CN1402549A - Character superposition display mode for TV tracking real time measuring system - Google Patents
Character superposition display mode for TV tracking real time measuring system Download PDFInfo
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- CN1402549A CN1402549A CN 01138793 CN01138793A CN1402549A CN 1402549 A CN1402549 A CN 1402549A CN 01138793 CN01138793 CN 01138793 CN 01138793 A CN01138793 A CN 01138793A CN 1402549 A CN1402549 A CN 1402549A
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Abstract
The technical issue to be solved by the invention is that based on the information requirement of the special chip utilized for superimposing characters as well as the commands sent by the CPU to tun the edited programs. The technical scheme is as follows. UPD6464 chip is selected as the special chip for superimposing characters. The CPU sends three formats of command including single byte, double bytes and the continuous bytes to control the UPD6464 chip how to send the data to display. The invention consists of the sync separation chip, the clamping chip, the special chip for superimposing characters, the crystal oscillation, CPU and display. The invented circuit is simple. The invention provides multiple modes to display the characters including the background, the multiple colors and the glint mode.
Description
Technical field
The invention belongs to a kind of character superposition display mode for TV tracking real time measuring system in video image processing and the Display Technique field.
Background technology
Monitoring TV, the character stack demonstration of measuring TV, calibration TV, generally be to adopt both at home and abroad by center processing system (CPU), earlier read the information that will superpose by serial ports, the dot array data of reading displayed character from the read-only memory (ROM) that has character again, according to the display position on screen that sets, deliver in the correspondence position of random-access memory (ram) and go, by the numeration circuit video RAM (RAM) is scanned then, the character pattern signal parallel is read, deliver in the chip superposed and superpose, carry out the character stack and show.
The prior art the most approaching with the present invention is that Changchun Inst. of Optics and Fine Mechanics, Chinese Academy of Sciences develops " station index, timing code character generator on the TV tracing display screen " (1991 the 6th phase P68-72 of optical-mechanical) as shown in Figure 1: be made up of character adder 1, random access memory 2, calculator 3, central processing unir 4, read-only memory 5, display 6.
The subject matter that this character generator exists is that circuit complexity, character display style are single, the debugging trouble, in order to overcome above-mentioned shortcoming, a kind of new character superposition display mode of ad hoc meter.
Summary of the invention
The technical problem to be solved in the present invention is: according to the information requirements of the character stack special chip of selecting for use, center processing unit sends information control command, programmed.
The technical scheme of technical solution problem is: select the UPD6464 character overlap chip for use, center processing unit (CPU) send byte, double byte, three kinds of command formats of successive byte various instructions, control the UPD6464 character overlap chip and show.
Detailed content of the present invention is as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: be made up of Sync Separator Chip 7, character overlap chip 8, crystal oscillator 9, center processing unit 10, display 11, clamp chip 12.
The vision signal of external camera is delivered to character overlap chip 8 after clamp chip 12 clamps, as the image information of stack.Simultaneously, the vision signal of external camera is also done separated in synchronization through Sync Separator Chip 7, isolated composite synchronizing signal (CSYN), synchronizing signal as character overlap chip 8, the signal that crystal oscillator 9 sends is as the clock of center processing unit 10 and character overlap chip 8, character overlap chip 8 receives Sync Separator Chip 7 isolated composite synchronizing signals and does the synchronous of demonstration, center processing unit 10 directly reads overall tracking measurement mode and state information by serial ports, afterwards with character overlap chip 8 distinctive data format---byte, double byte, the various instructions of three kinds of command formats of successive byte, send overall various information and give character overlap chip 8, this information send display 11 to show after character overlap chip 8 inside superpose with raw video signal.
The operation principle explanation: center processing unit 10 sends the requirement according to character overlap chip 8, sends various control commands, the demonstration that comes control character chip superposed 8 to send.
Good effect: this character superposition display mode circuit is simple, and multiple display mode can be arranged, and the character of demonstration can be provided with background and multiple color, also can be set to flashing mode, is applicable to TV tracking real time measuring system.
Description of drawings
Fig. 1 is the display mode block diagram of prior art, Fig. 2 is a display mode block diagram of the present invention, Fig. 3 is byte of the present invention, double byte, three kinds of command formats of successive byte, Fig. 4 is the various instructions of byte of the present invention, double byte, three kinds of command formats of successive byte, and Figure of abstract also adopts Fig. 2.
Embodiment
The invention process, adopt display mode block diagram shown in Figure 2 to implement, Sync Separator Chip 7 adopts the LM1881 chip, character overlap chip 8 adopts the UPD6464 chip, center processing unit 10 adopts the 89C51 chip, display 11 adopts the universal display device, and clamp chip 12 adopts the EL4089CN chip, and crystal oscillator 9 adopts 11.0592MHz.
Claims (1)
1, a kind of character superposition display mode for TV tracking real time measuring system, realize by character overlap chip, center processor, display, it is characterized in that the present invention is made up of Sync Separator Chip (7), character overlap chip (8), crystal oscillator (9), center processing unit (10), display (11), clamp chip (12); The vision signal of external camera is after clamp chip (12) clamp, deliver to character overlap chip (8), image information as stack, simultaneously, the vision signal of external camera is also done separated in synchronization through Sync Separator Chip (7), isolated composite synchronizing signal (CSYN), synchronizing signal as character overlap chip (8), the signal that crystal oscillator (9) sends is as the clock of center processing unit (10) and character overlap chip (8), character overlap chip (8) receives the isolated composite synchronizing signal of Sync Separator Chip (7) and does the synchronous of demonstration, center processing unit (10) directly reads overall tracking measurement mode and state information by serial ports, afterwards with the distinctive data format of character overlap chip (8)---byte, double byte, the various instructions of three kinds of command formats of successive byte, send overall various information and give character overlap chip (8), this information send display (11) to show after character overlap chip (8) inside and raw video signal stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138793 CN1402549A (en) | 2001-12-07 | 2001-12-07 | Character superposition display mode for TV tracking real time measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138793 CN1402549A (en) | 2001-12-07 | 2001-12-07 | Character superposition display mode for TV tracking real time measuring system |
Publications (1)
| Publication Number | Publication Date |
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| CN1402549A true CN1402549A (en) | 2003-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01138793 Pending CN1402549A (en) | 2001-12-07 | 2001-12-07 | Character superposition display mode for TV tracking real time measuring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526969C (en) * | 2007-11-12 | 2009-08-12 | 中国科学院长春光学精密机械与物理研究所 | Multifunctional integrated digital picture processing system |
| CN101426127B (en) * | 2007-10-31 | 2010-08-18 | 中国科学院沈阳自动化研究所 | Video target generation apparatus |
| CN1882058B (en) * | 2005-06-17 | 2010-12-15 | 株式会社理光 | Digital image recording device and image recording method |
| CN102209205A (en) * | 2011-06-14 | 2011-10-05 | 中国科学院长春光学精密机械与物理研究所 | Video overlapping display device for television tracker |
| CN107807777A (en) * | 2017-09-28 | 2018-03-16 | 中国科学院长春光学精密机械与物理研究所 | Multinuclear embedded television tracker human-computer interaction device and method |
-
2001
- 2001-12-07 CN CN 01138793 patent/CN1402549A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882058B (en) * | 2005-06-17 | 2010-12-15 | 株式会社理光 | Digital image recording device and image recording method |
| CN101426127B (en) * | 2007-10-31 | 2010-08-18 | 中国科学院沈阳自动化研究所 | Video target generation apparatus |
| CN100526969C (en) * | 2007-11-12 | 2009-08-12 | 中国科学院长春光学精密机械与物理研究所 | Multifunctional integrated digital picture processing system |
| CN102209205A (en) * | 2011-06-14 | 2011-10-05 | 中国科学院长春光学精密机械与物理研究所 | Video overlapping display device for television tracker |
| CN102209205B (en) * | 2011-06-14 | 2012-11-07 | 中国科学院长春光学精密机械与物理研究所 | Video overlapping display device for television tracker |
| CN107807777A (en) * | 2017-09-28 | 2018-03-16 | 中国科学院长春光学精密机械与物理研究所 | Multinuclear embedded television tracker human-computer interaction device and method |
| CN107807777B (en) * | 2017-09-28 | 2021-03-19 | 中国科学院长春光学精密机械与物理研究所 | Multi-core embedded television tracker man-machine interaction device and method |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |