CN203412834U - DSP (Digital Signal Processor)-based electro-hydraulic servo controller - Google Patents
DSP (Digital Signal Processor)-based electro-hydraulic servo controller Download PDFInfo
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- CN203412834U CN203412834U CN201320457876.XU CN201320457876U CN203412834U CN 203412834 U CN203412834 U CN 203412834U CN 201320457876 U CN201320457876 U CN 201320457876U CN 203412834 U CN203412834 U CN 203412834U
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Abstract
The utility model relates to a servo controller, and particularly relates to a DSP (Digital Signal Processor)-based electro-hydraulic servo controller. An output end of a sensor and an input end of an input end are connected, an output end of the input module and an input end of a servo control module are connected, an output end of the servo control module and an input end of the output module are connected, a DSP module is respectively connected with the input module, the servo control module and a communication module. The electro-hydraulic servo controller with a powerful servo control function and the structure can fully take into account to and meet the demand on various complicated motion control in different fields, is complete in functions, high in integration degree, capable of fully and independently completing the control on the servo and function of an electro-hydraulic system and greatly improving the field operability and system stability; furthermore, based on the DSP hardware architecture, the extensibility of the control function and good field man-machine interaction can be easily realized by communicating the communication module with a PC (Personal Computer).
Description
Technical field
The utility model relates to a kind of servocontroller, especially a kind of Electronic-hydraulic Servo Controller based on DSP.
Background technique
In nearly decades, be accompanied by the progress of the technology such as modern manufacture, material, hydraulic control technology is also rapidly developed, the especially birth of electrohydraulic control, Hydraulic servo technology has entered the electro-hydraulic servo epoch especially.
Electrohydraulic servo system is a complex structure and machine, electricity, the combination system that liquid is multiple coupled, because this system can be given full play to the advantage of electronics and hydraulic pressure two aspects, there is large output power, highi degree of accuracy and the fast ability of response, therefore be widely used in aviation, space flight, military, metallurgical, traffic, a plurality of fields such as engineering machinery, especially present stage, people are to various tests, the value and strengthen of emulation, electrohydraulic servo system is tired as realizing, the best means of the multiple analog l-G simulation tests such as permanent load rate, in test application, obtained great expansion especially.
As one of core technology in electrohydraulic servo system, electro-hydraulic servo control technology has determined performance and the function of electrohydraulic servo system largely, and its significance level is self-evident.
Early stage electro-hydraulic servo control adopts a plurality of instruments of functional independence to coordinate more, and obviously, this has improved system building, execute-in-place complexity greatly, has reduced the stability of a system, reliability, also has the hidden danger such as Instrument Matching compatibility simultaneously.Along with the development of IC technology and computer technology, electro-hydraulic servo control also starts to intelligent, integrated, function modoularization development.At present, most domestic instrument be take single-chip microcomputer as core, realizes some better simply controls.With respect in early days, present stage is all greatly improved in all fields and improves, and has met to a great extent the demand of most of application.But still there is the deficiency of several aspects: 1) control function simple.At present, most of electro-hydraulic servo control instruments all can only be realized some simple functions and control, as displacement control etc.2) functional limitation.Concerning electrohydraulic system, in control, comprise two controls on level, the electro-hydraulic servo control of " internal layer "; The function of the electrohydraulic system of " skin " is controlled.Up to the present, the function of most electro-hydraulic servo control instruments is all confined to the electro-hydraulic servo control of " internal layer "; The function of " skin " electrohydraulic system is controlled, without relating to.Therefore, while adopting electrohydraulic system to apply, need to additional on the basis of electro-hydraulic servo control instrument " skin " function control instrument toward contact.3) expandability is not enough.
Summary of the invention
The purpose of this utility model is, a kind of multiple functional, applicability is wide, expansion capability is strong Electronic-hydraulic Servo Controller based on DSP is provided.
The utility model solves the technological scheme that its technical problem adopts: a kind of Electronic-hydraulic Servo Controller based on DSP, comprise sensor, realization gathers and the load module of nursing one's health sensor signal, servocontrol module, DSP module, realize the communication module that controller and upper-position unit carry out information interaction, realization is nursed one's health and the output module of exporting the driving signal of controller output, the output terminal of sensor is connected with the input end of load module, the output terminal of load module is connected with the input end of servocontrol module, the output terminal of servocontrol module is connected with the input end of output module, DSP module respectively with load module, servocontrol module, communication module connects.
Of the present utility modelly further be set to: described DSP module comprises DSP circuit, FPGA circuit, DAC circuit, and DSP circuit is connected with communication module, and FPGA circuit is connected with DSP circuit, DAC circuit, servocontrol module respectively.
Of the present utility modelly further be set to: described load module comprises multifunctional multiplexing circuit, conditioning circuit and ADC change-over circuit, conditioning circuit is connected with multifunctional multiplexing circuit, ADC change-over circuit respectively, multifunctional multiplexing circuit is connected as the input end of load module and the output terminal of sensor, conditioning circuit is connected with servocontrol module, and ADC change-over circuit is connected with FPGA circuit as the output terminal of load module.
Of the present utility modelly further be set to: described output module comprises filter gain conditioning circuit, power amplification circuit, and filter gain conditioning circuit is connected with servocontrol module as the input end of output module.
Said structure provides a kind of servocontrol powerful Electronic-hydraulic Servo Controller, can fully take into account and meet the demand that the various compound movements in different field are controlled, complete function, height integrated degree high, can be fully, the control of complete independently to two levels of servo and function of electrohydraulic system, improved greatly the stability of execute-in-place and system, and based on above-mentioned DSP hardware structure, adopt communication module to communicate by letter with PC, can be easy to realize the expansion of control function and good on-the-spot human-computer interaction.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the principle schematic of the present embodiment;
Embodiment
Known with reference to figure 1, a kind of Electronic-hydraulic Servo Controller based on DSP of the utility model, comprises sensor, realization gathers and the load module of nursing one's health sensor signal, servocontrol module, DSP module, realize the communication module that controller and upper-position unit carry out information interaction, realization is nursed one's health and the output module of exporting the driving signal of controller output, and described DSP module comprises DSP circuit, FPGA circuit, DAC circuit, DSP circuit is connected with communication module, FPGA circuit respectively with DSP circuit, DAC circuit, servocontrol module connects, and described load module comprises multifunctional multiplexing circuit, conditioning circuit and ADC change-over circuit, conditioning circuit respectively with multifunctional multiplexing circuit, ADC change-over circuit connects, multifunctional multiplexing circuit is connected as the input end of load module and the output terminal of sensor, conditioning circuit is connected with servocontrol module, and ADC change-over circuit is connected with FPGA circuit as the output terminal of load module, and described output module comprises filter gain conditioning circuit, power amplification circuit, filter gain conditioning circuit is connected with servocontrol module as the input end of output module.
In the present embodiment, communication module adopts USB communication, can certainly be wireless telecommunications and wire communication, and servocontrol module is in conjunction with the instruction of DSP module and the signal of load module, via output module, realize the servocontrol of electrohydraulic system, in the present embodiment, adopt analog form, adopt high-accuracy amplifier chip circuit to realize.
In the utility model, the function of modules is as follows:
Load module: realize collection and the conditioning of the various sensor feedback input signals of electrohydraulic system, mainly comprise multifunctional multiplexing circuit, conditioning circuit and ADC change-over circuit.Wherein, multifunctional multiplexing circuit provides coupling and the picking up signal of multiple different sensors; Conditioning circuit is mainly realized filtering and the gain conditioning of signal, adopts high-accuracy amplifier chip to realize; ADC change-over circuit is realized the digital translation to analogue signal, adopts high-precision adc chip to realize.
Output module: realize conditioning and output that electrohydraulic system drives signal.Each mainly comprises filter gain conditioning circuit and power amplification circuit.Wherein, filter gain conditioning circuit is mainly realized filtering and the gain conditioning of signal, adopts high-accuracy amplifier chip; Power amplification circuit is realized the drive amplification of analogue signal and the way of output is controlled, and adopts high-operational amplifier to coordinate power amplifier to realize.
DSP module: digital signal is carried out to the output of processing in real time and instruction, realization is controlled the function of electrohydraulic system, the digital-to-analogue conversion output of command signal, and to load module, servocontrol module on line control, complete the data communication with communication module simultaneously.Mainly comprise DSP circuit, FPGA circuit and three parts of DAC circuit; Wherein, DSP+FPGA is the main framework of digital information processing; DAC circuit adopts highi degree of accuracy DAC chip to realize signal digital-to-analogue and transforms.
Obviously, above-described embodiment is only used to done giving an example is clearly described, and the not restriction to mode of execution.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.And the apparent variation of being extended out thus or change are still in protection domain of the present utility model.
Claims (4)
1. the Electronic-hydraulic Servo Controller based on DSP, it is characterized in that: comprise sensor, realization gathers and the load module of nursing one's health sensor signal, servocontrol module, DSP module, realize the communication module that controller and upper-position unit carry out information interaction, realization is nursed one's health and the output module of exporting the driving signal of controller output, the output terminal of sensor is connected with the input end of load module, the output terminal of load module is connected with the input end of servocontrol module, the output terminal of servocontrol module is connected with the input end of output module, DSP module respectively with load module, servocontrol module, communication module connects.
2. according to the Electronic-hydraulic Servo Controller based on DSP claimed in claim 1, it is characterized in that: described DSP module comprises DSP circuit, FPGA circuit, DAC circuit, DSP circuit is connected with communication module, and FPGA circuit is connected with DSP circuit, DAC circuit, servocontrol module respectively.
3. according to the Electronic-hydraulic Servo Controller based on DSP claimed in claim 2, it is characterized in that: described load module comprises multifunctional multiplexing circuit, conditioning circuit and ADC change-over circuit, conditioning circuit is connected with multifunctional multiplexing circuit, ADC change-over circuit respectively, multifunctional multiplexing circuit is connected as the input end of load module and the output terminal of sensor, conditioning circuit is connected with servocontrol module, and ADC change-over circuit is connected with FPGA circuit as the output terminal of load module.
4. according to the Electronic-hydraulic Servo Controller based on DSP described in claim 1 or 2 or 3, it is characterized in that: described output module comprises filter gain conditioning circuit, power amplification circuit, filter gain conditioning circuit is connected with servocontrol module as the input end of output module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320457876.XU CN203412834U (en) | 2013-07-29 | 2013-07-29 | DSP (Digital Signal Processor)-based electro-hydraulic servo controller |
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| CN201320457876.XU CN203412834U (en) | 2013-07-29 | 2013-07-29 | DSP (Digital Signal Processor)-based electro-hydraulic servo controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982491A (en) * | 2014-05-27 | 2014-08-13 | 北京敬科海工科技有限公司 | DSP (Digital Signal Processor) based electro-hydraulic position servo driver and control method |
| CN106406196A (en) * | 2016-12-21 | 2017-02-15 | 北京市佛力系统公司 | Modularized electro-hydraulic servo structure test control system |
| CN106959611A (en) * | 2017-04-07 | 2017-07-18 | 中国人民解放军63655部队 | A kind of controller of the digital electric-hydraulic servo actuator with versatility |
| CN107575427A (en) * | 2017-08-16 | 2018-01-12 | 温州亿科电子有限公司 | A kind of servo oil pump system |
-
2013
- 2013-07-29 CN CN201320457876.XU patent/CN203412834U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982491A (en) * | 2014-05-27 | 2014-08-13 | 北京敬科海工科技有限公司 | DSP (Digital Signal Processor) based electro-hydraulic position servo driver and control method |
| CN106406196A (en) * | 2016-12-21 | 2017-02-15 | 北京市佛力系统公司 | Modularized electro-hydraulic servo structure test control system |
| CN106959611A (en) * | 2017-04-07 | 2017-07-18 | 中国人民解放军63655部队 | A kind of controller of the digital electric-hydraulic servo actuator with versatility |
| CN107575427A (en) * | 2017-08-16 | 2018-01-12 | 温州亿科电子有限公司 | A kind of servo oil pump system |
| CN107575427B (en) * | 2017-08-16 | 2019-02-22 | 温州亿科电子有限公司 | A kind of servo oil pump system |
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