CN201278114Y - A rotating base and a display equipment having the rotating base - Google Patents
A rotating base and a display equipment having the rotating base Download PDFInfo
- Publication number
- CN201278114Y CN201278114Y CNU2008201400340U CN200820140034U CN201278114Y CN 201278114 Y CN201278114 Y CN 201278114Y CN U2008201400340 U CNU2008201400340 U CN U2008201400340U CN 200820140034 U CN200820140034 U CN 200820140034U CN 201278114 Y CN201278114 Y CN 201278114Y
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- motor
- rotating base
- control module
- hall device
- end links
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Abstract
The utility model discloses a rotating base and a display device with the rotating base, which belong to the technical field of rotating bases. The utility model solves the problem that the drive current of a motor of a motor-driven rotating base increases to cause rotation misjudge because of different service environments of TV sets and differences of the TV sets in the prior art. The rotating base comprises a control unit, a motor-driven circuit and a motor, wherein the control unit is used for controlling the rotating base to rotate according to control signals and reporting acquired working signals of the motor-driven circuit and the motor, one end of the motor-driven circuit is connected with the control unit, the other end of the motor-driven circuit is connected with the motor, the motor-driven circuit is used for driving the motor to work through the control unit and feeding the drive current of the motor back to the control unit, one end of the motor is connected with the motor-driven circuit, the other end of the motor is connected with the control unit, and the motor-driven circuit drives the motor to work and feeds the operating status of the motor back to the control unit.
Description
Technical field
The utility model relates to a kind of rotating base, relates in particular to a kind of rotating base with anticollision and memory position of rotation function.
Background technology
In the prior art, electric rotating foundation inside has only a common direct current generator, and the outer MCU that encloses (Micro Controller Unit, micro-control unit) controls motor drive ic and then drives direct current generator and rotates.There are two structural extreme positions in the electric rotating foundation device of a whole set of televisor, and motor forwards this position to, owing to be subjected to mechanical stop, motor speed is slack-off, and drive current increases.Micro-control unit MCU can monitor the size of motor drive current at any time, when drive current surpasses a certain threshold value, judges that promptly motor has forwarded extreme position to, stops drive motor immediately, thereby stops the rotation of electric rotating foundation.
In realizing process of the present utility model, the designer finds that there are the following problems at least in the prior art:
Above-described control method erroneous judgement often occurs easily because determination methods is single.For example: in the motorised base rotary course, very likely do not having under the situation of mechanical stop, because the difference of televisor environment for use and the difference of televisor individuality also occur motor drive current easily and increases.Like this, make existing electric rotating foundation control erroneous judgement occur.At the existing situation that occurs erroneous judgement easily, common way can improve the threshold value of MCU inside.But, this way has been introduced a new problem again: if threshold settings is too high, just can stop when then the electric rotating foundation of televisor need run into very big resistance in rotary course, so just make televisor occur collision easily, damage televisor and bumped article.
The utility model content
In order to solve in the prior art because the increase of the electric rotating foundation motor drive current that difference occurred of the difference of televisor environment for use and televisor individuality, the problem of the rotation erroneous judgement that causes, the display device that the utility model provides a kind of rotating base and had this rotating base.
A kind of rotating base that the utility model provides comprises: control module, motor-drive circuit, motor; Described control module is used for according to control signal, and described rotating base is rotated control, and the described motor-drive circuit that will gather and the working signal of motor report;
Described motor-drive circuit, an end links to each other with described control module, and the other end links to each other with described motor; Be used for driving described motor and carry out work, and the drive current of described motor is fed back to described control module according to described control module;
Described motor, an end links to each other with described motor-drive circuit, and the other end links to each other with described control module; Be used for according to the work of described motor-drive circuit drive motor, and the duty of described motor is fed back to described control module.
Further, be mounted with the rotary test device of a cover rotating base in the described motor; This device comprises: magnet ring and hall device; Described magnet ring places in the rotating shaft of described motor, is used to test the rotation status of described motor; Described hall device places the motor stator place near magnet ring, is used for the square wave that the rotation status of described motor is exported by described hall device is fed back to described control module.
Further, described rotary test device comprises: magnet ring and first hall device and second hall device; Described magnet ring places in the rotating shaft of described motor, is used to test the rotation status of described motor; Described first hall device and second hall device are arranged on the motor stator place near magnet ring, be used for the rotation status of described motor is fed back to described control module by the square wave of described first hall device and the output of second hall device respectively, described first hall device and described second hall device are arranged at an angle.
Wherein, described first hall device and second hall device be 90 the degree arrange.Described magnet ring is provided with the one group of S utmost point and the N utmost point at least.Described control module is provided with square wave counting unit, is used to store the square wave number of described hall device output.
Described control module is provided with information process unit, is used for carrying out overall treatment according to the square wave of described hall device and the electric current of described motor-drive circuit feedback.
Further, described rotary test device also comprises: filter network and comparer; Described filter network, an end links to each other with described hall device, and the other end links to each other with described comparer, is used for the square wave of described hall device output is carried out the filtering of interference wave, and sends it to described comparer; Described comparer, an end links to each other with described filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module.
Further, described rotary test device also comprises: first filter network, second filter network, first comparer and second comparer; Described first filter network, an end links to each other with described first hall device, and the other end links to each other with described first comparer, is used for the square wave of described first hall device output is carried out the filtering of interference wave, and sends it to described first comparer; Described second filter network, an end links to each other with described second hall device, and the other end links to each other with described second comparer, is used for the square wave of described second hall device output is carried out the filtering of interference wave, and sends it to described second comparer; Described first comparer, an end links to each other with described first filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module; Described second comparer, an end links to each other with described second filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module.
A kind of display device that the utility model provides with described rotating base.This display device comprises: any one rotating base in the above.
Rotating base that the utility model provides and display device with this rotating base, the drive current that duty by described motor feeds back to the status information of described control module and described motor feeds back to the drive current information of described control module the rotation of rotating base is comprehensively judged, only the erroneous judgement that is caused is judged in the rotation of rotating base thereby greatly reduce in the prior art, thereby also solved simultaneously in the prior art owing to improve the collision problem that the MCU threshold value is caused according to drive current information.
Description of drawings
The structural representation of a kind of rotating base embodiment that Fig. 1 provides for the utility model;
A kind of syndeton synoptic diagram that Fig. 2 provides for the utility model with televisor embodiment of this rotating base.
Embodiment
A kind of rotating base that the utility model is provided below in conjunction with accompanying drawing and the display device with this rotating base are described in detail.
As shown in Figure 1, a kind of rotating base that the utility model provides comprises control module 101, motor-drive circuit 102, motor 103;
Described control module 101 is used for according to control signal, and described rotating base is rotated control, and the described motor-drive circuit that will gather and the working signal of motor report;
Described motor-drive circuit 102, one ends link to each other with described control module, and the other end links to each other with described motor; Be used for driving described motor and carry out work, and the drive current of described motor is fed back to described control module according to described control module;
Described motor 103, one ends link to each other with described motor-drive circuit, and the other end links to each other with described control module; Be used for according to the work of described motor-drive circuit drive motor, and the duty of described motor is fed back to described control module.
Below be that televisor is an example with the display device, the present invention is described in detail.
As shown in Figure 2, a kind of display device that provides for the utility model with this rotating base.This display device comprises: above-described rotating base; This rotating base comprises: micro-control unit U1, direct current generator chip for driving U2, direct current generator; Described micro-control unit U1 is used for according to control signal, and described rotating base is rotated control, and the described direct current generator chip for driving U2 that will gather and the working signal of direct current generator report;
Described direct current generator chip for driving U2, a distolateral and described micro-control unit U1 links to each other, and another distolateral and described direct current generator M links to each other; Be used for driving described direct current generator and carry out work, and the drive current of described direct current generator is fed back to described micro-control unit U1 according to described micro-control unit;
Described direct current generator, a distolateral and described direct current generator chip for driving U2 links to each other, and the other end links to each other with described micro-control unit U1; Be used for driving direct current generator work, and the duty of described direct current generator is fed back to described micro-control unit according to described direct current generator chip for driving U2.
Wherein, be mounted with the rotary test device of a cover rotating base in the described direct current generator; This device comprises: magnet ring and the first hall device H1 and the second hall device H2; Described magnet ring places in the rotating shaft of described motor, is used to test the rotation status of described motor; The described first hall device H1 and the second hall device H2 are arranged on the motor stator place near magnet ring, be used for the square wave that the rotation status of described motor is exported by two hall devices is fed back to described control module, described first hall device H1 and the described second hall device H2 arrange at an angle.This angle can be 90 degree.
Described magnet ring is provided with the one group of S utmost point and the N utmost point at least.Described micro-control unit U1 is provided with square wave counting unit; Be used to store the square wave number of described hall device output.
Described micro-control unit U1 is provided with information process unit, is used for carrying out overall treatment according to the square wave of described hall device and the electric current of described motor-drive circuit feedback.
Described rotary test device also comprises: first filter network, second filter network, first comparer and second comparer; Described first filter network, an end links to each other with the described first hall device H1, and the other end links to each other with described first comparer, is used for the square wave of described first hall device H1 output is carried out the filtering of interference wave, and sends it to described first comparer; Described second filter network, an end links to each other with the described second hall device H2, and the other end links to each other with described second comparer, is used for the square wave of described second hall device H2 output is carried out the filtering of interference wave, and sends it to described second comparer; Described first comparer, an end links to each other with described first filter network, and the other end links to each other with the signals collecting port one of described micro-control unit, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described micro-control unit; Described second comparer, an end links to each other with described second filter network, and the other end links to each other with the signals collecting port 2 of described micro-control unit, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module.
In the process that above-mentioned rotating base is rotated, direct current generator chip for driving U2 drives the direct current generator rotation.When direct current generator rotated, the S utmost point and the N utmost point that drive magnet ring replaced through hall device, and according to Hall effect, the square wave of two exportable rules of hall device and two-way square wave phase differ 90 degree.
When motor at the uniform velocity rotated, the cycle of output square wave was a basic fixed, when motor is stopped, then exported the cycle of square wave and can extend, and when the cycle added value surpasses a certain thresholding, can judge that also televisor is stopped, need stop drive motor in rotary course.
Feed back to the acquired signal of direct current generator working current of micro-control unit and the detection method of above-mentioned direct current generator rotary test square-wave cycle in conjunction with direct current generator chip for driving U2 of the prior art, can under the situation that does not improve threshold value, reduce the generation of erroneous judgement.Motor is hampered slightly in rotary course and keeps off and can stop.
For the control effect of intelligence more is provided to the user, the utility model is realized the position memory function of televisor electric rotating foundation.Can avoid repeatedly repeating to adjust televisor like this and turn to, make the user simple to operation.For example: because televisor is identical rotating to the distance that direct current generator turned over another extreme position process from an extreme position, therefore, the square wave number that hall device is exported in this process is basically identical also, therefore can utilize this characteristic to realize the position memory function.Can be from extreme position 1 opening entry square wave number, stop and remembering order if direct current generator turns over to receive behind X the square wave; Then follow-up receiving again when recovering this position command, MCU is as long as drive motor rotates back into X square wave position in the opposite direction.
When the micro-control unit of rotating base inside from the televisor receiving control information, and be itself and the present state of direct current generator the present position of direct current generator, when uploading to televisor, the inner micro-control unit of rotating base can provide control commands corresponding according to the current location of motor after receiving the order that televisor provides.For example, motor has rotated to extreme position at present, can not continue to have rotated; But the order that micro-control unit receives is to continue rotation, and micro-control unit should shield this order in this case, and gives televisor with the direct current generator feedback of status.And for example: micro-control unit receives " recover televisor to memory area " order, and motor this moment just not on this position, then control module need send the drive motor order, so that drive motor rotates on the needed position.
In order to improve the integrated level of electric rotating foundation, make mutual simple as far as possible between itself and the televisor, the utility model has been integrated in rotating base inside with the control section of electric rotating foundation.In order to realize the effectively mutual of rotating base and televisor, need fixing communication protocol of regulation, because the traffic between these two systems is also little, therefore communication protocol is also relatively simple, for example, can stipulate the protocol format of a byte (8bit), between rotating base and televisor, can realize the transmission of 256 states or order like this.
Televisor or rotating base can carry out the parsing of state or order according to the communication protocol that provides in advance after the other side receives control information.
Rotating base that the utility model provides and display device with this rotating base, the drive current that duty by described motor feeds back to the status information of described control module and described motor feeds back to the drive current information of described control module the rotation of rotating base is comprehensively judged, only the erroneous judgement that is caused is judged in the rotation of rotating base thereby greatly reduce in the prior art, thereby also solved simultaneously in the prior art owing to improve the collision problem that the MCU threshold value is caused according to drive current information.Simultaneously, the utility model also is provided with square wave counting unit at control module; Be used to store the square wave number of described hall device output.Thereby can carry out record to the position of rotation of rotating base, thereby user friendly operation by this unit.
The above; it only is embodiment of the present utility model; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.
Claims (10)
1. a rotating base is characterized in that, comprising: control module, motor-drive circuit, motor; Described control module is used for according to control signal, and described rotating base is rotated control, and the described motor-drive circuit that will gather and the working signal of motor report;
Described motor-drive circuit, an end links to each other with described control module, and the other end links to each other with described motor; Be used for driving described motor and carry out work, and the drive current of described motor is fed back to described control module according to described control module;
Described motor, an end links to each other with described motor-drive circuit, and the other end links to each other with described control module; Be used for according to the work of described motor-drive circuit drive motor, and the duty of described motor is fed back to described control module.
2, rotating base according to claim 1 is characterized in that, is mounted with the rotary test device of a cover rotating base in the described motor; This device comprises: magnet ring and hall device; Described magnet ring places in the rotating shaft of described motor, is used to test the rotation status of described motor; Described hall device places the motor stator place near magnet ring, is used for the square wave that the rotation status of described motor is exported by described hall device is fed back to described control module.
3, rotating base according to claim 2 is characterized in that, described rotary test device comprises: magnet ring and first hall device and second hall device; Described magnet ring places in the rotating shaft of described motor, is used to test the rotation status of described motor; Described first hall device and second hall device are arranged on the motor stator place near magnet ring, be used for the rotation status of described motor is fed back to described control module by the square wave of described first hall device and the output of second hall device respectively, described first hall device and described second hall device are arranged at an angle.
4, rotating base according to claim 3 is characterized in that, described first hall device and second hall device are 90 degree and arrange.
5, according to any described rotating base in the claim 2 to 4, it is characterized in that described magnet ring is provided with the one group of S utmost point and the N utmost point at least.
6, according to any described rotating base in the claim 2 to 4, it is characterized in that described control module is provided with square wave counting unit, be used to store the square wave number of described hall device output.
7, according to any described rotating base in the claim 2 to 4, it is characterized in that, described control module is provided with information process unit, is used for carrying out overall treatment according to the square wave of described hall device and the electric current of described motor-drive circuit feedback.
8, according to any described rotating base in the claim 2 to 4, it is characterized in that described rotary test device also comprises: filter network and comparer; Described filter network, an end links to each other with described hall device, and the other end links to each other with described comparer, is used for the square wave of described hall device output is carried out the filtering of interference wave, and sends it to described comparer; Described comparer, an end links to each other with described filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module.
9, according to any described rotating base in the claim 2 to 4, it is characterized in that described rotary test device also comprises: first filter network, second filter network, first comparer and second comparer; Described first filter network, an end links to each other with described first hall device, and the other end links to each other with described first comparer, is used for the square wave of described first hall device output is carried out the filtering of interference wave, and sends it to described first comparer; Described second filter network, an end links to each other with described second hall device, and the other end links to each other with described second comparer, is used for the square wave of described second hall device output is carried out the filtering of interference wave, and sends it to described second comparer; Described first comparer, an end links to each other with described first filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module; Described second comparer, an end links to each other with described second filter network, and the other end links to each other with described control module, is used for carrying out the square wave shaping to receiving ripple, and the square wave after the shaping is exported to described control module.
10, a kind of display device with described rotating base is characterized in that, described display device comprises: as any described rotating base in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201400340U CN201278114Y (en) | 2008-10-20 | 2008-10-20 | A rotating base and a display equipment having the rotating base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201400340U CN201278114Y (en) | 2008-10-20 | 2008-10-20 | A rotating base and a display equipment having the rotating base |
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| Publication Number | Publication Date |
|---|---|
| CN201278114Y true CN201278114Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201400340U Expired - Fee Related CN201278114Y (en) | 2008-10-20 | 2008-10-20 | A rotating base and a display equipment having the rotating base |
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| CN (1) | CN201278114Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058728A (en) * | 2018-06-04 | 2018-12-21 | 辽宁省交通规划设计院有限责任公司 | Industrial camera pedestal and Tunnel testing vehicle |
-
2008
- 2008-10-20 CN CNU2008201400340U patent/CN201278114Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058728A (en) * | 2018-06-04 | 2018-12-21 | 辽宁省交通规划设计院有限责任公司 | Industrial camera pedestal and Tunnel testing vehicle |
| CN109058728B (en) * | 2018-06-04 | 2024-01-19 | 辽宁省交通规划设计院有限责任公司 | Industrial camera base and tunnel detection vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20121020 |