CN204302735U - A kind of flameproof instrument with Infrared push button - Google Patents
A kind of flameproof instrument with Infrared push button Download PDFInfo
- Publication number
- CN204302735U CN204302735U CN201420857918.3U CN201420857918U CN204302735U CN 204302735 U CN204302735 U CN 204302735U CN 201420857918 U CN201420857918 U CN 201420857918U CN 204302735 U CN204302735 U CN 204302735U
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- Prior art keywords
- push button
- instrument
- main control
- control unit
- infrared
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Abstract
The utility model provides a kind of flameproof instrument with Infrared push button, comprises main control unit and HMI interface unit; Described main control unit and described HMI interface unit are by the communication of UART protocol realization; Described HMI interface unit comprises HMI controller, LCD liquid crystal display and driver element, Infrared push button unit; Described HMI controller is transferred to the main control unit of radar levelmeter the Infrared push button data detected, and described main control unit feedback information output display on LCD liquid crystal display.The utility model need not turn on shell, can realize field instrument debugging operations, especially in explosion risk region, flame-proof type product is without the need to power-off, get final product debugging operations instrument, achieve safety, reliably, again solve site problems rapidly, thus greatly reduce debugging maintenance cost.
Description
Technical field
The utility model relates to the application of a kind of Infrared push button in instrument, particularly relates to a kind of application in flameproof instrument.
Background technology
At industrial automation, the various instrument of normal employing is used for the occasion measure field material level data such as chemical industry, oil, metallurgy, power plant, manufacture, as level switch, radar levelmeter, ultrasonic material level meter, electric floating drum level meter, magnetostriction level meter are revolved in radio-frequency guide-admission object-position switch, tuning fork level switch, the excellent level switch that shakes, resistance.
And the fatalness region easily producing blast is all included in occasions such as chemical industry, oil, metallurgy, power plant, manufactures, and for this deathtrap many employings flame-proof type or intrinsic safety type industrial instrument, need to adopt flameproof instrument because instrumental technique implementation feature or on-the-spot other powerful device, network layout factor etc. affect some occasion.
Flameproof instrument is more most important at fatalness region is that outer shell protection inside may produce cremate and can not to ignite blast, and therefore flameproof instrument just must can open shell after power-off, cannot operate instrument by on-the-spot charged field adjustable.
In general instrument, many employings light touch type switch key, this type of button must open shell could debugging operations field instrument, and Flameproof shell according to Standard often design very complicated, open shell more time-consuming, also need by TO in addition.
Utility model content
The utility model provides a kind of flameproof instrument with Infrared push button, for the charged debugging operations demand in existing scene, shows mirror operation Infrared push button, realize safety, reliably, facilitate Commissioning field industrial instrument through shell safety glass.
A kind of flameproof instrument with Infrared push button of the utility model, comprises main control unit and HMI interface unit; Described main control unit and described HMI interface unit are by the communication of UART protocol realization; Described HMI interface unit comprises HMI controller, LCD liquid crystal display and driver element, Infrared push button unit; Described HMI controller is transferred to radar levelmeter main control unit the Infrared push button data detected, and described main control unit feedback information output display on LCD liquid crystal display.
Preferably, described HMI controller is a MCU chip.
Preferably, described Infrared push button unit comprises four receptions LED light, four groups of infrared transceivers and infrared transceiver control chips.
Preferably, described LCD liquid crystal display and driver element comprise the serial port drive chip of LCD liquid crystal display and I2C interface.
Preferably, described radar levelmeter main control unit is MCU master chip.
The utility model is owing to utilizing above technical scheme, and the beneficial effect made it have is:
The utility model need not turn on shell, can realize the debugging operations of field instrument, especially in explosion risk region, flame-proof type product is without the need to power-off, get final product debugging operations instrument, achieve safety, reliably, again solve site problems rapidly, thus greatly reduce debugging maintenance cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of HMI interface unit in the utility model.
Detailed description of the invention
For the benefit of to the further understanding of the utility model prior art, be described below in conjunction with drawings and Examples.
Shown in composition graphs 1, a kind of flameproof instrument with Infrared push button of the present utility model, comprise a HMI interface unit 100 and main control unit 200, be connected by four wires between the two, four wires are respectively: 3.3V DC voltage, reference ground wire and two UART serial port data lines.
As shown in Figure 2, HMI interface unit 100 comprises HMI controller 110, Infrared push button unit 120, LCD liquid crystal display and driver element 130.
Wherein, main control unit 200 is central control system cores of instrument, is a MCU chip, is responsible for the detection and treatment of material level, receives user and debugs configuration data, and relevant data is outputted to LCD display or other external unit.
HMI controller 110 comprises MCU chip, reference clock oscillating circuit and reset circuit, for identifying that user is infrared by unit 120 data, and carrying out filtering, then correct key assignments being sent to main control unit 200; Data, control LCD liquid crystal display and driver element 130 output display that the needs simultaneously receiving main control unit 200 transmission show on LCD liquid crystal display.
Infrared push button unit 120 comprises four buttons and receives response LED light, four infrared transceivers and infrared transceiver driving chip, and HMI control unit 110 cycle sends pulse signal to infrared transceiver driving chip, and cycle detection Received signal strength; When having button operation above infrared transceiver, button receives response LED light and can light, and HMI controller 110 also can receive inverse signal, processes after filtering and correct key assignments data are sent to main control unit 200.
Be one deck safety glass outside Infrared push button, namely play flame proof effect, Infrared push button can be operated through safety glass again, therefore can realize charged field adjustable flameproof instrument.
LCD liquid crystal display and driver element 130 are the COG lattice lcd display of a serial interface and the driving chip of I2C interface, HMI controller 110, the driving chip needing the Data Control I2C interface shown from main control unit 200, makes it show at COG lattice lcd display.
The utility model replaces traditional touch key Infrared push button, through safety glass, need not open shell just can direct control instrument, particularly can hot line job flameproof instrument at fatalness region, thus object that is very safe, that complete reliably, again field adjustable operation instrument easily and quickly.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. with a flameproof instrument for Infrared push button, it is characterized in that: comprise main control unit and HMI interface unit; Described main control unit and described HMI interface unit are by the communication of UART protocol realization; Described HMI interface unit comprises HMI controller, LCD liquid crystal display and driver element, Infrared push button unit; Described HMI controller is transferred to radar levelmeter main control unit the Infrared push button data detected, and described main control unit feedback information output display on LCD liquid crystal display.
2., as claimed in claim 1 with the flameproof instrument of Infrared push button, it is characterized in that: described HMI controller is a MCU chip.
3. as claimed in claim 1 with the flameproof instrument of Infrared push button, it is characterized in that: described Infrared push button unit comprises four and receives LED light, four groups of infrared transceivers and infrared transceiver control chip.
4., as claimed in claim 1 with the flameproof instrument of Infrared push button, it is characterized in that: described LCD liquid crystal display and driver element comprise LCD liquid crystal display and I
2the serial port drive chip of C interface.
5. the flameproof instrument with Infrared push button as described in any one of Claims 1-4, is characterized in that: described radar levelmeter main control unit is MCU master chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857918.3U CN204302735U (en) | 2014-12-25 | 2014-12-25 | A kind of flameproof instrument with Infrared push button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857918.3U CN204302735U (en) | 2014-12-25 | 2014-12-25 | A kind of flameproof instrument with Infrared push button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204302735U true CN204302735U (en) | 2015-04-29 |
Family
ID=53108265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857918.3U Expired - Fee Related CN204302735U (en) | 2014-12-25 | 2014-12-25 | A kind of flameproof instrument with Infrared push button |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204302735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607239A (en) * | 2021-07-12 | 2021-11-05 | 浙江中控技术股份有限公司 | Man-machine interaction method and system for realizing hybrid contact type radar level meter |
-
2014
- 2014-12-25 CN CN201420857918.3U patent/CN204302735U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607239A (en) * | 2021-07-12 | 2021-11-05 | 浙江中控技术股份有限公司 | Man-machine interaction method and system for realizing hybrid contact type radar level meter |
| CN113607239B (en) * | 2021-07-12 | 2024-01-12 | 中控技术股份有限公司 | Man-machine interaction method and system for realizing hybrid contact type radar level gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |