Abstract:
A robot is provided to run so that a trace of the robot efficiently covers a given area according to the detection of a boundary of the area. A spiral pattern running, wherein a radius of the spiral is gradually increased, is started at a desired location in the area and is paused upon the detection of a boundary wall by sensors. Then, a random pattern running, which includes turning to depart from the wall and running forward, is conducted. After the turning has been repeated a predetermined number of times through simulations, the spiral pattern running is resumed at a location spaced from the last turning spot by a predetermined distance or a predetermined length of running time.
Abstract:
A navigation apparatus reduces route search time while providing guidance in conformity with drivers' preferences, by selectively conducting either a full-range route search or a more limited, local area search, in accordance with detected conditions and responsive to occurrence of an off-route event. For example, the full-range route search is conducted pursuant to a determination that the vehicle has gone straight at a predetermined number of certain intersections where current guidance has directed a turn.
Abstract:
An individual guidance system for aircraft in an approach control area under automatic dependent surveillance which, by supplying the pilot with the required flight data automatically in units of micro air spaces, permits safe and accurate flight with little scope for human error, being an individual guidance system for aircraft in an approach control area under automatic dependent surveillance wherein the air-traffic control system divides the approach control area automatically into a group of micro air spaces, and establishes flight rules within the micro air spaces in order to guide aircraft by establishing no-fly air spaces. Then, at such time as a change has occurred in weather conditions or other data within the approach control area, it establishes in real time in the micro air spaces flight rules, estimated time of landing of the aircraft, estimated time when the aircraft will leave the approach control area and other data in such a manner as to reflect those details, and transmits the flight rules automatically to the system of a given aircraft when the aircraft reaches a position which corresponds to the micro air spaces. The air-traffic control system guides the aircraft in question in accordance with the flight rules which it has transmitted to the system of the aircraft, and the pilot pilots the aircraft.
Abstract:
A method and system for navigating automatic guided vehicles (AGVs) through a workplace having intelligible areas provides multi-vehicle traffic control. A guidance apparatus conveys a plurality of guidance signals, and a plurality of radio frequency tags (RF tags) are provided along the path over which the vehicle travels. Each RF tag is capable of conveying at least one of a plurality of unique radio frequency signals in response to electromagnetic excitation fields. A controller mounts on the vehicles, and includes an AGV computer, a sensor, a radio frequency identification (RFID) reader, and an RF modem for broadcasting messages to other vehicles to facilitate multi-vehicle traffic control. RF tags positioned for identifying characteristic area conditions related to the path of the vehicle reduce the need for custom modifications to guidance software on the host or AGV computers when operating in new environments, e.g., a new factory floor layout. The controller is responsive to at least one of the plurality of guidance signals received by the sensor and at least one characteristic area condition identified by the RF tag reader coupled to the AGV computer for initiating a predetermined action for navigating the vehicle through the area.
Abstract:
A method and apparatus for collecting and analyzing soil chemistry information from a tract of land is described. An information management system receives reference signals from a global positioning system from which soil sample collection coordinate location information may be calculated and utilized to generate a soil sampling plan for the tract of land. The information management system guides the collection of soil samples according to the soil sampling plan and records geo-referenced soil sample collection information which may be merged with the results of laboratory analysis performed on the soil samples to generate accurate geo-referenced soil chemistry information.
Abstract:
A method and apparatus for navigating a remotely guided brush cutting, chipping and clearing apparatus, dependent upon remote positioning data and radio communication signals, having an apparatus locator system for determining the location of the apparatus and a guidance system for navigating and maintaining the apparatus in a desired direction of travel along a particular line of travel and for traversing a plurality of specific data points along the particular line of travel, relative to the surface of the earth.
Abstract:
An autonomous vehicle capable of traveling and stopping parallel to a wall includes right and left driving wheels receiving driving force to be driven independently, a dependent wheel for supporting the autonomous vehicle together with the driving wheels for a straightforward movement and a U-turn, a motor for driving the right and left driving wheels, a coupling mechanism for transmitting the rotation of the motor to the driving wheels, an encoder for detecting the rotation amount and velocity of the motor, a gyro sensor for detecting the direction of the autonomous vehicle, a distance measurement sensor for measuring the distance to a right or left object of interest, and a controller for controlling the autonomous vehicle through the motor and the driving wheels. The controller receives the output of the encoder, calculates a control value for the driving wheels based on the rotation amount and rotation velocity of the motor, and determines that the autonomous vehicle travels parallel to the wall if the ratios of a time period to turn the autonomous vehicle rightward and a time period to turn the vehicle leftward in a prescribed time period are equal based on the control value.
Abstract:
A road for guiding an automatically driven vehicle comprises a train of N-polarity magnetic nails arranged along a main path, and a train of S-polarity magnetic nails arranged on a branching path. An automatically driven motor vehicle, including magnetic sensors, runs and is automatically steered by detecting the magnetic nails. The vehicle can be precisely controlled to follow a desired running direction by detecting the presence of magnetic nails with the magnetic sensors. More specifically, at an upstream side of a branch point, when the desired direction is along a main path direction, a driving (steering control) mode of the vehicle is selected in which the magnetic sensors detect N-polarity magnetic nails. Similarly, when the desired direction of travel is along a path which branches off from the main path, a driving (steering control) mode is selected in which the magnetic sensors detect S-polarity magnetic nails. In this manner, the motor vehicle can be automatically driven even at branch points in the road, and wherein the branch points also comprise magnetic nails installed therein at predetermined intervals.
Abstract:
An automatic travel guiding device is a combination of a navigation control unit and automatic travel control unit that judges the position of a vehicle on a travelling road on the basis of sensed circumstances of the road extending ahead of the vehicle and correcting a current position of the vehicle to a corresponding position on the road map. The device includes means for correcting road circumstances on the basis of road data read from map-information storage medium according to the current position of the vehicle to correlatively increase both the current position accuracy and the travel control accuracy according to travel guiding instruction for following a target course preset on a road map by sensing actual road conditions and to realize automatic travel control at an increased accuracy.
Abstract:
A method and apparatus provide access to an interactive product to a passenger of a vehicle while limiting access to the interactive product to the driver of the vehicle. At least one control device is provided for allowing user interaction with the interactive product. Interaction with the interactive product via the at least one control device is inhibited while the vehicle is moving. An access device is provided which must be employed in conjunction with the at least one control device to enable user interaction with the interactive product while the vehicle is moving.