CN205334120U - Hydraulic pressure shaking table controller - Google Patents
Hydraulic pressure shaking table controller Download PDFInfo
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- CN205334120U CN205334120U CN201620055636.0U CN201620055636U CN205334120U CN 205334120 U CN205334120 U CN 205334120U CN 201620055636 U CN201620055636 U CN 201620055636U CN 205334120 U CN205334120 U CN 205334120U
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Abstract
The utility model provides a hydraulic pressure shaking table controller, includes PID control module and the set signal processing module, feedback signal processing module and the control signal processing module that link to each other with PID control module, PID control module pass through HMI communication module and connect the touch -sensitive screen, set signal processing module connects voltage type set signal and current mode set signal, feedback signal processing module connects LVDT feedback signal, voltage type feedback signal and current mode feedback signal, communication module 1 processing module connects voltage type communication module 1 and current mode communication module 1. The utility model discloses a closed -cycle control sets up set signal processing module, feedback signal processing module and control signal processing module around PID control module, can realize data acquisition, output, high speed control logic simultaneously, greatly reduced the circuit plate size, the cooperation sets up the touch -sensitive screen and has reduced the set signal 0 volume, has reduced set signal 1.
Description
Technical field
This utility model relates to hydraulic vibration gen control field, is specifically related to a kind of hydraulic vibration gen controller。
Background technology
Vibration table is used for the various vibration environments that analog equipment complete machine or parts meet with in manufacture, assembling, transport and operational phase thereof, for identifying that product complete machine or parts stand the ability of ambient vibration。
Hydraulic drive is big due to its strength, operates steadily, possesses the advantages such as self-locking performance, extensive use vibration table。Patent CN102163042B proposes control device and the control method thereof of a kind of hydraulic vibration active isolation platform, but it has a problem in that:
1: integrated level is low, volume is big, it has not been convenient to installs, use；
2: controlling to relate to link many, control the cycle slow, control algolithm is complicated。
Utility model content
The purpose of this utility model is in that for above-mentioned the problems of the prior art, it is provided that a kind of integrated level is high, and fast operation controls the cycle short, controls the simple hydraulic vibration gen controller of process。
To achieve these goals, the technical solution adopted in the utility model is: include pid control module and the Setting signal processing module being connected with pid control module, feedback signal processing module and control signal processing module；Described pid control module connects touch screen by HMI communication module, Setting signal processing module connects voltage-type Setting signal and current mode Setting signal, feedback signal processing module connects LVDT feedback signal, voltage-type feedback signal and current mode feedback signal, and control signal processing module connects voltage mode control signal and current-mode control signal。
Described HMI communication module connects stopping signal processing module; the input of described stopping signal processing module is connected manual shut-down operation signal through photoelectric isolation module with Signal-regulated kinase, and the outfan of described stopping signal processing module is connected manual shut-down status signal through driving module with relay。
Described pid control module, control signal processing module, feedback signal processing module, Setting signal processing module, stopping signal processing module and HMI communication module are integrated in fpga chip。
Described voltage-type Setting signal is connected Setting signal processing module through Signal-regulated kinase with analog-to-digital conversion module, and described current mode Setting signal connects Setting signal processing module through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。
Described LVDT feedback signal and voltage-type feedback signal are connected feedback signal processing module through Signal-regulated kinase with analog-to-digital conversion module respectively, and described current mode feedback signal connects feedback signal processing module through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。
Described control signal processing module is connected voltage mode control signal through D/A converter module with Signal-regulated kinase, and control signal processing module connects and V/I modular converter connection current-mode control signal through D/A converter module, Signal-regulated kinase。
Described voltage mode control signal or current-mode control signal connect electrohydraulic servo valve, and electrohydraulic servo valve controls vibration table vibration by controlling the turnover speed oil of hydraulic jack。
Compared with prior art, this utility model has following beneficial effect: adopt closed loop to regulate, around pid control module, Setting signal processing module, feedback signal processing module and control signal processing module are set, data acquisition, output, High-speed Control logic can be realized simultaneously, greatly reduce the size of circuit board, be equipped with touch screen and reduce control system bulk。By integrated circuit, the device reduces product cost, improve availability and the ease for use of product, reduce maintenance and selling cost。
Further; this utility model pid control module, control signal processing module, feedback signal processing module, Setting signal processing module, stopping signal processing module and HMI communication module are integrated in fpga chip; the characteristic of FPGA full parellel computing makes arithmetic speed be obviously improved; significantly shorten the control cycle; after controlling cycle time; namely being capable of better controlling effect by simpler algorithm, stability is high, and capacity of resisting disturbance is strong。
Accompanying drawing explanation
Fig. 1 modular structure block diagram of the present utility model；
Fig. 2 instruction interaction block diagram of the present utility model；
In accompanying drawing: 1-PID controls module；2-control signal processing module；3-feedback signal processing module；4-Setting signal processing module；5-stopping signal processing module；6-HMI communication module；7-touch screen。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail。
Referring to Fig. 1,2, this utility model structurally includes pid control module 1 and the Setting signal processing module 4, feedback signal processing module 3 and the control signal processing module 2 that are connected with pid control module 1；Pid control module 1 connects touch screen 7 by HMI communication module 6。HMI communication module 6 connects stopping signal processing module 5; stopping signal processing module 5 input is connected manual shut-down operation signal through photoelectric isolation module with Signal-regulated kinase, and stopping signal processing module 5 outfan is connected manual shut-down status signal through driving module with relay。Pid control module 1, control signal processing module 2, feedback signal processing module 3, Setting signal processing module 4, stopping signal processing module 5 and HMI communication module 6 are integrated in fpga chip。Voltage-type Setting signal is connected Setting signal processing module 4 through Signal-regulated kinase with analog-to-digital conversion module, and current mode Setting signal connects Setting signal processing module 4 through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。LVDT feedback signal and voltage-type feedback signal are connected feedback signal processing module 3 through Signal-regulated kinase with analog-to-digital conversion module respectively, and current mode feedback signal connects feedback signal processing module 3 through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。Control signal processing module 2 is connected voltage mode control signal through D/A converter module with Signal-regulated kinase, and control signal processing module 2 connects and V/I modular converter connection current-mode control signal through D/A converter module, Signal-regulated kinase。
This utility model connects electrohydraulic servo valve by voltage mode control signal or current-mode control signal, electrohydraulic servo valve controls the turnover speed oil of hydraulic jack and controls vibration table vibration, vibrate to be sensed by LVDT or laser displacement and feed back, controller collection feedback displacement is in order to FPGA closed loop control, dynamically regulate the voltage x current driving servo valve, it is achieved vibration table steady operation。
Controller specification of the present utility model:
A. controller is powered: 18～32VDC；
B. control signal output:
Within 1 tunnel output electric current :-200mA～200mA, output area can be limited；
Within 1 road output voltage :-10V～10V, output area can be limited；
C. feedback signal collection:
LVDT inputs signal: 1 tunnel, is suitable for 3,4,5, the 6 various LVDT of line system；
Analog quantity current input signal: 1 tunnel, 0～20mA；
Analog quantity voltage input signal: 1 tunnel ,-10V～10V；
D. outside given input:
Analog quantity current input signal: 1 tunnel, 0～20mA；
Analog quantity voltage input signal: 1 tunnel ,-10V～10V；
E. manual shut-down input:
On-off signal signal: 1 tunnel, dry contact inputs；
F. manual shut-down output:
Switching value output signal: 1 road dry contact output；
G. communication signal:
1 road RS485 communication port, MODBUS communications protocol；
1 road EPA interface。
Claims (7)
1. a hydraulic vibration gen controller, it is characterised in that: include pid control module (1) and the Setting signal processing module (4), feedback signal processing module (3) and the control signal processing module (2) that are connected with pid control module (1)；Described pid control module (1) connects touch screen (7) by HMI communication module (6), Setting signal processing module (4) connects voltage-type Setting signal and current mode Setting signal, feedback signal processing module (3) connects LVDT feedback signal, voltage-type feedback signal and current mode feedback signal, and control signal processing module (2) connects voltage mode control signal and current-mode control signal。
2. hydraulic vibration gen controller according to claim 1; it is characterized in that: HMI communication module (6) connects stopping signal processing module (5); stopping signal processing module (5) input is connected manual shut-down operation signal through photoelectric isolation module with Signal-regulated kinase, and stopping signal processing module (5) outfan is connected manual shut-down status signal through driving module with relay。
3. hydraulic vibration gen controller according to claim 2, it is characterised in that: described pid control module (1), control signal processing module (2), feedback signal processing module (3), Setting signal processing module (4), stopping signal processing module (5) and HMI communication module (6) are integrated in fpga chip。
4. hydraulic vibration gen controller according to claim 1, it is characterized in that: described voltage-type Setting signal is connected Setting signal processing module (4) through Signal-regulated kinase with analog-to-digital conversion module, and described current mode Setting signal connects Setting signal processing module (4) through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。
5. hydraulic vibration gen controller according to claim 1, it is characterized in that: described LVDT feedback signal and voltage-type feedback signal are connected feedback signal processing module (3) through Signal-regulated kinase with analog-to-digital conversion module respectively, and described current mode feedback signal connects feedback signal processing module (3) through I/V modular converter, Signal-regulated kinase and analog-to-digital conversion module。
6. hydraulic vibration gen controller according to claim 1, it is characterized in that: described control signal processing module (2) is connected voltage mode control signal through D/A converter module with Signal-regulated kinase, and control signal processing module (2) connects and V/I modular converter connection current-mode control signal through D/A converter module, Signal-regulated kinase。
7. hydraulic vibration gen controller according to claim 1, it is characterised in that: described voltage mode control signal or current-mode control signal connect electrohydraulic servo valve, and electrohydraulic servo valve controls vibration table vibration by controlling the turnover speed oil of hydraulic jack。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055636.0U CN205334120U (en) | 2016-01-20 | 2016-01-20 | Hydraulic pressure shaking table controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055636.0U CN205334120U (en) | 2016-01-20 | 2016-01-20 | Hydraulic pressure shaking table controller |
Publications (1)
| Publication Number | Publication Date |
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| CN205334120U true CN205334120U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620055636.0U Expired - Fee Related CN205334120U (en) | 2016-01-20 | 2016-01-20 | Hydraulic pressure shaking table controller |
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| Country | Link |
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| CN (1) | CN205334120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420450A (en) * | 2022-08-21 | 2022-12-02 | 哈尔滨工业大学 | Electromagnetic vibration table system based on drive current feedback control |
-
2016
- 2016-01-20 CN CN201620055636.0U patent/CN205334120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420450A (en) * | 2022-08-21 | 2022-12-02 | 哈尔滨工业大学 | Electromagnetic vibration table system based on drive current feedback control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20200120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |