CN109087498A - A kind of number galvanic current, voltage transmission agreement - Google Patents
A kind of number galvanic current, voltage transmission agreement Download PDFInfo
- Publication number
- CN109087498A CN109087498A CN201810907783.XA CN201810907783A CN109087498A CN 109087498 A CN109087498 A CN 109087498A CN 201810907783 A CN201810907783 A CN 201810907783A CN 109087498 A CN109087498 A CN 109087498A
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- data
- data word
- synchronization character
- transmission agreement
- signal
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention discloses a kind of digital galvanic currents, voltage transmission agreement, signal is transmitted between communication serial port using data frame, it is characterized by: the data frame includes synchronization character and data word, the synchronization character and data word alternately transmit, the data word first is highest order, last position is lowest order, synchronization character last 1 is low level L, remaining position is high position H.By synchronization character and data word, alternately transmission alternately sends data frame to the present invention, and transport protocol sends voltage and current signal by the way of gap, acceleration signal, can simplify program, improve data transfer efficiency, improves the anti-interference ability in transmission process.
Description
Technical field
The present invention relates to transport protocol fields, are specifically related to a kind of digital galvanic current, voltage transmission agreement.
Background technique
Preceding voltage-current sensor available on the market is analog signal output, and signal processing flow is first to believe voltage
It number is converted into current signal output, then by analog sampling and signal transformation output A/D converter circuit, finally passes through FPGA number
Wordization processing, is input to control chip by data/address bus.Signal transformation at present, sampling, signal conditioning circuit, AD conversion process
It is all to be realized in control circuit, but the introducing of analog signal will increase the signal interference to control circuit.
The data-signal of voltage-current sensor is generally sent to control circuit using 485 buses at present, but it is general
Transport protocol efficiency of transmission it is bad, influence to control the data communication between chip and sensor module, lacking one kind can be high
The transmission of the Data Transport Protocol of efficiency transmission voltage or current value.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of high digital galvanic currents of efficiency of transmission, electricity
Press transport protocol.
The technical solution adopted by the present invention is that:
A kind of number galvanic current, voltage transmission agreement, transmit signal using data frame: the data between communication serial port
Frame includes synchronization character and data word, and the synchronization character and data word alternately transmit, and the data word first is highest order, finally
One is lowest order, and synchronization character last 1 is low level L, remaining position is high position H.
Further, the data word and synchronization character carry out state " H " and " L " with 75% and 25% duty ratio modulation
Position coding.
Further, the data frame is exported using 485 level.
Further, the data word widths are 12, and the synchronous word width is 13.
Further, the encoded radio of the data word is 0-4095.
Further, the every digital quantity 1 of the encoded radio represents 0.09768V, with the voltage data for corresponding to 0~400V
Signal.
Further, the every digital quantity 1 of the encoded radio represents 0.03663A, with the current data for corresponding to 0~150A
Signal.
Beneficial effects of the present invention:
By synchronization character and data word, alternately transmission alternately sends data frame to the present invention, using gap, acceleration signal
Mode transport protocol sends voltage and current signal, can simplify program, improve data transfer efficiency, improves anti-in transmission process
Interference performance.
Detailed description of the invention
A specific embodiment of the invention is described further with reference to the accompanying drawing；
Fig. 1 is the schematic diagram that transmission protocol data word of the present invention and synchronization character are alternately sent；
Fig. 2 is the duty ratio schematic diagram of state " H " and " L " in transport protocol of the present invention.
Specific embodiment
Be as shown in Figure 1 of the invention a kind of digital galvanic current, voltage transmission agreement, using data frame communication serial port it
Between transmit signal, data frame includes synchronization character and data word, and synchronization character and data word alternately transmit, and data word widths are 12,
Data word first is highest order, last position is lowest order；Synchronous word width is 13, and synchronization character last 1 is low level L,
Remaining position is high position H.
As shown in Fig. 2, data word and synchronization character carry out position to state " H " and " L " with 75% and 25% duty ratio modulation
Coding.
Preferably, data frame is exported using 485 level in the present embodiment.Every paths Transmission bit rate is 1Mb/s, each logical
Road output is RS485 level, and signal is formed using difference form.
Wherein, when sending voltage data, the encoded radio of data word is 0-4095, and the every digital quantity 1 of encoded radio represents
0.09768V, with the voltage signal for corresponding to 0~400V, as shown in the table
When sending current data, the every digital quantity 1 of encoded radio represents 0.03663A, with the electric current for corresponding to 0~150A
Data-signal, as shown in the table
By synchronization character and data word, alternately transmission alternately sends data frame to the present invention, using gap, acceleration signal
Mode transport protocol sends voltage and current signal, can simplify program, improve data transfer efficiency, improves anti-in transmission process
Interference performance.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to above embodiment, as long as with
Essentially identical means realize that the technical solution of the object of the invention belongs within protection scope of the present invention.
Claims (7)
1. a kind of number galvanic current, voltage transmission agreement, transmit signal using data frame, feature exists between communication serial port
In: the data frame includes synchronization character and data word, and the synchronization character and data word alternately transmit, and the data word first is
Highest order, last position are lowest order, and synchronization character last 1 is low level L, remaining position is high position H.
2. a kind of Digital Transmission agreement according to claim 1, it is characterised in that: the data word and synchronization character with
75% and 25% duty ratio modulation carries out position coding to state " H " and " L ".
3. a kind of Digital Transmission agreement according to claim 1, it is characterised in that: the data frame uses 485 level
Output.
4. a kind of Digital Transmission agreement according to claim 1, it is characterised in that: the data word widths are 12,
The synchronous word width is 13.
5. a kind of Digital Transmission agreement according to claim 1, it is characterised in that: the encoded radio of the data word is 0-
4095。
6. a kind of Digital Transmission agreement according to claim 5, it is characterised in that: encoded radio every 1 generation of digital quantity
Table 0.09768V, with the voltage signal for corresponding to 0~400V.
7. a kind of Digital Transmission agreement according to claim 5, it is characterised in that: encoded radio every 1 generation of digital quantity
Table 0.03663A, with the current data signal for corresponding to 0~150A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810907783.XA CN109087498A (en) | 2018-08-10 | 2018-08-10 | A kind of number galvanic current, voltage transmission agreement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810907783.XA CN109087498A (en) | 2018-08-10 | 2018-08-10 | A kind of number galvanic current, voltage transmission agreement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109087498A true CN109087498A (en) | 2018-12-25 |
Family
ID=64834533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810907783.XA Pending CN109087498A (en) | 2018-08-10 | 2018-08-10 | A kind of number galvanic current, voltage transmission agreement |
Country Status (1)
| Country | Link |
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| CN (1) | CN109087498A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751775A (en) * | 1994-04-29 | 1998-05-12 | Sgs-Thomson Microelectronics S.A. | Transmission circuit of a line encoded signal on a telephone line |
| CN103516482A (en) * | 2012-06-25 | 2014-01-15 | 庄臣及庄臣视力保护公司 | Wireless communication protocol for low power receivers |
| CN104713585A (en) * | 2015-04-08 | 2015-06-17 | 南车株洲电力机车有限公司 | Suspension sensor diagnosis device and method |
-
2018
- 2018-08-10 CN CN201810907783.XA patent/CN109087498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751775A (en) * | 1994-04-29 | 1998-05-12 | Sgs-Thomson Microelectronics S.A. | Transmission circuit of a line encoded signal on a telephone line |
| CN103516482A (en) * | 2012-06-25 | 2014-01-15 | 庄臣及庄臣视力保护公司 | Wireless communication protocol for low power receivers |
| CN104713585A (en) * | 2015-04-08 | 2015-06-17 | 南车株洲电力机车有限公司 | Suspension sensor diagnosis device and method |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200715 Address after: Room 103-104, building B3, Changsha E center, No.18 Xiangtai Road, Liuyang economic and Technological Development Zone, Changsha City, Hunan Province Applicant after: HUNAN LINGXIANG MAGNETIC LEVITATION TECHNOLOGY Co.,Ltd. Address before: 410005 Hunan province Changsha Kaifu District, the Pearl River Fisheries Road Pu Shu 20 building 103 room Applicant before: Xiao Li |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |