Method and apparatus for determining position of mining machine.
17 claims: 9 independent, 8 dependent
- 1Patentkrav 1. Förfarande för att bestämma en gruvmaskins position, när åtminstone ett av maskinens hjul slirar med avseende på underlaget, varvid förfarandet omfattar bestämmande av gruvmaskinens position under dess normala 5 rörelse genom mätning av den sträcka som maskinen har rört sig i proportion till hjulens rotation och den riktning som maskinen rör sig i, vidare bestämmande av maskinens position med lämpliga intervall över den rutt längs vilken maskinen rör sig genom definiering av profiler för väggytor som omger maskinen och genom jämförelse av de erhållna väggytsprofilerna med väggprofiler för 10 motsvarande ställen, som är lagrade i ett minne hos gruvmaskinens styrutrustning, och korrigering vid behov av positionsdata som erhållits från hjulens rotationsrörelse samt av maskinens färdriktningar genom användning av positionsdata som erhållits från definieringen av väggprofilerna, kännetecknat av att när gruvmaskinen rör sig, detekteras slirning hos åtminstone ett av 15 maskinens hjul med avseende på underlaget med åtminstone en detektor, såsom en givare, som detekterar funktionen hos gruvmaskinens kraftöverföring, bestämmandet av maskinens position med hjälp av hjulens rotation och maskinens färdriktning avbryts från och med den stund då slirningen detekteras under slirningens hela längd, och maskinens position bestäms enbart genom 20 att man definierar profilen för åtminstone en väggyta som omger maskinen och jämför den erhållna väggytsprofilen med de lagrade profilerna för de kända väggytorna som omger maskinen.
- 2Förfarande enligt patentkrav 1, kännetecknat av att nämnda väggytas profil mäts, innan nämnda åtminstone ena hjuls slirning med av25 seende på underlaget detekteras.
- 3Förfarande enligt patentkrav 1 eller 2, k ä η n e t e c k n a t av att mätningen av gruvmaskinens position med hjälp av hjulens rotationsrörelse och färdriktningen avbryts väsentligen omedelbart efter att nämnda väggytas profil har mätts och maskinens position har bestämts på basis av den uppmät30 ta profilen.
- 4Förfarande enligt något av de föregående patentkraven, kännetecknat av att gruvmaskinen är en lastningsmaskin och nämnda väggytsprofil definieras efter att maskinen har anlänt till lastningsplatsen och växelsystemet i maskinens kraftöverföringsutrustning har kopplats till en på förhand 35 bestämd växel, medan lastningsmaskinen rör sig rakt framåt. ROZ ο/ή J i. “ϊ 0 7 1
- 5Förfarande enligt något av de föregående patentkraven, kännetecknat av att efter att gruvmaskinens position har ändrats med avseende på nämnda väggprofil på ett på förhand bestämt sätt, definieras nämnda väggprofil med avseende på gruvmaskinen på nytt på detta ställe, och den så5 lunda definierade väggprofilen blir den nya referensprofilen som används för att bestämma positionen.
- 6Förfarande enligt patentkrav 5, kännetecknat av att den nya väggytsprofilen används som referensprofil efter att gruvmaskinen har rört sig en på förhand bestämd sträcka i färdriktningen. 10
- 7Förfarande enligt patentkrav 5 eller 6, kännetecknat av att den nya väggytsprofilen definieras efter att gruvmaskinen har svängt i en på förhand bestämd vinkel från den ursprungliga väggprofilens mätriktning.
- 8Förfarande enligt patentkrav 7, k ä η n e t e c k n a t av att gruvmaskinens svängningsvinkel mäts med ett gyroskop som är anordnat i maski15 nen.
- 9Förfarande enligt något av de föregående patentkraven, kännetecknat av att gruvmaskinens position mäts med hjälp av hjulens rotationsrörelse öch färdriktningen så snart som maskinen börjar röra sig i returriktningen. 20
- 10Förfarande enligt något av de föregående patentkraven, kännetecknat av att nämnda väggytsprofiler definieras med en laserskanner.
- 11Förfarande enligt något av de föregående patentkraven, kännetecknat av att av nämnda väggytsprofiler mäts med en videokamera och en därtill kopplad dator. 25
- 12Förfarande enligt något av de föregående patentkraven, kännetecknat av att positionen bestäms för en gruvmaskin, som är anordnad att röra sig automatiskt längs en på förhand bestämd rutt.
- 13Förfarande enligt något av de föregående patentkraven, kännetecknat av att profilerna för väggytorna som omger gruvmaskinens rutt 30 lagras genom att maskinen körs manuellt längs nämnda rutt, väggytornas profiler som definierats under körningen lagras i ett minne och genom att de sålunda lagrade väggytsprofilerna används som referensytor, när man bestämmer gruvmaskinens position.
- 14Anordning för att förverkliga förfarandet enligt patentkrav 1, var35 vid anordningen omfattar styrdon för styrning av en gruvmaskin, varvid styrdonen inkluderar don för att bestämma gruvmaskinens position genom att mäta hjulens rotationsrörelse och maskinens färdriktning, samt mätdon för att definiera profiler för väggytor som omger maskinens rutt åtminstone med på förhand bestämda intervall och för att lagra profilerna i ett minne, samt don för att jämföra väggytsprofilerna som uppmätts under maskinens rörelse med de i 5 minnet lagrade väggytsprofilerna samt för att korrigera data om gruvmaskinens position på basis av positionsdata som erhållits från jämförelsen av väggytornas profiler, kännetecknad av att anordningen omfattar åtminstone en detektor, såsom en givare, som detekterar funktionen hos kraftöverföringen, varvid detektorn detekterar åtminstone ett hjuls slirning med avseende på un10 derlaget, och att styrdonen är anordnade att avbryta bestämmandet av maskinens position med hjälp av hjulens rotationsrörelse och gruvmaskinens rörelseriktning så snart som detektorn detekterar slirningen, och på motsvarande sätt att bestämma maskinens position enbart genom att jämföra väggytsprofilerna som erhållits från mätdonen med de i minnet lagrade väggytsprofilerna.
- 1515 15. Anordning enligt patentkrav 14, kännetecknad av att den omfattar ett gyroskop som är anordnat i gruvmaskinen för att mäta den riktning i vilken maskinen svänger och för att beakta den uppmätta riktningen, när gruvmaskinens position bestäms.
- 16Anordning enligt patentkrav 14 eller 15, kännetecknad av
- 1720 att styrdonen är anordnade att med hjälp av mätdonet definiera nämnda väggytas profil med avseende på gruvmaskinens position efter att maskinen har förflyttat sig framåt en på förhand bestämd sträcka med avseende på nämnda väggyta och/eller har svängt i en vinkel som är lika med en på förhand bestämd vinkel från sin ursprungliga färdriktning, och lagra den erhållna väggyts25 profilen som den nya referensprofilen i styrdonens minne. 2 5
Independent claims17
59 paragraphs in 4 sections, as filed
SWEDEN (12) PATENT (13) C2 di) 524 841
<img file="SE524841C2_D0001.tif" />
(19) SE (51)
International class <sup>7</sup>
G05D 1/02, G01C 21/12
PATENT AND REGISTRATION (45) (41) (22) (24) (62) (86) (86) (83)
Patent issued 2004-10-12
Application generally available 2004-01-14 The patent application was filed on 11 November 2003
Running day 2002-05-13
Tribal application number
International filing date 2002-05-13 Filing date for European patent application Deposit of microorganism (21) Patent application number 0302984 0
Application received as:
Swedish patent application completed international patent application with number PCT / FI02 / 40600 converted European patent application with number (30)
2001-05-14 Fl 011006 (73) (72) (74) (54) (56) (57)
PATENT HOLDER Sandvik Tamrock OY, Pihtisulunkatu 9 33330 Tampere El Inventor Hannu Mäkelä, Helsinki Fl Thomas von Numers, Grankulla
Fl
OMBUD AWAPATENT AB
NAME Method and apparatus for determining the position of a mining machine
CALLED PUBLICATIONS: - - SUMMARY:,. <sub>c</sub> ,. ,. . The invention relates to a method and apparatus for determining the position of a mining machine when its wheels slip with respect to the ground. In the method, at least one detector detecting the operation of the power transmission detects slimming of at least one wheel (2c) with respect to the ground, whereupon determination of the position by the rotation of the wheels (2c) and the direction of travel is interrupted. The device comprises at least one detector for detecting the operation of the power transmission, the detector detecting the slime of at least one wheel (2c) with respect to the support.
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The numbers in brackets indicate international identification code, INID code. Letters in clamps indicate international document code.
524 841
Summary
The invention relates to a method and apparatus for determining the position of a mining machine when its wheels slip with respect to the ground. In the method, at least one detector which detects the operation of the power transmission detects slimming of at least one wheel (2c) with respect to the ground, whereupon determination of the position by the rotation of the wheels (2c) and the direction of travel is interrupted. The device comprises at least one detector for detecting the operation of the power transmission, the detector detecting the slip of at least one wheel (2c) with respect to the support.
»I
524 841
The invention relates to a method for determining the position of a mining machine when at least one of the wheels of the machine slides with respect to the support, the method comprising determining the position of the mining machine during its normal movement by measuring the distance the machine has moved in proportion to the rotation of the wheels. and the direction in which the machine is moving, further determining the position of the machine at suitable intervals over the route along which the machine moves by defining profiles for wall surfaces 10 surrounding the machine and by comparing the obtained wall surface profiles with wall profiles for corresponding places stored in a memory of the mining machine's control equipment; and correction, if necessary, of position data obtained from the rotational motion of the wheels and of the machine's travel directions using position data obtained from the definition of the wall profiles.
The invention further relates to a device for realizing the method according to claim 1, wherein the device comprises control means for controlling a mining machine, the control means including means for determining the position of the mining machine by measuring the rotational movement of the wheels and the direction of travel of the machine, and measuring means for defining profiles for wall surfaces. at least at predetermined intervals, surround the machine's route and store the profiles in a memory; and means for comparing the wall surface profiles measured during machine movement with the wall surface profiles stored in the memory and for correcting data on the position of the mining machine on the basis of position data obtained from the comparison of the wall surface profiles.
Processing of materials and other mechanical operations in connection with mining is automated to an increasing extent to minimize costs. As a result, it has been developed e.g. loading machines, which follow automatically given commands and travel along a specific route to retrieve explosives from one place and empty the stone from the bucket at another place. In the prior art arrangement, the loading machine automatically moves between the places and also empties the load from the bucket automatically, but during loading, a remote operator controls via a telecommunications network the filling of the bucket, since fully automatic loading of the bucket with the known methods is not as efficient as manually controlled loading. .
As the loading machine moves, it should follow the predetermined route fairly accurately to be kept within the permitted driving range and to kunfozi pz 1
X? z_ TU Ύ I na perform the required actions correctly. From the prior art, arrangements are known, which are based on cutlery and model design and observation of the surroundings, for controlling the movement of the machine and for determining the position of the machine.
The cutlery method utilizes the rotational motion of a component of the power transmission equipment, usually the wheels, by measuring the distance traveled by the device in proportion to the rotation of the wheels. The cutlery procedure also takes into account control angles, ie. either the turning angles of the swinging wheels or the steering angle of the frame, so that the travel distance and direction of the device can also be calculated while the device swings. Although the data obtained are quite useful, they contain some errors, so the position of the device must be checked in some other way at appropriate intervals. For this purpose, according to the prior art, an arrangement is known in which the surfaces surrounding the route along which the device moves, ie. the shapes of the surfaces and their distances from the intended route are defined and stored in a memory by manually controlling the device along a new route which will later be run automatically and by defining the surfaces simultaneously. The surface profile thus defined can be used in determining the exact position of the device as it moves automatically along the route. In this situation, the actual calculation of the motion is based on the cutlery method in the manner described above, which also includes observation of the surfaces surrounding the device. Profile data from the definition of the surfaces is compared with profile data stored in the memory, whereupon the longitudinal and transverse position of the device with respect to the desired route can be precisely determined. Accordingly, the correction movements required to control the device 25 back to the desired route can be performed automatically and deviating position data obtained with the cutlery method can be corrected. By repeating the above-mentioned measures with appropriate, e.g. At predetermined intervals, the loading machine is caused to move fairly precisely along a desired route. In addition to loading machines, such an arrangement for guiding a machine along a specific route and for determining the position of the machine by means of the cutlery method and determining the profiles of the surrounding wall surfaces can be used in conjunction with other mining machines, such as conveyors, drilling devices, etc. For example. In the present application and claims, a mining machine refers to all possible machines and vehicles moving in a mining machine.
However, the above-mentioned measurement method is not sufficiently accurate for
Γ G '1 Ο Ζ ή j ζ. 4 υ S · In loading machines during loading, when the bucket is filled with explosives. In order to achieve maximum load of the bucket, or maximum transport capacity, it is not enough to drive the bucket into the pile alone with explosives, but the bucket must be controlled and swiveled in different ways. Since the bucket must also be disappointed in the pile with high-speed explosives, the wheel of the loading machine tends to slip and the loading machine may also deviate from the normal direction of travel during filling of the bucket. In such a situation, the cutlery process is subject to failure, which causes problems in the automatic control of the device. Furthermore, at the feeding stage, the environment of the loading site, and in particular the direction of the material to be loaded, may not have been observed and stored fully in memory, since these are usually changed as loading progresses. Similarly, problems arise in determining the position of other mining machines with the cutlery procedure when one or more wheels of the vehicle slip with respect to the ground, thereby causing errors in the determination.
It is an object of the present invention to provide a method and apparatus which allows more precise determination of the position of a mining machine as its wheels slip with respect to the ground.
The method according to the invention is characterized in that as the mining machine moves, slipping of at least one of the wheels of the machine with respect to the substrate is detected with at least one detector, such as a sensor detecting the function of the power transmission of the mining machine, determining the position of the machine by means of the rotation of the wheels. and the direction of travel of the machine is interrupted from the moment the slip is detected for the entire length of the slip, and the position of the machine is determined only by defining the profile of at least one wall surface surrounding the machine and comparing the obtained wall surface profile with the stored profiles of the known wall surfaces surrounding the machine.
The device according to the invention is characterized in that the device comprises at least one detector, such as a sensor, which detects the function of the power transmission, the detector detecting at least one wheel slip with respect to the ground, and that the controls are arranged to interrupt the determination of the position of the machine by means of the rotation of the wheels and the direction of movement of the mining machine as soon as the detector detects slippage35; and correspondingly, to determine the position of the machine only by comparing the wall surface profiles obtained from the measuring devices with the wall surface profiles memorized in memory.
An essential idea of the invention is that predefined parameters are used to detect a condition in which at least one of the mining machine's wheels begins to slip, whereupon the cutlery system based on the rotational movement of the transmission equipment is switched off. The parameters include e.g. the speed of rotation of the engine, the data on the selected gear of the gear system, and the distance traveled by the machine, as determined from the transmission of power on the basis of the rotation of the wheels. For example, when the lowest or second lowest gear is used and a torque converter in the power transmission system can slip to a sufficient extent, measurement of the distance by means of the power transfer sensor can be completed and another measurement method according to the invention can be introduced. According to another essential invention, determining the position of the mining machine requires that the shape, distance and direction of at least one wall surface surrounding the mining machine be determined and compared with the known wall profiles stored in memory, so that when the wheels stop slipping, the position of the mining machine with respect to it defined environment to be exactly known. According to a preferred embodiment, the shape of the wall profile used in determining the position of the mining machine and the position of the wall profile with respect to the known position of the mining machine is determined and stored in the memory after the machine has moved a predetermined distance forward or its angle of rotation has been changed to an extent. is equal to at least one predetermined angle. As a result, the wall profile thus stored becomes the new reference profile, so the determination of the position carried out by means of the comparison based on a correlation principle will continuously produce as accurate results as possible.
The advantage of the invention is that as the wheels of the mining machine begin to slip, the distance traveled by the machine and its direction and position can be determined quite precisely to provide reliable automatic control of the machine during its return movement and a subsequent movement in the same direction. Another advantage which is evident in particular with loading machines is that, although transport and emptying takes place automatically, the filling of the bucket is still remotely controlled manually, and the remote operator who controls the filling can thus concentrate solely on the filling. Furthermore, as soon as the loading of the bucket can be automated, the system will be ready for use and be able to control a loading machine's entire automatic work cycle.
The invention will be described below in more detail in the same Q Ζι Q Λ 1 µR f
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belts with preferred embodiments and with reference to the accompanying drawings, in which Figure 1 shows a typical mining machine, in this case a loading machine, in normal driving as it approaches a loading location, Figure 2 shows the loading machine during loading, and Figure 3 shows wall profiles which has been measured in a real measurement situation with respect to the position of the loading machine.
Figure 1 shows a situation where a mining machine, in this case a loading machine 2, which moves in a tunnel 1 approaches a loading site containing explosives. The tunnel 1 is provided with side wall surfaces 1a and 1b. The loading machine 2 is normally of the frame controlled type and comprises a front frame 2a and a rear frame 2b, a pivot between the frames and wheels 2c attached to each frame in a non-pivoting manner. The loading machine is controlled by pivoting of the front and rear frames 2a, 2b with respect to each other.
The front frame 2a is provided with a bucket 2d, in which explosives are loaded for transport.
The upper part of the loading machine 2 is provided with measuring means 3, 4 arranged suitably for inspecting the surfaces surrounding the route along which the loading machine 2 moves, e.g. In a tunnel, such surfaces are usually the wall surfaces
1a, 1b. The shape or profile of the surfaces and the distance from the loading machine 2 are defined as the loading machine moves along the route. The measuring means 3, 4 may be any devices that transmit and receive radiation, such as laser scanners or the like, or video cameras. Data obtained with the measuring devices is processed by suitable programs to form information on the wall surface. The figure further shows a loading location indicated by reference numeral 5 and containing explosives 6 at the end thereof.
Measuring means 3 located on the front frame 2a of the loading machine are used e.g. for defining the wall surfaces 1a, 1b in front of the loading machine, i.e. they scan the walls in front of them at an angle of about 180 °, preferably slightly more than 180 °, on both sides of the loading machine's travel route. When the profile data scanned during the loading machine's movement is compared to the profile data stored in the memory, it is easy to calculate the exact position of the loading machine and to determine the corrective measures that may be required to guide the loading machine to the desired route, if it has deviated from it.
Measuring means 4 are in turn located on the rear frame 2b of the loading machine. They are used to define the wall surfaces located behind the loading machine
RO / 'Ρ / 1 1 wk “TU * -, · I and they are also needed during a loading situation, which will be described below, where the cutlery method based on the rotational movement of the power transmission equipment, such as the wheels, cannot be used because one or more wheels slip with respect to the ground. Measuring means 4 scans the wall surfaces at an angle of about 180 ° on both sides of the loading machine, thereby providing an image of the wall surfaces behind the loading machine. In practice, the measuring means 3, 4 preferably measure the wall profile at an angle of more than 180 °, so that the measuring areas partially overlap on each side and thus can be integrated in a more reliable way.
Measurement of the loading machine's movement and position during normal driving is performed using data obtained from rotational motion proportional to the rotation of the wheels, the data indicating the average distance the loading machine has moved. Thus, sensors are used to measure e.g. the rotation movement of the wheels or the transmission shaft, which is directly proportional to the distance the loading machine has moved during the rotation of the wheels. The steering angle between the front and rear frame of the loading machine is also measured to calculate the distance traveled by the loading machine and its position in crooked movements. Further, in addition to or in place of the steering angle, a gyroscope which is known per se in such a case can be used in determining the direction. The gyroscope provides the direction of the loading machine in proportion to a direction which is fixed with respect to the ground, and therefore the steering angle between the frames is not needed to detect the deviation angle or the direction of travel. These values can be used to fairly accurately determine the position of the loading machine along a predetermined route which has been programmed into the memory of the loading machine's control system. However, since this method is subject to failure for various reasons, the loading machine's control system is trained to recognize the route by first running the loading machine along the upcoming route under manual control. At the same time, the profiles of the wall surfaces 1a, 1b along the route are preferably defined at suitable intervals or, if necessary, over the entire route, and they are stored in memory as reference values for automatic movement. As the loading machine 2 moves under the automatic control of the steering system, the distance it has traveled and its position with the aforementioned cutlery method is determined by using the rotational movement of the wheels and the direction of travel and / or the steering angles. At the same time, measuring device 3 defines the profile of the wall surface on both sides of the loading machine in front of it. Measuring means 4 similarly measures the profile of the wall surface on both sides of the loading machine behind it. The control system
524 841 compares the measured wall surface profiles with the profiles stored in memory and, if necessary, corrects the loading machine's position based on the cutlery procedure and directs the loading machine to the desired route to correct deviations from the position detected on the basis of the comparison.
Figure 2 shows a situation where the loading machine 2 has arrived at the loading site 5. In this situation, the loading machine's bucket 2d is lowered for loading. This is now done manually by remote control, so that when the loading machine approaches the loading site 5, it is transmitted under the control of a remote operator via a telecommunication connection. In principle, loading could also be performed completely automatically, but for the time being, manual loading of the bucket is still more efficient than the various automatic filling arrangements with which you have experimented. When the filling is started, the loading machine draws the bucket 2d into the burst 6, whereby at least one of the wheels 2c can slip at some stage with respect to the substrate. When the sensors of the control equipment detect the slip, the cutlery procedure based on the rotation of the wheels is switched off and measuring means 4 define the wall surfaces, ie. the shape and distance of the walls visible at an angle of slightly more than 180 ° behind the loading machine 2, after which these variables are stored in memory. In practice, the measuring means 4 at the rear end of the loading machine begin to define the wall surfaces even before the slipping of the wheels is detected, so that reliable detection of the position is available, and after the slipping has begun, the position of the loading machine can be checked according to the above measured profile. While the bucket is being filled, the deflection angle of the loading machine can be detected e.g. using a separate gyroscope located in the loading machine. The method further takes into account the steering angle, ie. the steering angle of the loading machine intermediate link, which is used to determine the position of the front and rear parts of the loading machine. The deviation angle can also be calculated by taking into account the wall surfaces defined by the measuring means 4, since a change in successively measured wall surfaces also indicates possible swinging of the rear part 2b of the loading machine. In this way, the position of the loading machine during loading can be determined quite accurately. Measuring devices 3 located in the front part of the loading machine can simultaneously be used to measure the profiles of the wall surfaces in front of the loading machine, the profiles also being stored in memory. When the loading machine's geometry and position are known as well as the steering angle between the front and rear frames, the surface characteristics of an unidentified area may possibly form part of the loading machine's future
524 841 route is stored and used as reference profiles.
Of course, when determining the position, changes occur as the loading machine moves forward and / or turns to ensure that the bucket is properly filled. In such a case, reliable determination of the position preferably requires that the reference surface in use be changed after the loading machine has traveled a predetermined distance forward or pivoted to a predetermined extent with respect to the original reference surface. This is accomplished by measuring the known wall surface profile used as a reference surface with respect to the current position of the loading machine and by using the obtained measured profile as the reference surface of the loading machine until a need to define a new reference surface arises.
When the bucket is full of explosives, the loading machine starts to reverse and the cutlery procedure based on the rotational movement of the wheels can be simultaneously activated to determine the loading machine's position on the way back.
Accordingly, the measuring means 3, 4 are again used to define the wall profiles of the side walls 1a, 1b and to provide the necessary data for correcting the deviations in the position obtained by the cutlery method.
Figure 3 shows a result obtained in a real measurement situation, where the loading machine has moved 0.5 meters in the direction A indicated in the figure with respect to the wall surface being measured, ie. reference surface. The profiles are placed on top of each other and the loading machine is located at circle B, thus the figure shows how the profiles essentially correspond to each other for the mold. Profile B<sub>O</sub> has been measured first and profile B-ι has been measured after the loading machine has moved 0.5 meters forward in the direction indicated by arrow A.
The invention is described in the foregoing description and is shown in the drawings only as an example and is not limited thereto in any way. Accordingly, instead of a loading machine, the mining machine may be any load transporting vehicle, such as a dump truck or drilling device, which moves in a mine so that its position must be precisely known in order to control and / or use the apparatus. The essential factor is that when the mining machine is moving normally, its position along the route is measured primarily by using the cutlery procedure proportional to the rotation of the wheels and the steering angle or direction of travel, but if even one of the wheels of the machine begins to slip with respect to the ground, the position is determined by of a wall profile measured behind the mining machine preferably, for example, at an angle of 180 °, i.e. at an angle> 90 ° on both sides of the longitudinal axis of the machine
524 841
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rear part. Although the description and drawings show the use of two separate measuring devices for defining the wall profiles in front of and behind the vehicle, it is also possible to use more than two measuring devices appropriately placed to measure a specific area around the vehicle, or only a single measuring device which can define the profiles for the wall surfaces surrounding the vehicle at an angle of, for example, 360 °.
Γ. Q / 1 QAI • υ l. - ί υ -ί · I
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Contents4
7 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7
13 members in 7 offices
Priority claims6
| Document | Office | Kind | Date |
|---|---|---|---|
| 20011006 | Finland | A | |
| 20011006 | Finland | A | |
| 0200406 | Finland | W | |
| 0200406 | Finland | W | |
| FI20010001006 | – | – | – |
| WO2002FI00406 | – | – | – |
Members13
| Document | Office | Kind | |
|---|---|---|---|
| FI20011006A0 | Finland | A0 | |
| FI20011006A | Finland | A | |
| CA2447126A1 | Canada | A1 | |
| WO02093282A1 | World Intellectual Property Organization (WIPO) | A1 | |
| FI111414B | Finland | B | |
| SE0302984D0 | Sweden | D0 | |
| SE0302984L | Sweden | L | |
| US2004138799A1 | United States of America | A1 | |
| ZA200308514B | South Africa | B | |
| SE524841C2This record | Sweden | C2 | |
| US6898503B2 | United States of America | B2 | |
| AU2002255033B2 | Australia | B2 | |
| CA2447126C | Canada | C |
Numbers
- Publication, DOCDB
- 524841
- Publication, EPODOC
- SE524841
- Application
- 2984
- Application, DOCDB
- 0302984
- Application, EPODOC
- SE20030002984
Titles2
- Swedish
- Förfarande och anordning för bestämning av en gruvmaskins position
- English
- Method and apparatus for determining the position of a mining machine
Classification
- CPC, 4
- G01C21/12
- G05D1/024
- G05D1/027
- G05D1/0272
- IPC, 2
- G01C21 12
- G05D1 02
