CN202374383U - Energy-saving ball-shaped camera - Google Patents
Energy-saving ball-shaped camera Download PDFInfo
- Publication number
- CN202374383U CN202374383U CN 201120515213 CN201120515213U CN202374383U CN 202374383 U CN202374383 U CN 202374383U CN 201120515213 CN201120515213 CN 201120515213 CN 201120515213 U CN201120515213 U CN 201120515213U CN 202374383 U CN202374383 U CN 202374383U
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- motor
- ball
- shaped camera
- reference voltage
- voltage vref
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Abstract
An energy-saving ball-shaped camera comprises a camera body, a micro controller unit (MCU), a power supply, a motor and a motor driving chip. A D/A (digital to analog) conversion interface is formed on the motor driving chip; the MCU is connected with the motor driving chip via the D/A conversion chip, and transmits voltage reference VREF to the motor driving chip via the D/A conversion interface; the torque of the rotation of the motor is controlled by the voltage reference VREF; the voltage reference VREF changes according to the movement status of the motor; and when the motor rotates, the voltage reference VREF is enlarged to a standard value, and the voltage reference VREF is decreased to zero when the motor stops rotation, so that the inaccurate rotation and the loss of synchronism of the motor are avoided during the operation, the temperature of the motor and a driving chip can be lowered, and electric energy is saved.
Description
Technical field
The utility model relates to the technical field of rig camera, is specifically a kind ofly dynamically to adjust the value of reference voltage VREF according to the rotary state of motor, thereby reduces the temperature of motor and chip for driving, the energy-conservation ball-shaped camera of saves energy.
Background technology
Ball-shaped camera is a kind of intelligent video camera front end, and full name is the high-speed intelligent ball-shaped camera, and perhaps integration high speed ball intelligent sphere perhaps is called for short quick, is called for short clipping the ball.Clipping the ball be supervisory control system the most complicated with the best video camera front end of general performance effect, can adapt to high density, the monitoring occasion of complicacy.Ball-shaped camera is the product of high integration; Integrated The Cloud Terrace system, communication system and camera chain; The The Cloud Terrace system is meant the rotating part of driven by motor; Communication system is meant the control of motor and to image and Signal Processing partly and the part that communicates with rear end equipment, camera chain is meant the all-in-one movement of employing.And between several big systems, what play horizontal connection is a microcontroller MCU (being called for short MCU) and power unit.Power unit through with each big system between be connected power supply, wherein little electric currents power supply such as diode, triode is adopted in many places, and MCU realizes that all functions normally move.
Specifically, ball-shaped camera adopts " accurate differential stepping motor " to realize location fast and accurately, the rotation of clipping the ball, and these all are to realize through the instruction that MCU sends.With the image of video camera, the MCU that function is write into clipping the ball, when can be implemented in the control The Cloud Terrace picture transmission is come out, and can realize the multiple function control of video camera, for example functions such as white balance, shutter, aperture, zoom, focusing simultaneously.
Fig. 1 is the structural representation of the ball-shaped camera of prior art.
As shown in Figure 1, in the general ball-shaped camera, spherical shell 1 forms the outward appearance on ball-shaped camera top, and ball-shaped camera is fixed on the installation site, and the spherical shell material generally adopts aluminium alloy, and the aluminium alloy spherical shell generally is divided into casting and punching press two kinds again.Top Connection Block (not shown) is arranged on the movement that the spherical shell inboard is used to install and fix the high speed ball-shaped camera, and the top Connection Block is provided with the upper insert of transmission signals and power supply usefulness.Translucent cover 3 forms the outward appearance of high speed ball-shaped camera bottom, and translucent cover is pressed to annotate by the PC transparent material and formed, and can guarantee image effect and light transmittance, can also play anti-riot, dustproof effect simultaneously.Movement 4 comprises The Cloud Terrace and is connected the video camera 2 on the The Cloud Terrace; Movement and top Connection Block fix; Be arranged in the space of spherical shell and translucent cover formation; Lower insert on the movement matches with the upper insert of top Connection Block, interfixes through screw or buckle between movement and the top Connection Block.
Ball-shaped camera of the prior art comprises: video camera, and it is on-the-spot to be installed in monitoring, and video signal collective is carried out in this zone; Microcontroller MCU is arranged in the ball-shaped camera, sends execution command to the high speed ball-shaped camera, the work of control ball-shaped camera; Power supply is the ball-shaped camera power supply; Motor is installed in ball-shaped camera inside, and actuated camera is rotated in the horizontal direction with on the vertical direction, the shooting angle and the direction of adjustment video camera; Motor drive ic is connected with motor, the control motor rotation.
The rotation of motor is to regulate through different drive currents to motor coil through motor drive ic, and the moment of motor depends on the size of drive current, and the big more output torque of drive current is also just big more under less than the rated current situation.And the moment of motor speed demand high the time is also just big accordingly; Very little drive current just can guarantee that the pinning of ball machine is out-of-step free in low speed; If still according to the current drives motor of high speed rotating, will cause waste of electric energy, but also can cause the rising significantly of the temperature of motor and motor drive ic this time; Operate as normal to motor and motor drive ic has side effects, and high temperature, big electric current are the key factors that influences the electronic component life-span.
By in the existing ball machine circuit structure, motor is all rotated by special driving chip drives motor, controls the output torque of motor through the output current of motor drive ic.During the rotation of ball machine; The power output major part of motor drive ic converts the kinetic energy of motor into; Few part converts thermal energy consumption into and falls; And when the ball machine stopped, the power output of motor drive ic all acted on and converts the heat energy that heat energy and motor drive ic produce on the coil of motor to and together slattern.
And ball machine time above 90% in running time is static, and in this case, the temperature of motor and chip can have fixing temperature rise with the size of electric current, if the life-span that conference has a strong impact on motor and chip for driving is spent in temperature rise.
The utility model content
The technical problem that the utility model will solve provides a kind ofly dynamically adjusts the value of reference voltage VREF according to the rotary state of motor, thereby reduces the temperature of motor and chip for driving, the energy-conservation ball-shaped camera of saves energy.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The energy-conservation ball-shaped camera of the utility model comprises: video camera, and it is on-the-spot to be installed in monitoring, and video signal collective is carried out in this zone; Microcontroller MCU is arranged in the ball-shaped camera, sends execution command to the high speed ball-shaped camera, the work of control ball-shaped camera; Power supply is the ball-shaped camera power supply; Motor is installed in ball-shaped camera inside, and actuated camera is rotated in the horizontal direction with on the vertical direction, the shooting angle and the direction of adjustment video camera; Motor drive ic; Be connected with motor; The control motor rotation is provided with the digital-to-analogue conversion interface on the motor drive ic, microcontroller MCU is connected with motor drive ic through the digital-to-analogue conversion interface; And sending reference voltage VREF to motor drive ic through the digital-to-analogue conversion interface, the moment of torsion that motor rotates is controlled by reference voltage VREF; Reference voltage VREF changes according to the moving situation of motor; Reference voltage VREF increased to standard value when motor rotated, and when motor stops operating reference voltage VREF was set at less than standard value.
The utility model can also adopt following technical scheme:
Above-mentioned motor is a decelerating step motor.
Reference voltage VREF was set to zero when motor stopped operating.
The rotation situation of described microcontroller MCU control survey motor.
Advantage and the good effect that the utlity model has are:
In the energy-conservation ball-shaped camera of the utility model; The digital-to-analogue conversion interface is set on motor drive ic; Microcontroller MCU is connected with motor drive ic through the digital-to-analogue conversion interface; And sending reference voltage VREF to motor drive ic through the digital-to-analogue conversion interface, the moment of torsion that motor rotates is controlled by reference voltage VREF; Reference voltage VREF changes according to the moving situation of motor; When motor rotates, increasing reference voltage VREF value is standard value; The output torque that guarantees motor is kept the normal operation of ball machine, and when motor stops operating, reduces reference voltage level or be 0 according to this value of actual conditions adjustment, thereby has both guaranteed that accurately rotation was out-of-step free in the machine operation process; Can reduce the temperature of motor and chip for driving again, saves energy.
Description of drawings
Fig. 1 is the structural representation of the ball-shaped camera of prior art;
Fig. 2 is the circuit diagram of the energy-conservation ball-shaped camera of the utility model.
Embodiment
Followingly the utility model is carried out detailed explanation with reference to accompanying drawing and embodiment.
Fig. 2 is the circuit diagram of the energy-conservation ball-shaped camera of the utility model.
As shown in Figure 2, the energy-conservation ball-shaped camera of the utility model comprises: video camera, and it is on-the-spot to be installed in monitoring, and video signal collective is carried out in this zone; Microcontroller MCU is arranged in the ball-shaped camera, sends execution command to the high speed ball-shaped camera, the work of control ball-shaped camera; Power supply is the ball-shaped camera power supply; Motor is installed in ball-shaped camera inside, and actuated camera is rotated in the horizontal direction with on the vertical direction, the shooting angle and the direction of adjustment video camera; Motor drive ic; Be connected with motor; The control motor rotation is provided with the digital-to-analogue conversion interface on the motor drive ic, microcontroller MCU is connected with motor drive ic through the digital-to-analogue conversion interface; And sending reference voltage VREF to motor drive ic through the digital-to-analogue conversion interface, the moment of torsion that motor rotates is controlled by reference voltage VREF; Reference voltage VREF changes according to the moving situation of motor; Reference voltage VREF increased to standard value when motor rotated, and reference voltage VREF reduced when motor stopped operating.When ball-shaped camera rotates once more, rapidly reference voltage VREF value is switched to standard value once more.
When above-mentioned motor was decelerating step motor, the reference voltage VREF when can motor stopping operating was set to zero.Because decelerating step motor can be through the position of reduction gearing lock out motor because there is reduction gearing inside.
Rotation situation by microcontroller MCU control survey motor.
Among Fig. 2; Power circuit is the motor drive ic power supply simultaneously; Microcontroller MCU is connected with the digital-to-analogue conversion interface; Send reference voltage VREF through the digital-to-analogue conversion interface to motor drive ic, owing to the motor-driven video camera can rotate simultaneously in the horizontal direction with on the vertical direction, so corresponding different motor rotating manner; Reference voltage is also corresponding to be divided into different VREF1 and two of VREF2, thereby the ac drive voltage that corresponding motor drive ic with different reference is exported to motor also is divided into OUT1A, OUT1B and OUT2A, OUT2B two-way.
The above only is the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction; Though the utility model with preferred embodiment openly as above; Yet, be not in order to limiting the utility model, anyly be familiar with the professional and technical personnel; In not breaking away from the utility model technical scheme scope; Certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from the utility model technical scheme in every case;, all belong in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical spirit of the utility model.
Claims (4)
1. energy-conservation ball-shaped camera comprises: video camera, and it is on-the-spot to be installed in monitoring, and video signal collective is carried out in this zone; Microcontroller MCU is arranged in the ball-shaped camera, sends execution command to the high speed ball-shaped camera, the work of control ball-shaped camera; Power supply is the ball-shaped camera power supply; Motor is installed in ball-shaped camera inside, and actuated camera is rotated in the horizontal direction with on the vertical direction, the shooting angle and the direction of adjustment video camera; Motor drive ic; Be connected with motor; The control motor rotation, it is characterized in that: the digital-to-analogue conversion interface is set on the motor drive ic, and microcontroller MCU is connected with motor drive ic through the digital-to-analogue conversion interface; And sending reference voltage VREF to motor drive ic through the digital-to-analogue conversion interface, the moment of torsion that motor rotates is controlled by reference voltage VREF; Reference voltage VREF changes according to the moving situation of motor; The value of reference voltage VREF was set to standard value when motor rotated, and when motor stops operating reference voltage VREF was set at less than standard value.
2. energy-conservation ball-shaped camera according to claim 1 is characterized in that: above-mentioned motor is a decelerating step motor.
3. energy-conservation ball-shaped camera according to claim 2 is characterized in that: reference voltage VREF was set to zero when motor stopped operating.
4. energy-conservation ball-shaped camera according to claim 1 is characterized in that: the rotation situation of microcontroller MCU control survey motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120515213 CN202374383U (en) | 2011-12-12 | 2011-12-12 | Energy-saving ball-shaped camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120515213 CN202374383U (en) | 2011-12-12 | 2011-12-12 | Energy-saving ball-shaped camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374383U true CN202374383U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120515213 Expired - Fee Related CN202374383U (en) | 2011-12-12 | 2011-12-12 | Energy-saving ball-shaped camera |
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| Country | Link |
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| CN (1) | CN202374383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472257A (en) * | 2016-01-05 | 2016-04-06 | 零度智控（北京）智能科技有限公司 | Cradle head control system and cradle head |
-
2011
- 2011-12-12 CN CN 201120515213 patent/CN202374383U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472257A (en) * | 2016-01-05 | 2016-04-06 | 零度智控（北京）智能科技有限公司 | Cradle head control system and cradle head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dai Lin Inventor after: Zhao Luyao Inventor after: Yu Dezhi Inventor after: Xu Ruiwei Inventor before: Dai Lin Inventor before: Zhao Xiaoyao Inventor before: Yu Dezhi Inventor before: Xu Ruiwei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DAI LIN ZHAO XIAOYAO YU DEZHI XU RUIWEI TO: DAI LIN ZHAO LUYAO YU DEZHI XURUIWEI |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |