Abstract: An inertial measurement unit (IMU) device includes an IMU sensor, a controller, a temperature sensor electrically connected to the controller, a heat source, and a heat conductive member. The controller is configured to, in response to a temperature of the IMU sensor detected by the temperature sensor falling below a threshold temperature, control the heat source to generate heat. The heat conductive member is configured to transfer heat from the heat source to the IMU sensor, and includes an electrically insulating and thermally conductive material.

Abstract: An inertial measurement unit (IMU) device includes a circuit board assembly including a rigid circuit board and a flexible circuit board, an IMU sensor disposed on the rigid circuit board, and a heat preservation system. The IMU sensor is electrically connected to an external element through the flexible circuit board to transmit at least one of a signal or power between the IMU sensor and the external element. The heat preservation system includes a heat source, a heat preservation body with a receiving space to accommodate the IMU sensor, and a heat conductive member configured to transfer heat from the heat source to the IMU sensor to maintain the IMU sensor at a preset temperature. The heat conductive member includes an electrically insulating and thermally conductive silicone.

Abstract: A thermal regulation system includes an inertial measurement unit (IMU), one or more temperature adjusting devices in thermal communication with the IMU, and configured to adjust a temperature of the IMU from an initial temperature to a predetermined temperature, a filler provided in a space between the IMU and at least one temperature adjusting device of the one or more temperature adjusting devices, and a shared substrate configured to bear a weight of the IMU and the one or more temperature adjusting devices. The shared substrate includes a metallic board.

Abstract: A thermal regulation system includes a sensor, one or more temperature adjusting devices, and a filler provided in a space between the sensor and at least one of the one or more temperature adjusting devices. The one or more temperature adjusting devices are (1) in thermal communication with the sensor, and (2) configured to adjust a temperature of the sensor from an initial temperature to a predetermined temperature at a rate of temperature change that meets or exceeds a threshold value.

Abstract: A method for operating a mobile platform includes detecting a malfunction in a first sensor communicating with a sensor controller associated with the mobile platform, and, in response to detecting the malfunction in the first sensor, eliminating the first sensor from a sensor data source for controlling the mobile platform, enabling a second sensor to be in the sensor data source, continuing to receive and evaluate data from the first sensor, and, in response to not detecting an anomaly in the data from the first sensor, restoring the first sensor back into the sensor data source.

Abstract: An inertial measurement unit (IMU) device includes a circuit board assembly including a rigid circuit board and a flexible circuit board, an IMU sensor disposed on the rigid circuit board, and a heat preservation system. The IMU sensor is electrically connected to an external element through the flexible circuit board to transmit at least one of a signal or power between the IMU sensor and the external element. The heat preservation system includes a heat source, a heat preservation body with a receiving space to accommodate the IMU sensor, and a heat conductive member configured to transfer heat from the heat source to the IMU sensor to maintain the IMU sensor at a preset temperature. The heat conductive member includes an electrically insulating and thermally conductive silicone.

Abstract: A method for operating a mobile platform includes detecting a malfunction in a first sensor communicating with a sensor controller associated with the mobile platform, and, in response to detecting the malfunction in the first sensor, eliminating the first sensor from a sensor data source for controlling the mobile platform, enabling a second sensor to be in the sensor data source, continuing to receive and evaluate data from the first sensor, and, in response to not detecting an anomaly in the data from the first sensor, restoring the first sensor back into the sensor data source.

Abstract: An inertial measurement unit includes a sensor and a heat preservation system. The heat preservation system includes a heat preservation body and a heat source. The sensor is positioned on the heat preservation body. The heat source is configured to generate heat. The heat preservation body is configured to transfer the heat from the heat source to the sensor to maintain a preset temperature in a space surrounding the sensor.

Abstract: A method for operating a mobile platform includes selecting a first sensor associated with a higher weight as a selected sensor among at least two sensors, the weight is among a plurality of weights assigned to the sensors associated with a statistical weight function; detecting a malfunction in the first sensor communicating with a sensor controller associated with the mobile platform, and switching to a second sensor associated with a lower weight as the selected sensor to communicate with the sensor controller based upon the detecting.

Abstract: A method for tracking a target object using a tracking device includes obtaining an estimated location of a target object and a correction measurement, determining, according to the estimated location of the target object and the correction measurement, a corrected location of the target object and a corrected location of the tracking device, determining, based on the corrected location of the target object and the corrected location of the tracking device, a position of the tracking device relative to the target object, and adjusting, according to a predetermined distance between the tracking device and the target object, the position of the tracking device relative to the target object such that the position of the tracking device relative to the target object satisfies the predetermined distance.

Abstract: A control method includes obtaining a linear speed of one operation member of a plurality of operation members of an agricultural mechanical device when the agricultural mechanical device is making a curvilinear movement, determining an operation rate of the one operation member according to the linear speed of the one operation member, and controlling the one operation member to perform an operation according to the operation rate of the one operation member. The plurality of operation members are located at different positions in a direction perpendicular to a moving direction of the agricultural mechanical device.

Abstract: An apparatus for determining an altitude of a mobile unit includes one or more processors individually or collectively configured to obtain local measurement data comprising a local atmospheric pressure at a location of the mobile unit, obtain reference measurement data comprising a reference atmospheric pressure at a location of a reference unit that is movable, and determine the altitude of the mobile unit based on the local measurement data and the reference measurement data.

Abstract: A method for bus addressing includes receiving handshaking information from a component of a control system of an unmanned aerial vehicle (UAV), allocating a communication address to the component through a field bus, receiving a user instruction indicative of an index number of the component through a configuration interface, and establishing a correlation between a physical address of the component, the communication address, and the index number. The index number is configured to identify the component.

Abstract: A positioning system includes a base station and a tracking device. The base station is configured to receive an estimated location of the base station at a receiver coupled to the base station and determine a correction measurement based on the estimated location of the base station and a known location of the base station. The tracking device is configured to obtain an estimated location of a target object, receive an estimated location of the tracking device at a receiver coupled to the tracking device, determine a relative position between the target object and the tracking device based on the estimated location of the target object, the estimated location of the tracking device, and the correction measurement, and control a movement of the tracking device according to the relative position.

Abstract: An unmanned aircraft navigation system includes a controller and at least one measurement component coupled to the controller. The at least one measurement component includes at least two sensors with one of the at least two sensors being redundant sensor for another one of the at least two sensors. The at least one measurement component is configured to provides data measured by the at least two sensors to the controller.

Abstract: An inertial measurement unit includes a sensor and a heat preservation system. The heat preservation system includes a heat preservation body and a heat source. The sensor is positioned on the heat preservation body. The heat source is configured to generate heat. The heat preservation body is configured to transfer the heat from the heat source to the sensor to maintain a preset temperature in a space surrounding the sensor.

Abstract: An unmanned aircraft navigation system includes a master navigation device, a slave navigation device, and a controller. The master navigation device includes at least one measurement component. The slave navigation device includes at least one measurement component configured to provide a redundancy support for the at least one measurement component of the master navigation device. The controller is configured to effect a navigation using the at least one measurement component of the master navigation device and the at least one measurement component of the slave navigation device.

Abstract: An inertial measurement unit includes a sensor and a heat preservation system. The heat preservation system includes a heat preservation body and a heat source. The sensor is positioned on the heat preservation body. The heat source is configured to generate heat. The heat preservation body is configured to transfer the heat from the heat source to the sensor to maintain a preset temperature in a space surrounding the sensor.

Abstract: A method for bus addressing includes receiving handshaking information from a component of a control system of an unmanned aerial vehicle (UAV), allocating a communication address to the component through a field bus, receiving a user instruction indicative of an index number of the component through a configuration interface, and establishing a correlation between a physical address of the component, the communication address, and the index number. The index number is configured to identify the component.

Abstract: A method for operating a mobile platform includes selecting a first sensor associated with a higher weight as a selected sensor among at least two sensors, the weight is among a plurality of weights assigned to the sensors associated with a statistical weight function; detecting a malfunction in the first sensor communicating with a sensor controller associated with the mobile platform, and switching to a second sensor associated with a lower weight as the selected sensor to communicate with the sensor controller based upon the detecting.