CN203476374U - Hydraulic support electrohydraulic control system - Google Patents
Hydraulic support electrohydraulic control system Download PDFInfo
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- CN203476374U CN203476374U CN201320539748.XU CN201320539748U CN203476374U CN 203476374 U CN203476374 U CN 203476374U CN 201320539748 U CN201320539748 U CN 201320539748U CN 203476374 U CN203476374 U CN 203476374U
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Abstract
The utility model discloses a hydraulic support electrohydraulic control system and belongs to the technical field of automatic control of hydraulic supports. The hydraulic support electrohydraulic control system is characterized in that basal information subnets are grouped through an ASI bus and communicated through a CAN bus, the different information subnets are communicated through an isolation coupler, a system control layer network is formed, a control layer is connected with a tunnel mainframe through an underground network port, and the underground work face tunnel mainframe is used for central control and central management of a work face control system communication network through a network converter and submits work face data to a surface mainframe through an underground ring looped network switch. An implementation method based on the system includes: one controller is used to control a plurality of hydraulic supports for the basal network, so that communication nodes of the control layer CAN bus are reduced. Through the application of the hydraulic support electrohydraulic control system, the technical problems that too many CAN bus nodes are used in the existing support electrohydraulic control system, power supply design of the existing support electrohydraulic control system is complex, and connection of system equipment communication lines is too complex in the existing system are effectively solved.
Description
Technical field
The utility model relates to a kind of hydraulic support electrohydraulic control system, specifically relates to a kind of novel full face mine hydraulic bracket centralized control system based on ASI bus, belongs to hydraulic support automatic control technology field.
Background technology
As far back as the 1950's, just begun one's study each main producing coal state of the telecontrol engineering ，50 Duo Nianlai， world of hydraulic support of Britain is all actively developing the research of hydraulic support electrohydraulic control system.China from 20th century the mid-80 start to develop hydraulic support electrohydraulic control system.At present, domestic conventional hydraulic support electrohydraulic control system all adopts controller of a hydraulic support, and between controller, adopt CAN bus to communicate, communicating by letter between controller and sensor and actuator adopts traditional RS485 standard, set up star-like master-slave mode centralized Control LAN, this RS485 is first floor (basic unit), CAN is that (product also having has crossheading controller for the double-layer structure of the second layer (key-course), by the network port of bracket controller and the CAN bus network of key-course, be connected, form the 3rd layer of Industrial Personal Computer (IPC) or server, form the 3rd layer-management layer, the product also having can configure ground-based server and manage concentratedly being transferred to the database on ground, forms Si Ceng service layer) existence following some serious defect and deficiency:
(1) quantity of actual colliery hydraulic support on underground working surface can reach more than 120, and on the number of nodes of CAN bus, being limited to 110, controller of a hydraulic support can approach even over CAN number of bus nodes object greatest limit the communication node number of key-course.So the structure of a controller of a hydraulic support causes the communication node of key-course too much, make the communication complexity of key-course too high, then make the real-time of key-course network and reliability impaired.
(2) the communication line wiring of whole control system equipment is too much.Because controller of a hydraulic support makes each controller, to carry out full duplex serial communication with two adjacent controllers, at least need between any two two data lines, make the wiring of whole key-course very complicated; In addition first floor (basic unit) network of at present domestic electrohydraulic control system adopts RS485 communication conventionally, RS485 bus adopts a bus that each node is connected in series, do not support annular or Star Network structure, if need to use annular or Star Network structure, just must use 485 repeaters or 485 hubs just can realize.
(3) power supply of whole control system design is complicated.The design of a controller of a hydraulic support makes too much hydraulic bracket controller be grouped because of power supply relation, and adjacent maximum six to seven controller You Yi roads are DC power supply independently, becomes a controller group.The partition of power supply makes between group and group, also to need to access an isolating coupler, it has cut off electric connection the between group and group, and need to pass through photoelectric coupling interchange data signal, although this mode is the unavoidable measure of taking in order to reach intrinsic safety the subject of knowledge and the object of knowledge, make the complexity of whole system power supply design too high.
Utility model content
The problem existing for above-mentioned prior art, the utility model provides a kind of hydraulic support electrohydraulic control system, apply easy, transmission is quick, reliable in function, can greatly reduce the interstitial content of key-course CAN bus communication, significantly simplify the complexity of wiring, the obviously power supply of Optimal Control System design.
To achieve these goals, this hydraulic support electrohydraulic control system comprises ground monitoring computer, tunnel main frame, mine automated network, isolating coupler, hydraulic support electrohydraulic control unit, shearer position transducer and feed cable; In system, centered by each hydraulic bracket controller, form an information subnet, the hydraulic bracket controller between information subnet is by CAN bus communication, and information subnet forms work plane control system communication network by isolating coupler; Tunnel main frame carries out centralized Control and centralized management by network transformation device to work plane control system communication network, and work plane data are reported and submitted to ground host machine by down-hole ring exchanger;
Hydraulic bracket controller is connected with ASI bus host, ASI bus host is connected in ASI bus, form ASI bus master, first ASI bus host chip is installed on a hydraulic bracket controller and is formed Yi Tai main website, then main website is arranged on one group of intermediate support by many hydraulic supports, on every hydraulic support, be distributed with slave station, the sensor on every hydraulic support and actuator all be take hydraulic support and are connected in ASI bus as unit addressing;
Independent ASI interface module is arranged on every hydraulic support as slave, pressure sensor on every hydraulic support, infrared sensor, stroke sensor and electromagnetic coil drive are all connected on the slave of this support, every slave is all connected in ASI bus, forms separate type ASI bus slave station;
Yi Ge main website is connected and is formed an information subnet by ASI bus with 32 slave stations at the most, and the supply unit on network provides working power by ASI bus to main frame and slave.
Yi Ge main website is connected and is formed an information subnet by ASI bus with seven slave stations.
Adjacent six information subnet You Yi road independent DC power supply power supplies at the most form a power supply unit.
Compared with prior art, the beneficial effect of this hydraulic support electrohydraulic control system is:
(1) make key-course CAN bus node greatly reduce (by original more than 100 nodes, being reduced to more than 10 communication nodes), greatly reduced the complexity of key-course communication, better guaranteed real-time and the reliability of key-course network.
(2) greatly simplified the complexity of whole control system equipment communication line wiring.Corresponding each slave of main frame only needs two connections connect and taken into account function of supplying power, has saved a large amount of hardware spending of traditional communication modes, and key-course is because a large amount of connection wire and mounting cost have been saved in the minimizing of interstitial content in addition.
(3) minimizing due to key-course communication node makes the grouping of tens original pack support controllers be reduced to two groups even still less, Geng Jian basic unit adopts ASI communication, cable has been undertaken power supply task when transmitting data, this makes whole control system save the design of a large amount of electric power systems, makes electric power system simple and convenient.
(4) the ASI bus access mode that basic unit adopts is simple, more parameter and information under the condition that does not increase transmission cycle, have been comprised, simultaneously the time of transmission cycle can adjust that (while having 31 slave station as information subnet, the cycle is 5ms automatically, while only having 7 slave stations, the cycle is about 1ms), the mode that system adopts this advanced person has improved the flexibility of entire system greatly with respect to many host access mode and the CSMA/CD mode of token transmission, and effectively reduces the expense of slave station.
Accompanying drawing explanation
Fig. 1 is the hydraulic support electrohydraulic control system composition frame chart based on ASI mode bus;
The ASI of Tu2Wei basic unit bus message subnet structure principle chart;
Fig. 3 is hydraulic bracket control system electrohydraulic control unit structure principle chart;
Fig. 4 is ASI bus message subnet interface classification chart.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this hydraulic support electrohydraulic control system comprises ground monitoring computer, tunnel main frame, mine automated network, isolating coupler, hydraulic support electrohydraulic control unit, shearer position transducer and feed cable; In system, centered by each hydraulic bracket controller, form an information subnet, the hydraulic bracket controller between information subnet is by CAN bus communication, and information subnet forms work plane control system communication network by isolating coupler; Tunnel main frame carries out centralized Control and centralized management by network transformation device to work plane control system communication network, and work plane data are reported and submitted to ground host machine by down-hole ring exchanger;
As shown in Figure 2, the networking centered by hydraulic bracket controller of information subnet, hydraulic bracket controller is connected with ASI bus host, ASI bus host is connected in ASI bus, form ASI bus master, first ASI bus host chip is installed on a hydraulic bracket controller and is formed Yi Tai main website, then main website is arranged on one group of intermediate support by many hydraulic supports, on every hydraulic support, be distributed with slave station, the sensor on every hydraulic support and actuator all be take hydraulic support and are connected in ASI bus as unit addressing; Independent ASI interface module is arranged on every hydraulic support as slave, pressure sensor on every hydraulic support, infrared sensor, stroke sensor and electromagnetic coil drive are all connected on the slave of this support, every slave is all connected in ASI bus, forms separate type ASI bus slave station.The controller in an information subnet and sensor and actuator communicate by ASI bus, ASI bus is principal and subordinate mechanism, main frame is the center of whole information subnet, main frame uses special plug-in card to be inserted in the bus slot of bracket controller, by this way ASI bus and controller CPU is coupled together; What slave station was used is separate type, and this slave station is comprised of ASI module interface and common sensor and actuator; In ASI interface module, with ASI bus slave computer chip and corresponding peripheral circuit and memory, slave chip also has I/O interface except communication interface, and these I/O interfaces and sensor and actuator couple together, and jointly form the slave station of separate type.
Yi Ge main website is connected and is formed an information subnet by ASI bus with 32 slave stations at the most, interconnected by CAN bus in order between different information subnets, the communication network of common composition system, the supply unit on network provides working power by ASI bus to main frame and slave.
As preferred embodiment of the present utility model, Yi Ge main website is connected and is formed an information subnet by ASI bus with seven slave stations, different information subnets forms the communication network of system jointly, and main website can send request signal in turn, and receives the answer signal of each slave station.
3 kinds of logic interfacings of each ASI bus message subnet definition, 4 kinds of physical interfaces and two kinds of power interfaces, interface 1,2,3 is logic interfacing, and interface A, B, C, D are physical interface, and interface E, F are power interface; Logic interfacing 1,2,3 represents respectively the interface between site plant-ASI slave-ASI main frame-hydraulic bracket controller; In native system, as the core of system, it consists of jointly bracket controller and ASI bus host in main website; Physical interface between controller and ASI main frame is interface D, and the physical interface between main frame and ASI bus cable is interface C; The slave station of information subnet is to be connected to form by custom-designed ASI slave module and sensor and actuator, and ASI slave module is connected by physical interface B with ASI bus cable; ASI power supply is connected with ASI cable by interface E; For site plant, if external power accessory power supply is also connected by physical interface F very easily for the larger electric current and voltage of power demands.
Adjacent six information subnet You Yi road independent DC power supply power supplies at the most form a power supply unit, supply unit on communication network can provide working power to master station and follow station, between power supply unit, by isolating coupler, cut off and communicate, the sign of grouping is between group and group, all to access an isolating coupler, it has cut off, and electric between group and group connects and by photoelectric coupling transmission of data signals, this mode is the measure of taking in order to reach intrinsic safety the subject of knowledge and the object of knowledge; The introducing that isolating coupler is power supply provides passage.
The specific works principle of this hydraulic support electrohydraulic control system is:
As shown in Figure 1, hydraulic support electrohydraulic control system is mainly comprised of ground monitoring computer, tunnel main frame, mine automated network, isolating coupler, support electrohydraulic control unit, shearer position transducer and feed cable etc.In system, centered by each bracket controller, form an information subnet, the bracket controller between information subnet is by CAN bus communication, and information subnet on the same group can not communicate by isolating coupler, has formed work plane control system communication network.Tunnel main frame carries out centralized Control and centralized management by network transformation device to work plane control system communication network, and work plane data are reported and submitted to ground host machine by down-hole ring exchanger.
As shown in Figure 2, the networking centered by bracket controller of information subnet, related its ancillary equipment of bracket controller is as memory and power supply, be connected with the main frame (master) of ASI bus, wherein main frame has special extended chip to be for example inserted in, in the expansion slot of circuit board of controller (STM32/103VC), and main frame is connected in bus.The structure of slave is made an independent ASI interface module as can be seen from FIG., this module is arranged on every support, three sensors and an electromagnetic coil drive of every support are connected on this slave, every slave is all connected in bus, Yi Ge main website adds that seven slave stations are connected and are formed an information subnet by ASI bus, and different information subnets forms the communication network of system jointly.Main website can send request signal in turn, and accepts the answer signal of each slave station, and the supply unit on network can provide working power to main frame and slave.
As shown in Figure 3, the data acquisition sense channel of support electrohydraulic control unit medium-height trestle controller detects respectively column pressure, unit advance and the balance inclination angle of hydraulic support by each sensor, and detection datagram is delivered in controller, controller determines by these feedback informations of judgement the action that support is controlled, the action of hydraulic cylinder is to each electromagnetic priority valve, to send the signal of telecommunication by the Electromagnetic Drive control channel of bracket controller, controls the action of pilot valve.Electromagnetic priority valve is realized the conversion of electric liquid signal, and by main valve, controls the action of each oil cylinder, realizes the automatic control of support action.
As shown in Figure 4, each ASI bus message subnet definition 3 kinds of logic interfacings, 4 kinds of physical interfaces, and two kinds of power interfaces.Interface 1,2,3 is logic interfacing, and interface A, B, C, D are physical interface, and interface E, F are power interface.As we can see from the figure, logic interfacing 1,2,3 represents respectively the interface between site plant-ASI slave-ASI main frame-hydraulic bracket controller.In native system, as the core of system, it consists of jointly bracket controller and ASI bus host in main website.Physical interface between controller and ASI main frame is interface D, and the physical interface between main frame and ASI bus cable is interface C.The slave station of information subnet is to be connected to form by custom-designed ASI slave module and sensor and actuator, and ASI slave module is connected by physical interface B with ASI bus cable.ASI power supply is connected with ASI cable by interface E.To site plant, if external power accessory power supply is also connected by physical interface F very easily for the larger electric current and voltage of power demands.The address of slave is 5, can have 32 addresses, and ASI bus specified address " 0 " gave in " address is distributed automatically " does specific use.According to addressing from 1～31.Each slave can have at most 4 I/O mouths, therefore an information subnet can connect at most 124 sensor/actuators, the design can satisfy the demands completely.
In sum, first this hydraulic support electrohydraulic control system is installed ASI bus host chip and is formed Yi Tai main website on a hydraulic bracket controller, then main website is arranged on one group of intermediate support by seven hydraulic supports, on every hydraulic support, be distributed with slave station, on every hydraulic support (depending on the concrete form of support, this sentences two pillar shield-type hydraulic supports is example) be all provided with a column pressure sensor, an advancing jack stroke sensor, an infrared receiver, an electromagnetic coil drive (electromagnetic priority valve that connects corresponding hydraulic cylinder, the number of the electromagnetic priority valve driving depending on the concrete form of support), sensor on every hydraulic support and actuator all be take hydraulic support and are connected in ASI bus as unit addressing,
By ASI bus, realize data acquisition and the detection of hydraulic bracket controller, hydraulic bracket controller passes through pressure sensor, infrared sensor and stroke sensor detect column pressure and the unit advance of hydraulic support, and detection data are reported and submitted in hydraulic bracket controller by ASI bus, hydraulic bracket controller determines the control action of hydraulic support by these feedback data of judgement, the action of hydraulic support is sent the signal of telecommunication by the Electromagnetic Drive control channel of hydraulic bracket controller to each electromagnetic priority valve, control the action of pilot valve, electromagnetic priority valve is realized the conversion of electric liquid signal, and by main valve, control the action of each oil cylinder, realize the automatic control of hydraulic support action.
This hydraulic support electrohydraulic control system reduces key-course CAN bus node greatly, has reduced the complexity of key-course communication, has better guaranteed real-time and the reliability of key-course network; Simplified the complexity of whole control system equipment communication line wiring, corresponding each slave of main frame only needs two connections to connect and has taken into account function of supplying power, saved a large amount of hardware spending of traditional communication modes, key-course is because a large amount of connection wire and mounting cost have been saved in the minimizing of interstitial content in addition; Because the minimizing of key-course communication node makes the grouping of tens original pack support controllers be reduced to two groups even still less, Geng Jian basic unit adopts ASI communication, cable has been undertaken power supply task when transmitting data, this makes whole control system save the design of a large amount of electric power systems, makes electric power system simple and convenient; The ASI bus access mode that basic unit adopts is simple, more parameter and information under the condition that does not increase transmission cycle, have been comprised, the time of transmission cycle can be adjusted automatically simultaneously, the mode that system adopts this advanced person has improved the flexibility of entire system greatly with respect to many host access mode and the CSMA/CD mode of token transmission, and effectively reduces the expense of slave station.
Claims (3)
1. a hydraulic support electrohydraulic control system, comprises ground monitoring computer, tunnel main frame, mine automated network, isolating coupler, hydraulic support electrohydraulic control unit, shearer position transducer and feed cable;
In system, centered by each hydraulic bracket controller, form an information subnet, the hydraulic bracket controller between information subnet is by CAN bus communication, and information subnet forms work plane control system communication network by isolating coupler;
Tunnel main frame carries out centralized Control and centralized management by network transformation device to work plane control system communication network, and work plane data are reported and submitted to ground host machine by down-hole ring exchanger;
It is characterized in that, hydraulic bracket controller is connected with ASI bus host, ASI bus host is connected in ASI bus, form ASI bus master, first ASI bus host chip is installed on a hydraulic bracket controller and is formed Yi Tai main website, then main website is arranged on one group of intermediate support by many hydraulic supports, on every hydraulic support, is distributed with slave station, and the sensor on every hydraulic support and actuator all be take hydraulic support and be connected in ASI bus as unit addressing;
Independent ASI interface module is arranged on every hydraulic support as slave, pressure sensor on every hydraulic support, infrared sensor, stroke sensor and electromagnetic coil drive are all connected on the slave of this support, every slave is all connected in ASI bus, forms separate type ASI bus slave station;
Yi Ge main website is connected and is formed an information subnet by ASI bus with 32 slave stations at the most, and the supply unit on network provides working power by ASI bus to main frame and slave.
2. a kind of hydraulic support electrohydraulic control system according to claim 1, is characterized in that ，Yi Ge main website is connected and is formed an information subnet by ASI bus with seven slave stations.
3. a kind of hydraulic support electrohydraulic control system according to claim 1 and 2, is characterized in that, adjacent six information subnet You Yi road independent DC power supply power supplies at the most form a power supply unit.
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| CN201320539748.XU CN203476374U (en) | 2013-08-30 | 2013-08-30 | Hydraulic support electrohydraulic control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573281A (en) * | 2013-08-30 | 2014-02-12 | 中国矿业大学 | Hydraulic support electrohydraulic control system |
| CN104481567A (en) * | 2014-12-26 | 2015-04-01 | 中国矿业大学 | Senseless hydraulic support electric-hydraulic control system and senseless hydraulic support electric-hydraulic control method |
| CN105464691A (en) * | 2014-09-09 | 2016-04-06 | 天津华宁电子有限公司 | Electrohydraulic control system of hydraulic support and program and parameter updating and backup method of electrohydraulic control system |
| CN113790074A (en) * | 2021-07-28 | 2021-12-14 | 中国矿业大学 | Long-distance liquid supply system state monitoring system and monitoring method |
-
2013
- 2013-08-30 CN CN201320539748.XU patent/CN203476374U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573281A (en) * | 2013-08-30 | 2014-02-12 | 中国矿业大学 | Hydraulic support electrohydraulic control system |
| CN103573281B (en) * | 2013-08-30 | 2016-06-08 | 中国矿业大学 | A kind of hydraulic support electrohydraulic control system |
| CN105464691A (en) * | 2014-09-09 | 2016-04-06 | 天津华宁电子有限公司 | Electrohydraulic control system of hydraulic support and program and parameter updating and backup method of electrohydraulic control system |
| CN105464691B (en) * | 2014-09-09 | 2017-11-07 | 天津华宁电子有限公司 | Hydraulic support electrohydraulic control system and its program and parameter update backup method |
| CN104481567A (en) * | 2014-12-26 | 2015-04-01 | 中国矿业大学 | Senseless hydraulic support electric-hydraulic control system and senseless hydraulic support electric-hydraulic control method |
| CN104481567B (en) * | 2014-12-26 | 2017-02-22 | 中国矿业大学 | Senseless hydraulic support electric-hydraulic control system and senseless hydraulic support electric-hydraulic control method |
| CN113790074A (en) * | 2021-07-28 | 2021-12-14 | 中国矿业大学 | Long-distance liquid supply system state monitoring system and monitoring method |
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