47 results about "Impact mitigation" patented technology

A system or method for measuring human ocular performance can be implemented using an eye sensor, a head orientation sensor, and an electronic circuit. The device is configured for measuring vestibulo-ocular reflex, pupillometry, saccades, visual pursuit tracking, vergence, eyelid closure, dynamic visual acuity, retinal image stability, foveal fixation stability, focused position of the eyes or visual fixation of the eyes at any given moment and nystagmus. The eye sensor comprises a video camera that senses vertical movement and horizontal movement of at least one eye. The head orientation sensor senses pitch and yaw in the range of frequencies between 0.01 Hertz and 15 Hertz. The system is implemented as part of an impact reduction helmet that comprises an inner frame having interior pads configured to rest against a person's head and one or more shock absorption elements attached between the inner frame and the spherical shell that couple the spherical shell to the inner frame. The spherical shell has a circular geometry, that when viewed horizontally at its horizontal midplane, includes a center point that is the rotational center of the spherical shell. The one or more shock absorption elements are sized to provide greater spacing between the inner frame and the spherical shell at the sides and rear of the spherical shell than at the front of the spherical shell. The one or more shock absorption elements are sized to configure the alignment of the rotational center of the spherical shell with the proximate rotational center of the wearer's head.

An active material hood impact mitigation mechanism is activated in response to a signal generated from an impact sensor or pre-impact sensor or manually. The mitigation mechanism is capable of changing either reversibly or irreversibly the stiffness, shape, location, orientation, or displacement force of the hood either globally or locally, before an impact against the hood. The active material mitigation mechanism is held in a device designed to be installed in operative communication with the hood surface. The active material is characterized by a first shape or stiffness and is operative to change to a second shape or stiffness in response to the activation signal. Such active materials include shape memory alloys, electroactive polymers, shape memory polymers, magnetic shape memory alloys, magnetorheological fluids, magnetorheological elastomers, electrorheological fluids, and piezoelectric materials.

A collision mitigation system is proposed which makes use of forward mounted long range ladar sensors and short range ladar sensors mounted in auxiliary lamps to identify obstacles and to predict unavoidable collisions therewith, and a duplex radio link in communication with secondary vehicles, and a number of external airbags deployable under the control of an airbag control unit, to reduce the forces of impact on the host vehicle, secondary vehicles, and bipeds and quadrupeds wandering into the roadway. A suspension modification system makes use of headlight mounted long range ladar sensors and short range ladar sensors mounted in auxiliary lamps to characterize the road surface, identify road hazards, and make adaptations to a number of active suspension components, each with the ability to absorb shock, elevate or lower the vehicle, and adjust the spring rate of the individual wheel suspensions.

A mobile electronic device with enhanced impact absorber is disclosed. The device can include: a housing including a front and a rear housing; and a user interface, the rear housing including an impact absorber located on an outer most portion of the rear housing. Beneficially, the impact absorber can provide enhanced impact mitigation. The impact absorber can allow a mobile electronic device to sustain an impact and mitigate damage to the housing and components therein.

This disclosure relates to a method and system for impact mitigation of sudden carrier frequency shifts in OFDM receivers that transforming a received complex digital baseband signal and decoding data from the transformed signal.

A shield includes a first body made of damping material in a solid state and which transitions to a viscous fluid state when critically stressed in compression and a plunger plate with blades extending outwardly therefrom adjacent the first body for transitioning material of the first body from a solid to a viscous fluid state locally near the blades when the blades of the plunger plate are driven into the body. The plunger plate includes a truncated-V shape, a V-shape or a double V-shape.

A crash sensing system for determining a vehicle impact includes an electronic controller for activating impact mitigation equipment during both a first stage event and a second stage event. One or more sensors are used for determining the magnitude of both frontal and side impact forces during the vehicle impact. The controller operates to adjust the sensitivity of the sensors based upon vehicle speed measurements.

A common misconception equates information with intelligence. To transform information into intelligence a number of analytical steps must occur within a framework designed to yield very specific datum associable with other raw or formulated datum, that provides an answer or solution to a sub-problem. Every organization has threats and risks including cyber threats, threats to infrastructure, etc. that can impact the organization on many levels. However, most organizations do not understand how to quantify and assess these risks / threats yet alone assess different preemptive actions for mitigating impact. It would therefore be beneficial to provide organizations with a software based system that provides threat information gathering, incident reporting, and asset identification / valuation as part of its compounded intelligence and supports predictive context specific analysis of risks and countermeasures. Further, distributed countermeasure monitoring provides incident levels of known and unknown, or yet to be categorized threats.

Disclosed is an impact mitigation traffic guardrail device. A plurality of through holes are formed in a base, and bolts, screws and other objects can be fixed on a plane; the interior of a protectiondevice is provided with a force-resilient space, and a sealed type force-receiving mechanism is installed inside the force-resilient space; one end of the force-resilient space is provided with a force-receiving medium inlet and outlet which is the same structure with the force-resilient space, and a force-receiving medium access hole and a sealing switch which are connected with the outside andthe force-resilient space are disposed inside the force-receiving medium inlet and outlet; and a medium discharge mechanism which is the same structure with the force-resilient space is disposed abovethe force-resilient space. According to the impact mitigation traffic guardrail device, the protection device can be used for reducing the hard impact between a vehicle and a guardrail, and under theaction of the protection device, the guardrail can obtain a certain amount of resilient space, so as to reduce the damage of the hard impact in a traffic accident to the vehicle and people in the vehicle; and meanwhile, the certain amount of resilient space can reduce the chance of vehicle rollover under the hard impact and maximize the safety of personnel.

A clutch mechanism includes a pulley, an armature, an electromagnet, a plate spring and a damper. The armature combines with the pulley in a direction of a rotation axis. The electromagnet generates attracting magnetic force, which attracts the armature in a joining direction. The plate spring generates resilient force, which urges the armature in an opposite direction from the joining direction. The damper includes an impact mitigation part mitigating an impact when the armature collides with the pulley. The pulley, the armature, the damper and the plate spring are arranged in this order in the direction of the rotation axis. The damper includes a contact portion contacting part of the armature in the direction of the rotation axis. The plate spring includes a pressing part pressing the contact portion on the armature during both the joining and unjoining of the armature and the pulley.

A method of manufacturing a shield by fabricating a plunger plate to include outwardly extending blades on one surface thereof and coupling the plunger plate to a body of damping material with blades of the plunger plate adjacent the body of damping material. The damping material is configured to transition from a solid to a non-flowing viscous fluid state locally near the blades of the plunger plate as they are driven into the body.

A blast / impact mitigation shield includes, in one example, a first body including a damping material in a solid state and which transitions to a viscous fluid state when stressed beyond a critical stress and a second body including damping material in a solid state and which transitions to a viscous fluid state when stressed. A plunger plate has blades extending outwardly therefrom and is located between the first and second bodies.

This disclosure relates to a method and system for impact mitigation of sudden carrier frequency shifts in OFDM receivers that transforming a received complex digital baseband signal and decoding data from the transformed signal.