CN117191091A - Magnetic encoder, motor, elevator door motor and control device thereof - Google Patents
Magnetic encoder, motor, elevator door motor and control device thereof Download PDFInfo
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- CN117191091A CN117191091A CN202311148928.XA CN202311148928A CN117191091A CN 117191091 A CN117191091 A CN 117191091A CN 202311148928 A CN202311148928 A CN 202311148928A CN 117191091 A CN117191091 A CN 117191091A
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Abstract
The application discloses a magnetic encoder, a motor, an elevator door motor and a control device thereof. The magnetic encoder includes: a magnetic induction component capable of sensing magnetic field information, the magnetic induction component being configured to: forming a corresponding encoder value; a control unit having a storage medium; the storage medium is stored with magnetic pole zero information in a nonvolatile way; the control unit is used for: calculating and outputting corresponding angle control information according to the magnetic pole zero position information and the encoder value; wherein the pole zero information is predetermined data. The system does not need on-site personnel to carry out debugging operation, effectively improves the efficiency, and avoids a series of personal safety and mechanical accidents caused by improper debugging operation.
Description
Technical Field
The application relates to the technical field of elevator control, in particular to a magnetic encoder, a motor, an elevator door motor and a control device thereof.
Background
The magnetic encoder is an encoder which uses magnetic induction technology, reads magnetic field information mounted on a motor rotating part by a magnetic chip, and outputs relevant position and speed or angle information after processing. Compared with the traditional encoder, the encoder has the advantages of light and thin appearance, low price and the like, and is widely applied to the fields of elevator door motor control and the like.
In existing elevator door machines, however, the pole angle of the motor is typically recorded in the door machine controller. Before field use, the pole positioning of the door machine is needed first, and the pole angle of the motor is recorded in the door machine controller to provide accurate position information. Otherwise, the door machine controller cannot perform accurate synchronous motor control, so that the risk of galloping and the like is caused.
Such field pole positioning operations require experienced commissioning personnel to perform, resulting in reduced efficiency and susceptibility to personal safety and mechanical accidents. Thus, there is an urgent need to provide a magnetic encoder capable of achieving adaptive pole positioning.
Disclosure of Invention
The embodiment of the application provides a magnetic encoder, a motor, an elevator door motor and a control device thereof, and aims to solve the defect that a debugging personnel is required to manually perform magnetic pole positioning operation in the existing magnetic encoder.
In a first aspect, embodiments of the present application provide a magnetic encoder. The magnetic encoder includes: a magnetic induction component capable of sensing magnetic field information, the magnetic induction component being configured to: forming a corresponding encoder value; a control unit having a storage medium; the storage medium is stored with magnetic pole zero information in a nonvolatile way; the control unit is used for: calculating and outputting corresponding angle control information according to the magnetic pole zero position information and the encoder value; wherein the pole zero information is predetermined data.
In some embodiments, the control component is a digital signal processing chip in communication with the magnetic induction component.
In some embodiments, the magnetic induction component is in communication connection with the digital signal processing chip through an SPI interface, and the encoder value is provided to the digital signal processing chip.
In some embodiments, the digital signal processing chip is further provided with at least one 485 interface; the 485 interface is used for outputting the angle control information.
In some embodiments, the pole zero information is determined by: controlling the motor to be locked at the U-phase position; acquiring a first encoder value of the magnetic induction component as the magnetic pole zero information; recording the pole zero information into the storage medium.
In some embodiments, the calculating and outputting corresponding angle control information according to the magnetic pole zero information and the encoder value specifically includes: acquiring a current second encoder value of the magnetic induction component; reading magnetic pole zero information recorded in the storage space; subtracting the magnetic pole zero information from the second encoder value to obtain corresponding angle control information; and outputting the angle control information.
In some embodiments, the encoder values vary with the magnetic field information; one of the encoder values corresponds to a rotation angle of one of the motors.
In a second aspect, embodiments of the present application provide an electric motor. The motor includes: a motor body; and a magnetic encoder as described above.
In a third aspect, an embodiment of the present application provides a control device for an elevator door machine. The control device includes: a door operator controller; a magnetic encoder as described above; the magnetic encoder is in communication connection with the door machine controller and is used for providing the angle control information for the door machine controller.
In a fourth aspect, an embodiment of the present application provides an elevator door machine. The elevator door machine comprises: a motor for driving the elevator door to act; a magnetic encoder as described above; and a door operator controller for: the motor is controlled to rotate by the angle control information provided by the magnetic encoder.
At least one beneficial effect of the application is that: the magnetic encoder provides a storage medium for storing predetermined magnetic pole zero information, which can ensure that the magnetic pole angle of each motor is kept at 0 degree, and self-tuning is realized. When the device is used, on-site personnel are not required to carry out debugging operation, the efficiency is effectively improved, and a series of personal safety and mechanical accidents are avoided.
Drawings
FIG. 1 is a schematic diagram of a typical magnetic encoder;
FIG. 2 is a schematic diagram of a magnetic encoder of an embodiment of the present application;
FIG. 3 is a flow chart of a method of determining pole zero information in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram of the operation of a magnetic encoder according to an embodiment of the present application.
Detailed Description
In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the application described below can be combined with one another as long as they do not conflict with one another.
In a conventional elevator door machine control scheme, as shown in fig. 1, a magnetic induction chip 1 generally transmits corresponding encoder data to a door machine controller through a data transmission interface 2 arranged based on perceived magnetic field information change. The rotation of the motor is then controlled by the door operator controller in response to this, causing it to drag the elevator to the correct position.
In the actual use process, in order to ensure accurate control of the synchronous motor, the door machine controller needs to be based on the magnetic pole zero position of the magnetic induction chip. Due to the influence of factors such as actual sales, the door machine controller cannot realize one-to-one binding corresponding relation with the motor. Therefore, prior to field use, it is necessary to operate by specialized commissioning personnel to determine the specific pole zero position for the door operator controller.
In the process of realizing the application, the applicant finds that the debugging operation for the magnetic pole zero position can be overcome by adding an additional control component in the magnetic induction chip, so that the magnetic induction chip can be matched with a motor, and angle control information required by a door machine controller can be directly provided.
Fig. 2 is a schematic structural diagram of a magnetic encoder according to an embodiment of the present application. As shown in fig. 2, the magnetic encoder includes: magnetic induction component 10 and control component 20.
The magnetic induction component 10 is a component that can sense magnetic field information. Which can form corresponding encoder values based on changes in magnetic field information caused by the rotating parts of the motor. Such as the magnetic induction chip described above. In particular, the encoder value is a data information that varies with the magnetic field information. In other words, each encoder value corresponds to the rotational angle of one motor and may represent the current rotational position of the motor rotor.
The control section 20 is an integrated section having a storage medium and data processing capability. Wherein the storage medium has pole zero information stored therein in a nonvolatile manner. Based on the stored magnetic pole zero information, the control unit 20 can calculate and directly output corresponding angle control information according to the magnetic pole zero information and the encoder value, and provide the angle control information to the door machine controller.
Specifically, the magnetic pole zero information is predetermined data, which can be determined before shipment and recorded in a storage medium. Fig. 3 is a flowchart of a method for determining magnetic pole zero information according to an embodiment of the present application. As shown in fig. 3, the method includes:
s310, controlling the motor to be locked at the U-phase position.
Before leaving the factory, the magnetic pole positioning operation can be executed through the door machine controller for testing, and the motor is locked at the U-phase position.
S320, acquiring a first encoder value of the magnetic induction component as magnetic pole zero information.
The first encoder value refers to the encoder value of the magnetic induction component corresponding to the motor during the magnetic pole positioning operation.
S330, recording magnetic pole zero position information into the storage medium.
Wherein the first encoder value as pole zero information may be stored in any suitable form in the storage medium for subsequent recall.
In some embodiments, the control component 20 may optionally use a digital signal processing chip (Digital Signal Processor, DSP). The digital signal processing chip is an application specific integrated circuit chip and is mainly used for processing and calculating digital signals. It has the characteristics of high performance, high speed and high efficiency. The method has rich digital signal processing algorithm library and hardware instruction support, so that a developer can quickly realize complex digital signal processing functions. In addition, the DSP chip has lower delay and real-time response capability, and can meet the requirement of real-time data processing.
Specifically, referring to fig. 2, the magnetic induction component 10 and the digital signal processing chip 20 may be communicatively connected through an SPI interface, and the magnetic induction component 10 provides the digital signal processing chip 20 with a corresponding encoder value.
In addition, the digital signal processing chip 20 is further provided with at least one 485 interface 30. The 485 interface may be coupled to the door operator controller for providing angle control information to the door operator controller.
FIG. 4 is a flow chart of a method of a magnetic encoder according to an embodiment of the present application during actual operation.
As shown in fig. 4, the operation of the magnetic encoder includes the steps of:
s410, acquiring the current second encoder value of the magnetic induction component.
The second encoder value refers to the encoder value provided by the magnetic induction component or a real-time sampling result in the actual using process of the elevator door motor.
S420, reading magnetic pole zero position information recorded in the storage space.
S430, subtracting the magnetic pole zero position information from the second encoder value to obtain corresponding angle control information.
The angle control information refers to an electric angle required by motor control, and the door machine controller can rotate the motor to a target position according to the angle control information.
S440, outputting angle control information.
Therefore, the door machine controller can directly control the accurate position of the motor according to the provided angle control information, so that the motor is positioned at the correct rotation position.
The embodiment of the application also provides a motor. The motor includes: a motor body; and a magnetic encoder as described above. The motor body and the magnetic encoder are correspondingly arranged, so that the magnetic encoder can directly provide angle control information, and additional field debugging work is not needed.
The embodiment of the application also provides a control device of the elevator door machine. The control device includes: a door operator controller and a magnetic encoder as described above. The magnetic encoder and the door machine controller can be in communication connection through ports such as 485 interfaces, so that angle control information is provided for the door machine controller. One or more different motor pole zero information may be stored in the magnetic encoder to facilitate user selection based on the particular motor model in use.
The embodiment of the application also provides an elevator door machine. The elevator door machine comprises: a motor for driving the elevator door to act, a magnetic encoder and a door machine controller. Wherein, the door machine controller controls the motor to rotate through the angle control information provided by the magnetic encoder.
Based on the magnetic encoder with the DSP chip, the door machine controller does not need to carry out relevant field debugging work before use, can directly realize the control of the motor, effectively avoids the occurrence of risk accidents such as galloping caused by debugging work errors, and has good use experience and application prospect.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.
Claims (10)
1. A magnetic encoder, comprising:
a magnetic induction component capable of sensing magnetic field information, the magnetic induction component being configured to: forming a corresponding encoder value;
a control unit having a storage medium; the storage medium is stored with magnetic pole zero information in a nonvolatile way; the control unit is used for: calculating and outputting corresponding angle control information according to the magnetic pole zero position information and the encoder value;
wherein the pole zero information is predetermined data.
2. The magnetic encoder of claim 1, wherein the control component is a digital signal processing chip in communication with the magnetic induction component.
3. The magnetic encoder of claim 2, wherein the magnetic induction component is communicatively coupled to the digital signal processing chip via an SPI interface to provide the encoder value to the digital signal processing chip.
4. The magnetic encoder of claim 2, wherein the digital signal processing chip is further provided with at least one 485 interface; the 485 interface is used for outputting the angle control information.
5. The magnetic encoder of claim 1, wherein the pole zero information is determined by:
controlling the motor to be locked at the U-phase position;
acquiring a first encoder value of the magnetic induction component as the magnetic pole zero information;
recording the pole zero information into the storage medium.
6. The magnetic encoder of claim 1, wherein the calculating and outputting corresponding angle control information based on the pole zero information and encoder values comprises:
acquiring a current second encoder value of the magnetic induction component;
reading magnetic pole zero information recorded in the storage space;
subtracting the magnetic pole zero information from the second encoder value to obtain corresponding angle control information;
and outputting the angle control information.
7. The magnetic encoder of claim 1, wherein the encoder value varies in accordance with the magnetic field information; one of the encoder values corresponds to a rotation angle of one of the motors.
8. An electric motor, comprising:
a motor body; and
a magnetic encoder as in any of claims 1-7.
9. A control device for an elevator door machine, comprising:
a door operator controller; and
a magnetic encoder as claimed in any one of claims 1 to 7;
the magnetic encoder is in communication connection with the door machine controller and is used for providing the angle control information for the door machine controller.
10. An elevator door machine, comprising:
a motor for driving the elevator door to act;
a magnetic encoder as claimed in any one of claims 1 to 7; and
the door machine controller is used for: the motor is controlled to rotate by the angle control information provided by the magnetic encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311148928.XA CN117191091A (en) | 2023-09-06 | 2023-09-06 | Magnetic encoder, motor, elevator door motor and control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311148928.XA CN117191091A (en) | 2023-09-06 | 2023-09-06 | Magnetic encoder, motor, elevator door motor and control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117191091A true CN117191091A (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311148928.XA Pending CN117191091A (en) | 2023-09-06 | 2023-09-06 | Magnetic encoder, motor, elevator door motor and control device thereof |
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| Country | Link |
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| CN (1) | CN117191091A (en) |
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- 2023-09-06 CN CN202311148928.XA patent/CN117191091A/en active Pending
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