GB2169729A - Control systems for mineral mining installations - Google Patents
Control systems for mineral mining installations Download PDFInfo
- Publication number
- GB2169729A GB2169729A GB08600019A GB8600019A GB2169729A GB 2169729 A GB2169729 A GB 2169729A GB 08600019 A GB08600019 A GB 08600019A GB 8600019 A GB8600019 A GB 8600019A GB 2169729 A GB2169729 A GB 2169729A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control
- control unit
- control system
- unit
- master
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005065 mining Methods 0.000 title claims description 10
- 238000009434 installation Methods 0.000 title claims description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 4
- 239000011707 mineral Substances 0.000 title claims description 4
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000011553 magnetic fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- 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
- G05B19/10—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches
- G05B19/102—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for input of programme steps, i.e. setting up sequence
-
- 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
- G05B2219/23—Pc programming
- G05B2219/23051—Remote control, enter program remote, detachable programmer
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Selective Calling Equipment (AREA)
- Mechanical Control Devices (AREA)
- Operation Control Of Excavators (AREA)
Abstract
An (electro-hydraulic) control system for use in an underground mine working employs a number of control boxes (10) fitted to roof supports, for example. These boxes (10) contain electro-magnetic fluid control valves which are actuated with an in-built controller such as a microprocessor. Each control box can only be operated when a portable master control unit (11) is fitted to its exterior, for example, with latches or magnets (36). A keyboard on the master control unit (11) sets up some desired sequence of operations and the master unit (11) then transmits command signals to the slave unit (10). <IMAGE>
Description
SPECIFICATION
Improvements in electro hydraulic control systems for mineral mining installations
The present invention relates, in general, to control systems for use in mineral mining installations.
In a known electro-hydraulic control system for a mining installation, each roof support along a mine working is provided with a control unit having a microprocessor and electromagnetic control valves which are operated under the supervision of the microprocessor to cause pressure fluid to flow to appliances of the roof support. The control unit also has an accessible operating zone with a keyboard and an operator actuates the keyboard to set up the various control functions-see Bergbau 1984 pages 220-222 and Gluckauf 1984 pages 135-140. A typical mine installation employs a large number of roof supports and the inclusion of a control unit and the keyboard for each support is very expensive. A further drawback of the known system is that any of the control units can be operated by unauthorised persons.
A general object of the invention is to provide an improved form of control system whereby the cost is reduced and operation by unauthorised personnel is prevented.
In accordance with the invention, a control system employs a number of control units distributed over a mine working, as is known, but a portable master control unit is attachable or locatable to each of the control units in turn in order to cause the control unit to operate. A control system in accordance with the invention can comprise individual control units disposed along a working, each unit including electronic control means which serves to control a sequence of operations pertaining to the mining installation and a portable master control unit which can be temporarily located locally relative to each of the control units in order to cause the control means to operate.
Only the portable master control unit need employ keys or the like which can be operated by authorised persons to operate or program the control unit in question. The master control unit can be small and easily transported from unit to unit in turn. All the individual control units can thus be operated by means of the single portable master control unit and this reduces the cost. Moreover, since only authorised mining personnel would have such a master control unit the risk of inadvertent operation of the mining equipment by unauthorised personnel is eliminated.
Each slave control unit may employ electromagnetic control valves actuated by an in-built controller such as a microprocessor. The controller is then enabled by command signals transmitted by the master control unit in response to manual operation of keys on a control panel easily accessible from the exterior.
In order to locate the master unit in a correct position for interaction with the normally fixed slave control units, there is preferably provided some form of rapid releasable connecting device. Preferably the command signals pass between the master unit and the slave control unit by a non-contacting coupling. The master unit is best designed so that it has to be connected up correctly to the control unit before the latter can be operated in this manner. There is then no possibility of remote control of other units, usually some distance away and this precludes the danger of inadvertently operating adjacent control units. The means for effecting location and connection of the master unit to the individual control units normally fixed in position can take the form of a magnetic connection but plugs and sockets, catches, detents, latches or slide bolts can also be employed.
The non-contacting coupling between the units is preferably inductive, capacitive or optical. The master unit preferably contains a transmitter driven by a battery and coupled to a receiver in the fixed control unit via the noncontacting coupling. In another arrangement the master control unit and each individual control unit employs a transmitting and receiver device which serves to pass signals between the master control unit and an associated control unit via a non-contacting coupling when these units are locally located relative to one another.
The invention may be understood more readily, and various other features of the invention may become apparent from consideration of the following description.
An embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawing, wherein:
Figure 1 is a schematic representation of a control system constructed in accordance with the invention; and
Figure 2 depicts a portable master control unit of the control system.
As shown in Figure 1, a control system for mining equipment employs a compact fixed unit 10 which can be installed on or near a roof support or on a scraper-chain conveyor for example. A number of these units 10 would normally be used and distributed along the mine working at appropriate locations.
Each unit 10 is provided with an electronic controller. such as a micro-processor, which in turn inter-acts with electro-magnetic hydraulic control valves which are caused to operate in a pre-determined sequence to effect some operation. The construction of the unit 10 itself is known per se.
In accordance with the invention the control ler of the unit 10 is enabled with a single portable master control unit 11. The unit 11 can be used to operate all the slave units 10 in turn by moving the unit 11 from one location to another. The unit 11, depicted separately in Figure 2, is provided with a front panel 12 with manuallyoperable function keys 13-18, 19-25 and 26-29. Visual displays 30-35 depict the functions set by the keys 13-18 and 26-29. Where the unit 10 is associated with a roof support, then the functions can be the known operations of shifting the support and retracting and setting the props, for example.
At the rear of the unit 11 there are several permanent magnets 36 which enable the unit 11 to be quickly fitted up temporarily to a mating wall 37 of each unit 10 in turn. Instead of magnets, mechanical devices such as plugs and sockets, detents or latches can be used. The unit 11 contains one or more transmitting devices 39 energised by means of a battery 38. Each transmitting device 39 has an induction coil 40 and the unit 10 is equipped with corresponding receivers 41 each equipped with a receiving coil 42. When the unit 11 has been connected up in the correct location vis a vis the unit 10 electrical control signals set up by means of the keys on the panel 12 are transmitted via the transmitter and receiving devices 39, 41 and the internal control means of the unit 11 then operates to effect some control function. The various signals set up by the keys and transmitted are preferably analog modulated signals and for each operation or function there is a corresponding modulated signal.
Preferably the devices 39, 41 are dual purpose receiving and transmitting devices, so that when the keys of the unit 11 are operated the unit 10 can transmit return signals signifying their directed function has been correctly initiated. Although the system employs inductive coupling between coils 40, 42 capacitive or optical coupling could be used instead.
Claims (11)
1. A control system for use in mineral mining installations; said system employing individual control units disposed along a working, each unit including electronic control means which serves to control a sequence of operations pertaining to the mining installation and a portable master control unit which can be temporarily located locally relative to each of the control units in order to cause the control means to operate.
2. A control system according to claim 1 wherein the master control unit has manuallyoperable keys which are used to command the control means of each of the control units.
3. A control system according to claim 1, wherein the master control unit employs manually-operable keys for setting up various functions and display means for displaying these functions.
4. A control system according to any one of claims 1 to 3 and further comprising means for releasably fixing the master unit to each of the control units.
5. A control system according to claim 4, wherein the releasable fixing means are magnets.
6. A control system according to claim 4, wherein the releasable fixing means are mechanical devices.
7. A control system according to any one of claims 1 to 6, wherein the master control unit is provided with at least one transmitting device which transmits signals to the control means of the associated control unit via a noncontacting coupling when the respective control units are locally located relative to one another.
8. A control system according to any one of claims 1 to 6, wherein the master control unit and each individual control unit employs a transmitting and receiver device which serves to pass signals between the master control unit and an associated control unit via a noncontacting coupling when these units are locally located relative to one another.
9. A control system according to claim 7 or 8, which the non-contacting coupling is an inductive coupling.
10. A control system according to claim 7 or 8, wherein the non-contacting coupling is an optical or capacative coupling.
11. A control system substantially as described with reference to, and as illustrated in, the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853500816 DE3500816A1 (en) | 1985-01-11 | 1985-01-11 | REMOVAL CONTROL UNIT FOR ELECTROHYDRAULIC REMOVAL CONTROLS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8600019D0 GB8600019D0 (en) | 1986-02-12 |
| GB2169729A true GB2169729A (en) | 1986-07-16 |
| GB2169729B GB2169729B (en) | 1988-06-15 |
Family
ID=6259665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08600019A Expired GB2169729B (en) | 1985-01-11 | 1986-01-02 | Improvements in control systems for mineral mining installations |
Country Status (6)
| Country | Link |
|---|---|
| AU (1) | AU584376B2 (en) |
| BE (1) | BE904018A (en) |
| DE (1) | DE3500816A1 (en) |
| ES (1) | ES8703573A1 (en) |
| FR (1) | FR2582050B1 (en) |
| GB (1) | GB2169729B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2197075A (en) * | 1986-11-06 | 1988-05-11 | Eaton Corp | Explosion proof housing with magnetically actuated input device |
| EP0369430A2 (en) * | 1988-11-15 | 1990-05-23 | Sony Corporation | Control data input aparatus |
| WO2004070903A1 (en) * | 2003-02-05 | 2004-08-19 | Jose Luis Canturiense Bernal | Safety device for electrical installations |
| CN101493680B (en) * | 2009-03-09 | 2011-09-07 | 株洲广义自动化技术有限公司 | Gangue stock digitalization safety monitoring system, method and device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3801617C2 (en) * | 1988-01-21 | 1996-04-18 | Westfalia Becorit Ind Tech | Emergency control device for electro-hydraulic expansion controls |
| EP0361585B1 (en) * | 1988-09-27 | 1995-01-18 | Matsushita Electric Works, Ltd. | Data setting system for terminal units in remote supervisory and controlling system employing multiplex data transmission |
| DE3935246C2 (en) * | 1988-11-04 | 1997-08-21 | Siemens Ag | Steering expansion control |
| DE102009033786B4 (en) * | 2009-07-17 | 2011-05-12 | Ident Technology Ag | Device and method for capacitive data transmission |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066532A1 (en) * | 1981-05-29 | 1982-12-08 | Siemens Aktiengesellschaft | Electronic control apparatus |
| EP0079087A1 (en) * | 1981-11-09 | 1983-05-18 | Famurano Anstalt | Programming device for room heating |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU496287B2 (en) * | 1974-05-09 | 1976-11-11 | Euclase Pty. Ltd. | Device for automatic raising of fish traps, crayfish pots, nets and the like |
| CA1203018A (en) * | 1982-02-12 | 1986-04-08 | Daisuke Kozakai | Remote control system |
| US4758836A (en) * | 1983-06-20 | 1988-07-19 | Rockwell International Corporation | Inductive coupling system for the bi-directional transmission of digital data |
| DE3443954A1 (en) * | 1984-12-01 | 1986-06-12 | Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | ARRANGEMENT FOR CONTROLLING A PROGRESSIVE EXTENSION USED IN UNDERGROUND MINING |
-
1985
- 1985-01-11 DE DE19853500816 patent/DE3500816A1/en not_active Withdrawn
- 1985-10-17 ES ES547984A patent/ES8703573A1/en not_active Expired
- 1985-12-23 AU AU51576/85A patent/AU584376B2/en not_active Expired - Fee Related
-
1986
- 1986-01-02 GB GB08600019A patent/GB2169729B/en not_active Expired
- 1986-01-10 FR FR8600278A patent/FR2582050B1/en not_active Expired
- 1986-01-10 BE BE0/216119A patent/BE904018A/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0066532A1 (en) * | 1981-05-29 | 1982-12-08 | Siemens Aktiengesellschaft | Electronic control apparatus |
| EP0079087A1 (en) * | 1981-11-09 | 1983-05-18 | Famurano Anstalt | Programming device for room heating |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2197075A (en) * | 1986-11-06 | 1988-05-11 | Eaton Corp | Explosion proof housing with magnetically actuated input device |
| EP0369430A2 (en) * | 1988-11-15 | 1990-05-23 | Sony Corporation | Control data input aparatus |
| EP0369430A3 (en) * | 1988-11-15 | 1992-09-16 | Sony Corporation | Control data input aparatus |
| WO2004070903A1 (en) * | 2003-02-05 | 2004-08-19 | Jose Luis Canturiense Bernal | Safety device for electrical installations |
| CN101493680B (en) * | 2009-03-09 | 2011-09-07 | 株洲广义自动化技术有限公司 | Gangue stock digitalization safety monitoring system, method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3500816A1 (en) | 1986-07-17 |
| AU584376B2 (en) | 1989-05-25 |
| AU5157685A (en) | 1986-07-17 |
| FR2582050A1 (en) | 1986-11-21 |
| BE904018A (en) | 1986-05-02 |
| FR2582050B1 (en) | 1988-10-28 |
| GB8600019D0 (en) | 1986-02-12 |
| ES547984A0 (en) | 1987-02-16 |
| ES8703573A1 (en) | 1987-02-16 |
| GB2169729B (en) | 1988-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |