CN216118432U - Encoder signal conversion device for motor test - Google Patents
Encoder signal conversion device for motor test Download PDFInfo
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- CN216118432U CN216118432U CN202121994415.7U CN202121994415U CN216118432U CN 216118432 U CN216118432 U CN 216118432U CN 202121994415 U CN202121994415 U CN 202121994415U CN 216118432 U CN216118432 U CN 216118432U
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Abstract
The utility model discloses an encoder signal conversion equipment for motor test, including the ABZ interface that is used for receiving the ABZ signal of encoder output, with ABZ interface connection's difference converter, with MCU that difference converter is connected, with dial switch that MCU is connected and with the signal transmission module that MCU connects, MCU is including having the capture register and right the ABZ signal of difference converter output carries out analytic timer. This neotype beneficial effect lies in: the motor control system has the advantages of multiple signal transmission modes, good flexibility, high precision and low cost, and can improve the stability of the whole motor control system.
Description
Technical Field
The utility model relates to a motor test technical field, concretely relates to encoder signal conversion equipment for motor test.
Background
In the field of motor control, a resolver has been generally used as a mechanical encoder, which can output an analog quantity with a precision of 12 bits as a position quantity of the resolver. The speed controller has the disadvantages that the price is high, and when the speed controller needs to control the speed, the position quantity obtained from the rotary transformer needs to be derived to obtain the speed value, so that the intuitiveness is lacked; the precision is not high, and only the highest 12 bits are available.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to an encoder signal conversion apparatus for testing a motor, which can solve the technical problems involved in the background art.
This neotype technical scheme does:
an encoder signal conversion device for motor testing comprises an ABZ interface for receiving ABZ signals output by an encoder, a differential converter connected with the ABZ interface, an MCU connected with the differential converter, a dial switch connected with the MCU and a signal transmission module connected with the MCU, wherein the MCU comprises a timer which is provided with a capture register and analyzes the ABZ signals output by the differential converter.
As a preferable improvement of the utility model, the system further comprises a power supply connected with the MCU.
As a preferable improvement of the present invention, the MCU further comprises a DAC module and an operational amplifier connected to the DAC module.
As a preferred improvement of the present invention, the encoder is an optical encoder.
As a preferable improvement of the present invention, the signal transmission module includes three signal output modes, namely a 485 output mode, a CAN output mode and an analog signal output mode.
The utility model provides an encoder signal conversion equipment for motor test has following beneficial effect: the motor control system has the advantages of multiple signal transmission modes, good flexibility, high precision and low cost, and can improve the stability of the whole motor control system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of the novel encoder signal conversion device for motor testing.
Detailed Description
The technical solutions in the present novel embodiments will be clearly and completely described below with reference to the present novel embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present novel invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the present embodiment are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in this specification as referring to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific circumstances.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides an encoder signal conversion apparatus 100 for motor testing, including an ABZ interface 2 for receiving an ABZ signal output by an encoder 1, a differential converter 3 connected to the ABZ interface 2, an MCU4 connected to the differential converter 3, a dial switch 5 connected to the MCU4, and a signal transmission module 6 connected to the MCU 4. Specifically, the encoder 1 is a photoelectric encoder, and the signal transmission mode of the encoder is switched in a dialing mode. The ABZ signal includes an A signal, a B signal, and a Z signal.
The signal transmission module 6 includes, but is not limited to, three signal output modes, i.e., a 485 output mode, a CAN output mode, and an analog signal output mode, the MCU4 includes a timer 41 that has a capture register 411 and analyzes the ABZ signal output by the differential converter 3, the capture register 411 stores a value corresponding to the number of revolutions of the encoder 1, specifically, when the encoder 1 rotates one revolution, 2097152 pulses are generated on the a signal and the B signal, 1 pulse is generated on the Z signal, and 8388608 values are changed in the capture register. The MCU4 calculates the position amount and the speed value of the encoder 1 by reading the values in the capture register 411 at regular time, specifically, the MCU4 reads the values in the capture register 411 at regular time, accumulates the values to obtain the position amount of the encoder 1, and calculates the reciprocal of the position amount to obtain the speed value of the encoder 1.
And the dial switch 5 is used for controlling the signal transmission module 6 to switch a proper transmission mode, and outputting the calculated position quantity and speed value to the motor controller 7. The MCU4 also includes a DAC module 42 for analog signal output and an operational amplifier 43 connected to the DAC module 42. Specifically, when the 485 output mode and the CAN output mode output the speed value and the position quantity, the speed value d or the position quantity is directly output in a communication mode; when the analog signal is output, the maximum value of the position quantity and the speed value is quantized to the maximum value of the analog quantity which can be output by the MCU4, and then the maximum value is output by the DAC module 42 and amplified by the operational amplifier 43, so that the output of the analog signal is completed.
The encoder signal conversion device for motor testing further comprises a power supply 8 connected with the MCU4, and the MCU4, the dial switch 5 and the signal transmission module 6 are powered by the power supply 8.
The utility model provides an encoder signal conversion equipment for motor test has following beneficial effect: the motor control system has the advantages of multiple signal transmission modes, good flexibility, high precision and low cost, and can improve the stability of the whole motor control system.
While the present invention has been described with reference to the above embodiments, it is not intended to be limited to the details shown, since various modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. The encoder signal conversion device for motor testing is characterized by comprising an ABZ interface for receiving ABZ signals output by an encoder, a differential converter connected with the ABZ interface, an MCU connected with the differential converter, a dial switch connected with the MCU and a signal transmission module connected with the MCU, wherein the MCU comprises a timer which is provided with a capture register and used for analyzing the ABZ signals output by the differential converter.
2. The encoder signal conversion apparatus for motor testing according to claim 1, wherein: the MCU is connected with the power supply.
3. The encoder signal conversion apparatus for motor testing according to claim 2, wherein: the MCU also comprises a DAC module and an operational amplifier connected with the DAC module.
4. The encoder signal conversion apparatus for motor testing according to claim 1, wherein: the encoder is a photoelectric encoder.
5. An encoder signal conversion apparatus for motor testing according to claim 1 or 4, wherein: the signal transmission module comprises three signal output modes, namely a 485 output mode, a CAN output mode and an analog signal output mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994415.7U CN216118432U (en) | 2021-08-24 | 2021-08-24 | Encoder signal conversion device for motor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994415.7U CN216118432U (en) | 2021-08-24 | 2021-08-24 | Encoder signal conversion device for motor test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216118432U true CN216118432U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121994415.7U Active CN216118432U (en) | 2021-08-24 | 2021-08-24 | Encoder signal conversion device for motor test |
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| Country | Link |
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| CN (1) | CN216118432U (en) |
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2021
- 2021-08-24 CN CN202121994415.7U patent/CN216118432U/en active Active
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Address after: 410205 whole floor, 5th floor, building 1, Otto Science Park, No. 13, Huanlian Road, high tech Development Zone, Changsha, Hunan Patentee after: Changsha chuang'an Electric Co.,Ltd. Address before: 410205 Room 202, building 9, phase I, Changsha Zhongdian Software Park, No. 39, Jianshan Road, high tech Development Zone, Changsha, Hunan Patentee before: Hunan wanxinruikong Intelligent Technology Co.,Ltd. |
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