Klang, Alexander H

A posture tracking apparatus and method are provided. The apparatus captures an eye image of a user. The apparatus calculates an eye posture based on the eye image. The apparatus captures a reflected image from the eye image. The apparatus calculates a head posture of the user based on the reflected image and the eye posture.

This disclosure describes systems (100) and methods (600) for monitoring and evaluating energy consumption (128) at a worksite across types of machinery including mobile and stationary machinery (102, 104, 108, 150) as well as across energy types consumed by each of the types of machines. The systems (100) and methods (600) provide for aggregating fuel-based (302) and electricity-based (304) energy consumption as determined from sensor systems (110, 114, 138, 152) of machines at a worksite. The systems (100) further provide for control of operations at a worksite to achieve one or more objectives.

An aftertreatment mixing tube (62) includes a mixing tube body (66) having an exhaust inlet (70) located in a first tube end (72), an exhaust outlet (74) located in a second tube end (76), and an inner tube surface (80) circumferentially extending around a center axis (68) and forming an exhaust passage (82). The mixing tube body further includes a diesel exhaust fluid (DEF) injection port (84) positioned proximate to the first tube end. The mixing tube defines a mixing tube inner diameter dimension, and a mixing tube axial length dimension, and a ratio of the mixing tube axial length dimension to the mixing tube inner diameter dimension ranges from 5.9 to 6.7. An exhaust system (16) and methodology of operating an aftertreatment system (32) are also disclosed. In the aftertreatment mixing tube (62) there can be downstream of the DEF injector (86) impingement surfaces for improved mixing.

An exhaust system (10) for an internal combustion engine (12) includes an exhaust conduit (40), and a NOx sampling device (44) arranged to sample a stream of exhaust fed through the exhaust conduit (40) to an exhaust outlet (42). The NOx sampling device will be coupled with a NOx sensor (76) having a sensor probe (78) fluidly connected to a mixing chamber (56) in the NOx sampling device. A plurality of sampling flutes (58, 60, 62) each form an exhaust feed passage (64, 66, 68) to sample the exhaust at locations providing improved sensor reading accuracy.

An aftertreatment mixing tube (62) includes a mixing tube body (66) having an exhaust inlet (70) located in a first tube end (72), an exhaust outlet (74) having a plurality of perforations (92) located in a second tube end (76), and an inner tube surface (80) circumferentially extending around a center axis (68) forming an exhaust passage (82). The mixing tube further includes a plurality of exhaust impingement elements (114) serially arranged in the exhaust passage, each exposed to a flow of exhaust through the exhaust passage and oriented to deflect exhaust in radial directions, and a diesel exhaust fluid (DEF) injection port positioned proximate to the first tube end.

A synchronization system and a synchronization method of a coordinate system are provided. The synchronization method includes: communicatively connecting a first head-mounted display to a first mobile device, wherein the first mobile device includes a first light source, and the first mobile device and the first head-mounted display correspond to a first coordinate system; outputting a first light based on a first mode by the first light source; identifying the first mobile device according to the first light by a second head-mounted display, wherein the second head-mounted display corresponds to a second coordinate system; and using the first mobile device as a reference point to synchronize the second coordinate system with the first coordinate system by the second head-mounted display.

The present disclosure provides a tracking method and a multi-device system. The multi-device system is operable in a physical environment. The multi-device system includes a host device and a peripheral device. The tracking method includes: by the host device, generating a first pose data of the peripheral device based on an interaction between the host device and the peripheral device; by the peripheral device, receiving a host map of the physical environment established by the host device; by the peripheral device, generating a second pose data of the peripheral device based on the host map; and by the peripheral device, transferring the second pose data to stop the host device generating the first pose data.

A tracking system and a tracking method for power saving are disclosed. The tracking method includes: adjusting, by a first mobile device, at least one of first power consumption of a sensor of the first mobile device and second power consumption of a first light source of the first mobile device; executing, by the first mobile device, at least one of the following: obtaining sensed data according to the adjusted first power consumption; and adjusting illumination of the first light source according to the adjusted second power consumption; and tracking, by a second mobile device, the first mobile device according to at least one of the sensed data and the illumination of the first light source.

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