CN202650006U - Bitmap font online updating system - Google Patents
Bitmap font online updating system Download PDFInfo
- Publication number
- CN202650006U CN202650006U CN 201220162219 CN201220162219U CN202650006U CN 202650006 U CN202650006 U CN 202650006U CN 201220162219 CN201220162219 CN 201220162219 CN 201220162219 U CN201220162219 U CN 201220162219U CN 202650006 U CN202650006 U CN 202650006U
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- CN
- China
- Prior art keywords
- dot matrix
- chip
- word library
- font
- display device
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- Expired - Lifetime
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Abstract
The utility model provides a bitmap font online updating system which comprises an upper machine module, a CAN bus and a bitmap display device, wherein the upper machine module comprises an upper machine and a USB-CAN converter, the upper machine is used for transmitting a font film to the CAN bus through the USB-CAN converter, the bitmap display device comprises a singlechip and a bitmap font chip, the singlechip is used for receiving the font file from the CAN bus, and the received font file is stored in the bitmap font chip. According to the bitmap font online updating system provided by the utility model, the font film is transmitted to the CAN bus through the USB-CAN converter by an upper machine, the singlechip in the bitmap display device is used for receiving the font file from the CAN bus, the received font file is stored in the bitmap font chip, thus the bitmap font chip is updated or manufactured conveniently and rapidly.
Description
Technical field
The utility model belongs to the demonstration field, relates in particular to a kind of dot matrix word library online updating system.
Background technology
Along with LED(Light Emitting Diode, light emitting diode) display device applications is increasingly extensive, the in recent years application on electronic bus guideboard and billboard is particularly extensive especially, the changeability of its displaying contents is trend electrified, intelligent development, in the past stiff electronic bus guideboard and billboard have been substituted, people's favor extremely.Along with increasing of user, demand also is tending towards diversification.But, for the LED display device that is mainly consisted of by single-chip microcomputer, ISN storage chip, dot matrix word library chip and LED display parts, because described dot matrix word library chip is the fixedly word-base chip that circulates on the market, thus the font that shows also be fix and be difficult to change.
In the prior art, for such dot matrix word library chip, just be difficult to after making revise, use the specific purpose tool programming afterwards if will revise often to need to disassemble, also just be equivalent to again make, and then reinstall use.Therefore, the fixedly word-base chip of circulation is difficult to satisfy its actual requirement for different user on the market, is not that unnecessary font is arranged is exactly that font is not comprehensive, poor selectivity, and price is also relatively more expensive simultaneously.
Inventor of the present utility model finds, although some producers are arranged by self-control dot matrix word library chip, solve the problem that display font is fixed and is difficult to change, but but be difficult to satisfy the demand that in the future changes, because out dot matrix word library chip of self-control might not be very perfect, may constantly make amendment and perfect in the later stage.Equally, the dot matrix word library in the described dot matrix word library chip can not arbitrarily upgrade, and font also can't change easily, can not grow with each passing hour, and belongs to equally fixedly word-base chip.
Summary of the invention
The purpose of this utility model provides a kind of dot matrix word library online updating system, can realize by the online updating dot matrix word library change of font, has abandoned when upgrading dot matrix word library in the prior art dismounting and installment work loaded down with trivial details on hardware configuration.
The purpose of this utility model is achieved through the following technical solutions:
A kind of dot matrix word library online updating system comprises upper computer module, CAN bus and dot matrix display device, wherein:
Described upper computer module comprises host computer and USB-CAN converter, and described host computer is transferred to font file on the CAN bus through the USB-CAN converter;
Described dot matrix display device comprises single-chip microcomputer and dot matrix word library chip, and described single-chip microcomputer receives font file from the CAN bus, and the font file that receives is deposited in the dot matrix word library chip.
Further, the font file that described host computer sends is divided into some sub-font files, and correspondence is provided with several piece storage spaces in the described dot matrix word library chip.
Further, described several piece storage spaces carry out position arrangement by the relevance of sub-font file.
Further, described dot matrix display device is the LED display device.
Further, described dot matrix display device also comprises be used to the ISN storage chip of storing concrete displaying contents and is used for the dot matrix display screen that word content shows.
Further, described dot matrix word library chip is the FLASH chip.
The dot matrix word library online updating system that the utility model provides is transferred to font file on the CAN bus through the USB-CAN converter by host computer; Single-chip microcomputer in the described dot matrix display device receives font file from the CAN bus, and the font file that receives is deposited in the dot matrix word library chip, finishes renewal or the making of corresponding dot matrix word-base chip, and is convenient and swift.
Description of drawings
Fig. 1 is the dot matrix word library online updating system architecture schematic diagram that the utility model embodiment provides.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please refer to shown in Figure 1ly, a kind of dot matrix word library online updating system comprises upper computer module 1, CAN bus 2 and dot matrix display device 3, wherein:
Described upper computer module 1 comprises host computer 11 and USB-CAN converter 12, and described host computer 11 is transferred to font file on the CAN bus 2 through USB-CAN converter 12;
Described dot matrix display device 3 comprises single-chip microcomputer 31 and dot matrix word library chip 32, and described single-chip microcomputer 31 receives font file from CAN bus 2, and the font file that receives is deposited in the dot matrix word library chip 32.
The dot matrix word library online updating system that the utility model provides, by host computer font file is transferred on the CAN bus through the USB-CAN converter, described USB-CAN converter 12 with host computer 11 be connected CAN bus 2 and connect so that host computer 11 and dot matrix display device 3 become a node on the CAN bus 2 equally; Wherein, described CAN bus 2 can be a network with a plurality of nodes, also can be a CAN bus that simply connects upper computer module 1 and dot matrix display device 3.By the upper computer software on the host computer 11, be connected with single-chip microcomputer 31 in the dot matrix display device 3 through CAN bus 2 networks, carry out data transmission according to specified protocol, and by single-chip microcomputer 31 data are write in the dot matrix word library chip 32, just can upgrade or make corresponding dot matrix word library chip, convenient and swift.By upgrading dot matrix word library, just can be the dot array data programming of different fonts in dot matrix word library chip 32, in order to replace original dot array data or font file (font file is comprised of numerous dot array datas), when dot matrix display device 3 display text content, just can show the font after corresponding word content upgrades.
As concrete embodiment, the font file that described host computer sends is divided into some sub-font files, specifically can cut apart according to actual needs; Accordingly, in described dot matrix word library chip, also be provided with several piece storage spaces, be used for storing sub-font file, be i.e. the corresponding piece storage space of sub-font file.Like this, can be more convenient for piece storage space in 31 pairs of dot matrix word library chips 32 of single-chip microcomputer carries out programming and processes, and when follow-up renewal font file, also do not need whole dot matrix word library chip is upgraded, and the data that only need to upgrade in the physical block storage space get final product, and improve the dirigibility of operation.
As better embodiment, described several piece storage spaces carry out position arrangement by the relevance of sub-font file.Particularly, the storage space after the piecemeal can be carried out position arrangement according to the relevance of the sub-font file of storing, so that in the future to the store and management of data, improve the efficient of operation.
As concrete embodiment, described dot matrix display device 3 is LED display device or OLED display device or other dot matrix display device.Preferably, described dot matrix display device 3 is the LED display device.
As concrete embodiment, described dot matrix display device 3 also comprises be used to the ISN storage chip 33 of storing concrete displaying contents and is used for the dot matrix display screen 34 that word content shows, thus can with the dot matrix character data after upgrading immediately dot matrix display screen for example LED display show.When described dot matrix display device 3 shows, from ISN storage chip 33, read ISN first by single-chip microcomputer 31, it is the content that is used for the literal demonstration with the form storage of ISN in the described ISN storage chip 33, then from dot matrix word library chip 32, read the dot array data that shows for font, process finally by crossing reading scan, just the word content of different fonts can be presented at dot matrix display screen 34 for example on the LED display.
As better embodiment, described dot matrix word library chip 32 is FLASH chip or other non-volatile storage chips; Certainly, those skilled in the art can also adopt other memory element, as long as can realize storage.
Below with reference to preferred embodiment, the more new technological process of the dot matrix word library update system that the utility model is provided is elaborated.
Process font file: according to actual needs, the font file that host computer sends is cut apart, made it easy to upgrade operation.For example, FLASH dot matrix word library chip is supported the once minimum erase area of 4KB, and then can be divided into the 4KB valid data to font file is a sub-font file, so just can prevent from having influence on other data in order to upgrade partial data, improves dirigibility.Further, the form of font file need to be consistent with the file layout that host computer sends, otherwise need to carry out the file layout conversion, and concrete file layout conversion can adopt crossover tool commonly used to carry out, and specifically repeats no more.
The configuration host computer makes it corresponding with font file, so that host computer can be identified the transmission specified file and make dot matrix display device can accurately upgrade the data of appointed area.Wherein, described host computer is one and can sends to instrument on the CAN bus to data by certain agreement.
Dot matrix display device dot matrix word library online updating: open dot matrix display screen, enter the renewal boot in the single-chip microcomputer, judged whether update instruction, if then do not jump to application program, the demonstration that works, otherwise boot is upgraded in operation.In the normal operation procedure for displaying, if receive update instruction on the CAN bus, then can jump to the renewal boot again, prepare to receive more new data.When boot was upgraded in operation, the single-chip microcomputer in the dot matrix display device can be from image data on the CAN bus, and the dot array data programming of different fonts is entered in the dot matrix word library chip.After to be updated the finishing, dot matrix display screen can withdraw from and upgrade boot and jump to application program, re-starts the demonstration of normal operation.
Particularly, described host computer can send first update instruction, the signal dot matrix display device starts font file and upgrades operation, single-chip microcomputer described in the dot matrix display device is after the update instruction that receives on the CAN bus, replied, after host computer is waited to receive and replied, the font file data are sent to the CAN bus frame by frame get on.After single-chip microcomputer in the dot matrix display device receives the instruction of host computer renewal font file from the CAN bus, carrying out key tests, judge namely whether key is consistent with the agreement of being scheduled to, if verification is correctly then withdrawed from application program and is jumped to the renewal boot, and reply host computer, prepare to receive the font file data.Then, single-chip microcomputer gathers word-base data from the CAN bus, and the data programming is entered in the dot matrix word library chip.
Described single-chip microcomputer receives by the CAN bus that " hello as a kind of specific embodiment! " the literal ISN and the font file of Chinese-language lishu font, and with described " hello! " the literal ISN write the ISN storage chip, and the font file of described Chinese-language lishu font is write in the dot matrix word library chip, specific as follows: dot matrix display screen reads from the ISN storage chip that " hello! " ISN, read from the dot matrix word library chip by ISN then that " hello! " dot array data; Dot matrix display screen for example LED display with the dot array data that reads in screen display out, obtain described font and be Chinese-language lishu " hello! ".
On the basis of aforementioned a kind of specific embodiment, as another kind of specific embodiment, described single-chip microcomputer receives the font file of the thin surplus body of Chinese by the CAN bus, behind dot matrix word library online updating system update, the font file of original Chinese-language lishu font is override, final dot matrix display screen for example LED display with the dot array data that reads in screen display out obtains described font thin black for Chinese " hello! ".
On the basis of aforementioned another kind of specific embodiment, as another specific embodiment, described single-chip microcomputer receives the font file of Chinese-language bright cloud font by the CAN bus, behind dot matrix word library online updating system update, the font file of the thin surplus body of original Chinese is override, final dot matrix display screen for example LED display with the dot array data that reads in screen display out obtains described font and is Chinese-language bright cloud " hello! ".
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a dot matrix word library online updating system is characterized in that, comprises upper computer module, CAN bus and dot matrix display device, wherein:
Described upper computer module comprises host computer and USB-CAN converter, and described host computer is transferred to font file on the CAN bus through the USB-CAN converter;
Described dot matrix display device comprises single-chip microcomputer and dot matrix word library chip, and described single-chip microcomputer receives font file from the CAN bus, and the font file that receives is deposited in the dot matrix word library chip.
2. dot matrix word library online updating according to claim 1 system is characterized in that, the font file that described host computer sends is divided into some sub-font files, and correspondence is provided with several piece storage spaces in the described dot matrix word library chip.
3. dot matrix word library online updating according to claim 2 system is characterized in that, described several piece storage spaces carry out position arrangement by the relevance of sub-font file.
4. dot matrix word library online updating according to claim 1 system is characterized in that, described dot matrix display device is the LED display device.
5. dot matrix word library online updating according to claim 1 system is characterized in that, described dot matrix display device also comprises be used to the ISN storage chip of storing concrete displaying contents and is used for the dot matrix display screen that word content shows.
6. dot matrix word library online updating according to claim 1 system is characterized in that, described dot matrix word library chip is the FLASH chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162219 CN202650006U (en) | 2012-04-17 | 2012-04-17 | Bitmap font online updating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220162219 CN202650006U (en) | 2012-04-17 | 2012-04-17 | Bitmap font online updating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650006U true CN202650006U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220162219 Expired - Lifetime CN202650006U (en) | 2012-04-17 | 2012-04-17 | Bitmap font online updating system |
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| CN (1) | CN202650006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536955A (en) * | 2014-12-24 | 2015-04-22 | 深圳熙谷威生物医疗科技有限公司 | Method and system for configuring machine language, word stock file and translation file through PC |
-
2012
- 2012-04-17 CN CN 201220162219 patent/CN202650006U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536955A (en) * | 2014-12-24 | 2015-04-22 | 深圳熙谷威生物医疗科技有限公司 | Method and system for configuring machine language, word stock file and translation file through PC |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |