CN202433012U - Bracing wire type angle measurement system - Google Patents
Bracing wire type angle measurement system Download PDFInfo
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- CN202433012U CN202433012U CN2011205199032U CN201120519903U CN202433012U CN 202433012 U CN202433012 U CN 202433012U CN 2011205199032 U CN2011205199032 U CN 2011205199032U CN 201120519903 U CN201120519903 U CN 201120519903U CN 202433012 U CN202433012 U CN 202433012U
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- Prior art keywords
- backguy
- circuit
- stay
- angle
- supported
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Abstract
The utility model discloses a bracing wire type angle measurement system, relates to a high-precision bracing wire type coding sensor-based angle measurement system, in particular to a device applied to the measurement of a rotating angle of an indirect aiming gun tube. The device has the functions of precisely measuring the rotating angle of the gun tube projected onto the horizontal plane on the premise that no structural improvement is carried out on indirect aiming gun equipment and eliminating the influence of backlash of own structure of the gun. The device consists of a bracing wire length measurement mechanism, a solving circuit and a calibration circuit, wherein the bracing wire length measurement mechanism comprises a bracing wire type coder, a fixing and guiding device and a horizontal measurement device; the solving circuit performs data communication with the bracing wire type coder through an RS422 interface; a core control chip of the solving circuit is an advanced RISC machine (ARM)-Cortex3 core-based microprocessor; and the calibration circuit also adopts an ARM-Cortex3-series microprocessor, is connected with the solving circuit through an RS232 interface, and comprises a group of operating keyboard and digital display tubes.
Description
Technical field
What the utility model stay-supported angle measuring system related to is a kind of angle measuring system based on high precision stay-supported code sensor, particularly takes aim at the device of gun barrel rotation angle measurement between a kind of being applied to.Its function is not carry out under the prerequisite of structure of modification taking aim at the cannon equipment, and the precision measurement gun barrel projects to the anglec of rotation on the surface level, and eliminates the influence of cannon self structure " backlash ".
Background technology
Photoelectric encoder is a kind of common sensor that is used for the measuring mechanism anglec of rotation.When this sensor is used for the gun barrel rotation angle measurement; Need transform the cannon equipment, with scrambler and cannon rotating shaft interlock, this method algorithm is simple and direct; Measuring accuracy is higher, but measuring equipment can't be applied to the examination of real dress cannon to realize the artilleryman is grasped the big gun process easily.Another kind of precision method higher and that metering system is comparatively easy is to use SINS, but this system is usually used in space flight and air equipment, involves great expense, and is not suitable for using in the occasion of taking aim at the artillery operation training.
Summary of the invention
The purpose of the utility model is to above-mentioned weak point a kind of stay-supported angle measuring system to be provided; Being a kind of angle measuring system based on high precision stay-supported code sensor, is that the cannon of a kind of simple in structure, high precision, low cost horizontally rotates the angle automatic measurer.
The utility model stay-supported angle measuring system is to take following technical scheme to realize:
The utility model stay-supported angle measuring system is made up of backguy linear measure longimetry mechanism, resolving circuit and calibration circuit.Backguy linear measure longimetry mechanism comprises stay-supported scrambler, fixing guide piece, the level measurement device of reaching.The stay-supported scrambler that said stay-supported scrambler adopts Germany to produce; Be high resolving power test equipment; This stay-supported scrambler can be measured the backguy variable quantity that equipment carries; Its greatest measurement is 10 meters, and resolution is 0.05 millimeter, and system is through the changing value of the change calculations corresponding angle of this stay-supported scrambler backguy length of measurement.The housing sidepiece of stay-supported scrambler is furnished with threaded mounting hole; Installing component is connected with scrambler through threaded hole, is connected fixingly with the cannon shield through clamp device, is provided with the adjustment handwheel simultaneously; Be used for the backguy guiding, can make the backguy tap point to stationary installation.Stationary installation adopts tripod, fixes through ground nail, prevents that the backguy tap from connecting the back and rocking, and backguy tap draw ring link position is fixing up and down, and through the horizontality that the adjustment integral bonding attachment is regulated backguy, backguy is the scalable direction on surface level.Stationary installation is placed on about 2 meters, side the place ahead of cannon shield, and level measurement device is articulated in the backguy through a light-duty hanging device, measures the horizontality of backguy during adjustment.When gun barrel rotated, angle that shield rotates with it was consistent, and backguy is in horizontality all the time, and length changes with the barrel rotation, through calculating the angle that horizontally rotates that the change amount can obtain gun barrel.
Resolving circuit and stay-supported scrambler carry out data communication through the RS422 interface, and the kernel control chip of resolving circuit is based on the microprocessor of ARM-Cortex3 kernel, have the function of floating-point operation.Resolving circuit resolves the angle variable quantity that the back obtains the gun barrel rotation with the backguy length variations amount that collects by theoretical algorithm, and through contrasting with COMPUTER CALCULATION numerical value, this circuit computational accuracy can reach 10
-6Degree can satisfy the accuracy requirement of use fully.
Calibration circuit has also adopted ARM-Cortex3 series microprocessor, is connected with resolving circuit through the RS232 interface, comprises one group of operation keyboard and shows charactron.Calibration circuit is mainly used in the initialization of system before using, and after backguy adjustment level, need carry out initialization to system, after calibration circuit input initialization data, and necessary initial angle and length data when resolving circuit can obtain to use.In use, calibration circuit need not keep being connected with resolving circuit.
The technique effect of the utility model:
1. adopt high precision stay-supported scrambler and high speed, the little process chip of high-performance ARM to combine, take aim at the angle variable quantity of gun barrel between effectively stay-supported scrambler length measured variable quantity being converted into.Measuring accuracy is high, can be less than the measuring accuracy of 1.5 mils, significantly reduces with respect to the inertia strap-down navigation system cost in the first technology, can't produce the problem of using the conventional codec mode that real dress cannon is reequiped in the first technology.
2. the installation way that adopts is comparatively simple and direct, can backguy linear measure longimetry mechanism fast and effeciently be connected with the shield of taking aim at cannon through anchor clamps, the real cannon of adorning is not carried out any type of transformation.Have the collar in the backguy tap of stay-supported scrambler, can effectively guarantee with the contact area of point of fixity less, to increase measuring accuracy.Level(l)ing mechanism is arranged on backguy tap place, can effectively guarantee the level of backguy through horizontal measuring instrument.
3. the algorithm of the anglec of rotation need not accurately be measured the initial length of backguy based on the variable quantity of backguy length, to operator's use difficulty, and effectively eliminates the initial alignment error of system self in the time of can reducing initialization.
Description of drawings
Below will combine accompanying drawing that the utility model is described further:
Fig. 1 is the principle schematic of the utility model stay-supported angle measuring system.
Fig. 2 is the wiring layout of each parts of the utility model stay-supported angle measuring system.
Fig. 3 takes aim at the synoptic diagram on the cannon between the utility model stay-supported angle measuring system is installed in.
Among the figure: 1, locking adjustment structure, 2, stationary fixture, 3, control hand wheel, 4, the stay-supported scrambler, 5, backguy, 6, level measurement device, 7, the backguy set collar, 8, tripod, 9, ground nail.
Embodiment
With reference to accompanying drawing 1～3, the utility model stay-supported angle measuring system is made up of backguy linear measure longimetry mechanism, resolving circuit and calibration circuit.Backguy linear measure longimetry mechanism comprises stay-supported scrambler 4, tripod 8, backguy set collar 7, level measurement device 6.The stay-supported scrambler that said stay-supported scrambler adopts Germany to produce; Be high resolving power test equipment; This stay-supported scrambler can be measured the backguy variable quantity that equipment carries; Its greatest measurement is 10 meters, and resolution is 0.05 millimeter, and system is through the changing value of the change calculations corresponding angle of this stay-supported scrambler backguy length of measurement.The housing sidepiece of stay-supported scrambler is furnished with threaded mounting hole; Installing component is connected with scrambler through threaded hole; Be connected fixingly through stationary fixture 2 with the cannon shield, be provided with control hand wheel 3 simultaneously and be used for backguy guiding, can make the backguy tap point to stationary installation.Stationary installation adopts tripod 8, and is fixing through ground nail 9, prevents that the backguy tap from connecting the back and rocking, and backguy tap draw ring link position is fixing up and down, and through the horizontality that the height of adjustment tripod 8 is regulated backguy 5, backguy 5 is the scalable direction on surface level.Stationary installation is placed on about 2 meters, side the place ahead of cannon shield, and level measurement device 6 is articulated in the backguy through a light-duty hanging device, measures the horizontality of backguy during adjustment.Level measurement device adopts commercially available horizontal survey device.When gun barrel rotated, angle that shield rotates with it was consistent, and backguy is in horizontality all the time, and length changes with the barrel rotation, through calculating the angle that horizontally rotates that the change amount can obtain gun barrel.
Resolving circuit and stay-supported scrambler carry out data communication through the RS422 interface, and the kernel control chip of resolving circuit is based on the microprocessor of ARM-Cortex3 kernel, have the function of floating-point operation.Resolving circuit resolves the angle variable quantity that the back obtains the gun barrel rotation with the backguy length variations amount that collects by theoretical algorithm, and through contrasting with COMPUTER CALCULATION numerical value, this circuit computational accuracy can reach 10
-6Degree can satisfy the accuracy requirement of use fully.
Calibration circuit has also adopted ARM-Cortex3 series microprocessor, is connected with resolving circuit through the RS232 interface, comprises one group of operation keyboard and shows charactron.Calibration circuit is mainly used in the initialization of system before using, and after backguy adjustment level, need carry out initialization to system, after calibration circuit input initialization data, and necessary initial angle and length data when resolving circuit can obtain to use.In use, calibration circuit need not keep being connected with resolving circuit.
The algorithm of the utility model anglec of rotation need not accurately be measured the initial length of backguy based on the variable quantity of backguy length, to operator's use difficulty, and effectively eliminates the initial alignment error of system self in the time of can reducing initialization.
Consult shown in Figure 1 earlier.The design of the utility model stay-supported angle measuring system is based on the geometrical principle shown in the figure.
Like Fig. 1: A is that gun barrel horizontally rotates the center, and E is the backguy point of fixity of scrambler, the point of fixity of sensor when the D point is represented initial position, and C, B, F represent the rotation direction sensor point of fixity No. three times.
Gun barrel is adjusted to horizontal level earlier; Barrel rotates the cube parallactic angle continuously to deviating from backguy fixed position direction; Each angle step
; And obtaining the backguy length increment
,
,
when initial position (relatively increment) of three correspondences through the stay-supported scrambler, can calculate data such as initial angle, initial length this moment.Can measure actual cannon deflection angle according to these result of calculations during actual measurement.
Concrete computation process; Draw by cosine formula; Hereinafter
is the initial angle of barrel and backguy; L is the initial length of backguy,
be respectively length of tube and rotation center distance to point of fixity D.
(1) initial position:
(2) horizontal deflection
for the first time
(3) horizontal deflection
for the second time
(4) horizontal deflection
for the second time
Back three formulas are subtracted each other with the same form respectively:
Above-mentioned system of equations with angle and cosine launch after; Compare in twos after proposing
; Can get
,
,
, know thereby
is unique.
Formal measuring process: because principal direction of fire
,
,
are known; Gun muzzle deflection certain angle
;
the unknown; This moment corresponding backguy sensor length increment
, can get thus:
By following formula, obviously can draw
.
During practical implementation, at first will stay-supported scrambler 4 be installed on the cannon shield, itself and cannon be fixed reliably connecting into a rigid body through locking adjustment structure 1 through anchor clamps 2.Fixed triangle frame 8 is placed on about 2 meters of gun barrel side the place ahead, and it is firm to be fixed through ground nail 9, does not rock.Backguy 5 is fixed on the tripod 8 after scrambler is pulled out, and draw ring 7 contacts with the tripod axostylus axostyle, and can change the draw ring contact position with stayguy direction.The inceptive direction of backguy can be adjusted through control hand wheel 3, and direction and scrambler end face that backguy is pulled out are in quadrature basically.Through regulating the high and low position of point of fixity, can make backguy be in horizontality, levelness can be measured through horizontal survey device 6.Effect after system's installation is as shown in Figure 3.
, system at first carries out initialization operation before using; To calibrate reconciliation circuit and calculate circuit through cable connection back startup power supply; Again gun barrel is rotated the cube parallactic angle continuously to deviating from backguy fixed position direction; And with each angle step
through calibration circuit input; Obtain corresponding initial value by resolving circuit by above-mentioned computing formula; Resolving circuit provided corresponding indication after calibration was accomplished, and can separate calibration circuit this moment with resolving circuit.
During use; After each gun barrel puts in place; Resolving circuit is gathered the backguy length data of stay-supported scrambler according to the trigger pip that the user provides; Computing formula according to above-mentioned is calculated angle value, and this angle is carried out the demonstration of data through resolving circuit, thereby realizes the angle measurement function of stay-supported angle measuring system.
The utility model measured result shows: the precision that the utility model stay-supported angle measuring system can reach in measurement range is 600 mils (60 degree) is less than 1.5 mils.
Claims (2)
1. a stay-supported angle measuring system is characterized in that: be made up of backguy linear measure longimetry mechanism, resolving circuit and calibration circuit; Backguy linear measure longimetry mechanism comprises stay-supported scrambler, fixing guide piece, the level measurement device of reaching; The housing sidepiece of stay-supported scrambler is furnished with threaded mounting hole; Installing component is connected with scrambler through threaded hole, is connected fixingly with the cannon shield through stationary fixture, is provided with the adjustment handwheel simultaneously; Be used for the backguy guiding, can make the backguy tap point to stationary installation; Stationary installation adopts the tripod pattern; Fix through ground nail, prevent that the backguy tap from connecting the back and rocking, backguy tap draw ring link position is fixing up and down; Through the horizontality that the whole height of adjustment tripod is regulated backguy, backguy is the scalable direction on surface level; Stationary installation is placed on 2 meters, side the place ahead of cannon shield; Level measurement device directly is articulated in the backguy, measures the horizontality of backguy during adjustment, when gun barrel rotates; The angle that shield rotates with it is consistent; Backguy is in horizontality all the time, and length changes with barrel rotation, through calculating the angle that horizontally rotates that the change amount can obtain gun barrel;
Resolving circuit and stay-supported scrambler carry out data communication through the RS422 interface; The kernel control chip of resolving circuit is based on the microprocessor of ARM-Cortex3 kernel; Function with floating-point operation; Resolving circuit resolves the angle variable quantity that the back obtains the gun barrel rotation with the backguy length variations amount that collects by theoretical algorithm, and through contrasting with COMPUTER CALCULATION numerical value, this circuit computational accuracy can reach 10
-6Degree;
Calibration circuit has also adopted ARM-Cortex3 series microprocessor, is connected with resolving circuit through the RS232 interface, comprises one group of operation keyboard and shows charactron; Calibration circuit is used for the initialization of system before using, and after backguy adjustment level, need carry out initialization to system; After calibration circuit input initialization data; Necessary initial angle and length data when resolving circuit can obtain to use, in use, calibration circuit need not keep being connected with resolving circuit.
2. stay-supported angle measuring system according to claim 1; It is characterized in that: said stay-supported scrambler can be measured the backguy variable quantity that equipment carries; Its greatest measurement is 10 meters; Resolution is 0.05 millimeter, the changing value of the change calculations corresponding angle through measuring stay-supported scrambler backguy length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199032U CN202433012U (en) | 2011-12-14 | 2011-12-14 | Bracing wire type angle measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199032U CN202433012U (en) | 2011-12-14 | 2011-12-14 | Bracing wire type angle measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433012U true CN202433012U (en) | 2012-09-12 |
Family
ID=46782452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205199032U Withdrawn - After Issue CN202433012U (en) | 2011-12-14 | 2011-12-14 | Bracing wire type angle measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721392A (en) * | 2011-12-14 | 2012-10-10 | 中国人民解放军总参谋部第六十研究所 | Pull-wire type angle measurement system |
| CN105547230A (en) * | 2016-01-30 | 2016-05-04 | 成都康拓兴业科技有限责任公司 | Airplane horizontal tail deflection angle measurement method on the basis of linear displacement method |
| CN106247897A (en) * | 2016-08-10 | 2016-12-21 | 九江汉唐光电传输技术有限公司 | A kind of displacement sensor for pull rope being integrated with Error Compensation Technology and preparation method thereof |
-
2011
- 2011-12-14 CN CN2011205199032U patent/CN202433012U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721392A (en) * | 2011-12-14 | 2012-10-10 | 中国人民解放军总参谋部第六十研究所 | Pull-wire type angle measurement system |
| CN102721392B (en) * | 2011-12-14 | 2014-10-08 | 中国人民解放军总参谋部第六十研究所 | Pull-wire type angle measurement system |
| CN105547230A (en) * | 2016-01-30 | 2016-05-04 | 成都康拓兴业科技有限责任公司 | Airplane horizontal tail deflection angle measurement method on the basis of linear displacement method |
| CN105547230B (en) * | 2016-01-30 | 2018-01-05 | 成都康拓兴业科技有限责任公司 | Aircraft horizontal tail deflection angle measuring method based on straight-line displacement method |
| CN106247897A (en) * | 2016-08-10 | 2016-12-21 | 九江汉唐光电传输技术有限公司 | A kind of displacement sensor for pull rope being integrated with Error Compensation Technology and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120912 Effective date of abandoning: 20141008 |
|
| RGAV | Abandon patent right to avoid regrant |