WO2023110357A1 - Procede de detection de presence a l'interieur d'un vehicule verrouille et dispositif de detection associe - Google Patents
Procede de detection de presence a l'interieur d'un vehicule verrouille et dispositif de detection associe Download PDFInfo
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- WO2023110357A1 WO2023110357A1 PCT/EP2022/083165 EP2022083165W WO2023110357A1 WO 2023110357 A1 WO2023110357 A1 WO 2023110357A1 EP 2022083165 W EP2022083165 W EP 2022083165W WO 2023110357 A1 WO2023110357 A1 WO 2023110357A1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/187—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interference of a radiation field
Definitions
- TITLE PRESENCE DETECTION METHOD INSIDE A LOCKED VEHICLE AND ASSOCIATED DETECTION DEVICE
- the invention relates to a method for detecting presence inside a vehicle which has been previously locked and an associated detection device.
- the invention applies particularly to the detection of young children, or of a baby who has been forgotten in the rear seats when the driver has left the vehicle and locked it.
- sensors that already exist on the vehicle, for example UWB, “Ultra Wide Band” or Ultra Wide Band frequency transmitters/receivers, which are located on the vehicle in order to allow access "hands-free” to the vehicle and/or "hands-free” starting of the vehicle. These sensors are then used to detect the breathing movement, i.e. the heart rate of a human located in the vehicle.
- the advantage of using the ultra-wideband band lies in the frequency of the waves emitted which allows the waves to penetrate through clothing.
- the disadvantages of using the ultra-wideband frequency are numerous: a.
- the level of the reflected signal is low because it is sensitive to the environment, if there is movement outside the vehicle for example, this movement can disturb the reflected signal, b.
- the acquisition time of the reflected signal necessary to validate the detection can sometimes exceed the 10 seconds imposed by the "euroNCAP" standard to give the alert and reach 20 seconds, which is not acceptable, c.
- Environmental factors such as rain, snow, vehicle vibration, or even temperature impact the performance of ultra-wideband presence detection.
- the invention therefore proposes a detection method and a detection device overcoming the drawbacks of the prior art, in particular by improving the precision of detection, and by reducing the number of false alarms.
- the invention proposes a method for detecting presence inside a locked vehicle, by a detection device comprising at least one internal ultra-wideband transmission-reception module capable of transmitting towards the interior of the vehicle. vehicle and at least two external ultra-wideband transmit-receive modules capable of transmitting to the outside of the vehicle, said method being noteworthy in that it comprises the following steps: a. Vehicle lock detection, b. During a first predetermined duration, alternation of emissions by the internal module, of waves at different predetermined frequencies and at different associated predetermined powers, and simultaneous emission of waves by a first external module, c. Reception by said internal module of reflected waves, d. Reception by a second external module of the waves transmitted by said first external module, e.
- the simultaneous detection of an event corresponds to the detection by the internal module and by the second external module of a wave variation at the same time.
- the emissions by the internal module are repeated at different predetermined power values and at different associated predetermined frequency values and the comparison is only performed for waves emitted at maximum power values.
- the process is repeated with wave emissions by the internal module of a second predetermined duration greater than the first predetermined duration, and only at a maximum power value.
- the transmission of waves by the external module is carried out at a power equal to the transmission power of the internal module.
- the method also comprises the simultaneous transmission by a second external module of waves and the reception by the first external module of the waves thus transmitted and in that the comparison is carried out between the waves reflected and received by the internal module and a sum made up of the waves received by the first external module and waves received by the second external module.
- the invention also applies to a presence detection device inside a vehicle comprising at least one internal ultra-wideband transmission-reception module capable of transmitting to the interior of the vehicle and to the at least two external ultra-wideband transmit-receive modules capable of transmitting to the exterior of the vehicle, the device being remarkable in that said at least internal module and said at least two external modules are each capable of determining a waves received, in that the internal module is capable of alternating emission of waves at different power values and predetermined frequencies and in that the device further comprises: a. Means for detecting the locking of the vehicle, b. Means of synchronization between transmissions from the internal module and transmissions from at least one first external module, c. Means for comparing waves received by the internal module and waves received by at least one second external module, d. Means of detecting presence inside the vehicle according to the result of the comparison.
