CN201885737U - Digital display instrument - Google Patents
Digital display instrument Download PDFInfo
- Publication number
- CN201885737U CN201885737U CN2010206612865U CN201020661286U CN201885737U CN 201885737 U CN201885737 U CN 201885737U CN 2010206612865 U CN2010206612865 U CN 2010206612865U CN 201020661286 U CN201020661286 U CN 201020661286U CN 201885737 U CN201885737 U CN 201885737U
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- microprocessor
- button
- display panel
- displaying meter
- digital
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- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model relates to a digital display instrument which comprises a power supply, a CAN (Controller Area Network) communication bus module, a microprocessor, a button and display driving circuit and a display panel; the button and display driving circuit is connected with the display panel and the microprocessor; the microprocessor is in communication connection with a periphery device through the CAN bus module; the power supply provides working power supply to the microprocessor, the button and display driving circuit and the display panel; the digital display instrument receives digital signals from a data acquisition module so that the error probability in transmission process is reduced; the instruments are all hung on a communication cable; the number of the instruments to be displayed can be increased by adding on the bus without adding cable externally so that the cost is reduced; through the setting button of the digital display instrument, the displayed analog quantity and modification measurement range of any channel can be modified, and the inspection for a plurality of channels can be carried out; the digital display instrument is convenient to debug and maintain, thereby reducing the cost of construction cable and facilitating the maintenance.
Description
Technical field
The utility model relates to boats and ships data acquisition and display technique field, especially the analog quantity digital displaying meter used of boats and ships data acquisition system (DAS).
Background technology
This digital Displaying Meter is used for indicating the analog quantity parameter value of boats and ships data acquisition system (DAS), is beneficial to observe.The tradition Displaying Meter adopts single pointer-type, charactron or direct light belt display mode mostly.Pointer instrument is directly perceived, but precision and resolution are lower, is difficult to realize that multirange shows, can't patrol and examine automatically, can't change range, and adjusting the type that shows if desired or increasing instrument needs cable laying again, and the antivibration ability; In addition, traditional Displaying Meter all with simulating signal as transmission signals, precision is low, is subject to electromagnetic interference effect, and every instrument directly is connected with sensor, the cable that needs is inconvenient to construct and keep in repair.The general nil signal handling capacity of tradition Displaying Meter so can only indicate the signal value of input passively, simply, does not have functions such as verification, the demonstration of branch journey and Nonlinear Processing, more the nil ability to communicate.
The utility model content
The purpose of this utility model provides a kind of digital displaying meter, and the precision that has the Displaying Meter demonstration now is low, resolution is low, used cable is many, dilatation inconvenience, the problem of nil signal handling capacity to solve.
For achieving the above object, a kind of digital displaying meter of the present utility model comprises power supply, CAN communication bus module, microprocessor, button and display driver circuit and display panel, described button is connected with microprocessor with display panel respectively with display driver circuit, this microprocessor is connected with the peripherals communication by the CAN bus module, and described power supply provides working power for microprocessor, button and display driver circuit and display panel.
Further, also comprise eeprom memory, this eeprom memory links to each other with described microprocessor.
Further, also be connected with watchdog circuit on the described microprocessor.
Further, described display panel adopts the digital display tube of LED.
Further, described display panel is provided with button is set.
Further, described microprocessor is an embedded controller.
Further, digital displaying meter also comprises the RS485 interface, and described embedded controller also can be connected with the peripherals communication by the RS485 interface.
Digital displaying meter of the present utility model receives the digital signal of data acquisition module, has reduced the probability that can produce error in transmission course; In-site modeling amount data can be gathered nearby by acquisition module, transmit at a distance by one two core communication cable, all instrument all are articulated on this single data bus, increase the quantity that instrument shows if desired, it is just passable only to need to increase a digital displaying meter on bus, and the outside does not need to increase cable; By the button that is provided with of digital displaying meter, can revise the analog quantity of any one passage of demonstration, and can revise range.Also can patrol and examine a plurality of passages; The convenient debugging of digital displaying meter, reduce the construction party cable cable cost, and convenient for maintaining.
Description of drawings
Fig. 1 is the schematic diagram of the utility model digital displaying meter embodiment;
Fig. 2 is the utility model digital displaying meter communication connection layout.
Embodiment
Digital displaying meter of the present utility model as shown in Figure 1, this digital displaying meter comprises 5V stabilized voltage supply, CAN communication bus module, RS485 interface, eeprom memory, microprocessor, watchdog circuit, button and display driver circuit and display panel, stabilized voltage supply provides working power for above-mentioned active components and parts, microprocessor is a 89C51 type embedded controller, and display panel adopts the digital display tube of LED.Button is connected with microprocessor with display panel respectively with display driver circuit, and this microprocessor is connected with the peripherals communication by CAN bus module or RS485 interface respectively, and embedded controller also links to each other with watchdog circuit with eeprom memory respectively.As shown in Figure 2, be linked with four digital displaying meters on the CAN bus in the central control room, CAN communication bus module receives from analogue collection module collection and the information by the CAN bus transfer, by the digital display panel of embedded controller 89C51 conversion process rear drive analog quantity is shown.The display panel of every digital displaying meter is provided with " SET " button is set, and can revise the analog quantity of any one passage of demonstration, and can revise range.In-site modeling amount data can be gathered nearby by acquisition module, transmit at a distance by one two core communication cable, all instrument all are articulated on this single data bus, increase the quantity that instrument shows if desired, it is just passable only to need to increase a digital displaying meter on bus, and the outside does not need to increase cable.
Claims (7)
1. digital displaying meter, it is characterized in that: comprise power supply, CAN communication bus module, microprocessor, button and display driver circuit and display panel, described button is connected with microprocessor with display panel respectively with display driver circuit, this microprocessor is connected with the peripherals communication by the CAN bus module, and described power supply provides working power for microprocessor, button and display driver circuit and display panel.
2. digital displaying meter according to claim 1 is characterized in that: also comprise eeprom memory, this eeprom memory links to each other with described microprocessor.
3. digital displaying meter according to claim 1 is characterized in that: also be connected with watchdog circuit on the described microprocessor.
4. digital displaying meter according to claim 1 is characterized in that: described display panel adopts the digital display tube of LED.
5. digital displaying meter according to claim 1 is characterized in that: described display panel is provided with button is set.
6. according to each described digital displaying meter among the claim 1-5, it is characterized in that: described microprocessor is an embedded controller.
7. digital displaying meter according to claim 6 is characterized in that: digital displaying meter also comprises the RS485 interface, and described embedded controller also can be connected with the peripherals communication by the RS485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612865U CN201885737U (en) | 2010-12-15 | 2010-12-15 | Digital display instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612865U CN201885737U (en) | 2010-12-15 | 2010-12-15 | Digital display instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201885737U true CN201885737U (en) | 2011-06-29 |
Family
ID=44183282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206612865U Expired - Fee Related CN201885737U (en) | 2010-12-15 | 2010-12-15 | Digital display instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201885737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823724A (en) * | 2014-03-18 | 2014-05-28 | 核工业理化工程研究院 | Method for monitoring channel polling and CAN communication through hardware watchdog |
| CN104809971A (en) * | 2014-11-13 | 2015-07-29 | 佛山市众盈电子有限公司 | Information display device of off-network solar power supply system |
-
2010
- 2010-12-15 CN CN2010206612865U patent/CN201885737U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823724A (en) * | 2014-03-18 | 2014-05-28 | 核工业理化工程研究院 | Method for monitoring channel polling and CAN communication through hardware watchdog |
| CN103823724B (en) * | 2014-03-18 | 2017-02-15 | 核工业理化工程研究院 | Method for monitoring channel polling and CAN communication through hardware watchdog |
| CN104809971A (en) * | 2014-11-13 | 2015-07-29 | 佛山市众盈电子有限公司 | Information display device of off-network solar power supply system |
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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: 20110629 Termination date: 20121215 |