CN111446694A - Emergency braking platform and method for driving motor - Google Patents
Emergency braking platform and method for driving motor Download PDFInfo
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- CN111446694A CN111446694A CN201911009479.4A CN201911009479A CN111446694A CN 111446694 A CN111446694 A CN 111446694A CN 201911009479 A CN201911009479 A CN 201911009479A CN 111446694 A CN111446694 A CN 111446694A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/24—Arrangements for stopping
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a driving motor emergency braking platform and a method, wherein the platform comprises: the permanent magnet synchronous motor drives a transmission belt of the crusher to convey materials to be crushed to a crushing mechanism of the crusher through a rotating shaft; the emergency braking equipment executes emergency braking on the permanent magnet synchronous motor when receiving a first trigger instruction, and stops executing the emergency braking on the permanent magnet synchronous motor when receiving a second trigger instruction; and the content identification equipment executes human body target identification on the received merging processing image based on the human body imaging outline, and sends out a first trigger instruction when the human body target is identified, otherwise, sends out a second trigger instruction. The emergency braking platform and the emergency braking method for the driving motor are safe in operation and convenient to operate. Because the human body identification is carried out on the area of the transmission belt in front of the crusher, and when the human body target is identified, the emergency braking is carried out on the permanent magnet synchronous motor which drives the transmission belt, thereby avoiding the occurrence of human casualties.
Description
Technical Field
The invention relates to the field of driving motors, in particular to a driving motor emergency braking platform and a driving motor emergency braking method.
Background
In designing a dc motor driving circuit, the following points are mainly considered in terms of functional design: is the motor rotating in one or two directions? Does not need to adjust speed? For unidirectional motor drive, only one high-power triode or field effect transistor or relay is used for directly driving the motor, and when the motor needs to rotate in two directions, an H-bridge circuit consisting of 4 power elements or a double-pole double-throw relay can be used. If speed regulation is not needed, only a relay is used; if speed regulation is needed, however, switching elements such as a triode, a field effect transistor and the like can be used for realizing PWM (pulse width modulation) speed regulation.
For a motor driving circuit with PWM speed regulation, the following performance indexes are mainly provided. 1) The output current and voltage range, which determines how powerful the circuit can drive a motor. 2) Efficiency, high efficiency not only means power savings, but also reduces heat generation of the drive circuit. To improve the efficiency of the circuit, one can start with ensuring the switching operation state of the power devices and preventing the common-mode conduction (one problem that may occur in an H-bridge or push-pull circuit, that is, two power devices are conducted simultaneously to short-circuit the power supply). 3) Influence on the control input. The power circuit should have good signal isolation to its input, prevent that there is high voltage heavy current to get into the master control circuit, this can realize the isolation with high input impedance or optoelectronic coupler. 4) Impact on the power supply. The common-mode conduction can cause the instantaneous reduction of the power supply voltage to cause high-frequency power supply pollution; large currents may cause the ground potential to float. 5) And (6) reliability. The motor driving circuit should be as safe as possible no matter what kind of control signal is added, and what kind of passive load is added.
Disclosure of Invention
The invention has at least the following two key points:
(1) on the basis of customized image sharpening parameter detection, circularly executing sharpening degree lifting operation on an image based on the sharpening parameter until the sharpening degree of the image is within a preset sharpening degree value range;
(2) and carrying out human body identification on the area of the transmission belt in front of the crusher, and carrying out emergency braking on the permanent magnet synchronous motor driving the transmission belt when a human body target is identified so as to avoid accidents of human casualties.
According to an aspect of the present invention, there is provided a drive motor emergency braking platform, the platform comprising:
the permanent magnet synchronous motor is used for driving a transmission belt of the crusher to convey materials to be crushed to a crushing mechanism of the crusher through a rotating shaft;
the emergency braking equipment is connected with the permanent magnet synchronous motor and used for executing emergency braking on the permanent magnet synchronous motor when receiving a first trigger instruction and stopping executing the emergency braking on the permanent magnet synchronous motor when receiving a second trigger instruction;
the high-definition imaging device is arranged above the conveying belt and close to the crushing mechanism and is used for executing high-definition imaging action on the front area of the crushing mechanism so as to obtain and output a corresponding front area image;
the first extraction equipment is arranged in the instrument box near the permanent magnet synchronous motor, is connected with the high-definition imaging equipment, and is used for executing resolution extraction action on the received front area image so as to obtain the real-time resolution of the front area image;
the second extraction device is connected with the first extraction device and used for receiving the real-time resolution and adjusting the size of an image window for segmenting the front area image according to the numerical value of the real-time resolution, wherein the larger the numerical value of the real-time resolution is, the larger the image window for segmenting is;
the second extraction device also performs segmentation on the front region image according to the image window to obtain respective image regions;
the content comparison device is connected with the second extraction device and is used for executing a fuzziness detection operation on each image area of the received front area image to obtain a corresponding fuzziness grade, comparing the fuzziness grades of the image areas of the front area image to output the image area with the lowest fuzziness grade as a target image area, and the lower the fuzziness grade is, the clearer the image content of the corresponding image area is;
the self-adaptive processing device is connected with the content comparison device and is used for carrying out content identification operation on the target image area to obtain a corresponding sharpening degree and executing the following operations on each image area: and circularly executing a sharpening degree lifting operation on the image area based on the sharpening degree until the sharpening degree of the image area falls within a preset sharpening degree numerical range so as to output a corresponding self-adaptive processing block.
According to another aspect of the present invention, there is also provided a driving motor emergency braking method, which includes using the driving motor emergency braking platform as described above to perform human body recognition on a conveyor belt region in front of a crusher, and performing emergency braking on a permanent magnet synchronous motor driving the conveyor belt when a human body target is recognized, so as to prevent the occurrence of accidents of human casualties.
The emergency braking platform and the emergency braking method for the driving motor are safe in operation and convenient to operate. Because the human body identification is carried out on the area of the transmission belt in front of the crusher, and when the human body target is identified, the emergency braking is carried out on the permanent magnet synchronous motor which drives the transmission belt, thereby avoiding the occurrence of human casualties.
Detailed Description
Embodiments of the drive motor emergency braking platform and method of the present invention will now be described in detail.
The permanent magnet synchronous motor is a synchronous motor which generates a synchronous rotating magnetic field by permanent magnet excitation, the permanent magnet is used as a rotor to generate a rotating magnetic field, and a three-phase stator winding is reacted through an armature under the action of the rotating magnetic field to induce three-phase symmetrical current.
At the moment, the kinetic energy of the rotor is converted into electric energy, and the permanent magnet synchronous motor is used as a generator; in addition, when three-phase symmetrical current is introduced to the stator side, the three-phase stator current generates a rotating magnetic field in the space due to the fact that the phase difference of the three-phase stator is 120 in the space position, the rotor rotates under the action of electromagnetic force to move, electric energy is converted into kinetic energy at the moment, and the permanent magnet synchronous motor serves as a motor.
At present, the crusher can be applied to the extraction of stones in mines, but also to the production and working of plastic raw materials, although its application is not limited to the above mentioned areas. Due to the enormous power of the crusher, once the conveyor belt in front of the crusher is involved in the human body, the consequences are not imaginable, however, no corresponding prevention mechanism exists at present.
In order to overcome the defects, the invention provides the emergency braking platform and the emergency braking method for the driving motor, and the corresponding technical problems can be effectively solved.
The driving motor emergency braking platform according to the embodiment of the invention comprises:
the permanent magnet synchronous motor is used for driving a transmission belt of the crusher to convey materials to be crushed to a crushing mechanism of the crusher through a rotating shaft;
the emergency braking equipment is connected with the permanent magnet synchronous motor and used for executing emergency braking on the permanent magnet synchronous motor when receiving a first trigger instruction and stopping executing the emergency braking on the permanent magnet synchronous motor when receiving a second trigger instruction;
the high-definition imaging device is arranged above the conveying belt and close to the crushing mechanism and is used for executing high-definition imaging action on the front area of the crushing mechanism so as to obtain and output a corresponding front area image;
the first extraction equipment is arranged in the instrument box near the permanent magnet synchronous motor, is connected with the high-definition imaging equipment, and is used for executing resolution extraction action on the received front area image so as to obtain the real-time resolution of the front area image;
the second extraction device is connected with the first extraction device and used for receiving the real-time resolution and adjusting the size of an image window for segmenting the front area image according to the numerical value of the real-time resolution, wherein the larger the numerical value of the real-time resolution is, the larger the image window for segmenting is;
the second extraction device also performs segmentation on the front region image according to the image window to obtain respective image regions;
the content comparison device is connected with the second extraction device and is used for executing a fuzziness detection operation on each image area of the received front area image to obtain a corresponding fuzziness grade, comparing the fuzziness grades of the image areas of the front area image to output the image area with the lowest fuzziness grade as a target image area, and the lower the fuzziness grade is, the clearer the image content of the corresponding image area is;
the self-adaptive processing device is connected with the content comparison device and is used for carrying out content identification operation on the target image area to obtain a corresponding sharpening degree and executing the following operations on each image area: circularly executing a sharpening degree lifting operation on the image area based on the sharpening degree until the sharpening degree of the image area falls within a preset sharpening degree numerical range so as to output corresponding self-adaptive processing blocks;
the image merging device is connected with the self-adaptive processing device and used for receiving each self-adaptive processing block, carrying out signal merging on each self-adaptive processing block to obtain a self-adaptive processing image corresponding to the front area image, and respectively executing image smoothing operation on each block merging position in the self-adaptive processing image to obtain a corresponding merging processing image;
and the content identification equipment is arranged in the instrument box near the permanent magnet synchronous motor, is connected with the image merging equipment, and is used for executing human body target identification on the received merging processing image based on the human body imaging contour, sending a first trigger instruction when the human body target is identified, and sending a second trigger instruction when the human body target is not identified.
Next, a detailed description of the structure of the emergency braking platform of the driving motor according to the present invention will be further described.
In the driving motor emergency braking platform:
in the content recognition device, when an image area with the similarity exceeding the human body imaging contour degree exists, the human body target is determined to be recognized, otherwise, the human body target is determined not to be recognized.
The emergency braking platform for the driving motor can further comprise:
the progressive filtering device is connected with the image merging device and used for receiving the merging processing image and executing the following filtering actions on each line in the merging processing image: and performing wavelet filtering processing on the line and a filtering mode corresponding to the noise amplitude value on the basis of the noise amplitude value in the line and the image content of the preset number of lines below the line to obtain the line of filtered line data.
In the driving motor emergency braking platform:
in the progressive filtering apparatus, the larger the noise amplitude is, the larger the dimension of the wavelet base selected by the wavelet filtering processing of the filtering pattern corresponding to the noise amplitude is.
In the driving motor emergency braking platform:
in the progressive filtering device, performing wavelet filtering processing of a filtering pattern corresponding to the noise amplitude value on the line based on the line and the noise amplitude value in the image content of the line with the following preset number of lines to obtain the line-filtered line data includes: when the number of lines below the line is less than the preset number, performing wavelet filtering processing on the line and a filtering mode corresponding to the noise amplitude value based on the noise amplitude value in the image content of the line and all the remaining lines below the line;
the preset number is selected based on the resolution of the merged image, and the preset number is more than half of the number of lines in the resolution of the merged image.
The emergency braking platform for the driving motor can further comprise:
and the data combination equipment is connected with the progressive filtering equipment and is used for combining the filtered line data of each line in the merging processing image according to the sequence of each line in the merging processing image so as to obtain the progressive filtering image corresponding to the merging processing image.
The emergency braking platform for the driving motor can further comprise:
and the tone enhancement device is respectively connected with the content identification device and the data combination device and is used for receiving the progressive filtering image, executing tone enhancement processing on the progressive filtering image to obtain a corresponding data enhancement image, replacing the merging processing image and sending the data enhancement image to the content identification device.
The emergency braking platform for the driving motor can further comprise:
the PSTN communication equipment is respectively connected with the tone enhancement equipment and the data combination equipment and is used for receiving the progressive filtering image and the data enhancement image and sending the progressive filtering image and the data enhancement image through a PSTN communication link;
the progressive filtering device is internally provided with a RAM storage device and is used for storing the number which is more than half of the number of lines in the resolution of the merging processing image in advance.
Meanwhile, in order to overcome the defects, the invention also provides an emergency braking method of the driving motor, which comprises the steps of using the emergency braking platform of the driving motor to identify the human body in the area of the conveying belt in front of the crusher, and carrying out emergency braking on the permanent magnet synchronous motor driving the conveying belt when the human body target is identified so as to avoid the occurrence of accidents of human casualties.
In addition, the PSTN is simple and flexible in network access, and generally has the following modes:
(1) and accessing the network through a common dial-up telephone line. The Modem is connected to the original telephone line of both communication parties in parallel, and then the Modem is connected to the corresponding internet access device. In 2013, most internet access equipment such as a PC or a router is provided with a plurality of serial ports, and serial interface specifications such as RS-232 and the like are adopted between the serial ports and the Modem. The cost of the connection mode is relatively economic, the charging price is the same as that of the ordinary telephone, and the method is suitable for occasions with infrequent communication.
(2) The network is accessed through a special telephone line. Compared with the conventional dial-up telephone line method, the leased telephone line can provide higher communication rate and data transmission quality, but the corresponding cost is higher than that of the former method. The access mode using the private line is not greatly different from the access mode using the ordinary dial line, but the dial-up connection process is omitted. Generally, when deciding to use the private line mode, the user must apply to the local telecommunication office, which is responsible for the erection and opening.
(3) The access mode of public data exchange network (X.25 or Frame-Relay, etc.) is switched from PSTN to access via ordinary dialing or special telephone line leasing. The use of this approach to achieve a connection to a remote location is a better remote approach because the public switched data network provides users with reliable connection-oriented virtual circuit services that are much more reliable and faster than the PSTN.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A drive motor emergency brake platform, the platform comprising:
the permanent magnet synchronous motor is used for driving a transmission belt of the crusher to convey materials to be crushed to a crushing mechanism of the crusher through a rotating shaft;
the emergency braking equipment is connected with the permanent magnet synchronous motor and used for executing emergency braking on the permanent magnet synchronous motor when receiving a first trigger instruction and stopping executing the emergency braking on the permanent magnet synchronous motor when receiving a second trigger instruction;
the high-definition imaging device is arranged above the conveying belt and close to the crushing mechanism and is used for executing high-definition imaging action on the front area of the crushing mechanism so as to obtain and output a corresponding front area image;
the first extraction equipment is arranged in the instrument box near the permanent magnet synchronous motor, is connected with the high-definition imaging equipment, and is used for executing resolution extraction action on the received front area image so as to obtain the real-time resolution of the front area image;
the second extraction device is connected with the first extraction device and used for receiving the real-time resolution and adjusting the size of an image window for segmenting the front area image according to the numerical value of the real-time resolution, wherein the larger the numerical value of the real-time resolution is, the larger the image window for segmenting is;
the second extraction device also performs segmentation on the front region image according to the image window to obtain respective image regions;
the content comparison device is connected with the second extraction device and is used for executing a fuzziness detection operation on each image area of the received front area image to obtain a corresponding fuzziness grade, comparing the fuzziness grades of the image areas of the front area image to output the image area with the lowest fuzziness grade as a target image area, and the lower the fuzziness grade is, the clearer the image content of the corresponding image area is;
the self-adaptive processing device is connected with the content comparison device and is used for carrying out content identification operation on the target image area to obtain a corresponding sharpening degree and executing the following operations on each image area: circularly executing a sharpening degree lifting operation on the image area based on the sharpening degree until the sharpening degree of the image area falls within a preset sharpening degree numerical range so as to output corresponding self-adaptive processing blocks;
the image merging device is connected with the self-adaptive processing device and used for receiving each self-adaptive processing block, carrying out signal merging on each self-adaptive processing block to obtain a self-adaptive processing image corresponding to the front area image, and respectively executing image smoothing operation on each block merging position in the self-adaptive processing image to obtain a corresponding merging processing image;
and the content identification equipment is arranged in the instrument box near the permanent magnet synchronous motor, is connected with the image merging equipment, and is used for executing human body target identification on the received merging processing image based on the human body imaging contour, sending a first trigger instruction when the human body target is identified, and sending a second trigger instruction when the human body target is not identified.
2. The drive motor emergency brake platform of claim 1, wherein:
in the content recognition device, when an image area with the similarity exceeding the human body imaging contour degree exists, the human body target is determined to be recognized, otherwise, the human body target is determined not to be recognized.
3. The drive motor emergency brake platform of claim 2, further comprising:
the progressive filtering device is connected with the image merging device and used for receiving the merging processing image and executing the following filtering actions on each line in the merging processing image: and performing wavelet filtering processing on the line and a filtering mode corresponding to the noise amplitude value on the basis of the noise amplitude value in the line and the image content of the preset number of lines below the line to obtain the line of filtered line data.
4. The drive motor emergency brake platform of claim 3, wherein:
in the progressive filtering apparatus, the larger the noise amplitude is, the larger the dimension of the wavelet base selected by the wavelet filtering processing of the filtering pattern corresponding to the noise amplitude is.
5. The drive motor emergency brake platform of claim 4, wherein:
in the progressive filtering device, performing wavelet filtering processing of a filtering pattern corresponding to the noise amplitude value on the line based on the line and the noise amplitude value in the image content of the line with the following preset number of lines to obtain the line-filtered line data includes: when the number of lines below the line is less than the preset number, performing wavelet filtering processing on the line and a filtering mode corresponding to the noise amplitude value based on the noise amplitude value in the image content of the line and all the remaining lines below the line;
the preset number is selected based on the resolution of the merged image, and the preset number is more than half of the number of lines in the resolution of the merged image.
6. The drive motor emergency brake platform of claim 5, further comprising:
and the data combination equipment is connected with the progressive filtering equipment and is used for combining the filtered line data of each line in the merging processing image according to the sequence of each line in the merging processing image so as to obtain the progressive filtering image corresponding to the merging processing image.
7. The drive motor emergency brake platform of claim 6, further comprising:
and the tone enhancement device is respectively connected with the content identification device and the data combination device and is used for receiving the progressive filtering image, executing tone enhancement processing on the progressive filtering image to obtain a corresponding data enhancement image, replacing the merging processing image and sending the data enhancement image to the content identification device.
8. The drive motor emergency brake platform of claim 7, further comprising:
the PSTN communication equipment is respectively connected with the tone enhancement equipment and the data combination equipment and is used for receiving the progressive filtering image and the data enhancement image and sending the progressive filtering image and the data enhancement image through a PSTN communication link;
the progressive filtering device is internally provided with a RAM storage device and is used for storing the number which is more than half of the number of lines in the resolution of the merging processing image in advance.
9. A method of emergency braking a drive motor, the method comprising using a drive motor emergency braking platform according to any one of claims 1 to 8 to perform human identification of the area of a conveyor belt in front of a shredder and emergency braking of a pmsm moving the conveyor belt upon identification of a human target to avoid accidents such as human casualties.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911009479.4A CN111446694B (en) | 2019-10-23 | 2019-10-23 | Emergency braking platform and method for driving motor |
| GBGB2015092.6A GB202015092D0 (en) | 2019-10-23 | 2020-09-24 | Driving motor emergency braking platform and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911009479.4A CN111446694B (en) | 2019-10-23 | 2019-10-23 | Emergency braking platform and method for driving motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111446694A true CN111446694A (en) | 2020-07-24 |
| CN111446694B CN111446694B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911009479.4A Active CN111446694B (en) | 2019-10-23 | 2019-10-23 | Emergency braking platform and method for driving motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111446694B (en) |
| GB (1) | GB202015092D0 (en) |
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| US6359399B1 (en) * | 1998-05-05 | 2002-03-19 | Deltron Ltd. | Electronic control system with radio remote control setting of limit stops for motors for the operation of winding devices |
| CN102169614A (en) * | 2011-01-14 | 2011-08-31 | 云南电力试验研究院(集团)有限公司 | Monitoring method for electric power working safety based on image recognition |
| CN103348667A (en) * | 2011-03-31 | 2013-10-09 | 富士胶片株式会社 | Image-capturing device, image-capturing method, and program |
| CN105934774A (en) * | 2014-03-24 | 2016-09-07 | 株式会社日立制作所 | Object detection apparatus, object detection method, and mobile robot |
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| CN108206653A (en) * | 2016-12-19 | 2018-06-26 | 柯尼卡美能达株式会社 | Control device, control method and the image forming apparatus of permanent magnet synchronous motor |
| CN109888873A (en) * | 2019-03-12 | 2019-06-14 | 奥菲(泰州)光电传感技术有限公司 | Charge mode field control system |
| CN109905594A (en) * | 2017-12-07 | 2019-06-18 | 三星电子株式会社 | Method for providing images and electronic device for supporting the method |
-
2019
- 2019-10-23 CN CN201911009479.4A patent/CN111446694B/en active Active
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- 2020-09-24 GB GBGB2015092.6A patent/GB202015092D0/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6359399B1 (en) * | 1998-05-05 | 2002-03-19 | Deltron Ltd. | Electronic control system with radio remote control setting of limit stops for motors for the operation of winding devices |
| CN102169614A (en) * | 2011-01-14 | 2011-08-31 | 云南电力试验研究院(集团)有限公司 | Monitoring method for electric power working safety based on image recognition |
| CN103348667A (en) * | 2011-03-31 | 2013-10-09 | 富士胶片株式会社 | Image-capturing device, image-capturing method, and program |
| CN105934774A (en) * | 2014-03-24 | 2016-09-07 | 株式会社日立制作所 | Object detection apparatus, object detection method, and mobile robot |
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| CN108206653A (en) * | 2016-12-19 | 2018-06-26 | 柯尼卡美能达株式会社 | Control device, control method and the image forming apparatus of permanent magnet synchronous motor |
| CN109905594A (en) * | 2017-12-07 | 2019-06-18 | 三星电子株式会社 | Method for providing images and electronic device for supporting the method |
| CN109888873A (en) * | 2019-03-12 | 2019-06-14 | 奥菲(泰州)光电传感技术有限公司 | Charge mode field control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111446694B (en) | 2021-08-10 |
| GB202015092D0 (en) | 2020-11-11 |
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Effective date of registration: 20210723 Address after: 242047 north side of Shuanghe Road, Liqiao Economic Development Zone, Xuanzhou District, Xuancheng City, Anhui Province Applicant after: XUANCHENG TAILI MAGNETIC INDUSTRY Co.,Ltd. Address before: Room 269, 2nd floor, main building, cultural and creative building, No. 60, Fenghuang East Road, Hailing District, Taizhou City, Jiangsu Province, 225300 Applicant before: AOFEI (TAIZHOU) PHOTOELECTRIC SENSOR TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Drive motor emergency braking platform and method Granted publication date: 20210810 Pledgee: Industrial and Commercial Bank of China Co.,Ltd. Xuancheng Xuanzhou Sub branch Pledgor: XUANCHENG TAILI MAGNETIC INDUSTRY Co.,Ltd. Registration number: Y2024980002169 |
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