CN2168288Y

CN2168288Y - Rectifier testing machine connection mechanism

Info

Publication number: CN2168288Y
Application number: CN 93223449
Authority: CN
Inventors: 刘顺发
Original assignee: Guankui Electric Motor Co ltd
Current assignee: Guankui Electric Motor Co ltd
Priority date: 1993-09-02
Filing date: 1993-09-02
Publication date: 1994-06-08
Anticipated expiration: 2003-09-02

Abstract

A connection mechanism of rectifier tester is disclosed, which uses a plurality of rectifier testers connected to a personal computer and works in an on-line network real-time processing manner to collect and process the data of the connected rectifier testers, so as to perform the functions of displaying statistical chart and printing output.

Description

Wire-tying mechanism for testing machine of rectifier

The utility model relates to a kind of rectifier test machine connecting line mechanism, it is to be connected in PC with multi-section rectifier test machine, and with the instant processing mode work in networking on the line, the rectifier of collection institute line is estimated the data of machine and is handled, and, be its feature can carry out functions such as the demonstration of statistical graph and the output of prining.

The rectifier test of tradition, be with the manually-operated test machine, and write down various test datas, by related management personnel comprehensive improvement, put out statistical graph or test data in order and draw according to this again, this kind operating type is fully manually to carry out, society's today in everything request efficient, be not inconsistent the requirement of a large amount of productions,, become that industry member is paid attention to and the utmost point is thought the problem of solution so how effectively to improve the efficient of rectifier test job.

In view of this, this case creator is to be engaged in the rich experiences that relevant manufacturing is accumulated for many years, analyse in depth research at rectifier test job commonly used, create " rectifier test machine connecting line mechanism ", through repeatedly checking on probation, finding that it really can effectively improve the rectifier test jobs, is the perfect utility model of a design.

Therefore, the fundamental purpose of the utility model provides a kind of rectifier test machine connecting line mechanism, this rectifier test machine connecting line mechanism adopts many diverging tracks system (MULTI-DROP SYSTEM) notion, carry out test job with multi-section rectifier test machine line in personal computer, and make rectifier test job comprehensive automation, and adopt modular design, reserve the design Extended Spaces, help the expansion of equipment and test machine, be its principal character.

This case " rectifier test machine connecting line mechanism ", be to be that its planning has in real time (REAL TIME) Data Processing working method, when making personal computer carry out the processing of other data, for the still sustainable reception of the test data that test machine transmitted, and can grasp the various situations of controlling test job simultaneously, be its another feature.

This case " rectifier test machine connecting line mechanism ", be for the rectifier test machine of its line, have the functions such as setting, data access and Data Processing that can directly carry out data, effectively solve test machine data management problem; And can carry out password and set, increase the security of factory's file maintenance and use, be its further feature.

This case " rectifier test machine connecting line mechanism " is to be the complete using system I/O of its software design processing mode, and Data Processing speed is fast, is its feature again.

This case " rectifier test machine connecting line mechanism " is the interface tech processing mode that is that it adopts the RS-422 level, and the problem that can effectively prevent environment of plant interference is its another feature.

For making the auditor further understand the feature of this case, the creator is with reference to accompanying drawing, and the utility model is back to be illustrated in detail:

Fig. 1 is the software control calcspar of the utility model one most preferred embodiment

Fig. 2 is the circuit block diagram of the utility model one most preferred embodiment

Fig. 3 A, 3B and Fig. 4 A, 4B are detailed circuit diagram of the present utility model.

The utility model is when implementing, and the hardware aspect includes:

1.IBM or the personal computer with IBM compatibility,

2. circuit transmission card,

3.640K the primary memory of capacity

The software aspect has:

1.Borland C software for editing

Shown in Figure 1, be the software control calcspar of the utility model one most preferred embodiment:

1. password is set 1a: password is set 1a except the security that increases data preservation, native system is more identified the function of (Password Authentication) with password, differentiate the interest field of identifying classification (Authentication Hierarchy), the password attribute of difference (Password Attribution) has the classification of identifying of difference, and the native system design has automatic differentiation to identify the function of attribute.

2. operator's module 2a: under this module, the operator is only available to be set the rectifier test machine that (SETUP) data 2a1 and data be written into 2a2 and carries out test operation, and this module is applicable to the operating personnel of basic unit at scene.

3. slip-stick artist's module 3a: under this module, it provides the slip-stick artist to carry out full screen and sets 3a1, the archives 3a2 that is written into setting and the data 3a3 of storing and setting.

4. maintenance personal's module 4a: it identifies that attribute can be divided into the test 4a2 of correction module 4a1 and electromagnetic valve driver, and correction module 4a1 is divided into D/A and A/D converter 4a11, forward current and forward voltage dynamic test (IF﹠amp again; VF Dynamic Test) dynamic (the PIV ﹠amp of 4a12, revers voltage (PIV) voltage source 4a13 and revers voltage and backward current; IR Dynamic) tests 4a14 etc.

5. the processing 5a of archives: be divided into the 5a1 that is written into of operation archives, and file delet, demonstration and identification 5a3, more directly under rebound disc operating system (DOS) (DOS) 5a2.

6. graphics process 6a: pie graph (PIE Chart) 6a1 and bar chart (BAR Chart) 6a2 that can show measurement result, because this two big function, more the data value that is stored in archives can be drawn and be shown 6a116112, can also random fashion 6a12,6a22, show the weighting figure of certain part instant data.

7. 7a prints: data and institute's drawing shape of archives can be printd out from printer, in order to the management and the storage of data preservation.

Fig. 2 is the circuit block diagram of the utility model one most preferred embodiment, by among the figure as can be known, it comprises:

1. CPU (central processing unit) 1b: it is a digital circuit, is responsible for the operation of control rectifier test machine connection system; It contains output input circuits such as liquid crystal (LCD) display, light emitting diode (LED) display and keyboard in addition, and can link up with the operator.

2. transmission interface 2b: itself and CPU (central processing unit) 1b line, include RS-232, RS-422, RS-485 and IEEE-488 hardware interface, select for use according to need by the user; The function of this transmission interface 2b is transmitted with the data between the rectifier test machine for being responsible for CPU (central processing unit) 1b, and the data that it transmitted has the data of setting measurement value, control data group and measurement of test machine and the state of system.

3. mechanical interface I/O unit 3b: the robotization control signal of being responsible for test machine is handled, this interface signal comprises the initial test signal of test machine (when beginning test in order to the notice test machine), testing end signal and solenoid-driven signal and system control signal group etc.

4. the first digital/analog converter 4b1: its digital/analog converter, multiplexer, digital decoder and digital control circuit by 16 of high-resolutions is formed, be responsible for and convert simulating signal to by the digital signal that CPU (central processing unit) 1b is transmitted, in order to control output current big device 7b1 7b2 or output high-voltage amplifier 8b, produce curtage with test determinand (D.U.T).

5. the second digital/analog converter 4b2: it also is made up of digital/analog converter, multiplexer, digital decoder and the digital control circuit of 16 of high-resolutions, and function is similar to the first digital/analog converter 4b2.

6. analog/digital conversion unit 5b: it is made up of 16 high-resolution analog/digital converters, simulation multiplexer and digital control circuit, and is responsible for analog signal digital, carries out Data Processing for CPU (central processing unit) 1b; This simulating signal comprises voltage source, current amplifier and the determinand electric current and voltage value of test machine inside.

7. input voltage amplifier 6b1: be made up of operational amplifier, its function is amplified for the weak voltage of survey being put gained, and when the input high voltage, must cooperate to simulate bleeder circuit and decayed, and can measure the magnitude of voltage of different range.

8. input current amplifier 6b2: be made up of operational amplifier, its function is amplified for crossing when input current when hanging down, and when input current is too high, is then decayed, and is measured the current value of different range.

9. current amplifiers 7b1,7b2: being made up of operational amplifier, is controlled by the first digital/analog converter 4b1 and the second digital/analog converter 4b2, produces electric current with test determinand (D.U.T.).

10. output voltage amplifier 8b: be made up of operational amplifier, it is controlled by the first digital/analog converter 4b1 and the second digital/analog converter 4b2, produces voltage with test determinand (D.U.T.).

11. switch element 9b: formed by mercury cut-off, relay and digital circuit, have the switching capability of high voltage, high electric current, in order to the rectifier of test different shape.

What deserves to be mentioned is in addition, the rectifier pattern that the utility model " rectifier test machine connecting line mechanism " can be tested is numerous, includes Xiao Tuoji (Schottky) rectifier, plastics (Plastic) rectifier, switch (Fast Switching) rectifier at a high speed, efficient (Efficient) rectifier, hypervelocity is switched (Ultra Fast Switching) rectifier, (Soft RecoveryFast Switching) rectifier is switched in soft recovery fast, glassivation (Glass Passivated) rectifier, controlled snowslide (Control Avalanche) rectifier, bridge-type (Bridge) rectifier, centre tap switches (Center Tap Switching) rectifier, switch bridge-type (Fast Switching Bridge) rectifier fast, surface mount (Surface Mounted) rectifier, micro semiconductor material (Dice), rheostat, light emitting diode, tunnel diode, Zener diodes etc. are multiple.

In sum, no matter the utility model " rectifier test machine connecting line mechanism " on structure or function, all meets the novel patented claim requirement of Patent Law defined, the creator offers novel patented claim in the whence in accordance with the law, earnestly ask juror's explicit example for reference, vouchsafe the authorization that this case should patent, the true feeling moral just.

Claims

A rectifier testing machine connection mechanism, which can be connected to a personal computer and connect several rectifier testing machines at the same time. It is characterized in that it mainly includes:

A central processing unit, which is a digital circuit, is responsible for controlling the operation of the rectifier test machine connection system; in addition, it contains liquid crystal (LCD) display, light emitting diode (LED) display, keyboard and other output and input circuits, and can communicate with the operator communicate;

A transmission interface, which is connected to the personal computer, including RS-232, RS-422, RS-485 and IEEE-480 hardware interfaces, is the data transmission path between the personal computer and the rectifier testing machine, and the transmitted data is The setting measurement value of the testing machine, the control data group and the measurement data and the state of the system;

1. Mechanical interface I/O unit: responsible for the automatic control signal processing of the testing machine. The interface signals include the test machine start test signal, test end signal, solenoid valve drive signal and system signal group, etc.;

The first digital/analog conversion unit is composed of a high-resolution 16-bit digital/analog converter, a multiplexer, a digital decoder and a digital control circuit, and is responsible for converting the digital signal transmitted from the central processing unit Analog signals are used to control the output current amplifier or output voltage amplifier to generate current or voltage to test the DUT (D.U.T.);

The second digital/analog conversion unit is composed of a high-resolution 16-bit digital/analog converter, a multiplexer, a digital decoder and a digital control circuit, and its function is similar to that of the first digital/analog conversion unit;

An analog/digital conversion unit, consisting of a 16-bit high-resolution analog/digital converter, an analog multiplexer and a digital control circuit, is responsible for digitizing analog signals for data processing by the central processing unit; the analog signals include test The voltage and current values of the voltage source, current amplifier and the object under test inside the machine;

An output current amplifier is composed of an operational amplifier, which is controlled by the first digital/analog conversion unit and the second digital/analog conversion unit to generate current to test the DUT (D.U.T);

An output voltage amplifier is composed of an operational amplifier, which is controlled by the first digital/analog conversion unit and the second digital/analog conversion unit to generate voltage to test the DUT (D.U.T);

An input voltage amplifier, composed of an operational amplifier, whose function is to amplify the measured weak voltage, and when a high voltage is input, cooperate with the analog voltage divider circuit to attenuate, so as to measure voltage values in different ranges;

An input current amplifier, composed of an operational amplifier, its function is to amplify when the input current is too low, and attenuate when the input current is too high, so as to be able to measure current values in different ranges;

The switch unit is composed of mercury switches, relays and digital circuits. It has high voltage and high current switching capabilities and is used to test rectifiers of different forms;

During the test, the mechanical interface I/O unit is responsible for the automatic control signal processing of the testing machine. This interface signal includes the test machine start test signal, test end signal, solenoid valve drive signal and system control signal group, etc. The control signal is provided by the first A digital/analog conversion unit and a second digital/analog conversion unit are converted into analog signals, and then amplified by the output current amplifier and the output voltage amplifier, and the voltage and current are generated through the switch unit to test the rectifier; the rectifier to be tested is connected to the switch The unit obtains the voltage and current values to be measured, and the input voltage amplifier and the input current amplifier respectively amplify or attenuate the voltage and current values to be measured, and then the analog/digital converter digitizes the measured analog voltage for the central The processing unit performs data processing, and transmits the processed data to the personal computer through the transmission interface, thereby having multiple automatic processing functions such as data setting, access, and processing.