CN207321083U - Stepping motor system, camera with rotatable lens and monitoring system - Google Patents
Stepping motor system, camera with rotatable lens and monitoring system Download PDFInfo
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- CN207321083U CN207321083U CN201720349717.6U CN201720349717U CN207321083U CN 207321083 U CN207321083 U CN 207321083U CN 201720349717 U CN201720349717 U CN 201720349717U CN 207321083 U CN207321083 U CN 207321083U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 150000002739 metals Chemical class 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 6
- 230000010358 mechanical oscillation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a camera technical field refers in particular to a step motor system who detects and correct error through angle sensor, and the terminal surface is equipped with synchronous pulley under the step motor, and the step motor up end is equipped with motor axle center and no friction angle sensor, no friction angle sensor detectable step motor's rotation angle. The non-friction angle sensor is arranged on the upper end surface of the stepping motor, so that closed-loop control of a camera which needs to rotate a monitoring system lens is realized, current or voltage signals of an instant position are obtained, the position of the lens is calculated through the signals and the speed ratio of a synchronous pulley on a motor, the effect of accurate positioning is achieved, errors are automatically corrected, and the influence of interference signals, mechanical vibration and airflow impact is avoided.
Description
Technical field
The present invention relates to electronic technology field, refers in particular to a kind of stepping motor system and camera lens video camera capable of rotating and monitoring
System, more particularly to a kind of the stepping motor system with error correction is detected by angular transducer.
Background technology
In video monitoring field of cameras, such as ball machine, gunlock, holder machine need the place of rotation of lens, especially
Ball-shaped camera is rotated up and down movement, it is necessary to make 100 degree or so on vertical plane, in 360 degree of the horizontal rotation of horizontal plane work
Movement.In use, since system powers off suddenly or the interference of external signal, and frequent resetting, it is exterior
Mechanical disturbance, as strong wind, thunder and lightning earth shock involve, can cause stepper motor to lose step, so as to accumulate position error.
At present, the method for eliminating position error is the clock by internal system, daily to zero when, it is automatic carry out once from
Inspection, so as to eliminate position error, so in use, in other times section, due to electric signal, mechanical shock, weather
Etc. the interference of factor, position error is always produced.
The content of the invention
In view of the above problems, the present invention provides a kind of stepping motor system and camera lens video camera capable of rotating and monitoring system
System, by being installed on the upper surface of stepper motor without rubbing angle sensor, realize needs to do to rotate to monitoring system camera lens
The closed-loop control of the video camera of movement, so that the curtage signal of present position is obtained, by same on signal and motor
The speed of step belt wheel compares to resolve the position where camera lens, plays pinpoint effect, rights the wrong automatically, interference-free signal
With mechanical oscillation, the influence of gas shock.
To achieve these goals, the technical solution adopted by the present invention is as follows：
It is a kind of that the stepping motor system with error correction, including stepper motor are detected by angular transducer, under stepper motor
End face is equipped with synchronous pulley, and stepper motor upper surface is equipped with electrical axis and no rubbing angle sensor, no rubbing angle sensing
Device can detect the rotation angle of stepper motor.
Furthermore, the no rubbing angle sensor uses inductance angular transducer, and inductance angular transducer includes
Lower pallet arranged on stepper motor upper surface is with being located at lower pallet top position and solid space in the upper cover plate on electrical axis, upper cover
Plate is set with lower pallet without friction, and upper cover plate is equipped with upper cover plate axle center, and lower pallet is equipped with shaft through hole, and upper cover plate axle center is worn
Cross shaft through hole to be fixedly connected with electrical axis, upper cover plate is equipped with the sensor conductor of moon ring-shaped, and lower pallet is equipped with multiple
Coil, sensor conductor are correspondingly arranged with coil.
Furthermore, the number of the coil is four, coordinates with the sensor conductor of the moon ring-shaped, passes through stepping
Motor is rotated accurately to divide poor inductance value.
Furthermore, the upper cover plate is set with lower pallet using circular configuration, and upper cover plate axle center is arranged on upper cover plate
Center on, shaft through hole be arranged on lower pallet center on.
Furthermore, the no rubbing angle sensor uses capacitive angle senser, and capacitive angle senser includes
The movement pole plate being fixed on electrical axis and the fixed polar plate for being fixed at stepper motor upper surface, movement pole plate pass through fortune
The connection corresponding with electrical axis of movable plate electrode axle center, fixed polar plate are fixed on stepper motor upper surface by fixed polar plate fixing axle,
Moving pole plate includes the parallel N block sheet metals on electrical axis, and fixed polar plate is arranged on fixed polar plate fixing axle including parallel
On N+1 block sheet metals, movement pole plate and fixed polar plate is set without friction, and the N blocks sheet metal for moving pole plate can be with motor
The rotation in axle center, the space being contactlessly embedded between the N+1 block sheet metals of fixed polar plate.
Furthermore, the movement pole plate includes two pieces of sheet metals, and fixed polar plate includes three pieces of sheet metals.
Furthermore, the fixed polar plate is set with movement pole plate using sector structure.
A kind of rotatable video camera of camera lens, in the rotation of lens drive system of video camera, is passed through using above-mentioned one kind
Angular transducer detects the stepping motor system with error correction.
A kind of monitoring system, employs a kind of above-mentioned rotatable video camera of camera lens and is monitored.
Beneficial effect of the present invention：
The present invention uses such structure setting, is sensed by being installed on the upper surface of stepper motor without rubbing angle
Device, realizes the closed-loop control of the video camera to rotate to monitoring system camera lens needs, so as to obtain the electric current of present position
Or voltage signal, the position where camera lens is resolved by the speed ratio of the synchronous pulley on signal and motor, plays and is accurately positioned
Effect, right the wrong automatically, interference-free signal and mechanical oscillation, the influence of gas shock.
Brief description of the drawings
Fig. 1 is the structure diagram of the stepping motor system of the embodiment of the present invention one；
Fig. 2 is the stereo-resolution schematic diagram of structure shown in Fig. 1；
Fig. 3 is the structure diagram of the stepping motor system of the embodiment of the present invention two；
Fig. 4 is the top view of structure shown in Fig. 3.
Drawing reference numeral explanation：
1. stepper motor；2. synchronous pulley；3. without rubbing angle sensor；4. electrical axis；5. sensor conductor；6. line
Circle；7. upper cover plate；8. lower pallet；9. shaft through hole；10. upper cover plate axle center；20. fixed polar plate；21. move pole plate；22. fix
Pole plate fixing axle；23. move pole plate axle center.
Embodiment
Technical scheme is illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment one：
As shown in Figure 1 to Figure 2, it is of the present invention a kind of the stepper motor system with error correction to be detected by angular transducer
System, including stepper motor 1,1 lower face of stepper motor are equipped with synchronous pulley 2,1 upper surface of stepper motor be equipped with electrical axis 4 and
Without rubbing angle sensor 3, no rubbing angle sensor 3 can detect the rotation angle of stepper motor 1, no rubbing angle sensing
Device 3 uses inductance angular transducer, and inductance angular transducer is included under being arranged on the lower pallet 8 of 1 upper surface of stepper motor and being located at
8 top position of supporting plate and admittedly space are set in the upper cover plate 7 on electrical axis 4, upper cover plate 7 with lower pallet 8 without friction, upper cover plate 7
Upper cover plate axle center 10 is equipped with, lower pallet 8 is equipped with shaft through hole 9, and upper cover plate axle center 10 passes through shaft through hole 9 and electrical axis
4 are fixedly connected, and upper cover plate 7 is equipped with the sensor conductor 5 of moon ring-shaped, and lower pallet 8 is equipped with multiple coils 6, sensor conductor 5 and
Coil 6 is correspondingly arranged.
The present embodiment one uses such structure setting, its operation principle：During detection, by coil 6 and sensor conductor 5
Between by the AC signal of 1KHz, when synchronous pulley 2 drives stepper motor 1 to rotate operation, driven by electrical axis 4
Cover board axle center 10 rotates, and upper cover plate axle center 10 drives upper cover plate 7 to rotate, and the sensor conductor 5 of moon ring-shaped can be detected because of angle
The signal voltage change for changing and producing, when stepper motor 1 stops not running, because leading between coil 6 and sensor conductor 5
There is the AC signal of 1KHz, so the voltage signal of a corresponding fixed value can be detected, then according to the cycle of signal intensity
Number extrapolates the gearratios of synchronous pulley 2 to resolve mirror head-turned angle, and realizes and camera lens is accurately positioned, automatically more
Lookup error, interference-free signal and mechanical oscillation, the influence of gas shock.
As shown in Fig. 2, currently preferred, the number of the coil 6 is four.The regional location that four coils 6 are formed
It is more advantageous to being correspondingly arranged with the sensor conductor of moon ring-shaped 5.
Currently preferred, the upper cover plate 7 is set with lower pallet 8 using circular configuration, and upper cover plate axle center 10 is arranged on
On the center of upper cover plate 7, shaft through hole 9 is arranged on the center of lower pallet 8.The utility model is not limited to upper cover plate
7 are set with lower pallet 8 using circular configuration, as long as logical realize when upper cover plate 7 is moved relative to lower pallet 8, can pass through coil
The change accurate feedback of voltage signal values between 6 and sensor conductor 5 goes out the angle of camera lens rotation, such coil 6 and sensing
The technical solution that conductor 5 is formed just belongs to the protection domain of the present embodiment one.
Embodiment two：
As shown in Figure 3 to Figure 4, the no rubbing angle sensor 3 uses capacitive angle senser, capacitive angle senser
Including the movement pole plate 21 being fixed on electrical axis 4 and the fixed polar plate 20 for being fixed at 1 upper surface of stepper motor, movement
For pole plate 21 by moving the connection corresponding with electrical axis 4 of pole plate axle center 23, fixed polar plate 20 is solid by fixed polar plate fixing axle 22
Due to 1 upper surface of stepper motor, movement pole plate 21 includes the parallel N block sheet metals on electrical axis 4, and fixed polar plate 20 wraps
The parallel N+1 block sheet metals in fixed polar plate fixing axle 22 are included, movement pole plate 21 is set with fixed polar plate 20 without friction, and
The N blocks sheet metal of movement pole plate 21 with the rotation of electrical axis 4, can contactlessly be embedded into the N+1 blocks gold of fixed polar plate 20
Belong to the space between piece.
The present embodiment two uses such structure setting, its operation principle：Fixed pole is equipped with the upper surface of stepper motor 1
Plate 20, as a pole plate of variable capacitance, movement pole plate 21 is then fixed on electrical axis 4, as the another of variable capacitance
One pole plate, during detection, has 5mH by being connected with the AC signal of 1KHz between movement pole plate 21 and fixed polar plate 20, and going here and there
Inductance, when synchronous pulley 2 drive stepper motor 1 rotate operation when, by electrical axis 4 drive movement pole plate 21 rotate, energy
Detect that corresponding change just occurs in the voltage signal of fixed polar plate 20, when stepper motor 1 stops not running, because moving
The AC signal of 1KHz is connected between pole plate 21 and fixed polar plate 20, so the voltage letter of a corresponding fixed Fa can be detected
Number, the gearratio of synchronous pulley 2 is then extrapolated to resolve mirror head-turned angle according to the periodicity of signal intensity, and realize
Camera lens is accurately positioned, is righted the wrong automatically, interference-free signal and mechanical oscillation, the influence of gas shock.
Preferably, pole plate 21 is moved described in the present embodiment two includes two pieces of sheet metals, and fixed polar plate 20 includes three blocks of metals
Preferred embodiment of the piece as the present embodiment two, the present invention can use movement pole plate 21 as N block sheet metals, and fixed pole
Plate 20 is the embodiment of N+1 block sheet metals, and wherein N is positive integer.
Preferably, fixed polar plate 20 described in the present embodiment two is set with movement pole plate 21 using sector structure.This practicality
It is new to be not limited to set using sector structure, as long as can realize when movement pole plate 21 is moved relative to fixed polar plate 20, energy
Go out the angle of camera lens rotation, such fixed polar plate and fortune by the change accurate feedback of the voltage signal values between two pole plates
The technical solution that movable plate electrode is formed just belongs in protection scope of the present invention.
No rubbing angle sensor 3 is except the inductance angular transducer described in embodiment one and the capacitance angle described in embodiment two
Sensor is spent, Grating Angle Sensor or magnetic grid angular transducer can also be used.The position where camera lens can be calculated.
The embodiment of the present invention is described above in association with attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make very much
Form, these are belonged within protection scope of the present invention.
Claims (9)
1. a kind of detect the stepping motor system with error correction, including stepper motor (1), the stepping electricity by angular transducer
Machine (1) lower face is equipped with synchronous pulley (2), it is characterised in that stepper motor (1) upper surface be equipped with electrical axis (4) with
Without rubbing angle sensor (3), the no rubbing angle sensor (3) can detect the rotation angle of stepper motor (1).
2. it is according to claim 1 it is a kind of the stepping motor system with error correction is detected by angular transducer, its feature
It is, the no rubbing angle sensor (3) uses inductance angular transducer, and the inductance angular transducer includes being arranged on stepping
The lower pallet (8) of motor (1) upper surface is with being located at lower pallet (8) top position and solid space in the upper cover plate on electrical axis (4)
(7), the upper cover plate (7) is set with lower pallet (8) without friction, and the upper cover plate (7) is equipped with upper cover plate axle center (10), described
Lower pallet (8) is equipped with shaft through hole (9), and the upper cover plate axle center (10) is fixed with electrical axis (4) through shaft through hole (9)
Connection, the upper cover plate (7) are equipped with the sensor conductor (5) of moon ring-shaped, and the lower pallet (8) is equipped with multiple coils (6),
The sensor conductor (5) is correspondingly arranged with coil (6).
3. it is according to claim 2 it is a kind of the stepping motor system with error correction is detected by angular transducer, its feature
It is, the number of the coil (6) is four, coordinates with the sensor conductor (5) of the moon ring-shaped, passes through stepper motor (1)
Rotate accurately to divide poor inductance value.
4. it is according to claim 2 it is a kind of the stepping motor system with error correction is detected by angular transducer, its feature
It is, the upper cover plate (7) is set with lower pallet (8) using circular configuration, and the upper cover plate axle center (10) is arranged on upper cover plate
(7) on center, the shaft through hole (9) is arranged on the center of lower pallet (8).
5. it is according to claim 1 it is a kind of the stepping motor system with error correction is detected by angular transducer, its feature
It is, the no rubbing angle sensor (3) uses capacitive angle senser, and the capacitive angle senser includes being fixed at
Fixed polar plate (20) of the movement pole plate (21) with being fixed at stepper motor (1) upper surface on electrical axis (4), the movement
Pole plate (21) passes through fixed pole by moving pole plate axle center (23) connection corresponding with electrical axis (4), the fixed polar plate (20)
Plate fixing axle (22) is fixed on stepper motor (1) upper surface, and the movement pole plate (21) includes parallel be arranged on electrical axis (4)
N block sheet metals, the fixed polar plate (20) includes the parallel N+1 block sheet metals in the fixed polar plate fixing axle (22), institute
State movement pole plate (21) to set without friction with fixed polar plate (20), and the N blocks sheet metal for moving pole plate (21) can be with motor shaft
The rotation of the heart (4), the space being contactlessly embedded between the N+1 block sheet metals of fixed polar plate (20).
6. it is according to claim 5 it is a kind of the stepping motor system with error correction is detected by angular transducer, its feature
It is, the movement pole plate (21) includes two pieces of sheet metals, and the fixed polar plate (20) includes three pieces of sheet metals.
7. detecting the stepping motor system with error correction by angular transducer according to a kind of described in claim 5 or 6, it is special
Sign is that the fixed polar plate (20) is set with movement pole plate (21) using sector structure.
A kind of 8. rotatable video camera of camera lens, it is characterised in that in the rotation of lens drive system of video camera, employ as
Claim 1-7 is any described a kind of to detect the stepping motor system with error correction by angular transducer.
A kind of 9. monitoring system, it is characterised in that used the rotatable video camera of a kind of camera lens as claimed in claim 8 into
Row monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349717.6U CN207321083U (en) | 2017-04-05 | 2017-04-05 | Stepping motor system, camera with rotatable lens and monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349717.6U CN207321083U (en) | 2017-04-05 | 2017-04-05 | Stepping motor system, camera with rotatable lens and monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207321083U true CN207321083U (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720349717.6U Expired - Fee Related CN207321083U (en) | 2017-04-05 | 2017-04-05 | Stepping motor system, camera with rotatable lens and monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207321083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998125A (en) * | 2017-04-05 | 2017-08-01 | 深圳富视安智能科技有限公司 | Stepping motor system for detecting and correcting errors through angle sensor |
-
2017
- 2017-04-05 CN CN201720349717.6U patent/CN207321083U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998125A (en) * | 2017-04-05 | 2017-08-01 | 深圳富视安智能科技有限公司 | Stepping motor system for detecting and correcting errors through angle sensor |
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Granted publication date: 20180504 |