CN207688910U - A kind of encoder test system - Google Patents
A kind of encoder test system Download PDFInfo
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- CN207688910U CN207688910U CN201721681878.1U CN201721681878U CN207688910U CN 207688910 U CN207688910 U CN 207688910U CN 201721681878 U CN201721681878 U CN 201721681878U CN 207688910 U CN207688910 U CN 207688910U
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- encoder
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Abstract
The utility model discloses a kind of encoder test systems,The encoder is connected by the communication interface of RS422/485 buses and embedded system,Embedded system is connect with power supply and encoder respectively by power cord,Embedded system is by central processing unit,Power module,Encoder RS422/485 communication modules,Liquid crystal touch screen TLL communication modules and HMI human-computer interaction screens composition,Power supply is for being powered embedded system,Embedded system is powered by power module for encoder,Encoder is connect by RS422/485 buses with encoder RS422/485 communication modules,Encoder RS422/485 communication modules are connect with central processing unit,Central processing unit is connect with liquid crystal touch screen TLL communication modules,Liquid crystal touch screen TLL communication modules are connect with HMI human-computer interaction screens.The utility model is directed to the problems such as circuit is more, and node is more, and software installation is complicated in existing test system, enormously simplifies system structure, and test system is made to have the simple structure of Highgrade integration and the mobility of miniaturization.
Description
Technical field
The utility model belongs to encoder techniques field, more particularly to a kind of test system for grating encoder.
Background technology
Encoder is the device for the feedback signal that physical signal is converted to number format.In kinetic control system, compile
The feedback signal of code device output is the necessary foundation that controller is calculated, judges and acted.It is common according to the difference of transfer principle
The type of encoder be divided into magnetic effect, capacity effect, opto-electronic conversion etc..And the most common encoder in kinetic control system
It is photoelectric encoder.Photoelectric encoder is divided into according to the difference of its application scenarios as disk light beam encoder and linear grating coding
Device is respectively used to measure angular displacement and straight-line displacement.
The principle and structure of photoelectric encoder are abnormal complexity at present, are broadly divided into photoelectric conversion section and signal processing
Part.Each photoelectric encoder can have the process of necessary signal debugging, such process to answer in manufacture and after sale stage
This is simple as far as possible, succinct.Unfortunately the debugging process of present encoding disk is all abnormal cumbersome.Such as in a new ring
Following a few steps are divided into the signal debugging detection of a coding disk under border：1, connection；2, corresponding digit operating system is installed；
3, encoder debugging software is installed；4, installation and debugging software associated drives and various Runtime Libraries.This not only adds research and development, survey
Examination and after-sales input, nor convenient for the demonstration and popularization of product.It is conceivable that a maintenance personal is in a pile linkage lines
The signal debugging efforts around lower progress of cable and a pile representation device have how difficult.The encoder that will for another example research and develop
Exhibition room displaying is taken from laboratory, that did primary work in laboratory above and will have to repeat to do once again in exhibition room.
As shown in Figure 1, for the normal signal debugging system of existing encoder, it is seen that existing system is primarily present following ask
Topic：
1, connection line is excessive, it can be seen from the figure that the signal debugging of a conventional coders 1 just needs two differences
AC-DC power supplys, need a signal adapter 11 again additionally, due to the disunity of signal（RS232 turns RS422/485）, finally
PC computers 12 are gone to by Serial Port Line 13 again, if encountering notebook or the not PC machine of DB9 serial port, that is also needed to again with one
USB patchcords and corresponding driver.
2, node is excessive, needs two power supplys, one converter in existing system, a DB9 serial port line, one 422/485
Bus, on the one hand, any one link signal interference that goes wrong or occur will influence final output result；On the other hand
Node excessively will expend the time during connection cables and investigation failure.
3, software installation is cumbersome time-consuming, can see the output knot of encoder on computers after all cables connect
Fruit, certainly cannot！Operating system first on computer will meet the mounting condition of test software, such as test software requirement
It could be run on win10, the computer for having filled XP WIN7 systems can only just reset system, secondly meet item
After installing test software on the computer of part also need to that corresponding dynamic operation library, driving etc. are installed.
4, mobility is poor, since connecting line is more, causes connecting node more, and needs to connect with PC machine, makes whole system
It is complicated.
Utility model content
The goal of the invention of the utility model is：In view of the above problems, it is simple in structure to provide one kind, has small-sized
Change and more highly integrated encoder test system.
The technical solution realization method of the utility model technology：A kind of encoder test system, it is characterised in that：The volume
Code device is connected by the communication interface of RS422/485 buses and embedded system, and the embedded system is distinguished by power cord
It is connect with power supply and encoder, the embedded system is led to by central processing unit, power module, encoder RS422/485
Believe that module, liquid crystal touch screen TLL communication modules and HMI human-computer interaction screens composition, the power supply are used for embedded system
System is powered, and the embedded system is powered by power module for encoder, and the encoder passes through RS422/485 buses
It is connect with encoder RS422/485 communication modules, the encoder RS422/485 communication modules are connect with central processing unit, institute
It states central processing unit to connect with liquid crystal touch screen TLL communication modules, the liquid crystal touch screen TLL communication modules and the man-machine friendships of HMI
Mutually screen connection.
Encoder test system described in the utility model, the power supply are 12V, the electricity of the embedded system
The input power output of power supply is the 5V power supplys that encoder needs and the 3.3V electricity that embedded system needs by source module
Source.
Encoder test system described in the utility model, the central processing unit use TI32 arm processors,
LM3S2793 is written with the communication protocol with encoder in the central processing unit.
The utility model is directed to the problems such as circuit encountered in existing test system is more, and node is more, and software installation is complicated, together
When in view of test environment build not a duck soup, will be existing using the high and powerful embedded system of integration degree
Two power supplys in test system are reduced to one, and remove various communication switching points and line, remove PC machine and software, will compile
Code device power supply and RS422/485 turn TLL and are integrated into embedded system, to enormously simplify system structure, make test system
The mobility of simple structure and miniaturization with Highgrade integration.
Description of the drawings
Fig. 1 is the test system schematic of existing encoder.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the operation principle schematic diagram of embedded system in the utility model.
Fig. 4 is the data flowchart of the utility model.
Fig. 5 is the flow chart for carrying out parameter setting in the utility model to encoder by touch screen.
It is marked in figure：1 is encoder, and 2 be RS422/485 buses, and 3 be embedded system, and 4 be power cord, and 5 be power supply electricity
Source, 6 be central processing unit, and 7 be power module, and 8 be encoder RS422/485 communication modules, and 9 be liquid crystal touch screen TLL communications
Module, 10 be HMI human-computer interaction screens, and 11 be signal adapter, and 12 be PC computers, and 13 be Serial Port Line.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model technology.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit utility model.
As shown in Figures 2 and 3, a kind of encoder test system, the encoder 1 by RS422/485 buses 2 with it is embedded
The communication interface of system 3 connects, and the embedded system 3 is connect with power supply 5 and encoder 1 respectively by power cord 4, institute
Embedded system 3 is stated by central processing unit 6, power module 7, encoder RS422/485 communication modules 8, liquid crystal touch screen TLL to be led to
Believe that module 9 and HMI human-computer interactions screen 10 form, the power supply 5 is described embedding for being powered to embedded system 3
Embedded system 3 is powered by power module 7 for encoder 1, and the encoder 1 passes through RS422/485 buses 2 and encoder
RS422/485 communication modules 8 connect, and the encoder RS422/485 communication modules 8 are connect with central processing unit 6, the center
Processor 6 is connect with liquid crystal touch screen TLL communication modules 9, the liquid crystal touch screen TLL communication modules 9 and HMI human-computer interaction screens
10 connections.This system adds RS485/422 communication interfaces and takes in embedded systems in order to reduce communication line and transit point
For the RS485 RS 232 transponders in original system, to reduce node and respective lines.
In the present embodiment, the power supply 5 is 12V, and the power module 7 of the embedded system 3 is by power supply 5
Input power output be encoder need 5V power supplys and embedded system 3 need 3.3V power supplys, the central processing
Device 6 uses TI32 arm processors, LM3S2793, the processing to have powerful data and communication capacity, the central processing unit 6
In be written with communication protocol with encoder 1, to solve installation PC operating systems and Runtime Library, simultaneously as
Embedded system compact volume and convenience is highly convenient for carrying and mobile test, efficiently solves existing system and encounter environmental change needs
Again the trouble of test system building.In order to realize that test software visualizes, patterned convenient, this system uses
32. cun high definition touch screen as the displaying scheme of system, and devises the intuitive interfaces UI, is more convenient for the man-machine friendships of HMI
Stream.
As shown in figure 4, for the operation principle flow chart of this system, specific test method is：Embedded system detects first
Whether there is or not the arrivals of encoder data, if not then have waited until data arrival always；It, can be connecing after having data arrival
The data incoming data processing module received, carries out the parsing of data, then judges the correctness of parsing data, if correctly,
Data to be shown are then sent to touch screen to show, otherwise will abandon the data of this reception, turn again to first step waiting
Encoder data.
As shown in figure 5, to carry out the flow chart of parameter setting to encoder by touch screen, specific method is：First by
Operating personnel select setting option and input design parameter on the touchscreen, and then Parameter Switch is HEX forms by central processing unit
Encoder is passed to again, is handled by the processor of encoder and stored final parameter.
This system is used as communication and DPA data processing activity using embedded system, while taking into account the display of LCD liquid crystal, solves
Various troubles in existing encoder test environment, while cost is reduced again, increase the human-computer interaction with user, interface
It is succinct intuitive.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (3)
1. a kind of encoder test system, it is characterised in that：The encoder（1）Pass through RS422/485 buses（2）With it is embedded
System（3）Communication interface connection, the embedded system（3）Pass through power cord（4）Respectively with power supply（5）And encoder
（1）Connection, the embedded system（3）By central processing unit（6）, power module（7）, encoder RS422/485 communication modules
（8）, liquid crystal touch screen TLL communication modules（9）And HMI human-computer interaction screens（10）Composition, the power supply（5）For to embedding
Embedded system（3）It is powered, the embedded system（3）Pass through power module（7）For encoder（1）Power supply, the coding
Device（1）Pass through RS422/485 buses（2）With encoder RS422/485 communication modules（8）Connection, the encoder RS422/485
Communication module（8）With central processing unit（6）Connection, the central processing unit（6）With liquid crystal touch screen TLL communication modules（9）Even
It connects, the liquid crystal touch screen TLL communication modules（9）With HMI human-computer interaction screens（10）Connection.
2. encoder test system according to claim 1, it is characterised in that：The power supply（5）It is described for 12V
Embedded system（3）Power module（7）By power supply（5）Input power output be encoder need 5V power supplys and
Embedded system（3）The 3.3V power supplys needed.
3. encoder test system according to claim 1, it is characterised in that：The central processing unit（6）Using TI32
Position arm processor, LM3S2793, the central processing unit（6）In be written with and encoder（1）Communication protocol.
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| CN201721681878.1U CN207688910U (en) | 2017-12-06 | 2017-12-06 | A kind of encoder test system |
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| CN201721681878.1U CN207688910U (en) | 2017-12-06 | 2017-12-06 | A kind of encoder test system |
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| CN207688910U true CN207688910U (en) | 2018-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217554A (en) * | 2018-11-23 | 2019-01-15 | 四川云盾光电科技有限公司 | A kind of linear mould group closed-loop system and its control method |
-
2017
- 2017-12-06 CN CN201721681878.1U patent/CN207688910U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217554A (en) * | 2018-11-23 | 2019-01-15 | 四川云盾光电科技有限公司 | A kind of linear mould group closed-loop system and its control method |
| CN109217554B (en) * | 2018-11-23 | 2023-11-03 | 四川云盾光电科技有限公司 | Linear module closed loop system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Nan Jiao Science and Technology Ltd. Assignor: SICHUAN WINDOM PHOTOELECTRIC TECHNOLOGY CO., LTD. Contract record no.: 2018510000074 Denomination of utility model: Encoder test system Granted publication date: 20180803 License type: Common License Record date: 20181212 |
|
| EE01 | Entry into force of recordation of patent licensing contract |