CN201967064U - PAL-mode video signals generator - Google Patents
PAL-mode video signals generator Download PDFInfo
- Publication number
- CN201967064U CN201967064U CN2011200929946U CN201120092994U CN201967064U CN 201967064 U CN201967064 U CN 201967064U CN 2011200929946 U CN2011200929946 U CN 2011200929946U CN 201120092994 U CN201120092994 U CN 201120092994U CN 201967064 U CN201967064 U CN 201967064U
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- pxi
- integrated circuit
- circuit board
- computer
- signal generator
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Abstract
The utility model discloses a PAL-mode video signal generator comprising a PXI card, a PXI machine body and a computer; the PXI card is fixedly mounted in the PXI machine body, and the computer is connected with the PXI machine body through an Ethernet and an Express Card slot. The video signal generator has the advantages that the generator can start up to run without pre-heating and has high precision with 100 million sampling points per second and the precision of each sampling point can reach 16bit; and the DC error range under 1VP-P state can reach +/- 2.5mv, while the AC error reaches +/- 2mv. The generator with the mini-type machine body and the portable computer has favorable portability and brief interface, and is easy to operate.
Description
Technical field
The utility model relates to a kind of signal generator, particularly relates to a kind of pal video signal generator of test communications based on the PXI technology platform, belongs to the signal generator technical field.
Background technology
Regularly the every index of video channel being detected in all multisystems has significance, for example safety-protection system, vehicle-mounted surveillance, television relay system etc.Flying-spot video generator is the key components of video channel detection system.Whether stablizing of detection line signal source, direct relation the accuracy of testing result.
At present, what use in the prior art is to be the flying-spot video generator of core devices with the analog integrated circuit mostly, and there is poor stability in this flying-spot video generator, and noise is big, needs defectives such as pre-thermal instrument before using.Substitute the inexorable trend that conventional analog circuits is the signal generator development with high-speed digital integrated circuit.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of pal video signal generator of test communications based on the PXI technology platform is provided.
The technical scheme that the utility model adopted is: a kind of PAL flying-spot video generator comprises PXI integrated circuit board, PXI cabinet and computer; Described PXI integrated circuit board is fixedly mounted in the PXI cabinet, and described computer is connected with the PXI cabinet by Ethernet or Express Card slot.
The output of described PXI integrated circuit board is a Sub-miniature B, and described Sub-miniature B exports signal to application system by coaxial cable.
The model of described PXI integrated circuit board is PXI-5421.
The beneficial effects of the utility model are: need not preheating, start i.e. operation; The accuracy height, 100,000,000 sampled points of per second, each sampled point precision can reach 16bit, and the dc error scope can reach ± 2.5mv under the 1Vp-p state, and the 1Vp-p state exchanges error down and only is ± 2mv; Adopt small-sized cabinet and portable computer, have good portability; The interface is brief, easy operating.
Description of drawings
Fig. 1 is the composition schematic diagram of the utility model pal video signal generator.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the composition schematic diagram of the utility model pal video signal generator; As shown in Figure 1, the utility model pal video signal generator comprises PXI integrated circuit board, PXI cabinet and computer; The PXI integrated circuit board is fixedly mounted in the PXI cabinet, and computer is connected with the PXI cabinet by Ethernet or Express Card slot.Formally next generation PC card called after Express Card, PCMCIA has developed Express Card standard and has promoted the I/O card of plug and play Intel, and carries out the upgrade job of PCMCIA card on the IDF Fall2003 that the U.S. holds.This standard is that the member company by many PCMCIA together develops, comprising the leader of technology, the manufacturer of system development merchant and card.ExpressCard can provide add-in memories, wired and radio communication, multimedia and safety protection function.ExpressCard is not bootable equipment.For example, you can add ExpressCard so that your computer can carry out wireless wide area network (WWAN) connection.Express Card not only volume is tiny, and transmission speed is faster, is suitable for moving or the desktop plateform system, and supports USB 2.0 and PCI Express.The jig of this a new generation has two kinds of specifications, but all less than present CARDBUS calliper lattice, wherein Zui Xiao card is the ExpressCard/34 standard, and it only has half of present PC card, and this size is more suitable for the access in mobile device, such as PDA etc.The output of PXI integrated circuit board is a Sub-miniature B, and Sub-miniature B exports signal to application system by coaxial cable.The model of PXI integrated circuit board is PXI-5421.The PXI cabinet is an America NI company product.Utilize the Matlab/Simulink software programming to generate the file of pal television vision signal, precision can reach 8 position effective digitals.Utilize LabVIEW to write the VI(virtual instrument) file, write the VI(virtual instrument) effect of file is to make computer to communicate by letter with the PXI-5421 integrated circuit board, pal television signal file and configuration parameter (amplitude, sample rate etc.) are transferred in the PXI-5421 integrated circuit board.Thereby, control the PXI-5421 integrated circuit board by the executable program that is stored in the computer, make its instruction produce needed pal video signal according to executable program.During the operation of the utility model pal video signal generator, the pal video signal file that stores in the computer is imported in the internal memory of PXI integrated circuit board by software.The PXI integrated circuit board is according to signal file and relevant configured parameter, carries out signal by the accurate numerical value of sampled point and produces.
PXI-5421 is the arbitrary signal generator of a 100 MS/s, and this compact list groove 3U PXI integrated circuit board has 16 resolution.This integrated circuit board combines high-resolution and high internal memory, is suitable for generating long, accurate, acyclic waveform.PXI-5421 is suitable for extensive use fields such as automobile, communication, scientific research, military affairs/space flight and consumption electronic product.PXI-5421 uses the PXI platform based on pci bus, thereby when downloading waveform, its speed is 280 times of GPIB generator.Isochronous memory core (SMC) by this integrated circuit board and RTSI bus can be created and have exciting/responding system of digitizer and high speed digital I/O, or by a plurality of AWG (Arbitrary Waveform Generator) synchronously, the multichannel generation system of a phase coherence of generation.
The utility model need not preheating, and start i.e. operation; The accuracy height, 100,000,000 sampled points of per second, each sampled point precision can reach 16bit, and the dc error scope can reach ± 2.5mv under the 1Vp-p state, and the 1Vp-p state exchanges error down and only is ± 2mv; Powerful expanded function requires to write signal file according to difference and can generate various vision signals; Adopt small-sized cabinet and portable computer, have good portability; The interface is brief, easy operating.
It is worthy of note; protection range of the present utility model is not limited to above-mentioned instantiation mode; according to basic fundamental design of the present utility model; also available essentially identical structure can realize the purpose that this is novel; as long as those of ordinary skills need not through creative work; the execution mode that can associate all belongs to protection range of the present utility model.
Claims (3)
1. a pal video signal generator is characterized in that, comprises PXI integrated circuit board, PXI cabinet and computer; Described PXI integrated circuit board is fixedly mounted in the PXI cabinet, and described computer is connected with the PXI cabinet by Ethernet or Express Card slot.
2. pal video signal generator according to claim 1 is characterized in that, the output of described PXI integrated circuit board is a Sub-miniature B, and described Sub-miniature B exports signal to application system by coaxial cable.
3. pal video signal generator according to claim 1 is characterized in that, the model of described PXI integrated circuit board is PXI-5421.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200929946U CN201967064U (en) | 2011-04-01 | 2011-04-01 | PAL-mode video signals generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200929946U CN201967064U (en) | 2011-04-01 | 2011-04-01 | PAL-mode video signals generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201967064U true CN201967064U (en) | 2011-09-07 |
Family
ID=44529616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200929946U Expired - Lifetime CN201967064U (en) | 2011-04-01 | 2011-04-01 | PAL-mode video signals generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201967064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546663A (en) * | 2013-07-03 | 2014-01-29 | 杨玉峰 | Video signal integrated generator with WIFI function |
-
2011
- 2011-04-01 CN CN2011200929946U patent/CN201967064U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546663A (en) * | 2013-07-03 | 2014-01-29 | 杨玉峰 | Video signal integrated generator with WIFI function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN JINNENG YIANTAI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TIANJIN EMPIRETEST CORPORATION |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300384 Huayuan Industrial Zone Tianjin City Road No. 10 Patentee after: Tianjin Jinneng Yiantai Technology Co., Ltd. Address before: 300384 in Tianjin Binhai Huayuan Science Park Haitai development six 6 Haitai green industry base 3 door 301 seat M8 Patentee before: Tianjin Empiretest Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |