CN208092474U - Three phase electric machine control device - Google Patents

Abstract

This application provides a kind of three phase electric machine control devices, three phase electric machine, which is located on rotatable part, to be realized clockwise or counterclockwise, wherein, it is communicated to connect between ARM controlling unit and control system, the rotation control unit of FPGA unit and three phase electric machine communicates to connect, the rotation of the rotation control unit control rotatable part of three phase electric machine, sensor is located at three phase electric machine initial position whether to sense three phase electric machine in initial position, and is communicated to connect with ARM unit.Compared with prior art compared with, the technical solution of the application, may be implemented it is a kind of it is more practical, accurately find three phase electric machine initial position, a kind of method that three phase electric machine initial position is found in this automatic teller machine has many advantages, such as that strong antijamming capability, transplantability are strong, accuracy is high.A kind of method that three phase electric machine initial position is found in automatic teller machine provided by the present application has a good application prospect in financial field.

Description

Three phase electric machine control device

Technical field

This application involves a kind of technologies more particularly to one of relevant issues caused by solution ATM machine banknote locations inaccuracy Kind three phase electric machine control device.

Background technology

Cash teller machine, i.e. ATM (ATM) refer to that a kind of small machines, ATM profits is arranged in different location in bank With the basic household data (being usually exactly bank card) of the magnetic recording client on the glue card of a credit card-sized, allow client can The bank counters service such as to be withdrawn deposit, deposit, transfer accounts through machine.

Since two thousand, the total ownership of Chinese ATM machine is just grown at top speed with 24.62% annual average compound growth rate. By the end of the year 2010, China's networking ATM machine ownership has reached 27.10 ten thousand, increases by 26.11% on a year-on-year basis, substitution Japan at For the markets world's second largest ATM, after coming the U.S..

In current cash teller machine's system, often will appear banknote tilt and banknote block the case where, problems There are many reason of appearance, learn by analysis, and what three phase electric machine initial position was found in teller machine (ATM) system is inaccurately such The key reason of problem.In order to make teller machine (ATM) system more stablize, the accurate initial position for finding out three phase electric machine is must can not Few.

Utility model content

Inaccurate problem is found for three phase electric machine initial position in current automatic teller machine, this application provides one kind can Automatic teller machine three phase electric machine is facilitated to search the three phase electric machine control device of initial position.

Herein described three phase electric machine control device, including ARM controlling unit, control system, sensor, three-phase electricity Machine, the three phase electric machine, which is located on rotatable part, to be realized clockwise or counterclockwise, wherein ARM controlling unit and FPGA It is communicated to connect between control unit, the rotation control unit communication connection of FPGA unit and three phase electric machine, the rotation of three phase electric machine Control unit controls the rotation of rotatable part, and the sensor is located at three phase electric machine initial position whether to sense three phase electric machine It is communicated to connect in initial position, and with ARM unit.

In an advantageous embodiment, ARM controlling unit to control system send instruct, FPGA control units to The rotation control unit of three phase electric machine sends instruction, and sensing signal is sent to ARM control units by sensor.

In an advantageous embodiment, the sensor is U-shaped sensor, including U-type groove, and U-type groove both sides are respectively to send out Penetrate end and receiving terminal.

In an advantageous embodiment, logical by data line and address wire between ARM controlling unit and control system Letter connection.

Wherein, it is highly preferred that the data line is 16.

Wherein, it is highly preferred that described address line is 8.

In an advantageous embodiment, the ARM controlling unit is sent to FPGA by address wire and is instructed.

In an advantageous embodiment, the three phase electric machine quantity can be one or more.

In an advantageous embodiment, the three phase electric machine is stepper motor, preferably 48 stepper motors step by step.

In an advantageous embodiment, the three phase electric machine is equipped with catch, and in three phase electric machine initial position, catch is inserted into U Position in the U-type groove of type sensor between transmitting terminal and receiving terminal.

In an advantageous embodiment, the three phase electric machine control device further includes positioning device, for detecting three-phase electricity Whether machine rotates a circle.

In more preferred embodiment, the positioning device is communicated to connect with ARM controlling unit.

In an advantageous embodiment, the three phase electric machine control device further includes warning device, the warning device with ARM controlling unit communicates to connect.

In an advantageous embodiment, the sensor is communicated to connect by CD4051 chips and ARM controlling unit.It is more excellent Selection of land, CD4051 chip outputs are communicated to connect with ARM controlling unit, and the AD collection terminals of CD4051 chips and the biography Sensor communicates to connect.

In an advantageous embodiment, the three phase electric machine control device further includes power supply unit, the power supply unit with One or more of the rotation control unit electrical connection of ARM controlling unit, control system, sensor, three phase electric machine.

It is highly preferred that the power supply unit is also electrically connected with CD4051 chips.

In an advantageous embodiment, the power supply unit includes general supply and voltage conversion chip, general supply electrical connection The input terminal of voltage conversion chip.

It is highly preferred that general supply is 24V Switching Power Supplies.

It is highly preferred that the voltage of general supply is converted into any one or a few in 5V, 3.3V by voltage conversion chip.

In an advantageous embodiment, the three phase electric machine is rotated with the period of every step 2.5ms.

In an advantageous embodiment, the sensor is to detect three phase electric machine in initial bit in high level It sets.In more preferred embodiment, the high level maintains 600us to be determined as high level.

Compared with prior art compared with, the technical solution of the application, may be implemented it is a kind of it is more practical, accurately find three Phase motor initial position, a kind of method that three phase electric machine initial position is found in this automatic teller machine have strong antijamming capability, transplanting The advantages that property is strong, accuracy is high.A kind of method that three phase electric machine initial position is found in automatic teller machine provided by the present application is in finance Field has a good application prospect.

Description of the drawings

Fig. 1 is the application three phase electric machine control device principle assumption diagram.

Specific implementation mode

Referring to Fig.1, the application three phase electric machine control device includes：ARM controlling unit 1, control system 2, sensor 3, three phase electric machine 4 and power supply 5.

ARM controlling unit 1, is connected with control system, and the two is communicated using the RAM cores of shared FPGA (wherein data line 16, address wire 8), main function in this application：First, looking for three-phase to control system transmission Motor initial position instructs；Second, carrying out AD samplings by CD4051, sensor states are judged by sampled value.

Control system 2, is connected with ARM controlling unit, main function：First, receiving what ARM control units were sent Look for the order of three phase electric machine initial position；Second, the order that processing ARM controlling unit is sent, and then three phase electric machine action is allowed to seek Initial position is looked for, if encountering abnormal conditions, control system then sends out the instruction that reports an error to ARM controlling unit.

Power module 5 is respectively connected with each unit of the application, and main function is powered to whole system, general supply It is 24V Switching Power Supplies, is converted into 5V, 3.3V respectively by voltage conversion chip and powers for various pieces.

Three phase electric machine 4, is connected with control system, and what three phase electric machine was selected is 48 Walk stepper motors of customization.Mainly Effect：First, finding the initial position of turnover panel；Second, turnover panel can be turned to three directions by three phase electric machine rotation, and then can be with Banknote can be transmitted there are three channel.Three phase electric machine is located on rotatable part, so as in the manipulation of rotation control unit Lower progress is clockwise or counterclockwise.

Sensor 3, be located at three phase electric machine initial position on, respectively with 2 phase of ARM controlling unit 1 and FPGA control units Even, main function：First, according to the state of sensor, the initial position of three phase electric machine can be found；Second, ARM controlling unit 1 by the state of U-shaped sensor, it is known that whether three phase electric machine finds initial position.Sensor uses U-shaped sensor, U-shaped Slot both sides are respectively transmitting terminal and receiving terminal, and when three phase electric machine returns initial position, three phase electric machine catch is by transmitting terminal and connects Signal transmission path blocking between receiving end, to which U-shaped sensor senses whether three phase electric machine returns initial position, U-shaped biography Sensor is blocked, and the state of S101U-OUT is height, because there is also the feelings of high level when the state of S101U-OUT is low Condition, so the application, which is only high maintenance 600us or more in the state of S101U-OUT, can just be determined as high (state in the application For high maintenance 1ms, then it is assumed that sensor is blocked, namely has found initial position).For this purpose, CD4051 cores are arranged in the application Piece, CD4051 chips carry out AD samplings to sensor, gathered data are sent to ARM controlling unit.

