WO2014114296A1 - Wireless identification of a wind turbine - Google Patents

Wireless identification of a wind turbine Download PDF

Info

Publication number
WO2014114296A1
WO2014114296A1 PCT/DK2014/000003 DK2014000003W WO2014114296A1 WO 2014114296 A1 WO2014114296 A1 WO 2014114296A1 DK 2014000003 W DK2014000003 W DK 2014000003W WO 2014114296 A1 WO2014114296 A1 WO 2014114296A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
identification tag
communication network
handheld device
data communication
Prior art date
Application number
PCT/DK2014/000003
Other languages
French (fr)
Inventor
Rasmus Nielsen
Kim HYLDGGARD
Original Assignee
Kk-Electronic A/S
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kk-Electronic A/S filed Critical Kk-Electronic A/S
Publication of WO2014114296A1 publication Critical patent/WO2014114296A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates in general to connecting a handheld device to a member of a data communication network of a wind turbine.
  • a technician at the site of a wind turbine face a complex energy producing facility and even for the most experienced technician it may be difficult to be up to date with information of version, maintenance records, etc. for all wind turbine components and network configurations.
  • EP2177753 describes a wireless information system for wind turbine components. Attached to a wind turbine component is a radio-frequency identification (RFID) tag comprising component data such as commissioning and maintenance information which is accessible upon scanning the RFID tag by a handheld device.
  • RFID radio-frequency identification
  • US patent application US 2012/0243518 discloses a communication system and method.
  • the communication system includes a data communication network connecting wind turbines and wireless access points.
  • the communication method includes wirelessly communication between a mobile communication device and the wireless access point.
  • the design of the network is state of the art in that the mobile device can access the network via the wireless access point.
  • the access point communicates with the mobile device via electromagnetic waves, the mobile device is defined as e.g. telephone, laptop, etc.
  • This US patent application teaches one way of connecting a handheld device to a network of a wind turbine.
  • the invention relates a system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine, the system comprising a passive identification tag, comprising information for identifying said predetermined member of said data communication network and a handheld device comprising a data processor and an identification tag scanner, wherein said handheld device is configured for scanning said identification tag by means of said identification tag scanner to retrieve said information from said identification tag, and wherein said handheld device is further configured to process said information by means of said data processor, and wherein the result of said data processing is information enabling said handheld device to identify and directly access said predetermined member of said data communication network.
  • a handheld device should be understood as a tablet, laptop, smartphone and the like suitable for use when performing service or on site control of a wind turbine.
  • a data communication network should be understood as either a wired or wireless data communication network.
  • Such data communication network could be one or more internal data communication networks which may be used by the wind turbine controller to control the operation of the wind turbine.
  • a data communication network could be an external data communication network connecting the wind turbine to the internet enabling an operator to access to the wind turbine.
  • An external data communication network may also be the network of a wind power park comprising a plurality of wind turbines used in controlling the individual wind turbines of a wind power park from a park controller according to a park control strategy. Hence access to the internet from the wind turbine may be obtained through an external data communication network of the data communication network.
  • a passive identification tag should be understood as a unit comprising information which when scanned is transferred to the scanning device which in this document is referred to a handheld device.
  • Technologies suitable are often referred to as mobile tagging technology which almost always comprises some kind of two-dimensional code. None limiting examples could be barcodes and Quick Response codes (QR- code).
  • Other suitable technologies could include use of magnetic strips and smart cards however these technologies does not benefit to the same extent as e.g. the QR-code from the advantages obtained by being able to print the identification tag. These advantages include quick, easy and flexible creation and manufacturing (i.e. printing) and low price.
  • passive identification tag also referred to simply as identification tag
  • identification tag an identification tag which does not transmit information to the scanning device.
  • active tags such as Radio Frequency Identification (RFID) tags which either continuously transmits or upon activation from a RFID receiver transmits information.
  • RFID Radio Frequency Identification
  • Relevant information may be all kind of information which a person on site could be in need of.
  • the relevant information may depend on the type of data communication network to be accessed and could be a Service Set Identification (SSID) of a wireless network, IP address, Uniform Resource Locator (URL) e.g. to external recourse, name of the wind turbine, last software update, last service visit, etc.
  • SSID Service Set Identification
  • URL Uniform Resource Locator
  • An identification tag scanner should be understood as a piece of hardware (build in or plug and play) which is able to scan the identification tag i.e. these should be chosen to match each other. Therefore if the identification tag is a QR code, then the automatic identification scanner could be a camera. By means of the camera the QR-code is pictured and decoded by the data processor of the handheld device.
  • the first member of the data communication network a handheld device is typically facing when connecting to the data communication network is often an access point.
  • An access point should be understood as a location in the data communication network of a wind turbine through which access to one or more predefined data communications networks behind the access point can be obtained.
  • An access point could be understood as a login page e.g. at a switch through which it is possible to access the data communication network connected to the switch or simply a point of connection to the data communication network.
  • wind turbine comprising more than one data communication network it might be advantageous to have an identification tag for each of the networks in order to facilitate easy login to the desired network.
  • Connecting a handheld device to a data communication network by means of an identification tag is very advantageous in that manually introduced errors are eliminated such as typing errors in the web- or IP address.
  • An example of when such manual error could be introduced is when a person on site such as a service person via the display of the handheld device is to access the control system of a wind turbine in a wind power park. If the service person e.g. enters the wrong network address or wind turbine name by mistake there is a risk of connecting his handheld device to another wind turbine in the park than the one in which he is present.
  • Another advantage by the present invention is that the service person does not need to remember, such network address since it is given to him by simply by scanning the identification tag.
  • the identification tag is guiding to data or access point at a predetermined location.
  • the access point or data may at any time by updated without updating the identification tag.
  • the identification tag is always pointing towards e.g. the location e.g. via an IP address to the most updated information available even after several years.
  • the predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine.
  • a controller could be the main wind turbine controller, converter controller, pitch controller, etc.
  • Access to a controller could be a browser or application displaying a login window on the handheld device through which a person onsite with valid username and password may login or access the controller in order to manually control the wind turbine, change parameters, update software, etc. Hence by scanning the identification tag access to any accessible controller may be facilitated via the data communication network.
  • the predefined data source may be a data storage comprising operational data logged by the wind turbine for a period of time back in time. Unless the identification tag comprise login information the user of the handheld is guided to a login page of the data source.
  • the predefined data source may alternatively be a web server comprising the data.
  • a predefined data source located external to said wind turbine may be a server located at the owner or operator of the wind turbine.
  • server may comprise information of the performance of the wind turbine, control strategies and additional information such as manuals, instructions, maintenance planes, data sheets, parts list, etc.
  • the passive identification tag is a mobile tag, preferably a Q -code or a barcode.
  • Mobile tagging should be understood as the connecting content of a date communication network to an identification tag. This content or data is then provided from the identification tag for display on handheld device upon scanning. Content here should also include information of location of elements or members of the data communication network such as URL for information addressed and accessible through the data communication network.
  • mobile tags or identification tags are encoded in a two-dimensional form which can be scanned by a camera of the hand held device.
  • Mobile tagging codes includes: QR-codes, barcodes, DataMatrix, Cool-Data-Matrix, Aztec, Upcode, trillcode, Quickmark, Shorcode, mcode, Beetagg, etc. beside the mentioned different manufactures of operation systems for handheld devices have developed two-dimensional mobile tags as alternative to the above mentioned.
  • the passive identification tag is printed preferably a printed sticker.
  • Identification tags such as a QR-code is easy to create by means of a QR-code generator of which several are available free of use on the internet. This makes the use of identification tags both inexpensive and fast to create and use.
  • the passive identification tag requires line of sight to the passive identification tag while scanning. Based on the passive nature of a printed two-dimensional identification tag it requires that the identification tag scanner is in line of sight of the identification tag to be able to scan. This also has , the advantage that the person scanning the identification tag is sure which identification tag is scanned if more than one is located close to each other. This is in contrary to the situation with active tags such as RFID are used. Then it is not necessarily easy to define from which RFID tag information is received if more than one RID tag is within range of the handheld device. According to an embodiment for the invention said identification tag further provide login information enabling automatic login to said predefined member from said handheld device.
  • Login information may be username and password which enables the user of the handheld device to access network and controllers according to the rights assigned to the login information of the identification tag.
  • the login information of an identification tags located at the wind turbine provides a guest login to the user. Guest rights may be enable the user to access the internet via an external data communication network, monitor operation or error log of the wind turbine, etc.
  • Such default access rights are advantageous in that service person onsite missing login information is able to contact e.g. a service center via the external data communication network and obtain necessary information to carry out the service.
  • said identification tag is located at said wind turbine.
  • the location of said identification tag could either be inside or outside the tower or nacelle of the wind turbine.
  • the identification tag is of a type or located outside the tower or nacelle of an offshore wind turbine the data communication network of the wind turbine may be accessible from a boat or helicopter.
  • said identification tag further provides access from said handheld device to information relevant to the location of said identification tag wherein the location of said identification tag is a wind turbine component.
  • Wind turbine components should by understood as every part of which the wind turbine is built preferably the members of the data communication network. The latter typically allows access to control the wind turbine or access data logs. On the other hand information of wind turbine components such as panels, motors, sensors, entrance to tower, entrance to nacelle, in nacelle, entrance to hub, in the hub, at blade, etc. could also be relevant to access.
  • the location may be inside / outside the wind turbine, close to the entrance to the tower, nacelle, hub or blade, at wind turbine components such as a panel, gear, generator, converter, etc. Of course it is possible to place as many identification tags as necessary in or at the wind turbine.
  • Information of the location of the identification tag could be data sheet, service checklist, logout checklist, guidance e.g. multimedia service guide, manuals, instructions, parts list, versions of component or software, data log, network location, login information, measurements, time stamps since last use of the wind turbine component and other relevant information related to the wind turbine.
  • multimedia service guide e.g. multimedia service guide, manuals, instructions, parts list, versions of component or software, data log, network location, login information, measurements, time stamps since last use of the wind turbine component and other relevant information related to the wind turbine.
  • the user of the handheld device is guided to a data source on the (internal or external) data communication network providing the relevant information.
  • the information provided by or which the identification tag guides to could be a video instruction on how the detach / assemble, guide to perform service, component information, etc.
  • Such information is preferable located on a data source accessible from the (internal or external) data communication network. This is because the size of such information is typically too large to be embedded in the identification tag itself.
  • the information provided by or which the identification tag guides to could be a checklist which the person leaving the wind turbine should remember before leaving.
  • checklist could include change mode of wind turbine controller, remember tool, close panels, lock door, etc.
  • said identification tag is located on a card
  • a card should be understood as a guest card, a (printed) service instruction, personal identification card, handout, etc.
  • the information obtained from the identification tag may enable the cardholder to access a guest network, monitor at least part of the operation / operational data of the wind turbine, code to door in tower, etc.
  • the information obtained from the identification tag may enable the cardholder access to the network, controllers and information necessary to perform the service. It is advantageous to be able to assign personal login information complying with the seniority of a person.
  • said predetermined data communication network is an external communication network external to said wind turbine and wherein said identification tag further provide information enabling access to the internet from said handheld device via said external data communication network. It is advantageous to be able to access the internet from a wind turbine without any addresses, codes, etc. simply by scanning an identification tag.
  • the external communication network could be the communication network of a wind power park. Hence the data network of a wind power park or of the wind turbine may be used as access to the internet.
  • the invention relates to a wind turbine comprising a system for connecting a handheld device to a predetermined member of a data communication network of said wind turbine according to any of the claims 1-10.
  • the invention relates to a method for accessing a predetermined member of a data communication network of a wind turbine by means of a handheld device, the method comprising the steps of: creating a passive identification tag comprising information of at least a network address of said predetermined member, printing said passive identification tag, bringing said passive identification tag to said wind turbine, preferably attach said identification tag nearby or at said predetermined member, by means of an identification tag scanner comprised by said handheld device scanning said passive identification tag for retrieving said information, by means of a data processor of said handheld device process said information scanned from said passive identification tag, and based on said processing of said scanned information open a user interface in a display of said handheld device providing access to said predetermined member of said wind turbine.
  • An example of a user interface could be user interfaces of a server or of a wind turbine controller.
  • the identification tag may open on the display of the handheld device the front page of the controller from where it is possible to get information of e.g. actual performance, wind speed and direction, etc. If the identification tag further comprise login information scanning the identification tag may open on the display of the handheld device another front page from where the user of the handheld device are able to perform software updates, change settings or parameters, read data, etc.
  • said predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine.
  • the identification tag is created by a mobile tag generator.
  • the step of scanning requires line of sight between the identification tag scanner and the identification tag.
  • the passive identification tag is printed preferably on sticky paper. More over the invention relates to the use of a passive information tag for accessing information related to a wind turbine by means of a system as describe in claims 1- 11 or by a method as described in claims 12-16. Figures
  • FIG. 1 illustrates a system according to an embodiment of the invention.
  • Fig. 1 illustrates a wind turbine 1 comprising blades 2, hub 3, nacelle 4, tower 5, controllers 6, data communication network 7 and additional wind turbine components 8.
  • the controllers 6 include among other yaw controller 6a controlling one or more yaw motors 8a, converter controller 6b controlling the power converter 8b and pitch controller 8c controlling one or more pitch motors 8c. Further it should be noted that a main wind turbine controller 6d is always present.
  • the mentioned wind turbine components including controllers are only for illustrative purpose and it should be noted that a wind turbine 1 may comprise further components than illustrated.
  • the data communication network 7 of a wind turbine comprise at least an internal data communication network 7a through which the wind turbine controller 6d is communicating (often bidirectional) with the other controllers 6a-6c of the wind turbine.
  • the data communication network 7 of the illustrated wind turbine 1 further comprises an external data communication network 7b which connects the wind turbine 1 to other wind turbines and park controller(s) of a wind power park. From the data communication network 7b only difference of the wind turbines connected hereto may be a digit or two in the IP addresses.
  • the data communication network 7 of the illustrated wind turbine 1 comprise an external data communication network 7e connecting the wind turbine 1 to the internet 9 and thereby e.g. to the operator of the wind turbine 1, an internal wireless network 7c and an external wireless network 7d.
  • the individual data communication networks 7a-7e of the data communication network 7 are accessible from a switch 11.
  • the wind turbine 1 is further equipped with identification tags 12 according to the invention.
  • the identification tags 12 comprise information which is accessible from a handheld device 13 when the identification tag 12 is scanned by an identification tag scanner 14 of the handheld device 13. It should be noted that every component (2, 3, 4, 5, 6, 7, 8) of the wind turbine 1 may in principle be equipped with an identification tag 12.
  • the identification tag 12 is not able to comprise large amounts of data hence if the information intended to be provided with a specific identification tag 12 is larger than e.g. a few hundred bytes the identification tag 12 is often referring or guiding to a data source / data storage comprising such information.
  • the retrieved information is processed by a standard data processor 15 and e.g. also with by means of additional data processing applications located at a data storage 17 before it is displayed on a display 16.
  • the information retrieved from the identification tags 12 may be displayed indirectly in that the information may be some kind of network identification such as a name (identification) of a data communication network 7 or an IP address of a member of the data network such as a controller 6.
  • the identification tag 12a is created to provide details such as SSID of a wireless network, virtual LAN identification, login information, etc. enabling the handheld device 13 to access the internal data communication network 7a.
  • the access may be obtained via a network member such as an access point such as a switch 11.
  • a network member such as an access point such as a switch 11.
  • the handheld device 13 is automatically logged on to the internal data communication network 7a.
  • the user is asked to choose a data communication network 7 and upon scanning the identification tag 12 log on to the chosen network.
  • Logging on a data communication network 7 or controller 6 could be done in many ways no matter if the handheld device is connected to the switch 11 wireless or wired.
  • the following embodiment of the invention is described with reference to a handheld device which is connected to the switch 11 by means of a wired connection.
  • Using wired connections may be advantages in that electric generated noise may disturb the wireless network.
  • the user of a handheld device such as a laptop is plugging his wired handheld device to the switch 11 of the wind turbine 1 he may then scan the identification tag and get direct access to the wind turbine controller with default rights.
  • he is guided to a login page where he can login with his personal username and pass word and thereby obtain the rights assigned to him.
  • the automatic information 12a is further created to provide details such as IP address or URL of the network member i.e. the wind turbine controller 6d.
  • the handheld device 13 is automatically logged on to the internal data communication network 7a e.g. connect to an access point such as switch 11.
  • the user is asked to enter usemame and password to access additional members behind the access point such as the wind turbine controller 6d in order to manually take over control of the wind turbine 1, update software, monitor operation data, retrieve logged data, etc.
  • the automatic information 12a is further created to provide details such as user name and password of the wind turbine controller 6d.
  • the handheld device 13 is automatically logged on to the wind turbine controller 6d. Then the user may take over control of the wind turbine 1, update software, monitor operation data, retrieve logged data, etc.
  • Often only limited rights are assigned to a user logging in via default login information on an automatically information unit 12a located at the wind turbine 1 to ensure that no uneducated person is accessing the wind turbine controller 6d.
  • expert user may bring their own personal identification tag 12 assigning rights after login according the skills or job the expert has to carry out at the wind turbine 1.
  • Such personal identification tag 12 may be created from visit to visit at the wind turbine 1.
  • the default login information obtained from the identification tag 12d located in the nacelle 4 may assign more rights to the user than the identification tag 12a located at the bottom of the tower 5. This is because for safety reasons only people with special education is allowed to access the nacelle hence these persons may because of that be defined as experts. Further the default login information could be used by a visitor such as a service person to get in contact with colleagues at the home office to help him out if the service persons personal login does not provide necessary rights to perform the service or the service person is for some reason not registered as user with rights to access the wind turbine controller.
  • An identification tag 12 located e.g. at the gear could upon scanning provide access to an internal data source (not illustrated) or an external data source 10. Access to the external data source 10 could be obtained via the data communication network 7 and the internet 9.
  • An example of the access could be information of the path on which information related to the gear is stored on the external data source 10. Such information could be guide to lubrication, detach, assemble, perform different level of service, list of earlier service, etc.
  • the information could be given in various forms e.g. as written, recitation, video or any combination thereof where the service person is instructed step by step.
  • the external data source 10 could be located on one or more corporate networks e.g. of the owner, manufacture, service provider, etc. and thereby large amount of information is accessible upon scanning an identification tag 12.
  • An identification tag 12 located at the entrance / exit of the tower could upon scanning provide access to a check list located on an internal or external data source as described above.
  • An entrance identification tag 12 could provide access to a check list listing things a visitor such as a service person should be aware of or remember to do upon entering the tower.
  • an exit identification tag 12 could give access to a check list of things to remember before leaving the tower.
  • An identification tag 12 could be located on a specific circuit board or panel which upon scanning created a communication line to a hotline / helpdesk.
  • An identification tag 12 is created with desired information by methods known by the skilled person e.g. my mobile tag generators / QR-code generators. Such information could be a network address of a predetermined wind turbine controller
  • the identification tag may be created and emailed to the service technician who only needs a printer to print the identification tag and bring it to the wind turbine to use it.
  • the service technician could from his hotel room scan the identification tag and log on to the predefined member of the data communication network.
  • the location of the identification tag 12 is principle not relevant but of cause it is preferred that if the information kept by an identification tag 12 is related to a main wind turbine controller 6d, this identification tag 12 is located on or close to the this controller 6d. In this way a person scanning the identification tag 12 have easy access to the information from his handheld device 13. Hence according to the invention the identification tag 12 ensures that a user at a wind turbine 1 is logging automatically on to the right data communication network
  • an identification tag reference is made to a passive identification as describe in the claims. Further when reference is made to components of the wind turbine (2, 3, 4, 5, 6, 7, 8, 10, 11) reference is made to a member of the data communication network as described in the claims.

Abstract

A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine, the system comprising a passive identification tag, comprising information for identifying said predetermined member of said data communication network and a handheld device comprising a data processor and an identification tag scanner, wherein said handheld device is configured for scanning said identification tag by means of said identification tag scanner to retrieve said information from said identification tag, and wherein said handheld device is further configured to process said information by means of said data processor, and wherein the result of said data processing is information enabling said handheld device to identify and directly access said predetermined member of said data communication network.

Description

WIRELESS IDENTIFICATION OF A WIND TURBINE Field of the invention
The invention relates in general to connecting a handheld device to a member of a data communication network of a wind turbine.
Background of the invention
A technician at the site of a wind turbine face a complex energy producing facility and even for the most experienced technician it may be difficult to be up to date with information of version, maintenance records, etc. for all wind turbine components and network configurations.
European patent application with publication number EP2177753 describes a wireless information system for wind turbine components. Attached to a wind turbine component is a radio-frequency identification (RFID) tag comprising component data such as commissioning and maintenance information which is accessible upon scanning the RFID tag by a handheld device. Hence EP2177753 solves the problem a technician may face when servicing a component and need of information of that specific component.
US patent application US 2012/0243518 discloses a communication system and method. The communication system includes a data communication network connecting wind turbines and wireless access points. The communication method includes wirelessly communication between a mobile communication device and the wireless access point. The design of the network is state of the art in that the mobile device can access the network via the wireless access point. The access point communicates with the mobile device via electromagnetic waves, the mobile device is defined as e.g. telephone, laptop, etc. This US patent application teaches one way of connecting a handheld device to a network of a wind turbine.
Brief description of the invention
It is an object of the present invention to provide a system for easy identification of and access to a member of a data communication of a wind turbine.
The invention relates a system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine, the system comprising a passive identification tag, comprising information for identifying said predetermined member of said data communication network and a handheld device comprising a data processor and an identification tag scanner, wherein said handheld device is configured for scanning said identification tag by means of said identification tag scanner to retrieve said information from said identification tag, and wherein said handheld device is further configured to process said information by means of said data processor, and wherein the result of said data processing is information enabling said handheld device to identify and directly access said predetermined member of said data communication network. A handheld device should be understood as a tablet, laptop, smartphone and the like suitable for use when performing service or on site control of a wind turbine.
Often there is more than one data communication network in a wind turbine. A data communication network should be understood as either a wired or wireless data communication network. Such data communication network could be one or more internal data communication networks which may be used by the wind turbine controller to control the operation of the wind turbine. Further a data communication network could be an external data communication network connecting the wind turbine to the internet enabling an operator to access to the wind turbine. An external data communication network may also be the network of a wind power park comprising a plurality of wind turbines used in controlling the individual wind turbines of a wind power park from a park controller according to a park control strategy. Hence access to the internet from the wind turbine may be obtained through an external data communication network of the data communication network.
A passive identification tag should be understood as a unit comprising information which when scanned is transferred to the scanning device which in this document is referred to a handheld device. Technologies suitable are often referred to as mobile tagging technology which almost always comprises some kind of two-dimensional code. None limiting examples could be barcodes and Quick Response codes (QR- code). Other suitable technologies could include use of magnetic strips and smart cards however these technologies does not benefit to the same extent as e.g. the QR-code from the advantages obtained by being able to print the identification tag. These advantages include quick, easy and flexible creation and manufacturing (i.e. printing) and low price.
By passive identification tag (also referred to simply as identification tag) should be understood an identification tag which does not transmit information to the scanning device. This is in contrary to active tags such as Radio Frequency Identification (RFID) tags which either continuously transmits or upon activation from a RFID receiver transmits information. Hence the fact that the passive identification tag preferably is printed makes it by nature passive.
Relevant information may be all kind of information which a person on site could be in need of. The relevant information may depend on the type of data communication network to be accessed and could be a Service Set Identification (SSID) of a wireless network, IP address, Uniform Resource Locator (URL) e.g. to external recourse, name of the wind turbine, last software update, last service visit, etc.
An identification tag scanner should be understood as a piece of hardware (build in or plug and play) which is able to scan the identification tag i.e. these should be chosen to match each other. Therefore if the identification tag is a QR code, then the automatic identification scanner could be a camera. By means of the camera the QR-code is pictured and decoded by the data processor of the handheld device. The first member of the data communication network a handheld device is typically facing when connecting to the data communication network is often an access point. An access point should be understood as a location in the data communication network of a wind turbine through which access to one or more predefined data communications networks behind the access point can be obtained. An access point could be understood as a login page e.g. at a switch through which it is possible to access the data communication network connected to the switch or simply a point of connection to the data communication network.
If the wind turbine comprising more than one data communication network it might be advantageous to have an identification tag for each of the networks in order to facilitate easy login to the desired network.
Connecting a handheld device to a data communication network by means of an identification tag is very advantageous in that manually introduced errors are eliminated such as typing errors in the web- or IP address. An example of when such manual error could be introduced is when a person on site such as a service person via the display of the handheld device is to access the control system of a wind turbine in a wind power park. If the service person e.g. enters the wrong network address or wind turbine name by mistake there is a risk of connecting his handheld device to another wind turbine in the park than the one in which he is present.
Another advantage by the present invention is that the service person does not need to remember, such network address since it is given to him by simply by scanning the identification tag.
Another advantage by the present invention is that the identification tag is guiding to data or access point at a predetermined location. The access point or data may at any time by updated without updating the identification tag. This is advantageous in that the identification tag is always pointing towards e.g. the location e.g. via an IP address to the most updated information available even after several years.
According to an embodiment of the invention the predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine. A controller could be the main wind turbine controller, converter controller, pitch controller, etc. Access to a controller could be a browser or application displaying a login window on the handheld device through which a person onsite with valid username and password may login or access the controller in order to manually control the wind turbine, change parameters, update software, etc. Hence by scanning the identification tag access to any accessible controller may be facilitated via the data communication network. If the wind turbine comprises more than one controller it might be advantageous to have an identification tag for each of the controllers which is relevant to access from a handheld device in order to ease login. The predefined data source may be a data storage comprising operational data logged by the wind turbine for a period of time back in time. Unless the identification tag comprise login information the user of the handheld is guided to a login page of the data source. The predefined data source may alternatively be a web server comprising the data.
A predefined data source located external to said wind turbine may be a server located at the owner or operator of the wind turbine. Such server may comprise information of the performance of the wind turbine, control strategies and additional information such as manuals, instructions, maintenance planes, data sheets, parts list, etc.
Sometimes before a person is going onsite e.g. to perform service on a wind turbine the person does not know which information could be relevant to the service which is to be performed or other unexpected things are happening. In such cases a person onsite only need to scan an identification tag to be guided to the server or even directly to the relevant information as described below.
Hence access may be facilitated to all kind of information accessible on a corporate network which is very advantageous for service personal servicing the wind turbine onsite needing information.
According to an embodiment of the invention the passive identification tag is a mobile tag, preferably a Q -code or a barcode. Mobile tagging should be understood as the connecting content of a date communication network to an identification tag. This content or data is then provided from the identification tag for display on handheld device upon scanning. Content here should also include information of location of elements or members of the data communication network such as URL for information addressed and accessible through the data communication network. Typically mobile tags or identification tags are encoded in a two-dimensional form which can be scanned by a camera of the hand held device. Mobile tagging codes includes: QR-codes, barcodes, DataMatrix, Cool-Data-Matrix, Aztec, Upcode, trillcode, Quickmark, Shorcode, mcode, Beetagg, etc. beside the mentioned different manufactures of operation systems for handheld devices have developed two-dimensional mobile tags as alternative to the above mentioned.
According to an embodiment of the invention the passive identification tag is printed preferably a printed sticker.
It is very advantageous to be able to print the identification tags in that this makes the use very flexible. Hence when created an identification tag is very it is fast to realise physical in that it only requires a common printer. If the identification tag is printed on sticky paper it is further more very easy to mount at any desired location.
Identification tags such as a QR-code is easy to create by means of a QR-code generator of which several are available free of use on the internet. This makes the use of identification tags both inexpensive and fast to create and use.
According to an embodiment of the invention the passive identification tag requires line of sight to the passive identification tag while scanning. Based on the passive nature of a printed two-dimensional identification tag it requires that the identification tag scanner is in line of sight of the identification tag to be able to scan. This also has , the advantage that the person scanning the identification tag is sure which identification tag is scanned if more than one is located close to each other. This is in contrary to the situation with active tags such as RFID are used. Then it is not necessarily easy to define from which RFID tag information is received if more than one RID tag is within range of the handheld device. According to an embodiment for the invention said identification tag further provide login information enabling automatic login to said predefined member from said handheld device.
Login information may be username and password which enables the user of the handheld device to access network and controllers according to the rights assigned to the login information of the identification tag. Preferably the login information of an identification tags located at the wind turbine provides a guest login to the user. Guest rights may be enable the user to access the internet via an external data communication network, monitor operation or error log of the wind turbine, etc.
Such default access rights are advantageous in that service person onsite missing login information is able to contact e.g. a service center via the external data communication network and obtain necessary information to carry out the service. According to an embodiment for the invention said identification tag is located at said wind turbine.
The location of said identification tag could either be inside or outside the tower or nacelle of the wind turbine. In case the identification tag is of a type or located outside the tower or nacelle of an offshore wind turbine the data communication network of the wind turbine may be accessible from a boat or helicopter.
According to an embodiment for the invention said identification tag further provides access from said handheld device to information relevant to the location of said identification tag wherein the location of said identification tag is a wind turbine component.
Wind turbine components should by understood as every part of which the wind turbine is built preferably the members of the data communication network. The latter typically allows access to control the wind turbine or access data logs. On the other hand information of wind turbine components such as panels, motors, sensors, entrance to tower, entrance to nacelle, in nacelle, entrance to hub, in the hub, at blade, etc. could also be relevant to access.
The location may be inside / outside the wind turbine, close to the entrance to the tower, nacelle, hub or blade, at wind turbine components such as a panel, gear, generator, converter, etc. Of course it is possible to place as many identification tags as necessary in or at the wind turbine.
Information of the location of the identification tag could be data sheet, service checklist, logout checklist, guidance e.g. multimedia service guide, manuals, instructions, parts list, versions of component or software, data log, network location, login information, measurements, time stamps since last use of the wind turbine component and other relevant information related to the wind turbine.
By scanning an identification tag the user of the handheld device is guided to a data source on the (internal or external) data communication network providing the relevant information. In case the location is a wind turbine component the information provided by or which the identification tag guides to could be a video instruction on how the detach / assemble, guide to perform service, component information, etc. Such information is preferable located on a data source accessible from the (internal or external) data communication network. This is because the size of such information is typically too large to be embedded in the identification tag itself.
In case the location is at the entrance / exit to the tower the information provided by or which the identification tag guides to could be a checklist which the person leaving the wind turbine should remember before leaving. Such checklist could include change mode of wind turbine controller, remember tool, close panels, lock door, etc. According to an embodiment for the invention said identification tag is located on a card
A card should be understood as a guest card, a (printed) service instruction, personal identification card, handout, etc.
In case the identification tag is located on a guest card the information obtained from the identification tag may enable the cardholder to access a guest network, monitor at least part of the operation / operational data of the wind turbine, code to door in tower, etc.
In case the identification tag is part of a printed service instruction the information obtained from the identification tag may enable the cardholder access to the network, controllers and information necessary to perform the service. It is advantageous to be able to assign personal login information complying with the seniority of a person.
According to an embodiment for the invention said predetermined data communication network is an external communication network external to said wind turbine and wherein said identification tag further provide information enabling access to the internet from said handheld device via said external data communication network. It is advantageous to be able to access the internet from a wind turbine without any addresses, codes, etc. simply by scanning an identification tag. The external communication network could be the communication network of a wind power park. Hence the data network of a wind power park or of the wind turbine may be used as access to the internet.
Moreover the invention relates to a wind turbine comprising a system for connecting a handheld device to a predetermined member of a data communication network of said wind turbine according to any of the claims 1-10. Moreover the invention relates to a method for accessing a predetermined member of a data communication network of a wind turbine by means of a handheld device, the method comprising the steps of: creating a passive identification tag comprising information of at least a network address of said predetermined member, printing said passive identification tag, bringing said passive identification tag to said wind turbine, preferably attach said identification tag nearby or at said predetermined member, by means of an identification tag scanner comprised by said handheld device scanning said passive identification tag for retrieving said information, by means of a data processor of said handheld device process said information scanned from said passive identification tag, and based on said processing of said scanned information open a user interface in a display of said handheld device providing access to said predetermined member of said wind turbine.
An example of a user interface could be user interfaces of a server or of a wind turbine controller. The identification tag may open on the display of the handheld device the front page of the controller from where it is possible to get information of e.g. actual performance, wind speed and direction, etc. If the identification tag further comprise login information scanning the identification tag may open on the display of the handheld device another front page from where the user of the handheld device are able to perform software updates, change settings or parameters, read data, etc.
According to an embodiment of the inventive method said predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine.
According to an embodiment of the inventive method the identification tag is created by a mobile tag generator.
As mentioned such mobile tag generators are available free of charge at the internet hence known to the skilled person. According to an embodiment of the inventive method the step of scanning requires line of sight between the identification tag scanner and the identification tag.
According to an embodiment of the inventive method the passive identification tag is printed preferably on sticky paper. More over the invention relates to the use of a passive information tag for accessing information related to a wind turbine by means of a system as describe in claims 1- 11 or by a method as described in claims 12-16. Figures
An exemplary embodiment of the invention will be described in more detail in the following with reference to figure 1 which illustrates a system according to an embodiment of the invention, Detailed description of the invention
Figure 1 illustrates a system according to an embodiment of the invention. Fig. 1 illustrates a wind turbine 1 comprising blades 2, hub 3, nacelle 4, tower 5, controllers 6, data communication network 7 and additional wind turbine components 8.
The controllers 6 include among other yaw controller 6a controlling one or more yaw motors 8a, converter controller 6b controlling the power converter 8b and pitch controller 8c controlling one or more pitch motors 8c. Further it should be noted that a main wind turbine controller 6d is always present.
The mentioned wind turbine components including controllers are only for illustrative purpose and it should be noted that a wind turbine 1 may comprise further components than illustrated. The data communication network 7 of a wind turbine comprise at least an internal data communication network 7a through which the wind turbine controller 6d is communicating (often bidirectional) with the other controllers 6a-6c of the wind turbine. The data communication network 7 of the illustrated wind turbine 1 further comprises an external data communication network 7b which connects the wind turbine 1 to other wind turbines and park controller(s) of a wind power park. From the data communication network 7b only difference of the wind turbines connected hereto may be a digit or two in the IP addresses.
Furthermore the data communication network 7 of the illustrated wind turbine 1 comprise an external data communication network 7e connecting the wind turbine 1 to the internet 9 and thereby e.g. to the operator of the wind turbine 1, an internal wireless network 7c and an external wireless network 7d.
In an embodiment the individual data communication networks 7a-7e of the data communication network 7 are accessible from a switch 11. The wind turbine 1 is further equipped with identification tags 12 according to the invention. The identification tags 12 comprise information which is accessible from a handheld device 13 when the identification tag 12 is scanned by an identification tag scanner 14 of the handheld device 13. It should be noted that every component (2, 3, 4, 5, 6, 7, 8) of the wind turbine 1 may in principle be equipped with an identification tag 12.
Typically the identification tag 12 is not able to comprise large amounts of data hence if the information intended to be provided with a specific identification tag 12 is larger than e.g. a few hundred bytes the identification tag 12 is often referring or guiding to a data source / data storage comprising such information.
The retrieved information is processed by a standard data processor 15 and e.g. also with by means of additional data processing applications located at a data storage 17 before it is displayed on a display 16. The information retrieved from the identification tags 12 may be displayed indirectly in that the information may be some kind of network identification such as a name (identification) of a data communication network 7 or an IP address of a member of the data network such as a controller 6.
According to a preferred embodiment of the invention the identification tag 12a is created to provide details such as SSID of a wireless network, virtual LAN identification, login information, etc. enabling the handheld device 13 to access the internal data communication network 7a. The access may be obtained via a network member such as an access point such as a switch 11. Hence when a user arrives at the location of the wind turbine 1 and with his handheld device 13 is scanning the identification tag 12a the handheld device 13 is automatically logged on to the internal data communication network 7a. Alternatively the user is asked to choose a data communication network 7 and upon scanning the identification tag 12 log on to the chosen network.
Logging on a data communication network 7 or controller 6 could be done in many ways no matter if the handheld device is connected to the switch 11 wireless or wired. The following embodiment of the invention is described with reference to a handheld device which is connected to the switch 11 by means of a wired connection. Using wired connections may be advantages in that electric generated noise may disturb the wireless network. When the user of a handheld device such as a laptop is plugging his wired handheld device to the switch 11 of the wind turbine 1 he may then scan the identification tag and get direct access to the wind turbine controller with default rights. As an alternative he is guided to a login page where he can login with his personal username and pass word and thereby obtain the rights assigned to him. According to a further preferred embodiment of the invention the automatic information 12a is further created to provide details such as IP address or URL of the network member i.e. the wind turbine controller 6d. Hence when a user arrives at the location of the wind turbine 1 and with his handheld device 13 is scanning the identification tag 12a the handheld device 13 is automatically logged on to the internal data communication network 7a e.g. connect to an access point such as switch 11. Then via the display 16 the user is asked to enter usemame and password to access additional members behind the access point such as the wind turbine controller 6d in order to manually take over control of the wind turbine 1, update software, monitor operation data, retrieve logged data, etc.
According to a further preferred embodiment of the invention the automatic information 12a is further created to provide details such as user name and password of the wind turbine controller 6d. Hence when a user arrives at the location of the wind turbine 1 and with his handheld device 13 is scanning the identification tag 12a the handheld device 13 is automatically logged on to the wind turbine controller 6d. Then the user may take over control of the wind turbine 1, update software, monitor operation data, retrieve logged data, etc. Often only limited rights are assigned to a user logging in via default login information on an automatically information unit 12a located at the wind turbine 1 to ensure that no uneducated person is accessing the wind turbine controller 6d. Instead expert user may bring their own personal identification tag 12 assigning rights after login according the skills or job the expert has to carry out at the wind turbine 1. Such personal identification tag 12 may be created from visit to visit at the wind turbine 1.
The default login information obtained from the identification tag 12d located in the nacelle 4 may assign more rights to the user than the identification tag 12a located at the bottom of the tower 5. This is because for safety reasons only people with special education is allowed to access the nacelle hence these persons may because of that be defined as experts. Further the default login information could be used by a visitor such as a service person to get in contact with colleagues at the home office to help him out if the service persons personal login does not provide necessary rights to perform the service or the service person is for some reason not registered as user with rights to access the wind turbine controller.
An identification tag 12 located e.g. at the gear could upon scanning provide access to an internal data source (not illustrated) or an external data source 10. Access to the external data source 10 could be obtained via the data communication network 7 and the internet 9.
An example of the access could be information of the path on which information related to the gear is stored on the external data source 10. Such information could be guide to lubrication, detach, assemble, perform different level of service, list of earlier service, etc. The information could be given in various forms e.g. as written, recitation, video or any combination thereof where the service person is instructed step by step.
It should be mentioned that the external data source 10 could be located on one or more corporate networks e.g. of the owner, manufacture, service provider, etc. and thereby large amount of information is accessible upon scanning an identification tag 12.
An identification tag 12 located at the entrance / exit of the tower could upon scanning provide access to a check list located on an internal or external data source as described above. An entrance identification tag 12 could provide access to a check list listing things a visitor such as a service person should be aware of or remember to do upon entering the tower. Likewise an exit identification tag 12 could give access to a check list of things to remember before leaving the tower.
An identification tag 12 could be located on a specific circuit board or panel which upon scanning created a communication line to a hotline / helpdesk.
An identification tag 12 is created with desired information by methods known by the skilled person e.g. my mobile tag generators / QR-code generators. Such information could be a network address of a predetermined wind turbine controller
6 and printed on a blank piece of paper which by the service personal may bring to the wind turbine. The identification tag may be created and emailed to the service technician who only needs a printer to print the identification tag and bring it to the wind turbine to use it. In principle the service technician could from his hotel room scan the identification tag and log on to the predefined member of the data communication network.
The location of the identification tag 12 is principle not relevant but of cause it is preferred that if the information kept by an identification tag 12 is related to a main wind turbine controller 6d, this identification tag 12 is located on or close to the this controller 6d. In this way a person scanning the identification tag 12 have easy access to the information from his handheld device 13. Hence according to the invention the identification tag 12 ensures that a user at a wind turbine 1 is logging automatically on to the right data communication network
7 and / or right controller 6 on the right wind turbine 1 by means of information of the identification tag 12. When referring to an identification tag reference is made to a passive identification as describe in the claims. Further when reference is made to components of the wind turbine (2, 3, 4, 5, 6, 7, 8, 10, 11) reference is made to a member of the data communication network as described in the claims.
List of reference numbers
1. Wind turbine
2. Blade
3. Hub
4. Nacelle
5. Tower
6. Controller
7. Data communication network
8. Additional wind turbine components
9. Internet
10. External data source
11. Switch
12. Identification tag
13. Handheld device
14. Automatic identification scanner
15. Data processor
16. Display
17. Data storage

Claims

Claims
1. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine, the system comprising a passive identification tag, comprising information for identifying said predetermined member of said data communication network and a handheld device comprising a data processor and an identification tag scanner, wherein said handheld device is configured for scanning said identification tag by means of said identification tag scanner to retrieve said information from said identification tag, and wherein said handheld device is further configured to process said information by means of said data processor, and wherein the result of said data processing is information enabling said handheld device to identify and directly access said predetermined member of said data communication network.
2. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to claim 1, wherein said predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine.
3. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to claim 1 or 2, wherein the passive identification tag is a mobile tag, preferably a QR-code or a barcode.
4. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to any of the proceeding claims, wherein the passive identification tag is printed preferably a printed sticker.
5. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to any of the proceeding claims, wherein the passive identification tag requires line of sight to the passive identification tag while scanning.
6. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to any of the proceeding claims, wherein said identification tag further provide login information enabling automatic login to said predefined member from said handheld device.
7. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to any of the proceeding claims, wherein said identification tag is located at said wind turbine.
8. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to claim 7, wherein said identification tag further provides access from said handheld device to information relevant to the location of said identification tag wherein the location of said identification tag is a wind turbine component.
9. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to any of claims 1-6, wherein said identification tag is located on a card.
10. A system for connecting a handheld device to a predetermined member of a data communication network of a wind turbine according to claim 1, wherein said predetermined data communication network is an external communication network external to said wind turbine and wherein said identification tag further provide information enabling access to the internet from said handheld device via said external data communication network.
11. A wind turbine comprising a system for connecting a handheld device to a predetermined member of a data communication network of said wind turbine according to any of the claims 1-10.
12. A method for accessing a predetermined member of a data communication network of a wind turbine by means of a handheld device, the method comprising the steps of:
- creating a passive identification tag comprising information of at least a network address of said predetermined member,
printing said passive identification tag,
bringing said passive identification tag to said wind turbine, preferably attach said identification tag nearby or at said predetermined member, - by means of an identification tag scanner comprised by said handheld device scanning said passive identification tag for retrieving said information, by means of a data processor of said handheld device process said information scanned from said passive identification tag, and
based on said processing of said scanned information open a user interface in a display of said handheld device providing access to said predetermined member of said wind turbine.
13. A method for accessing a predetermined member of a data communication network of a wind turbine according to claim 12, wherein said predefined member is selected from a list consisting of: a controller enabling control of at least part of said wind turbine, an access point of said data communication network, a sensor of said wind turbine, a sensor external to said wind turbine, a data source of said wind turbine and/or a data source external to said wind turbine.
14. A method for accessing a predetermined member of a data communication network of a wind turbine according to claim 12 or 13, wherein the identification tag is created by a mobile tag generator.
15. A method for accessing a predetermined member of a data communication network of a wind turbine according to any of the claims 12-14, wherein the step of scanning requires line of sight between the identification tag scanner and the identification tag.
16. A method for accessing a predetermined member of a data communication network of a wind turbine according to any of the claims 12-15, wherein the passive identification tag is printed preferably on sticky paper.
17. Use of a passive information tag for accessing information related to a wind turbine by means of a system as describe in claims 1-11 or by a method as described in claims 12-16.
PCT/DK2014/000003 2013-01-22 2014-01-15 Wireless identification of a wind turbine WO2014114296A1 (en)

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