A system for proactively adjusting to impact forces has first and second walls spaced apart from one another to define a stationary enclosed cavity therebetween; a movable member inside the enclosed cavity; an actuator; a proximity sensor; computer memory; a processor in data communication with the actuator, the proximity sensor, and the computer memory; programming causing the processor to determine a potential impact location on at least one of the first and second walls using data obtained from the proximity sensor; and programming causing the processor to activate the actuator based on the potential impact location, activation of the actuator causing the movable member to move inside the enclosed cavity prior to receiving the impact forces.

An advanced warning light system in a motorcycle has a brake light comprising a plurality of light emitting diodes (LED) wherein each LED is configured to illuminate a first color when a motorcycle brake is depressed and wherein only a subset of LEDs are configured to illuminate when the motorcycle is decelerating not in response to the brake being depressed. The system further has a controller area network (CAN) bus for transmitting messages, at least one controller configured for monitoring operations of a motorcycle, the at least one controller further configured for transmitting a message on the CAN bus when a monitored operation occurs on the motorcycle, the message comprising data indicating that the vehicle is slowing down, and a CAN bus interface configured to receive the message from the CAN bus and determine if the brake is being depressed or if the motorcycle is slowing down not in response to the brake being depressed, the CAN bus interface configured to transmit a message to illuminate all LEDs on the brake light if the brake is being depressed and configured to transmit a message to illuminate only the subset of LEDs on the brake light if the motorcycle is slowing down for a reason other than the brake being depressed. Additionally, the system has a processor configured for receiving the message from the CAN bus interface, the processor further configured for illuminating the brake light or a subset of the LEDs on the brake light based upon the message received to indicate to a driver following the motorcycle that the motorcycle is slowing down.

Earphone apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

A suspension band assembly to be used to support a hard hat on a head of a user. The suspension band assembly includes a primary support loop to receive the head of the user therein. An electronic peripheral is fixedly secured to the primary support loop. An attachment strap extends out from the primary support loop to a strap distal end. An anchor is fixedly secured to the strap distal end for securing the attachment strap to the hard hat. An electrical anchor contact is fixedly secured to the anchor to provide an electrical connection between the hard hat and the electronic peripheral located on the primary support loop.

A helmet including a lighting system integrated into said helmet, the lighting system comprising a first layer; light emitting means mounted to said first layer; controller means mounted to said first layer for controlling said light emitting means; wiring means for linking said light emitting means to said controller means; a second layer fixably attached to said first layer thereby providing an area between said first and second layer for said light emitting means, controller means, and wiring means; power means fixably attached to said second layer for powering said controller and light emitting means; and operating means functionally linked to said controller means for operating said controller means. The application also discloses lighting system contained in a shell that that can be attached to an existing helmet. This application also discloses a lighting system contained in a flexible material that can be fitted onto an existing helmet.

Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

The disclosure provides conspicuity devices and methods. A first embodiment includes a glove with at least one elongate lighting device adapted and configured to admit light having an advantageous spectral energy distribution. Additional articles of clothing are provided herein for enhanced conspicuity, such as for emergency workers and athletes.

An auxiliary lighting system for a helmet operable with a lighting system of a vehicle comprising a vehicle brake light, comprised of a helmet portion and a vehicle portion. The helmet portion is comprised of a helmet lighting unit, a microcontroller in communication with the helmet brake light, and a helmet transceiver in communication with the microcontroller. The vehicle portion is comprised of a supporting body, a vehicle transceiver, and an accelerometer joined to the supporting body and in communication with the microcontroller. The microcontroller is programmed with an algorithm such that the microcontroller receives a signal indicative of the relative position of the accelerometer, determines the performance capability of the accelerometer in detecting acceleration of the vehicle with respect to the Earth based upon the signal indicative of the position of the accelerometer, and presents an indication of accelerometer performance capability.

Various embodiments of a voltage detection device and of related safety systems are provided. In various embodiments, the voltage detection device is configured to couple to safety headwear, such as via the one or more housing(s) of the voltage detection device coupling directly to the safety headwear or the voltage detection device coupling to an adaptor mounted to the hard hat.

In some examples, a system (1900) includes a hearing protector (1920); at least one position sensor; at least one sound monitoring sensor; at least one computing device configured to: receive, from the at least one sound monitoring sensor and over a time duration, indications of sound levels to which a worker is exposed; determine, from the at least one position sensor and during the time duration, that the hearing protector is not positioned at one or more ears of the worker to attenuate the sound levels; and generate, in response to the determination that at least one of the sound levels satisfies an exposure threshold during the time duration and the hearing protector is not positioned at one or more ears of the worker to attenuate the sound levels, an indication for output.