EP3807736A1 - Cartographie et localisation simultanée d'un objet dans un environnement intérieur - Google Patents
Cartographie et localisation simultanée d'un objet dans un environnement intérieurInfo
- Publication number
- EP3807736A1 EP3807736A1 EP19745660.1A EP19745660A EP3807736A1 EP 3807736 A1 EP3807736 A1 EP 3807736A1 EP 19745660 A EP19745660 A EP 19745660A EP 3807736 A1 EP3807736 A1 EP 3807736A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mapping
- map
- obstacle
- generation
- location
- 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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0268—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means
- G05D1/0274—Control of position or course in two dimensions specially adapted to land vehicles using internal positioning means using mapping information stored in a memory device
-
- 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
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0238—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors
- G05D1/024—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors in combination with a laser
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0242—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using non-visible light signals, e.g. IR or UV signals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/003—Maps
Definitions
- the invention relates to the simultaneous mapping and localization of an object in an indoor environment, and more particularly to autonomous cartography and localization.
- the detection of the position of an object generally cannot rely on external services, such as the GPS-type navigation system.
- the signals emitted by the navigation systems are transmitted by satellites and are generally not received inside buildings.
- the accuracy obtained by navigation systems is from a few meters to a few tens of meters, and "indoor" location applications require a much finer resolution.
- beacons a network of transceivers
- the object to be located is capable of regularly emitting a radio signal which can be detected and identified by the network of beacons.
- each beacon is capable of measuring the duration of propagation of the signal from the object to the beacon. This propagation time can be converted into distance by knowing the speed of propagation of the signal.
- the position of the object is finally obtained by trilateration, by calculating the intersection of the circles centered on each tag and whose radius is equivalent to the distance from the object to the tag.
- This type of localization localization by arrival time (in English Time of Arrival positioning).
- This type of location is called arrival time difference localization (in English Time Difference of Arrival positioning).
- this technique also requires the deployment of a network of beacons, which can be expensive and is not always available in the buildings considered. This constitutes a major drawback of the state of the art.
- a camera will analyze the image of the environment but will not measure distances.
- a sonar or radar type device must be used. In this case, it is the echo of a transmitted signal which is analyzed, giving access to the distance of the obstacles.
- a more complex device must be put in place, either by placing the radar or the sonar on a rotary axis, or at the using a network of several sensors (antennas or microphones) allowing the analysis of the direction of arrival of the signal. All these devices are complex and expensive, which constitutes a major drawback of the state of the art.
- An object of the invention is a method of mapping and simultaneous localization of an object in an indoor environment comprising a generation of a map of the indoor environment and a determination of the displacement of the object according to data captured by the object, the mapping and localization process jointly generating the map and determining the displacement.
- the generation of the card at a given instant is a function of information relating to the movement detected at the given instant.
- the generation of the card comprises an obstacle detection as a function of a response signal received on a transmission by the object of a sounding signal.
- the generation of the card includes filtering in the response signal received from the part resulting from the sounding signal.
- the generation of the card comprises a position discrimination of an obstacle as a function of information relating to the displacement detected among several positions supplied as a function of the response signal received.
- the generated map is more precise because it is generated only from the echo resulting from the sounding signal.
- the generation of the card includes a weighting of an obstacle detected by a probability when an obstacle detection detects several obstacles in the response signal received on a transmission by the object of a sounding signal, the probability associated with an obstacle being a function, at the given time, of the amplitude of the response signal received resulting from the obstacle and the displacement information detected.
- the generation of the card comprises a division of the card into several cells, with an obstacle being associated with a cell.
- the card generation comprises an association with a cell of a card divided into several cells of the obstacle having the highest probability, when several obstacles are detected for the cell.
- the method according to the invention allows a better mapping of an environment comprising several obstacles (walls, furniture, etc.).
- the different steps of the method according to the invention are implemented by software or computer program, this software comprising software instructions intended to be executed by a data processor of a device forming part of an object to be located in an interior environment and being designed to control the execution of the various stages of this process.
- the invention therefore also relates to a mapping and location program comprising program code instructions for the execution of the steps of the mapping and location method when said program is executed by a processor.
- This program can use any programming language and be in the form of source code, object code or intermediate code between source code and object code such as in a partially compiled form or in any other desirable form.
- An object of the invention is also a device for simultaneously mapping and localizing an object in an indoor environment comprising a generator of a map of the indoor environment and an analyzer for moving the object as a function of data captured by the object, the mapping and location device jointly implementing the map generator and the displacement analyzer.
- An object of the invention is also a navigation device comprising
- a computer capable of determining a path based on the position of the object and the generated map provided by the mapping device and simultaneous location of an object in an indoor environment.
- An object of the invention is also an object comprising:
- the object includes a screen capable of reproducing in real time the map generated by the mapping device and simultaneous location of an object in an indoor environment.
- the object comprises a navigation device according to the invention.
- the object comprises a locomotor system including a controller capable of controlling at least one direction of the locomotor system as a function of the path determined by the navigation device.
- FIGS. 3a, 3b and 3c simplified illustrations of the implementation of the invention in the case of a complex environment, that is to say comprising several obstacles, respectively an impulse sounding response obtained when the object is located near two walls, a mapping of a complex environment (two walls) when the object is moved, an impulse sounding response in a complex case (3 obstacles);
- FIG. 1 illustrates a simplified diagram of the method of simultaneous mapping and localization according to the invention.
- the method of mapping and simultaneous location SLAM_P of an object O in an interior environment I comprises a generation MP_GN of a map of the interior environment and a determination MVT_DT of the displacement of the object as a function of data captured by the object of.
- the mapping and location method SLAM_P jointly performs the generation of the map MP_GN and the determination of the displacement MVT_DT.
- the generation of the MP_GN card at a given time t is a function of information relating to the displacement detected at the given time dp (t).
- This information relating to the movement comprises in particular at least one of the following data: direction of movement (in 2D or in 3D), speed of movement, starting point, position at time f, etc.
- the generation of the card MP_GN comprises an obstacle detection WL_DC0, WL_DC as a function of a response signal received r on a transmission by the object O of a sounding signal s.
- the generation of the card includes filtering in the response signal received rr from the part resulting from the sounding signal s.
- the FLT filtering therefore provides a filtered signal rf (s) in which the surrounding noises (not resulting from the sounding signal) have been suppressed.
- the filtered signal rf (s) corresponding to (x) reflection (s) and / or refraction (s) and / or diffraction (s) of the sounding signal emitted on one or more obstacles W.
- the generation of the MP_GN card comprises a DSCR discrimination of the position of an obstacle wd, wdi as a function of information relating to the detected displacement dp (t) among several positions ⁇ wdk ⁇ k supplied as a function of the response signal received rr.
- the generation of the MP_GN card in particular the DSCR discrimination or the obstacle detection WL_DC, raises an ambiguity on a position of an obstacle as a function of information relating to the detected displacement.
- the generation of the map MP_GN includes a weighting WGHT of an obstacle detected wdi by a probability pi when an obstacle detection WL_DC detects several obstacles in the response signal received rr to a transmission by the object of a sounding signal s.
- the probability pi associated with an obstacle wdi is a function, at the given time f, of the amplitude a of the response signal received resulting from the obstacle and of the displacement information detected.
- the generation of the MP_GN card comprises a DV division of the card into several mpq cells.
- An obstacle wd ⁇ e is associated with a cell mpq.
- map MP_GN comprises a DRW association with a rripp cell of a map mp divided into several cells of the obstacle wd j having the highest probability p ⁇ , when several obstacles ⁇ wd ⁇ are detected for the rripq cell.
- the determination of the displacement of the object MVT_DT includes a movement analysis capable of using data captured to provide information relating to the displacement of the object at a given time dp (t).
- the determination of the displacement of the MVT_DT object includes the reception of captured data CPT_REC coming from at least one sensor C.
- the sensor (s) C is (are), for example, at least one of the devices among the following: a motion sensor, in particular by infrared, an odometer, an accelerometer, a metric counter, a compass, etc.
- the determination of the displacement of the object MVT_DT comprises a triggering of a movement measurement CPT_REQ transmitting in particular a request rq to a sensor C.
- the sensor C requested transmits, in response to this request, data collected from from which the displacement dp (t) is determined.
- the sensor (s) C is (are) at least one of the following devices: a motion sensor, in particular by infrared, an odometer, an accelerometer, a metric counter, a compass, etc.
- the generation of card MP_GN comprises a reception SSR_REC of the response to the sounding signal r, resulting in particular from the meeting of the sounding signal with at least one obstacle W, such as a wall, a piece of furniture, or even in the case 3D mapping: a ceiling, a floor, etc.
- the generation of card MP_GN comprises an emission SS_EM of the sounding signal s.
- the sound signal can be radio, electromagnetic, infrared, sound, etc.
- a particular embodiment of the simultaneous mapping and location method is a mapping and location program comprising program code instructions for executing the steps of the simultaneous mapping and location method when said program is executed by a processor.
- Figures 2a, 2b, and 2c show simplified illustrations of the implementation of the invention in the case of an object taking three positions facing an obstacle.
- FIG. 2a illustrates a displacement of the object in the direction of the obstacle.
- the location sensor is an antenna 100 transmitting a radio signal.
- this signal s is transmitted in the environment 2, the propagation phenomena produce at least one echo r which is retransmitted towards the antenna 100.
- the antenna 100 can then receive this (these) echo (s) and the Mapping and localization device 12 (see FIG. 5) can analyze the duration of round trip transmission, and therefore the distance of obstacles 20.
- It is a "single antenna radar" operation.
- Object 1 is just an example of a wireless signal transmission and reception sensor. Other techniques could be used, such as a sound signal (sonar), or infrared, for example.
- the object 1 In the case where the object 1 provided with a single emission-reception sensor is directed in the direction of an obstacle 20, at each position pos1, pos2, pos3, the object 1 can emit a signal s. This signal is called a sounding signal. The object can then echo this signal after reflection or diffraction on the obstacle 20 for each of these emission positions pos1, pos2, pos3.
- Figure 2b illustrates impulse sounding responses r for the three positions.
- the responses r are represented on a graph having on the abscissa the instant of reception t and on the ordinate the amplitude a of the response received r.
- the mapping and location method combines this single-sensor mapping information with the internal information of movement of the object dp (t). This movement information can be obtained for example using an odometer or even using an accelerometer.
- FIG. 2c illustrates a location of the obstacle using the displacement information.
- Trilateration consists in calculating the intersection of three circles centered on positions pos1, pos2 and pos3, and whose radii correspond to the object-obstacle distances obtained for each position by sampling.
- Figure 2c illustrates the application of trilateration, by way of example, in a 2-dimensional situation. However, it can also be used in the case where localization is carried out in 3 dimensions. In this case, trilateration corresponds to evaluating an intersection of spheres.
- the mapping and location method includes a control of the object 1 (not illustrated) sending in particular to the locomotor device of the object a punctual change of direction command in order to to allow this ambiguity to be lifted.
- the example considered proposes to use the distance evaluations at 3 distinct points, but the trilateration can be carried out from distance evaluations carried out at any number of points at least equal to 2.
- the distance of the obstacles can also be evaluated continuously, and the obstacle location algorithm can choose to use all or part of the distance measurements made in the mapping history, associated with the relative positions of the moving object.
- Figures 3a, 3b and 3c show simplified illustrations of the implementation of the invention in the case of a complex environment, that is to say comprising several obstacles.
- FIG. 2c illustrates the case where the obstacle 20 to be identified is located in a precise point in space.
- the invention applies in the same way when it is the whole of environment 2 which must be mapped.
- an object 1 moves near an angle formed by two perpendicular walls.
- Figure 3a illustrates an impulse sounding response obtained when the object is located near two walls.
- the responses r are represented on a graph having on the abscissa the instant of reception t and on the ordinate the amplitude a of the response received r.
- object 1 Using its single-sensor sounding system, object 1 permanently receives an impulse sounding response r composed of two peaks: it is specular reflection on each of the walls.
- the impulse sounding response obtained at a given instant during displacement is illustrated by FIG. 3a.
- this impulse response to two peaks is represented by two circles centered on the position of the object and whose radii correspond to the distances measured between the object and each of the walls as shown Figure 3b.
- Figure 3b illustrates a map of a complex environment (two walls) when the object is moved. These two circles are represented for different positions of the object 1 during its movement: the dashed circle corresponds to the distance measured by reflection on the top wall 20- ! , and the solid circle corresponds to the distance measured by reflection on the right wall 20 2 .
- Object 1 is not represented but only its line of movement (curve in dashes-points).
- the mapping and rental process can use at least one method of accurately determining the position of the walls.
- DIV see Figure 1 the space of the environment map into small cells.
- the probability that a cell contains an obstacle (a wall, furniture) increases each time the cell is crossed by a distance measurement circle.
- the cells actually corresponding to an obstacle obtain a very high probability.
- the object can at any time produce a partial map of the knowledge of its environment by applying a threshold on the probabilities obtained in each cell.
- the accuracy of this method increases as the object moves through the environment and thus performs environmental surveys from different points of view. In particular, the movement in the environment makes it possible to remove any lateral ambiguities.
- mapping is only possible because the object integrates in the same process the knowledge of its own movement and the elements of probing the environment which it has.
- Figure 3c illustrates a survey impulse response in a complex case (3 obstacles).
- the environment can be very complex.
- all of the propagation phenomena can be at the origin of the retransmission of echoes: specular reflection, diffuse reflection, diffraction.
- the impulse response is not always composed of distinct peaks of echoes but may correspond to a continuous and decreasing profile representing the level of the decreasing diffuse echo ed as a function of the propagation delay with peaks corresponding to the main echoes ep k .
- An example of such a profile is shown in Figure 3c.
- the above mapping method can still be applied.
- the environment map is fed using continuous echo level disks (obtained from the impulse response).
- the probability that a cell on the environment map contains an obstacle increases with the echo level listed in this cell, by performing a summation function of these levels for different sounding positions.
- the function providing the probability of the presence of an obstacle in the environment map can take account of the different echo level profiles measured by the object, the relative position of the object when measuring this profile and the age of the profile measurement. This last point makes it possible to put more or less weight in the older measurements, and is particularly important in the case where the environment can be modified over time (for example in the case where other mobile objects are present in the 'environment).
- FIG. 4 illustrates a simplified diagram of an object according to the invention.
- a simultaneous mapping and localization device 12 of an object 1 in an interior environment 2 comprises a generator 120 of a map of the interior environment and an analyzer 121 of displacement of the object as a function of data captured by the object 1.
- the mapping and location device 12 jointly implements the generator of the card 120 and the displacement analyzer 121.
- Object 1 includes:
- the simultaneous mapping and location device 12 of the object 1 comprises a generator 120 of a map of the interior environment and an analyzer 121 of displacement of the object as a function of data captured by the object 1.
- the mapping and location device 12 jointly implements the generator of the card 120 and the displacement analyzer 121.
- the object 1 includes a screen 17 capable of reproducing in real time the map generated mp by the simultaneous mapping and location device 12 of an object in an indoor environment.
- the screen 17 is able to further reproduce on the reproduced map the position of the object 1 as a function of location data supplied by the mapping and location device 12.
- the object 1 includes a navigation device 15.
- the object 1 comprises a locomotor system 16 including a controller capable of controlling cmd (dr) at least one direction of the locomotor system 16 as a function of the route determined nvg by the navigation device 15.
- cmd cmd
- direction is understood a device d 'a vehicle or an autonomous robot in terms of movement capable of modifying the direction of movement, in particular the direction of the wheels for a vehicle or rolling robot.
- the generator of the card 120 at a given instant f is a function of information relating to the displacement detected at the given instant dp (t).
- This information relating to the movement comprises in particular at least one of the following data: direction of movement (in 2D or in 3D), speed of movement, starting point, position at time f, etc.
- the generator of the card 120 includes an obstacle detector (not shown) as a function of a response signal received r to a transmission by the object 1 of a sounding signal s.
- the generator of the card 120 includes a filter (not illustrated) extracting from the response signal received rr the part resulting from the sounding signal s.
- the filter therefore provides a filtered signal rf (s) in which the surrounding noises (not resulting from the sounding signal) have been suppressed.
- the filtered signal rf (s) corresponding to (x) reflection (s) and / or refraction (s) and / or diffraction (s) of the sounding signal emitted on one or more obstacles W.
- the generator of the card 120 comprises a discriminator (not illustrated) of the position of an obstacle wd, wdi as a function of information relating to the detected displacement dp (t) among several positions ⁇ wdk ⁇ k provided as a function of the response signal received rr.
- the generator of the card 120 in particular the discriminator or the obstacle detector, raises an ambiguity on a position of an obstacle as a function of information relating to the detected displacement.
- the generator of the card 120 includes a weighter (not illustrated) of an obstacle detected wdi by a probability pi when an obstacle detection WL_DC detects several obstacles in the response signal received rr on a transmission by the subject to a survey signal s.
- the probability pi associated with an obstacle wdi is a function, at the given time f, of the amplitude a of the response signal received resulting from the obstacle and of the displacement information detected.
- the generator of the card 120 includes a divider (not shown) of the card into several mpq cells.
- An obstacle wd j is associated with a cell mpq.
- the generator of the card 120 comprises a coupler (not illustrated) associating with a cell mpc j of a card mp divided into several cells of the obstacle wd ⁇ having the highest probability p ⁇ , when several obstacles ⁇ wd ⁇ are detected for the mpq cell.
- the object displacement analyzer 121 includes a motion analyzer (not illustrated) capable of using data captured to provide information relating to the movement of the object at a given time dp (t).
- the object movement analyzer 121 includes a receiver (not shown) of data received from at least one sensor 18.
- the sensor (s) 18 is (are), for example, at at least one of the following devices: a motion sensor, in particular by infrared, an odometer, an accelerometer, a metric counter, a compass, etc.
- the object movement analyzer 121 includes a trigger (not shown) for a measurement of motion transmitting in particular a rq request to a sensor 18.
- the requested sensor 18 transmits in response to this request data captured from from which the displacement dp (t) is determined.
- the sensor (s) 18 is (are) at least one of the following devices: a motion sensor, in particular by infrared, an odometer, an accelerometer, a metric counter, a compass, etc.
- the generator of the card 120 comprises the receiver 11 of the response to the sounding signal r, resulting in particular from the meeting of the sounding signal with at least one obstacle 20, such as a wall, a piece of furniture, or even in the case of 3D mapping: a ceiling, a floor, etc.
- the generator of the card 120 includes a transmitter 10 of the sounding signal s.
- the sound signal can be radio, electromagnetic, infrared, sound, etc.
- Object 1 is in particular a smartphone or a tablet, or a vehicle: bicycle, cart, transport cart in a factory, an office building ... but also an autonomous object of robot, land or air drone type ...
- a navigation device 15 comprises
- the invention also relates to a support.
- the information medium can be any entity or device capable of storing the program.
- the support may include a storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM or else a magnetic recording means, for example a floppy disk or a hard disk.
- the information medium can be a transmissible medium such as an electrical or optical signal which can be routed via an electrical or optical cable, by radio or by other means.
- the program according to the invention can in particular be downloaded from a network, in particular of the Internet type.
- the information medium can be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the process in question.
- module can correspond either to a software component or to a hardware component.
- a software component corresponds to one or more computer programs, one or more subroutines of a program, or more generally to any element of a program or of software capable of implementing a function or a function set as described above.
- a hardware component corresponds to any element of a hardware (or hardware) set capable of implementing a function or a set of functions.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Theoretical Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Educational Administration (AREA)
- Mathematical Physics (AREA)
- Acoustics & Sound (AREA)
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- Navigation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1855271A FR3081598A1 (fr) | 2018-06-15 | 2018-06-15 | Cartographie et localisation simultanee d'un objet dans un environnement interieur |
| PCT/FR2019/051206 WO2019239027A1 (fr) | 2018-06-15 | 2019-05-24 | Cartographie et localisation simultanée d'un objet dans un environnement intérieur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3807736A1 true EP3807736A1 (fr) | 2021-04-21 |
Family
ID=65951612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19745660.1A Pending EP3807736A1 (fr) | 2018-06-15 | 2019-05-24 | Cartographie et localisation simultanée d'un objet dans un environnement intérieur |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20210263531A1 (fr) |
| EP (1) | EP3807736A1 (fr) |
| FR (1) | FR3081598A1 (fr) |
| WO (1) | WO2019239027A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7055491B1 (ja) * | 2020-12-21 | 2022-04-18 | WaveArrays株式会社 | レーダ装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9103938B2 (en) * | 2011-05-06 | 2015-08-11 | Hadal, Inc. | Systems and methods for holographic simultaneous localization and mapping |
| AU2012376428B2 (en) * | 2012-04-05 | 2015-06-25 | Hitachi, Ltd. | Map data creation device, autonomous movement system and autonomous movement control device |
| FR3025325B1 (fr) * | 2014-09-01 | 2016-12-30 | Valeo Schalter & Sensoren Gmbh | Dispositif et procede de localisation et de cartographie |
| WO2018089703A1 (fr) * | 2016-11-09 | 2018-05-17 | The Texas A&M University System | Procédé et système de localisation et de cartographie simultanées, précises et à long terme avec détection d'orientation absolue |
-
2018
- 2018-06-15 FR FR1855271A patent/FR3081598A1/fr not_active Ceased
-
2019
- 2019-05-24 EP EP19745660.1A patent/EP3807736A1/fr active Pending
- 2019-05-24 WO PCT/FR2019/051206 patent/WO2019239027A1/fr not_active Ceased
- 2019-05-24 US US17/252,008 patent/US20210263531A1/en active Pending
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| Publication number | Publication date |
|---|---|
| FR3081598A1 (fr) | 2019-11-29 |
| WO2019239027A1 (fr) | 2019-12-19 |
| US20210263531A1 (en) | 2021-08-26 |
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