CN1987560A - CAN bus programmable display device - Google Patents
CAN bus programmable display device Download PDFInfo
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- CN1987560A CN1987560A CN 200510111897 CN200510111897A CN1987560A CN 1987560 A CN1987560 A CN 1987560A CN 200510111897 CN200510111897 CN 200510111897 CN 200510111897 A CN200510111897 A CN 200510111897A CN 1987560 A CN1987560 A CN 1987560A
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- singlechip controller
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Abstract
The display device includes single chip controller, memory, communication interface module (CIM), control input module, driver module for liquid crystal display (LCD), and liquid crystal display device. Being connected to single chip controller respectively, the memory, CIM, control input module, and driver module for LCD are in use for bidirectional transmitting data. The input end of the liquid crystal display device is connected to the output end of driver module for LCD. Advantages are: high integrity, small volume, high reliability, and easy of use. Being able to connecting data port of industrial equipment, the display device meets design requirement in technical grade.
Description
Technical field
The present invention relates to a kind of display device, relate in particular to a kind of CAN bus programmable display device.
Background technology
Liquid crystal indicator has occupied a consequence in demonstration field, plane, almost be the indispensable part of notebook computer and palm PC.Along with the continuous progress of lcd technology, the LCD LCD that possesses level and smooth display screen begins to enter step by step desktop system market again.Develop so far, more electronic product all adopts LCD as display (as mobile phone, portable television, game machine etc.) one after another, thereby also promotes the LCD industry to obtain vigorous growth.
At industrial control field, the liquid crystal indicator that domestic production is used mostly is low resolution, the small screen, monochromatic color low-end product.Its main cause is that the low side display device applications is simple, has a large amount of integrated display driver chips to select, and price is low, and is easy to use.High-end color liquid crystal display arrangement needs special display driver technology.The display device of domestic present widespread use mostly can only be accepted video signal, and many commercial Application are as video display devices.Heavy mechanical equipment, special vehicle, streamline, intelligent factory etc. often need to be equipped with display terminal and come the display system data, to make things convenient for the operation conditions of monitoring system.The general industrial data need be to be shown the video data that device is accepted through the processor and the special-purpose video card treatment conversion of the high like this calculation process ability of PC, could import LCD, show on LCD screen.Conversion, to handle the equipment cost that these data need drop into higher, and technical difficulty is also big, is not easy to general engineering technology personnel widespread use, and can not be equipped with the high performance like this processor of PC under the particular industry occasion.
Summary of the invention
Purpose of the present invention is exactly in order to provide a kind of CAN bus programmable display device.
The objective of the invention is to be achieved through the following technical solutions: a kind of CAN bus programmable display device comprises singlechip controller, storer, communication interface modules, control load module, liquid crystal display driver module and LCD; Described storer, communication interface modules, control load module and liquid crystal display driver module are connected with singlechip controller respectively, bi-directional transfer of data, and the input end of described LCD connects liquid crystal display driver module output terminal.
Described singlechip controller is selected 8,16 or 32 single-chip microcomputers of C51, C166 series for use, 16 single-chip microcomputer XC167 of company of preferred Infineon.
Described storer comprises permanent data storage (EEROM), ephemeral data memory buffer unit (RAM) and program storage (EEROM or FLASH), temporary data memory is wherein selected K6R4016C1D-TI10, IS61C6416AL-12TI for use, and program storage can be selected M29F160BB for use.
Be provided with the CAN interface that TLE6250G or 82C251 chip connect singlechip controller in the described communication interface modules, be provided with the serial communication interface that the MAX232 chip connects singlechip controller, be provided with the USB interface that CH341T connects singlechip controller, be provided with 485 interfaces that 485 communication chips connect singlechip controller.
Be provided with button input, knob input, touch-screen input in the described control load module.
Described liquid crystal display driver module adopts WLTI-04.
Described LCD adopts LM8V302.
Connect by parallel data at a high speed/address bus between described singlechip controller and data-carrier store, program storage, the liquid crystal display driver module.
The present invention has been owing to adopted above technical scheme, makes it have integrated level height, volume is little, fiduciary level is high, cost is low, easy to use advantage, can be directly connects with the device port of transmission industrial data, satisfy the technical grade designing requirement, and applied environment is wide.
Description of drawings
Fig. 1 is the synoptic diagram of CAN bus programmable display device of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and the specific embodiments.
Referring to Fig. 1, a kind of CAN bus programmable display device of the present invention comprises singlechip controller 1, storer 2, communication interface modules 3, control load module 4, liquid crystal display driver module 5 and LCD 6.Storer 2, communication interface modules 3, control load module 4 are connected bi-directional transfer of data with singlechip controller 1 respectively with liquid crystal display driver module 5.The input end of LCD 6 connects liquid crystal display driver module 5 output terminals.Connect by parallel data/address bus mode at a high speed between singlechip controller 1 and storer 2, the liquid crystal display driver module 5.
Storer 2 among the present invention comprises permanent data storage (EEROM), ephemeral data memory buffer unit (RAM) and program storage (EEROM or FLASH), temporary data memory is wherein selected K6R4016C1D-TI10, IS61C6416AL-12TI for use, program storage is selected M29F160BB for use, can store display routine, image data, system parameter etc. is set.Connect by the high-speed parallel data/address bus between singlechip controller 1 and the storer 2, fast swap data.
Communication interface modules 3 among the present invention is the external data channel of display device, for external unit and singlechip controller 1 swap data.The different data format data communication need possess different hardware interfaces and software protocol.Can be equipped with according to product line have the CAN interface, part or all of interface module such as 485 interfaces, 422 interfaces, 232 interfaces, USB interface, Ethernet interface.But the outside connection device comprises computer, controller, sensor, and the equipment and the instrument that possess these communication port.From these communication port, can programme to liquid crystal indicator, carry out function setting, the change display mode, the input video data reads liquid crystal indicator duty etc.Concrete communication interface device connects single-chip microcomputer function corresponding pin, adopts the TLE6250G interface chip promptly can connect single-chip microcomputer CAN mouth and display device output connector, and the realization display device is communicated by letter with outside CAN; Adopt the MAX232 chip to connect serial port of single chip computer and display device output connector, can realize display device and 232 outside serial communications; Adopt 485 communication chips to connect serial port of single chip computer and display device output connector, can realize communicating by letter in 485 of display device and outside; By Data Format Transform chip expanding communication mouth function, as adopt serial to change the chip of usb communication, connect serial port of single chip computer and display device output interface, can increase liquid crystal indicator usb communication interface, realize the communication that directly links to each other of liquid crystal indicator and PC USB mouth by this interface.
Control load module 4 among the present invention refers to inputting interfaces such as button on the display device, knob, touch-screen.
Liquid crystal display driver module 5 among the present invention is data channel of 6 of singlechip controller 1 and LCD.Also connect between singlechip controller 1 and the liquid crystal display driver module 5, call the data of 2 li of storeies, send to liquid crystal display driver module 5 fast by the high-speed parallel data/address bus.Liquid crystal display driver module 5 is converted to LCD acceptable image formatted data with the general industry formatted data that sends over and sends LCD 6 again to, and according to different LCD, provides different image data formats.Liquid crystal display driver module 5 is equipped with general-purpose simulation or digital VGA interface, can also directly accept conventional vision signal and show for display.Liquid crystal display driver module 5 adopts the display driver WLTI-04 of generation dragon electronics corporation with the FPGA exploitation, can satisfy general connection, driving, display requirement substantially.
LCD 6 among the present invention can adopt colour, the monochrome liquid crystal display of all size, for example LM8V302 of Sharp.
The present invention also provides the various components and parts of whole display device internal circuit required power supply.
In sum, CAN bus programmable display device of the present invention, inner integrated special-purpose image processor, controller and communication interface can be accepted the communication data formatted data used of industrial occasions usually as CAN, 485,232 etc., and can directly show.Before the demonstration, the engineering staff imagines by own, on the PC computer, work out display routine, by the powerful image-capable of PC, image is anticipated,, send to liquid crystal indicator by the various communication ports of liquid crystal indicator, store the data storage area into, liquid crystal indicator accesses to get final product when needs show.The programming of programming mode similar industrial frequency converter (PLC) etc., simple, easily, easy-to-use, the engineering staff needn't have relevant knowledges such as Flame Image Process fully, can work out the display routine of oneself.
The inner single-chip microcomputer that adopts of liquid crystal indicator is controlled peripheral components as controller, processing is from the data of communication port, conversion also is sent to the image processor the inside, utilize advantages such as the single-chip microcomputer cost is low, function is many, volume is little, reduce whole display device volume and cost, the image processing section that is adopted also adopts special-purpose image processing circuit, and suitably the simplified processor function is convenient to be connected with single-chip microcomputer.Along with the raising of single-chip microcomputer performance and image processor performance, the entire liquid crystal display device performance also will progressively improve.
Claims (8)
1, a kind of CAN bus programmable display device is characterized in that: comprise singlechip controller, storer, communication interface modules, control load module, liquid crystal display driver module and LCD; Storer, communication interface modules, control load module and liquid crystal display driver module are connected with singlechip controller respectively, bi-directional transfer of data, and the input end of LCD connects liquid crystal display driver module output terminal.
2, CAN bus programmable display device as claimed in claim 1 is characterized in that: described singlechip controller is selected 8,16 or 32 single-chip microcomputers of C51, C166 series for use, 16 single-chip microcomputer XC167 of company of preferred Infineon.
3, CAN bus programmable display device as claimed in claim 1, it is characterized in that: described storer comprises permanent data storage (EEROM), temporary data memory (RAM) and program storage (EEROM or FLASH), temporary data memory wherein can be selected K6R4016C1D-TI10, IS61C6416AL-12TI for use, and program storage can be selected M29F160BB for use.
4, CAN bus programmable display device as claimed in claim 1, it is characterized in that: be provided with the CAN interface that TLE6250G or 82C251 chip connect singlechip controller in the described communication interface modules, be provided with the serial communication interface that the MAX232 chip connects singlechip controller, be provided with the USB interface that CH341T connects singlechip controller, be provided with 485 interfaces that 485 communication chips connect singlechip controller.
5, CAN bus programmable display device as claimed in claim 1 is characterized in that: be provided with button input, knob input, touch-screen input in the described control load module.
6, CAN bus programmable display device as claimed in claim 1 is characterized in that: described liquid crystal display driver module adopts WLTI-04.
7, CAN bus programmable display device as claimed in claim 1 is characterized in that: described LCD adopts LM8V302.
8, CAN bus programmable display device as claimed in claim 1 is characterized in that: connect by parallel data at a high speed/address bus between described singlechip controller and data-carrier store, program storage, the liquid crystal display driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111897 CN1987560A (en) | 2005-12-23 | 2005-12-23 | CAN bus programmable display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510111897 CN1987560A (en) | 2005-12-23 | 2005-12-23 | CAN bus programmable display device |
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| CN1987560A true CN1987560A (en) | 2007-06-27 |
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| CN 200510111897 Pending CN1987560A (en) | 2005-12-23 | 2005-12-23 | CAN bus programmable display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833550A (en) * | 2010-03-10 | 2010-09-15 | 无锡市百川科技有限公司 | Method and device for intercepting English display information at real time and translating thereof into Chinese |
| CN102053614A (en) * | 2011-01-10 | 2011-05-11 | 哈尔滨工程大学 | Multi-way signal conversion and transmission device and method based on controller area network (CAN) bus line |
| CN103093734A (en) * | 2013-01-21 | 2013-05-08 | 佛山市顺德区龙睿电子科技有限公司 | Liquid crystal displayer (LCD) data control method applicable to massage armchair hand controller |
| CN104118368A (en) * | 2013-04-25 | 2014-10-29 | 张永辉 | Simple vehicle CAN data display device |
-
2005
- 2005-12-23 CN CN 200510111897 patent/CN1987560A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833550A (en) * | 2010-03-10 | 2010-09-15 | 无锡市百川科技有限公司 | Method and device for intercepting English display information at real time and translating thereof into Chinese |
| CN101833550B (en) * | 2010-03-10 | 2012-10-03 | 无锡市百川科技有限公司 | Method and device for intercepting English display information at real time and translating thereof into Chinese |
| CN102053614A (en) * | 2011-01-10 | 2011-05-11 | 哈尔滨工程大学 | Multi-way signal conversion and transmission device and method based on controller area network (CAN) bus line |
| CN103093734A (en) * | 2013-01-21 | 2013-05-08 | 佛山市顺德区龙睿电子科技有限公司 | Liquid crystal displayer (LCD) data control method applicable to massage armchair hand controller |
| CN104118368A (en) * | 2013-04-25 | 2014-10-29 | 张永辉 | Simple vehicle CAN data display device |
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Open date: 20070627 |