CN103048483B - Angle signal harvester and disposal route thereof - Google Patents
Angle signal harvester and disposal route thereof Download PDFInfo
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- CN103048483B CN103048483B CN201210527722.3A CN201210527722A CN103048483B CN 103048483 B CN103048483 B CN 103048483B CN 201210527722 A CN201210527722 A CN 201210527722A CN 103048483 B CN103048483 B CN 103048483B
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Abstract
A kind of angle signal harvester, comprise: enclosing cover, mount pad, printed circuit board (PCB), magnet steel, magnet steel seat and signal processing module, wherein: in enclosing cover, be provided with groove and interior step, printed circuit board (PCB) to embed in enclosing cover and is located by groove and interior step, and being arranged on mount pad with enclosing cover, magnet steel is embedded by described mount pad and is fixed in described magnet steel seat; Wherein printed circuit board (PCB) is connected with signal processing module, printed circuit board (PCB) acquisition angles, and is that serial data exports signal processing module to by angular transition, and signal processing module processes to obtain angular velocity and angular acceleration to serial data.Angle signal harvester in the present invention, with low cost, simple installation, error is little.
Description
Technical field
The present invention relates to signals collecting, particularly relate to a kind of method of angle signal harvester and angle signal process.
Background technology
At present, in order to angle direction and the rotating speed of better opertaing device, need to obtain angle signal by sensor, and carry out adjustment opertaing device according to the angle signal got.And in the type selecting of sensor:
Mechanical potentiometer is installing relative difficulty, and easily causes mechanical wear after having grown service time.Further, also to add after analog-to-digital conversion device is converted to digital signal and just can carry out digital signal processing.
Gyrostatic principle based on MEMS (micro electro mechanical system) (MEMS) technology is rely on the power of earth magnetism and orientation to judge gyrostatic direction.Because earth magnetism is more weak, when this sensor proximity has high-intensity magnetic field, error can be very large.
At least need three linear acceleration transducers to be fixed on different geometric positions by the words of linear acceleration conversion angular acceleration, geometry is complicated, and cost is higher, and there is geometric error.
Summary of the invention
In view of this, be necessary to provide a kind of method of with low cost, angle signal harvester that collection signal error is little and angle signal process.
Angle signal harvester provided by the invention, comprise: enclosing cover, mount pad, printed circuit board (PCB), magnet steel, magnet steel seat and signal processing module, wherein: in described enclosing cover, be provided with groove and interior step, described printed circuit board (PCB) to embed in described enclosing cover and is located by described groove and described interior step, and being arranged on described mount pad with described enclosing cover, described magnet steel is embedded by described mount pad and is fixed in described magnet steel seat; Wherein said printed circuit board (PCB) is connected with signal processing module, described printed circuit board (PCB) carrys out acquisition angles by the change of the stronger high-intensity magnetic field of antijamming capability around perception magnet steel, and be that serial data exports described signal processing module to by described angular transition, described signal processing module processes to obtain angular velocity and angular acceleration to described serial data.
The present invention also provides a kind of method of angle signal Acquire and process, comprises the following steps: angular transducer by the changes of magnetic field acquisition angles of magnet steel, and is converted into the serial data becoming highly linear relation with this angle; Printed circuit board (PCB) exports described serial data to described signal processing module by the change of the stronger high-intensity magnetic field of antijamming capability around perception magnet steel; Signal processing module processes to obtain angular velocity and angular acceleration to described serial data.
The angular velocity that angle signal harvester in embodiment of the present invention and the method for Acquire and process thereof utilize printed circuit board (PCB), magnet steel and signal processing module to gather and angular acceleration, with low cost, simple installation, error is little.
Accompanying drawing explanation
Fig. 1 is the structural drawing of angle signal harvester in an embodiment of the present invention;
Fig. 2 is the annexation figure of printed circuit board (PCB) and signal processing module in Fig. 1;
Fig. 3 is the module map of signal processing module in Fig. 2;
Fig. 4 is the main flow chart of angle signal Acquire and process method in an embodiment of the present invention;
Fig. 5 is the particular flow sheet of step S30 in Fig. 4.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, term " interior ", " outward ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description instead of require that the present invention with specific azimuth configuration and operation, therefore must can not be interpreted as limitation of the present invention.
Refer to Fig. 1, Figure 1 shows that the structural drawing of angle signal harvester in an embodiment of the present invention.
In the present embodiment, angle signal harvester comprises: enclosing cover 1, mount pad 4, printed circuit board (PCB) 2, magnet steel 3 and magnet steel seat 5.
In the present embodiment, groove and interior step (not shown) is provided with in described enclosing cover 1, described printed circuit board (PCB) 2 to embed in described enclosing cover 1 and is located by described groove and described interior step, and being arranged on described mount pad 4 with described enclosing cover 1, described magnet steel 3 is embedded by described mount pad 4 and is fixed in described magnet steel seat 5.
Refer to Fig. 2, Figure 2 shows that the annexation figure of printed circuit board (PCB) 2 and signal processing module 10 in Fig. 1.
In the present embodiment, angle signal harvester also comprises signal processing module 10 (Fig. 1 is not shown), wherein said printed circuit board (PCB) 2 is connected with signal processing module 10, described printed circuit board (PCB) 2 acquisition angles, and be that serial data exports described signal processing module 10 to by described angular transition, described signal processing module 10 processes to obtain angular velocity and angular acceleration to described serial data.
In the present embodiment, signal processing module 10 is arranged in FPGA (or CPLD) chip.
In the present embodiment, described printed circuit board (PCB) 2 is roughly rounded, is provided with angular transducer, voltage stabilizer, analog to digital converter and relevant peripheral circuit thereof, wherein, angular transducer is arranged at the middle part of described printed circuit board (PCB) 2, for accepting the magnetic field of the different angles that described magnet steel 5 produces.
In the present embodiment, angular transducer is Hall angular transducer, is judged the change of angle, be not vulnerable to magnetic interference based on the Hall angular transducer of hall principle by the change experiencing its periphery high-intensity magnetic field, and with low cost, and it is convenient to install.
Refer to Fig. 3, Figure 3 shows that the module map of signal processing module 10 in Fig. 2.
In the present embodiment, described signal processing module 10 comprises: the zeroing of deserializer 101, angle device 102, angular filter 103, first differentiator 104, angular velocity wave filter 105 and the second differentiator 106.
In the present embodiment, deserializer 101 receives the serial data that described printed circuit board (PCB) sent, and described serial data is converted to parallel data.
In the present embodiment, serial data is 10, becomes highly linear relation by default with the angle of 0 ~ 360 degree.
Angle zeroing device 102 obtains for carrying out zeroing to described parallel data the data that return to zero.
Angular filter 103 obtains filtering data for carrying out filtering to described zeroing data.
First differentiator 104 obtains described angular velocity for differentiating to described filtering data.In the present embodiment, the first differentiator 104 pairs of filtering datas carry out time differential computing.
Angular velocity wave filter 105 obtains angular velocity filtering signal for carrying out filtering to described angular velocity.
Second differentiator 106 obtains described angular acceleration for differentiating to described angular velocity filtering signal.In the present embodiment, the second differentiator 106 diagonal angle pie slice data carry out time differential computing.
In the present embodiment, described signal processing module 10 also comprises data-carrier store 100, for memory parallel data, zeroing data, filtering data, angular velocity, angular velocity filtering signal and angular acceleration.
In the present embodiment, described signal processing module 10 also comprises the choosing of program storage 108, parallel-to-serial converter 107 and sheet and clock-signal generator 109.
In the present embodiment, program storage 108 is for storing the amended program of user, and amended program is sent on printed circuit board (PCB) 2 by parallel-to-serial converter 107 in a serial fashion.
In the present embodiment, sheet choosing and clock-signal generator 109 are for guaranteeing the synchronous of printed circuit board (PCB) 2 and signal processing module 10 Signal transmissions.
Refer to Fig. 4, Figure 4 shows that the main flow chart of angle signal disposal route in an embodiment of the present invention.
In the present embodiment, the method that angle signal gathers, comprises the following steps:
In step S10, angular transducer is according to the changes of magnetic field acquisition angles of magnet steel 3.
In step S20, described angular transition is that serial data exports described signal processing module 10 to by printed circuit board (PCB) 2.
In step S30, described signal processing module 10 processes to obtain angular velocity and angular acceleration to described serial data.
Refer to Fig. 5, Figure 5 shows that the particular flow sheet of step S30 in Fig. 4
In the present embodiment, the concrete steps of step S30 comprise the following steps:
In step S300, deserializer 101 receives the serial data that described printed circuit board (PCB) 2 sent, and described serial data is converted to parallel data.
In step S302, angle zeroing device 102 carries out zeroing to described parallel data and obtains the data that return to zero.
In step S304, angular filter 103 is carried out filtering to described zeroing data and is obtained filtering data.
In step S306, the first differentiator 104 is differentiated to described filtering data and is obtained described angular velocity.
In step S308, angular velocity wave filter 105 carries out filtering to described angular velocity and obtains angular velocity filtering signal;
In step S310, the second differentiator 106 is differentiated to described angular velocity filtering signal and is obtained described angular acceleration.
The angular velocity that angle signal harvester in embodiment of the present invention and the method for angle signal process utilize printed circuit board (PCB) 2, magnet steel 3 and signal processing module 10 to gather and angular acceleration, with low cost, simple installation, error is little.
Although the present invention is described with reference to current better embodiment; but those skilled in the art will be understood that; above-mentioned better embodiment is only used for the present invention is described; not be used for limiting protection scope of the present invention; any within the spirit and principles in the present invention scope; any modification of doing, equivalence replacement, improvement etc., all should be included within the scope of the present invention.
Claims (4)
1. an angle signal harvester, comprising: enclosing cover, mount pad, printed circuit board (PCB), magnet steel, magnet steel seat and signal processing module, wherein:
Groove and interior step is provided with in described enclosing cover, described printed circuit board (PCB) to embed in described enclosing cover and is located by described groove and described interior step, and being arranged on described mount pad with described enclosing cover, described magnet steel is embedded by described mount pad and is fixed in described magnet steel seat;
Wherein said printed circuit board (PCB) is connected with signal processing module, described printed circuit board (PCB) is by the angular transducer acquisition angles in portion disposed therein, and be that serial data exports described signal processing module to by described angular transition, described signal processing module processes to obtain angular velocity and angular acceleration to described serial data;
Signal processing module wherein comprises:
Deserializer, for being converted to parallel data by described serial data;
Angle zeroing device, obtains for carrying out zeroing to described parallel data the data that return to zero;
Angular filter, obtains filtering data for carrying out filtering to described zeroing data;
First differentiator, obtains described angular velocity for differentiating to described filtering data;
Angular velocity wave filter, obtains angular velocity filtering signal for carrying out filtering to described angular velocity;
Second differentiator, obtains described angular acceleration for differentiating to described angular velocity filtering signal.
2. angle signal harvester as claimed in claim 1, is characterized in that, also comprise data-carrier store, for the signal data of memory parallel data, zeroing data, each filtering data and angle, angular velocity and angular acceleration.
3. angle signal harvester as claimed in claim 1, it is characterized in that, described printed circuit board (PCB) is provided with angular transducer, voltage stabilizer and analog to digital converter, wherein, the magnetic field of different angles of angular transducer for accepting described magnet steel and producing.
4. utilize a method for the angle signal harvester acquisition angles signal described in claim 1, comprising:
Angular transducer by the high-intensity magnetic field change acquisition angles around magnet steel, and is converted into serial data;
Printed circuit board (PCB) exports described serial data to signal processing module;
Signal processing module processes to obtain angular velocity and angular acceleration to described serial data;
Described signal processing module processes to obtain angular velocity to described serial data and angular acceleration comprises: receive the serial data that described printed circuit board (PCB) sent, and described serial data is converted to parallel data; Zeroing is carried out to described parallel data and obtains the data that return to zero; Filtering is carried out to described zeroing data and obtains filtering data; Described filtering data is differentiated and obtains described angular velocity; Filtering is carried out to described angular velocity and obtains angular velocity filtering signal; Described angular velocity filtering signal is differentiated and obtains described angular acceleration.
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| CN201210527722.3A CN103048483B (en) | 2012-12-07 | 2012-12-07 | Angle signal harvester and disposal route thereof |
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| CN201210527722.3A CN103048483B (en) | 2012-12-07 | 2012-12-07 | Angle signal harvester and disposal route thereof |
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| CN103048483B true CN103048483B (en) | 2016-01-27 |
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| CN103278657B (en) * | 2013-06-19 | 2015-08-05 | 中国石油大学(华东) | The tachometric survey mechanism of stable platform in dynamic guiding type rotary steering drilling tool |
Citations (4)
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|---|---|---|---|---|
| CN101473231A (en) * | 2006-06-21 | 2009-07-01 | Nxp股份有限公司 | A sensor for sensing accelerations |
| CN201514492U (en) * | 2009-09-08 | 2010-06-23 | 国家气候中心 | Digitalized wind velocity and wind direction sensor compatible with SDI-12 protocol |
| CN101929834A (en) * | 2009-06-18 | 2010-12-29 | 株式会社日立制作所 | Rotary angle detecting device and speed detector |
| CN202562494U (en) * | 2012-04-18 | 2012-11-28 | 昆山思弗泰科电子控制技术有限公司 | Hollow shaft coding disk |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202177368U (en) * | 2011-08-31 | 2012-03-28 | 扬州大学 | Non-contact type high-precision angular displacement sensor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473231A (en) * | 2006-06-21 | 2009-07-01 | Nxp股份有限公司 | A sensor for sensing accelerations |
| CN101929834A (en) * | 2009-06-18 | 2010-12-29 | 株式会社日立制作所 | Rotary angle detecting device and speed detector |
| CN201514492U (en) * | 2009-09-08 | 2010-06-23 | 国家气候中心 | Digitalized wind velocity and wind direction sensor compatible with SDI-12 protocol |
| CN202562494U (en) * | 2012-04-18 | 2012-11-28 | 昆山思弗泰科电子控制技术有限公司 | Hollow shaft coding disk |
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