- the predetermined frequency values are minimum and maximum frequency values and in that the predetermined power values are minimum and maximum power values.
- the device further comprises a plurality of external modules and means for summing the waves received by the external modules and in that the comparison means compare the waves received by the internal module with a sum waves received by the external modules.
- the invention also relates to any computer program product, characterized in that it comprises a set of program code instructions which, when executed by one or more processors, configure the processor or processors to implement a method according to any one of the characteristics listed above.
- the invention applies to any motor vehicle comprising a detection device according to any one of the features listed above.
- FIG. 1 is a schematic representation of a motor vehicle equipped with the presence detection device, according to the invention.
- Figure 2 is a schematic representation of a motor vehicle on which are represented two wave emission zones emitted by an internal module at two different powers,
- FIG. 3 is a flowchart representing the detection method according to the invention.
- FIG. 4 schematically represents the detection device according to the invention
- figure 5a is a graph representing according to time t, a CIR profile of the waves received by an internal module,
- figure 5b is a graph representing, according to time t, a CIR profile of the waves received by an external module
- FIG. 5c is a graph representing, over time, a CIR profile of the waves received by the internal module, from which an event detected on the CIR profile of the waves received by the external module has been removed, according to the detection method according to the invention.
- FIG 1 there is shown a motor vehicle V equipped with a presence detection device D inside a locked vehicle according to the invention.
- the device D comprises: a. at least one internal transmission/reception module INT1, INT2 for ultra-wideband communication capable of transmitting waves directed towards the interior of the vehicle V; b. at least two external transmission reception modules EXT1, EXT2, EXT3, EXT4 for ultra-wideband communication, capable of transmitting waves directed towards the exterior of the vehicle V.
- Said internal modules INT1, INT2 and external modules EXT1, EXT2, EXT3, EXT4 allow "hands-free” access to the vehicle and/or “hands-free” starting of the vehicle V and allow communication with an access device "hands-free” such as a badge or a smart mobile phone (not shown in Figure 1).
- These internal and external modules are equipped with at least one Ultra Wide Band communication antenna, and a transmitter/receiver capable of transmitting and receiving ultra wide band waves, that is to say waves corresponding to pulses of very short duration, a few nanoseconds in a high frequency band with a width ranging from 500 MHz to 1 GHz.
- Ultra-wideband means a frequency band preferably between 3.1 GHz and 10.6 GHz over a frequency range preferably of 500 MHz. This is known to those skilled in the art and will not be further detailed here.
- a device D comprising two internal modules I NT1, 1 NT2 and four external modules EXT1, EXT2, EXT3 and EXT4.
- the detection device D further comprises means M1 for processing the waves received.
- each module INT1, INT2, EXT1, EXT2, EXT3, EXT4 can comprise processing means M1 or alternatively a central electronic unit 10 connected to said modules can comprise these processing means.
- These processing means M1 are presented preferentially, but in no way limiting in the form of software means which make it possible to determine a parameter called CIR (“Channel Impulse Response” in English or impulse response), that is to say a profile waves received by said module sampled according to time t. Note that either the amplitude of the CIR or the phase of the CIR can be used.
- the frequency measurements of the waves received are transformed by the inverse of a Fourier Transform in order to generate values in time units.
- the magnitude of the CIR consists of the absolute value of the real part and the imaginary part of the values in time unit.
- the phase of the CIR consists of the arctangent of the ratio of the imaginary part divided by the part of the values in time unit.
- the processing means M1 also comprise a clock H making it possible to determine the amplitude or the phase CIR according to time t. As will be specified below, the clock H is triggered when the waves are transmitted by the internal modules or by the external modules.
- each module INT1, INT2, EXT1, EXT2, EXT3, EXT4 is able to determine the CIR profile of the waves it receives according to time t.
- each module is equipped with an H clock or is synchronized with an H clock which is triggered when waves are transmitted by said module.
- the start time of the time measurement t corresponds to the time of emission of the waves by said module. This is known to those skilled in the art.
- the internal modules INT1, INT2 are also capable of emitting UWB (“Ultra Wide Band”) waves at different frequencies and at different predetermined frequencies.
- UWB Ultra Wide Band
- the detection device D also comprises: a. Means for detecting the locking of the vehicle MO, b. M2 synchronization means between emissions from at least one internal module INT1, INT2 and emissions from at least a first external module EXT1, EXT2, EXT3, EXT4, c. comparison means M3 between the waves received, more precisely between a CIR profile of waves received, by the internal module INT1, INT2 and the waves received, more precisely a CIR profile of waves received by a second external module EXT 1, EXT2, EXT3, EXT4, d. Validation means M4 of the detection of presence in the passenger compartment of the vehicle according to the result of the comparison.
- the detection device D comprises a plurality of external modules, and means M5 for summing the waves received by the external modules.
- the processing means M1, the detection means MO, the synchronization means M2, the comparison means M3 and the validation means M4 can be in software form, located all or in part in each of the modules or alternatively in the central electronic unit 10.
- the internal modules INT1, INT2 are capable of emitting waves by alternating between different predetermined frequency and power values, more precisely between minimum and maximum power values Pmin , Pmax and minimum and maximum frequency values Fmin, Fmax.
- a first step E0 it is detected at time T0 that the vehicle is locked. This detection is carried out by the vehicle, via the door locking system, this is known from the prior art and will not be detailed here.
- Said locking detection then triggers the starting of the internal module INT1 (step E20) and of the two external modules EXT1, EXT4 (step E10) according to the detection method of the invention.
- the internal module INT1 transmits for a first predetermined duration T 1 , for example T 1 is equal to 500 ms of UWB waves at a first predetermined frequency value, for example a frequency value minimum Fmin, equal to 3.1 GHz and to a first predetermined power value, for example a minimum power value equal to -42 dBm. Said waves are emitted then reflected inside the vehicle, and the first internal module INT1 receives in return reflected waves from which it extracts a CIR11a profile.
- T 1 is equal to 500 ms of UWB waves at a first predetermined frequency value, for example a frequency value minimum Fmin, equal to 3.1 GHz and to a first predetermined power value, for example a minimum power value equal to -42 dBm.
- Said waves are emitted then reflected inside the vehicle, and the first internal module INT1 receives in return reflected waves from which it extracts a CIR11a profile.
- step E22 If said CIR11a profile has peaks representative of the presence or movement of a child in the passenger compartment, then the presence detection is validated (step E22) and an alert is given (step E37b).
- This alert can take different forms, the user can receive a message on their smartphone, or the car horn or headlights can be triggered or even an emergency call (“e-call” in English) can be made. by the vehicle, if it has this feature.
- the peaks representative of the presence or the movement of a child are peaks whose profile or typical values have been predetermined beforehand.
- the profile CIR11 is compared with these said profiles in order to determine whether it contains a peak profile representative of the presence or the movement of a child in the passenger compartment.
- step E21 is repeated but this time at a different frequency, for example at a maximum frequency equal to 10.6 GHz but still at the minimum power of -42 dBm (step E23).
- the internal module INT1 therefore emits during the predetermined duration T1 waves at the maximum frequency and at the minimum power.
- the first internal module INT1 receives in return reflected waves from which it extracts a profile CIR11b.
- the presence detection is validated (step E22) and an alert is given (step E37b).
- step E21 and E23 are repeated but this time with a maximum power value Pmax equal to -38dBm.
- a minimum frequency value Fmin of emission in ultra-wideband makes it possible to effectively detect a "strong” movement, that is to say a displacement or a movement carried out at high amplitude of the order of a few centimeters per second, for example the movement of an arm or a leg. By detecting effectively is meant detection carried out with a high degree of reliability.
- a maximum frequency value Fmax of transmission in ultra-wideband makes it possible to detect a so-called "weak” movement, that is to say a displacement or a movement of low amplitude of the order of a few millimeters. per second, for example a movement of the rib cage due to breathing.
- a minimum frequency value Fmin does not make it possible to effectively detect a “weak” movement and a maximum frequency value Fmax does not make it possible to detect a “strong” movement.
- a minimum frequency value Fmin has the advantage of a high penetration rate in, for example, the fabrics or clothing worn by the child.
- a minimum power value Pmin or a minimum reception sensitivity in ultra-wideband means a detection zone of reduced dimensions in the passenger compartment.
- the disadvantages of low transmit power Pmin are also the low power of the reflected wave, and the high sensitivity of the emitted and reflected wave to obstacles. Thus, if the child is hidden behind an obstacle located in the path of the wave, that is to say in a so-called "indirect" link, it will not be detected.
- a maximum power value Pmax or maximum reception sensitivity in ultra-wideband means a detection zone of extended dimensions in the passenger compartment, high power of the reflected wave, less sensitivity of the wave vis- against obstacles than a low power value Pmin.
- the disadvantages of a high transmission power Pmax are for example a higher sensitivity with respect to events external to the vehicle.
- the reflected wave when emitted at maximum power, includes reflections due to obstacles or movements inside the vehicle V but also due to obstacles or movements outside the vehicle V.
- the detection method judiciously proposes alternating wave emissions from the interior modules with different power and frequency values in order to complement the advantages of each of these parameters.
- two power values Pmin, Pmax and two frequency values Fmin, Fmax are considered, thus forming four combinations of the torque comprising a power value and a frequency value as represented in table 1 below.
- the zone Zmin represents the zone of emission of the UWB waves emitted by the second internal module INT2 with a minimum transmission power Pmin, it is small in size and covers only part of the passenger compartment.
- the zone Zmax, larger than the zone Zmin represents the emission zone of the UWB waves emitted by the second internal module INT2 with a maximum emission power Pmax, it is of larger dimensions and covers not only the passenger compartment but a part of the bodywork surrounding the passenger compartment of the vehicle V.
- the applicant therefore proposes, in order to improve detection accuracy: a. not only to alternate the frequency and power values during transmissions made by the internal module, and b. but also to consider the impact of the movements detected outside the vehicle during the transmissions carried out by the internal module INT1 with the maximum power Pmax (that is to say at a power value or the movements carried out at the come to parasitize the waves reflected and received by the internal module), by removing them from the CIR profile of the waves received by said internal module thanks to the simultaneous detection of the same movements carried out by the external modules EXT1, EXT2, EXT3, EXT4.
- the internal module INT1 After the internal module INT1 has transmitted at minimum power Pmin with two values of minimum Fmin and maximum Fmax frequencies (E21, E23) and if no presence has been detected (E22, E24) at the inside the vehicle V, then simultaneously and for the first predetermined duration T1: a. the internal module INT1 emits waves at a maximum power Pmax, has a first frequency value, for example at the minimum frequency Fmin (step E25), and receives the reflected waves, thus determining a profile CIR11c (step E25), b. a first external module, EXT1, emits UWB waves which are received by a second module EXT4, said second module EXT4 determining a profile CIR14a of the waves thus received (step E11).
- the profile CIR14a of the waves received by the second external module EXT4, which represents the external environment of the vehicle V is compared to the profile CIR11c received by the internal module CIR11c (step E26) which represents the environment inside the vehicle V but likely to be interfered with by external events, the waves having been emitted at a maximum power Pmax.
- FIG. 5a is represented the profile CIR11c of the internal module INT1 of the reflected waves which it receives when they have been emitted at a maximum power Pmax and with a minimum frequency Fmin.
- the CIR11c profile presents two distinct peaks over time of different amplitudes, a first peak E at time t1, and a second peak C at time t2. These two peaks correspond to two distinct events, i.e. to two distinct movements. However, it is not known whether these movements were made inside the vehicle or outside the vehicle.
- FIG. 5b is shown the CIR14a profile of the second external module EXT4 of the waves it receives from the first module EXT1, following the simultaneous emission of waves between the first external module EXT1 and the internal module INT1.
- the two external modules EXT1, EXT4 being located on the same left side of the vehicle V, the profile CIR14a thus generated is representative of any movement or presence detected on this left side of the vehicle.
- Said CIR14 profile exhibits a peak E' at time t1.
- the profiles CIR11c and CIR14 therefore present an event E, E' at the same instant t1. Any change in amplitude of the CIR is called an event.
- steps E25, E26, E27 are repeated at the maximum frequency Fmax for the transmissions of the internal module INT 1 (step E28).
- the internal module INT1 and the first external module EXT1 transmit simultaneously and for the same first predetermined duration T1 UWB waves.
- the profile CIR11d of the reflected waves that the internal module INT 1 receives is compared (step E29) with the profile CIR14b of the waves received by the second external module EXT4 (step E13) which were transmitted by the first external module EXT1 .
- steps E25 to E30 that is to say the transmission alternations at a maximum power Pmax and at two frequency values Fmin , Fmax are repeated but this time for a second predetermined duration T2, greater than the first predetermined duration T1, of value equal for example to 2 seconds.
- the detection method is then repeated by considering longer wave emissions over time, and only with a maximum power value Pmax .
- a second predetermined duration T2 of increased value relative to the first predetermined duration T1 makes it possible to detect a complete breathing cycle, comprising an inspiration and an expiration.
- the first predetermined duration T 1 is more suitable for detecting the movement of a limb such as that of an arm
- the second predetermined duration T2 is more suitable for detecting the movement of breathing, when the previous steps carried out with the first duration predetermined T1 did not detect body movement inside the passenger compartment.
- the internal module INT1 emits for a second predetermined duration T2, waves directed mainly towards the interior of the vehicle V (but which can be interfered with by events located outside the vehicle), in UWB at maximum power Pmax and at minimum frequency Fmin.
- the first external module EXT1 also transmits ULB waves directed towards the outside of the vehicle V.
- the profile CIR11A of the waves reflected and received by the internal module INT1 is compared with the profile CIR14A of the waves received by the second external module EXT4 (step E32). If an event is detected (step E33) simultaneously on the two profiles CIR11A, CIR14A, then the peak corresponding to said event is removed from the profile CIR11A of the internal module INT1 for presence detection inside the vehicle V.
- step E37b If there is presence detection, the alert is emitted (step E37b), if there is no detection then the steps E31, E32, E33 are repeated but this time with a minimum frequency Fmin.
- the transmissions are carried out simultaneously (step E34 and E15) by the two internal modules INT1, and external EXT1, the profiles CIR11B and CIR14B of the internal module INT1 and of the second external module EXT4 are compared (step E35).
- step E36 if no presence is detected (step E36) inside the vehicle V, then the method stops (step E37a) otherwise the alert is triggered (step E37b ).
- the two external modules EXT1, EXT4 located on the same side of the vehicle V emit waves simultaneously.
- Each of the external modules receives waves from the other external module and the CIR profiles of the two modules are added together to produce a single CIR profile.
- Said CIR profile resulting from the sum of two CIR profiles of external modules is then compared to the CIR profile of the internal module.
- a third embodiment of the method according to the invention during transmission by the at least one external module EXT 1, EXT2, EXT3, EXT4, this is carried out at the same frequency as that used by the internal module INT1.
- the internal module INT 1 transmits at the minimum frequency Fmin
- the simultaneous transmission by at least an external module is performed at the same minimum frequency Fmin.
- the internal module INT1 transmits at the maximum frequency Fmax
- the simultaneous transmission by at least one external module is performed at the same maximum frequency Fmax.
- the invention therefore proposes in an ingenious way to use the ultra-wideband communication modules already present on the vehicle for hands-free access in order to detect the presence inside a locked vehicle.
- the ingenuity of the invention lies in the alternation of wave emission by the internal module at different frequency and power values, while taking into account the events potentially taking place outside the vehicle which are detected. thanks to the external modules and which interfere with detection by the internal module when the latter transmits at high power.
- the invention is particularly judicious, insofar as it requires only additional software means and therefore low cost.
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- Remote Sensing (AREA)
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- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
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Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280083165.2A CN118401976A (zh) | 2021-12-16 | 2022-11-24 | 用于检测锁定的车辆内部存在人的方法和相关联检测设备 |
| US18/717,629 US12602984B2 (en) | 2021-12-16 | 2022-11-24 | Method for detecting presence inside a locked vehicle and associated detection device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2113613 | 2021-12-16 | ||
| FR2113613A FR3130714B1 (fr) | 2021-12-16 | 2021-12-16 | Procede de detection de presence a l’interieur d’un vehicule verrouille et dispositif de detection associe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023110357A1 true WO2023110357A1 (fr) | 2023-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/083165 Ceased WO2023110357A1 (fr) | 2021-12-16 | 2022-11-24 | Procede de detection de presence a l'interieur d'un vehicule verrouille et dispositif de detection associe |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12602984B2 (fr) |
| CN (1) | CN118401976A (fr) |
| FR (1) | FR3130714B1 (fr) |
| WO (1) | WO2023110357A1 (fr) |
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| US20250216541A1 (en) * | 2023-12-29 | 2025-07-03 | Robert Bosch Gmbh | In-vehicle occupancy sensing via high-resolution ultra-wideband power delay profile |
| WO2025198783A1 (fr) * | 2024-03-21 | 2025-09-25 | Qorvo Us, Inc. | Système et procédés de génération d'estimation de réponse impulsionnelle de canal construite |
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| JP6317999B2 (ja) | 2014-05-14 | 2018-04-25 | 株式会社ブリヂストン | タイヤ情報送信装置 |
| DE102015216212A1 (de) | 2015-08-25 | 2017-03-02 | Continental Reifen Deutschland Gmbh | Verfahren zum Bestimmen einer Profiltiefe eines Reifenprofils, sowie Steuergerät hierfür |
| DE102016212136A1 (de) * | 2016-07-04 | 2018-01-04 | Laird Bochum GmbH | Verfahren und Vorrichtung zur Bestimmung einer Distanz sowie Fahrzeug |
| DE102018221981B4 (de) | 2018-12-17 | 2020-10-01 | Continental Automotive Gmbh | Verfahren, Steuereinrichtung und System zum Ermitteln von Profiltiefen von Reifen an Fahrzeugen |
| US11789135B2 (en) * | 2019-03-29 | 2023-10-17 | Robert Bosch Gmbh | Ultra-wideband intelligent sensing system and method for car states detection |
-
2021
- 2021-12-16 FR FR2113613A patent/FR3130714B1/fr active Active
-
2022
- 2022-11-24 CN CN202280083165.2A patent/CN118401976A/zh active Pending
- 2022-11-24 US US18/717,629 patent/US12602984B2/en active Active
- 2022-11-24 WO PCT/EP2022/083165 patent/WO2023110357A1/fr not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190143944A1 (en) * | 2017-11-15 | 2019-05-16 | Dnet Co., Ltd. | Apparatus for sensing remaining passenger in vehicle and generating alarm |
| WO2019238575A1 (fr) * | 2018-06-11 | 2019-12-19 | Iee International Electronics & Engineering S.A. | Procédé de détection robuste d'occupation de véhicule avec surveillance de signes vitaux |
| EP3742195A1 (fr) * | 2019-05-20 | 2020-11-25 | CUB Elecparts Inc. | Système et procédé de détection d'occupants d'un vehicule |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250216541A1 (en) * | 2023-12-29 | 2025-07-03 | Robert Bosch Gmbh | In-vehicle occupancy sensing via high-resolution ultra-wideband power delay profile |
| WO2025140938A1 (fr) * | 2023-12-29 | 2025-07-03 | Robert Bosch Gmbh | Détection d'occupation dans un véhicule par l'intermédiaire d'un profil de retard de puissance à bande ultra-large à haute résolution |
| US12541017B2 (en) * | 2023-12-29 | 2026-02-03 | Robert Bosch Gmbh | In-vehicle occupancy sensing via high-resolution ultra-wideband power delay profile |
| WO2025198783A1 (fr) * | 2024-03-21 | 2025-09-25 | Qorvo Us, Inc. | Système et procédés de génération d'estimation de réponse impulsionnelle de canal construite |
Also Published As
| Publication number | Publication date |
|---|---|
| US12602984B2 (en) | 2026-04-14 |
| US20250046176A1 (en) | 2025-02-06 |
| CN118401976A (zh) | 2024-07-26 |
| FR3130714B1 (fr) | 2023-11-03 |
| FR3130714A1 (fr) | 2023-06-23 |
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