CN203465712U

CN203465712U - Instrument liquid crystal display module

Info

Publication number: CN203465712U
Application number: CN201320448675.3U
Authority: CN
Inventors: 宋翰林
Original assignee: TOSHIBA ELECTRONICS (DALIAN) CO Ltd
Current assignee: TOSHIBA ELECTRONICS (DALIAN) CO Ltd
Priority date: 2013-07-26
Filing date: 2013-07-26
Publication date: 2014-03-05
Anticipated expiration: 2023-07-26

Abstract

An instrument liquid crystal display module comprises a communication module, an intelligent control core and a liquid crystal display screen. The intelligent control core is provided with a display module and the communication module, and the liquid crystal display screen is connected with the intelligent control core. The instrument liquid crystal display module solves the problems of long development cycle and poor user interactivity and instantaneity of an existing instrument liquid crystal display technology, so that the design cycle of a man-machine interaction interface is greatly shortened, introduction difficulty is reduced, and a customer can independently develop or modify the man-machine interaction interface according to the requirement of the customer after short-time training.

Description

Instrument and meter LCD MODULE

Technical field

The utility model relates to technical field of automatic control, relates in particular to a kind of human-computer interaction interface lcd technology.

Background technology

In the design of instrument and meter, man-machine interface is indispensable ingredient, development along with automatic control technology, user requires also to improve for input and the display interface of instrument and meter thereupon, the instrument and meter display module of Current Domestic, the LED light-emitting nixie tube that major part is still used coordinates keyboard, the input technologies such as button, Presentation Function single (conventionally can only show numeral and character) not only, power consumption is higher, and development difficulty is large, the cycle is long, cannot meet user's needs now.Along with the fast development of hardware technology, be necessary to develop a kind of brand-new instrument and meter display technique, to improve these deficiencies of existing display technique.

Utility model content

In order to overcome the input of existing instrument and meter and the problems referred to above that display interface exists, the utility model provides a kind of more simple and reliable instrument and meter LCD MODULE.

The technical scheme that the utility model adopted is for achieving the above object: instrument and meter LCD MODULE, comprise communication module, Based Intelligent Control core and liquid crystal display, Based Intelligent Control core is provided with display module, communication module, and liquid crystal display is connected with Based Intelligent Control core.

Described communication module is TTL/RS232 module, TTL/RS422 module or TTL/RS485 module.

Also be provided with in mutual touch panel, touch panel is connected with display module.

Described touch panel is capacitance plate or touch screens.

Instrument and meter LCD MODULE of the present utility model, existing instrument and meter lcd technology construction cycle length, user interactivity and the poor problem of real-time have been solved, the cycle of the design of man-machine interface is shortened greatly, introduction difficulty reduces, and makes client at the demand stand-alone development through energy basis after the training of short period oneself or revise human-computer interaction interface.

Accompanying drawing explanation

Fig. 1 is the utility model instrument and meter LCD MODULE schematic diagram.

Embodiment

Instrument and meter LCD MODULE principle of the present utility model as shown in Figure 1, comprise communication module, Based Intelligent Control core and liquid crystal display, Based Intelligent Control core is provided with display module, communication module, liquid crystal display is connected with Based Intelligent Control core, communication module is TTL/RS232 module, TTL/RS422 module or TTL/RS485 module, also be provided with in mutual touch panel, touch panel is connected with display module, and touch panel is capacitance plate or touch screens.

In figure:

1. host computer: refer to directly to send the computing machine of controlling order, be generally single-chip microcomputer sending module in actual items, household electrical appliance terminal etc.

2. communication module: carry out communication by RS232 serial ports and host computer, and communication instruction is passed to Based Intelligent Control core.

3. ARM framework: the hardware structure of TFT module, for operating system provides support platform.

4. QNX system: run on the embedded system on ARM framework.Safeguarding flash player, the important process such as QDB.

5. bridge program: be responsible for the communication instruction of communication module transmission to change, refer to that the interface file that can be shown in module identifies, and send to display module by XMLSocket.

6. FlashPlayer: the core of liquid crystal display systems, runnable interface file.

7. QDB module: be equivalent to a small-sized relevant database, can, by interface file by code, realize power down storage.8. interface file: the main interface of instrument and meter liquid crystal display is SWF formatted file, runs on FlashPlayer, can call QDB module, communication module.

Serial communication modular of the present utility model is connected with Based Intelligent Control core, by the instruction transformation in bridge program, is connected with display module, and display module drives liquid crystal display display instrument instrument interface file.Utilize the power of QNX real time operating system, embed therein on the TFT product that flash player player makes at us and can directly move the swf file that flash generates, display interface file using this file as instrument and meter, and can be undertaken alternately by keyboard mode and touch screen mode and system according to user's request.

The flash player that native system embeds is flash player8, can support ActionScript2.0 language (hereinafter to be referred as as2), basic interface design cycle and common flash design cycle are basically identical, by art designing, carry out Pages Design, by the built-in function of as2, carry out interaction design and (notice that in Flash IDE issue, middle player being set is set to flash player 8, script is set to AS2), onPress and the onRelease event in corresponding Flash distinguished in the operation of pressing and lift of touch-screen.

For instrument and meter liquid crystal interface, show, very important problem is exactly that to carry out communication mutual with host computer, and we carry out serial communication by the XML socket mode in as2 and host computer.Between host computer and slave computer, by bridge program, carry out the conversion of information format, the form of the basic employing ID=VALUE of communication, be that ID value representation is wanted operand, VALUE value represents the assignment concrete to object, according to the specific requirement ID of actual items, can represent corresponding different implication from VALUE value, while showing as current measurement, it can be AC=3.4 r n that host computer transmits character string, now AC represents that measuring object is alternating current, 3.4 representative voltage Wei3.4Ge units.The socket that is an xml form that in slave computer, swf file is received, by the judgement of the ID to wherein and VALUE label, can carry out corresponding operation response to the page.And native system is preset many steering orders, the mode that can be sent by Socket by as2 program is directly set the hardware parameter of screen.

In addition, in native system, also comprised QDB module, can regard mini-relational database system as, greatly expanded the function of as2, make our instrument and meter display system power down to store some necessary data, QDB database is used stsndard SQL statement for the operation of tables of data, and being easy to increases tables of data, delete the operations such as change and inquiry.In general, the data that read in QDB are more many soon than the data that directly read in host computer.

By a series of improvement to instrument and meter display technique, make the exploitation of instrument and meter display interface become simpler, it is more safe and reliable that communication becomes, and the element of interface display is diversity more, and can carry out data input by various modes such as keyboard or touch-screens.

The animation file of swf form is because its small and exquisite volume, powerful various animation interactive mode, convenient and simple Integrated Development Environment and enrich easy-to-use built-in function, in network, be widely used, the swf file that native system generates flash is as the main interface of interactive interface, development difficulty and the time of human-computer interaction interface have been reduced greatly, by QNX system to the relevant support storehouse of flash and the optimization on code, making to generate swf file can more adapt under embedded lower environment and move, utilizing flash to make interface file makes mutual effect more diversified.And by bridge program, complete the communication function between host computer and slave computer, the problem that has solved the data communication in Industry Control and shown in real time.

Claims

1. instrument and meter LCD MODULE, is characterized in that: comprise communication module, Based Intelligent Control core and liquid crystal display, Based Intelligent Control core is provided with display module, communication module, and liquid crystal display is connected with Based Intelligent Control core.

2. instrument and meter LCD MODULE according to claim 1, is characterized in that: described communication module is TTL/RS232 module, TTL/RS422 module or TTL/RS485 module.

3. instrument and meter LCD MODULE according to claim 1, is characterized in that: be also provided with in mutual touch panel, touch panel is connected with display module.

4. instrument and meter LCD MODULE according to claim 3, is characterized in that: described touch panel is capacitance plate or touch screens.