Herein described three phase electric machine control device can accurately find the initial position of three phase electric machine, and specific method is such as Under：

ARM controlling unit 1 sends the instruction for looking for 4 initial position of three phase electric machine, FPGA controls to control system 2 first When receiving the initial position order for finding three phase electric machine 4, three phase electric machine 4 is first carried out with the period of every step 2.5ms suitable unit 2 Hour hands rotate, and U-shaped sensor is blocked when returning initial position, and ARM controlling unit is sentenced according to the signal that CD4051 chips are sent Disconnected to find initial position, notice control system 2 is stopped and remains waiting for task, is much to seek if having rotated a circle Initial position is then rotated with the period of every step 2.5ms counterclockwise, and when finding initial position, control system 2 also stops It works and maintains waiting task, be much to seek initial position if revolving to turn around counterclockwise, it is possible to which U-shaped sensor has event Barrier, control system 2 then send out the instruction that reports an error to ARM controlling unit 1.

The specific embodiment of the application is described in detail above, but it is intended only as example, the application is simultaneously unlimited It is formed on particular embodiments described above.To those skilled in the art, it is any to the application carry out equivalent modifications and It substitutes also all among the scope of the application.Therefore, in the case where not departing from spirit and scope made by impartial conversion and Modification, should all cover within the scope of application.

Claims (10)

1. a kind of three phase electric machine control device, which is characterized in that including ARM controlling unit, control system, sensor, three Phase motor, the three phase electric machine, which is located on rotatable part, to be realized clockwise or counterclockwise, wherein ARM controlling unit with It is communicated to connect between control system, the rotation control unit communication connection of FPGA unit and three phase electric machine, three phase electric machine Rotation control unit controls the rotation of rotatable part, and the sensor is located at three phase electric machine initial position to sense three phase electric machine Whether in initial position, and communicated to connect with ARM unit.

2. three phase electric machine control device according to claim 1, which is characterized in that the sensor is U-shaped sensor, packet U-type groove is included, U-type groove both sides are respectively transmitting terminal and receiving terminal.

3. three phase electric machine control device according to claim 2, which is characterized in that the three phase electric machine is equipped with catch, Three phase electric machine initial position, catch are inserted into the position between transmitting terminal and receiving terminal in the U-type groove of U-shaped sensor.

4. three phase electric machine control device according to claim 1, which is characterized in that ARM controlling unit and FPGA controls are single It is communicated to connect by data line and address wire between member.

5. three phase electric machine control device according to claim 4, which is characterized in that the ARM controlling unit passes through address Line sends to FPGA and instructs.

6. three phase electric machine control device according to claim 1, which is characterized in that the three phase electric machine control device also wraps Positioning device is included, for detecting whether three phase electric machine rotates a circle.

7. three phase electric machine control device according to claim 1, which is characterized in that the sensor passes through CD4051 chips It is communicated to connect with ARM controlling unit.

8. three phase electric machine control device according to claim 1, which is characterized in that the three phase electric machine control device also wraps Power supply unit is included, the rotation control of the power supply unit and ARM controlling unit, control system, sensor, three phase electric machine is single One or more of member is electrically connected.

9. three phase electric machine control device according to claim 8, which is characterized in that the power supply unit include general supply and Voltage conversion chip, general supply are electrically connected the input terminal of voltage conversion chip.

10. three phase electric machine control device according to claim 1, which is characterized in that the three phase electric machine control device is also Including warning device, the warning device is communicated to connect with ARM controlling unit.