EP2471047A1 - Fernmesssystem und verfahren zum durchführen eines prüfverfahrens an einem entfernten objekt - Google Patents
Fernmesssystem und verfahren zum durchführen eines prüfverfahrens an einem entfernten objektInfo
- Publication number
- EP2471047A1 EP2471047A1 EP10759597A EP10759597A EP2471047A1 EP 2471047 A1 EP2471047 A1 EP 2471047A1 EP 10759597 A EP10759597 A EP 10759597A EP 10759597 A EP10759597 A EP 10759597A EP 2471047 A1 EP2471047 A1 EP 2471047A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- data stream
- operating unit
- switching unit
- measurement data
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
Definitions
- the invention relates to a telemetry system, a method for performing a test method on a remote object and the use of a
- complex testing devices could be implemented, for example, as ultrasound and X-ray systems for examining materials which also provide image information to a user in addition to concrete measurement data.
- Data exchange can be realized so that configuration data or Measurement reports for local evaluation can be prepared and sent to a workplace.
- Another object of the invention is to provide an investigation with the
- the telemetry system has at least one test device, at least one switching unit and at least one operating unit.
- the testing device and the switching unit are coupled together so that the switching unit is enabled to receive a first measurement data stream of the testing device.
- the control unit with the
- Switching unit coupled and adapted to transmit control signals for driving the tester to the switching unit and a second
- the control unit is not located in the same location as the switching unit, but is coupled via an arbitrary type of data connection with the switching unit and serves to place an expert located in the control unit in the
- the switching unit in turn has a data processing unit with which a compression of the first measurement data stream can be performed and the resulting compressed second measurement data stream can be sent to the operating unit.
- the data processing unit is configured to adapt the second measurement data stream to an available data transmission bandwidth, which could be comparatively low, between the switching unit and the operating unit and to perform a quantization, wherein the
- Quantization is controllable by the control signals on the control unit.
- the quantization means in principle the conversion of data in the context of defined gradations, which can be given approximately in bits.
- the first measurement data stream may simultaneously contain, for example, numerical measurements of sensors, video data from a sensor, a camera or other optical recording unit, audio data or screen data of the tester for the information of the expert on the control unit.
- video data of the tester can be compressed and quantized so that they can also be transmitted to the operating unit via slower data connections.
- compression and quantization in particular, in compression and quantization in particular
- the deployment mode could be differentiated according to the following criteria:
- the dynamics of the measurement result is in the foreground, for example because a sensor, such as an ultrasonic sensor, the tester is to be performed on a surface of a vehicle.
- a sensor such as an ultrasonic sensor
- Refresh rate of the image and a low delay time allows.
- Data connection can be sent as a second measurement data stream to a remote expert, the expert can autonomously control this transmission and the quality presented to him.
- the data processing unit is set up to not completely compress image information with a high resolution and to send it to the operating unit, but if necessary controlled by the expert, only considers individual image sections ("regions of interest") and quantizes them accordingly Preferably, the regularly updated image section is then provided with a corresponding marking or approximately remaining parts of the image are shaded.
- the test device has a screen for displaying measured data and image data, wherein the test device is set up to display the screen content first Send measurement data stream from the tester to the exchange unit.
- This has the advantage that for transmission, for example, the so-called Remote Frame Buffer Protocol (RFP) can be used, in which only image deviations are transmitted starting from an initial image.
- This screen content could form the first measurement data stream coming from the tester, which is then further compressed to reduce the required connection speed to the operating unit.
- RFP Remote Frame Buffer Protocol
- the switching unit and the operating unit are connected to one another via an ISDN line. This gives independence from a local one
- the data processing unit is set up to perform a discrete cosine transformation (DCT) of the first measurement data stream and to compress image data from the first measurement data stream with an image compression method.
- DCT discrete cosine transformation
- a time-discrete signal is transformed from the local to the frequency domain, so that image data is put into a form that can be efficiently compressed.
- Compression method are used, which also depending on experience with The inventive telemetry system can be tested and replaced various compression methods to further increase the efficiency of the telemetry system.
- Instructions from the expert on the control unit can receive and then, for example, sensors of the tester can move, move or adjust.
- the communication data stream may be of any type and include audio data, video data or text information. As mentioned, that is
- Communication data stream preferably set up for a bidirectional transmission, so that not only the expert on the control unit can instruct an operator of the tester by voice, text data or a kind of video telephony, but also that it is possible to show the expert by a camera image from the exchange unit, where, for example, an inserted sensor is currently located on the object to be examined, while at the same time the recorded measurement data and a screen content of the testing device are provided by the second measurement data stream at the operating unit.
- the expert could transmit by transmitting a video image to the operator a handle to be performed on the tester or the sensor. Should video data from the control unit to the
- Mess.strom is set up to provide the necessary data bandwidth for the Reduce video transmission. This could also be achieved here by reducing the update rate, ie the images to be transmitted per unit of time, as well as by reducing the image quality.
- the switching unit of the remote measuring system according to the invention can process and mix these data streams to be transmitted particularly advantageous, so that both at the time
- Switching unit as well as the control unit sufficient information to be provided.
- a method for performing a test on a remote object solves the object of the invention. Likewise triggers a use of a
- the inventive remote sensing system for inspecting a vehicle, the object of the invention is a vehicle, the object of the invention.
- Fig. 1 shows a schematic overview of the inventive
- Figs. 2a to 2c show an exemplary view of a to be transmitted
- Fig. 3 shows a schematic block diagram of an inventive
- FIG. 1 shows a remote measuring system 2 which has at least one test device 4, a switching unit 6 with a data processing unit 8 and an operating unit 10.
- the switching unit 6 is connected to the test device 4 via a first data connection 12, which may be implemented, for example, in the form of a conventional connection type such as Ethernet, FireWire, USB or the like.
- the tester 4 is thereby enabled to send a continuous first measurement data stream to the exchange unit 6.
- This first measured data stream could include image data and numerical measured values, wherein the image data may also include measured values in the form of overlays.
- the realized form of the test apparatus 4 is very flexible, practically all test apparatuses available on the free market can be used in the system 2 according to the invention as long as they are able to generate a first measurement data stream.
- This measurement data stream does not necessarily have to be digital in nature, but could also be present in analog form, wherein the switching unit 6 would then have to have a corresponding digitization unit 14.
- the testing device 4 could be implemented as a computing unit on which a specialized test application is installed and in connection with external
- the testing device 4 has, for example, a screen 18, on which measurement results, ultrasound or X-ray images and the like are displayed.
- the tester could also be set up only to prepare data for a screen and provide it to a video adapter for direct connection of an external monitor or to generate a screen display only via a standardized protocol, such as an X Window environment. All kinds of
- Screen displays can accordingly be sent via the first data connection 12 and a corresponding interface 20 to the switching unit 6, where further processing of the represented screen content takes place.
- Switching unit 6 a plurality of different standardized interfaces 20, so that testers 4 different manufacturers are easily connected to the switching unit 6.
- the tester 4 can also provide numerous measured values and digital or analog video data, the latter being digitized accordingly by the digitizing unit 14 and detected as the first measurement data stream. Any digital numbered readings could be included in the first data stream using a multiplexer or other means or separated be treated as an additional measurement data stream transmitted separately from video or image data.
- the first measurement data stream represents a screen content of the tester 4 and is transmitted via the Remote Frame Buffer Protocol (RFP).
- RFP Remote Frame Buffer Protocol
- the data processing unit could compress the received image of the tester 4 with a common or specially adapted for the inventive telemetry system 2 Ko dierver, with about a discrete cosine transform for preparing the image data and then a quantization are performed.
- the operating unit 10 is configured to control signals via the second
- Update rate of the measured data Accordingly, in such applications, the update rate may be high, but the resulting image quality may be quite low. Become the global
- the quantization could be adjusted so that the rate of update of the second measured data stream is reduced, but the quality of the transmitted image signals are increased.
- FIG. 1 Although in Fig. 1 as an object 24, although an aircraft, this is, however, to be considered as an example only and could be any kind of a larger object, whose transport to a remote expert is too complex.
- Fig. 2a the content of the screen 18 of the tester 4 is shown as an example, which is divided here by way of example in four areas.
- status messages can be displayed on an upper side 26, side panels 28 and on the underside 30 control elements can be represented which vary depending on the application
- Functions can fulfill. On the largest part of the screen 18, a video presentation can take place, which shows approximately ultrasound or X-ray images 32 and associated measured value diagrams 34. These representations are merely to understand by example and can be sensed by any other
- FIG. 3 shows a schematic block diagram of a method according to the invention which could essentially comprise the following steps.
- the operating unit 10 could send control signals to the switching unit 6, from where the relevant parts, that is to say the control signals relating to the checking device 4, are sent to the testing device 4. If some of the control signals represent, for example, a request to change a setting of the tester 4, the tester 4 will make this setting 40. Control signals used to change the setting
- Quantization settings or the like used remain in the switching unit 6.
- 42 sends the tester 4, the first measurement data stream to the
- the first measurement data stream could be processed 46 in a subsequent step with the discrete cosine transformation, followed by a quantization 48, which can be controlled by the control signals from the operating unit 10.
- the resulting compressed second measurement data stream is sent to the operating unit 10 50.
- Communication data could be, for example, spoken, textually transmitted or realized with video data instructions for prompting a helping person on site to make adjustments to the tester 4, reposition one or more sensors 16 or the like.
- An expert removed from the object to be tested receives an immediate and qualified impression of the course and results of an inspection or investigation. He can hints e.g. for proper handling or for changing a recording mode or a recording location. Due to the possibility of using ISDN in frequently changing locations of the switching unit and the operating unit, a connection with defined quality of service properties is available
- the remote measuring system 2 according to the invention can operate detached from a local EDP and external network infrastructure, which favors a quick and flexible deployment even with a short-term change of location.
- the remote measuring system 2 according to the invention could be superior to all IP-based solutions, even if the data rate is limited.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23777809P | 2009-08-28 | 2009-08-28 | |
| DE102009039256A DE102009039256A1 (de) | 2009-08-28 | 2009-08-28 | Fernmesssystem und Verfahren zum Durchführen eines Prüfverfahrens an einem entfernten Objekt |
| PCT/EP2010/062382 WO2011023720A1 (de) | 2009-08-28 | 2010-08-25 | Fernmesssystem und verfahren zum durchführen eines prüfverfahrens an einem entfernten objekt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2471047A1 true EP2471047A1 (de) | 2012-07-04 |
Family
ID=43525100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10759597A Ceased EP2471047A1 (de) | 2009-08-28 | 2010-08-25 | Fernmesssystem und verfahren zum durchführen eines prüfverfahrens an einem entfernten objekt |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120179414A1 (de) |
| EP (1) | EP2471047A1 (de) |
| CN (1) | CN102640191B (de) |
| CA (1) | CA2772373A1 (de) |
| DE (1) | DE102009039256A1 (de) |
| WO (1) | WO2011023720A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098912A1 (en) * | 2018-11-13 | 2020-05-22 | Nokia Solutions And Networks Oy | Testing method and arrangement |
| CN116464432B (zh) * | 2022-12-28 | 2026-01-23 | 中国石油天然气集团有限公司 | 一种电磁波随钻测量地面接收系统及方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8170095B2 (en) * | 1998-12-21 | 2012-05-01 | Zin Stai Pte. In, Llc | Faster image processing |
| US6704024B2 (en) * | 2000-08-07 | 2004-03-09 | Zframe, Inc. | Visual content browsing using rasterized representations |
| CN1218537C (zh) * | 2000-10-13 | 2005-09-07 | 帕克斯格里德遥测系统公司 | 将来自车辆的车辆运行数据传递到远程监视接收者的方法 |
| JP2003122426A (ja) * | 2001-10-16 | 2003-04-25 | Keihin Corp | リモートメンテナンスシステム |
| DE10153151A1 (de) * | 2001-10-27 | 2003-05-15 | Airbus Gmbh | Diagnosesystem sowie Diagnoseverfahren zur Unterstützung der Flugzeugwartung |
| US20050085964A1 (en) * | 2003-10-21 | 2005-04-21 | Knapp Benjamin P. | Network coupled diagnosis and maintenance system |
| KR100596945B1 (ko) * | 2003-10-30 | 2006-07-04 | (주)씨앤에스 테크놀로지 | 영상 송수신 대역폭 및 화질 조절기능을 갖는 아이피 영상단말기 및 이의 제어방법 |
| GB0325859D0 (en) * | 2003-11-05 | 2003-12-10 | Ricardo Uk Ltd | Method of transmitting monitoring information |
| US7071852B1 (en) * | 2004-02-13 | 2006-07-04 | Samplify Systems Llc | Enhanced test and measurement instruments using compression and decompression |
| US20060167638A1 (en) * | 2004-11-04 | 2006-07-27 | Murphy Jonathan D M | Data collector with wireless server connection |
| US20060106508A1 (en) * | 2004-11-12 | 2006-05-18 | Spx Corporation | Remote display of diagnostic data apparatus and method |
| JP4116006B2 (ja) * | 2005-03-04 | 2008-07-09 | 株式会社東芝 | 画面転送装置、画面転送システム、画面転送方法、およびプログラム |
| US8560753B1 (en) * | 2005-03-30 | 2013-10-15 | Teradici Corporation | Method and apparatus for remote input/output in a computer system |
| US20090195655A1 (en) * | 2007-05-16 | 2009-08-06 | Suprabhat Pandey | Remote control video surveillance apparatus with wireless communication |
-
2009
- 2009-08-28 DE DE102009039256A patent/DE102009039256A1/de not_active Ceased
-
2010
- 2010-08-25 CN CN201080038439.3A patent/CN102640191B/zh not_active Expired - Fee Related
- 2010-08-25 CA CA2772373A patent/CA2772373A1/en not_active Abandoned
- 2010-08-25 WO PCT/EP2010/062382 patent/WO2011023720A1/de not_active Ceased
- 2010-08-25 EP EP10759597A patent/EP2471047A1/de not_active Ceased
-
2012
- 2012-02-24 US US13/404,284 patent/US20120179414A1/en not_active Abandoned
Non-Patent Citations (2)
| Title |
|---|
| See also references of WO2011023720A1 * |
| VIRTANEN K ET AL: "A Current-Mode ADC with Adaptive Quantization", CONFERENCE PROCEEDINGS / IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) : MAY 23 - 26, 2005, INTERNATIONAL CONFERENCE CENTER, KOBE, JAPAN, IEEE SERVICE CENTER, PISCATAWAY, NJ, 23 May 2005 (2005-05-23), pages 3115 - 3118, XP010816252, ISBN: 978-0-7803-8834-5, DOI: 10.1109/ISCAS.2005.1465287 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102640191A (zh) | 2012-08-15 |
| DE102009039256A1 (de) | 2011-03-03 |
| US20120179414A1 (en) | 2012-07-12 |
| CA2772373A1 (en) | 2011-03-03 |
| WO2011023720A1 (de) | 2011-03-03 |
| CN102640191B (zh) | 2015-05-06 |
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