CN209231782U - A kind of multi-channel portable test device for servo-system - Google Patents
A kind of multi-channel portable test device for servo-system Download PDFInfo
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- CN209231782U CN209231782U CN201821995583.6U CN201821995583U CN209231782U CN 209231782 U CN209231782 U CN 209231782U CN 201821995583 U CN201821995583 U CN 201821995583U CN 209231782 U CN209231782 U CN 209231782U
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Abstract
A kind of multi-channel portable test device for servo-system, belongs to servo-system the field of test technology.The utility model is by by CPU, power module, display screen, 1553B communication chip, RS232 electrical level transferring chip, RS485 electrical level transferring chip, the effective integrations such as precision resistance and input key are on circuit boards, greatly reduce the volume of test device, in order to carry and adapt to a variety of test environment, solves the miniaturization of servo-system test equipment, unitized technical problem, the unnecessary waste of man power and material in test process can not only be reduced, and the efficiency of servo-system test can be significantly improved, shorten the development time of project, reduce development cost.
Description
Technical field
The utility model relates to a kind of test devices, and in particular to a kind of multi-channel portable test for servo-system
Device belongs to servo-system the field of test technology.
Background technique
Communication bus type currently used for servo-system is more and more various, including common 1553B bus, RS232 total
Line and RS485 bus etc., for realizing the information communication function of servo-system and control, telemetry system.The increasing of bus types
It is more that requirements at the higher level on the one hand are proposed to the highly reliable and inexpensive of servo-system development, on the other hand to the test of servo-system
It also proposed bigger challenge.Existing servo-system test equipment is based on industrial personal computer, for the servo of different bus interface
System, industrial personal computer need mating a variety of test boards and test software, and testing cost is high；And often volume is huge for test equipment
Greatly, different test environment is inconvenient, is also all greatly to waste to man power and material.
Utility model content
The technical issues of the utility model solves is: having overcome the deficiencies of the prior art and provide a kind of for servo-system
Multi-channel portable test device, provide a solution for miniaturization, the generalization of servo-system test equipment, not only
The unnecessary waste of man power and material in test process can be reduced, and the efficiency of servo-system test can be significantly improved,
The development time for shortening project, reduce development cost.
The technical solution of the utility model is: a kind of multi-channel portable test device for servo-system, packet
Include CPU, bus communication chip, several different electrical level transferring chips, the essence for acquiring external analog voltages and current signal
Cipher telegram resistance and the input key that test device parameter is adjusted for tester, the CPU, bus communication chip, level conversion
Chip, precision resistance and the input equal integrated installation of key are on circuit boards；It is one end of the CPU and bus communication chip, each
One end of electrical level transferring chip and input are by key connection；The bus communication chip and the other end of each electrical level transferring chip point
It is not connect by one-to-one test device external interface with servo controller；One end of the precision resistance and tested control
Device is connected, and the other end connects CPU.
Further, the bus communication chip is 1553B bus communication chip, and the 1553B bus communication chip is logical
It crosses address bus and the one-to-one mode of data/address bus and CPU is connected in parallel.
Further, the electrical level transferring chip includes RS232 electrical level transferring chip and RS485 electrical level transferring chip, institute
It states RS232 electrical level transferring chip and RS485 electrical level transferring chip passes through SCI universal serial bus and connect with CPU.
It further, further include power module, the power module includes tri- pieces of power supply chips of A, B, C, wherein power supply core
One end of piece A is connect with external power supply, and the other end is connect with one end of power supply chip B and power supply chip C, and power supply chip B's is another
One end is connect with RS232 electrical level transferring chip and RS485 electrical level transferring chip, is the RS232 electrical level transferring chip and RS485
Electrical level transferring chip power supply, the other end of power supply chip C are connect with CPU, 1553B communication chip, are CPU, 1553B communication chip
Power supply.
Further, the power supply chip A is MC34063, and the power supply chip B is MIC5202-5V, described
Power supply chip C is MIC5202-3.3V.
It further, further include display screen for real-time display test data and image, the display screen and CPU and institute
State the output end connection of power supply chip A.
Further, the display screen is connect by SPI universal serial bus with CPU.
Further, display screen control chip is SSD1325.
Further, the bus communication chip be HT-61843, the electrical level transferring chip include MAX232 and
MAX485。
Further, the CPU is DSP28335.
The utility model compared with prior art the advantages of be:
(1) the utility model is by by CPU, power module, display screen, 1553B communication chip, RS232 level conversion core
The effective integrations such as piece, RS485 electrical level transferring chip, precision resistance and input key on circuit boards, greatly reduce test dress
The volume set, in order to carry and adapt to a variety of test environment；
(2) utility model device is integrated in servo-system common 1553B bus, RS232 bus and RS485 simultaneously
Three kinds of bus interface of bus, can test most of servo-system；
(3) utility model device tests type, frequency and the amplitude of signal by input key, adjustable output,
To meet the needs of servo-system is to different test signals；
(4) utility model device has multichannel analog amount acquisition interface, passes through the partial pressure and conversion function of precision resistance
Can, reach the acquisition of the multi-channel analog voltage and current signals to controller output.
Detailed description of the invention
Fig. 1 is the utility model test device structural block diagram；
Fig. 2 is the schematic diagram that the utility model tests the servo controller based on 485 bus communications.
Specific embodiment
It is further described with reference to the accompanying drawings of the specification.
A kind of multi-channel portable test device for servo-system, such as Fig. 1, including CPU, power module, display screen,
1553B communication chip, RS232 electrical level transferring chip, RS485 electrical level transferring chip, precision resistance and input key, in which:
Control device of the CPU as core needs and the display screen of periphery, 1553B communication chip, RS232 level conversion
Chip, RS485 electrical level transferring chip, precision resistance and input are by key connection；
Power module includes tri- pieces of power supply chips of A, B, C, and wherein one end of A is connect with external power supply, the other end and B of A,
C is connected with the power pin of display screen, and B, C are electric with CPU, 1553B communication chip, RS232 electrical level transferring chip and RS485 respectively
Flat conversion chip connection；
Display screen is connect with CPU；
One end of 1553B communication chip is connect with CPU, and the other end is output to device external interface and servo controller connects
It connects；
One end of RS232 electrical level transferring chip is connect with CPU, and the other end is output to device external interface and servo controller
Connection；
One end of RS485 electrical level transferring chip is connect with CPU, and the other end is output to device external interface and servo controller
Connection；
Precision resistance one end is connect with externally input analog signal, the analog acquisition pin connection of the other end and CPU；
Input the I/O mouth connection of key one end and CPU, the other end with digitally connect.
In above-mentioned multi-channel portable test device, the output voltage of chip A is as B, C and display screen in power module
Input voltage；Input voltage of the output voltage of chip B as RS232 and RS485 electrical level transferring chip；The output of chip C
Input voltage of the voltage as CPU and 1553B communication chip；
In above-mentioned multi-channel portable test device, the 1553B bus communication chip passes through address bus and number
It is connected in parallel according to the one-to-one mode of bus and CPU；
In above-mentioned multi-channel portable test device, the RS232 electrical level transferring chip by SCI universal serial bus with
CPU connection, the other end are output to device external interface；
In above-mentioned multi-channel portable test device, the RS485 electrical level transferring chip by SCI universal serial bus with
CPU connection, the other end are output to device external interface；
In above-mentioned multi-channel portable test device, the display screen is connect by SPI universal serial bus with CPU；
In above-mentioned multi-channel portable test device, the precision resistance is used as acquisition external analog signal, voltage
Signal collects in such a way that precision resistance divides, and current signal is equally acquired by precision resistance；
In above-mentioned multi-channel portable test device, the 1553B bus communication chip model is HT-61843, institute
The RS232 electrical level transferring chip model MAX232 stated, the described RS485 electrical level transferring chip model MAX485, it is described
Display screen control chip model be SSD1325, the model MC34063 of the power supply chip A, the power supply chip B's
Model MIC5202-5V, the model MIC5202-3.3V of the power supply chip C.
