CN105025235B - A kind of visible character overlapping method of strong light based on laser night-vision device - Google Patents
A kind of visible character overlapping method of strong light based on laser night-vision device Download PDFInfo
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- CN105025235B CN105025235B CN201510432988.3A CN201510432988A CN105025235B CN 105025235 B CN105025235 B CN 105025235B CN 201510432988 A CN201510432988 A CN 201510432988A CN 105025235 B CN105025235 B CN 105025235B
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Abstract
Strong light visible character overlapping method of the invention based on laser night-vision device, the laser night-vision device includes main control unit and the laser illuminator, video camera and the head that are connected respectively with main control unit, also include the character adding module being connected through SPI drive circuits with main control unit, character adding module and video camera are connected through main control unit with outside display terminal；The character adding module includes character overlap chip and is connected to the word-base chip of character overlap chip, and the strong visible character overlapping method of light comprises the following steps：a）New character library is drawn, makes character library band flash；b）Initialization；c）Character adding；d）Character address and display mode are set；e）Show character.The inventive method causes laser night-vision device to remain to be clearly seen that the character of outside display terminal laminated thereto under strong light direct beam, ensure that the normal operating of equipment.
Description
Technical field
The present invention relates to a kind of visible character overlapping method of strong light based on laser night-vision device, belong to safety monitoring technology
Field.
Background technology
The product that laser night-vision device is IMAQ and laser illumination system integrates.Image capturing system is most common to be exactly
Integrated camera or gunlock commanding lens, it both can realize that continuous vari-focus adjusts the angle of visual field in certain scope.Swash
Lighting system is to realize night in the case of underlit, supplements light source with laser, gathers image capturing system
To clearly picture.
It is to show laser night-vision device relevant information to laser night-vision device overlaying character, calls, function is set.Normal
In the case of illumination, the character of superposition can clearly indicate, but strong light direct beam can cause character to show blur, influence just
Often operation.The use environment of laser night-vision device is changeable, both can be indoor or outdoor.Meet apparent sun, car light,
When indoor lamp, torch lamp light source, the character of Chu's laser night-vision device superposition can not seen.
The content of the invention
The present invention is in order to overcome the shortcomings of above technology, there is provided a kind of visible character of strong light based on laser night-vision device
Stacking method, remain to be clearly seen that the character of outside display terminal laminated thereto under strong light direct beam, ensure that equipment just
Often operation.
Technical scheme is used by the present invention overcomes its technical problem：
A kind of visible character overlapping method of strong light based on laser night-vision device, the laser night-vision device include main control unit
And laser illuminator, video camera and the head being connected respectively with main control unit, in addition to through SPI drive circuits and master control list
The character adding module that member is connected, character adding module and video camera are connected through main control unit with outside display terminal；Institute
Stating character adding module includes character overlap chip and is connected to the word-base chip of character overlap chip, and the strong visible character of light is folded
Adding method comprises the following steps：
a）New character library is drawn, makes character library band flash；
b）Initialization：
1. initializing SPI drive circuits, the communication of main control unit and character overlap chip is configured；
2. the character adding function of enabled character overlap chip；
3. initialize character overlap chip and word-base chip；
c）Character adding：
Character overlap chip uses main screen stacked system；
d）Character address and display mode are set：
Data are sent to character overlap chip by SPI drive circuits character address and display mode are set；
e）Show character.
Preferably, step a）In, the character library is binary BIN character libraries of Freehandhand-drawing.
Preferably, step d）In, the character Display mode selects white and black displays, and opens halftoning.
Preferably, the character overlap chip is MB90092, word-base chip SST29F040B.
The beneficial effects of the invention are as follows：
The character overlapping method of the present invention causes laser night-vision device to remain to be clearly seen that outside display under strong light direct beam
The character of terminal superposition, ensure that the normal operating of equipment, is adapted to changeable environment, both can be indoor, also may be used
With outdoor, go back in the case of either meeting apparent sun, car light, indoor lamp and torch lamp light source etc..
Brief description of the drawings
Fig. 1 is the structure principle chart of laser night-vision device of the present invention.
Fig. 2 is the character overlapping method flow chart of the present invention.
Fig. 3 is the contrast schematic diagram before and after treatment of the present invention.
In figure, 1, main control unit, 2, laser illuminator, 3, video camera, 4, head, 5, character adding module, 6, SPI drivings
Circuit, 51, character overlap chip, 52, word-base chip.
Embodiment
The present invention is better understood from for the ease of those skilled in the art, the present invention is done with specific embodiment below in conjunction with the accompanying drawings
It is further described, following is only exemplary not limit protection scope of the present invention.
As shown in figure 1, the visible character overlapping method of strong light based on laser night-vision device, the laser night-vision device includes master
Control unit 1 and laser illuminator 2, video camera 3 and the head 4 being connected respectively with main control unit, head are internally provided with biography
Motivation structure, horizontal, elevating movement can be carried out, laser illuminator 2 and the synchronous axial system of video camera 3 can be made to realize synchronous zoom, swashed
Light night vision device also includes the character adding module 5 that is connected through SPI drive circuits 6 with main control unit, character adding module 5 with take the photograph
Camera 3 is connected through main control unit with outside display terminal, and character adding module 5 can believe the relevant characters such as character, figure
Breath is added on video in a transparent manner, and is output to by main control unit 1 on outside display terminal；The character adding mould
Block 5 includes character overlap chip 51 and is connected to the word-base chip 52 of character overlap chip, and character overlap chip 51 is selected
MB90092, word-base chip 52 select SST29F040B.As shown in Fig. 2 the visible character overlapping method of strong light includes following step
Suddenly：
a）New character library is drawn, makes character library band flash, the character library is binary BIN character libraries of Freehandhand-drawing.Due in thing
The discontinuity of gray scale is presented in body edge, so having done flash processing to each word to deepen contrast, makes the character of superposition
What is highlighted is more obvious, is allowed to produce the circular effect of black surround, allows character to seem to become apparent from, as shown in figure 3, before processing and
Contrast schematic diagram after processing.
b）Initialization：
1. SPI drive circuits are initialized, the communication of configuration main control unit and character overlap chip MB90092, the character
The communication of chip superposed MB90092 and main control unit is SPI communication；
2. enabled character overlap chip MB90092 character adding function, i.e. reset chip-select pin；
3. initialize character overlap chip MB90092 and word-base chip SST29F040B.
c）Character adding：
Character overlap chip MB90092 provides the mode of " main screen " and " pair screen " two kinds of screen superpositions, and the present invention uses
Main screen stacked system, by 12 rows, often 24 characters of row form the main screen, can set each character data and backstyle；
d）Character address and display mode are set：
Data are sent to character overlap chip by SPI drive circuits character address and display mode are set；In the present invention
Character Display mode selects white and black displays, and opens halftoning, increases the contrast of display.
e）Show character.
Above only describes the general principle and preferred embodiment of the present invention, those skilled in the art can be according to foregoing description
Many changes may be made and improves, and these changes and improvements should belong to protection scope of the present invention.
Claims (4)
1. a kind of visible character overlapping method of strong light based on laser night-vision device, the laser night-vision device include main control unit with
And laser illuminator, video camera and the head being connected respectively with main control unit, in addition to through SPI drive circuits and main control unit
The character adding module being connected, character adding module and video camera are connected through main control unit with outside display terminal；It is described
Character adding module includes character overlap chip and is connected to the word-base chip of character overlap chip；Characterized in that, Qiang Guangke
The character overlapping method seen comprises the following steps：
a）New character library is drawn, makes each word band flash in character library；
b）Initialization：
1. initializing SPI drive circuits, the communication of main control unit and character overlap chip is configured；
2. the character adding function of enabled character overlap chip；
3. initialize character overlap chip and word-base chip；
c）Character adding：
Character overlap chip uses main screen stacked system：
The character overlap chip is MB90092, and character overlap chip MB90092 provides " main screen " and " pair screen " two kinds of screens
The mode of superposition, by 12 rows, often 24 characters of row form the main screen；
d）Character address and display mode are set：
Data are sent to character overlap chip by SPI drive circuits character address and display mode are set；
e）Show character.
2. character overlapping method according to claim 1, it is characterised in that step a）In, the character library is the two of Freehandhand-drawing
The BIN character libraries of system.
3. character overlapping method according to claim 1, it is characterised in that step d）In, the character Display mode choosing
With white and black displays, and open halftoning.
4. character overlapping method according to claim 1, it is characterised in that the word-base chip is SST29F040B.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432988.3A CN105025235B (en) | 2015-07-22 | 2015-07-22 | A kind of visible character overlapping method of strong light based on laser night-vision device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432988.3A CN105025235B (en) | 2015-07-22 | 2015-07-22 | A kind of visible character overlapping method of strong light based on laser night-vision device |
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| Publication Number | Publication Date |
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| CN105025235A CN105025235A (en) | 2015-11-04 |
| CN105025235B true CN105025235B (en) | 2018-01-30 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600082A (en) * | 2009-07-03 | 2009-12-09 | 中兴通讯股份有限公司 | High definition shows the method and the device of captions in the TV conference system |
| CN203193796U (en) * | 2013-04-27 | 2013-09-11 | 山东神戎电子股份有限公司 | High-definition digital laser night-vision device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020180752A1 (en) * | 2001-04-02 | 2002-12-05 | Pelco | Device and method for displaying variable brightness characters |
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- 2015-07-22 CN CN201510432988.3A patent/CN105025235B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600082A (en) * | 2009-07-03 | 2009-12-09 | 中兴通讯股份有限公司 | High definition shows the method and the device of captions in the TV conference system |
| CN203193796U (en) * | 2013-04-27 | 2013-09-11 | 山东神戎电子股份有限公司 | High-definition digital laser night-vision device |
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| CN105025235A (en) | 2015-11-04 |
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