EP4293638A1 - Système de traitement des données pour un véhicule automobile - Google Patents

Système de traitement des données pour un véhicule automobile Download PDF

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Publication number
EP4293638A1
EP4293638A1 EP22305873.6A EP22305873A EP4293638A1 EP 4293638 A1 EP4293638 A1 EP 4293638A1 EP 22305873 A EP22305873 A EP 22305873A EP 4293638 A1 EP4293638 A1 EP 4293638A1
Authority
EP
European Patent Office
Prior art keywords
glazing
vehicle
data
sensor
processing unit
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
Application number
EP22305873.6A
Other languages
German (de)
English (en)
Inventor
Julie Rosier
Gérald MERCIER
Shuibao Qi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Priority to EP22305873.6A priority Critical patent/EP4293638A1/fr
Priority to PCT/EP2023/066017 priority patent/WO2023242301A1/fr
Publication of EP4293638A1 publication Critical patent/EP4293638A1/fr
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers

Definitions

  • These data are stored in a standardized format and can be collected (for example by an expert accredited to do so) after a crash or an accident in which vehicles are involved. When analyzed, these data can help determine what the vehicles were doing before, during and after the crash or accident. In other words, the data provided by EDR devices are useful for the reconstruction of a crash or an accident of vehicles.
  • the purpose of the present invention is to overcome all or some of the limitations of the prior art, particularly those outlined here above, by providing a solution that allows for a system capable of providing data useful for the reconstruction of a crash or accident of a motor vehicle, so that this reconstruction is more accurate and reliable than that of the solutions of the prior art.
  • the invention relates to a data processing system for a motor vehicle, said system comprising:
  • the data processing system therefore proposes to collect information, via the measurements made by the sensors positioned on the motor vehicle's glazing.
  • the data processing system may furthermore include one or more of the following features, taken alone or in any technically feasible combination.
  • the processing unit is configured to compare the measurements of each physical quantity with a respective given threshold and, in the event of at least one threshold being exceeded, to post-process the measurements obtained after such exceeding for at least the physical quantity associated with the exceeded threshold, so as to convert them into data of said given format.
  • the at least one vibration sensor is used notably to provide measurements from which it is possible to determine precisely where and from which direction an impact on the vehicle takes place.
  • said at least one sensor comprises two vibration sensors to be respectively positioned on an internal surface and an external surface of said glazing.
  • said at least one sensor comprises three vibration sensors to be positioned on a same surface of said glazing.
  • At least one vibration sensor is a microphone and/or a strain gauge and/or an accelerometer, preferably a variable capacitive accelerometer, or a piezo-resistive accelerometer.
  • said at least one sensor comprises a humidity sensor.
  • Said humidity sensor is used to provide information for understanding the visibility conditions through the glazing. This is of importance, particularly when the glazing is the windshield through which the driver of the vehicle perceives the road.
  • Said temperature sensor is used to provide information that can be used, for example, to determine whether the driving conditions of the vehicle are affected, for example, whether it is cold enough for the road and/or the windscreen to become icy.
  • said glazing is a windshield of the vehicle and said at least one sensor comprises a photodetector to be positioned on a surface of the windshield.
  • Said photodetector is particularly useful in providing information that can be used, for example, to understand the illumination conditions of the windshield. This is particularly advantageous in determining whether the driver is being glared while driving the vehicle, as such glare may be the cause of a crash or an accident.
  • the data processing system further comprises:
  • Such data (videos, images, LIDAR data) therefore complements the measurements provided by the sensor(s) and advantageously improve the accuracy and reliability of the reconstruction of a possible crash or accident.
  • the processing unit is configured to transmit the data output in said format to an event data recorder (EDR) device equipping the vehicle.
  • EDR event data recorder
  • the processing unit is configured to transmit the data output in said format to an external server and/or computer and/or database via a wireless connection.
  • the invention also relates to a data processing method performed by a data processing system according to the invention.
  • the invention also relates to a glazing system for a motor vehicle, said glazing system comprising a glazing for said vehicle and a data processing system according to the invention.
  • the glazing system may be provided as a kit comprising the vehicle glazing and the data processing system, the vehicle glazing and the data processing system being separated (i.e. the system is not yet fixed to the glazing).
  • the kit may comprise a notice to assemble the data processing system to the vehicle glazing.
  • the glazing system may be provided with the data processing system fixed to the vehicle glazing, e.g. with the sensors and/or the processing unit fixed to the glazing (e.g. by use of a glue, or by welding)
  • the processing unit is positioned in proximity to the glazing, e.g. in a frame of the glazing.
  • the invention also relates to a motor vehicle comprising a glazing system according to the invention.
  • Figure 1 illustrates a particular embodiment of a data processing system according to the invention.
  • the data processing system is configured to be integrated in a motor vehicle. More particularly, it is considered in the following description that the data processing system is already integrated into the vehicle, this integration being achieved through cooperation with a glazing of the motor vehicle as described in more detail later.
  • said data processing system is part of a glazing system 100 according to the invention itself already integrated into the motor vehicle.
  • the motor vehicle is a car, for example an electric car.
  • a car is only an example of implementation of the invention, no limitation being attached to the nature of the motor vehicle which may be a bus, a truck, a van, etc.
  • the car is equipped with an EDR device (not shown in Figure 1 ), which EDR device can be positioned at any suitable location on or within the car as is known to the skilled person.
  • the EDR device may be integrated into an airbag control unit of the car.
  • the glazing with which the data processing system cooperates may be a laminated glazing, i.e. the glazing may comprise two or more layers of glass panels bonded together by an (e.g. plastic) interlayer.
  • the glazing may be a monolithic glazing, i.e. a single lite of glass.
  • the data processing system comprises a set of sensors, each sensor being positioned on a surface of the windshield 10 and configured to perform measurements of a physical quantity.
  • said sensor may be attached on the windshield 10 by any suitable manner for fixing a sensor on a glazing, such as, for example, using a glue to weld the sensor on the glazing, or welding the sensor on the glazing.
  • said set of sensors comprises three vibration sensors 21, 22, 23 positioned on the external surface 11 of the windshield 10, respectively at the bottom center, on the left and on the right of the windshield 10.
  • all vibration sensors 21, 22, 23 are MEMS accelerometers, comprising variable capacitive accelerometers and/or piezo-resistive accelerometers.
  • some of the vibration sensors may be accelerometers, the remaining vibration sensors being microphones and/or strain gauges.
  • all of the vibration sensors 21, 22, 23 may be microphones.
  • all the vibration sensors 21, 22, 23 may be strain gauges.
  • some of the vibration sensors may be strain gauges and some of the vibration sensors may be microphones.
  • said another variant does not exclude the presence of vibration sensors positioned on either side of the windscreen 10 with, for example, more than one vibration sensor on the external surface 11 or the internal surface 12 of the windshield 10 (for example, two vibration sensors on the external surface 11 and one vibration sensor on the internal surface 12).
  • the data processing system also comprises a humidity sensor 30, preferably positioned on the external surface 11 of the windshield 10, here at the top left of the windshield 10. Having a humidity sensor 30 positioned on the external surface 11 of the windshield 10 advantageously provides data on to the humidity in the car's external environment.
  • this does not exclude the humidity sensor 30 being positioned on the internal surface 12 of the windshield 10. In this way, it is possible to access data relating to the humidity on the internal surface 12 of the windshield 10, which is also relevant to the driving conditions of the car.
  • the data processing system comprises a single humidity sensor 30, there is in fact no limitation on the number of humidity sensors that can be contemplated.
  • any known type of humidity sensor 30 can be used to implement the invention, such as a capacitive or resistive humidity sensor. These aspects are well known to the skilled person and are therefore not discussed further here.
  • the data processing system also comprises a photodetector 50, preferably positioned on the internal surface 12 of the windshield 10, here at the top center of the windshield 10. Having a photodetector 50 positioned on the internal surface 12 of the windshield 10 advantageously provides data on the condition of brightness, and therefore possible glare, experienced by the driver of the car
  • the processing unit 60 is also configured, in the event of at least one threshold being exceeded, to post-process the measurements obtained after such exceeding for at least the physical quantity associated with the exceeded threshold, so as to convert them into data of a given format usable for the determination of circumstances of an accident or a crash in which the car may be involved.
  • the processing unit 60 is a microprocessor positioned in proximity to the windshield 10, more specifically in the frame of the windshield 10. As a microprocessor, the processing unit 60 forms a compact unit, which is particularly advantageous when it comes to integration in the car.
  • the processing unit 60 is also configured to transmit the data output in said format to an external server and/or computer and/or database 70 via a wireless connection.
  • a wireless connection means may include a 4G or 5G chip.
  • the wireless connection means may be configured to transfer data by Hypertext Transfer Protocol (HTTP Port 80).
  • the wireless connection means may be configured to transfer data by Hypertext Transfer Protocol Secure (HTTPS).
  • HTTPS Hypertext Transfer Protocol Secure
  • the processing unit 60 transfers data securely or not, the data may be encrypted, such as, for example, via RSA encryption.
  • the wireless connection means may alternatively use other types of data connection such as GPRS (General Packet Radio Service), Bluetooth (for example, connected to the vehicle or to a smartphone) or Wi-Fi.
  • the invention also covers embodiments in which the data output by the processing unit 60 are only transmitted to the EDR device fitted to the car.
  • the car is not equipped with an EDR device and the data output by the processing unit 60 are only transmitted to an external server and/or computer and/or database 70. In this case, this is equivalent to considering that an EDR device is remotely located from the car.
  • Said data processing method comprises steps of:
  • the comparison step is, for example, carried out on the frequency at which measurements are acquired and received from the sensors 21, 22, 23, 30, 40, 50.
  • said frequency may be distinct from the one at which measurements are performed, the processing unit 60 being able to store measurements received for a specific period of time (in the manner of a buffer memory) and only perform comparisons after this period.
  • the data processing system comprises said plurality of sensors 21, 22, 23, 30, 40, 50.
  • the data processing system comprises only a subset of said sensors 21, 22, 23, 30, 40, 50, for example a single sensor.
  • the sensors may be located close to the windshield camera zone, using an opaque black serigraphy to be invisible from both interior and exterior side. This location allows the distance and number of wire connections to be reduced.
  • the data processing system further comprises storage means configured (e.g. a memory of the processing unit 60, a remote memory in the cloud, etc.) to store videos of said camera and/or images of said image acquisition means and/or LIDAR data of said LIDAR system in the event of at least one threshold being exceeded.
  • storage means configured (e.g. a memory of the processing unit 60, a remote memory in the cloud, etc.) to store videos of said camera and/or images of said image acquisition means and/or LIDAR data of said LIDAR system in the event of at least one threshold being exceeded.
  • Such data videos, images, LIDAR data
  • Such data therefore complements the measurements provided by the sensor(s) and advantageously improve the accuracy and reliability of the reconstruction of a possible crash or accident.
  • processing unit 60 and the EDR device are two separate entities. However, this does not exclude other embodiments in which the processing unit 60 is an EDR device or is integrated into an EDR device in the car.
  • all the measurements made by the sensors are converted into data of a specific format and then transmitted, for example, to an EDR device, which is responsible for storing/deleting them recurrently, in the manner of a buffer memory.
  • the EDR device may then receive one or more signals relating to one or more thresholds being exceeded (e.g. from the sensors or even from the processor 60) so that it only switches to a storage mode (i.e. there is no more data deletion).
EP22305873.6A 2022-06-15 2022-06-15 Système de traitement des données pour un véhicule automobile Pending EP4293638A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22305873.6A EP4293638A1 (fr) 2022-06-15 2022-06-15 Système de traitement des données pour un véhicule automobile
PCT/EP2023/066017 WO2023242301A1 (fr) 2022-06-15 2023-06-14 Système de traitement de données pour un véhicule à moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22305873.6A EP4293638A1 (fr) 2022-06-15 2022-06-15 Système de traitement des données pour un véhicule automobile

Publications (1)

Publication Number Publication Date
EP4293638A1 true EP4293638A1 (fr) 2023-12-20

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ID=82308414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22305873.6A Pending EP4293638A1 (fr) 2022-06-15 2022-06-15 Système de traitement des données pour un véhicule automobile

Country Status (2)

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EP (1) EP4293638A1 (fr)
WO (1) WO2023242301A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466153B1 (fr) * 2002-01-16 2008-05-14 METHODE ELECTRONICS, Inc. Detecteur d'impact omnidirectionnel
US20170069144A1 (en) * 2014-01-31 2017-03-09 Cambridge Consultants Limited Monitoring device
WO2021013673A1 (fr) * 2019-07-19 2021-01-28 Agc Glass Europe Capteur de vitrage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1466153B1 (fr) * 2002-01-16 2008-05-14 METHODE ELECTRONICS, Inc. Detecteur d'impact omnidirectionnel
US20170069144A1 (en) * 2014-01-31 2017-03-09 Cambridge Consultants Limited Monitoring device
WO2021013673A1 (fr) * 2019-07-19 2021-01-28 Agc Glass Europe Capteur de vitrage

Also Published As

Publication number Publication date
WO2023242301A1 (fr) 2023-12-21

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