CN105045178A - Hydraulic cylinder drive circuit apparatus based on DSP (Digital Signal Processor) - Google Patents
Hydraulic cylinder drive circuit apparatus based on DSP (Digital Signal Processor) Download PDFInfo
- Publication number
- CN105045178A CN105045178A CN201510406724.0A CN201510406724A CN105045178A CN 105045178 A CN105045178 A CN 105045178A CN 201510406724 A CN201510406724 A CN 201510406724A CN 105045178 A CN105045178 A CN 105045178A
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- China
- Prior art keywords
- hydraulic cylinder
- dsp
- driven
- circuit arrangement
- arrangement based
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a hydraulic cylinder drive circuit apparatus based on a DSP (Digital Signal Processor) and belongs to the field of hydraulic cylinder driving. The apparatus comprises AD data acquisition modules, DA signal output modules, a CAN communication module and a power supply module. The AD data acquisition modules collect voltage signals of hydraulic cylinder position sensors and force sensors. The voltage signals are subjected to a DSP minimum system so as to output corresponding voltage signals, and then the signals are amplified via the DA signal output modules so as to drive hydraulic cylinder servo valves to operate. The DSP minimum system receives an instruction sent by a host computer through the CAN communication module and sends the current state of a hydraulic cylinder to the host computer.
Description
Technical field
Patent of the present invention relates to Driven by Hydraulic Cylinder device, be specifically related to one embedded microprocessor DSP as control core, gather hydraulic cylinder sensing data by AD conversion module, and utilize DA output module to export corresponding simulation controlled quentity controlled variable to complete the precision servo of hydraulic cylinder.This device may be used for hydraulically powered various performer.
Background technology
TMS320F28335 type digital signal processor is up-to-date 32 is Floating-point DSP controller, is that current control field is most advanced, one of most widely used controller.Its highest point reason frequency, up to 150MHz, improves response speed and the processing accuracy of control system.This chip has abundant Peripheral Interface, can realize AD data acquisition, DA analog signal output and CAN communication function.Therefore this chip is suitable as the core controller of Driven by Hydraulic Cylinder circuit arrangement very much.But due to dsp chip adopt 3.3V power, its driving force and anti-electromagnetic interference capability more weak, so analog amplify circuit and high-speed photoelectric coupler should be coordinated to complete hydraulic cylinder servocontrol.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP.
The present invention for achieving the above object, adopts following technical scheme: a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP, comprises DSP minimum system, AD data acquisition module, DA signal output module, CAN and supply module.By the voltage signal of AD data collecting module collected hydraulic cylinder position sensor and force snesor, after the process of DSP minimum system, export corresponding voltage signal, signal amplifies the work of rear drive hydraulic cylinder servo-valve through DA signal output module.DSP minimum system can receive the instruction of host computer transmission by CAN, and the state of current hydraulic cylinder is sent to host computer.
Advantage of the present invention: select the up-to-date DSP with floating-point operation function, substantially increase the data-handling capacity of system; There is multi-channel A/D data acquisition and DA signal output module, multiple hydraulic cylinder servo simultaneously can be realized; Adopt CAN communication technology, can effectively and host computer carry out exchanges data, the execution cycle of reduction system, is conducive to realizing hydraulic cylinder and responds fast, precision servo.
Accompanying drawing explanation
Fig. 1 system chart of the present invention;
Fig. 2 AD data acquisition module of the present invention schematic diagram;
Fig. 3 DA signal output module of the present invention schematic diagram;
Fig. 4 CAN schematic diagram of the present invention;
Fig. 5 supply module schematic diagram of the present invention;
Embodiment
Shown in Fig. 1-Fig. 5, for a kind of based on the Driven by Hydraulic Cylinder circuit arrangement of DSP, comprise DSP minimum system, AD data acquisition module, DA signal output module, CAN and supply module.By the voltage signal of AD data collecting module collected hydraulic cylinder position sensor and force snesor, after the process of DSP minimum system, export corresponding voltage signal, signal amplifies the work of rear drive hydraulic cylinder servo-valve through DA signal output module.DSP minimum system can receive the instruction of host computer transmission by CAN, and the state of current hydraulic cylinder is sent to host computer.
Claims (6)
1. the Driven by Hydraulic Cylinder circuit arrangement based on DSP, comprise DSP minimum system, hyperchannel AD acquisition module, hyperchannel DA output module, CAN and supply module, described DSP minimum system is for the treatment of sensor return data and send steering order, described AD acquisition module is by Position of Hydraulic Cylinder and force signal, described DA output module is for driving hydraulic cylinder servo-valve, described CAN is used for the instruction that several first host computer sends, and described supply module is used for providing 3.3V and 1.9V voltage.
2. a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP as claimed in claim 1, is characterized in that, what described DSP minimum system adopted is TMS320F28335 chip.
3. a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP as claimed in claim 1, is characterized in that, described AD acquisition module adopts AD698 chip, has four road AD acquisition channels, can gather four road AD signals.
4. a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP as claimed in claim 1, it is characterized in that, described DA output module adopts can export four road analog signalses simultaneously, first adopt two-stage OP2177 chip to voltage amplification, obtain the voltage signal with driving force, driving servo-valve can be directly used in.
5. a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP as claimed in claim 1, is characterized in that, described CAN adopts TJA1050T chip to complete CAN signal transmitting-receiving, in order to get rid of electromagnetic interference (EMI), adopts the isolation of 6N137 high speed photo coupling.
6. a kind of Driven by Hydraulic Cylinder circuit arrangement based on DSP as claimed in claim 1, is characterized in that, described supply module adopts TPS767D301 chip to provide 3.3V and 1.9V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406724.0A CN105045178A (en) | 2015-07-12 | 2015-07-12 | Hydraulic cylinder drive circuit apparatus based on DSP (Digital Signal Processor) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406724.0A CN105045178A (en) | 2015-07-12 | 2015-07-12 | Hydraulic cylinder drive circuit apparatus based on DSP (Digital Signal Processor) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105045178A true CN105045178A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510406724.0A Pending CN105045178A (en) | 2015-07-12 | 2015-07-12 | Hydraulic cylinder drive circuit apparatus based on DSP (Digital Signal Processor) |
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| Country | Link |
|---|---|
| CN (1) | CN105045178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966925A (en) * | 2017-11-15 | 2018-04-27 | 北京理工大学 | A kind of high-precision multiple signals data testing system and test method based on DSP28335 |
Citations (4)
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|---|---|---|---|---|
| CN101101247A (en) * | 2007-01-25 | 2008-01-09 | 北京交通大学 | Digital type self-adaptive electro-hydraulic fatigue test machine and realization method |
| CN201017214Y (en) * | 2006-10-20 | 2008-02-06 | 北京工业大学 | Variable resonance frequency hydraulic vibration control system based on DSP |
| CN201402394Y (en) * | 2009-04-02 | 2010-02-10 | 保定天威集团有限公司 | Fan variable-pitch controller |
| CN104476533A (en) * | 2014-11-27 | 2015-04-01 | 清华大学 | Master-slave control flexible continuum robot device and control method thereof |
-
2015
- 2015-07-12 CN CN201510406724.0A patent/CN105045178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017214Y (en) * | 2006-10-20 | 2008-02-06 | 北京工业大学 | Variable resonance frequency hydraulic vibration control system based on DSP |
| CN101101247A (en) * | 2007-01-25 | 2008-01-09 | 北京交通大学 | Digital type self-adaptive electro-hydraulic fatigue test machine and realization method |
| CN201402394Y (en) * | 2009-04-02 | 2010-02-10 | 保定天威集团有限公司 | Fan variable-pitch controller |
| CN104476533A (en) * | 2014-11-27 | 2015-04-01 | 清华大学 | Master-slave control flexible continuum robot device and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张岩 等: "基于DSP的多通道多功能电液运动控制器的设计", 《液压与气动》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966925A (en) * | 2017-11-15 | 2018-04-27 | 北京理工大学 | A kind of high-precision multiple signals data testing system and test method based on DSP28335 |
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Application publication date: 20151111 |