CN201638078U - Multi-channel analog signal isolating and collecting device - Google Patents
Multi-channel analog signal isolating and collecting device Download PDFInfo
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- CN201638078U CN201638078U CN2010201549691U CN201020154969U CN201638078U CN 201638078 U CN201638078 U CN 201638078U CN 2010201549691 U CN2010201549691 U CN 2010201549691U CN 201020154969 U CN201020154969 U CN 201020154969U CN 201638078 U CN201638078 U CN 201638078U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model discloses a multi-channel analog signal isolating and collecting device. A signal isolating and selecting module is sequentially connected with a signal conditioning module, a microprocessor module and a display module; the microprocessor module is connected with the signal isolating and selecting module; and a power module is provided with a power supply. Compared with the prior art, the utility model has the advantages of low cost, simple circuit, realization of isolating among channels and among the channels and a collecting device by using a single power supply, and no common mode interference.
Description
Technical field
The utility model relates to data collector, relates in particular to a kind of multi-channel analog signal and isolates harvester.
Background technology
The Data Source type that industrial occasions need be gathered is various, and various sensors are arranged, and all kinds of transmitters, secondary instrument or the like, each Data Source may self-organizing systems, may belong to same system but different datums is arranged.When Usage data collection equipment is gathered these signals, between collecting device and the industry spot, all need mutual isolation between each passage of industry spot.
In present commercial Application, the realization of isolation mainly contains following two kinds of methods: the one, adopt differential amplifier, and not only cost is high and have a common mode interference problem for this; The 2nd, adopt a plurality of insulating power supplies, bulky, cost is high.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of multi-channel analog signal to isolate harvester.
The Signal Spacing that multi-channel analog signal is isolated in the harvester selects module to link to each other successively with signal condition module, microprocessor module, display module, and microprocessor module selects module to link to each other with Signal Spacing, and power module provides power supply; Wherein,
Microprocessor module is used to transmit control signal, shows signal, communicates by letter etc. with host computer;
Signal Spacing is selected module, is used to receive the control signal and the on-site signal of described microprocessor module, and on-site signal is carried out channel selecting and isolates back output;
The signal condition module is used to receive described Signal Spacing and selects the physical signalling of module output to carry out exporting after impedance matching, filtering, the amplitude modulation;
The built-in analog-to-digital conversion module of microprocessor module be used for the physical signalling of received signal conditioning module output and measure after be converted to digital signal;
The size that display module is used to receive the shows signal of microprocessor and shows on-site signal;
Power module is used for multi-channel analog signal is isolated the harvester power supply.
Wherein Signal Spacing selects the inside annexation of module to be: 1 of relay U1,3 pin link to each other with an end of resistance R 1,2 of relay U1,4 pin link to each other with 14 pin of code translator U9,8 of relay U1,6 pin and on-the-spot input channel one signal (AI1A, AI1B) link to each other, 1 of relay U2,3 pin link to each other with an end of resistance R 2,2 of relay U2,4 pin link to each other with 13 pin of code translator U9,8 of relay U2,6 pin and on-the-spot input channel binary signal (AI2A, AI2B) link to each other, 1 of relay U3,3 pin link to each other with an end of resistance R 3,2 of relay U3,4 pin link to each other with 12 pin of code translator U9,8 of relay U3,6 pin and on-the-spot input channel three signal (AI3A, AI3B) link to each other, 1 of relay U4,3 pin link to each other with an end of resistance R 4,2 of relay U4,4 pin link to each other with 11 pin of code translator U9,8 of relay U4,6 pin and on-the-spot input channel four signal (AI4A, AI4B) link to each other, 1 of relay U5,3 pin link to each other with an end of resistance R 5,2 of relay U5,4 pin link to each other with 10 pin of code translator U9,8 of relay U5,6 pin and on-the-spot input channel five signal (AI5A, AI5B) link to each other, 1 of relay U6,3 pin link to each other with an end of resistance R 6,2 of relay U6,4 pin link to each other with 9 pin of code translator U9,8 of relay U6,6 pin and on-the-spot input channel six signal (AI6A, AI6B) link to each other, 1 of relay U7,3 pin link to each other with an end of resistance R 7,2 of relay U7,4 pin link to each other with 15 pin of code translator U9,5 pin of relay U7 link to each other by resistance R 9 with 7 pin, 1 of relay U8,3 pin link to each other with an end of resistance R 8,2 of relay U8,4 pin link to each other with 7 pin of code translator U9,5 pin of relay U8 link to each other with simulation ground, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, the other end of resistance R 8 links to each other with the feeder ear DVCC that multi-channel analog signal is isolated harvester, 5 pin of relay U1,5 pin of relay U2,5 pin of relay U3,5 pin of relay U4,5 pin of relay U5,5 pin of relay U6,6 pin of relay U7,6 pin of relay U8 link to each other with an end of capacitor C 1,7 pin of relay U1,7 pin of relay U2,7 pin of relay U3,7 pin of relay U4,7 pin of relay U5,7 pin of relay U6,8 pin of relay U7,8 pin of relay U8 link to each other with the other end of capacitor C 1,1 of code translator U9,2,3,4 pin respectively with 14 of microprocessor module U10,15,16,17 pin link to each other, 5 pin of code translator U9 link to each other with the feeder ear signal ground that 8 pin and multi-channel analog signal are isolated harvester, and 6 pin of code translator U9 link to each other with the feeder ear DVCC that 16 pin and multi-channel analog signal are isolated harvester.
The beneficial effect that the utility model compared with prior art has: cost is low, and circuit is simple, use single power supply promptly realized between the passage and passage and harvester between isolating problem, and do not have the common mode interference problem.
Description of drawings
Fig. 1 is that multi-channel analog signal is isolated the harvester structured flowchart;
Fig. 2 is that Signal Spacing is selected module principle figure;
Fig. 3 is the microprocessor module schematic diagram;
Fig. 4 is that multi-channel analog signal is isolated harvester implementing procedure figure.
Embodiment
As shown in the figure, the Signal Spacing that multi-channel analog signal is isolated in the harvester selects module to link to each other successively with signal condition module, microprocessor module, display module, and microprocessor module selects module to link to each other with Signal Spacing, and power module provides power supply; Wherein,
Microprocessor module is used to transmit control signal, shows signal, communicates by letter etc. with host computer.
Signal Spacing is selected module, is used to receive the control signal and the on-site signal of described microprocessor module, and on-site signal is carried out channel selecting and isolates back output.
Signal Spacing selects the inside annexation of module to be: 1 of relay U1,3 pin link to each other with an end of resistance R 1,2 of relay U1,4 pin link to each other with 14 pin of code translator U9,8 of relay U1,6 pin and on-the-spot input channel one signal (AI1A, AI1B) link to each other, 1 of relay U2,3 pin link to each other with an end of resistance R 2,2 of relay U2,4 pin link to each other with 13 pin of code translator U9,8 of relay U2,6 pin and on-the-spot input channel binary signal (AI2A, AI2B) link to each other, 1 of relay U3,3 pin link to each other with an end of resistance R 3,2 of relay U3,4 pin link to each other with 12 pin of code translator U9,8 of relay U3,6 pin and on-the-spot input channel three signal (AI3A, AI3B) link to each other, 1 of relay U4,3 pin link to each other with an end of resistance R 4,2 of relay U4,4 pin link to each other with 11 pin of code translator U9,8 of relay U4,6 pin and on-the-spot input channel four signal (AI4A, AI4B) link to each other, 1 of relay U5,3 pin link to each other with an end of resistance R 5,2 of relay U5,4 pin link to each other with 10 pin of code translator U9,8 of relay U5,6 pin and on-the-spot input channel five signal (AI5A, AI5B) link to each other, 1 of relay U6,3 pin link to each other with an end of resistance R 6,2 of relay U6,4 pin link to each other with 9 pin of code translator U9,8 of relay U6,6 pin and on-the-spot input channel six signal (AI6A, AI6B) link to each other, 1 of relay U7,3 pin link to each other with an end of resistance R 7,2 of relay U7,4 pin link to each other with 15 pin of code translator U9,5 pin of relay U7 link to each other by resistance R 9 with 7 pin, 1 of relay U8,3 pin link to each other with an end of resistance R 8,2 of relay U8,4 pin link to each other with 7 pin of code translator U9,5 pin of relay U8 link to each other with simulation ground, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, the other end of resistance R 8 links to each other with the feeder ear DVCC that multi-channel analog signal is isolated harvester, 5 pin of relay U1,5 pin of relay U2,5 pin of relay U3,5 pin of relay U4,5 pin of relay U5,5 pin of relay U6,6 pin of relay U7,6 pin of relay U8 link to each other with an end of capacitor C 1,7 pin of relay U1,7 pin of relay U2,7 pin of relay U3,7 pin of relay U4,7 pin of relay U5,7 pin of relay U6,8 pin of relay U7,8 pin of relay U8 link to each other with the other end of capacitor C 1,1 of code translator U9,2,3,4 pin respectively with 14 of microprocessor module U10,15,16,17 pin link to each other, 5 pin of code translator U9 link to each other with the feeder ear signal ground that 8 pin and multi-channel analog signal are isolated harvester, and 6 pin of code translator U9 link to each other with the feeder ear DVCC that 16 pin and multi-channel analog signal are isolated harvester.
The PhotoMOS relay is used for channel selecting and isolation in the Signal Spacing selection module, and capacitor C 1 is used to keep sampled voltage, and resistance R 9 is used for capacitor C 1 discharge, and code translator U9 is used for channel selecting control.In the present embodiment, the AQW214 that the PhotoMOS relay adopts PANASONIC (Panasonic) to produce; Code translator adopts 74HC138, this device polyelectron goods producer that can comform to locate to obtain, for example Texas Instruments (Texas Instruments); R9 adopts the resistance of 3.3 Ω/1W, and other resistance also can be implemented certainly; Capacitor C 1 adopts polystyrene electric capacity, and capacity is 1uF (microfarad), and its polyelectron goods producer that can comform locates to obtain.
The signal condition module is used to receive described Signal Spacing and selects the physical signalling of module output to carry out exporting after impedance matching, filtering, the amplitude modulation.This partial circuit can be comformed and be obtained on polyelectron circuit textbook or the reference book.Signal input analog-to-digital conversion module through nursing one's health is used to produce corresponding digital signal.
The built-in analog-to-digital conversion module of microprocessor module be used for the physical signalling of received signal conditioning module output and measure after be converted to digital signal.In the present embodiment, microprocessor adopts the MSP430F247 of Texas Instruments (Texas Instruments), analog-to-digital conversion module adopts the built-in analog-to-digital conversion module of microcontroller (MSP430F247), this analog-to-digital conversion module has 12 resolution, the voltage at C1 two ends when the digital signal ratio ground of output is electrically connected with the signal condition module corresponding to capacitor C 1.Certainly, analog-to-digital conversion module also can use other individual devices, as the ADS8519 of Texas Instruments (TexasInstruments).
The size that display module is used to receive the shows signal of microprocessor and shows on-site signal.
Power module is used for multi-channel analog signal is isolated the harvester power supply.
During work, by the operation of microprocessor embedded software, microprocessor need to select measured signalling channel to measure.Generally, software travels through the input signal of each passage in order.Illustrate to measure passage one signal (AI1A, AI1B) below.
At first, it all is low level that microprocessor U10 controls CS1, CS2, CS3, CSAI by embedded software, at this moment the Y0 of code translator U9 (15 pin) is by gating, be low level, other output pins are high level, so 1 and 2 pin conductings of relay U7,3 pin and 4 pin conductings, so 5 pin of relay U7 and 6 pin short circuits, 7 pin and 8 pin short circuits, at this moment capacitor C 1 only links to each other with resistance R 9 and by resistance R 9 discharges, goes up the influence of remaining electric energy to input signal to avoid C1, and the time of connection can be calculated and be got by the appearance value of C1 and the resistance of R1.After discharge is finished, microprocessor U10 controls code translator U9 relay gate U1 equally, then 5 pin of relay U1 and 6 pin short circuits, 7 pin and 8 pin short circuits, at this moment capacitor C 1 only is connected with the signal of field channels one, and the time of connection can be calculated and be got by the appearance value of C1 and the equivalent resistance of input signal.After the C1 charging finishes, microprocessor U10 controls code translator U9 relay gate U8 equally, so 5 pin of relay U8 and 6 pin short circuits, 7 pin and 8 pin short circuits, at this moment capacitor C 1 only links to each other with the signal condition module, the time that connects can be consulted the analog-to-digital conversion module databook and get, thereby can convert digital signal to and can obtain the signal magnitude of field channels one after microprocessor U10 processing by the built-in analog-to-digital conversion module of microprocessor U10.
Claims (2)
1. a multi-channel analog signal is isolated harvester, it is characterized in that Signal Spacing selection module links to each other successively with signal condition module, microprocessor module, display module, and microprocessor module selects module to link to each other with Signal Spacing, and power module provides power supply; Wherein,
Microprocessor module is used to transmit control signal, shows signal, communicates by letter with host computer;
Signal Spacing is selected module, is used to receive the control signal and the on-site signal of described microprocessor module, and on-site signal is carried out channel selecting and isolates back output;
The signal condition module is used to receive described Signal Spacing and selects the physical signalling of module output to carry out exporting after impedance matching, filtering, the amplitude modulation;
The built-in analog-to-digital conversion module of microprocessor module be used for the physical signalling of received signal conditioning module output and measure after be converted to digital signal;
The size that display module is used to receive the shows signal of microprocessor and shows on-site signal;
Power module is used for multi-channel analog signal is isolated the harvester power supply.
2. a kind of multi-channel analog signal according to claim 1 is isolated harvester, it is characterized in that described Signal Spacing selection inside modules annexation is: 1 of relay U1,3 pin link to each other with an end of resistance R 1,2 of relay U1,4 pin link to each other with 14 pin of code translator U9,8 of relay U1,6 pin and on-the-spot input channel one signal (AI1A, AI1B) link to each other, 1 of relay U2,3 pin link to each other with an end of resistance R 2,2 of relay U2,4 pin link to each other with 13 pin of code translator U9,8 of relay U2,6 pin and on-the-spot input channel binary signal (AI2A, AI2B) link to each other, 1 of relay U3,3 pin link to each other with an end of resistance R 3,2 of relay U3,4 pin link to each other with 12 pin of code translator U9,8 of relay U3,6 pin and on-the-spot input channel three signal (AI3A, AI3B) link to each other, 1 of relay U4,3 pin link to each other with an end of resistance R 4,2 of relay U4,4 pin link to each other with 11 pin of code translator U9,8 of relay U4,6 pin and on-the-spot input channel four signal (AI4A, AI4B) link to each other, 1 of relay U5,3 pin link to each other with an end of resistance R 5,2 of relay U5,4 pin link to each other with 10 pin of code translator U9,8 of relay U5,6 pin and on-the-spot input channel five signal (AI5A, AI5B) link to each other, 1 of relay U6,3 pin link to each other with an end of resistance R 6,2 of relay U6,4 pin link to each other with 9 pin of code translator U9,8 of relay U6,6 pin and on-the-spot input channel six signal (AI6A, AI6B) link to each other, 1 of relay U7,3 pin link to each other with an end of resistance R 7,2 of relay U7,4 pin link to each other with 15 pin of code translator U9,5 pin of relay U7 link to each other by resistance R 9 with 7 pin, 1 of relay U8,3 pin link to each other with an end of resistance R 8,2 of relay U8,4 pin link to each other with 7 pin of code translator U9,5 pin of relay U8 link to each other with simulation ground, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7, the other end of resistance R 8 links to each other with the feeder ear DVCC that multi-channel analog signal is isolated harvester, 5 pin of relay U1,5 pin of relay U2,5 pin of relay U3,5 pin of relay U4,5 pin of relay U5,5 pin of relay U6,6 pin of relay U7,6 pin of relay U8 link to each other with an end of capacitor C 1,7 pin of relay U1,7 pin of relay U2,7 pin of relay U3,7 pin of relay U4,7 pin of relay U5,7 pin of relay U6,8 pin of relay U7,8 pin of relay U8 link to each other with the other end of capacitor C 1,1 of code translator U9,2,3,4 pin respectively with 14 of microprocessor module U10,15,16,17 pin link to each other, 5 pin of code translator U9 link to each other with the feeder ear signal ground that 8 pin and multi-channel analog signal are isolated harvester, and 6 pin of code translator U9 link to each other with the feeder ear DVCC that 16 pin and multi-channel analog signal are isolated harvester.
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| CN2010201549691U CN201638078U (en) | 2010-04-09 | 2010-04-09 | Multi-channel analog signal isolating and collecting device |
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| CN2010201549691U CN201638078U (en) | 2010-04-09 | 2010-04-09 | Multi-channel analog signal isolating and collecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269981A (en) * | 2011-03-14 | 2011-12-07 | 南大傲拓科技江苏有限公司 | Analogue quantity acquiring method and device in industrial control |
| CN102288833A (en) * | 2011-08-11 | 2011-12-21 | 北京电子工程总体研究所 | Priming system automatic detection device |
| CN108681269A (en) * | 2018-04-09 | 2018-10-19 | 湖北三江航天万峰科技发展有限公司 | A kind of data collecting system of multichannel isolation |
-
2010
- 2010-04-09 CN CN2010201549691U patent/CN201638078U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269981A (en) * | 2011-03-14 | 2011-12-07 | 南大傲拓科技江苏有限公司 | Analogue quantity acquiring method and device in industrial control |
| CN102288833A (en) * | 2011-08-11 | 2011-12-21 | 北京电子工程总体研究所 | Priming system automatic detection device |
| CN108681269A (en) * | 2018-04-09 | 2018-10-19 | 湖北三江航天万峰科技发展有限公司 | A kind of data collecting system of multichannel isolation |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU SECK INTELLIGENT TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANKE ELECTRONIC TECH. DEV. CO., LTD., HANGZHOU |
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| CP01 | Change in the name or title of a patent holder |
Address after: 6 floor, D, 391 energy saving Science Park, No. 310012 Wen two road, Zhejiang, Hangzhou, China Patentee after: HANGZHOU SHANKE INTELLIGENT TECHNOLOGY CO., LTD. Address before: 6 floor, D, 391 energy saving Science Park, No. 310012 Wen two road, Zhejiang, Hangzhou, China Patentee before: Hangzhou Seck Electronic Technology Development Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |