Abstract: A Light Detection and Ranging (LIDAR) system is provided. The LIDAR system includes a LIDAR transmitter configured with a first field of view and configured to transmit laser beams into the first field of view at a plurality of discrete transmission angles in order to scan the first field of view with the laser beams; a LIDAR receiver configured with a second field of view and configured to receive reflected laser beams from the second field of view and generate electrical signals based on the received reflected laser beams; and a controller configured to shift at least one of the first field of view or the second field of view based on a misalignment in order to optimize an overlap of the first field of view and the second field of view.

Abstract: A method of detecting optical crosstalk in a LIDAR system includes selectively activating and deactivating light sources of a light source array; triggering a measurement of the field of view (FOV) during which at least one targeted region of the FOV is illuminated by the light source array and at least one non-targeted region of the FOV is not illuminated by the light source array; generating electrical signals based on at least one reflected light beam being received by a photodetector array, where the photodetector array comprises a targeted pixel group corresponding to the at least one targeted region of the FOV and a non-targeted pixel group corresponding to the at least one non-targeted region of the FOV; and detecting optical crosstalk that appears at at least one portion of the non-targeted pixel group based on electrical signals from the targeted pixel group and the non-targeted pixel group.

Abstract: The present disclosure relates to a light detection and ranging (LIDAR) sensor comprising a detector configured to generate a first detector signal at a first delay time following an emission of a first light pulse and to generate at least one second detector signal at the first delay time following an emission of at least a second light pulse; and a processor configured to generate a combined signal for the first delay time based on a combination of the first detector signal and the at least one second detector signal. Depending on the type of combination, the combined signal can be used for interference detection or mitigation.

Abstract: A method of detecting optical crosstalk in a LIDAR system includes selectively activating and deactivating light sources of a light source array; triggering a measurement of the field of view (FOV) during which at least one targeted region of the FOV is illuminated by the light source array and at least one non-targeted region of the FOV is not illuminated by the light source array; generating electrical signals based on at least one reflected light beam being received by a photodetector array, where the photodetector array comprises a targeted pixel group corresponding to the at least one targeted region of the FOV and a non-targeted pixel group corresponding to the at least one non-targeted region of the FOV; and detecting optical crosstalk that appears at at least one portion of the non-targeted pixel group based on electrical signals from the targeted pixel group and the non-targeted pixel group.

Abstract: A Light Detection and Ranging (LIDAR) system is provided. The LIDAR system includes a LIDAR transmitter configured with a first field of view and configured to transmit laser beams into the first field of view at a plurality of discrete transmission angles in order to scan the first field of view with the laser beams; a LIDAR receiver configured with a second field of view and configured to receive reflected laser beams from the second field of view and generate electrical signals based on the received reflected laser beams; and a controller configured to shift at least one of the first field of view or the second field of view based on a misalignment in order to optimize an overlap of the first field of view and the second field of view.

Abstract: The present disclosure relates to a light detection and ranging (LIDAR) sensor comprising a detector configured to generate a first detector signal at a first delay time following an emission of a first light pulse and to generate at least one second detector signal at the first delay time following an emission of at least a second light pulse; and a processor configured to generate a combined signal for the first delay time based on a combination of the first detector signal and the at least one second detector signal. Depending on the type of combination, the combined signal can be used for interference detection or mitigation.

Abstract: This invention relates to an induction air handling unit (10) that in use has a primary air flow to induce a secondary air flow. It comprises a primary air supply chamber (11) from which the primary air flow is re-directed, an outlet nozzle (14) on the supply chamber (11) that re-directs the jet of primary air away from the supply chamber (11), a partition (15) dividing a space into a first and second region, the supply chamber (11) being positioned within the first region, and an air outlet (16) in the partition (15) having an aperture into which the jet of primary air is directed so that a secondary air flow is caused to flow from within the first region into the second region. In this way, the primary air is mixed with the secondary air and, in the mixed form, meets the heating or cooling requirement within the second region.

Abstract: Methods and apparatus for battery charging provide a charging cycle in which charging periods are separated by intervals. The intervals may include discharging periods. Typical charging sequences for nickel-metal hydride and nickel-cadmium batteries include charging periods having durations of 9 to 11 seconds during which a battery is charged at a rate between 1.9×C and 2.1×C and intervals which include discharging periods having durations of 0.9 to 1.1 seconds during which the battery is discharged at a rate between 0.19×C and 0.2l×C. The charge-rest-discharge-rest pattern is repeated until a specified battery voltage is reached or another event triggers the end of the charging cycle. Charging methods for lead acid batteries are disclosed in which charging pulses alternate with intervals during which the battery is not being charged. The charging current is stepwise reduced over a number of periods.

Abstract: Methods and apparatus for battery charging provide a charging cycle in which charging periods alternate with discharging periods. During the charging periods a lead acid battery is charged at a rate of about 0.55×C amperes to about 0.65×C amperes, where C is the battery capacity in ampere hours. The charging periods have durations of about 60 to 180 seconds. During the discharging periods the battery is discharged at a rate in the range of about 0.05×C to about 0.07×C. The discharge periods have durations of about 10 to 20 seconds. By introducing discharging periods while charging the battery, the battery's internal resistance is deceased and less heat is generated during charging. The charging time is about 1-2.5 hours for lead-acid batteries.

Abstract: Methods and apparatus for battery charging provide a charging cycle in which charging periods alternate with discharging periods. During the charging periods a lead acid battery is charged at a rate of about 0.55×C amperes to about 0.65×C amperes, where C is the battery capacity in ampere hours. The charging periods have durations of about 60 to 180 seconds. During the discharging periods the battery is discharged at a rate in the range of about 0.05×C to about 0.07×C. The discharge periods have durations of about 10 to 20 seconds. By introducing discharging periods while charging the battery, the battery's internal resistance is deceased and less heat is generated during charging. The charging time is about 1-2.5 hours for lead-acid batteries.