CN103514731A - Data communication method between on-line analysis instrument and pre-amplifier thereof - Google Patents
Data communication method between on-line analysis instrument and pre-amplifier thereof Download PDFInfo
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- CN103514731A CN103514731A CN201210219304.8A CN201210219304A CN103514731A CN 103514731 A CN103514731 A CN 103514731A CN 201210219304 A CN201210219304 A CN 201210219304A CN 103514731 A CN103514731 A CN 103514731A
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- amplifier
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- analysis instrument
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- analytical instrument
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Abstract
The invention belongs to the field of technical application of singlechips and relates to a data communication method between an online analysis instrument and a pre-amplifier thereof. The method is generally applied to data communication between an analysis instrument main body and a pre-amplifier thereof, and is mainly characterized in that multi-way detection signals are transmitted between the pre-amplifier and the analysis instrument main body by adopting a serial communication method, and the transmitted detection signals are initial data which are not processed. The multi-way detection data of the pre-amplifier are transmitted to the analysis instrument in a serial data form according to a specified sequence by utilizing the singlechip, and the problems that the multi-way detection data are required to be respectively transmitted in analog transmission and an analog signal is easily interfered are solved.
Description
Technical field
Present technique belongs to microchip technology field.Be specifically related to a kind of method that is applied to online analytical instrument front amplifier data communication.Conventionally be used in the data communication between analytical instrument main body and prime amplifier.
Background technology
In analytical instrument, preposition amplifier section often with apparatus subject apart from each other, therefore having multichannel to detect data need to transmit between prime amplifier and analytical instrument main body.Traditional analogue technique is that each circuit-switched data is zoomed into respectively to standard signal, then transmits by many lines.It is vulnerable to disturb very much.
Summary of the invention
The object of the invention is to propose a kind of transmission effective, the method for data communication between the online analytical instrument that antijamming capability is strong and its prime amplifier.
The present invention is achieved like this: be mainly between prime amplifier and analytical instrument main body, to adopt the method for serial communication to carry out the transmission of multichannel detection signal, the detection signal transmitting is not for carrying out the primary data of data processing.
Be to use singlechip technology that multichannel is detected to data to convert digital signal to after sampling specifically, and send analytical instrument main body to the form of serial data order in accordance with regulations.
Usually, in the present invention, a single-chip microcomputer need to be set in prime amplifier, complete sampling and the transmission of each road detection signal, this single-chip microcomputer is sampling and the transmission of settling signal system only, and do not carry out any data processing, and can guarantee that so the resulting data of analytical instrument main body can reflect the situation of measured signal really, all data processing work all transfer to main body instrument to complete.The mode of the transmission sampling asynchronous communication of data, only carries out prime amplifier to the one-way transmission of analytical instrument main body, and therefore whole data translator unit needs only a pair of line and just can realize.The method that adopts photoelectric coupling between prime amplifier and analytical instrument main body, has further improved antijamming capability.
Accompanying drawing explanation
Accompanying drawing 1 is the block scheme of serial data communication between prime amplifier and analytical instrument main body in the invention process method.
Accompanying drawing 2 is in the invention process method, to seal in and go here and there out the schematic diagram of circuit.
Accompanying drawing 3 is sequential charts of serial data communication in the invention process method.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the inventive method is described in detail.
Embodiment: use singlechip technology that multichannel is detected to data and convert digital signal to after sampling, and send analytical instrument main body to the form of serial data order in accordance with regulations.
As shown in Figure 1, wherein, singlechip CPU 1 completes data sampling and data send, and singlechip CPU 2 completes data receiver and data processing.The data that transmit are by sealing in and going here and there out circuit and be connected.
Accompanying drawing 2 seals in and goes here and there out the schematic diagram of circuit for embodiment of the present invention method, and VC1 and VC2 are two groups of separate power supplys.
Accompanying drawing 3 is to be the sequential chart of serial data communication in the invention process method.Sealing in and going here and there out the data n transmitting in circuit, transformat according to accompanying drawing 3 transmits, that is: each data is comprised of several bytes, each byte by 8 data bit, starting bit and position of rest totally 10 form, according to low level formerly high-order after order transmit successively.
Embodiment of the present invention method is applied in ultrasound wave sulfuric acid concentration analyser, while having realized ultrasonic acoustic, the one-way transmission of parameter between prime amplifier and analytical instrument main body such as number of echoes and tested acid temperature, respond well.
Claims (3)
1. the method for an online analytical instrument and its front amplifier data communication, it is characterized in that adopting the method for serial communication to carry out the transmission of multichannel detection signal between prime amplifier and analytical instrument main body, the detection signal transmitting is not for carrying out the primary data of data processing.
2. communication method as claimed in claim 1, is characterized in that arranging a single-chip microcomputer in prime amplifier.
3. communication method as claimed in claim 1, is characterized in that sending and receiving between prime amplifier and analytical instrument main body adopts the method for photoelectric coupling, to improve antijamming capability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219304.8A CN103514731A (en) | 2012-06-29 | 2012-06-29 | Data communication method between on-line analysis instrument and pre-amplifier thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219304.8A CN103514731A (en) | 2012-06-29 | 2012-06-29 | Data communication method between on-line analysis instrument and pre-amplifier thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103514731A true CN103514731A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219304.8A Pending CN103514731A (en) | 2012-06-29 | 2012-06-29 | Data communication method between on-line analysis instrument and pre-amplifier thereof |
Country Status (1)
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| CN (1) | CN103514731A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070263A (en) * | 1992-07-22 | 1993-03-24 | 浙江大学 | Multi-channel heat exciting test and control instrument using single chip processor |
| CN1649332A (en) * | 2004-12-28 | 2005-08-03 | 南化集团研究院 | Method for front amplifier data communication used on-line analyzing instrument |
| KR100813663B1 (en) * | 2007-12-28 | 2008-03-14 | 한빛이디에스(주) | Power quality data acquisition system |
| CN102415053A (en) * | 2009-04-22 | 2012-04-11 | 韩国标准科学研究院 | Data acquisition system for multi-channel signals |
-
2012
- 2012-06-29 CN CN201210219304.8A patent/CN103514731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070263A (en) * | 1992-07-22 | 1993-03-24 | 浙江大学 | Multi-channel heat exciting test and control instrument using single chip processor |
| CN1649332A (en) * | 2004-12-28 | 2005-08-03 | 南化集团研究院 | Method for front amplifier data communication used on-line analyzing instrument |
| KR100813663B1 (en) * | 2007-12-28 | 2008-03-14 | 한빛이디에스(주) | Power quality data acquisition system |
| CN102415053A (en) * | 2009-04-22 | 2012-04-11 | 韩国标准科学研究院 | Data acquisition system for multi-channel signals |
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| PB01 | Publication | ||
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Application publication date: 20140115 |