Patents Assigned to Mitsubishi Logisnext Co., LTD.
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Patent number: 12162737Abstract: A control method for a mobile object automatically moving includes: causing the mobile object to move along a first path; causing a sensor of the mobile object to detect a position and an attitude of a target object while the mobile object is moving along the first path; setting a second path up to a target position at which predetermined position and attitude with respect to the target object are achieved based on the position and the attitude of the target object; switching the first path to the second path to move the mobile object along the second path; executing optimization calculation based on an evaluation function, to set a third path; and switching the second path to the third path to move the mobile object along the third path.Type: GrantFiled: March 18, 2022Date of Patent: December 10, 2024Assignee: MITSUBISHI LOGISNEXT CO., LTD.Inventors: Yasuo Fujishima, Ryoji Araki, Kazushige Takaki, Kenji Takao, Yohei Chishiki
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Publication number: 20240383735Abstract: An inclination handling method and system are provided. An unmanned forklift automatically measures inclination of floor surface at a stop position where it stops when loading, and, if necessary, shifts a travel center of the forklift at the stop position. The method includes: automatically measuring an inclination angle on floor surface in a left-right direction of the rack at the stop position using an inclinometer when the forklift loads a first tier of a multi-tiered rack at the stop position; determining whether a correction is necessary to shift a travel center of the unmannered forklift in the left-right direction of the rack at the stop position using measurement results; and when it is determined that the correction is necessary at the stop position, shifting the travel center at the stop position when the forklift loads a second tier or higher of the multi-tiered rack at the stop position.Type: ApplicationFiled: August 14, 2023Publication date: November 21, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Atsushi Minobe
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Publication number: 20240327182Abstract: A transport vehicle capable of side-shifting a cargo loading unit while referring to the positional relationship of cargo with respect to the cargo loading unit is provided. The transport vehicle 1 includes: forks 16; a side shift unit 19 that side-shifts the forks 16; a point group acquisition unit 22 that acquires a point group by horizontally irradiating cargo loaded on the forks 16 with a laser; an edge specifying unit that specifies a position of an edge of the cargo based on the acquired point group; a cargo position specifying unit; and a side shift controller that controls a side shift amount of the side shift unit 19. The cargo position specifying unit detects whether the positional relationship of the cargo with respect to the forks 16 changes based on the specified position of the edge of the cargo when the forks 16 are side-shifted.Type: ApplicationFiled: August 15, 2023Publication date: October 3, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Tetsuro Yoshida
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Publication number: 20240327179Abstract: A cargo handling system includes a truck stop area, a truck that stops within the truck stop area, and an unmanned carrier. The unmanned carrier includes a second cargo bed, a first laser sensor and a travel control part, and is configured to stop adjacent to the truck. The first laser sensor irradiates a laser obliquely rearward in a horizontal direction toward the truck and detects a side surface of a front panel or a side surface of a rear panel. The travel control part causes the unmanned carrier to stop when the side surface of the front panel or the side surface of the rear panel is detected.Type: ApplicationFiled: August 9, 2023Publication date: October 3, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Yuki Hira, Fumiyuki Shima, Takuya Kitamura, Kei Nagamura
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Publication number: 20240327183Abstract: A transport vehicle is provided, which is capable of adjusting a cargo loading position afterward even if a mobile shelf, a truck, or the like deviates from a predetermined position. The transport vehicle 1 includes: forks 16; a point group acquisition unit 22 that acquires a point group PG by horizontally irradiating a laser; and a distance specifying unit that specifies a distance in a left-right direction between the cargo loaded on the forks 16 and an object adjacent to a cargo loading position based on the acquired point group PG. The point group acquisition unit 22 is arranged at a position to be capable of irradiating the cargo loaded on the forks 16 and the cargo loading position with a laser.Type: ApplicationFiled: August 15, 2023Publication date: October 3, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Tetsuro Yoshida
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Publication number: 20240327180Abstract: A transport vehicle capable of detecting the position of a surrounding object without detecting the shape itself is provided. The transport vehicle includes a point group acquisition unit and an edge specifying unit. The point group acquisition unit acquires a point group PG by horizontally irradiating cargo loaded on a cargo loading unit and an object around the transport vehicle with light. The edge specifying unit analyzes the acquired point group PG using a frequency distribution with distances in left-right and front-rear directions as axes, and specifies sections S1, S2, S3, and S4 with frequencies, adjacent to an area with substantially no frequency, as positions of edges in the left-right direction or the front-rear direction of the cargo and the object around.Type: ApplicationFiled: August 17, 2023Publication date: October 3, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Tetsuro Yoshida
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Patent number: 12085937Abstract: An arithmetic device is an arithmetic device configured to output information to a moving object that automatically moves. The arithmetic device includes: a target object information acquisition unit configured to acquire, from a sensor provided in a place other than to the moving object, a detection result of position information of a target object, the position information being information related to position and orientation of the target object; a route setting unit configured to set, based on the position information of the target object, a route to a target position at which predetermined position and orientation relative to the target object are reached; and an information output unit configured to output information of the route to the moving object.Type: GrantFiled: February 22, 2021Date of Patent: September 10, 2024Assignee: MITSUBISHI LOGISNEXT CO., LTD.Inventor: Kenji Takao
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Patent number: 12055943Abstract: Pallet detection device that acquires point cloud data indicating a point cloud measured by a two-dimensional distance measurement device on a depth map; detects a straight line corresponding to a front surface of a pallet based on the point cloud in a region presumed to include the front surface of the pallet in the point cloud data; detects a line segment indicating the front surface of the pallet based on the straight line; acquires position and orientation of the pallet based on the line segment. Acquires one or more straight line candidates and assigns for each of the one or more straight line candidates a score to the point cloud and selects the straight line from the one or more straight line candidates based on a score accumulated value obtained by accumulating the score for the point cloud in the region presumed to include the front surface of the pallet.Type: GrantFiled: August 13, 2021Date of Patent: August 6, 2024Assignee: MITSUBISHI LOGISNEXT CO., LTD.Inventors: Kenji Takao, Takumi Fujita, Katsumasa Kitajima, Yusuke Kinouchi
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Publication number: 20240233166Abstract: A position estimating device is a position estimating device that estimates a position of a vehicle equipped with a camera and includes a position estimating unit configured to estimate the position of the vehicle by image processing of an image captured by the camera and a load control unit configured to control a processing load of the image processing by controlling an execution timing of the image processing performed by the position estimating unit and/or the image to be subjected to the image processing.Type: ApplicationFiled: October 16, 2023Publication date: July 11, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Katsumasa KITAJIMA, Yusuke KINOUCHI, Masahiro YAMADA, Takumi FUJITA, Takuya AKASHI
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Publication number: 20240228247Abstract: A position estimation system is a position estimation system for estimating a position of a forklift equipped with a camera and includes: a position estimation unit configured to estimate a position of the forklift on the basis of a feature included in an image captured by the camera; and an inclusion determination unit configured to calculate, on the basis of a position in a height direction of a mast with which the forklift is equipped, an inclusion range indicating a range in which the mast is in the image and determine to stop estimation of the position by using the position estimation unit when the inclusion range calculated exceeds an allowable range.Type: ApplicationFiled: October 16, 2023Publication date: July 11, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Katsumasa KITAJIMA, Yusuke KINOUCHI, Masahiro YAMADA, Takumi FUJITA, Takuya AKASHI
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Patent number: 12030758Abstract: The initial setting method for the unmanned forklift includes a step of acquiring a measurement value of floor surface inclination of a stop position where the unmanned forklift stops when the unmanned forklift unloads a palette on a rack, a step of setting the stop position where a predetermined inclination pattern is detected, as a precise adjustment position, from the acquired measurement value, a step of causing the unmanned forklift to unload the palette in accordance with an operation program, and measuring a deviation amount of the palette unloaded by the unmanned forklift, at the precise adjustment position, and a step of correcting a command value of the unmanned forklift at the stop position, based on the measured deviation amount.Type: GrantFiled: March 15, 2022Date of Patent: July 9, 2024Assignee: Mitsubishi Logisnext Co., Ltd.Inventors: Naoto Kawauchi, Kensuke Futahashi, Noriyuki Hasegawa, Masafumi Monchi, Koichi Saito
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Publication number: 20240211026Abstract: A display device is a display device worn on a head of a person, the display device including: a display unit having transparency and being capable of displaying image data; a target position acquisition unit acquiring position information of a conveyance destination of a cargo conveyed by an industrial vehicle; a position information acquisition unit acquiring position information of the industrial vehicle; and a control unit displaying the image data including a target placement range of the cargo based on information of a positional relationship between the person boarding the industrial vehicle and the industrial vehicle and the position information of the industrial vehicle and the conveyance destination, and a predicted placement range of the cargo when the cargo is unloaded from the industrial vehicle, the image data being displayed such that the target placement range included in the image data is superimposed on the target placement range in a real world viewable through the display unit.Type: ApplicationFiled: December 8, 2023Publication date: June 27, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Takuya AKASHI, Keisuke TSUKAHARA
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Publication number: 20240210186Abstract: A visibility support system includes: a positioning unit that estimates a position of an industrial vehicle; a route prediction unit that predicts a route of a part of the industrial vehicle or an object moving together with the industrial vehicle with reference to the position estimated, and calculates an interference position at which an obstacle interferes with the route on the basis of map data containing position information of the obstacle; a display unit configured to be worn on a head of a person, the display unit having transparency and being capable of displaying image data; and a control unit that displays image data of the route such that the image data is superimposed on a position of the route in a real world viewable through the display unit, the route starting from the part or the object at the position estimated and ending at the interference position.Type: ApplicationFiled: December 7, 2023Publication date: June 27, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Takuya Akashi, Keisuke Tsukahara
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Publication number: 20240149785Abstract: The disclosure provides a vehicle approach notification device and a picking truck. A vehicle approach notification device includes a first illumination portion provided on a cab capable of elevation, a second illumination portion provided on a vehicle body incapable of elevation, and a control unit that (1) turns on or blinks the first illumination portion and turns off the second illumination portion when a travel state of the vehicle body is backward travel and an elevation position is lower than a predetermined threshold value; (2) turns off the first illumination portion and turns on or blinks the second illumination portion when the travel state is backward travel or travel stop and the elevation position is equal to or higher than the threshold value; and (3) turns off the first illumination portion and the second illumination portion when the travel state is forward travel.Type: ApplicationFiled: February 13, 2023Publication date: May 9, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Ryohei Terao
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Patent number: 11970379Abstract: Provided is a cargo-handling vehicle allowing a reduction in production cost. A forklift, which is a cargo-handling vehicle, includes a driver's seat in which an operator sits, a front guard 51 provided in front of the driver's seat, a control system 20 provided between the driver's seat and the front guard 51, and a front cover 40 attached to the front guard 51. The front cover 40 includes a center cover 41 concealing a base portion of the control system 20, and a side cover 42 not concealing the base portion of the control system 20, and the side cover 42 is provided to the right or left, or both, of the center cover 41 and has a top positioned lower than a top of the center cover 41.Type: GrantFiled: November 20, 2019Date of Patent: April 30, 2024Assignee: Mitsubishi Logisnext Co., Ltd.Inventors: Kazushige Akita, Yusuke Inaba
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Publication number: 20240135573Abstract: A position estimating device is a position estimating device that estimates a position of a vehicle equipped with a camera and includes a position estimating unit configured to estimate the position of the vehicle by image processing of an image captured by the camera and a load control unit configured to control a processing load of the image processing by controlling an execution timing of the image processing performed by the position estimating unit and/or the image to be subjected to the image processing.Type: ApplicationFiled: October 15, 2023Publication date: April 25, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Katsumasa KITAJIMA, Yusuke KINOUCHI, Masahiro YAMADA, Takumi FUJITA, Takuya AKASHI
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Publication number: 20240132332Abstract: A position estimation system is a position estimation system for estimating a position of a forklift equipped with a camera and includes: a position estimation unit configured to estimate a position of the forklift on the basis of a feature included in an image captured by the camera; and an inclusion determination unit configured to calculate, on the basis of a position in a height direction of a mast with which the forklift is equipped, an inclusion range indicating a range in which the mast is in the image and determine to stop estimation of the position by using the position estimation unit when the inclusion range calculated exceeds an allowable range.Type: ApplicationFiled: October 15, 2023Publication date: April 25, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Katsumasa KITAJIMA, Yusuke KINOUCHI, Masahiro YAMADA, Takumi FUJITA, Takuya AKASHI
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Publication number: 20240044650Abstract: A bias estimation device includes a determination unit configured to determine whether a forklift is stationary based on a measurement value from a first sensor configured to detect information regarding movement of the forklift and a measurement value from a second sensor configured to detect information regarding a cargo handling device included in the forklift, an accumulation unit configured to accumulate an IMU measurement value that is a measurement value from an inertial measurement unit included in the forklift when the determination unit determines that the forklift is stationary and stop accumulation of the IMU measurement value when the determination unit determines that the forklift is not stationary, and a calculation unit configured to calculate a bias of the IMU measurement value based on the IMU measurement value accumulated in the accumulation unit.Type: ApplicationFiled: April 17, 2023Publication date: February 8, 2024Applicant: Mitsubishi Logisnext Co., Ltd.Inventors: Katsumasa KITAJIMA, Yusuke KINOUCHI, Masahiro YAMADA, Takumi FUJITA, Takuya AKASHI
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Publication number: 20230391594Abstract: A remote operation system 1 includes: an image capturing device 20, provided at a forklift F; a head-mounted type image display device 10, mounted to a head of an operator O; a command reception device 11, receiving a remote operation command by the operator O; and a synthesized remote image generation device 12A, obtaining a content of the remote operation command received by the command reception device 11, an action state of the forklift F acting according to the remote operation command, and a remote image captured by the image capturing device 20, and generating a synthesized remote image by synthesizing a command display image indicating the content of the remote operation command and an action display image indicating the action state of the forklift F into the remote image. The head-mounted type image display device 10 displays the generated synthesized remote image before eyes of the operator O.Type: ApplicationFiled: August 2, 2022Publication date: December 7, 2023Applicant: Mitsubishi Logisnext Co., Ltd.Inventor: Keisuke KIWATA
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Patent number: 11814274Abstract: A forklift includes: an armrest that is provided at a driver's seat of a vehicle and is moved between a non-operation position and an operation position by a movable mechanism; a steering member that outputs an operation signal in response to a steering operation; a steering device that changes a steering angle of steering wheels of the vehicle; a control unit that changes the steering angle according to the operation signal; and an armrest detection unit that detects whether the armrest is at the non-operation position or at the operation position in which when the armrest detection unit detects that the armrest is at the non-operation position, the control unit controls the steering device or the steering member such that the steering device does not change the steering angle even if the steering member is operated.Type: GrantFiled: December 27, 2018Date of Patent: November 14, 2023Assignee: Mitsubishi Logisnext Co., Ltd.Inventor: Hidekazu Yasukochi