摘要:
A system and method for detecting, identifying, and fixing the location of the source of an acoustic event. The inventive system includes: a plurality of sensors dispersed at somewhat regular intervals throughout a monitored area; a communication network adapted to deliver information from the sensors to a host processor; and a process within the host processor for determining, from the absolute times of arrival of an event at two or more sensors, a position of the source of the event. Acoustic events are detected and analyzed at each sensor so that the sensor transmits over the network: an identifier for the sensor; an identifier for the type of event; and a precise absolute time of arrival of the event at the sensor. In a preferred embodiment, the system also identifies the type of weapon firing a gunshot.
摘要:
The present invention relates generally to an apparatus for monitoring the occupancy status of a toilet seat. In more particular, it applies to a pressure sensitive switch that can be used in combination with an electronic monitoring device to notify a nearby care-giver or a remote nurse's station that a patient has raised himself or herself from the toilet. Broadly speaking, the instant device is composed of two elements--a pressure sensitive switch and an actuator--that are installed between the toilet seat and the upper rim of the toilet bowl. Pressure on the toilet seat is communicated via the actuator to the pressure sensitive switch which, when compressed, completes an electrical circuit. When the pressure is removed, the electrical circuit is broken, thereby signaling that the patient has risen from his or her seated position on the toilet.
摘要:
An apparatus for simultaneous upper body exercise and lower body exercise is provided. The lower body exercise is of a stairclimbing simulation type. Movement of the upper body exercise handles and lower body exercise pedals are independent from one another. Resistance to motion of the handles and pedals is provided and controlled so as to produce substantially isokinetic exercise. Step-down gears are provided so that a similar amount of upper body effort and lower body effort is perceived by the exerciser.
摘要:
According to an aspect of the instant invention, an LED Engine is provided preferably for use with a Fresnel fixture having a globe socket wherein the LED Engine is plug compatible with the globe socket. A Fresnel lighting fixture generally includes a housing; a Fresnel lens supported from the housing; a focus rail; and a globe socket supported by the focus rail. The globe socket electrically receives a Fresnel globe or bulb. The plug compatible LED Engine of the present disclosure is positionable to be inserted in the globe socket of the existing Fresnel fixture thereby replacing the incandescent bulb. Alternatively, the globe socket may be removed and the LED Engine mounted to the focus rail.
摘要:
LED based searchlight/sky light including, in a basic embodiment, a housing; an LED array supported in/by the housing, a heat sink in communication with the LED array, and a reflector supported in the housing such that the LED array is supported by the housing a distance sufficient above the reflector to allow the light emitted by the LED array to be reflected by the reflector. The reflector is preferably a parabolic reflector such that the light emitted by the LED array is reflected by the parabolic reflector in an intense collimated beam. The LED array may be supported above the parabolic reflector a distance equal to the focal length of the parabolic reflector. A power supply may also be included to regulate the electrical current applied to the LED array.
摘要:
A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit.
摘要:
Systems and methods are disclosed for processing gunshot information. In one exemplary implementation, there is provided a method for processing gunshot information via identification of characteristics of detected gunfire. Moreover, the method may include detecting a particular gunshot event, deriving envelope information for the particular gunshot event, accessing one or more known envelopes associated with known gunshot events, and associating the particular gunshot event with a known weapon or known weapon types as a function of a comparison of the envelope information of the particular gunshot event with known envelope information associated with one or more known weapons. Other exemplary implementations may include comparing attack, sustain, and delay characteristics of the particular gunshot event with known attack, sustain, and decay characteristics associated with the known weapon.
摘要:
An upper body exercise apparatus to assist an exerciser to do chin-ups and dips. The apparatus includes a frame having a base, a support for the exerciser, and chin-up handles and dip handles extending from the frame. A motive device provides for movement of the support vertically between a lower position and an upper position. Angular displacement of the platform is prevented by coupling the platform to a guide device which constrains the support to travel along a predetermined path. The guide device can comprise a wheel and track system. Binding of the wheel and track system is avoided by providing a force to the wheel and track system which tends enhance tracking.
摘要:
LED based searchlight/sky light including, in a basic embodiment, a housing; an LED array supported in/by the housing, a heat sink in communication with the LED array, and a reflector supported in the housing such that the LED array is supported by the housing a distance sufficient above the reflector to allow the light emitted by the LED array to be reflected by the reflector. The reflector is preferably a parabolic reflector such that the light emitted by the LED array is reflected by the parabolic reflector in an intense collimated beam. The LED array may be supported above the parabolic reflector a distance equal to the focal length of the parabolic reflector. A power supply may also be included to regulate the electrical current applied to the LED array.
摘要:
A battery operated LED lighting apparatus including: a battery outputting a battery voltage; a light emitting diode or array of light emitting diodes; and a power supply including a boost regulating circuit. The power supply being in communication with the battery and the light emitting diodes such that a constant voltage or constant current is supplied to the light emitting diodes as the battery discharges and the battery voltage falls below the output voltage. In a preferred embodiment the power supply further includes a buck regulator to maintain the proper output voltage when the battery voltage is greater than the output voltage.