CN202757613U - Intelligent clinometer based on ProfiBus bus - Google Patents
Intelligent clinometer based on ProfiBus bus Download PDFInfo
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- CN202757613U CN202757613U CN 201220425914 CN201220425914U CN202757613U CN 202757613 U CN202757613 U CN 202757613U CN 201220425914 CN201220425914 CN 201220425914 CN 201220425914 U CN201220425914 U CN 201220425914U CN 202757613 U CN202757613 U CN 202757613U
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- profibus
- inclinator
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Abstract
The utility model discloses an intelligent climometer based on a Profibus bus. The intelligent climometer based on the Profibus bus comprises a tilt angel sensor, a filtering unit, a processor, a digital readout index table and a ProfiBus module. The filtering unit is used for filtering analog signals output by the tilt angel sensor. The processor is used for proceeding high-precision analog-to-digital conversion to the analog signals output by the tilt angel sensor, filtering digital signals in the processor and conducting angle conversion to the signals which is digitally processed, wherein the analog signal output by the tilt angel sensor is filtered. The digital readout index table is used for testing data which is needed to conduct linear compensation of the tilt angel sensor and calculating an appropriate linear calibration coefficient. The ProfiBus module is used for providing a ProfiBus field bus transmission mode and transmitting angle information tested by the clinometer to a receiving terminal in a ProfiBus filed bus mode. The intelligent climometer based on the Profibus bus has the advantaged of being capable of providing a roll posture angle and a pitch posture angle, overcoming inconvenience produced by the existing transport protocol through a field bus module transmission mode, providing node administration and maximizing advantages of a field industrial bus.
Description
Technical field
The utility model belongs to field of measuring technique, relates to a kind of intelligent inclinator, relates in particular to a kind of intelligent inclinator based on the ProfiBus bus.
Background technology
Digitalized clinometer is to measure object tilt variation and the time dependent instrument of pedal line in time, the angle signal of non electrical quantity is converted to digital signal or with the way of output of communications protocol mode,
Intelligence instrument is along with the maturation of singlechip technology at the beginning of the eighties grows up, and the world is monopolized by intelligence instrument in instrument market substantially now.Tracing it to its cause is exactly the needs of IT application in enterprises, and enterprise's one of them necessary condition when instrument selection will have the connected network communication interface exactly.Be data analog signal output simple procedure amount at first, instrumentation tap was the RS232 interface afterwards, and this interface can be realized point-to-point communication mode, but this mode can not realize network savvy.The RS485 that occurs has subsequently solved this problem, but the normal response modes such as RS485 have just been stipulated interface standard on electric and transmission mode etc., agreement has again the difference of producer to develop, and has compatible problem aspect large-scale network-estabilishing and industrial sensor topological network integration.
Existing Fieldbus Based Digitalized clinometer, fieldbus module are used for the data transmission of the fieldbus of sensor signal generally by external outside at sensor; They respectively independently.This uses under industrial environment and brings greater inconvenience.
For having the communications protocol based on the inclinator of acceleration of gravity principle, the reliability of topological network, the compatible requirement of not satisfied measurement now.Fieldbus module and inclinator are combined with innovating, reduce user's burden, the integrated level of increase system, compatibility, reliability in some application places, have obvious technical advantage and using value such as fields of measurement such as dam monitoring, the measurement of planenesss.
The utility model content
Technical problem to be solved in the utility model is: a kind of intelligent inclinator based on the ProfiBus bus is provided, utilize the mode of field bus communication module fieldindustrybus, solve the inconvenience that existing basic communications protocol transmission brings, make the advantage performance of industrial sensor networking transmission maximum.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of intelligent inclinator based on the ProfiBus bus, described intelligent inclinator comprises: obliquity sensor, filter unit, processor, digital display graduation rotating platform, ProfiBus module;
Obliquity sensor is in order to provide high-resolution angle of inclination;
Filter unit is connected with described obliquity sensor, in order to the simulating signal of described obliquity sensor output is carried out filtering;
Processor is connected with described filter unit, in order to simulating signal obliquity sensor output, process filtering is carried out the high precision analogue conversion, in processor, do digital signal filter, reflect truly inclination angle output information, and the signal after the digital processing is carried out angular transition;
Digital display graduation rotating platform is connected with described processor, tests in order to biography inclination angle sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Linear calibration's coefficient that described processor further utilizes digital display graduation rotating platform to calculate is made linear compensation to the angle-data of measuring;
The ProfiBus module is connected with described processor, in order to ProfiBus fieldbus transmission mode to be provided, the angle information of dipmeter survey is transferred to receiving terminal in the mode of ProfiBus fieldbus;
Power-supply system is connected with described obliquity sensor, filter unit, processor, digital display graduation rotating platform, in order to power supply to be provided.
As a kind of preferred version of the present utility model, described filter unit is the hardware filtering unit, in order to filtering in the simulating signal bandwidth that obliquity sensor is exported.
As a kind of preferred version of the present utility model, described inclinator further comprises high low temperature sweat box, does compensation in order to the temperature at zero point of inclinator is floated.
As a kind of preferred version of the present utility model, described inclinator further comprises high low temperature sweat box, does compensation in order to the Sensitivity Temperature of inclinator is floated.
As a kind of preferred version of the present utility model, described processor is the MCU of built-in 24bit analog-to-digital conversion unit AD.
As a kind of preferred version of the present utility model, described ProfiBus module is built-in module, is connected with MCU by digital serial interface; The ProfiBus module comprises ProfiBus protocol processing unit, ProfiBus interface.
The beneficial effects of the utility model are: the intelligent inclinator based on the ProfiBus bus that the utility model proposes, roll, pitch attitude angle can be provided, utilization is in the mode of fieldbus module transmission, solve the inconvenience that existing host-host protocol brings, node administration is provided simultaneously, makes the advantage performance of fieldindustrybus maximum.
In addition, the utility model Digital Dipmeter in house software is integrated from calibration algorithm, and externally shirtsleeve operation realizes the digital automatic Calibration of Digital Dipmeter itself.
Description of drawings
Fig. 1 is the composition schematic diagram of the utility model Digitalized intelligent clinometer.
Fig. 2 is the process flow diagram of the utility model dipmeter survey method.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment one
The utility model has disclosed a kind of intelligent inclinator based on the ProfiBus bus, and described intelligent inclinator comprises: obliquity sensor, filter unit, processor, digital display graduation rotating platform, ProfiBus module.Obliquity sensor is in order to provide high-resolution angle of inclination; Filter unit is connected with described obliquity sensor, in order to the simulating signal of described obliquity sensor output is carried out filtering.Processor is connected with described filter unit, in order to simulating signal obliquity sensor output, process filtering is carried out the high precision analogue conversion, in processor, do digital signal filter, reflect truly inclination angle output information, and the signal after the digital processing is carried out angular transition.Digital display graduation rotating platform is connected with described processor, tests in order to biography inclination angle sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Linear calibration's coefficient that described processor further utilizes digital display graduation rotating platform to calculate is made linear compensation to the angle-data of measuring.The ProfiBus module is connected with described processor, in order to ProfiBus fieldbus transmission mode to be provided, the angle information of dipmeter survey is transferred to receiving terminal in the mode of PROFIBUS fieldbus.Power-supply system is connected with described obliquity sensor, filter unit, processor, digital display graduation rotating platform, in order to power supply to be provided.
See also Fig. 1, in the present embodiment, described inclinator comprises core high precision MEMS obliquity sensor 1, hardware filtering unit 2, power-supply system 3, the MCU4 of built-in 24Bit analog-to-digital conversion unit AD, ProfiBus module 5.Described MCU4 connects hardware filtering unit 2, internal battery power-supply system 3, digital display graduation rotating platform, fieldbus module 5, described power-supply system 3 connects obliquity sensor 1, hardware filtering unit 2, digital display graduation rotating platform, ProfiBus module 5, and described ProfiBus module 5 connects MCU4.
Core high precision MEMS obliquity sensor 1 can provide very high angular resolution, by filtering in 2 couples of high precision MEMS of hardware filtering obliquity sensor, the 1 outputting analog signal bandwidth, the MCU of built-in 24BitAD carries out the high precision analogue conversion to the simulating signal of core high precision MEMS obliquity sensor 1 output, in the MCU in house software, do digital signal filtering, reach and reflect truly inclination angle output information.
ProfiBus module 5 is obtained roll, the pitch attitude information of inclinator, transmits in the mode of fieldbus.
The MCU4 of built-in 24bit AD can carry out angular transition to signal after the digital processing, then can utilize outside high-precision digital display graduation rotating platform that obliquity sensor is made the required data of linear compensation and test.The MCU4 of built-in 24bit AD utilizes inner least square method algorithm to the on-line testing data operation, calculates suitable linear calibration's coefficient, and is stored in the Flash Data storage space of opening up MCU inside.After measuring each time, linear calibration's coefficient that the MCU4 of built-in 24bit AD utilizes calculated in advance to go out is made linear compensation to the angle-data of measuring, and reaches the purpose of the linearity that improves measurement of dip angle.
The linear compensation method of described processor comprises: to one group of standard value a
1, a
2, a
3..., a
k, and the actual measurement gained one class value b to organizing standard value
1, b
2, b
3..., b
k, simulate a polynomial expression a according to two class values
i=F (b
i), i=1...k, i.e. f=k
0+ k
1C+k
2C
2+ k
3C
3+ ...+k
mC
m, k
0, k
1, k
2, k
3..., k
mBe multinomial coefficient, C=a
1, a
2, a
3..., a
k; Utilize the least square method algorithm, find the solution the coefficient k of fitting of a polynomial
0, k
1, k
2, k
3..., k
m, the MCU program of processor is solidified this polynomial expression wherein, and utilizes this polynomial expression that the data that gather are carried out polynomial computation, i.e. compensation data.
As shown in Figure 1, described power-supply system 3 is given described obliquity sensor 1, filter unit 2, processor, 5 power supplies of ProfiBus module.
In addition, described Digitalized intelligent clinometer further comprises high low temperature sweat box, does compensation in order to the temperature at zero point of inclinator is floated float with Sensitivity Temperature.Utilize the high low temperature experimental box of external unit that core high precision MEMS obliquity sensor 1 is done temperature compensation test (Sensitivity Temperature is floated, zero point temperature float), built-in 24bitMCU4 utilize inner least square method algorithm to online to test data process, computing, calculate temperature compensation coefficient, and be stored in the storage space of opening up inside, later on every-inferior measurement data output all can by the temperature compensation coefficient correction, can reduce temperature to the impact of sensor well.
The zero point temperature drift compensation method comprises: humid test is done in the output at zero point to inclinator, export the variation of temperature influence the zero point of measuring inclinator, utilize least square fitting to go out polynomial relation formula between zero point output and the temperature variation, Z=Z (T), i.e. Z (T)=k
0+ k
1T+k
2T
2+ k
3T
3+ ...+k
mT
m, wherein, k
0, k
1, k
2, k
3, mBe multinomial coefficient; Utilize the least square method algorithm, find the solution the coefficient k of fitting of a polynomial
0, k
1, k
2, k
3..., k
m, the MCU program of processor is solidified this polynomial expression wherein, and utilizes this relational expression that compensation is done in output at zero point.
The compensation of α TCS method comprises: humid test is done in the sensitivity to inclinator, measure the variation of the sensitivity temperature influence of inclinator, utilize least square fitting to go out polynomial relation formula between sensitivity and the temperature variation, S=S(T), i.e. S (T)=k
0+ k
1T+k
2T
2+ k
3T
3+ ...+k
mT
m, wherein, k
0, k
1, k
2, k
3..., k
mBe multinomial coefficient; Utilize the least square method algorithm, find the solution the coefficient k of fitting of a polynomial
0, k
1, k
2, k
3..., k
m, the MCU program of processor is solidified this polynomial expression wherein, and utilizes this relational expression that compensation is done in sensitivity.
Above-mentioned three compensation process have used least square method; In three compensation process, polynomial coefficient k
0, k
1, k
2, k
3..., k
nCalculate polynomial coefficient k in three compensation process according to actual conditions
0, k
1, k
2, k
3 .m. and do not require equal.
More than introduced the composition of the utility model Digitalized intelligent clinometer, the utility model also discloses a kind of measuring method of above-mentioned Digitalized intelligent clinometer when disclosing above-mentioned Digitalized intelligent clinometer; See also Fig. 2, described measuring method comprises the steps:
[step S1] obliquity sensor provides high-resolution angle of inclination, and filter unit is to the simulating signal filtering of obliquity sensor output;
[step S2] processor carries out the high precision analogue conversion to the simulating signal through filtering of obliquity sensor output, does digital signal filtering in processor, reaches to reflect truly inclination angle output information;
The signal of [step S3] processor after to digital processing carries out angular transition, utilizing outside high-precision digital display graduation rotating platform that obliquity sensor is made the required data of linear compensation tests, described processor utilizes the least square method algorithm to the on-line testing data operation, calculate suitable linear calibration's coefficient, and be stored in the storage space in the processor;
After [step S4] measured each time, linear calibration's coefficient that processor utilizes calculated in advance to go out was made linear compensation to the angle-data of measuring, and reaches the purpose of the linearity that improves measurement of dip angle.
After [step S5] measured each time, fieldbus module was obtained the attitude informations such as inclinator roll, pitching, and transmits in ProfiBus fieldbus mode, to reach the purpose of industrial field bus transmission.
In sum, the intelligent inclinator based on the ProfiBus bus that the utility model proposes, roll, pitch attitude angle can be provided, utilize fieldbus module in the mode of efficient protocol transmission, solve the inconvenience that existing communication modes brings, node administration is provided simultaneously, makes the advantage performance of fieldbus maximum.
Rigid good, not yielding, the high-low temperature resistant of the utility model Digitalized intelligent clinometer, good airproof performance.In addition, the utility model Digital Dipmeter in house software is integrated from calibration algorithm, and externally shirtsleeve operation realizes the digital automatic Calibration of Digital Dipmeter itself.
Here description of the present utility model and application is illustrative, is not to want with scope restriction of the present utility model in the above-described embodiments.Here the distortion of disclosed embodiment and change is possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that in the situation that do not break away from spirit of the present utility model or essential characteristic, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.In the situation that do not break away from the utility model scope and spirit, can carry out other distortion and change to disclosed embodiment here.
Claims (6)
1. the intelligent inclinator based on the ProfiBus bus is characterized in that, described intelligent inclinator comprises:
Obliquity sensor, filter unit, processor, digital display graduation rotating platform, ProfiBus module;
Obliquity sensor is in order to provide high-resolution angle of inclination;
Filter unit is connected with described obliquity sensor, in order to the simulating signal of described obliquity sensor output is carried out filtering;
Processor is connected with described filter unit, in order to simulating signal obliquity sensor output, process filtering is carried out the high precision analogue conversion, in processor, do digital signal filter, reflect truly inclination angle output information, and the signal after the digital processing is carried out angular transition;
Digital display graduation rotating platform is connected with described processor, tests in order to biography inclination angle sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Linear calibration's coefficient that described processor further utilizes digital display graduation rotating platform to calculate is made linear compensation to the angle-data of measuring;
The ProfiBus module is connected with described processor, in order to ProfiBus fieldbus transmission mode to be provided, the angle information of dipmeter survey is transferred to receiving terminal in the mode of ProfiBus fieldbus;
Power-supply system is connected with described obliquity sensor, filter unit, processor, digital display graduation rotating platform, in order to power supply to be provided.
2. the intelligent inclinator based on the ProfiBus bus according to claim 1 is characterized in that:
Described filter unit is the hardware filtering unit, in order to filtering in the simulating signal bandwidth that obliquity sensor is exported.
3. the intelligent inclinator based on the ProfiBus bus according to claim 1 is characterized in that:
Described inclinator further comprises high low temperature sweat box, does compensation in order to the temperature at zero point of inclinator is floated.
4. the intelligent inclinator based on the ProfiBus bus according to claim 1 is characterized in that:
Described inclinator further comprises high low temperature sweat box, does compensation in order to the Sensitivity Temperature of inclinator is floated.
5. the intelligent inclinator based on the ProfiBus bus according to claim 1 is characterized in that:
Described processor is the MCU of built-in 24bit analog-to-digital conversion unit AD.
6. the intelligent inclinator based on the ProfiBus bus according to claim 5 is characterized in that:
Described ProfiBus module is built-in module, is connected with MCU by digital serial interface; The ProfiBus module comprises ProfiBus protocol processing unit, ProfiBus interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425914 CN202757613U (en) | 2012-08-24 | 2012-08-24 | Intelligent clinometer based on ProfiBus bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425914 CN202757613U (en) | 2012-08-24 | 2012-08-24 | Intelligent clinometer based on ProfiBus bus |
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| Publication Number | Publication Date |
|---|---|
| CN202757613U true CN202757613U (en) | 2013-02-27 |
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| CN 201220425914 Expired - Fee Related CN202757613U (en) | 2012-08-24 | 2012-08-24 | Intelligent clinometer based on ProfiBus bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344811A (en) * | 2014-11-18 | 2015-02-11 | 中冶南方工程技术有限公司 | Online detection system and method for inclination of piston of gas chamber |
-
2012
- 2012-08-24 CN CN 201220425914 patent/CN202757613U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344811A (en) * | 2014-11-18 | 2015-02-11 | 中冶南方工程技术有限公司 | Online detection system and method for inclination of piston of gas chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |