CN202994142U - Inclinometer based on Zigbee communication - Google Patents
Inclinometer based on Zigbee communication Download PDFInfo
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- CN202994142U CN202994142U CN 201220425933 CN201220425933U CN202994142U CN 202994142 U CN202994142 U CN 202994142U CN 201220425933 CN201220425933 CN 201220425933 CN 201220425933 U CN201220425933 U CN 201220425933U CN 202994142 U CN202994142 U CN 202994142U
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- zigbee
- processor
- inclinator
- digital
- obliquity sensor
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Abstract
The utility model discloses an inclinometer based on Zigbee communication, comprising a housing and an inclination sensor, a filtering unit, a processor, a digital indexing turntable, a Zigbee module, and an internal battery power system which are arranged in the housing. The filtering unit is used for filtering the signal output by the inclination sensor; the processor is used for processing high-precision analog-digital conversion for analog signal after filtering output by the inclination sensor, digital signal filtering is performed in the processor, and the digital processed signal is subjected to angle conversion; the digital indexing turntable is used for testing data required for linear compensation of the tilt angle sensor, and calculating an appropriate linear calibration coefficient; and a Zigbee module provides a Zigbee wireless transmission manner. The inclinometer of the utility model can provide roll and pitch attitude angle, solves the inconvenience of cable transmission by using the Zigbee wireless module in the wireless transmission manner, and provides power energy management at the same time so as to maximize the advantage of wireless transmission.
Description
Technical field
The utility model belongs to field of measuring technique, relates to a kind of inclinator, relates in particular to a kind of inclinator based on the Zigbee communication.
Background technology
Digitalized clinometer is to measure object tilt variation and the time dependent instrument of pedal line in time; The Zigbee wireless module is used for the Zigbee wireless transmission of sensor signal generally by external outside at sensor.
Usually under, Digitalized clinometer can be measured the attitude angle of roll, pitching and transmit by wired mode.Wireless transmission can relate to the power supply power consumption bottleneck, and special wireless transmission power consumption is had relatively high expectations, and when making wireless transmission, the inclinator power supply continued power time is shorter.Though and in the Zigbee communication mode, node power consumption is lower than wireless telecommunications such as WIFI, GPRS, but still fail to satisfy the long-time power demands of industry spot.
Can not meet the requirement of measurement for the power supply power consumption of the wire transmission mode of existing inclinator based on the acceleration of gravity principle and wireless transmission, single inclinator strengthens the consumption accumulator outward and makes measuring process become heavy, brings great inconvenience to measurement.Wireless module, power supply energy management are combined with inclinator with innovating, reduce user's burden, in some application places, have obvious technical advantage and using value 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 inclinator based on the Zigbee communication is provided, roll, pitch attitude angle can be provided, utilize the Zigbee wireless module in the mode of wireless transmission, solve the inconvenience that wire transmission brings, the power supply energy management is provided simultaneously, makes the advantage performance of wireless transmission maximum.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of inclinator based on the Zigbee communication, described inclinator comprises: housing, and be arranged at housing interior obliquity sensor, filter unit, processor, digital display graduation rotating platform, Zigbee module, internal battery power-supply system;
Described obliquity sensor is in order to provide high-resolution angle of inclination;
Described filter unit is connected with described obliquity sensor, in order to the simulating signal of described obliquity sensor output is carried out filtering;
Described processor is connected with described filter unit, in order to obliquity sensor output, simulating signal process filtering are carried out the high precision analogue conversion, do digital signal filter in processor, reflect truly inclination angle output information, and the signal after digital processing is carried out angular transition;
Described digital display graduation rotating platform is connected with described processor, tests in order to obliquity sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Described processor further utilizes linear calibration's coefficient that digital display graduation rotating platform calculates to make linear compensation to the angle-data of measuring;
Described Zigbee module is connected with described processor, in order to the Zigbee wireless transmission method to be provided;
Described internal battery power-supply system is connected with described obliquity sensor, filter unit, processor, Zigbee module, 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 Zigbee module is built-in module, is connected with processor by its digital serial interface, realizes the networking of a plurality of obliquity sensor nodes in conjunction with host computer.
As a kind of preferred version of the present utility model, described Zigbee module is connected with described processor, the angle information of dipmeter survey is transferred to receiving terminal in the wireless mode of Zigbee or/and the relay, but mix proportion Zigbee wireless sensor network.
The beneficial effects of the utility model are: the inclinator based on the Zigbee communication that the utility model proposes, roll, pitch attitude angle can be provided, utilize the Zigbee wireless module in the mode of wireless transmission, solve the inconvenience that wire transmission brings, the power supply energy management is provided simultaneously, makes the advantage performance of wireless transmission 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 inclinator based on the Zigbee communication, comprises obliquity sensor, filter unit, processor, digital display graduation rotating platform, power-supply system, Zigbee modular unit.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 the simulating signal through filtering of obliquity sensor output is carried out the high precision analogue conversion, do digital signal filtering in processor, reach and reflect truly inclination angle output information, and the signal after digital processing is carried out angular transition; Digital display graduation rotating platform is connected with described processor, tests in order to obliquity sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Described processor further utilizes linear calibration's coefficient that digital display graduation rotating platform calculates to make linear compensation to the angle-data of measuring; The Zigbee modular unit is connected with described processor, in order to the Zigbee wireless transmission method to be provided; Power-supply system is connected with described obliquity sensor, filter unit, processor, digital display graduation rotating platform, Zigbee modular unit, in order to power supply to be provided.
See also Fig. 1, in the present embodiment, described inclinator comprises that angle signal collecting unit 10(comprises core high precision MEMS obliquity sensor 101, temperature collecting cell 103), the MCU30(of hardware filtering unit 50, internal battery power-supply system 20, built-in 24Bit analog-to-digital conversion unit AD comprises A/D converting unit 301, software filtering unit 302), Zigbee module 40.Described MCU30 connects hardware filtering unit 50, internal battery power-supply system 20, digital display graduation rotating platform, Zigbee module 40, and described internal battery power-supply system 20 connects obliquity sensors 101, hardware filtering unit 50, digital display graduation rotating platform, Zigbee module 40.Described Zigbee module 40 connects MCU30.
Core high precision MEMS obliquity sensor 101 can provide very high angular resolution, by filtering in hardware filtering 50 pairs of unit high precision MEMS obliquity sensor 101 outputting analog signal bandwidth, the MCU30 of built-in 24BitAD carries out the high precision analogue conversion to the simulating signal of core high precision MEMS obliquity sensor 101 outputs, do digital signal filtering in the MCU in house software, reach and reflect truly inclination angle output information.
Zigbee module 40 is obtained roll, the pitch attitude information of inclinator, wirelessly transmission.Described Zigbee module 40 is built-in module, is connected with MCU30 by its digital serial interface, realizes the networking of a plurality of obliquity sensor nodes in conjunction with host computer.Described Zigbee module 40 is connected with MCU30, the angle information of dipmeter survey is transferred to the receiving terminal in the wireless mode of Zigbee or/and the relay, mix proportion Zigbee wireless sensor network.
The MCU30 of built-in 24bit AD can carry out angular transition to signal after digital processing, then can utilize outside high-precision digital display graduation rotating platform to make the required data of linear compensation to obliquity sensor and test.The MCU30 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 that open up MCU inside.After measuring each time, the MCU30 of built-in 24bit AD utilizes linear calibration's coefficient that calculated in advance goes out to make 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 to carry out polynomial computation, i.e. compensation data to the data that gather.
As shown in Figure 1, described internal battery power-supply system 20 is given described obliquity sensor 101, hardware filtering unit 50, processor, 40 power supplies of Zigbee module, provides simultaneously the power supply energy monitoring, according to actual measurement class demand, power consumption is done management, satisfy the requirement to the one-shot measurement time.In the present embodiment, internal battery power-supply system 20 satisfies for monitoring intermediate item continued power 7 days, measurement intermediate item continued power 3 days, the power managed requirement of 8 hours of test class project continued power.
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 to float with Sensitivity Temperature.Utilize the high low temperature experimental box of external unit to do temperature compensation test (Sensitivity Temperature is floated, zero point temperature float) to core high precision MEMS obliquity sensor 101, built-in 24bitMCU30 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 each 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 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..., 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 to do compensation to 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 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 to do compensation to 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
mCalculate polynomial coefficient k in three compensation process according to actual conditions
0, k
1, k
2, k
3..., k
mAnd do not require equal.
More than introduced the composition of the utility model Digitalized intelligent clinometer, the utility model also discloses a kind of measurement and transmission method of being combined with the Zigbee module of above-mentioned Digitalized intelligent clinometer when disclosing above-mentioned Digitalized intelligent clinometer; See also Fig. 2, described measurement and transmission method comprise the steps:
[step S1] obliquity sensor provides high-resolution angle of inclination, the simulating signal filtering of filter unit to 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 to make the required data of linear compensation to obliquity sensor 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 processor.
After [step S4] measured each time, processor utilized linear calibration's coefficient that calculated in advance goes out to make 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, the Zigbee wireless module obtained the attitude informations such as inclinator roll, pitching, and with the Zigbee wireless way for transmitting, to reach the purpose of Zigbee wireless way for transmitting.
[step S6] carries out power supply energy management in which way according to survey frequency, mode of operation inclinator, reduces power consumption, the purpose of permanent supply more to reach.
In sum, the inclinator based on the Zigbee communication that the utility model proposes, roll, pitch attitude angle can be provided, utilize the Zigbee wireless module in the mode of Zigbee wireless transmission, solve the inconvenience that wire transmission brings, the power supply energy management is provided simultaneously, makes the advantage performance of wireless transmission 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.
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 realizes 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 (7)
1. the inclinator based on the Zigbee communication, is characterized in that, described inclinator comprises: housing, and be arranged at housing interior obliquity sensor, filter unit, processor, digital display graduation rotating platform, Zigbee module, internal battery power-supply system;
Described obliquity sensor is in order to provide high-resolution angle of inclination;
Described filter unit is connected with described obliquity sensor, in order to the simulating signal of described obliquity sensor output is carried out filtering;
Described processor is connected with described filter unit, in order to obliquity sensor output, simulating signal process filtering are carried out the high precision analogue conversion, do digital signal filter in processor, reflect truly inclination angle output information, and the signal after digital processing is carried out angular transition;
Described digital display graduation rotating platform is connected with described processor, tests in order to obliquity sensor is made the required data of linear compensation, calculates suitable linear calibration's coefficient; Described processor further utilizes linear calibration's coefficient that digital display graduation rotating platform calculates to make linear compensation to the angle-data of measuring;
Described Zigbee module is connected with described processor, in order to the Zigbee wireless transmission method to be provided;
Described internal battery power-supply system is connected with described obliquity sensor, filter unit, processor, Zigbee module, in order to power supply to be provided.
2. the inclinator based on the Zigbee communication 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 inclinator based on the Zigbee communication 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 inclinator based on the Zigbee communication 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 inclinator based on the Zigbee communication 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 inclinator based on the Zigbee communication according to claim 1 is characterized in that:
Described Zigbee module is built-in module, is connected with processor by its digital serial interface, realizes the networking of a plurality of obliquity sensor nodes in conjunction with host computer.
7. the inclinator based on the Zigbee communication according to claim 1 is characterized in that:
Described Zigbee module is connected with described processor, the angle information of dipmeter survey is transferred to receiving terminal in the wireless mode of Zigbee or/and the relay, mix proportion Zigbee wireless sensor network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425933 CN202994142U (en) | 2012-08-24 | 2012-08-24 | Inclinometer based on Zigbee communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425933 CN202994142U (en) | 2012-08-24 | 2012-08-24 | Inclinometer based on Zigbee communication |
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| Publication Number | Publication Date |
|---|---|
| CN202994142U true CN202994142U (en) | 2013-06-12 |
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| CN 201220425933 Expired - Fee Related CN202994142U (en) | 2012-08-24 | 2012-08-24 | Inclinometer based on Zigbee communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371816A (en) * | 2014-08-29 | 2016-03-02 | 同济大学 | Wireless inclination angle measurement system applied to wind driven generator tower cylinder detection |
-
2012
- 2012-08-24 CN CN 201220425933 patent/CN202994142U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371816A (en) * | 2014-08-29 | 2016-03-02 | 同济大学 | Wireless inclination angle measurement system applied to wind driven generator tower cylinder detection |
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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: 20130612 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |