CN104660917A - Information distribution terminal display system - Google Patents
Information distribution terminal display system Download PDFInfo
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- CN104660917A CN104660917A CN201310573731.0A CN201310573731A CN104660917A CN 104660917 A CN104660917 A CN 104660917A CN 201310573731 A CN201310573731 A CN 201310573731A CN 104660917 A CN104660917 A CN 104660917A
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- module
- character
- synchronizing signal
- display system
- terminal display
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Abstract
The invention belongs to the technical field of display systems and particularly relates to an information distribution terminal display system. The information distribution terminal display system provided by the invention has the advantages of high reliability and convenience for use. The information distribution terminal display system comprises a synchronizing signal separation module, a character superimposition module, a character library module, a control module, a communication module and a display module. The information distribution terminal display system is characterized in that the character superimposition module is respectively connected to the synchronizing signal separation module, the character library module, the control module, the communication module and the display module, and picture elements of characters are superimposed to the corresponding positions on a CRT (Cathode Ray Tube) by the character superimposition module; the synchronizing signal separation module comprises a horizontal synchronizing signal used for determining the beginning of a row and a field synchronizing signal used for determining the beginning of a field.
Description
Technical field
the invention belongs to display systems technology field, particularly relate to a kind of information release terminal display system.
Background technology
in recent years, along with the lifting of living standards of the people, the intelligence degree of community is more and more higher.But the estate management mode of most of community also rests on the level of billboard, efficiency is low inconvenient again.The information release system for residential quarter of networking can change the life style of this backwardness.In the residential quarters of some top grades, employ the display terminal of liquid crystal display screen as Information issued, cost is high, is not suitable for being generalized in the middle of the common vast people.
Summary of the invention
the present invention is exactly for the problems referred to above, provides the information release terminal display system that a kind of reliability is high, easy to use.
to achieve these goals, the present invention adopts following technical scheme, the present invention includes synchronizing signal separation module, character adding module, character base module, control module, communication module, display module, its structural feature character adding module is connected with synchronizing signal separation module, character base module, control module, communication module, display module respectively, the relevant position that the pixel of character is added on CRT by character adding module; Synchronizing signal separation module comprises line synchronizing signal and field sync signal, and the beginning of line synchronizing signal determination a line, field synchronization determines the beginning of.
as a kind of preferred version, character adding module of the present invention adopts MTV018 and uPD6453 chip.
as another kind of preferred version, character base module of the present invention adopts MB90092 chip.
beneficial effect of the present invention.
the present invention is information terminal display with the CRT of former intercom system, and adopt MB90092 as Video Character Superpose chip, not high to the hardware requirement of system, network layout is simple, have cost low, speed is fast, and reliability is high, easy to use, be easy to the advantages such as management, have a good application prospect.
Accompanying drawing explanation
in order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
fig. 1 is schematic block circuit diagram of the present invention.
Embodiment
as shown in the figure, the present invention includes synchronizing signal separation module, character adding module, character base module, control module, communication module, display module, its structural feature character adding module is connected with synchronizing signal separation module, character base module, control module, communication module, display module respectively, the relevant position that the pixel of character is added on CRT by character adding module; Synchronizing signal separation module comprises line synchronizing signal and field sync signal, and the beginning of line synchronizing signal determination a line, field synchronization determines the beginning of.
as a kind of preferred version, character adding module of the present invention adopts MTV018 and uPD6453 chip.
as another kind of preferred version, character base module of the present invention adopts MB90092 chip.
mB90092 provides two kinds of methods superposed, and is called main screen superposition and secondary screen superposition.Both can independently or overlapping appearance on a monitor.Wherein during main screen display, each character can be set, and when secondary screen display is shown, data a line a line can be arranged, and also can arrange by whole screen.Because the display of main screen overlaying character is relatively freer, so native system adopts the mode of main screen superposition.The Charactes Display dot matrix supported under this mode is 24x32, and the capacity of display is 12 row, often row 24 characters or Chinese character, and each character can be different color.The control mode of font size has standard (24x32 dot matrix), double wide, double height, the double height of double wide x, 4 times of wide x4 doubly high.The control of display position can arrange the original position of horizontal direction and vertical direction, can set line-spacing simultaneously.The internal video signal generator of MB90092 supports NTSC standard or PAL standard, can select line by line or interlace mode, and the various ways such as Y/C, composite video, R, G, B can be provided to export.MB90092 inside can produce synchronizing signal voluntarily, without the need to additional vision signal and synchronizing signal, directly can export overlaying character signal to monitor, show the text of different background color, different Chinese character color on a monitor.MB90092 controls in SPI mode, so it only has 3 order wires (CS, SCLK, SIN) to communicate with control module.
each instruction of MB90092 is made up of two bytes.First 5 of first character joint is command code, and all the other positions and second byte are data.First send out the first byte when sending, then send out the second byte, the first byte can be latched in the inside of MB90092, after transmission first byte, can send multiple second byte continuously.MB90092 has 15 instructions, and wherein 13 have concrete function, remains two reservations, can realize arranging the various registers of MB90092 inside by these instructions.Under MB90092 is generally operational in the pattern of main screen, the order relevant with main screen pattern has ten, and function is as follows: COM1: determine the display position of character on screen.COM1 and COM2: determine the address of character in character library and characters' property.COM3: by the whole main screen of certain Character Filling from the position of specifying, this order is usually used in cls.
cOM4: determine the method for synchronization, scan mode, NTSC or PAL standard, colored or monochromatic and whether overlaying character.
cOM5: line-spacing sets.COM6: determine that the size of word and that a few row can be used for showing character.COM7: vertical direction start position setting.COM8: horizontal direction start position setting.COM9: character or graphics mode setting.COM10: whether main screen background color character color and character glimmer.
above content is the further description done the present invention in conjunction with concrete preferred implementation; can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the protection range that claims that the present invention submits to are determined.
Claims (3)
1. an information release terminal display system, comprise synchronizing signal separation module, character adding module, character base module, control module, communication module, display module, it is characterized in that character adding module is connected with synchronizing signal separation module, character base module, control module, communication module, display module respectively, the relevant position that the pixel of character is added on CRT by character adding module; Synchronizing signal separation module comprises line synchronizing signal and field sync signal, and the beginning of line synchronizing signal determination a line, field synchronization determines the beginning of.
2. a kind of information release terminal display system according to claim 1, is characterized in that described character adding module adopts MTV018 and uPD6453 chip.
3. a kind of information release terminal display system according to claim 1, is characterized in that described character base module adopts MB90092 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573731.0A CN104660917A (en) | 2013-11-18 | 2013-11-18 | Information distribution terminal display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573731.0A CN104660917A (en) | 2013-11-18 | 2013-11-18 | Information distribution terminal display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104660917A true CN104660917A (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310573731.0A Pending CN104660917A (en) | 2013-11-18 | 2013-11-18 | Information distribution terminal display system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104660917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422769A (en) * | 2020-11-22 | 2021-02-26 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display for realizing synchronous recording control of characters and videos |
-
2013
- 2013-11-18 CN CN201310573731.0A patent/CN104660917A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422769A (en) * | 2020-11-22 | 2021-02-26 | 中国航空工业集团公司洛阳电光设备研究所 | Head-up display for realizing synchronous recording control of characters and videos |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |