DE4328031A1 - Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antenna - Google Patents
Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antennaInfo
- Publication number
- DE4328031A1 DE4328031A1 DE4328031A DE4328031A DE4328031A1 DE 4328031 A1 DE4328031 A1 DE 4328031A1 DE 4328031 A DE4328031 A DE 4328031A DE 4328031 A DE4328031 A DE 4328031A DE 4328031 A1 DE4328031 A1 DE 4328031A1
- Authority
- DE
- Germany
- Prior art keywords
- antenna
- video camera
- pipe
- antenna arrangement
- control center
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 230000007547 defect Effects 0.000 claims description 5
- 230000005670 electromagnetic radiation Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 2
- 230000002596 correlated effect Effects 0.000 claims 2
- 230000005855 radiation Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/48—Indicating the position of the pig or mole in the pipe or conduit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
- G01S13/867—Combination of radar systems with cameras
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/881—Radar or analogous systems specially adapted for specific applications for robotics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/20—Stereoscopic displays; Three-dimensional displays; Pseudo-three-dimensional displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/30—Inspecting, measuring or testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Robotics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Erkennen einer Fehlstelle nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for recognizing a Flaw according to the preamble of claim 1.
Die Erfindung bezieht sich insbesondere auf das Erkennen von Fehlstelle in sogenannten nicht begehbaren Rohren, insbesondere Kanalisationsrohren, mit einem Innendurchmes ser kleiner 1 m. Es ist bekannt, ein derartiges von innen dadurch auf eine mögliche Fehlstelle zu überprüfen, daß an einem sogenannten Kontrollschacht (Kontrollöffnung) ein sogenannter Molch in das zu überprüfende Rohr eingebracht wird. Dieser Molch besteht aus einem elektrisch angetrie benen Fahrwagen, an dem zumindest eine Videokamera und ge gebenenfalls eine zugehörige Beleuchtungseinrichtung befe stigt ist. Der Molch ist über mindestens ein Kabel mit einer Steuerzentrale verbunden, die sich außerhalb des Kontrollschachts (Kontrollöffnung) befindet und die bei spielsweise in einem Kraftfahrzeug installiert wird. In der Steuerzentrale erfolgt eine Fernbedienung des Fahrwa gens und/oder der Videokamera sowie eine Auswertung der von der Videokamera ausgesandten (Video-)Signale.The invention relates in particular to recognition of defects in so-called inaccessible pipes, especially sewer pipes with an inside diameter less than 1 m. It is known such from the inside thereby to check for a possible fault that a so-called inspection shaft (inspection opening) so-called newt introduced into the pipe to be checked becomes. This newt consists of an electrically driven benen trolley, at least one video camera and ge if necessary, an associated lighting device is increasing. The pig is connected to at least one cable a control center connected outside of Inspection shaft (inspection opening) is located and at for example, is installed in a motor vehicle. In The control center is remotely controlled gens and / or the video camera and an evaluation of the (Video) signals emitted by the video camera.
Ein solches Verfahren hat den Nachteil, daß lediglich eine Auswertung im sichtbaren optischen Spektralbereich und/oder in einem daran angrenzenden Spektralbereich, z. B. dem Infrarotbereich, ermöglicht wird. Damit ist in nachteiliger Weise lediglich ein Teil der möglichen Fehl stellen erkennbar.Such a method has the disadvantage that only one Evaluation in the visible optical spectral range and / or in an adjacent spectral range, e.g. B. the infrared range. With that is in disadvantageously only part of the possible mistake make recognizable.
Der Erfindung liegt die Aufgabe zugrunde, ein gattungsge mäßes Verfahren anzugeben, mit dem in kostengünstiger und zuverlässiger Weise eine optisch nicht erkennbare Fehl stelle erkennbar wird.The invention has for its object a genus to specify moderate procedure with which in less expensive and reliably an optically undetectable fault position becomes recognizable.
Diese Aufgabe wird gelöst durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale. Vorteil hafte Ausgestaltungen und/oder Weiterbildungen sind den Unteransprüchen entnehmbar.This problem is solved by the in the characteristic Part of claim 1 specified features. Advantage sticky refinements and / or further training are the Removable subclaims.
Ein erster Vorteil der Erfindung besteht darin, daß eine mögliche Fehlstelle erkennbar wird, z. B. eine Korrosion an der Außenseite des Rohres, ein dem Rohr benachbarter Hohlraum, sowie eine Hinterspülung des Rohres.A first advantage of the invention is that a possible flaw becomes recognizable, e.g. B. corrosion on the outside of the tube, one adjacent to the tube Cavity, as well as a backwashing of the pipe.
Die Erfindung beruht auf der Erkenntnis, daß insbesondere nicht begehbare Kanalisationsrohre, die einen Innendurch messer kleiner 1 Meter besitzen, im allgemeinen aus einem nichtmetallischen Material, z. B. gebranntem Ton, Keramik oder Beton, bestehen. Ein solches Material ist zumindest zum Teil für elektromagnetische Strahlung durchlässig, die auch in der Radartechnik verwendet wird. Zur Überprüfung solche Rohre sind daher aus der Radartechnik an sich be kannte Verfahren anwendbar. Die Kombination solcher Ver fahren mit den bereits erwähnten optischen Verfahren er möglicht eine kostengünstige, zuverlässige und schnelle Überprüfung eines Rohres.The invention is based on the knowledge that in particular sewer pipes that cannot be walked through, possess knives smaller than 1 meter, generally from one non-metallic material, e.g. B. fired clay, ceramics or concrete. Such a material is at least partially permeable to electromagnetic radiation, the is also used in radar technology. For checking Such tubes are therefore from the radar technology itself known methods applicable. The combination of such ver drive with the optical methods already mentioned enables a cost-effective, reliable and fast Checking a pipe.
Zum Überprüfen eines Kanalisationsrohres, das im Erdboden verlegt ist, kann das nachfolgend beschriebene Verfahren besonders vorteilhaft mit einem Verfahren kombiniert wer den, das in der am gleichen Tag eingereichten deutschen Patentanmeldung P . . . (internes Aktenzeichen: UL 92/66) näher beschrieben ist.To check a sewer pipe that is in the ground The procedure described below can be misplaced particularly advantageously combined with a method the one in the German submitted on the same day Patent application P. . . (internal file number: UL 92/66) is described in more detail.
Die Erfindung wird im folgenden anhand von Ausführungsbei spielen näher erläutert.The invention is described below with reference to exemplary embodiments play explained in more detail.
Bei dem eingangs erwähnten Fahrwagen, der zumindest mit einer Videokamera bestückt ist, wird an seinem vorderen Ende (dem Kabelanschluß gegenüberliegenden Ende) eine um die Längsachse des Molches oder des Rohres drehbare Anten nenanordnung angebracht. Diese befindet sich vorzugsweise innerhalb eines sogenannten Radoms, das die Antennenanord nung vor Umwelteinflüssen, insbesondere Feuchtigkeit, schützt. Die Antennenanordnung wird für eine breitbandige elektromagnetische Strahlung ausgelegt, z. B. für den Fre quenzbereich 1 GHz bis 2 GHz oder 2 GHz bis 4 GHz oder 6 GHz bis 10 GHz oder eine Kombination der Frequenzbereiche. Dabei ist der gewählte Frequenzbereich von dem Anwendungs fall abhängig, insbesondere von Bodenbeschaffenheit sowie der gewünschten Eindringtiefe und/oder Tiefenauflösung. Die Antennenanordnung besteht aus einer Sendeantenne, die vorzugsweise als Hornstrahler ausgebildet wird, und einer davon getrennten Empfangsantenne, die z. B. ebenfalls ein Hornstrahler ist. Alternativ dazu sind weitere breitban dige Antennenanordnungen, z. B. Spiralantennen, verwendbar. Die Antennenanordnung wird nach einem aus der Radartech nik bekannten FMCW-Verfahren ("frequency modulation conti nous wave") betrieben,: das auch als (Radar-)Dauerstrich- Verfahren mit einer Frequenzmodulation bezeichnet werden kann. (Es wird beispielsweise mit einer Sendeleistung von 30 mW, einer Rampendauer von 12,8 ms sowie einer Abtast frequenz von 7 kHz gearbeitet.) Vorzugsweise wird die Mo dulation des FMCW-Radars mit einer linearen Kennlinie aus gebildet, um einen linearen Zusammenhang zwischen den Echozentren und der abgemischten Niederfrequenz zu erhal ten. Die reflektierten, z. B. von der Rohrinnenwand, der Rohraußenwand, dem das Rohr umgebenden Material, Strah lungsanteile werden von der Antennenanordnung empfangen, mit einem aus der Radartechnik bekannten Verfahren mit Hilfe der Datenverarbeitungsanlage verarbeitet und auf ei nem Sichtschirm dargestellt, vorzugsweise in einer räumli chen dreidimensionalen Darstellungsweise (3D-Darstellung). Damit ist eine zuverlässige und kostengünstige Erkennung und/oder Klassifizierung von Fehlstellen und/oder der diese umgebenden Bereiche, z. B. Hohlräume, Hinterspülun gen, kontaminierte Erdbereiche, möglich. Es sind auch mög liche Fehlstellen, z. B. Korrosion der Außenwand, erkenn bar.In the carriage mentioned at the beginning, which at least with A video camera is populated on its front One end (opposite the cable connection) the longitudinal axis of the pig or tube rotatable antenna attached arrangement. This is preferably located within a so-called radome, which is the antenna array against environmental influences, especially moisture, protects. The antenna arrangement is for a broadband designed electromagnetic radiation, for. B. for Fre Frequency range 1 GHz to 2 GHz or 2 GHz to 4 GHz or 6 GHz to 10 GHz or a combination of the frequency ranges. The selected frequency range is based on the application case dependent, in particular on the nature of the floor and the desired depth of penetration and / or depth resolution. The antenna arrangement consists of a transmitting antenna is preferably designed as a horn, and one of which separate receiving antenna, the z. B. also a Horn blaster is. Alternatively, there are more broadband Dige antenna arrangements, for. B. spiral antennas can be used. The antenna arrangement is based on one of the radar tech known FMCW method ("frequency modulation conti nous wave ") operated: also as a (radar) continuous wave Methods with a frequency modulation can be called can. (It is, for example, with a transmission power of 30 mW, a ramp duration of 12.8 ms and a scan frequency of 7 kHz.) The Mo the FMCW radar with a linear characteristic formed a linear relationship between the Echo centers and the mixed low frequency The reflected, e.g. B. from the inner tube wall, the Pipe outer wall, the material surrounding the pipe, beam shares are received by the antenna arrangement, with a method known from radar technology Processed using the data processing system and on egg Nem screen shown, preferably in a room Chen three-dimensional representation (3D representation). This is a reliable and inexpensive detection and / or classification of defects and / or the these surrounding areas, e.g. B. cavities, backwash contaminated areas of the earth. It is also possible Liche defects, e.g. B. corrosion of the outer wall bar.
Es ist nun besonders vorteilhaft, diese 3D-Darstellungen mit den von der Videokamera erzeugten (optischen) Auswer tungen zu kombinieren. Dieses ist möglich, da die Anord nungen der Videokamera und der Antennenanordnung auf dem Molch bekannt sind. Weiterhin wird die räumliche Lage des Molches sowie die Lage (Blickrichtung) der Videokamera so wie der Antennenanordnung mit Hilfe von Lagesensoren er mittelt. Mit diesen Informationen ist eine zuverlässige Zuordnung der an sich unterschiedlichen (voneinander unab hängigen) Daten möglich. Eine solche Kombination ermög licht eine besonders genaue und zuverlässige Ermittlung und Klassifikation einer Fehlstelle.It is now particularly advantageous to have these 3D representations with the (optical) ejector generated by the video camera to combine. This is possible because of the arrangement of the video camera and the antenna arrangement on the Newt are known. Furthermore, the spatial location of the Molches as well as the position (direction of view) of the video camera like the antenna arrangement with the help of position sensors he averages. Having this information is reliable Assignment of the different (independent from each other dependent) data possible. Such a combination enables light a particularly precise and reliable determination and classification of a defect.
Die Erfindung ist nicht auf die beschriebenen Ausführungs beispiele beschränkt, sondern sinngemäß auf weitere an wendbar. Beispielsweise ist es möglich, die Frequenz und/oder den Frequenzbereich der Antennenanordnung um schaltbar zu gestalten, z. B. auf einen Frequenzbereich kleiner 2 GHz. Damit ist es beispielsweise möglich, mit einer hohen Frequenz die Wandung des Rohres zu überprüfen und bei einer Fehlstelle, z. B. einem Loch, auf eine nied rige Frequenz umzuschalten, um damit die genauen Ausmaße eines möglicherweise kontaminierten Erdreiches zu ermit teln. Weiterhin ist es möglich, andere Rohre, z. B. Was serrohre, zu überprüfen sowie von einer Schutz- und/oder Isolierschicht ummantelte Rohre.The invention is not based on the embodiment described examples limited, but analogously to others reversible. For example, it is possible to change the frequency and / or the frequency range of the antenna arrangement switchable design, e.g. B. on a frequency range less than 2 GHz. This makes it possible, for example, with to check the wall of the pipe at a high frequency and in the event of a fault, e.g. B. a hole on a low frequency to switch to the exact dimensions of a possibly contaminated soil teln. It is also possible to use other pipes, e.g. B. What serrohre to check and from a protective and / or Insulating layer covered pipes.
Claims (8)
- - ein Fahrwagen in dem Rohr bewegt wird,
- - auf dem Fahrwagen zumindest eine Videokamera befestigt wird,
- - der Fahrwagen und die Videokamera über ein Kabel mit ei ner Steuerzentrale, die sich außerhalb des Rohres befin det und in der eine Steuerung des Fahrwagens und der Vi deokamera sowie eine Auswertung der Signale der Videoka mera erfolgt, verbunden werden und
- - der Ort des Fahrwagens mit Hilfe der Länge des abgespul ten Kabels bestimmt wird, dadurch gekennzeichnet
- - daß an dem Fahrwagen zusätzlich eine um die Längsachse des Rohres drehbare Antennenanordnung befestigt wird,
- - daß die Antennenanordnung eine Sende- und eine Empfangsantenne für elektromagnetische Strahlung enthält,
- - daß die Frequenz der elektromagnetischen Strahlung in Abhängigkeit von dem Material der Wandung des Rohres so gewählt wird, daß die Wandung von der Strahlung zumindest teilweise durchdrungen wird,
- - daß von der Wandung und/oder von dem das Rohr um gebenden Material reflektierte Strahlung von der Empfangsantenne empfangen und in der Steuerzen trale ausgewertet wird, und
- - daß die von der Videokamera und der Empfangsan tenne ausgesandten Signale in der Steuerzentrale korreliert und auf einem Sichtschirm dargestellt werden.
- - a carriage is moved in the tube,
- at least one video camera is attached to the trolley,
- - The trolley and the video camera via a cable with egg ner control center, which is located outside the pipe and in which a control of the trolley and the video camera and an evaluation of the signals of the Videoka mera takes place, and
- - The location of the trolley is determined with the help of the length of the cable spooled, characterized
- that an antenna arrangement rotatable about the longitudinal axis of the tube is additionally fastened to the carriage,
- that the antenna arrangement contains a transmitting and a receiving antenna for electromagnetic radiation,
- that the frequency of the electromagnetic radiation is selected as a function of the material of the wall of the tube so that the wall is at least partially penetrated by the radiation,
- - That from the wall and / or from the tube around giving material reflected radiation received by the receiving antenna and evaluated in the control center, and
- - That the signals emitted by the video camera and the receiving antenna are correlated in the control center and displayed on a screen.
- - die von der Videokamera ausgesandten Videosignale auf einem Sichtschirm dargestellt werden,
- - die von der Antennenanordnung empfangenen Signale auf einem Sichtschirm dargestellt werden und
- - zumindest bei Vorliegen einer Fehlstelle die Dar stellung der Videokamera und der Antennenanordnung korreliert werden.
- the video signals emitted by the video camera are displayed on a display screen,
- - The signals received by the antenna arrangement are displayed on a screen and
- - At least in the presence of a defect, the Dar position of the video camera and the antenna arrangement are correlated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4328031A DE4328031A1 (en) | 1992-09-24 | 1993-08-20 | Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antenna |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4231883 | 1992-09-24 | ||
| DE4328031A DE4328031A1 (en) | 1992-09-24 | 1993-08-20 | Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4328031A1 true DE4328031A1 (en) | 1994-03-31 |
Family
ID=6468655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4328031A Withdrawn DE4328031A1 (en) | 1992-09-24 | 1993-08-20 | Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antenna |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4328031A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995014920A1 (en) * | 1993-11-24 | 1995-06-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for detecting totally or partially hidden non-homogeneities by microwave radiation |
| RU2156917C1 (en) * | 1999-10-20 | 2000-09-27 | ЗАО "Нефтегазкомплектсервис" | Device for directional control of internal surfaces of pipe lines |
| WO2000068515A1 (en) * | 1999-05-10 | 2000-11-16 | Thames Water Utilities Limited | Stabilisation of ground |
| DE10057373A1 (en) * | 2000-11-18 | 2002-05-23 | Jt Elektronik Gmbh | Dirt-insensitive methods for detecting and determining the extent of dirt deposits in sewers for use in conjunction with a high pressure cleaning jet so that the effectiveness of cleaning can be accessed |
| EP1643044A3 (en) * | 2004-10-02 | 2008-04-16 | GBM Wiebe Gleisbaumaschinen GmbH | Vehicle for inspecting sewers and method of inspecting sewers |
| DE102008031636A1 (en) * | 2008-07-04 | 2010-01-14 | Siemens Aktiengesellschaft | Inaccessible tubing system e.g. water pipe system, measuring method, involves placing sensor device with sensor e.g. ultrasonic sensor, into inaccessible tubing system, and calculating model of system based on provided sensor data |
| US9115842B2 (en) | 2009-12-30 | 2015-08-25 | Sewervue Technology Corp. | Apparatus and method for inspection of underground pipes |
| US9219886B2 (en) | 2012-12-17 | 2015-12-22 | Emerson Electric Co. | Method and apparatus for analyzing image data generated during underground boring or inspection activities |
| CN115086569A (en) * | 2022-06-10 | 2022-09-20 | 湖南康桥智能科技有限公司 | Method for acquiring images of bottom of super-large bridge based on networking camera |
-
1993
- 1993-08-20 DE DE4328031A patent/DE4328031A1/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995014920A1 (en) * | 1993-11-24 | 1995-06-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for detecting totally or partially hidden non-homogeneities by microwave radiation |
| WO2000068515A1 (en) * | 1999-05-10 | 2000-11-16 | Thames Water Utilities Limited | Stabilisation of ground |
| GB2364110A (en) * | 1999-05-10 | 2002-01-16 | Thames Water Utilities | Stabilisation of ground |
| GB2364110B (en) * | 1999-05-10 | 2003-08-06 | Thames Water Utilities | Stabilisation of ground |
| RU2156917C1 (en) * | 1999-10-20 | 2000-09-27 | ЗАО "Нефтегазкомплектсервис" | Device for directional control of internal surfaces of pipe lines |
| DE10057373A1 (en) * | 2000-11-18 | 2002-05-23 | Jt Elektronik Gmbh | Dirt-insensitive methods for detecting and determining the extent of dirt deposits in sewers for use in conjunction with a high pressure cleaning jet so that the effectiveness of cleaning can be accessed |
| EP1643044A3 (en) * | 2004-10-02 | 2008-04-16 | GBM Wiebe Gleisbaumaschinen GmbH | Vehicle for inspecting sewers and method of inspecting sewers |
| DE102008031636A1 (en) * | 2008-07-04 | 2010-01-14 | Siemens Aktiengesellschaft | Inaccessible tubing system e.g. water pipe system, measuring method, involves placing sensor device with sensor e.g. ultrasonic sensor, into inaccessible tubing system, and calculating model of system based on provided sensor data |
| US9115842B2 (en) | 2009-12-30 | 2015-08-25 | Sewervue Technology Corp. | Apparatus and method for inspection of underground pipes |
| US9219886B2 (en) | 2012-12-17 | 2015-12-22 | Emerson Electric Co. | Method and apparatus for analyzing image data generated during underground boring or inspection activities |
| CN115086569A (en) * | 2022-06-10 | 2022-09-20 | 湖南康桥智能科技有限公司 | Method for acquiring images of bottom of super-large bridge based on networking camera |
| CN115086569B (en) * | 2022-06-10 | 2024-04-19 | 湖南康桥智能科技有限公司 | Extra-large bridge bottom image acquisition method based on networking camera |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4242541C2 (en) | Device for locating ammunition located below the earth's surface | |
| DE202016008526U1 (en) | Device for measuring the diameter and / or the wall thickness of a strand | |
| DE19714570A1 (en) | Multi-steel radar system | |
| DE60031000T2 (en) | Ground penetrating radar system and method for detecting an object on or under a ground surface | |
| DE3244358A1 (en) | DEVICE FOR DETECTING OBSTACLES AS A MANEVERING AID WHEN PARKING OR TURNING A MOTOR VEHICLE | |
| DE102005016106A1 (en) | Method and device for imaging test objects with the aid of millimeter waves, in particular for checking persons for suspicious objects | |
| EP1285239A1 (en) | Level meter | |
| DE4328031A1 (en) | Fault detection system for drainage pipes - using pig supporting video camera for visual examination and radar antenna | |
| DE60124919T2 (en) | 3D BOREHOLE RADAR ANTENNA | |
| DE10233523A1 (en) | Sensor for transmission and reception of electromagnetic signals e.g. radar sensor for automobile, with transmission of signals into main radiation region and auxiliary radiation region | |
| DE4017238C2 (en) | Method and device for locating leaks in non-metallic underground pipelines | |
| WO2010112261A1 (en) | Multibeam radar sensor apparatus and method for determining a distance | |
| DE2936168C2 (en) | ||
| DE2434924C3 (en) | Antenna system for a primary and secondary radar with reflector, primary radiator and two auxiliary radiators | |
| DE112011100187T5 (en) | Detecting subsonic cavities through electromagnetic shock waves | |
| EP0730733B1 (en) | Process for detecting totally or partially hidden non-homogeneities by microwave radiation | |
| DE19732044A1 (en) | Distance measurement arrangement for motor vehicles | |
| DE4231882C2 (en) | Process for the detection of a defective pipe | |
| DE102011084592A1 (en) | Antenna unit mounted on extensible mast in submarines, whose one end is provided with flange portion and mechanically stable system for connecting with the mast | |
| DE3129841C2 (en) | "Device for giving an alarm in the event of unauthorized entry into a protection zone along a border line" | |
| DE19521895A1 (en) | Sewer pipe and surrounding region examination method | |
| DE19522464A1 (en) | Radar system for monitoring of fixed area with uneven surface | |
| EP1004895B1 (en) | Method and apparatus for improving the computational efficiency of a rosar-system | |
| DE3315499C2 (en) | ||
| DE102006033961A1 (en) | Method for detecting damage of plastic pipe, involves moving probe through pipe with wires extending helically around pipe, where probe radiates electromagnetic waves, which is coupled inductively in wires and produces measuring signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8120 | Willingness to grant licences paragraph 23 | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER-BENZ AEROSPACE AKTIENGESELLSCHAFT, 80804 M |
|
| 8139 | Disposal/non-payment of the annual fee |