CN110632905A - Wireless distributed synchronous jacking system and using method thereof - Google Patents
Wireless distributed synchronous jacking system and using method thereof Download PDFInfo
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- CN110632905A CN110632905A CN201910889097.9A CN201910889097A CN110632905A CN 110632905 A CN110632905 A CN 110632905A CN 201910889097 A CN201910889097 A CN 201910889097A CN 110632905 A CN110632905 A CN 110632905A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims description 34
- 238000010276 construction Methods 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 6
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 57
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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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
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to the field of synchronous fluid pressure actuating mechanisms of two or more servo motors, in particular to a wireless distributed synchronous jacking system and a using method thereof. The utility model provides a wireless distributed synchronous jacking system, includes hydro-cylinder (1) and distributed pump station (2), the quantity of hydro-cylinder (1) and distributed pump station (2) is equal and be no less than three, characterized by: the system also comprises a master control computer (3), wherein each oil cylinder (1) is connected with a distributed pump station (2) through an oil pipeline; the distributed pump station (2) comprises a direct current motor (21), a motor driver (22), an oil pressure sensor (23), a wireless communication module (24), a hydraulic module (25), an embedded controller (26) and a power supply (27). The invention simplifies the equipment, has strong adaptability, and is safe and reliable.
Description
Technical Field
The invention relates to the field of synchronous fluid pressure actuating mechanisms of two or more servo motors, in particular to a wireless distributed synchronous jacking system and a using method thereof.
Background
The synchronous jacking system is widely applied to the engineering construction fields of building maintenance, bridge support replacement and the like. Various jacking devices in the current market are usually centralized, namely all hydraulic cylinders are powered by a unified centralized large-scale pump station, and correspond to a set of automatic control system, a proportional overflow valve is adopted to control the flow of hydraulic oil, and the control system controls a motor and a valve in the centralized pump station to finally realize synchronous control of the hydraulic cylinders.
Such a centralized control system has several problems: 1. pipelines such as oil pipes, cables and the like are numerous and are easy to be accidentally damaged on a construction site; 2. the volume and the weight of a single device are large, and large hoisting equipment is often needed in the transportation and arrangement process; 3. the expandability and the universality of the system are poor, the channel waste is easily caused when the number of the synchronous points is changed, and the system does not have the complete single-point independent control capability; 4. need connect the power electricity, need be equipped with the generator during field construction, increase construction cost and the degree of difficulty.
Disclosure of Invention
The invention discloses a wireless distributed synchronous jacking system and a using method thereof, and aims to overcome the defects of the prior art and provide a hydraulic device which is simplified in equipment, strong in adaptability, safe and reliable.
The invention achieves the purpose by the following technical scheme:
the utility model provides a wireless distributed synchronous jacking system, includes hydro-cylinder and distributed pump station, the quantity of hydro-cylinder and distributed pump station equals and is no less than three characterized by: also comprises a main control computer which is connected with the main control computer,
each oil cylinder is connected with a distributed pump station through an oil pipeline, and a piston rod of each oil cylinder is provided with a displacement sensor;
the distributed pump station comprises a direct current motor, a motor driver, an oil pressure sensor, a wireless communication module, a hydraulic module, an embedded controller and a power supply, wherein the hydraulic module comprises a valve, a pump head, an oil tank, a nozzle tip and the oil pressure sensor;
the distributed pump station is in wireless connection with the master control computer through the wireless communication module.
The wireless distributed synchronous jacking system is characterized in that:
a stay cord displacement sensor is selected as a displacement sensor on the piston rod of the oil cylinder;
the wireless communication module selects an LoRa wireless communication protocol;
in the hydraulic module: the oil tank is connected with the oil inlet end of the pump head through an oil pipe connected with a valve in series, the oil delivery end of the pump head is connected with the oil cylinder, the valve is provided with an oil pressure sensor and an oil nozzle, and an output shaft of the direct current motor is connected with the pump head;
the power supply is internally provided with an electric quantity management module;
and an operator performs read-write operation on the embedded controller through a human-computer interaction interface.
The using method of the wireless distributed synchronous jacking system is characterized in that: the method is implemented in sequence according to the following steps:
arranging oil cylinders according to construction requirements, placing distributed pump stations nearby, communicating an oil pipeline, mounting a displacement sensor on a piston rod of the oil cylinder, arranging an oil pressure sensor on a valve of a hydraulic module, and measuring the stroke of the oil cylinder through the displacement sensor or measuring the stroke of a jacking point position of the oil cylinder according to field conditions;
secondly, turning on a power button of each distributed pump station, starting a self-checking process on a master control computer, and ensuring that the oil pressure, displacement and battery electric quantity data of each distributed pump station are normal;
thirdly, a jacking project is newly built in the master control computer, and displacement grading control targets of all jacking points are input (grading control tables can be imported to be used as process control of jacking construction);
clicking a start button on a master control computer, driving each oil cylinder to start first-stage jacking control through a distributed pump station by the master control computer, jacking the component, clearing all displacement data by the master control computer at the moment, sending a displacement control value and a displacement rate of each oil cylinder jacking point to the distributed pump station correspondingly connected with the oil cylinder through calculation, and after receiving a control target instruction, locally controlling the correspondingly connected oil cylinder through an embedded controller according to the control target instruction;
fifthly, after the current stage is finished, the master control computer prompts the user, and after the user clicks to start the next stage, the master control computer starts the next stage of control;
sixthly, repeating the steps until all the jacking and lowering procedures are finished according to a preset control target;
seventhly, in the jacking process, if any one distributed pump station generates displacement or oil pressure data alarm, the master control computer suspends all the distributed pump stations; similarly, if any one distributed pump station does not complete the control target of the current stage, the master control computer cannot start the next stage of jacking control, and under all abnormal conditions, the system prompts a user to intervene manually, so that subsequent operation can be performed after the abnormal conditions are eliminated.
The invention discloses a wireless distributed synchronous jacking system, which adopts a miniaturized single-channel low-voltage direct current pump station (capable of being powered by a battery) and realizes on-site wireless ad hoc network control through wireless communication technologies such as LoRa (local area network architecture). And each single-point pump station is independently controlled by a field master control computer. The system can greatly improve the convenience, reliability and applicability of the site. Specifically, the technical features of the present invention are as follows:
1. a fully distributed (each jacking point can be independently controlled) wireless control architecture;
2. the design of a low-voltage direct current motor is adopted, the battery is used for supplying power (the default configuration battery can be used for one day, and an external large-capacity battery can be arranged or 220V commercial power can be connected for a long-term project), and large-scale power electric generating equipment is not needed
3. The jacking rate and the displacement value are accurately controlled by adopting a PID control mode for adjusting the rotating speed of the motor; compared with the control by adopting a proportional overflow valve, the control method can greatly reduce the loss of functions and hydraulic parts
4. And (3) target hierarchical synchronous control: the distributed pump stations are synchronously controlled by the system host, any pump station gives an alarm or does not finish the control of the current stage, the system cannot enter the control of the next stage, and a prompt is given
5. The invention is not limited to synchronous jacking construction, and can also be applied to synchronous jacking construction, lifting construction and the like.
The invention has the following beneficial effects:
1. convenience: the arrangement construction work of field equipment, pipelines, power supplies and the like is greatly simplified, the construction cost is reduced, and the efficiency is improved
2. High elasticity: jacking point positions can be temporarily increased or decreased according to jacking requirements or field conditions
3. High reliability: compared with a centralized scheme, the method has no risk of large-area failure of jacking points
4. High real-time performance: the distributed pump station has high-speed local control and alarm functions, and the main control computer only sends the target value and does not participate in control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a system diagram of a distributed pumping station according to the present invention;
fig. 3 is a schematic diagram of the structure of the distributed pumping station in the invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A wireless distributed synchronous jacking system comprises an oil cylinder 1, a distributed pump station 2 and a master control computer 3, and is specifically structured as shown in figures 1-3:
the number of the oil cylinders 1 and the number of the distributed pump stations 2 are equal and are not less than three, each oil cylinder 1 is connected with one distributed pump station 2 through an oil pipeline, and a piston rod of each oil cylinder 1 is provided with a displacement sensor;
the distributed pumping station 2 is shown in fig. 2 and 3: the distributed pump station 2 comprises a direct current motor 21, a motor driver 22, an oil pressure sensor 23, a wireless communication module 24, a hydraulic module 25, an embedded controller 26 and a power supply 27, wherein the hydraulic module 25 comprises a valve 251, a pump head 252, an oil tank 253 and an oil nozzle 254, the motor driver 22 is connected with the direct current motor 21 through a signal line, the motor driver 22, the oil pressure sensor 23, the wireless communication module 24 and the hydraulic module 25 are all connected with the embedded controller 26 through signal lines, the power supply 27 is respectively connected with the direct current motor 21, the motor driver 22, the oil pressure sensor 23, the wireless communication module 24, the hydraulic module 25 and the embedded controller 26 through wires, and an output shaft of the direct current motor 21 is connected with the pump head 252 of the hydraulic module 25;
the distributed pump station 2 is wirelessly connected with the master control computer 3 through a wireless communication module 24.
In this embodiment:
a displacement sensor on a piston rod of the oil cylinder 1 is a pull rope displacement sensor;
the wireless communication module 24 selects an LoRa wireless communication protocol;
the hydraulic module 25 is shown in fig. 3: in the hydraulic module 25: the oil tank 253 is connected with the oil inlet end of the pump head 252 through an oil pipe connected with a valve 251 in series, the oil delivery end of the pump head 252 is connected with the oil cylinder 1, the valve 251 is provided with an oil pressure sensor 23 and an oil nozzle 254, and the output shaft of the direct current motor 21 is connected with the pump head 252;
the power supply 27 is internally provided with an electric quantity management module;
an operator performs read and write operations on the embedded controller 26 through the human machine interface 28.
When the method is used, the steps are implemented in sequence as follows:
arranging an oil cylinder 1 according to construction requirements, placing a distributed pump station 2 nearby, communicating an oil pipeline, mounting a displacement sensor on a piston rod of the oil cylinder 1, arranging an oil pressure sensor 23 on a valve 251 of a hydraulic module 25, and measuring the stroke of the oil cylinder 1 through the displacement sensor or measuring the stroke of a jacking point position of the oil cylinder 1 according to field conditions;
secondly, turning on a power button of each distributed pump station 2, starting a self-checking process on the master control computer 3, and ensuring that the oil pressure, displacement and battery electric quantity data of each distributed pump station 2 are normal;
thirdly, a jacking project is newly built in the main control computer 3, and displacement grading control targets of all jacking points are input (grading control tables can be input to be used as process control of jacking construction);
fourthly, clicking a start button on the main control computer 3, driving each oil cylinder 1 to start the first-stage jacking control through the distributed pump station 2 by the main control computer 3, jacking the component 4, clearing all displacement data by the main control computer 3 at this time, and sending a displacement control value and a displacement speed of a jacking point of each oil cylinder 1 to the distributed pump station 2 correspondingly connected with the oil cylinder 1 through calculation, and after receiving a control target instruction by the distributed pump station 2, performing local control on the correspondingly connected oil cylinder 1 through the embedded controller 26 according to the control target instruction;
after the current stage is finished, the main control computer 3 prompts the user, and after the user clicks to start the next stage, the main control computer 3 starts the next stage control;
sixthly, repeating the steps until all the jacking and lowering procedures are finished according to a preset control target;
seventhly, in the jacking process, if any one distributed pump station 2 generates displacement or oil pressure data alarm, the master control computer 3 pauses all the distributed pump stations 2; similarly, if any one of the distributed pump stations 2 does not complete the control target of the current stage, the main control computer 3 cannot start the next stage of jacking control, and under all abnormal conditions, the system prompts the user to intervene manually, so that subsequent operations can be performed after the abnormal conditions are eliminated.
Claims (3)
1. The utility model provides a wireless distributed synchronous jacking system, includes hydro-cylinder (1) and distributed pump station (2), the quantity of hydro-cylinder (1) and distributed pump station (2) is equal and be no less than three, characterized by: also comprises a main control computer (3),
each oil cylinder (1) is connected with a distributed pump station (2) through an oil pipeline, and a piston rod of each oil cylinder (1) is provided with a displacement sensor;
the distributed pump station (2) comprises a direct current motor (21), a motor driver (22), an oil pressure sensor (23), a wireless communication module (24), a hydraulic module (25), an embedded controller (26) and a power supply (27), the hydraulic module (25) comprises a valve (251), a pump head (252), an oil tank (253) and an oil nozzle (254), a motor driver (22) is connected with the direct current motor (21) through a signal line, the motor driver (22), the oil pressure sensor (23), the wireless communication module (24) and the hydraulic module (25) are connected with the embedded controller (26) through signal lines, a power supply (27) is respectively connected with the direct current motor (21), the motor driver (22), the oil pressure sensor (23), the wireless communication module (24), the hydraulic module (25) and the embedded controller (26) through wires, and an output shaft of the direct current motor (21) is connected with the pump head (252) of the hydraulic module (25);
the distributed pump station (2) is wirelessly connected with the master control computer (3) through a wireless communication module (24).
2. The wireless distributed synchronous jacking system of claim 1, wherein:
a displacement sensor on a piston rod of the oil cylinder (1) adopts a pull rope displacement sensor;
the wireless communication module (24) selects an LoRa wireless communication protocol;
in the hydraulic module (25): the oil tank (253) is connected with the oil inlet end of the pump head (252) through an oil pipe connected with the valve (251) in series, the oil delivery end of the pump head (252) is connected with the oil cylinder (1), the valve (251) is provided with an oil pressure sensor (23) and an oil nozzle (254), and the output shaft of the direct current motor (21) is connected with the pump head (252);
the power supply (27) is internally provided with an electric quantity management module;
an operator carries out read-write operation on the embedded controller (26) through the man-machine interaction interface (28).
3. The use method of the wireless distributed synchronous jacking system as claimed in claim 1 or 2, wherein: the method is implemented in sequence according to the following steps:
arranging an oil cylinder (1) according to construction requirements, placing a distributed pump station (2) nearby, communicating an oil pipeline, mounting a displacement sensor on a piston rod of the oil cylinder (1), arranging an oil pressure sensor (23) on a valve (251) of a hydraulic module (25), and measuring the stroke of the oil cylinder (1) or measuring the stroke of a jacking point position of the oil cylinder (1) through the displacement sensor;
secondly, a power button of each distributed pump station (2) is turned on, a self-checking process is started on the main control computer (3), and the oil pressure, displacement and battery electric quantity data of each distributed pump station (2) are ensured to be normal;
thirdly, a jacking project is newly built in the master control computer (3), and displacement grading control targets of all jacking points are input;
clicking a start button on the main control computer (3), driving each oil cylinder (1) by the main control computer (3) through the distributed pump station (2) to start the control of first-stage jacking, jacking the component (4), resetting all displacement data by the main control computer (3) at the moment, sending a displacement control value and a displacement speed of a jacking point of each oil cylinder (1) to the distributed pump station (2) correspondingly connected with the oil cylinder (1) through calculation, and after receiving a control target instruction, implementing local control on the correspondingly connected oil cylinder (1) through the embedded controller (26) according to the control target instruction by the distributed pump station (2);
after the current level is finished, the master control computer (3) prompts the user, and after the user clicks to start the next level, the master control computer (3) starts the next level control;
sixthly, repeating the steps until all the jacking and lowering procedures are finished according to a preset control target;
seventhly, in the jacking process, if any one distributed pump station (2) generates displacement or oil pressure data alarm, the master control computer (3) suspends all the distributed pump stations (2); similarly, if any one distributed pump station (2) does not complete the control target of the current stage, the main control computer (3) cannot start the next stage of jacking control, and under all abnormal conditions, the system prompts the user to intervene manually, and after the abnormal conditions are eliminated, subsequent operation can be performed.
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| CN201910889097.9A CN110632905A (en) | 2019-09-20 | 2019-09-20 | Wireless distributed synchronous jacking system and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111612997A (en) * | 2020-05-14 | 2020-09-01 | 中电工业互联网有限公司 | Real-time grading alarm system and method for concrete pump truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111612997A (en) * | 2020-05-14 | 2020-09-01 | 中电工业互联网有限公司 | Real-time grading alarm system and method for concrete pump truck |
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