EP3994676A1 - Verfahren, computerprogramm und vorrichtung zur verarbeitung von durch ein kraftfahrzeug erfassten daten, sowie zum bereitstellen von parametern für eine solche verarbeitung - Google Patents
Verfahren, computerprogramm und vorrichtung zur verarbeitung von durch ein kraftfahrzeug erfassten daten, sowie zum bereitstellen von parametern für eine solche verarbeitungInfo
- Publication number
- EP3994676A1 EP3994676A1 EP20734381.5A EP20734381A EP3994676A1 EP 3994676 A1 EP3994676 A1 EP 3994676A1 EP 20734381 A EP20734381 A EP 20734381A EP 3994676 A1 EP3994676 A1 EP 3994676A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- motor vehicle
- recorded
- temporal
- concealment
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/012—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from other sources than vehicle or roadside beacons, e.g. mobile networks
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
- G06F21/6254—Protecting personal data, e.g. for financial or medical purposes by anonymising data, e.g. decorrelating personal data from the owner's identification
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
Definitions
- the present invention relates to a method, a computer program with instructions and a device for processing data recorded by a motor vehicle.
- the invention also relates to a method, a computer program with instructions and a device for providing parameters for processing data recorded by a motor vehicle
- the invention further relates to a motor vehicle and a backend in which a method according to the invention or a
- data can be taken from the motor vehicle and sent to a backend.
- data from vehicle sensors can be based on location and time
- Traffic flow data are extracted.
- the data is then combined with other data on a card and fed back to the functions using it.
- the data taken from a vehicle may, however, allow conclusions to be drawn about the personal or factual circumstances of a specific or at least identifiable natural person, for example about the driver of the
- Declaration of consent can be obtained from the user, which can be a nuisance for the user in the long run.
- the data can be different
- the aim of this anonymization process is to hide the identity of the data producer in an anonymization group.
- DE 10 2011 106 295 A1 describes a method for
- traffic data that describe a traffic condition and originate from the motor vehicles are provided to a service provider. This is done exclusively via a backend server device operated by a security operator. The traffic data is anonymized by means of the backend server device before it is transmitted to the service provider.
- US 2017/0083708 A1 describes a mechanism for anonymizing sequential and location-based data records.
- the records are scanned to a number of
- Uncover data protection vulnerabilities A set of privacy restrictions is generated based on the privacy vulnerabilities discovered, and a set of usage restrictions is identified.
- the records are anonymized using the data protection restrictions and the usage restrictions, creating a anonymized data set is formed.
- the anonymized data set is then returned to the company.
- Another approach to anonymization involves segmenting the data.
- the data of a vehicle is divided into different segments while driving. In this way it is ensured that possible data users cannot determine the complete data record of the journey of the vehicle.
- a very small number of vehicles travel the entire route, and possibly only one vehicle. However, many vehicles pass through the individual segments.
- Another approach to anonymization is to obscure the location or time of the data.
- the data is randomly shifted additively in space or in time. In this way, identification of the original vehicle can only be permitted in relation to a group of vehicles.
- DE 10 2018 225 287 A1 describes a method for
- Processing of data captured by a motor vehicle In a first step, a date recorded by a motor vehicle is received. A local or temporal obfuscation is then applied to the received date. The obfuscated date is finally passed on for evaluation.
- the data received can be concealed within the motor vehicle or in a receiving system connected to the motor vehicle
- DE 10 2018 008 281 A1 describes a method for operating an assistance system of a vehicle.
- objects are detected in the vicinity of the vehicle.
- a system action is triggered if an entry for the object is contained in a database which marks the system action as authorized.
- the data is anonymized to the effect that identification data is removed and spatial obfuscation is carried out
- DE 10 2015 216 414 A1 describes a method for acquiring information about a movement of a first vehicle from a starting area to a destination area.
- the first vehicle in the starting area swaps with a second vehicle in the
- Starting area is located, a first key and exchanges in the target area with a third vehicle that is located in the target area, a second key. Furthermore, the first vehicle encrypts first information about the starting area and the
- Target area of movement using the first key and the second Key stores it together with second information about the encryption, so that the encrypted first information can only be decrypted with the help of a specified number of additional information about the encryption.
- a method for processing data recorded by a motor vehicle comprises the steps:
- a computer program contains instructions which, when executed by a computer, cause the computer to carry out the following steps for processing data recorded by a motor vehicle:
- the term computer should be understood broadly. In particular, it also includes control devices, workstations and other processor-based data processing devices
- the computer program can, for example, be provided for electronic retrieval or be stored on a computer-readable storage medium.
- a device for processing data recorded by a motor vehicle has:
- an input for receiving at least one set of parameters for concealing the recorded data in terms of time and location and for receiving one of one
- an anonymization unit for applying a temporal and spatial obfuscation to the received date using one of the received parameter sets
- the anonymization procedure does not work with fixed settings for the temporal and spatial obfuscation, but allows a controllable mixed anonymization.
- previously received parameter sets are used, which allow a situation-dependent adaptation of the
- a method for providing parameters for processing data recorded by a motor vehicle comprises the steps:
- a computer program contains instructions which, when executed by a computer, cause the computer to carry out the following steps for providing parameters for processing data recorded by a motor vehicle:
- the computer program can, for example, be provided for electronic retrieval or be stored on a computer-readable storage medium.
- a device for providing parameters for processing data acquired by a motor vehicle has:
- an input for receiving at least one set of parameters for concealing the recorded data in terms of time and location and for receiving one of one
- a parameter determination unit for determining at least one parameter set for concealing the acquired data in terms of time and location
- a transmission unit for transmitting the at least one parameter set to a device for processing data recorded by a motor vehicle.
- Obfuscation were anonymized Rather, the data user can, depending on the situation or occasion, cause the data generator to use an adapted parameter set for the anonymization. For this purpose, e.g. the desired parameter set can be transmitted to the data generator. Alternatively, it is also possible to use just one
- the at least one parameter set includes information on the position or area for which the at least one parameter set can be used. It is preferably possible not only to carry out the adaptation of the parameter set globally for the obfuscation filter, but to carry it out precisely for certain positions or areas. This enables, for example, slow and precise concealment, ie a large temporal concealment in combination with a low one local concealment, to be used on a previously recognized accident site without causing a large temporal concealment in other areas.
- the at least one parameter set includes information on the type of recorded data for which the at least one parameter set can be used. This makes it possible to anonymize only certain or recognized data records
- a quick and imprecise concealment can be permitted for a recognized emergency vehicle, i.e. a short time
- a selection is made from two or more
- Parameter sets for the temporal and spatial obfuscation of the recorded data Another possibility is obfuscation with several parameter sets, which can be selected at random. It can be advantageous if, for example, 50% of the data is anonymized with a large temporal obfuscation in combination with a low local obfuscation, while the remaining 50% of the data is anonymized with a low temporal obfuscation in combination with a large local obfuscation. In this way, it can be statistically ensured that, for example, new events or fundamental changes to the events are recognized quickly, while known data can be measured more precisely over time thanks to the slow recognition.
- a first set of parameters is first transmitted, which causes a concealment of the recorded data with a low temporal concealment in combination with a large local concealment.
- a second is then performed
- a set of parameters transmitted which causes a concealment of the recorded data with a large temporal concealment in combination with a low local concealment is possible, for example, to record a traffic jam or the end of a traffic jam within about 60 seconds to an accuracy of 5 km.
- the data user he can change the parameters and thus precisely localize the end of the traffic jam, for example within 500 m.
- This is now done with a time offset.
- the data user is like this enabled to warn the traffic quickly or to divert large areas using navigation instructions. In the long term, it is also able to warn the driver exactly before the end of the traffic jam.
- a method according to the invention or one according to the invention is preferably used
- the solution according to the invention can also be used in a backend to which the data is transmitted from the vehicle.
- FIG. 1 shows schematically a method for processing data recorded by a motor vehicle
- FIG. 2 shows a first embodiment of a device for processing data recorded by a motor vehicle
- FIG. 3 shows a second embodiment of a device for processing data acquired by a motor vehicle
- Fig. 4 shows schematically a motor vehicle in which a solution according to the invention is implemented
- Fig. 5 shows schematically a method for providing parameters for the
- Fig. 6 shows a first embodiment of a device for providing
- Fig. 7 shows a second embodiment of a device for providing
- FIG. 1 schematically shows a method for processing data captured by a motor vehicle.
- a first step at least one parameter set for concealing the captured data in terms of time and location is received 10.
- a data captured by a motor vehicle is received 11
- a temporal and spatial obfuscation is applied to the received data using one of the received parameter sets 12
- the obfuscated data is finally passed on for further processing 13
- the parameter set can include information for which position or for which area it is applicable.
- the parameter set can also include information on the type of recorded data for which it can be used. This information is preferably taken into account by the data generator if a parameter set is to be used for the obfuscation. Alternatively there is one
- a parameter set for concealment can be selected at random
- FIG. 2 shows a simplified schematic illustration of a first embodiment of a device 20 for processing data D recorded by a motor vehicle
- Device 20 has an input 21 for receiving at least one parameter set P for concealing the recorded data from a data user in terms of time and location and for receiving data D Ein recorded by a motor vehicle
- the data processing unit 22 determines the parameters necessary for a temporal and spatial concealment.
- An anonymization unit 23 then applies a temporal and spatial concealment to the date D received.
- the concealed datum VD is finally transferred to another via an output 25
- the parameter set P can include information on the position or area for which it is applicable.
- the parameter set P can also include information about the type of recorded data for which it can be used. This information is preferably taken into account by the data processing unit 22 if a parameter set P is to be used for the concealment.
- the data processing unit 22 and the anonymization unit 23 can be controlled by a control unit 24. Via a user interface 27,
- the data processing unit 22, the anonymization unit 23 or the control unit 24 can be changed.
- the data accumulating in the device 20 can, if required, be stored in a memory 26 of the device 20, for example for a later evaluation or for use by the components of the device 20.
- Control unit 24 can be implemented as dedicated hardware, for example as integrated circuits. Of course, they can also be partially or completely combined or implemented as software that runs on a suitable processor, for example on a GPU.
- the input 21 and the output 25 can be implemented as separate interfaces or as a combined bidirectional interface
- FIG. 3 shows a simplified schematic illustration of a second embodiment of a device 30 for processing data recorded by a motor vehicle.
- Device 30 has a processor 32 and a memory 31.
- the device 30 is a computer, a workstation or a control device.
- Instructions are stored in memory 31 which, when executed by processor 32, cause device 30 to carry out the steps according to one of the described methods.
- the instructions stored in the memory 31 thus embody a program which can be executed by the processor 32 and which implements the method according to the invention.
- the device has an input 33 for receiving information. Data generated by the processor 32 are provided via an output 34. In addition, they can be stored in memory 31.
- the input 33 and the output 34 can be combined to form a bidirectional interface.
- the processor 32 may include one or more processing units, such as microprocessors, digital signal processors, or combinations thereof.
- the memories 26, 31 of the described embodiments can have volatile and / or non-volatile storage areas and a wide variety of storage devices and
- Storage media include, for example, hard drives, optical storage media or semiconductor memories.
- the two embodiments of the device can be integrated into the motor vehicle or be part of a backend connected to the motor vehicle
- FIG. 4 schematically shows a motor vehicle 40 in which a solution according to the invention is implemented.
- the motor vehicle 40 has a sensor system 41 with which data D can be recorded, for example a traffic situation
- Motor vehicle 40 are a navigation system 42, a data transmission unit 43 and a number of assistance systems 44, one of which is shown as an example.
- a connection to a backend 80 can be set up by means of the data transmission unit 43, in particular for transmitting captured data and for receiving at least one parameter set P.
- a device 20 for processing the captured data D ensures that the data is concealed in terms of time and location Use of the at least one received parameter set so that disguised data VD are transmitted to backend 80.
- the data D can only be concealed in the backend 80 before it is made available to a data user by the latter.
- the backend 80 receives the at least one parameter set P.
- a memory 45 is provided for storing data. The
- Fig. 5 shows schematically a method for providing parameters for the
- At least one parameter set is determined 50 for a temporal and spatial concealment of the recorded data. This is then transmitted 51 to a device for processing data recorded by a motor vehicle.
- the parameter set can include information for which position or for which Area he is applicable.
- the parameter set can also include information on the type of recorded data for which it can be used.
- two or more parameter sets can be transmitted for concealing the recorded data in terms of time and location. From these, the data generator can then randomly select a parameter set for the concealment
- FIG. 6 shows a first embodiment of a device 60 for providing
- Device 60 has an input 61, for example for receiving requests from a data user with regard to the obfuscation of captured data Ein
- Parameter determination unit 62 determines at least one parameter set P for concealing the acquired data in terms of time and location. This at least one Parameter set P is then transmitted from a transmission unit 63 to a device 20 for processing data recorded by a motor vehicle.
- the parameter set P can include information for which position or for which area it is applicable.
- the parameter set P can also include information about the type of recorded data for which it can be used.
- two or more sets of parameters P can be transmitted for concealing the recorded data in terms of time and location. From these, the device 20 can then randomly select a parameter set P for the concealment.
- the parameter determination unit 62 and the transmission unit 63 can be controlled by a control unit 64. Via a user interface 67 can
- Transmission unit 63 or the control unit 64 can be changed.
- the data obtained in the device 60 can, if necessary, be stored in a memory 66 of the device 60, for example for later evaluation or for use by the components of the device 60.
- Transmission unit 63 and control unit 64 can be implemented as dedicated hardware, for example as integrated circuits. Of course, they can also be partially or completely combined or implemented as software that runs on a suitable processor, for example on a GPU.
- the input 61 and the output 65 can be implemented as separate interfaces or as a combined bidirectional interface.
- FIG. 7 shows a second embodiment of a device 70 for providing parameters for processing data captured by a motor vehicle.
- Device 70 has a processor 72 and a memory 71.
- the device 70 is a computer or a workstation. Instructions are stored in the memory 71 which, when executed by the processor 72, cause the device 70 to execute the steps according to one of the described methods.
- the instructions stored in the memory 71 thus embody a program which can be executed by the processor 72 and which implements the method according to the invention.
- the device has an input 73 for receiving information.
- Data generated by the processor 72 are provided via an output 74.
- they can be stored in the memory 71.
- the input 73 and the output 74 can be combined to form a bidirectional interface.
- Processor 72 may include one or more processing units, such as microprocessors, digital signal processors, or combinations thereof.
- the memories 66, 71 of the embodiments described can have volatile and / or non-volatile memory areas and a wide variety of storage devices and
- Storage media include, for example, hard drives, optical storage media or semiconductor memories
- FIG. 8 illustrates variants of the concealment with constant boundary conditions.
- the possible combinations of temporal concealment and local concealment for a given degree of anonymization are plotted.
- the amount ⁇ s of local concealment is greater, the lower the amount ⁇ t of temporal concealment, and vice versa.
- a minimum temporal obfuscation requires a maximum local obscuration, whereas a minimum local obfuscation requires a maximum temporal obscuration. This means that the data user always has to make a compromise with regard to the obfuscation.
- FIG. 9 schematically shows a system concept of the solution according to the invention.
- the basic idea of the solution is that the data user 91 is able at any time by means of a parameter provision 93 to change the parameter sets P of the obfuscation algorithm 92 which is applied to the data recorded by a data generator 90.
- the data user 91 can, for example, quickly read out effects from the data, but then specify them more precisely afterwards.
- the data user 91 it is possible, for example, to record a traffic jam or the end of a traffic jam with an accuracy of 5 km within about 60 seconds. As soon as this is known to the data user 91, he can change the parameters and thus precisely localize the end of the traffic jam e.g. within 500 m. However, this is now done with a time offset of 600 seconds.
