• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Method of environmental inspection along the track for train for civil use with overhead contact line for supplying electric current for driving the rail vehicle, wherein video and photo recordings of the surroundings along the track, whereby the obtained data is processed off-line and not real-time into qualitative and quantitative measurement results.
    公开号:NL2021942A
    申请号:NL2021942
    申请日:2018-11-06
    公开日:2019-05-13
    发明作者:Tiecken Jacques
    申请人:Molhoek Aannemingsbedrijf Bv；
    IPC主号:
    专利说明:

    green management along a railroad track.
    This invention relates to conducting an environmental inspection, for example as part of green management, along a railroad track for passenger and / or freight transport, such as a train or metro line, with or without overhead line for supplying electric power for driving the rail vehicle. In addition to green management, the environmental inspection can be used to manage the railway or to give drivers the opportunity to gain familiarity with both by viewing the images of the environmental inspection.
    Traditionally, green management takes place using hand and machine mowers and pruning tools. Management of the railroad concerns, for example, the determination of damage and the execution of a repair.
    Planning and checking requires improvement. To this end, a video inspection is proposed, preferably supplemented with environmental photos and / or a sensor that offers the option of determining the distance and / or size of a green object.
    With the method according to the invention, one or more of the following inspections can be carried out: zero recording for the purpose of making a draft maintenance plan, calculation and quotation (inventory of current vegetation, situation, environment, objects, quantities, deviations, details, etc) ); preparation inspection prior to planned work from the maintenance plan (for example two to three times a year); execution inspection during or after execution of planned work (for example two to three times a year); inspection inspection in case of complaints or imposed deviations.
    According to the invention, the recorded photo and / or video and / or sensor data can be used for one or more of the following applications: mapping types of vegetation, height and cover, for example in zones 1, 2 and / or determined by ProRail or 3, quantities, distances, types and number of objects, drivability, accessibility, details; drawing up a draft maintenance plan for the benefit of an offer to the contract team (maintenance engineering); prepare plan and release costs; preparation of production plan (production engineering); monitoring work performed (progress and quality of production); Demonstrate compliance with contract requirements and agreements (ProRail, Contract Team); checking and assessing deviations and complaints; state of an object, such as a relay box, along the track, for example when paint is stained; state of the railroad or associated signals.
    Preferably one or more of the following conditions of use apply: outdoors on rough terrain and / or public roads; during the day (in daylight); outside temperature between -10 ° C and + 40 ° C; Rain IP67; up to wind force 8 Bft; driving an automobile vehicle, for example a utilityquad vehicle (also called "quad" in this document); travel at a maximum speed of 20 km / h; walking over a relatively short distance, for example to places unreachable for the vehicle, preferably a maximum of 25 or 50 meters and / or after a considerable distance has already been covered with the vehicle, for example a minimum of 100 meters and / or the person immediately returns to the vehicle and thereby further along the track over a distance of preferably at least 100 meters; camera mounted on a rail vehicle, for example locomotive or railroad vehicle, for example delivery van.
    Preferably one or more of the following applies to the camera and / or inspection range: at least 180 degrees in one go, such as 360 degrees around (recording range around the vertical axis), for example panoramic or omni-directional, preferably making interactive photo and / or video recordings; shot at once with a single lens or with two lenses, for example fisheye; covering one or more of zonel (up to 6.25 m next to the track), zone2 (up to 14 m next to the track) and zone 3 (from 16.25 to max 50 m next to the track); at least 90 or 180 or 200 degrees in one go, such as 240 degrees (recording range around the horizontal axis), preferably symmetrical for right and left, such as 120 degrees for both right and left; said range preferably with camera kept immobile; make video and photo recordings with the same camera.
    Preferably, for the quality of photo and / or video data and storage, one or more of the following applies: 4K or 3840x2160 dpi or better; stabilized image recording; at least 1 or 2 hours of photo and / or video data storage; at least 20 or 30 or 50 frames per second (fps); storage SD card UHS class 3, minimum 30 or 64GB; GPS coordinates recorded; manual data entry; mini HDMI connection.
    Preferably, for the electrical power supply for the camera, one or more of the following applies: interchangeable battery; capacity at least 1 or 2 hours; 12V charger for charging in a car or on a quad or other vehicle; 220V charger; mini USB connection; while driving, the camera is connected via a power supply cable to the electrical power supply on board the vehicle, so that the camera battery is saved and only used when the person has to leave the vehicle temporarily to take pictures with the camera from a location that the vehicle is unreachable, during which the power cable is disconnected from the source and / or camera.
    Preferably, one or more of the following applies to camera control and monitoring: some or all of the basic functions on the camera (on / off, recording, pause, stop, battery capacity, storage capacity); on remote control, such as Smartphone and / or tablet, some or all basic functions and / or extensive settings and monitor images; data link with camera via Bluetooth or WiFi (option NFC); streaming video.
    Preferably for the accessories one or more of the following applies: carrying bag or backpack; helmet with mounting connection, for example of 0.25 inch type; mounting set, for example of type 0.25 inch (pod, tripod, helmet pod, etc).
    Preferably for the photo and / or video data processing and analysis one or more of the following applies: with included stitching software, preferably running on the camera itself; desktop and laptop; Smartphone; display; VR glasses (for example Samsung Gear, Oculus rift); specialized photo and / or video editing software (Adobe Pro CC); temporary and / or final photo and / or video data storage, for example using a data network and / or on external computer memory, such as a hard disk, preferably at least 1 or 2 TB storage capacity, for example on board the vehicle ; camera and / or vehicle equipped with a data processing unit, such as a processor.
    Preferably, the camera type GARMIN VIRB 360 or at least equivalent is used.
    Preferably, the camera contains one or more of the following: gyroscope; compass; GPS; accelerometer; photo shutter; recording rate at least 75 or 100, for example 120 Mbps; WiFi; battery; microphone, for example for recording comments by the person when the video or photo recordings are made; weight maximum 180 or 200 or 300, for example 160 gr.
    Preferably, an environmental photo is taken per time unit and / or distance unit traveled with the camera that takes the video recordings, for example, so that a photo series is created in which the position from which the next photo was taken differs as the crow flies from the position of the immediately preceding photo over a distance of at least 10 or 20 or 30 or 50 and / or at most 30 or 40 or 60 or 100 meters, for example approximately 25 or 50 meters. This photo series is preferably used for measuring the height and / or width of a green object to determine on the basis thereof whether green maintenance is required, for example mowing or pruning. The environmental photo is preferably made with the same sensors with which the video recording is made and / or is of an omnidirectional type. This photographing and / or the timing thereof are preferably automated, for example controlled by a processing unit, for example on the camera or on board the vehicle.
    A preferred embodiment of the invention includes one or more of the following: a person is seated on or in an automobile vehicle, such as quad, and controls it. The camera is positioned above the level of the person's head, horizontally, preferably straight ahead. For example, the camera is mounted on top of the person's helmet or on the vehicle, for example the roll bar or a specially mounted element, such as a tripod. The quad drives forward, parallel to the railroad tracks, on the inspection path. The camera is at a level at least 1.20 or 1.30 or 1.40 and / or at most 1.50 or 1.70 or 2 meters above the surface on which the quad rests. The vehicle has at least or exactly three or four bicycles on at least or exactly two axles, the bicycles on the same axle have a mutual gap of at least 50 centimeters and / or are located on either side of the center longitudinal axis of the vehicle and / or determine the vehicle width and / or track width of the vehicle and / or are located at the corners of the vehicle, viewed from above; the front wheels are directional; the person is preferably in the open air and / or his trunk and / or head are uncovered by the vehicle from above and / or from the side; the vehicle is free from one or more of: an entrance door, roof, windscreen; rear window; side walls; the vehicle has one or more of: a roll bar to protect the person in the event of a roll over; a propulsion engine, for example combustion engine; a handlebar for directional control; a maximum width of 1.20 or 1.0 or 0.9 or 0.8 meters; wide tires for low wheel pressure; pneumatic tires; a road vehicle; belongs to the tricycle or quadricycle category according to the legislator.
    With the vehicle, a minimum of one hundred or five hundred or one thousand or three thousand meters and / or at least 15 or 25 or 30 minutes consecutively is driven along the track, parallel to it, while the camera makes video and / or photo recordings while driving, preferably without interruption during forward driving of the vehicle or at least for 80 or 90 or 95% of the time that the vehicle is moving forward. Preferably, the camera is not held in the hand and / or is attached to the person or vehicle; and / or the vehicle travels between the track on one side and zones 1, 2 and 3 on the other.
    The camera preferably forms part of a composition which also comprises a sensor for measuring a distance and / or a dimension, such as height, of a green object, or for generating related data. This sensor can also be a camera, preferably of a type adapted to measure a distance and / or dimension, for example a line scan camera or a functionally equivalent camera. This sensor preferably works simultaneously with the camera and / or forms a functional and / or physical unit therewith. Preferably one or more of the measures mentioned for the camera, such as electrical supply, storage and processing of data, method of mounting, level at which the camera is located during operation, also apply to the sensor.
    Preferably, the data that becomes available while driving the vehicle is processed from the camera and / or sensor at a later time in the office. For example, the data from the camera is used for qualitative assessments (such as whether mowing and trimming has been cleared) and the data from the sensor is used for quantitative assessments (such as distance to a green object or a size thereof, for example how high it is) grass is in zone 1 or that a tree in zone 2 is too high).
    The data obtained from the camera and / or sensor are preferably processed off-line and / or not in real time into qualitative and / or quantitative measurement results and / or assessments.
    The camera and the sensor, if any, are associated with a vehicle, possibly with the intervention of the driver when the camera and / or sensor are mounted thereon, for example on the crash helmet.
    A configuration with one, two or three cameras on, preferably the front or rear of, the vehicle, such as a train locomotive, is conceivable for which one or more of the following applies: a high-level camera (e.g. 2 meters or higher) such as at approximately the eye level of the driver in his cabin and / or approximately centrally (in this document "central" refers to the width direction of the vehicle), for example between the impact buffers; one, two or three low-level cameras (e.g., 1, 5 meters or lower) such as at approximately buffer height and / or on the outside of the nearby buffer or on the side of the vehicle, such as the locomotive or central; one, two or three cameras at low level or at a level between low and high level, and / or approximately centrally such as midway between the shock buffers and / or slightly above; a camera range of 180 or 360 degrees; mounted on a forward or side-facing surface of the vehicle; distance in width direction between two nearby cameras at least 0.5 or 1 meter.
    A camera is preferably, temporarily via a carrier or tripod, temporarily mounted on the vehicle with one, two or more magnets or suction cups or Velcro or other temporary fastening means, preferably with adhesive action. The magnets engage each other directly on the vehicle with mutual spacing of at least 0.15 meters, for example plating thereof. The tripod preferably comprises an elongate element, such as a sleeve or tube, with a length of preferably at least 0.15 (tripod 2) or 1 meter (tripod 1), which is preferably mounted standing up, such as approximately vertically, on the vehicle is held in a stable position on the vehicle by the magnets, preferably exclusively by the magnets. The tube is preferably repeatably divisible, preferably in approximately two equally long sections, for easy storage; the length parts are preferably each at least 0.3 meters long. The magnets are preferably at least 30 centimeters apart along the length of the tube, preferably on the same tube part. The tube preferably has a cantilevered length part over a length of at least 0.3 or 0.5 meters, calculated from the camera or camera holder. A connecting wire preferably extends from the camera at the top end of the tube through the tube to the bottom end of the tube. The camera holder is located on the upper end of the tube, preferably belonging to the cantilevered part.
    In the force path between the magnet and the camera or camera holder there are preferably (preferably forming a single force-bearing structural strand): at least one or two or three selectively clampable ball joints, preferably of a double type (ie a ball joint with two balls in a common clamping scale and a connecting stub protruding from each ball), possibly mutually in series with preferably a connecting rod therebetween; and / or a selectively clampable hinge that allows pivoting about a single axis (also referred to in this document as "pin hinge"); and / or a carrier or tripod, for example sleeve-shaped, which contains, for example, an electric battery. Preferably in the order: magnet, carrier or tripod, one or more selectively clampable ball joints, selectively clampable pin hinge, camera holder.
    In one application, a first selectively clampable double ball joint is fixed on the one hand to a second selectively clampable double ball joint and on the other hand fixed to a selectively clampable pin hinge that carries the camera holder. Due to the two selectively clampable double ball joints in series, the number of camera orientations to be realized is large.
    The ball of a ball joint is preferably immovably mounted on the carrier or the magnet and / or the ball protrudes outside the carrier.
    A selectively clampable ball joint preferably comprises: the ball is confined between two opposite shell halves which, for example by turning an operating knob, move towards each other and thus clamp the ball tightly between them. A connecting rod can carry a ball at both ends or a ball at one end and a selectively clampable pin hinge or the camera holder at the other end.
    An alternative to a selectively clampable ball joint is another type of hinge that can be selectively fixed in a hinge position and allows hinges in two directions perpendicular to each other, optionally supplemented by rotation about the axis perpendicular to both hinge axes.
    For example, the selectively clampable pin hinge comprises two hinge halves that interact with each other and between which releasable clamping means are provided, for example, one hinge half providing one, two or more parallel slits which can be narrowed by actuating a drive means, such as by turning a knob, whereby the lips of the other hinge half engaging in these slots are fixed in orientation relative to the ball so that both hinge halves are mutually immobile. For example, a ball of a selectively clampable single or double ball joint carries one hinge half and the other hinge half is on the camera holder.
    The patent protection non-limiting embodiments are shown in the accompanying drawing which shows in;
    FIG. 1 a perspective view of a train track; FIG. 2 a cross section of a train track;
    FIG. 3 a perspective view of two parallel train tracks;
    FIG. 4 a photo of a person on a utilityquad vehicle; FIG. 5 a side photograph of a quad;
    FIG. 6 is a rear view of the quad of FIG. 5;
    FIG. 7 the recording range of a preferred camera; and FIG. 8-10 the zone distribution with different track location;
    FIG. 11 is a front view of a locomotive;
    FIG. 12 and 13 a perspective view of the front of a locomotive of various types;
    FIG. 14 is a perspective view of the front of a rail / road delivery van;
    FIG. 15 a sketch of a tripod;
    FIG. 16 the stand of fig. 15 mounted and collapsed; FIG. 17 is a perspective view of a detail of the stand of FIG. 15;
    FIG. 18 is a perspective view of a detail of the tripod of FIG. 15;
    FIG. 19 a perspective view of a camera assembly;
    FIG. 20 - 24 a camera assembly shown from different viewing directions;
    FIG. 25 a perspective view of a part of a camera assembly;
    FIG. 26 a selectively clampable double ball joint in exploded view;
    FIG. 27 a detail of FIG. 23; and
    FIG. 28 a part of the camera assembly.
    The railway of fig. 1 is electrified, so there are portals (one of which is visible) along it, which carry the contact wire. FIG. 2 shows the gantry leg 6 founded by a steel-based prefab element 5 next to or in the edge area of the ballast bed 2, which supports the sleepers 3 with the rails 4 thereon. An inspection path 7 runs along the track as shown in FIG.
    FIG. 4-6 show an example of a quad. Above the head of the person seated on the quad are the camera and the sensor (not visible). The camera takes video and photo and for that purpose has a viewing angle of 360 degrees around the vertical and 120 degrees to the right and left around the horizontal (see fig. 7). Thus, when viewing the photo or video, it can be viewed in any desired horizontal viewing direction (e.g., straight forwards or backwards or to the right or left) and the video or photo covers the area from straight up to 30 degrees down from the horizontal. This offers interactive panorama images. The sensor makes image recordings of the plants that can later be used to determine the distances and dimensions of a green object.
    FIG. 8 shows a track in ground level, FIG. 9 a track in elevation, FIG. 10 a track in burial. The intention is for the quad to travel over the inspection path 7. The zones 1, 2 and 3 are indicated by I, II and III, respectively.
    FIG. 11 and 12 show a configuration with three cameras, the locations of which are indicated by arrows A, B and C. The camera according to arrow A is at a high level (2 meters or higher) at approximately the eye level of the operator in his cabin and approximately in the middle between the buffer buffers. The camera according to arrow B is at a low level (1.5 meters or lower) at approximately buffer height and on the outside of the nearby buffer or on the side of the locomotive. The camera according to arrow C is at a low level or at a level between low and high level, approximately midway between the shock buffers and slightly above. Every camera A, B and C has a view of 180 or 360 degrees. All cameras are mounted on a forward-facing surface of the locomotive. One or two cameras A, B or C may be missing from the configuration. Camera A is located at the end of the cantilevered longitudinal section of the tube 21 (see also Fig. 15).
    According to FIG. 13, the configuration includes the high-level camera A and the low-level camera C, both on the outside of the nearby buffer and both mounted on the lateral surface of the locomotive.
    FIG. 14 shows three cameras A, B, C at low level, camera A in the middle between cameras B and C. Alternatively, camera A is at a high level, above the windshield.
    The tripod used for camera A shows figures 15 and 16 and is temporarily mounted to the vehicle with two magnets 20 or suction cups or Velcro or other temporary fastening means, preferably with adhesive action. The stand comprises a tube 21 with a length of preferably at least 1 meter, which is mounted approximately vertically on the vehicle. The tube is preferably repeatably divisible into approximately two equally long pieces for easy storage. The magnets 20 are at least 30 centimeters apart along the length of the tube, on the same tube part. A connecting wire 22 runs from the camera A at the upper end of the tube 21 through the tube 21 to the lower end of the tube 21.
    FIG. 17 shows the attachment of the magnet 20 to the tube 21 through a selectively clampable ball joint 23.
    FIG. 18 shows the attachment of the camera holder 24 to the tube 21 through a selectively clampable ball joint 23 and a selectively clampable pin hinge 25.
    FIG. 19 shows the attachment of the camera holder 24 to a magnet 20 through a selectively clampable double ball joint 23 and a selectively clampable pin hinge 25.
    FIG. 20 ~ 24 show the attachment of the camera holder 24 to a tubular support 26 through a selectively clampable double ball joint 23 and a selectively clampable pin hinge 25. The tubular support 26 houses a battery to which the camera is connected via the wire 22. Camera B is mounted on the camera holder (fig. 20). FIG. 23 and 24 show the use of a selectively clampable double ball joint 28 which on the one hand is attached via rod 29 to the selectively clampable double ball joint 23 and on the other hand is attached to the selectively clampable pin hinge 25 which carries the camera holder 24. Due to the two selectively clampable double ball joints 23 in series, the number of camera orientations to be realized is large.
    FIG. 25 shows the tubular support 26 of FIG. 20. The ball 27 of the ball joint 23 is immovably mounted on the support 26. The ball 27 protrudes outside the carrier 26.
    FIG. 26 shows that the ball 30 and 27 (see FIG. 25) is confined between the shell halves 31, 32 which move towards each other by turning the knob 33 (arrow P) and thus clamp the balls 30, 37 rotatably. The rod 29 can carry a ball 30 at both ends, as shown, or a ball 30 at one end and at the other end the selectively clampable pin hinge 25 (see Fig. 27) or the camera holder 24.
    FIG. 27 shows on a larger scale the structural relationship between the camera holder 24, the selectively clampable pin hinge 25, the selectively clampable double ball joint 28 with rotary knob 33, and the rod 29. FIG. 28 shows a portion of the selectively clampable pin hinge 25. The ball 34 forms part of the selectively clampable double ball joint 28 (see FIG. 27) and attached to it is the hinge half that provides two slits 36 that can be narrowed by turning the knob 35 whereby the lips of the other hinge half (not shown) engaging in these gaps 36 are fixed in orientation relative to the ball 34.
    The features disclosed herein can be taken together individually in any other conceivable combination and permutation to provide an alternative to the invention. Also included are technical equivalents and genus or generalizations of the measures disclosed. A measure of an example is also generally applicable within the scope of the invention. A measure disclosed herein, for example of an example, can be readily generalized for inclusion in a general definition of the invention, for example found in a patent claim.
    权利要求:
    Claims (4)
    [1]
    A method of environmental inspection along the track for train for civil use with overhead contact line for supplying electric current for driving the rail vehicle, wherein video and photo recordings are made of a vehicle from a vehicle moving parallel to the track environment along the track, where the obtained data is processed off-line and not real-time into qualitative and quantitative measurement results, the camera is equipped with two lenses that are used simultaneously for making every shot and is while the vehicle is moving forward straight ahead and the straight ahead of the camera is not impeded by the vehicle and with the camera every shot is taken in one go with the two lenses with the camera at least 180 degrees around the vertical axis and at least 200 degrees around the horizontal axis records per shot and the camera is associated with stitching software that allows the camera recordings are edited and each shot covers both sides of the track (up to 6.25m next to the track), zone2 (up to 14m next to the track) and zone3 (from 16.25 to max 50m next to the track) and the camera is equipped with a gyroscope, compass, GPS, accelerometer, photo shutter, recording rate of at least 100 Mbps, WiFi, battery, microphone; is automated with the vehicle for each distance unit traveled, controlled by a processing unit associated with the vehicle or camera, an environmental photo taken with the camera that continuously takes the video recordings, so that a photo series is created in which the position from which the next photo was taken , as the crow flies differs with the position of the immediately preceding photo over a distance of a minimum of 30 and a maximum of 100 meters, the environmental photo is made with the same sensors with which the video recording is made and is of omnidirectional type; the vehicle is driven along the track for at least 30 consecutive minutes, parallel to it, while the camera is making video and photo recordings, uninterrupted while the vehicle is moving forwards.
    [2]
    2. A method according to claim 1, the vehicle moving parallel to the track is a four-wheel utilityquad vehicle designed as a road vehicle on which a person is seated who drives this vehicle which drives forward parallel along the track on the inspection path and with the head above the head of the person associated with the vehicle, mounted on the vehicle or the person, during forward driving, video and photo recordings are made of the surroundings along the track and, in addition, video and photo cameras are also associated with a vehicle line scan camera recordings made of the surroundings along the track; the vehicle is propelled at speeds of up to 20 km / h; after the vehicle has been driven along the track for at least 100 meters, the person leaves the vehicle and walks, taking the camera, 50 meters away from the vehicle, takes pictures with the camera and returns to the vehicle immediately, steps back back up and continue driving along the track for a distance of at least 100 meters while the camera is in the meantime; while driving, the camera is connected via a power supply cable to the electrical power supply on board the vehicle, the camera battery is only used when the person leaves the vehicle temporarily to take pictures with the camera from a location away from the vehicle, during which the power cord is disconnected from the camera; the camera is at a level of at least 1.20 and at most 2 meters above the surface on which the vehicle rests; the vehicle has exactly four bicycles on exactly two axes, the bicycles on one and the same axle have a mutual space of at least 50 centimeters and are located on either side of the center longitudinal axis of the vehicle and determine the vehicle width and track width of the vehicle and are located at the corners of the vehicle, viewed from above, the front wheels are directionally controlled, the person is in the open air and his trunk and head are uncovered by the vehicle from above and to the side, the vehicle is free from an entrance door, roof, windscreen, rear window, side walls; the vehicle has a roll-over bar to protect the person in case of a rollover, a propulsion engine, a steering-wheel for direction control, a maximum width of 1.0 meter, pneumatic tires.
    [3]
    3. Method according to claim 1, the vehicle is a train locomotive that runs over the track and there are three cameras at the front of the locomotive, each of which is designed according to claim 1, and all three of which are attached to a forward facing surface of the locomotive. vehicle; a high-level camera at approximately eye level of the operator seated in his cab and centrally, based on the width direction of the vehicle, two low-level cameras at approximately buffer height, one on the outside of the near buffer near the side of the vehicle the other centrally, based on the width direction of the vehicle, between the buffers so that these two cameras mutually have a distance in width direction of at least 1 meter and the high-level camera is vertically above the centrally placed low-level camera; all three of these cameras make continuous recordings while the vehicle is moving; the high-level camera is temporarily mounted on the vehicle via a tripod with two magnets, the magnets engage directly with each other on the cladding of the vehicle with a mutual gap of at least 0.30 meters; the stand comprises a tube, with a length of at least 1 meter, mounted vertically on the vehicle by only the magnets in a stable position on the vehicle; the tube is repeatably divisible into approximately two equally long sections, for easy storage, the length sections are each at least 0.3 meters long; the magnets are located on the same tube part; the tube has a cantilevered length section over a length of at least 0.5 meters, calculated from the camera; a connecting wire runs from the camera at the upper end of the tube through the tube to the lower end of the tube and is connected at the lower end to an electric battery for the camera located outside the tube; the camera is on top of the upper end of the tube belonging to the cantilevered longitudinal section; the two low-level cameras are each temporarily mounted on the vehicle via a carrier with two magnets, the magnets engage directly with each other on the cladding of the vehicle with mutual spacing of at least 0.15 meters, the carrier comprises a sleeve with a length of at least 0.15 meters in which the electric battery for powering the camera is stored.
    [4]
    A train locomotive for carrying out the method according to claim 3, which is equipped with three cameras, each of which is temporarily attached to the locomotive by two magnets; for each low-level camera, there are two selectively clampable ball joints of a double type in the force path between the magnet and the camera, mutually applied in series with a connecting rod between them and forming a single force-bearing structural strand and selectively clampable in series therewith pin hinge that allows swiveling around a single axis; with said elements in the order: magnet, carrier, selectively clampable ball joints, selectively clampable pin hinge, camera; the ball of a ball joint being immovably mounted on the carrier and this ball protruding outside the carrier; for the high-level camera, there is a selectively clampable ball joint in the force path between the magnet and the camera and a selectively clampable pin joint in series therewith that allows pivoting about a single axis; with said elements in the order: magnet, selectively clampable ball joint, tripod, selectively clampable pin hinge, camera; wherein a ball joint of a double type is designed with two balls in a common clamping shell while a connecting stub protrudes from each ball; in the case of a selectively clampable ball joint, the ball is confined between two opposite shell halves which, by turning an operating knob, move towards each other and thus clamp the ball tightly between them; two selectively clampable ball joints are attached to each other by a connecting rod that carries a ball of one or other ball joint at both ends; a selectively clampable ball joint is attached to the selectively clampable pin hinge with a connecting rod fixed to its one ball; the selectively clampable pin hinge comprises two hinge halves which interact with each other and between which releasable clamping means are provided, one hinge half providing two or more parallel slits which can be narrowed by operating a rotary knob, whereby the lips of the other hinge half engaging in these slits orientation with respect to the other hinge half can be fixed so that both hinge halves are mutually immobile; a ball of a selectively clampable ball joint carries one hinge half and the other hinge half is on the camera.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-03-10| PD| Change of ownership|Owner name: STRUKTON RAILINFRA B.V.; NL Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: MOLHOEK AANNEMINGSBEDRIJF BV Effective date: 20210302 |
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