CN109639184B - Magnetic suspension system for controlling space movement by voice - Google Patents
Magnetic suspension system for controlling space movement by voice Download PDFInfo
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- CN109639184B CN109639184B CN201811589445.2A CN201811589445A CN109639184B CN 109639184 B CN109639184 B CN 109639184B CN 201811589445 A CN201811589445 A CN 201811589445A CN 109639184 B CN109639184 B CN 109639184B
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- magnetic suspension
- constant current
- controller
- driving circuit
- conversion circuit
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- 239000000725 suspension Substances 0.000 title claims abstract description 113
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000001276 controlling effect Effects 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/28—Constructional details of speech recognition systems
- G10L15/30—Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
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- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Control Of Linear Motors (AREA)
Abstract
A magnetic suspension system for controlling space movement by voice is provided with a network server, a controller, a constant current driving circuit, a plurality of paths of magnetic suspension devices and magnetic suspension pieces; the controller is connected with the constant current driving circuit; the controller is provided with an embedded microprocessor, a wifi module, a microphone, an audio power amplifier circuit and a loudspeaker; the constant current driving circuit is provided with a digital-to-analog conversion circuit and a voltage-current conversion circuit, the digital-to-analog conversion circuit is connected with the voltage-current conversion circuit, and the constant current driving circuit is connected with the multi-path magnetic suspension device; the multi-path magnetic suspension device is provided with 4 groups of magnetic suspension modules, and the magnetic suspension modules are provided with large coils and small coils; the center of the magnetic suspension piece is provided with an annular permanent magnet; the controller analyzes the voice password and sends current data to the constant current driving circuit, and the constant current driving circuit outputs a constant current; and driving the multi-path magnetic suspension device and controlling the magnetic field intensity of each coil of the magnetic suspension module, so that the magnetic suspension sheet moves in the multi-path magnetic suspension device and is finally suspended on the target magnetic suspension module.
Description
Technical Field
The invention relates to a magnetic suspension system, in particular to a magnetic suspension system for controlling space movement by voice.
Background
With the development of magnetic suspension technology, various products based on small magnetic suspension, such as magnetic suspension table lamps, are derived. For example, the magnetic suspension device disclosed in chinese patent CN201610329845 adopts a magnetic repulsion type suspension device, the outer layer of the base is a ring magnet generating a fixed magnetic field, and the inner part is a plurality of groups of coils, which can only realize single-group independent closed-loop control in the base, and cannot move from one closed-loop system to another closed-loop control system, and thus, the magnetic suspension device lacks flexibility.
At present, the accuracy rate of voice recognition reaches a higher level, but there is no example of combining magnetic suspension and voice control.
Disclosure of Invention
In view of the above disadvantages, the present invention aims to provide a voice-controlled space movement magnetic suspension system, which can control the movement of a magnetic suspension in space by controlling a constant current source through voice.
The invention is provided with a network server, a controller, a constant current driving circuit, a multi-path magnetic suspension device and a magnetic suspension piece; the controller is connected with the constant current driving circuit; the controller is provided with an embedded microprocessor, a wifi module, a microphone, an audio power amplification circuit and a loudspeaker; the constant current driving circuit is provided with a digital-to-analog conversion circuit and a voltage-current conversion circuit, the digital-to-analog conversion circuit is connected with the voltage-current conversion circuit, and the constant current driving circuit is connected with the multi-path magnetic suspension device and supplies current; the multi-path magnetic suspension device is provided with 4 groups of magnetic suspension modules, and each magnetic suspension module is provided with 1 large coil and at least 4 small coils; an annular permanent magnet is arranged in the center of the magnetic suspension piece; the controller identifies and analyzes the voice password through the network server and sends current data to the constant current driving circuit, and the constant current driving circuit outputs a constant current; and driving the multi-path magnetic suspension device and controlling the magnetic field intensity of each coil of the magnetic suspension module, so that the magnetic suspension sheet moves in the multi-path magnetic suspension device and is finally suspended on the target magnetic suspension module.
The embedded microprocessor of the controller is used as a main control and is connected with the wifi module, the microphone and the audio power amplification circuit; the controller sends the picked up audio signal to the network server through the wifi module and receives the identification result of the network server.
And the network server receives the voice signal sent by the recognition controller and sends the recognition result to the controller.
The digital-to-analog conversion circuit receives the data sent by the controller and outputs a voltage to voltage current conversion circuit.
The data input port of the digital-to-analog conversion circuit can be connected in a multi-chip parallel mode, the chip selection signal input port of the digital-to-analog conversion circuit is led out independently, the embedded microprocessor provides a group of data output ports and a plurality of groups of chip selection output ports, and the digital-to-analog conversion chip is sent selectively through the chip selection ports.
The multi-path magnetic suspension device can be provided with a plurality of magnetic suspension modules, and magnetic suspension sheets can move among the magnetic suspension modules.
The multi-path magnetic suspension device can adopt 4 groups of magnetic suspension modules, wherein 1 group of magnetic suspension modules is provided with a large magnetic field coil providing the direction vertical to the earth center, and at least 4 small coils for regulating and controlling the spatial inclination angle are distributed around the center in an equiangular manner in the large magnetic field coil vertical to the earth center.
The invention has the advantages that:
1) the magnetic suspension module comprises 1 large coil and at least 4 small coils, and the small coils are distributed around the center of the inside of the large coil in an equiangular mode;
2) the large coil is driven by a constant current to provide downward attraction for the magnetic suspension sheet; the small coil is driven by a constant current to provide upward attraction for the magnetic suspension, and the inclination angle of the magnetic suspension is changed by changing the current of the small coil;
3) the current values of the large coil and the small coil of two adjacent magnetic suspension modules in the multi-path magnetic suspension device are changed, so that the magnetic suspension sheets can move from one magnetic suspension module to the other magnetic suspension module.
Drawings
FIG. 1 is a system block diagram of an embodiment of the invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a ring permanent magnet included in the center of a magnetic suspension according to an embodiment of the present invention.
Detailed Description
The following examples will further illustrate the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 3, the embodiment of the invention is provided with a network server 1, a controller, a constant current driving circuit, a multi-path magnetic suspension device 4 and a magnetic suspension plate 5; the controller is connected with the constant current driving circuit; the controller is provided with a wifi module 21, an embedded microprocessor 22, a microphone 23, an audio power amplifier circuit 24 and a loudspeaker 25; the constant current driving circuit is provided with a digital-to-analog conversion circuit 31 and a voltage-current conversion circuit 32, the digital-to-analog conversion circuit 31 is connected with the voltage-current conversion circuit 32, and the constant current driving circuit is connected with the multi-path magnetic suspension device 4 and supplies current; the multi-path magnetic suspension device 4 is provided with 4 groups of magnetic suspension modules 41-44, and each magnetic suspension module is provided with 1 large coil 45 and at least 4 small coils 46; the center of the magnetic suspension 5 is provided with an annular permanent magnet 51; the controller identifies and analyzes the voice command through the network server 1 and sends current data to the constant current driving circuit, the constant current driving circuit outputs constant current to drive the multi-path magnetic suspension device 4 and control the magnetic field intensity of each coil of the 4 groups of magnetic suspension modules 41-44, so that the magnetic suspension plate 5 moves in the multi-path magnetic suspension device 4 and is finally suspended on a target magnetic suspension module.
The embedded microprocessor 22 of the controller is used as a main control and is connected with the wifi module 21, the microphone 23 and the audio power amplifier circuit 24; the controller sends the picked up audio signal to the network server 1 through the wifi module 21 and receives the recognition result of the network server 1.
The network server 1 receives the voice signal sent by the recognition controller and sends the recognition result to the controller.
The digital-to-analog conversion circuit 31 receives data sent by the controller and outputs a voltage-to-voltage-current conversion circuit 32.
The data input port of the digital-to-analog conversion circuit 31 is connected in parallel by a plurality of chips, the chip selection signal input port of the digital-to-analog conversion circuit 31 is led out independently, the embedded microprocessor 22 provides a group of data output ports and a plurality of groups of chip selection output ports, and the digital-to-analog conversion chip is sent by the chip selection port selection.
The multi-path magnetic suspension device 4 is provided with a plurality of magnetic suspension modules, and magnetic suspension sheets can move among the magnetic suspension modules.
The multi-path magnetic suspension device 4 adopts 4 groups of magnetic suspension modules, 1 group of magnetic suspension modules is provided with 1 large coil for providing a magnetic field in the vertical geocentric direction, and at least 4 small coils for regulating and controlling a spatial inclination angle are distributed around the center in an equiangular manner in the large coil for providing the magnetic field in the vertical geocentric direction.
In an initial state, the system is connected with a network through a wifi module, in the multi-path magnetic suspension device, the spatial orientation is that the magnetic suspension module 41 is started, the magnetic suspension is placed in the magnetic suspension module 41, the system adjusts the current of a group of large coils 45 and small coils 46 in the group of magnetic suspension modules, and further adjusts the magnetic field intensity of the magnetic suspension modules, a downward attraction force is generated on the magnetic suspension by a magnetic field generated by the large coils 45, an upward repulsion force is generated on the magnetic suspension by a magnetic field generated by the 4 equiangularly distributed small coils 46, and the magnetic suspension can be kept balanced in the magnetic suspension space.
When a user sends a voice command, the embedded microprocessor picks up the audio through the microphone, the voice is recognized and analyzed through the network server, then the embedded microprocessor 22 sends DAC voltage digital quantity corresponding to each current value to the digital-to-analog conversion circuit, and the digital-to-analog conversion circuit outputs voltage to the voltage-to-current conversion circuit, so that different current values are provided for different coils. And changing the magnetic field intensity corresponding to the coil so as to change the magnetic force of the coil on the magnetic suspension.
When a user sends a voice command to move to the 01 position, according to the target position, the system firstly compares the current position with the current position to obtain the shortest path and the moving times, and then the system knows that the current only needs to move one step towards the longitudinal axis, so that the system can reduce the current of the large coil of the magnetic suspension module 41, improve the height of the magnetic suspension piece, instantaneously improve the current of the 3 small coils 46 below the magnetic suspension module 41, instantaneously reduce the current of the 3 small coils 46 above the magnetic suspension module 41 to generate a thrust towards the longitudinal axis, and push the magnetic suspension piece towards the direction of the magnetic suspension module 42. Meanwhile, the current of the large coil 45 of the magnetic suspension module 42 is increased to generate a downward suction force, the current of the 3 small coils 36 below the magnetic suspension module 42 is gradually increased, so that the magnetic suspension piece falls into the magnetic suspension module without falling to the ground, then the current of the 3 small coils 26 above the magnetic suspension module 42 is increased, and then the current values of the 4 small coils 46 are jointly adjusted, so that the magnetic suspension piece is quickly kept in balance.
And finally, the system broadcasts the position of the space after the space is moved.
Claims (5)
1. A magnetic suspension system for controlling space movement by voice is characterized by being provided with a network server, a controller, a constant current driving circuit, a plurality of paths of magnetic suspension devices and magnetic suspension plates; the controller is connected with the constant current driving circuit; the controller is provided with an embedded microprocessor, a wifi module, a microphone, an audio power amplification circuit and a loudspeaker; the constant current driving circuit is provided with a digital-to-analog conversion circuit and a voltage-current conversion circuit, the digital-to-analog conversion circuit is connected with the voltage-current conversion circuit, and the constant current driving circuit is connected with the multi-path magnetic suspension device and supplies current; the multi-path magnetic suspension device is provided with 4 groups of magnetic suspension modules, and each magnetic suspension module is provided with 1 large coil and at least 4 small coils; an annular permanent magnet is arranged in the center of the magnetic suspension piece; the controller identifies and analyzes the voice command through the network server and sends current data to the constant current driving circuit, the constant current driving circuit outputs a constant current, the constant current drives the multi-path magnetic suspension device to further control the magnetic field intensity of each coil of the magnetic suspension module, so that the magnetic suspension pieces move in the multi-path magnetic suspension device and are finally suspended on the target magnetic suspension module;
the multi-path magnetic suspension device adopts 4 groups of magnetic suspension modules, 1 group of magnetic suspension modules is provided with 1 large coil for providing a magnetic field in the vertical geocentric direction, and at least 4 small coils for regulating and controlling a spatial inclination angle are distributed around the center in an equiangular manner in the large coil for providing the magnetic field in the vertical geocentric direction.
2. The system of claim 1, wherein the embedded microprocessor of the controller is used as a master controller and is connected with a wifi module, a microphone and an audio power amplifier circuit; the controller sends the picked up audio signal to the network server through the wifi module and receives the identification result of the network server.
3. The system of claim 1, wherein the network server receives the voice signal from the recognition controller and sends the recognition result to the controller.
4. The system of claim 1, wherein the digital-to-analog conversion circuit receives data from the controller and outputs a voltage-to-current conversion circuit.
5. The system of claim 1, wherein the digital-to-analog conversion circuit has a plurality of data input ports connected in parallel, a chip select signal input port is independently led out, the embedded microprocessor provides a set of data output ports and a plurality of sets of chip select output ports, and the digital-to-analog conversion chip is selectively transmitted through the chip select output ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589445.2A CN109639184B (en) | 2018-12-25 | 2018-12-25 | Magnetic suspension system for controlling space movement by voice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589445.2A CN109639184B (en) | 2018-12-25 | 2018-12-25 | Magnetic suspension system for controlling space movement by voice |
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| Publication Number | Publication Date |
|---|---|
| CN109639184A CN109639184A (en) | 2019-04-16 |
| CN109639184B true CN109639184B (en) | 2020-06-26 |
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| CN201811589445.2A Active CN109639184B (en) | 2018-12-25 | 2018-12-25 | Magnetic suspension system for controlling space movement by voice |
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| CN113331815A (en) * | 2020-03-02 | 2021-09-03 | 哈尔滨医科大学 | Multi-core radio frequency coil transceiving and ultrasonic array unit synchronous control device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3152775B2 (en) * | 1992-12-07 | 2001-04-03 | 株式会社東芝 | Magnetic levitation device |
| JP3577596B1 (en) * | 2004-03-31 | 2004-10-13 | 株式会社テスラ | Induction repulsion device |
| CN107482955B (en) * | 2017-08-28 | 2019-05-10 | 清华大学 | A kind of the planar motor structure and its thrust calculation method of tandem drive |
| CN108551614A (en) * | 2018-06-25 | 2018-09-18 | 广东工业大学 | A kind of magnetic suspension sound box |
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