In above-mentioned multi-channel portable test device, CPU the model DSP28335, CPU are equipped with SPI, SCI etc.
Serial communication interface is equipped with data communication parallel interface and analog acquisition interface.CPU is gone here and there by parallel bus and SPI, SCI
Row bus and display screen and the communication chip of periphery connects, by the phase current of analog acquisition interface acquisition servo-system,
Control the analog quantity informations such as voltage.
In above-mentioned multi-channel portable test device, the 1553B communication chip handles 1553B information, complete
At the conversion between parallel data and 1553B serial data, the data communication between CPU and tested servo controller is realized；
In above-mentioned multi-channel portable test device, the MAX232 electrical level transferring chip to the data of transmission at
Reason is completed the SCI serial data of DSP processing and the level conversion of RS232 data, is realized between CPU and tested servo controller
Data communication；
In above-mentioned multi-channel portable test device, the MAX485 electrical level transferring chip to the data of transmission at
Reason is completed the SCI serial data of DSP processing and the level conversion of RS485 data, is realized between CPU and tested servo controller
Data communication；
In above-mentioned multi-channel portable test device, the display screen is completed by control chip SSD1325 control
The display of test data and image；
In above-mentioned multi-channel portable test device, CPU, display screen, RS232 in the power module finishing device
The power supply of electrical level transferring chip, RS485 electrical level transferring chip and 1553B communication chip；
In above-mentioned multi-channel portable test device, the input key completes the basic setup of test device, packet
Test signal type, frequency and amplitude needed for including setting etc..
Embodiment
It is as shown in Figure 1 the utility model multi-channel portable schematic structural diagram of testing device, multichannel is just as seen from the figure
Take formula test device composition include: CPU, power module, display screen, 1553B communication chip, RS232 electrical level transferring chip,
RS485 electrical level transferring chip, precision resistance and input key.
One end of 1553B communication chip is connect by parallel address bus and data/address bus with CPU, and the other end is output to
Device external interface is connect with the servo controller based on 1553B bus communication.
One end of MAX232 chip is connect by SCI universal serial bus with CPU, and the other end is output to device external interface and base
It is connected in the servo controller of RS232 bus communication.
One end of MAX485 chip is connect by SCI universal serial bus with CPU, and the other end is output to device external interface and base
It is connected in the servo controller of RS485 bus communication.
Display screen control chip is connect by SPI universal serial bus with CPU.
Precision resistance collects in such a way that precision resistance divides for acquiring external analog signal, voltage signal,
Current signal is equally acquired by precision resistance.
The function of CPU is to provide the serial communication interfaces such as standard SPI, SCI, data communication parallel interface and analog acquisition
Interface.CPU is connect by parallel bus and SPI, SCI universal serial bus with the communication chip of display screen and periphery, and outside is passed through
Key tests type, amplitude and the frequency of signal to be arranged, and passes through analog acquisition interface and acquires the phase current of servo-system, control
The analog quantity informations such as voltage processed.
Below by taking the servo controller based on 485 bus communications as an example, illustrate the use of multi-channel portable test device
Method.
It is illustrated in figure 2 the schematic diagram of servo controller of the utility model test based on 485 bus communications.
Step 1: assembling test device according to following connection relationship.
RS485 cable one end is connect with servo controller, the RS485 bus interface connection of the other end and test device.
Step 2: setting test device
Test device is configured by key, the type of setting output test signal is RS485 signal, setting output
The frequency and amplitude of signal, start to test.
Step 3: test is completed, the RS485 cable connecting with tested servo controller is disconnected.
The content being not described in detail in the utility model specification belongs to the well-known technique of those skilled in the art.
Claims (10)
1. a kind of multi-channel portable test device for servo-system, it is characterised in that: including CPU, bus communication chip,
Several different electrical level transferring chips, the precision resistance for acquiring external analog voltages and current signal and be used for tester
The input key of test device parameter is adjusted, the CPU, bus communication chip, electrical level transferring chip, precision resistance and input are pressed
The equal integrated installation of key is on circuit boards；The CPU and one end of bus communication chip, one end of each electrical level transferring chip and defeated
Enter by key connection；The bus communication chip and the other end of each electrical level transferring chip pass through test dress correspondingly respectively
External interface is set to connect with servo controller；One end of the precision resistance is connected with tested controller, and the other end connects CPU.
2. a kind of multi-channel portable test device for servo-system according to claim 1, it is characterised in that: institute
Stating bus communication chip is 1553B bus communication chip, and the 1553B bus communication chip passes through address bus and data/address bus
One-to-one mode and CPU are connected in parallel.
3. a kind of multi-channel portable test device for servo-system according to claim 1, it is characterised in that: institute
Stating electrical level transferring chip includes RS232 electrical level transferring chip and RS485 electrical level transferring chip, the RS232 electrical level transferring chip
Pass through SCI universal serial bus with RS485 electrical level transferring chip to connect with CPU.
4. a kind of multi-channel portable test device for servo-system according to claim 1, it is characterised in that: also
Including power module, the power module includes tri- pieces of power supply chips of A, B, C, wherein one end of power supply chip A and external power supply
Connection, the other end are connect with one end of power supply chip B and power supply chip C, the other end and RS232 level conversion of power supply chip B
Chip is connected with RS485 electrical level transferring chip, is that the RS232 electrical level transferring chip and RS485 electrical level transferring chip are powered, electricity
The other end of source chip C is connect with CPU, 1553B communication chip, is powered for CPU, 1553B communication chip.
5. a kind of multi-channel portable test device for servo-system according to claim 4, it is characterised in that: institute
The power supply chip A stated is MC34063, and the power supply chip B is MIC5202-5V, and the power supply chip C is MIC5202-
3.3V。
6. a kind of multi-channel portable test device for servo-system according to claim 4, it is characterised in that: also
Including the display screen for real-time display test data and image, the output end of the display screen and CPU and the power supply chip A
Connection.
7. a kind of multi-channel portable test device for servo-system according to claim 6, it is characterised in that: institute
Display screen is stated to connect by SPI universal serial bus with CPU.
8. a kind of multi-channel portable test device for servo-system according to claim 6, it is characterised in that: institute
The display screen control chip stated is SSD1325.
9. described in any item a kind of multi-channel portable test devices for servo-system according to claim 1~8, special
Sign is: the bus communication chip is HT-61843, and the electrical level transferring chip includes MAX232 and MAX485.
10. described in any item a kind of multi-channel portable test devices for servo-system according to claim 1~8,
Be characterized in that: the CPU is DSP28335.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995583.6U CN209231782U (en) | 2018-11-29 | 2018-11-29 | A kind of multi-channel portable test device for servo-system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995583.6U CN209231782U (en) | 2018-11-29 | 2018-11-29 | A kind of multi-channel portable test device for servo-system |
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| Publication Number | Publication Date |
|---|---|
| CN209231782U true CN209231782U (en) | 2019-08-09 |
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| CN201821995583.6U Active CN209231782U (en) | 2018-11-29 | 2018-11-29 | A kind of multi-channel portable test device for servo-system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679995A (en) * | 2020-06-19 | 2020-09-18 | 西安微电子技术研究所 | Embedded management execution unit of space computer based on 1553B bus |
-
2018
- 2018-11-29 CN CN201821995583.6U patent/CN209231782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679995A (en) * | 2020-06-19 | 2020-09-18 | 西安微电子技术研究所 | Embedded management execution unit of space computer based on 1553B bus |
| CN111679995B (en) * | 2020-06-19 | 2021-09-28 | 西安微电子技术研究所 | Embedded management execution unit of space computer based on 1553B bus |
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