Abstract: A transport facility includes a plurality of transport vehicles that transport articles and a control system that controls the transport vehicles. Each transport vehicle includes a transporter. The control system performs, in response to electric power supply to the transport vehicles being interrupted, an interruption information obtaining process of obtaining an operating state information of each transport vehicle as preliminary operating state information. The control system performs, after the electric power supply is restored, a post-restoration information obtaining process of obtaining the operating state information of each transport vehicle as post-restoration operating state information. The control system performs an automatic recovery target determination process of determining whether each transport vehicle is a target of automatic recovery based on a result of comparison between the preliminary operating state information and the post-restoration operating state information.

Abstract: A speaker position determination apparatus for determining a position of a speaker built into a headrest includes: a camera configured to capture an image of the headrest; and a position determination device configured to determine the position of the speaker based on the image captured by the camera, wherein the position determination device determines the position of the speaker based on a feature part of the headrest in the image.

Abstract: An on-vehicle sound control system includes: a speaker configured to output canceling sound for canceling noise; a controller configured to control the speaker; and a distance estimation device configured to estimate a distance between the speaker and an ear of an occupant. The controller includes a control filter configured to generate a control signal for controlling the speaker and a control signal correction unit configured to correct the control signal based on the distance and to output a corrected control signal, and the controller controls the speaker based on the corrected control signal.

Abstract: A transport facility includes a monitoring system. The monitoring system includes a travel data obtainer, a connection data obtainer, a display, and a controller. The travel data obtainer obtains travel data including position information and time information in a manner associated with each other. The position information indicates a position of a transport vehicle. The connection data obtainer obtains connection data including connection destination information and the time information in a manner associated with each other. The connection destination information indicates a relationship between a vehicle communicator and a destination wireless transmitter-receiver to which the vehicle communicator is connected. The controller performs a display process of causing the display to display connection information based on the travel data and the connection data.

Abstract: A vehicle control apparatus having an unintended start suppression function of suppressing an unintended start is provided. The apparatus comprises a distance detection unit configured to detect a distance to an obstacle; a speed detection unit configured to detect a speed of an ego-vehicle; and a suppression support unit configured to perform suppression support for the speed of the ego-vehicle based on the speed and the distance to the obstacle, wherein the suppression support unit changes an operation distance for performing the suppression support depending on whether the unintended start suppression function has operated.

Abstract: An article transport facility includes a transport vehicle and a control device. The control device and the transport vehicle are configured to be communicable with each other in both directions via any of a plurality of access points. The control device transmits a command for communication recovery to the transport vehicle, as communication from the control device to the transport vehicle is valid, when communication from the transport vehicle to the control device is interrupted.

Abstract: An active noise control device includes a control signal generating unit including a first adaptive filter configured to generate a control signal by performing a filtering process on a reference signal corresponding to noise, an identifying unit configured to identify a peak frequency in an impedance frequency characteristic of an actuator, a peak frequency storage unit configured to store an initial peak frequency of the actuator, a first determination unit configured to determine whether or not a difference between the peak frequency currently identified and the initial peak frequency is greater than or equal to a threshold value, and a control unit configured to change a characteristic of the control signal generated by the control signal generating unit when the first determination unit determines that the difference is greater than or equal to the threshold value.

Abstract: An active noise control device includes a basic signal generating unit configured to generate a basic signal corresponding to a resonance frequency of a vibration sensor, a first adaptive filter configured to generate a sensor resonance simulation signal simulating a signal acquired while the vibration sensor is resonating by performing a filtering process on the basic signal, a computation unit configured to calculate a second reference signal that is a difference between a first reference signal acquired by the vibration sensor and the sensor resonance simulation signal, and a second adaptive filter configured to generate a control signal by performing a filtering process on the second reference signal.

Abstract: An active noise control device includes a first adaptive filter configured to generate a control signal by performing a filtering process on a reference signal corresponding to noise, and a first filter coefficient updating unit configured to update a filter coefficient of the first adaptive filter based on based on the reference signal and an added error signal acquired by adding a first error signal acquired by detecting residual noise by a first microphone and a second error signal acquired by detecting residual noise by a second microphone.

Abstract: An active noise control device includes a determination unit configured to determine whether an abnormality has occurred in an acceleration sensor based on a direct-current component of a reference signal acquired by the acceleration sensor attached to a vehicle, and a control unit configured to, when the determination unit determines that an abnormality has occurred in any of a plurality of the acceleration sensors, stop generation of the control signal based on the reference signal acquired by the acceleration sensor that has been determined to have the abnormality, and stop updating a filter coefficient of an adaptive filter configured to perform the filtering process on the reference signal acquired by the acceleration sensor that has been determined to have no abnormality.

Abstract: An active noise control device includes a first adaptive filter configured to generate a control signal by performing a filtering process on a reference signal corresponding to noise, and a first filter coefficient updating unit configured to update a filter coefficient of the first adaptive filter based on based on the reference signal and an added error signal acquired by adding a first error signal acquired by detecting residual noise by a first microphone and a second error signal acquired by detecting residual noise by a second microphone.

Abstract: An active noise control device includes a determination unit configured to determine whether an abnormality has occurred in an acceleration sensor based on a direct-current component of a reference signal acquired by the acceleration sensor attached to a vehicle, and a control unit configured to, when the determination unit determines that an abnormality has occurred in any of a plurality of the acceleration sensors, stop generation of the control signal based on the reference signal acquired by the acceleration sensor that has been determined to have the abnormality, and stop updating a filter coefficient of an adaptive filter configured to perform the filtering process on the reference signal acquired by the acceleration sensor that has been determined to have no abnormality.

Abstract: An active noise control device includes a control signal generating unit including a first adaptive filter configured to generate a control signal by performing a filtering process on a reference signal corresponding to noise, an identifying unit configured to identify a peak frequency in an impedance frequency characteristic of an actuator, a peak frequency storage unit configured to store an initial peak frequency of the actuator, a first determination unit configured to determine whether or not a difference between the peak frequency currently identified and the initial peak frequency is greater than or equal to a threshold value, and a control unit configured to change a characteristic of the control signal generated by the control signal generating unit when the first determination unit determines that the difference is greater than or equal to the threshold value.

Abstract: An active noise control device includes a basic signal generating unit configured to generate a basic signal corresponding to a resonance frequency of a vibration sensor, a first adaptive filter configured to generate a sensor resonance simulation signal simulating a signal acquired while the vibration sensor is resonating by performing a filtering process on the basic signal, a computation unit configured to calculate a second reference signal that is a difference between a first reference signal acquired by the vibration sensor and the sensor resonance simulation signal, and a second adaptive filter configured to generate a control signal by performing a filtering process on the second reference signal.

Abstract: A vehicle control apparatus having an unintended start suppression function of suppressing an unintended start is provided. The apparatus comprises a distance detection unit configured to detect a distance to an obstacle; a speed detection unit configured to detect a speed of an ego-vehicle; and a suppression support unit configured to perform suppression support for the speed of the ego-vehicle based on the speed and the distance to the obstacle, wherein the suppression support unit changes an operation distance for performing the suppression support depending on whether the unintended start suppression function has operated.

Abstract: An active vibration noise control apparatus is provided. When a vehicle speed changes thereby to change frequency characteristics (peak-amplitude frequency) of vibration noise, the active vibration noise control apparatus refers to a vehicle speed versus frequency correspondence table representing a correspondence relation between a vehicle speed of a vehicle and a frequency of a reference signal, and changes the frequency of the reference signal that is used by an adaptive notch filter.

Abstract: A vehicular active vibrational noise control apparatus includes an amplitude limiter for limiting the amplitude of a canceling signal based on a signal level of an audio signal, and a vehicle speed detector for detecting the vehicle speed of a vehicle, which incorporates therein the vehicular active vibrational noise control apparatus. The amplitude limiter changes an amplitude limitation rule, which represents a relationship of a limiting value for the amplitude of the canceling signal to the signal level, depending on the vehicle speed, and limits the amplitude of the canceling signal based on the limiting value determined according to the amplitude limitation rule.

Abstract: An active vibration noise control apparatus uses an adaptive control process, which predicts rear road wheel noise canceling sounds by correcting a front road wheel reference signal or a rear road wheel reference signal with a corrective filter, based on different characteristics of front road wheel suspensions and rear road wheel suspensions.

Abstract: An ANC apparatus using so-called adaptive control is provided with a cancellation sound output means which outputs front wheel cancellation sound that cancels front wheel vibration noise due to front wheel vibration at a position to be silenced on the basis of a front wheel reference signal, and outputs rear wheel cancellation sound that cancels rear wheel vibration noise due to predicted rear wheel vibration at the position to be silenced on the basis of a rear wheel reference signal, and a turning state detection means which detects a turning state of a vehicle. When a difference in travel trajectory between a front wheel and a rear wheel is detected on the basis of the turning state, the cancellation sound output means suppresses the output of the rear wheel cancellation sound.

Abstract: An active noise control device detects composite vibration of a vibration transmitting route to which both vibration of a rotating body caused by generation or transmission of drive force of a vehicle and vibration of a wheel generated by contact between the wheel and a road surface are transmitted. A first reference signal for defining a reference waveform of a canceling sound for canceling vibration noise in a vehicle interior is generated based on the composite vibration. The component of the canceling sound for canceling vibration noise of the rotating body is removed from the first reference signal to generate a second reference signal for defining a reference waveform of the canceling sound for canceling vibration noise of the wheel. The canceling sound is outputted based on the second reference signal.