A method for time synchronization in a vehicle may include transmitting, by a satellite navigation device to a controller and at least one LiDAR device, a UTC and a PPS signal. The satellite navigation device may have a first clock. The method may include synchronizing, by the controller, a second clock of the controller with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by the at least one LiDAR device, a third clock of the at least one LiDAR device with the first clock of the satellite navigation device based on the PPS signal and the UTC. The method may include synchronizing, by at least one camera, a fourth clock of the at least one camera with the second clock of the controller.

Integrated Visual Geo-referencing Target Unit ABSTRACT A georeferencing target unit including: a generally planar top surface including a visual marker structure on the top surface, dimensioned to be observable at a distance by a remote visual capture device; an internal GPS tracking unit tracking the current position of the target unit; a microcontroller and storage means for storing GPS tracking data; and wireless network interconnection unit for interconnecting wirelessly with an external network for the downloading of stored GPS tracking data; a power supply for driving the GPS tracking unit, microcontroller, storage and wireless network interconnection unit, a user interface including an activation mechanism for activating the internal GPS tracking unit to track the current position of the target unit over an extended time frame and store the tracked GPS tracking data in the storage means.

The present invention relates to a multimodal sensing positioning system orientated to a high-risk production environment, the positioning system comprising: at least one positioning terminal, configured to be worn by a to-be-positioned subject and use at least one positioning technique to conduct multimodal sensing positioning so as to identify a current location information of the subject in the high-risk production environment; and a monitoring terminal, communicating with the positioning terminal so as to remotely monitor the current location of the subject. The present invention improves positioning precision while ensuring realtimeness of multimodal positioning.

A refuse vehicle includes a chassis supporting a plurality of wheels and a vehicle body. The vehicle body defines a receptacle for storing refuse. A lifting system is movable between a first position and a second position vertically offset from the first position. A processing unit is in communication with a first sensor having a first field of view and a second sensor having a second field of view. The processing unit activates the second sensor upon receiving an indication, from the first sensor, that an indicator is present within the second field of view. In some embodiments, the indicator is the presence of a positive object, like a waste container. In other embodiments, the indicator is the omission of an object (e.g., no container is detected) within the field of view.

Integrated Visual Geo-referencing Target Unit ABSTRACT A georeferencing target unit including: a generally planar top surface including a visual marker structure on the top surface, dimensioned to be observable at a distance by a remote visual capture device; an internal GPS tracking unit tracking the current position of the target unit; a microcontroller and storage means for storing GPS tracking data; and wireless network interconnection unit for interconnecting wirelessly with an external network for the downloading of stored GPS tracking data; a power supply for driving the GPS tracking unit, microcontroller, storage and wireless network interconnection unit, a user interface including an activation mechanism for activating the internal GPS tracking unit to track the current position of the target unit over an extended time frame and store the tracked GPS tracking data in the storage means.

According to one or more of the embodiments herein, systems and techniques for satellite relaying for geolocation and mitigation of Global Navigation Satellite System (GNSS) denial are provided. In one embodiment, a method comprises: receiving, at a processing device from a communication satellite along a communication path, a message initiated by a transmitting device and indicating a transmission time, the communication path having a target device with an unknown distance to the communication satellite; determining a reception time upon receiving the message, (the processing device and the transmitting device have synchronized clocks); determining a time difference between the transmission time and the reception time; calculating a distance between the communication satellite and the target device based on a portion of the determined time difference associated with only traversal of a portion of the communication path between the communication satellite and the target device; and performing action(s) based on the distance.

A usage recordal system for a towed vehicle includes a distance measurement sensor for measuring data representative of distance travelled by the towed vehicle, a road surface quality sensor for measuring data representative of road surface quality for the measured distance travelled by the towed vehicle, and a processor for receiving the data representative of distance travelled by the towed vehicle and the data representative of road surface quality for the measured distance travelled by the towed vehicle and for combining the data to provide data indicative of the distance travelled by the towed vehicle over a variety of road surface conditions.

According to one or more of the embodiments herein, systems and techniques for satellite relaying for geolocation and mitigation of Global Navigation Satellite System (GNSS) denial are provided. In one embodiment, a method comprises: receiving, at a processing device from a communication satellite along a communication path, a message initiated by a transmitting device and indicating a transmission time, the communication path having a target device with an unknown distance to the communication satellite; determining a reception time upon receiving the message, (the processing device and the transmitting device have synchronized clocks); determining a time difference between the transmission time and the reception time; calculating a distance between the communication satellite and the target device based on a portion of the determined time difference associated with only traversal of a portion of the communication path between the communication satellite and the target device; and performing action(s) based on the distance.

A refuse vehicle includes a chassis supporting a plurality of wheels and a vehicle body. The vehicle body defines a receptacle for storing refuse. A lifting system is movable between a first position and a second position offset from the first position. A processing unit is in communication with a first sensor having a first field of view and a second sensor having a second field of view. The processing unit activates the second sensor upon receiving an indication, from the first sensor, that an indicator is present within the first field of view. In some embodiments, the indicator is the presence of a positive object, like a waste container. In other embodiments, the indicator is the omission of an object (e.g., no container is detected) within the field of view.

In one embodiment, a navigation system may include at least one self-describing fiducial with a communication element to communicate navigation state estimation aiding information comprising a geographic position of the self-describing fiducial with respect to one or more coordinate systems and a first navigating object to receive navigation information from an exterior system, receive navigation state estimation aiding information from the self-describing fiducial, and compare the navigation information received from the exterior system to the navigation state estimation aiding information to improve navigation parameters of the first navigating object.