Abstract: The present disclosure provides a monitoring device operable to report sensor measurement data in a battery system. The monitoring device comprising: at least one sensor operable to obtain measurement data of one or more modules of the battery system; a receiver operable to receive, from a communications controller, a timing signal defining a transmission time of a reporting frame; and a transmitter operable to report the obtained measurement data to the communications controller; wherein the monitoring device is configured to: use the received timing signal to select a sampling time for the at least one sensor to obtain the measurement data of the one or more modules of the battery system; and transmit the obtained measurement data to the communications controller at the transmission time defined in the received timing signal.

Abstract: In some implementations, a test system may receive a first signal and a second signal. The first signal and the second signal may be transmitted by a base station and the first signal may be associated with a first antenna port and the second signal may be associated with a second antenna port. The test system may extract first data from the first signal and second data from the second signal. The first data and the second data may be associated with one or more wireless communication channels. The test system may normalize, based on the first data, the second data to generate normalized second data. The test system may estimate a residual error associated with the second antenna port based on the normalized second data. The test system may assess a performance of the base station based on the residual error.

Abstract: In some implementations, a test system may receive first and second signals. The first and second signals may be transmitted by a base station and may be symmetric on a horizontal domain without any beam tilt in a vertical domain. The first signal may be associated with a first antenna port and the second signal may be associated with a second antenna port. The test system may extract first data from the first signal and second data from the second signal. The first data and the second data may be associated with one or more wireless communication channels. The test system may normalize, based on the first data, the second data. The test system may estimate a residual error associated with the second antenna port based on the normalized second data. The test system may assess a performance of the base station based on the residual error.

Abstract: A testing device may receive, from a phase shift matrix (PSM), a signal pattern associated with a plurality of antenna ports of a base station. The testing device may obtain data associated with the signal pattern and may identify, based on the data, a plurality of null directions associated with the signal pattern. The testing device may, for each null direction of the plurality of null directions: identify, based on the data, a measured amplitude associated with the null direction; determine, based on the measured amplitude, an estimated phase associated with the null direction; and determine, based on the measured amplitude and the estimated phase, an estimated in-phase amplitude associated with the null direction. The testing device may thereby determine error correction information associated with the plurality of null directions. The testing device may provide the error correction information, such as to enable calibration of the PSM.

Abstract: A ramp door assembly coupled to a base is provided. The ramp door assembly has: a ramp door pivotably coupled to the base about a door axis, the ramp door being pivotable between a closed position and an open position; and a lift assist system pivotably coupled to and extending between the ramp door and the base, the lift assist system comprising a spring to generate an assistive torque that biases the ramp door towards the closed position.

Abstract: A base station testing system provides, for display, a graphical user interface (GUI) associated with facilitating testing of a base station by the base station testing system. The GUI includes one or more selectable indicators respectively associated with one or more modules of the GUI. The base station testing system obtains, based on providing the GUI, information indicating selection of a selectable indicator that is associated with analysis of beam patterns associated with the base station and thereby identifies a beam pattern analysis module that is associated with the selectable indicator. The base station testing system provides, for display, in a window of the GUI, information associated with the beam pattern analysis module, wherein the information associated with the beam pattern analysis module includes spatial frequency domain beam pattern analysis information associated with the base station.

Abstract: A transport vehicle, such as a trailer, is provided. The transport vehicle has: ground engaging elements; a body carried by the ground engaging elements and having a load supporting surface; a ramp rotatably coupled to the body, the ramp being rotatable about a ramp axis between a closed position and an open position; a spring assembly coupled to and extending between the body and the ramp, the spring assembly exerting a spring force on the ramp along a force axis. The spring force biases the ramp towards a balanced position located between the closed position and the open position. The spring assembly moves as the ramp rotates between the closed position and the open position such that the force axis passes by above the ramp axis in the closed position, passes through the ramp axis in the balanced position, and passes below the ramp axis in the open position.

Abstract: A testing device may receive, from a phase shift matrix (PSM), a signal pattern associated with a plurality of antenna ports of a base station. The testing device may obtain data associated with the signal pattern and may identify, based on the data, a plurality of null directions associated with the signal pattern. The testing device may, for each null direction of the plurality of null directions: identify, based on the data, a measured amplitude associated with the null direction; determine, based on the measured amplitude, an estimated phase associated with the null direction; and determine, based on the measured amplitude and the estimated phase, an estimated in-phase amplitude associated with the null direction. The testing device may thereby determine error correction information associated with the plurality of null directions. The testing device may provide the error correction information, such as to enable calibration of the PSM.

Abstract: This technology relates to air intake apparatuses that in some examples include a pipe including a throttle body outlet configured to be coupled to an engine throttle body and a resonator outlet configured to be coupled to a resonator of an engine intake system, an exterior surface including a pipe aperture, a sensor insert coupled to the exterior surface and including an insert aperture substantially aligned with the pipe aperture, and an inlet configured to be coupled to an engine air filter. The sensor insert is configured to be coupled to a mass air flow (MAF) sensor. The air intake apparatus can further include an air intake sleeve including a sleeve aperture and received by the pipe such that the sleeve aperture is substantially aligned with the pipe and insert apertures to facilitate extension of a portion of the MAF sensor into an air flow path, thereby improving MAF sensor output.

Abstract: A pouch cell battery assembly is disclosed, comprising a pouch cell battery and an electronic device. The pouch cell battery comprises: an expandable enclosure, accommodating an anode stack, a cathode stack, and a separator disposed between the anode and cathode stacks; first and second contact terminals, the first contact terminal being electrically coupled to the anode stack and the second contact terminal being electrically coupled to the cathode stack. The electronic device may be at least partly affixed to the expandable enclosure, and electrically coupled to the first and second contact terminals. The electronic device may be configured to determine at least one physical characteristic of the pouch cell battery.

Abstract: A system for monitoring the state of a battery comprising cell groups includes cell monitoring devices (CMDs) associated with corresponding cell groups and a battery management system (BMS). Each CMD measures properties of cells in the respective cell group using its sensor system and evaluates the measurements to detect faults at the monitored cells. When CMD detects a fault, CMD stores a fault indicator, indicating that the respective cell group experienced a fault, and fault data related to the detected fault, including a timestamp indicating when CMD detected the fault, for subsequent transmission to BMS. Upon waking, BMS receives and processes fault indicators and fault data shared by CMDs to determine action(s) responsive to the fault(s) detected by CMDs.

Abstract: A method of and processor for determining a position of a battery cell within a battery system comprising a plurality of battery cells, each battery cell having a unique identifier (ID) is provided. Each battery cell is configured to emit a first signal when in a first state, the first signal enabling the battery cell in the first state to be distinguished from the plurality of other battery cells comprised in the battery system. The method may comprise: receiving a first signal associated with a battery cell in the first state; obtaining the unique ID associated with the battery cell in the first state; determining the position of the battery cell in the first state within the battery system, based on the received first signal associated with the battery cell in the first state; and associating the determined position with the received unique ID of the battery cell in the first state.

Abstract: Methods and systems for determining a position of a battery cell within a battery system comprising a plurality of battery cells are disclosed. Each battery cell has a unique identifier, and each battery cell is configured to experience a change in voltage when an electrical stimulus is applied to the battery cell. The method comprises receiving a first signal associated with a first battery cell experiencing a change in voltage due to an electrical stimulus applied to the battery cell; obtaining the unique ID associated with the first battery cell; determining the position of the first battery cell, based on the received first signal associated with the first battery cell; and associating the determined position with the obtained unique ID of the first battery cell.

Abstract: A method of and processor for determining a position of a battery cell within a battery system comprising a plurality of battery cells, each battery cell having a unique identifier (ID) is provided. Each battery cell is configured to emit a first signal when in a first state, the first signal enabling the battery cell in the first state to be distinguished from the plurality of other battery cells comprised in the battery system. The method may comprise: receiving a first signal associated with a battery cell in the first state; obtaining the unique ID associated with the battery cell in the first state; determining the position of the battery cell in the first state within the battery system, based on the received first signal associated with the battery cell in the first state; and associating the determined position with the received unique ID of the battery cell in the first state.

Abstract: A pouch cell battery assembly is disclosed, comprising a pouch cell battery and an electronic device. The pouch cell battery comprises: an expandable enclosure, accommodating an anode stack, a cathode stack, and a separator disposed between the anode and cathode stacks; first and second contact terminals, the first contact terminal being electrically coupled to the anode stack and the second contact terminal being electrically coupled to the cathode stack. The electronic device may be at least partly affixed to the expandable enclosure, and electrically coupled to the first and second contact terminals. The electronic device may be configured to determine at least one physical characteristic of the pouch cell battery.

Abstract: A multi-panel base station test system includes a base station radio unit configured with a plurality of antenna panels positioned at a first end of a test chamber of the multi-panel base station test system. The multi-panel base station test system includes a plurality of test antennas positioned at a second end of the test chamber opposing the first end. The multi-panel base station test system includes a microwave lens positioned between the plurality of antenna panels and the plurality of test antennas in the test chamber. The microwave lens is configured to focus respective beams transmitted from each of the plurality of antenna panels toward respective focal points associated with each of the plurality of test antennas based on steering of the plurality of antenna panels.

Abstract: A multi-panel base station test system includes a base station radio unit configured with a plurality of antenna panels positioned at a first end of a test chamber of the multi-panel base station test system. The multi-panel base station test system includes a plurality of test antennas positioned at a second end of the test chamber opposing the first end. The multi-panel base station test system includes a microwave lens positioned between the plurality of antenna panels and the plurality of test antennas in the test chamber. The microwave lens is configured to focus respective beams transmitted from each of the plurality of antenna panels toward respective focal points associated with each of the plurality of test antennas based on steering of the plurality of antenna panels.

Abstract: A multi-panel base station test system includes a base station radio unit configured with a plurality of antenna panels positioned at a first end of a test chamber of the multi-panel base station test system. The multi-panel base station test system includes a plurality of test antennas positioned at a second end of the test chamber opposing the first end. The multi-panel base station test system includes a microwave lens positioned between the plurality of antenna panels and the plurality of test antennas in the test chamber. The microwave lens is configured to focus respective beams transmitted from each of the plurality of antenna panels toward respective focal points associated with each of the plurality of test antennas based on steering of the plurality of antenna panels.

Abstract: A system for testing wireless communication equipment which includes a beamforming antenna, the system comprising: a probe for coupling an antenna element of the beamforming antenna of the wireless communication equipment to be tested to a test and measurement unit; and a lid configured to cover the beamforming antenna, wherein the lid is provided with a port for receiving the probe, such that the probe couples to the antenna element.

Abstract: A multi-panel base station test system includes a base station radio unit configured with a plurality of antenna panels positioned at a first end of a test chamber of the multi-panel base station test system. The multi-panel base station test system includes a plurality of test antennas positioned at a second end of the test chamber opposing the first end. The multi-panel base station test system includes a microwave lens positioned between the plurality of antenna panels and the plurality of test antennas in the test chamber. The microwave lens is configured to focus respective beams transmitted from each of the plurality of antenna panels toward respective focal points associated with each of the plurality of test antennas based on steering of the plurality of antenna panels.