 | Display image movement response test equipment |
| CN102123293A (en) * | 2010-01-11 | 2011-07-13 | 深圳市奇脉电子技术有限公司 | Portable video signal generator |
| CN104932124A (en) * | 2015-06-12 | 2015-09-23 | 武汉精测电子技术股份有限公司 | FPGA-based figure signal producing device and method |
-
2015
- 2015-11-27 CN CN201510853119.8A patent/CN105430381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072371A (en) * | 2006-05-11 | 2007-11-14 | 创视科技股份有限公司 | Video signal generating device |
| CN201238363Y (en) * | 2008-06-23 | 2009-05-13 | 北京牡丹视源电子有限责任公司 | Display image movement response test equipment |
| CN102123293A (en) * | 2010-01-11 | 2011-07-13 | 深圳市奇脉电子技术有限公司 | Portable video signal generator |
| CN104932124A (en) * | 2015-06-12 | 2015-09-23 | 武汉精测电子技术股份有限公司 | FPGA-based figure signal producing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11093391B2 (en) | Representing a cache line bit pattern via meta signaling | |
| CN104021107A (en) | Design method for system supporting non-volatile memory express peripheral component interface express solid state disc (NVMe PCIE SSD) | |
| CN105744202B9 (en) | V-BY-ONE signal processing method and device | |
| CN102075758B (en) | Motion joint photographic experts group (MJPEG) video coding and decoding system based on system on chip (SOC) and method thereof | |
| US8897030B2 (en) | Expansion apparatus with serial advanced technology attachment dual in-line memory module device | |
| US8886859B2 (en) | USB storage device | |
| JP2014534509A (en) | System, IO connector assembly and storage medium for connection | |
| CN105279123A (en) | Serial port conversion structure and method of dual-redundancy 1553B bus | |
| CN105430381A (en) | Video signal generation device and generation method thereof | |
| CN203673398U (en) | Industrial control main board with various extended functions and system of industrial control main board | |
| CN109240957A (en) | M.2 hard-disk interface turns usb circuit and conversion method to one kind | |
| CN102576301B (en) | Interfacing circuit comprising a FIFO storage | |
| CN106791550A (en) | The apparatus and method that a kind of low frame rate LVDS turns frame frequency DVI videos high | |
| US20140229641A1 (en) | Method and apparatus for latency reduction | |
| CN103165158A (en) | Electronic hard disk | |
| CN103744807A (en) | Memory card access control system based on programmable logic device | |
| CN221101383U (en) | Camellink signal simulator with USB interface | |
| CN103500564A (en) | Image display control unit, image display control method and image display system | |
| CN209728735U (en) | A kind of pcie_x8 interface extended equipment | |
| CN204302863U (en) | Mainboard | |
| TWM463385U (en) | Detachable type expansion interface device | |
| CN203433827U (en) | Double-storage and double-interface USB (Universal Serial Bus) flash disk | |
| CN203217926U (en) | Data transmission device of LED synchronous display control system | |
| CN203102871U (en) | Power supply transmission circuit for storage card | |
| CN207396796U (en) | A kind of fiber adapter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the four floor, No. Applicant after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the four floor, No. Applicant before: Wuhan Jingce Electronic Technology Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |