CN201203782Y - Human-machine interface control device - Google Patents
Human-machine interface control device Download PDFInfo
- Publication number
- CN201203782Y CN201203782Y CNU2008200581052U CN200820058105U CN201203782Y CN 201203782 Y CN201203782 Y CN 201203782Y CN U2008200581052 U CNU2008200581052 U CN U2008200581052U CN 200820058105 U CN200820058105 U CN 200820058105U CN 201203782 Y CN201203782 Y CN 201203782Y
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- touch
- screen
- machine interface
- digital signal
- control device
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Abstract
The utility model relates to a human-machine interface control device and a DSP digital signal controller is used to control a plasma cutting device, an inverter, a brushless direct current motor or the like, which are connected with a touch screen interface display system by a RS 232 serial interface, so as to realize the control of human-machine interface, thus the interface is visual, beautiful, and easy to operate.
Description
Technical field
The utility model relates to a kind of man-machine interface control device, particularly a kind of man-machine interface control device that belongs to perfect man-machine interface control technology in the application of industrial control field.
Background technology
In recent years, digital signal processor DSP, speed strong with its function fast, programme and develop easily that characteristics have obtained application more and more widely at industrial control field.Many times be that control core device inside has a lot of parameters with DSP, need carry out a large amount of interactive operations with the user, and the interactive operation of using keyboard to add the LCD demonstration feels so not attractive in appearance, use neither be very convenient, uses the industrial control computer of band touch-screen to strengthen the cost expense again.The graphical man-machine interface touch-screen that have the interactive operation ability this moment is exactly a kind of good selection.In actual the use, because touch-screen is generally at Programmable Logic Controller PLC design, so the directly communication of DSP and touch-screen must be developed corresponding communication program according to the communications protocol of touch-screen.
Summary of the invention
The utility model is at the direct technical matters of communication of existing DSP and touch-screen, a kind of man-machine interface control device has been proposed, every is that various opertaing devices, the instrument and meter of core controller can use this device to realize the control of man-machine interface with DSP, make objective interface, attractive in appearance, and operation easily.
The technical solution of the utility model is: a kind of man-machine interface control device, it comprises DSP digital signal controller, touch-screen, it is characterized in that also comprising RS232 level shifter interface circuit, the DSP digital signal controller connects by RS232 level shifter interface circuit heel touch-screen, touch-screen initiatively sends various reading and writing requests, and the DSP digital signal controller receives Intra-request Concurrency and goes out corresponding response data.
Described RS232 level shifter interface circuit, comprise serial SCI module, MAX232 chip and DB9 type connector, serial SCI module in the DSP digital signal controller, by finishing the MAX232 chip of Transistor-Transistor Logic level and CMOS level conversion, output on the DB9 type connector as the connector of touch-screen.
DSP control is used for industrial control systems such as CUT, inverter, brshless DC motor, it links to each other with the touch screen interface display system, is that the control core device needs to give the user with many parameters, result and various graphic presentation in control procedure with DSP through the RS232 serial line interface, the controlled variable that has simultaneously needs online modification, touch-screen is used for display device state, operation indication, parameter setting, motion flow, statistical data, warning information, simple and easy form etc. and online modification controlled variable exactly.
The beneficial effects of the utility model are: the utility model man-machine interface control device is realized the control of man-machine interface, makes objective interface, attractive in appearance, and operation easily.
Description of drawings
Fig. 1 is the utility model man-machine interface control device schematic block circuit diagram;
Fig. 2 is the utility model man-machine interface control device communication part circuit diagram.
Embodiment
Man-machine interface control device schematic block circuit diagram comprises DSP digital signal controller, RS232 level shifter interface circuit, touch-screen as shown in Figure 1, and the DSP digital signal controller connects by RS232 level shifter interface circuit heel touch-screen.This DSP has certain versatility with the novel man-machine interface control system of touch-screen, for the communication program that makes DSP and touch-screen is unlikely to be subjected to the influence that touch screen interface changes, be necessary communication program is designed to the layering structure, different details is encapsulated in the different layers, only need to revise slightly just and can use in a lot of industry spot, specific embodiments is chosen in writes specific touch screen interface on the CUT, show and revise some concrete parameters.
DSP is as the CUT power control system, in plasma cutting power supply, add the DSP control panel, by dsp program is realized power factor correction (PFC), allow and before being input to the plasma cutting nozzles, it is controlled with the DSP control panel through the voltage of bridge rectifier.Allow voltage be tending towards a stationary value, and allow current following voltage change synchronously, correcting power factors, the utilization factor of raising power supply.
Touch-screen is used for display device state, operation indication, parameter setting, motion flow, statistical data, warning information, simple and easy form etc. and online modification controlled variable.And develop corresponding communication program according to the communications protocol of touch-screen.
The touch screen interface design description is as follows:
(1) cutting current can be selected as required, and scope is 30A-100A.
(2) cut mode can be according to being cut object, the selection of required cutting mode.List pilot arc control model, normal mode and channeling pattern up and down successively on touch-screen the right, the channeling pattern has increased the pilot arc electric current.
(3) state indication, makeing mistakes interlocking etc. to occur, but overvoltage is meant input voltage not in opereating specification, temperature alarming may exceed dutycycle or fan malfunction etc. to be caused.
The communication part circuit diagram as shown in Figure 2, the DSP digital signal controller has serial SCI module, finish Transistor-Transistor Logic level and CMOS level conversion by MAX232, with the connector of DB9 type connector as DSP and touch-screen, the PWS touch-screen initiatively sends various reading and writing requests during communication, and DSP receives Intra-request Concurrency and goes out corresponding response data.
Claims (2)
1, a kind of man-machine interface control device, it comprises DSP digital signal controller, touch-screen, it is characterized in that also comprising RS232 level shifter interface circuit, the DSP digital signal controller connects by RS232 level shifter interface circuit heel touch-screen, touch-screen initiatively sends various reading and writing requests, and the DSP digital signal controller receives Intra-request Concurrency and goes out corresponding response data.
2, man-machine interface control device according to claim 1, it is characterized in that described RS232 level shifter interface circuit, comprise serial SCI module, MAX232 chip and DB9 type connector, serial SCI module in the DSP digital signal controller, by finishing the MAX232 chip of Transistor-Transistor Logic level and CMOS level conversion, output on the DB9 type connector as the connector of touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200581052U CN201203782Y (en) | 2008-05-07 | 2008-05-07 | Human-machine interface control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200581052U CN201203782Y (en) | 2008-05-07 | 2008-05-07 | Human-machine interface control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203782Y true CN201203782Y (en) | 2009-03-04 |
Family
ID=40426094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200581052U Expired - Fee Related CN201203782Y (en) | 2008-05-07 | 2008-05-07 | Human-machine interface control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203782Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223057A (en) * | 2011-07-01 | 2011-10-19 | 深圳市易驱电气有限公司 | Touch control type frequency converter and control method thereof |
-
2008
- 2008-05-07 CN CNU2008200581052U patent/CN201203782Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223057A (en) * | 2011-07-01 | 2011-10-19 | 深圳市易驱电气有限公司 | Touch control type frequency converter and control method thereof |
| CN102223057B (en) * | 2011-07-01 | 2013-05-01 | 深圳市易驱电气有限公司 | Touch control type frequency converter and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20100507 |