CN100468476C

CN100468476C - Real-time measure system for motor driver

Info

Publication number: CN100468476C
Application number: CNB2005100525104A
Authority: CN
Inventors: 吴家明
Original assignee: Delta Optoelectronics Inc
Current assignee: Taida Electronic Industry Co Ltd; Delta Optoelectronics Inc
Priority date: 2005-02-28
Filing date: 2005-02-28
Publication date: 2009-03-11
Anticipated expiration: 2025-02-28
Also published as: CN1828684A

Abstract

The related system comprises a DSP to digitalize the motor running data and output measured data, a connected interface circuit to receive DSP data, a connected conversion device to convert the first signal into the second signal for the second communication port, and a terminal processor to analyze, process and display the measured data for real-time and continual measurement.

Description

The real-time measurement system of motor driver

Technical field

The present invention relates to a kind of real-time measurement system, be applied to measure the operational data of motor driver, relate in particular to a kind of real-time measurement system of motor driver.

Background technology

In recent years, great amount of manpower and material resources, time and money had all been dropped into to the research of motor in countries in the world, and hope can improve the industrial technology level whereby, made to be widely used in robotization industry, manufacture of semiconductor, machine tool, carrying etc.The control of motor can be subjected to the limit of power electronics assembly switch switch speed in the motor driver and computer microprocessor arithmetic speed, and can't have breakthrough in total system control, therefore the technical bottleneck that runs into.10 years up to date, the development apace of semiconductor industry, the breakthrough of power electronics on high-power, make and to promote the large capacity motor easier realization that becomes, except the volume of motor driver becomes littler, performance is better, outside efficient improves, more because the computing of computer microprocessor is more and more quicker, and the reaching its maturity of single chip microcomputer application technology, the deal with data amount is also increasing, make many control theories be achieved, each academia and research unit are all actively to the research of motor driver input at present, and the research of its perimeter systems of motor driver is important especially.

In the use, motor apparatus and motor driver need to adjust the partial parameters of motor driver, for example electric current and voltage, or its rotating speed for reaching some work purpose ... etc.In order to adjust the convenience of parameter, process at the design motor driver, the measure physical quantities of motor driver can be exported in the mode of analog or digital, modal is that output is connect on the oscillograph with terminal, is used for supervising the running situation of motor and learns whether whole motor system reaches the job requirement desiring to reach.

Please refer to Fig. 1, be the measuring system of known first motor driver.Have a motor driver 10 to connect a motor apparatus 20, the outputting data signals of motor driver 10 is connected on the oscillograph 30, shows the operation situation of motor driver 10 on oscillograph 30.Motor driver 10 provides the simulation terminal, the user can inspect output signal by oscillograph 30, understand motor driver 10 and in running, whether the situation about setting that reaches is arranged, yet, oscillograph 30 is the industrial device of a costliness, and in operation, also need to study in depth, the more important thing is that suitable heaviness of oscillograph 30 builds and inside are quite accurate, and be not suitable for being used in widely doing in the general factory to measure and use.

Refer again to Fig. 2, be the measuring system of known second motor driver.In the measuring system of this motor driver, there is a motor driver 11 to connect a motor apparatus 21, the output data of motor driver 11 is connected on the computer installation 41 by a serial communication port (RS232) 31, send a trigger pip to give motor driver 11 by computer installation 41, program in the motor driver 11 begins to grasp data information, and exist in the temporary storage 51, by the time temporary storage 51 has been filled with, send one by computer installation 41 again and check order, beginning is by motor driver 11 returned data data, because the speed of COM port 31 is 115200bit/s, and data information needs first store data in temporary storage 51, so the time of passing back can postpone (delay) to some extent, make measured data information lose the effect of real-time.

Summary of the invention

Therefore, how can provide the motor driver measuring system of a kind of tool real-time and practicality, and return data to a treating apparatus, become one of problem of researchist's improvement to be solved with transmission mode faster.

Because defective and insurmountable problem that prior art exists, the present invention proposes a kind of real-time measurement system of motor driver, include a digital signal processor (Digital Signal Processor:DSP), the operational data of digitizing motor driver, and export measured data; One interface circuit connects this digital signal processor, receives the measurement data by this digital signal processor output; One conversion equipment is connected in this interface circuit, and first conversion of signals that will meet first PORT COM is the secondary signal that meets second PORT COM; Last measurement data enters in the terminal processes device, the terminal processes device will import measurement data with a programmatic interface analyzing and processing and show synchronously this measurement data, this terminal processes device has a window interface, and when this terminal processes device is found the data information decoding error of reception, can on window interface, indicate wrong data point, and continue to show the next record data information.Reach the effect of synchro measure motor driver thus, and measurement data need not use oscillograph to show, more can make the real-time measurement system of motor driver of the present invention have more practicality.Relevant characteristics and implementation of the present invention, conjunction with figs. is described in detail as follows as most preferred embodiment now.

Description of drawings

Fig. 1 is the measuring system of known first motor driver;

Fig. 2 is the measuring system of known second motor driver;

Fig. 3 is the real-time measurement system of first motor driver of the present invention;

Fig. 4 is the real-time measurement system of second motor driver of the present invention; And

Fig. 5 measures process flow diagram in real time for the multiaxis of motor driver of the present invention.

Wherein, description of reference numerals is as follows:

10 motor drivers, 11 motor drivers

20 motor apparatus, 21 motor apparatus

30 oscillographs, 31 COM port

41 computer installations, 51 temporary storages

100 motor drivers, 150 motor apparatus

200 digital signal processors, 300 interface circuits

350 high speed serial communication ports, 400 conversion equipments

450 USB (universal serial bus), 500 terminal processes devices

510 USB (universal serial bus) slots, 550 connecting lines

600 window interfaces

Step 501 terminal processes device detects with motor driver online

Step 502 terminal processes device utilizes the initial time of motor driver to each, with the time of each synchronous automatically

Step 503 terminal processes device receives the synchronous measurement data of multiaxis that motor driver is passed back

Step 504 is shown in measurement data on the window interface

Sign makes mistake on the step 505 window interface picture

Embodiment

Please refer to Fig. 3, it is the real-time measurement system of motor driver of the present invention, include a digital signal processor 300, one conversion equipments 400 of (Digital Signal Processor:DSP) 200 and one interface circuit and a terminal processes device 500.

The motor driver 100 that wherein has a quilt to measure in real time, motor driver 100 is an alternating current motor driver, control a motor apparatus 150 in sine wave pulse width (the Pulse Width Modulation:PWM) mode of regulating, motor driver 100 has a plurality of function keys (not drawing) on it, with a display (not drawing), can provide the user to set motor apparatus 150 operating frequencys, the output frequency that shows actual motor device 150, the output current of actual motor device 150, the user unit of making by oneself parameter is browsed, revise and set, parameter locking, abnormal failure show and carry out turns round, stop, reset, just change, counter-rotating, adjusting microinching ... etc. function.

A digital signal processor (Digital Signal Processor:DSP) 200 is arranged in motor driver 100 inside, be responsible for digitizing motor driver 100 parameter that sets and the real data that is operated, and export measured measurement data, measurement data is a digital signal, therefore in the process of propagating than had more the advantage that is not subject to disturb with the simulating signal transmission in the past.

For the variety of protocol of response data transmission, therefore need an interface circuit 300 to operate.Therefore, the digital signal that digital signal processor 200 is exported can be transmitted digital signal via an interface circuit 300 and enter in the high speed serial communication port 350, and high speed serial communication port 350 transmission speeds reach more than ten times of general COM port transmission speed 115200bit/s.

Conversion equipment 400 1 end connecting interface circuit 300, the other end then is a connecting terminal treating apparatus 500, with the first PORT COM connecting interface circuit 300 and the second PORT COM connecting terminal treating apparatus 500, and conversion equipment 400 is the secondary signal that meets second PORT COM in order to first conversion of signals that will meet first PORT COM.In one embodiment, first PORT COM of the output that some motor drivers 100 are external adopts the transmission interface of COM port (RS232), yet, terminal processes device 500 that some are more novel or hand held signal conditioning package do not have the interface of COM port (RS232) for serial connection, moreover, the transmission speed of COM port (RS232) is 115200bit/s, even use the high speed serial communication port speed to reach more than ten times of 115200bit/s, but still not as good as using the quick of USB (universal serial bus) (USB) 450.So conversion equipment 400 provides the specification conversion of first PORT COM and second PORT COM, in one embodiment, first PORT COM is that high speed serial communication port 350, the second PORT COM are USB (universal serial bus) 450.More than citedly only can only go the PORT COM of changing for explanation conversion equipment 400, be not in order to limit the form of first PORT COM and second PORT COM.There is a high speed serial communication port (high speed RS232) to change the chip of USB (universal serial bus) (USB) in the conversion equipment 400, if the 450 USB1.1 specifications of the USB (universal serial bus) after the conversion, then transfer rate is 12Mb/s, if USB2.0 specification, then transfer rate is 480Mb/s, and is all quite enough to the communication frequency range of real-time Transmission.

Terminal processes device 500 is a computer system; but also can be some palm information processing systems; a USB (universal serial bus) slot 510 is arranged on the terminal processes device 500; the USB (universal serial bus) 450 that gives to be connected by conversion equipment 400 is used; terminal processes device 500 shows the window interface 600 of a software implementation by a display device (not drawing); the window interface 600 and the motor driver 100 of software implementation are obtained annexation; the supplemental characteristic that just can show a plurality of motor drivers 100 by window interface 600; shown data information shows with many covers window system; therefore user's operation situation of monitoring motor driver 100 simultaneously; if action has unusual; motor driver 100 also alarm signal can occur; remind the user to note and make suitable protect measure voluntarily; certainly; if utilize perfect window interface 600 programs of writing; the user is except the running situation that can supervise motor driver 100; more allow the program of window interface 600 have the function of automatic adjusting suitable parameter; window interface 600 can be under the multiaxis window; show different motor driver 100 parameters; terminal processes device 500 is accepted data information for unilateral conductivity; do not have extra burden for digital signal processor 200; when terminal processes device 500 finds that the data information decoding of receiving is wrong; can not require to transmit data information again with motor driver 100; only can on picture, indicate wrong data point; and continuation shows the next record data information; so in the online common demonstration of multiaxis; can not do the multiaxis time synchronized again; therefore can not cause the delay of signal input, the accuracy of measurement data is had more rigorous guarantee.The present invention does not need to plan in advance that a temporary storage is in the motor driver 100 inner buffer zones that transmit when data in addition, motor driver 100 built-in programs utilize the time cycle initiatively send the user the measurement data desiring to inspect, therefore the number and the time of measurement data present certain proportionate relationship, therefore the number of data points and the time of measurement data present certain proportionate relationship, make the motor driver 100 can be by the measurement of real-time.

Please refer to Fig. 4, it is second embodiment of the real-time measurement system of motor driver of the present invention, present embodiment considers that the motor driver 100 of part there is no built-in conversion equipment 400, so propose a kind of conversion equipment 400 to be installed on motor driver 100 outsides, these conversion equipment 400 1 ends utilize connecting line 550 to connect the high speed serial communication port 350 of motor driver 100, and the other end utilizes connecting line 450 connecting terminal treating apparatus 500.Please refer to Fig. 5, it is the real-time testing process figure of multiaxis of motor driver of the present invention.Starter motor device and motor driver at the beginning, in step 501, the terminal processes device detects with motor driver online, in step 502, the terminal processes device will utilize the initial time of motor driver to each, with the time of each synchronous automatically, follow step 503, the terminal processes device is accepted the synchronous measurement data of multiaxis that motor driver is passed back, if measurement data decoding is correct, then enters in the step 504, measurement data is shown on the window interface, if the terminal processes device is found the data information decoding error, then enter in the step 505, sign makes mistake on the window interface picture.

Though the present invention discloses as above with aforesaid preferred embodiment, yet it is not in order to qualification the present invention, and any those skilled in the art without departing from the spirit and scope of the present invention, change and retouching can do some.

Claims

1, a kind of real-time measurement system of motor driver includes:

One digital signal processor, the operational data of this motor driver of digitizing, and export an above measurement data;

One interface circuit connects this digital signal processor, receives this measurement data by this digital signal processor output;

One conversion equipment, to be connected in this interface circuit, first conversion of signals that will meet one first PORT COM is the secondary signal that meets one second PORT COM; It is characterized in that: also include

One terminal processes device, this measurement data of input is also shown this measurement data synchronously with a programmatic interface analyzing and processing, this terminal processes device has a window interface, and when this terminal processes device is found the data information decoding error of reception, can on window interface, indicate wrong data point, and continue to show the next record data information.

2, real-time measurement system according to claim 1 wherein is built in this motor driver in this conversion equipment.

3, real-time measurement system according to claim 1, wherein this conversion equipment is external in this motor driver by a connecting line.

4, real-time measurement system according to claim 1, wherein this first PORT COM is a high speed serial communication port.

5, real-time measurement system according to claim 1, wherein this second PORT COM is a USB (universal serial bus).

6, real-time measurement system according to claim 5, wherein this USB (universal serial bus) is the USB1.1 specification of transfer rate.

7, real-time measurement system according to claim 5, wherein this USB (universal serial bus) is the USB2.0 specification of transfer rate.

8, real-time measurement system according to claim 1, wherein this programmatic interface utilizes multiaxis to show described measurement data.

9, real-time measurement system according to claim 1, wherein this measurement data is a digital signal.