- the data user 91 is thus enabled to warn the traffic quickly or to divert it over a large area by means of navigation instructions. In the long term, it is also able to warn the driver exactly before the end of the traffic jam.
- the adjustment of the parameter set P can not only be global for the
- Obfuscation algorithm 92 can be carried out, but also precisely for certain positions or areas or for certain data sets or recognized events. In this way there is the possibility of slow and precise obfuscation, ie a large temporal obfuscation in combination with a low local obfuscation, on one to use previously recognized end of traffic jam. At the same time, rapid and imprecise concealment can be permitted for a recognized rescue vehicle, ie a low temporal concealment in combination with a large local concealment.
- Another possibility is a concealment with several parameter sets P, which are selected at random. It can be advantageous if, for example, 50% of the data is anonymized with a large temporal obfuscation in combination with a low local obfuscation, while the remaining 50% of the data is anonymized with a low temporal obfuscation in combination with a large local obfuscation. In this way, it can be statistically ensured that, for example, new events or fundamental changes to the events are recognized quickly, while known data can be measured more precisely over time thanks to the slow recognition.
- This approach of using a plurality of parameter sets P is particularly advantageous when a precise adaptation of the parameter sets P is not possible or not possible with sufficient certainty.
- a possible application for concealment with several parameter sets P is the identification of an icy road.
- 30% of the measurements can be obscured with a spatial uncertainty of 5 km and a temporal uncertainty of 1 min. This allows new icing to be recognized quickly.
- the warnings are therefore available quickly, but are spatially very roughly 70% of the measurements, on the other hand, are obscured with a spatial uncertainty of 250 m and a temporal uncertainty of 20 minutes. This allows the limits of the icing on the road to be precisely recognized.
- the warnings are therefore precise, but very sluggish.
- the associated parameter set P or the parameter matrix is:
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019209711.1A DE102019209711A1 (de) | 2019-07-02 | 2019-07-02 | Verfahren, Computerprogramm und Vorrichtung zur Verarbeitung von durch ein Kraftfahrzeug erfassten Daten, sowie zum Bereitstellen von Parametern für eine solche Verarbeitung |
| PCT/EP2020/067453 WO2021001207A1 (de) | 2019-07-02 | 2020-06-23 | Verfahren, computerprogramm und vorrichtung zur verarbeitung von durch ein kraftfahrzeug erfassten daten, sowie zum bereitstellen von parametern für eine solche verarbeitung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3994676A1 true EP3994676A1 (de) | 2022-05-11 |
Family
ID=71130985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20734381.5A Pending EP3994676A1 (de) | 2019-07-02 | 2020-06-23 | Verfahren, computerprogramm und vorrichtung zur verarbeitung von durch ein kraftfahrzeug erfassten daten, sowie zum bereitstellen von parametern für eine solche verarbeitung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12026282B2 (de) |
| EP (1) | EP3994676A1 (de) |
| CN (1) | CN114097011B (de) |
| DE (1) | DE102019209711A1 (de) |
| WO (1) | WO2021001207A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019209485A1 (de) | 2019-06-28 | 2020-12-31 | Volkswagen Aktiengesellschaft | Verfahren, Computerprogramm und Vorrichtung zur Verarbeitung von durch ein Kraftfahrzeug erfassten Daten |
| DE102019209711A1 (de) | 2019-07-02 | 2021-01-07 | Volkswagen Aktiengesellschaft | Verfahren, Computerprogramm und Vorrichtung zur Verarbeitung von durch ein Kraftfahrzeug erfassten Daten, sowie zum Bereitstellen von Parametern für eine solche Verarbeitung |
| US20240249026A1 (en) * | 2021-06-30 | 2024-07-25 | Nippon Telegraph And Telephone Corporation | Anonymization apparatus, anonymization method and program |
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| US20220358248A1 (en) | 2022-11-10 |
| WO2021001207A1 (de) | 2021-01-07 |
| CN114097011A (zh) | 2022-02-25 |
| CN114097011B (zh) | 2024-05-24 |
| DE102019209711A1 (de) | 2021-01-07 |
| US12026282B2 (en) | 2024-07-02 |
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