CN107765580A - A kind of hydraulic synchronization slip control system based on CAN - Google Patents
A kind of hydraulic synchronization slip control system based on CAN Download PDFInfo
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- CN107765580A CN107765580A CN201610691112.5A CN201610691112A CN107765580A CN 107765580 A CN107765580 A CN 107765580A CN 201610691112 A CN201610691112 A CN 201610691112A CN 107765580 A CN107765580 A CN 107765580A
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- control system
- lpc2119
- system based
- hydraulic
- hydraulic synchronization
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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
- G05B2219/25—Pc structure of the system
- G05B2219/25338—Microprocessor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of hydraulic synchronization slip control system based on CAN, system employs the hydraulic synchronization control technology based on CAN, using bus-network topological structure, main control cabinet controller, 2 hydraulic power unit controllers and 4 cylinder sensors are connected using CAN, form a communication network.The Control System Design is reasonable, stable, system configuration is flexible, easy to operate, and the use of CAN enormously simplify the wiring at scene, and improve the accuracy and real-time of data transfer.
Description
Art
The present invention relates to a kind of hydraulic synchronization slip control system based on CAN, suitable for mechanical field.
Background technology
Hydraulic synchronization sliding technology is a kind of skill for integrating machinery, electronics, hydraulic pressure, sensor, communication and computer
Art, it is mainly used in the translation installation of the medium-and-large-sized component of modern project.In recent years, with
The extensive use and development of hydraulic synchronization sliding technology, higher requirement is it is also proposed to its control system：It is required that simplify
Field wiring, the control accuracy for improving system and response speed etc., advantage of the CAN in terms of real-time and reliability can be very
Meet these requirements well, ensure system high efficiency reliability service.
Hydraulic synchronization sliding system mainly by hydraulic pusher (including hydraulic jack and rail clamping device), hydraulic power system,
Senser element and computer control system etc. composition systems basic functional principle be：The rail clamping device of hydraulic pusher is held on
Ground rail, under the instruction of computer control system, hydraulic jack alternates flexible, large-scale component is connected forward along track
It is continuous simultaneously advance the technologies have equipment volume it is small, from heavy and light, large carrying capacity, security reliability is good, automaticity is high,
The advantages that flexible to operation.
CAN is a kind of relatively more extensive advanced fieldbus of current application, can effectively support serial communication net
The distributed AC servo system of network and in real time control it have that data transmission rate is high, communication distance is remote, bus utilization is high, hardware error
The features such as treatment mechanism and high electromagnetism interference.
The content of the invention
The present invention proposes a kind of hydraulic synchronization slip control system based on CAN, and system employs total based on CAN
The hydraulic synchronization control technology of line, the Control System Design is reasonable, stable, system configuration is flexible, easy to operate, and CAN is total
The use of line enormously simplify the wiring at scene, and improve the accuracy and real-time of data transfer.
The technical solution adopted in the present invention is.
The control system uses bus-network topological structure, main control cabinet controller, 2 hydraulic power unit controllers and
4 cylinder sensors are connected using CAN, form a communication network.Wherein, main control cabinet controller acquisition control panel
On operation signal, by CAN receive cylinder sensor send oil cylinder status data, perform synchronization control algorithm obtain
Control data is simultaneously sent to pump station controller by CAN；Pump station controller receives what main control cabinet was sent by CAN
Control instruction, perform the output of switching value and analog quantity；Cylinder sensor collection oil cylinder status data (including run-length data and oil
Press data), oil cylinder status data is sent to by main control cabinet by CAN.
The main control cabinet of the control system uses LPC2119 processors as core, and LPC2119 is that Dutch grace intelligence Pu is partly led
A support real-time simulation of body (NXP) company and the ARM7TDMI-S microprocessors of tracking, in piece up to 64kB it is static with
Machine access memory (SRAM）, there is larger buffering area scale and powerful disposal ability, be internally integrated 2 CAN controls
Device, 2 32 bit timing counters and 4 ADC (Analog-to-Digital Converter) element circuits.
Using LPC2119 processors as core, BTS621 driving output modules are used for the pump station controller of the control system
Driving inductive load, such as reversal valve and proportioning valve, maximum can drive 16 tunnels, wherein 4 tunnels can be used for PWM (Pulse Width
Modulation) drive, the 3rd, 6 pin of BTS621 driving chips is input control terminal, and the 1st, 7 pin is drive output, when the 3rd
The 1st pin of corresponding output or the 7th pin are also high level when pin or the input of the 6th pin are high level, input and are exported to be corresponded to during low level
Also it is low level.
The cylinder sensor of the control system is using LPC2119 processors as core, in order to improve analog quantity sampling precision,
The reference voltage of LPC2119 analog powers is provided by TL431, while the ground wire of analog quantity and digital quantity ground wire use single-point grounding
Mode, 4 ~ 20mA of analog input end input current signal first pass through high-accuracy resistance and are converted into voltage signal, analog voltage
LPC2119 is input to, carries out voltage sample, sampling precision is 1024, the flexible stroke of RS-422 communication modules measurement oil cylinder
Encoder is SSI (Synchronous Serial Interface) pattern, has even few advantage, is to avoid doing in circuit
Disturb, individually use a power isolation module B0505T-1W, sending and receiving signal is switched to one using MAX487 chips in communication
Signal is input to LPC2119.
The beneficial effects of the invention are as follows：The Control System Design is reasonable, stable, system configuration is flexible, easy to operate,
The use of CAN enormously simplify the wiring at scene, and improve the accuracy and real-time of data transfer.
Brief description of the drawings
Fig. 1 is the main control cabinet hardware block diagram of the present invention.
Fig. 2 is the pump station controller hardware block diagram of the present invention.
Fig. 3 is the cylinder sensor hardware block diagram of the present invention.
Fig. 4 is the main control cabinet program flow diagram of the present invention.
Fig. 5 is the pump station controller program flow diagram of the present invention.
Fig. 6 is the cylinder sensor program flow diagram of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, control system uses bus-network topological structure, main control cabinet controller, 2 hydraulic power unit controllers
Connected with 4 cylinder sensors using CAN, form a communication network.Wherein, main control cabinet controller acquisition control face
Operation signal on plate, the oil cylinder status data of cylinder sensor transmission is received by CAN, perform synchronization control algorithm and obtain
Pump station controller is sent to control data and by CAN；Pump station controller receives main control cabinet by CAN and sent
Control instruction, perform the output of switching value and analog quantity；Cylinder sensor collection oil cylinder status data (including run-length data and
Oil pressure data), oil cylinder status data is sent to by main control cabinet by CAN.
The performance of synchronous control system based on CAN mainly includes：（1）The real-time of data processing, system can be real
When monitor the displacement data of each point；（2）Stronger error correcting capability, system possess intelligent correction ability, can shield and prompt
Maloperation；（3）Communicate automatic repair ability, and communication disruption caused by scene is artificial can connect automatically after hardware reconnect.
Main control cabinet uses LPC2119 processors as core, and LPC2119 is Dutch grace intelligence Pu semiconductor (NXP) company
A ARM7TDMI-S microprocessors for supporting real-time simulation and tracking, up to 64kB static RAM in piece
(SRAM）, there is larger buffering area scale and powerful disposal ability, be internally integrated 2 CAN controllers, 2 32 it is fixed
Hour counter and 4 ADC (Analog-to-Digital Converter) element circuits.
Such as Fig. 2, using LPC2119 processors as core, BTS621 driving output modules are used to drive perception pump station controller
Load, such as reversal valve and proportioning valve, maximum can drive 16 tunnels, wherein 4 tunnels can be used for PWM (Pulse Width Modulation)
Driving, the 3rd, 6 pin of BTS621 driving chips is input control terminal, and the 1st, 7 pin is drive output, when the 3rd pin or the 6th pin are defeated
It is also high level to enter to correspond to the 1st pin of output or the 7th pin during high level, and it is also low level to input to correspond to output during low level.
Such as Fig. 3, cylinder sensor is using LPC2119 processors as core, in order to improve analog quantity sampling precision, LPC2119
The reference voltage of analog power is provided by TL431, while the ground wire of analog quantity and digital quantity ground wire use single-point grounding mode, mould
4 ~ 20mA of analog quantity input end input current signal first passes through high-accuracy resistance and is converted into voltage signal, and analog voltage is input to
LPC2119, voltage sample is carried out, sampling precision is 1024, the encoder of the flexible stroke of RS-422 communication modules measurement oil cylinder
For SSI (Synchronous Serial Interface) pattern, there is even few advantage, be to avoid disturbing in circuit, it is single
Solely use a power isolation module B0505T-1W, use MAX487 chips that sending and receiving signal is switched into a signal in communication defeated
People is to LPC2119.
Such as Fig. 4, on main control cabinet after electricity, modules initialization, including I/O mouths, timer, serial ports, CAN are carried out first
Controller and interruption initialize, and after initialization, system enters timer interrupt service program and CAN is received to interrupt and serviced journey
Sequence, simultaneity factor wait string control to shield initialization and complete and control to shield to establish with string to communicate, and subsequently enter while bulk circulation structures
Timer interrupt service program realizes the transmission of CAN data (pumping plant control command data), and CAN receives interrupt service routine and realized
The reception of oil cylinder status data, maximum is inclined between while bulk circulation structures realize benchmark oil cylinder stroke and follow oil cylinder stroke
The reading of calculating, the local operation instruction of difference and the multidate information of string control screen are shown.
Such as Fig. 5, in pump station controller after electricity, modules initialization, including I/O mouths, PWM module, CAN control are carried out first
Device processed and interruption initialize.After initialization, system enters CAN and receives interrupt service routine, and simultaneity factor enters while master
Body circulation structure.CAN receives the reception that interrupt service routine realizes the control command that main control cabinet is sent, while bulk circulations
Structure realizes that the output driving that pumping plant is performed according to the control command received controls.
Such as Fig. 6, on cylinder sensor after electricity, modules initialization, including I/O mouths, ADC, CAN control are carried out first
Device processed and interruption initialize.After initialization, system enters timer interrupt service program, and simultaneity factor enters while master
Body circulation structure timer interrupt service programs realize the transmission of CAN data (oil cylinder status data), while bulk circulation knots
Structure realizes the reading of cylinder oil data and run-length data.
Claims (4)
1. a kind of hydraulic synchronization slip control system based on CAN, it is characterized in that：The control system uses bus-type net
Network topological structure, main control cabinet controller, 2 hydraulic power unit controllers and 4 cylinder sensors are connected using CAN, group
Into a communication network.
2. a kind of hydraulic synchronization slip control system based on CAN according to claim 1, it is characterized in that：It is described
The main control cabinet of control system uses LPC2119 processors as core, and LPC2119 is Dutch grace intelligence Pu semiconductor (NXP) company
A support real-time simulation and tracking ARM7TDMI-S microprocessors, up to 64kB static RAM in piece
(SRAM）, there is larger buffering area scale and powerful disposal ability, be internally integrated 2 CAN controllers, 2 32 it is fixed
Hour counter and 4 ADC (Analog-to-Digital Converter) element circuits.
3. a kind of hydraulic synchronization slip control system based on CAN according to claim 1, it is characterized in that：It is described
For the pump station controller of control system using LPC2119 processors as core, BTS621 driving output modules are used for driving inductive load.
4. a kind of hydraulic synchronization slip control system based on CAN according to claim 1, it is characterized in that：It is described
The cylinder sensor of control system is using LPC2119 processors as core, in order to improve analog quantity sampling precision, LPC2119 simulations
The reference voltage of power supply is provided by TL431, while the ground wire of analog quantity and digital quantity ground wire use single-point grounding mode, analog quantity
4 ~ 20mA of input input current signal first passes through high-accuracy resistance and is converted into voltage signal, and analog voltage is input to
LPC2119, voltage sample is carried out, sampling precision is 1024, the encoder of the flexible stroke of RS-422 communication modules measurement oil cylinder
For SSI (Synchronous Serial Interface) pattern, there is even few advantage, be to avoid disturbing in circuit, it is single
Solely use a power isolation module B0505T-1W, use MAX487 chips that sending and receiving signal is switched into a signal in communication defeated
Enter to LPC2119.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691112.5A CN107765580A (en) | 2016-08-20 | 2016-08-20 | A kind of hydraulic synchronization slip control system based on CAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691112.5A CN107765580A (en) | 2016-08-20 | 2016-08-20 | A kind of hydraulic synchronization slip control system based on CAN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107765580A true CN107765580A (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610691112.5A Pending CN107765580A (en) | 2016-08-20 | 2016-08-20 | A kind of hydraulic synchronization slip control system based on CAN |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228430A (en) * | 2020-09-19 | 2021-01-15 | 中交三航(南通)海洋工程有限公司 | Remote control system for sliding device |
-
2016
- 2016-08-20 CN CN201610691112.5A patent/CN107765580A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228430A (en) * | 2020-09-19 | 2021-01-15 | 中交三航(南通)海洋工程有限公司 | Remote control system for sliding device |
| CN112228430B (en) * | 2020-09-19 | 2022-03-25 | 中交三航(南通)海洋工程有限公司 | Remote control system for sliding device |
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Application publication date: 20180306 |