CN203179278U - Sensor signal acquisition module based on optical fiber communication technology - Google Patents
Sensor signal acquisition module based on optical fiber communication technology Download PDFInfo
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- CN203179278U CN203179278U CN 201320207305 CN201320207305U CN203179278U CN 203179278 U CN203179278 U CN 203179278U CN 201320207305 CN201320207305 CN 201320207305 CN 201320207305 U CN201320207305 U CN 201320207305U CN 203179278 U CN203179278 U CN 203179278U
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Abstract
The utility model provides a sensor signal acquisition module based on optical fiber communication technology. The sensor signal acquisition module comprises a microcontroller module, an analog signal modulating module and an optical fiber communication module which are connected in sequence, wherein an analog quantity processing module comprises a sampling resistance network and a signal amplifying circuit connected with the sampling resistance network; analog quantity electric signals output by a sensor are accessed in the sampling resistance network through a sensor analog signal interface so as to convert types of the electric signals, and then signal amplification and impedance conversion are performed through the signal amplifying circuit; the analog signal modulating module is used for sampling and calculating signals output by the signal amplifying circuit; the optical fiber communication module comprises an optical fiber driving amplifier and an optical fiber interface; and the optical fiber driving amplifier is used for driving and amplifying electric signals output by the microcontroller module, converting into optical signals and transmitting to a long-distance control system through the optical fiber interface. The sensor signal acquisition module has the characteristics of being simple in structure, long in transmission distance, high in antijamming capacity, low in cost, and the like.
Description
Technical field
The utility model relates to the collecting sensor signal module, specifically is a kind of collecting sensor signal module based on optical fiber communication technology.
Background technology
The collecting sensor signal module has been widely used in every field, and progressively becomes one of system core parts, and its performance and reliability height have directly determined performance and the stability of total system.In traditional collecting sensor signal modular design and in using, strengthen the processing such as software and hardware filtering of collecting sensor signal module, the electric signal of output adopts multiple shield and anti-interference process, all be the means of comparatively using always, yet, big (the complex structure of these method cost prices, cost increases), the electric signal transmission range of output is not far, be subjected to problems such as external interference easily and still exist, simultaneously, electrical equipment and device intellectuality, " optical fiber " is changed has become a kind of development trend, therefore, invent a kind of long transmission distance, antijamming capability is strong, collecting sensor signal the module with low cost and development trend that adaptation is new is extremely urgent.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of collecting sensor signal module based on optical fiber communication technology, and its long transmission distance, antijamming capability are strong, with low cost.
A kind of collecting sensor signal module based on optical fiber communication technology, comprise the micro controller module, analog signal conditioner module, the optical-fibre communications module that connect successively, described analog quantity processing module comprises that the sampling resistor network reaches and the signal amplification circuit of sampling resistor network connection, the analog quantity electric signal of sensor output inserts the sampling resistor network with the switching electrical signals type by the Sensor Analog Relay System signaling interface, carries out signal by signal amplification circuit then and amplifies and the impedance conversion; Described analog signal conditioner module be used for to the signal of signal amplification circuit output sample, computing, described optical-fibre communications module comprises optical fiber driving amplifier and optical fiber interface, the optical fiber driving amplifier is used for the electric signal of micro controller module output is driven amplification, is converted to the control system that the optical signals optical fiber interface is transferred to a distant place.
Aforesaid collecting sensor signal module based on optical fiber communication technology, the sampling resistor network is connected in twos by eight identical accurate sampling resistors of resistance and is formed four bleeder circuits, and an end of four dividing potential drop branch roads is connected with the Sensor Analog Relay System signaling interface by the first coaxial toggle switch as the sampled voltage end; The node of four dividing potential drop branch roads is connected with the signal amplification circuit input end by the second coaxial toggle switch as minute pressure side, and the other end ground connection of four dividing potential drop branch roads is as earth terminal.
The utility model is compared with traditional sensor acquisition module, its topmost advantage is: the optical-fibre communications mode is adopted in the output of collecting sensor signal module, utilizes the optical signal transmission distance, the strong characteristics of anti-EMC interference performance, can well address the above problem, its cost is lower.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Among the figure: 1-micro controller module, 2-analog signal conditioner module, 3-optical-fibre communications module, 4-sampling resistor network, 5-signal amplification circuit, JP1-Sensor Analog Relay System signaling interface, the coaxial toggle switch of SW1-A-first, the coaxial toggle switch of SW1-B-second, R1, R2, R3, R4, R5, R6, R7, R8-accurate sampling resistor, R9-resistance, C1-filter capacitor, R10-resistance, R11-resistance, U1-operational amplifier, ADC-analog to digital converter, U2-optical fiber driving amplifier, JP2-optical fiber interface.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.
Please refer to Fig. 1, the utility model comprises micro controller module 1, analog signal conditioner module 2, the optical-fibre communications module 3 that connects successively based on the collecting sensor signal module of optical fiber communication technology, described analog signal conditioner module 2 comprises sampling resistor network 4, signal amplification circuit 5, sampling resistor network 4 is formed four bleeder circuits by eight accurate sampling resistors (R1, R2, R3, R4, R5, R6, R7, R8), and the resistance of eight accurate sampling resistors is all identical.Concrete, eight accurate sampling resistors are connected in twos and are formed four dividing potential drop branch roads (R1 connects with R2, R3 connects with R4, R5 connects with R6, R7 connects with R8), one end of four dividing potential drop branch roads is connected with the first coaxial toggle switch SW1-A as the sampled voltage end, the node of four dividing potential drop branch roads is connected with the second coaxial toggle switch SW1-B as minute pressure side, and the other end ground connection of four dividing potential drop branch roads is as earth terminal.
Sensor Analog Relay System signaling interface JP1 is by the sampled voltage end of four dividing potential drop branch roads of the first coaxial toggle switch SW1-A access, and the branch pressure side of four dividing potential drop branch roads is connected with the input end of signal amplification circuit 5 by the second coaxial toggle switch SW1-B.The analog signal output interface of sensor is connected with Sensor Analog Relay System signaling interface JP1 in the utility model, the analog quantity electric signal of sensor output inserts sampling resistor network 4 with the switching electrical signals type by Sensor Analog Relay System signaling interface JP1, carries out signal by signal amplification circuit 5 then and amplifies and the impedance conversion.Described signal amplification circuit 5 by operational amplifier U1, resistance R 9, filter capacitor C1, resistance R 10, resistance R 11, form.
The signal of signal amplification circuit 5 outputs enters analog signal conditioner module 2, sample, carry out computing by processor (CPU) by its analog to digital converter ADC that carries, handle back output by optical-fibre communications module 3 at last, described optical-fibre communications module 3 comprises optical fiber driving amplifier U2 and optical fiber interface JP2, optical fiber driving amplifier U2 is used for the electric signal of micro controller module 2 outputs is driven amplification, is converted to the control system that optical signals optical fiber interface JP2 is transferred to a distant place.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly belong to those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (2)
1. collecting sensor signal module based on optical fiber communication technology, it is characterized in that: comprise the micro controller module (1), analog signal conditioner module (2), the optical-fibre communications module (3) that connect successively, described analog quantity processing module comprises sampling resistor network (4) and the signal amplification circuit (5) that is connected with sampling resistor network (4), the analog quantity electric signal of sensor output inserts sampling resistor network (4) with the switching electrical signals type by Sensor Analog Relay System signaling interface (JP1), carries out signal by signal amplification circuit (5) then and amplifies and the impedance conversion; Described analog signal conditioner module (2) be used for to the signal of signal amplification circuit (5) output sample, computing, described optical-fibre communications module (3) comprises optical fiber driving amplifier (U2) and optical fiber interface (JP2), optical fiber driving amplifier (U2) is used for the electric signal of micro controller module (2) output is driven amplification, is converted to the control system that optical signals optical fiber interface (JP2) is transferred to a distant place.
2. the collecting sensor signal module based on optical fiber communication technology as claimed in claim 1, it is characterized in that: sampling resistor network (4) is connected in twos by eight identical accurate sampling resistors of resistance and is formed four bleeder circuits, and an end of four dividing potential drop branch roads is connected with Sensor Analog Relay System signaling interface (JP1) by the first coaxial toggle switch (SW1-A) as the sampled voltage end; The node of four dividing potential drop branch roads is connected with signal amplification circuit (5) input end by the second coaxial toggle switch (SW1-B) as minute pressure side, and the other end ground connection of four dividing potential drop branch roads is as earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207305 CN203179278U (en) | 2013-04-24 | 2013-04-24 | Sensor signal acquisition module based on optical fiber communication technology |
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| CN 201320207305 CN203179278U (en) | 2013-04-24 | 2013-04-24 | Sensor signal acquisition module based on optical fiber communication technology |
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| CN203179278U true CN203179278U (en) | 2013-09-04 |
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| CN 201320207305 Expired - Lifetime CN203179278U (en) | 2013-04-24 | 2013-04-24 | Sensor signal acquisition module based on optical fiber communication technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569700A (en) * | 2015-02-03 | 2015-04-29 | 上海观源信息科技有限公司 | Equipment power consumption acquiring device with various interfaces |
| CN105911468A (en) * | 2016-04-28 | 2016-08-31 | 北京中水科水电科技开发有限公司 | Uniform accessing apparatus for onsite test parameters for waterpower set |
-
2013
- 2013-04-24 CN CN 201320207305 patent/CN203179278U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569700A (en) * | 2015-02-03 | 2015-04-29 | 上海观源信息科技有限公司 | Equipment power consumption acquiring device with various interfaces |
| CN105911468A (en) * | 2016-04-28 | 2016-08-31 | 北京中水科水电科技开发有限公司 | Uniform accessing apparatus for onsite test parameters for waterpower set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230103 Address after: 430070 4th floor, Beigang Village Industrial Park, No. 36, Shucheng Road, Hongshan District, Wuhan City, Hubei Province Patentee after: Three Gorges Zhikong Technology Co.,Ltd. Address before: 430070 No. 36 Bookstore Road, Hongshan District, Hubei, Wuhan Patentee before: THREE GORGES NENGSHIDA ELECTRIC Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
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| CX01 | Expiry of patent term |