CN201892551U - Remote flow rate displaying device used for electromagnetic flowmeter - Google Patents
Remote flow rate displaying device used for electromagnetic flowmeter Download PDFInfo
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- CN201892551U CN201892551U CN2010206532038U CN201020653203U CN201892551U CN 201892551 U CN201892551 U CN 201892551U CN 2010206532038 U CN2010206532038 U CN 2010206532038U CN 201020653203 U CN201020653203 U CN 201020653203U CN 201892551 U CN201892551 U CN 201892551U
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- electromagnetic flowmeter
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- flow rate
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Abstract
A remote flow rate displaying device used for an electromagnetic flowmeter relates to the technical field of electromagnetic flowmeters, and solves the technical problem of remote display of flow rate measured value. The device comprises an LED (light emitting diode) nixie tube and an LED driver chip, and is characterized in that a singlechip, an RS485 communication chip and an RS485 communication connecting piece are also included in the device, wherein the singlechip is provided with a communication interface and a data interface, and the communication interface of the singlechip is connected onto the RS485 communication connecting piece through the RS485 communication chip; and the LED driver chip is provided with a drive signal output interface and a data interface, the drive signal output interface of the LED driver chip is connected with the LED nixie tube, and the data interface of the LED driver chip is connected with the data interface of the singlechip. The remote flow rate displaying device used for the electromagnetic flowmeter provided by the utility model can display the flow rate measured value in a position further away from a measuring point.
Description
Technical field
The utility model relates to the electromagnetic flowmeter technology, particularly relates to a kind of technology that is used for the remote flow display device of electromagnetic flowmeter.
Background technology
Electromagnetic flowmeter is a kind of instrument of measuring media volumetric flow rate, mainly is made up of Electromagnetic Flow conversion equipment and electromagnetic flow transducer.Wherein, electromagnetic flow transducer is used to detect rate-of flow, and detected rate-of flow is converted to induced electromotive force signal, the Electromagnetic Flow conversion equipment is used for providing to electromagnetic flow transducer the exciting current in generation work magnetic field, and receive the induced electromotive force signal of electromagnetic flow transducer, and with the induced electromotive force signal that receives get rid of disturb and amplify after be converted to standard electric signal export the display screen that is installed on the electromagnetic flowmeter converter shell to and show.Because the existing volume of electromagnetic flowmeter converter own is all less, therefore the display screen that is installed on the electromagnetic flowmeter converter shell is also less relatively, and the electric signal of measured value all passes to display screen by data line in the existing electromagnetic flowmeter, its transmission range is also very limited, the staff must go on the electromagnetic flowmeter limit just can see flow measurements, being not easy to the technician watches constantly, and the mounting points of some electromagnetic flowmeter is relatively dangerous, and the staff goes on the electromagnetic flowmeter limit himself safety of entail dangers to.
The utility model content
At the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind of remote flow display device that is used for electromagnetic flowmeter that can show the flow measurements of electromagnetic flowmeter in distance measurement point place far away.
In order to solve the problems of the technologies described above, a kind of remote flow display device that is used for electromagnetic flowmeter provided by the utility model, comprise LED charactron and LED chip for driving, it is characterized in that: also comprise single-chip microcomputer, RS485 communication chip and RS485 communication link fitting;
Described single-chip microcomputer is provided with communication interface and data-interface, and its communication interface is connected to RS485 communication link fitting through the RS485 communication chip;
Described LED chip for driving is provided with drive signal output interface and data-interface, and its drive signal output interface is connected to the LED charactron, and its data-interface connects the data-interface of single-chip microcomputer.
The remote flow display device that is used for electromagnetic flowmeter that the utility model provides, the electromagnetic flowmeter that connects measurement point by the RS485 communication mode, and the transmission range of RS485 communication mode will be much larger than the transmission range of traditional data line, therefore can show the flow measurements of electromagnetic flowmeter by this device in distance measurement point place far away, make the staff need not to go on the electromagnetic flowmeter limit and can see flow measurements.
Description of drawings
Fig. 1 is the structured flowchart of the remote flow display device that is used for electromagnetic flowmeter of the utility model embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
As shown in Figure 1, a kind of remote flow display device that is used for electromagnetic flowmeter that the utility model embodiment is provided, comprise LED charactron 1 and LED chip for driving 2, it is characterized in that: also comprise single-chip microcomputer 3, RS485 communication chip 4 and RS485 communication link fitting 5;
Described single-chip microcomputer 3 is provided with communication interface and data-interface, and its communication interface is connected to RS485 communication link fitting 5 through RS485 communication chip 4;
Described LED chip for driving 2 is provided with drive signal output interface and data-interface, and its drive signal output interface is connected to LED charactron 1, and its data-interface connects the data-interface of single-chip microcomputer 3.
Among the utility model embodiment, described LED charactron is 10 an inches big LED charactron, the model of described LED chip for driving is LM8168B, and described single-chip microcomputer is that model is little process chip of MSP430F169, and the model of described RS485 communication chip is SP3485EN.
The utility model embodiment is applicable to the electromagnetic flowmeter that has the RS485 communication interface, utilizes the twin-core shielding line that the RS485 communication interface of electromagnetic flowmeter is connected to RS485 communication link fitting among the utility model embodiment during use.
The principle of work of the utility model embodiment is as follows:
The flow measurements of electromagnetic flowmeter passes to the RS485 communication chip by the twin-core shielding line, the RS485 communication chip transfers to single-chip microcomputer with the flow measurements that receives again, and single-chip microcomputer shows by LED chip for driving driving LED charactron the flow measurements decoding back that receives.
Claims (1)
1. a remote flow display device that is used for electromagnetic flowmeter comprises LED charactron and LED chip for driving, it is characterized in that: also comprise single-chip microcomputer, RS485 communication chip and RS485 communication link fitting;
Described single-chip microcomputer is provided with communication interface and data-interface, and its communication interface is connected to RS485 communication link fitting through the RS485 communication chip;
Described LED chip for driving is provided with drive signal output interface and data-interface, and its drive signal output interface is connected to the LED charactron, and its data-interface connects the data-interface of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206532038U CN201892551U (en) | 2010-12-10 | 2010-12-10 | Remote flow rate displaying device used for electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206532038U CN201892551U (en) | 2010-12-10 | 2010-12-10 | Remote flow rate displaying device used for electromagnetic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892551U true CN201892551U (en) | 2011-07-06 |
Family
ID=44222025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206532038U Expired - Fee Related CN201892551U (en) | 2010-12-10 | 2010-12-10 | Remote flow rate displaying device used for electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892551U (en) |
-
2010
- 2010-12-10 CN CN2010206532038U patent/CN201892551U/en not_active Expired - Fee Related
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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: 20110706 Termination date: 20131210 |