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175 results about "Self triggering" patented technology

Dual mode adaptive threshold architecture for 3-D ladar FPA

An integrated detector and signal processor (31) for ladar focal plane arrays (30) which internally compensates for variations in detector gain, noise, and aerosol backscatter. The invention (31) is comprised of a detector element (42) for receiving an input signal, a circuit (72) for generating a threshold based on the RMS noise level of the input signal, and a circuit (74) determining when the input signal is above that threshold. The detector element (42) is physically located in the interior of the detector array (30), while the signal processing circuitry (50) is located on the periphery of the array (30). In the preferred embodiment, the signal processor (31) also includes a circuit (56) for sampling the input signal and a circuit (58) storing multiple samples, allowing for multiple returns to be detected. In the preferred embodiment, the signal processor (31) can be operated in two modes: self triggered and externally triggered (range-gate mode). In the self triggered mode, the detector continually monitors and samples the incoming signal until a return is detected (by the thresholding circuit). In the range-gate mode, the detector stops sampling when it receives a signal from an external source. Once the data has been acquired, readout electronics (66) output the stored samples along with the stored "stopped" time code to an external computer (26).
Owner:RAYTHEON CO

Preparation method of photoelectric sensitive charged nanometer particles

InactiveCN101812182ASelf-initiating propertiesImprove long-term stabilityInksCoatingsSolubilityCross-link
The invention relates to a preparation method of photoelectric sensitive charged nanometer particles, which belongs to the technical field of ultraviolet light polymerization or polymerization. The invention uses photoelectric sensitive monomers ion type monomers or ionizable monomers and flexible monomers capable of automatically triggering the cross linking through ultraviolet irradiation for co-polymerization to obtain a photoelectric sensitive ion type polymer, and a self assembly method is used for preparing the photoelectric sensitive charged nanometer particles with the self triggering capability capable of being used for electric field inducing film formation. The photoelectric sensitive charged nanometer particles have water solubility. Because the photoelectric sensitive charged nanometer particles does not need additionally added light triggering agents and has good long-time stability, the photoelectric sensitive charged nanometer particles can be used for preparing molecular engram identification films, aqueous cathode/anode electrophoresis photocureable paint and photosensitive particles used for printing plates, and can also be used for nanometer particle inkjet printing. The photoelectric sensitive charged nanometer particles have good stability, low-temperature fast curing capability and environment-friendly performance.
Owner:JIANGNAN UNIV

Self-triggering putting type water sampling equipment based on unmanned aerial vehicle

The invention discloses self-triggering putting type water sampling equipment based on an unmanned aerial vehicle, and aims at providing water sampling equipment which is low in energy consumption, high in efficiency and capable of performing repeated fixed-point water sampling on different water areas. The water sampling equipment comprises a water sampling equipment body arranged on the unmanned aerial vehicle, a lifting device used for lifting the water sampling equipment body, and a distance detecting device arranged on the unmanned aerial vehicle and used for detecting the distance between the unmanned aerial vehicle and the water surface. The water sampling equipment body comprises a rack, an automatic water sampling device arranged on the rack, and a filtering net cage arranged on the rack. The rack comprises vertical guide rods, a floating frame and buoyancy devices arranged on the floating frame. The floating frame is provided with floating frame guide sleeves, the floating frame guide sleeves are arranged on the vertical guide rods in a sliding and sleeving mode, and fastening bolts capable of fixing the floating frame guide sleeves to the vertical guide rods are arranged on the floating frame guide sleeves. The floating frame, the floating frame guide sleeves and the buoyancy devices are located above the filtering net cage, and the automatic water sampling device is located in the filtering net cage.
Owner:ZHEJIANG SCI-TECH UNIV

Method and device for achieving real-time speech in virtual scene interaction

The invention reveals a method and device for achieving the real-time speech in virtual scene interaction. The method comprises the steps: obtaining an instruction for self-triggering to enter a real-time speech room in the virtual scene interaction, wherein the real-time speech room is matched with a virtual scene social contact relation of a user; Transmitting a virtual scene business message with a real-time speech service request to a server through a response instruction; receiving real-time speech service access information returned by the server; and performing real-time speech access to enter the real-time speech room according to the real-time speech service access information. The implementation of the real-time speech in the virtual scene interaction does not need to operate two programs at the same time, so the method can be suitable for an all-platform. The real-time speech room for achieving the real-time speech is matched with the virtual scene social contact relation of the user. With the change of the virtual scene social contact relation of the user, the user enters a corresponding real-time voice room, so the method can accurately adapt to the process of the virtual scene interaction, and greatly improves the integration degree of the real-time speech in the virtual scene interaction.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Demodulation method for Bragg grating

The invention relates to a demodulation method for a Bragg grating. The demodulation method for Bragg grating comprises the following steps: inputting broadband light into an F-P tunable filter by using an ASE broadband light source, converting the broadband light into frequency-sweeping narrowband light by using the F-P tunable filter under the action of scanning control periodic voltage provided by a digital signal processor (DSP) system, and changing the length of an F-P cavity in the filter by using an electrically controlled piezoelectric ceramic to change the conductive frequency band of the F-P filter; scanning the reflecting light spectrum of the whole grating by using the conductive frequency band of the F-P filter under the action of a tuning control signal, calculating the required current according to the current filter optical fiber grating temperature obtained by a PID controller, and setting the temperature of the filter optical fiber grating to the proper working point by setting the current of a current source; performing signal measurement on an optical fiber grating dynamic strain sensing system by using a computer through a program control data acquisition card after the system is stabilized at the working point, and measuring the strained dynamic signal by using the system in a self-triggering mode after a trigger signal appears; converting an optical signal into an electric signal by using a photoelectric detector and entering the DSP system; and adding an interpolant into a light path, and interpolating and calibrating the wavelength value. By the method, the signal to noise ratio is high and the strain measurable range is large.
Owner:顾杨

Water lifesaving capsule capable of being catapulted and application

The invention discloses a water lifesaving capsule capable of being catapulted. The water lifesaving capsule comprises an equipment storage shell, a positioning communication unit, a water-sensitive self-triggering device, a high-pressure air bottle, a compression folding air bag and an air bag storage shell. The air bag storage shell and the equipment storage shell form an integrated shell in a buckling mode, the compression folding air bag is usually folded in the air bag storage shell, a water inflow window is formed in the equipment storage shell, when the water lifesaving capsule is catapulted into the water, the water-sensitive self-triggering device induces that the water lifesaving capsule falls into the water and activates the high-pressure air bottle to inflate the compression folding air bag, the lifesaving capsule is unfolded, meanwhile, a hydraulic switch is turned on, a power source supplies power, the positioning communication unit starts to work, and a Beidou/GPS double-mode positioning module obtains position data and then sends position information to a rescue network platform through a communication module. The water lifesaving capsule is in a catapulting foldingmode, design is reasonable, mounting is convenient, catapulting is quick, rescue time is shortened, the size is small, plenty of the capsules can be conveniently stored and carried, styles of the compression folding air bag are various, and the capsule can be applied to water lifesaving.
Owner:张非非 +1

Self-triggering water quality detection unmanned plane device

The invention discloses a self-triggering water quality detection unmanned plane device. The self-triggering water quality detection unmanned plane device has low energy consumption and high efficiency and can realize multitime fixed-point water sample acquisition in different water areas. The device comprises a frame, an automatic water sampling device arranged on the frame and a lifting device which is arranged on an unmanned plane and is used for lifting the frame. The frame comprises a vertical guide rod, a floating frame and a floating device arranged on the floating frame. The floating frame is provided with a floating frame guide sleeve. The floating frame guide sleeve slidingly sleeves the vertical guide rod. The vertical guide rod is provided with an upper positioning block and a middle positioning block below the upper positioning block. The floating frame guide sleeve is located between the upper positioning block and the middle positioning block. The automatic water sampling device is located below the floating frame. The automatic water sampling device comprises a row of water sampling cylinders orderly arranged on the frame from left to right. The water sampling cylinders are fixed to the vertical guide rod. The water sampling cylinder is provided with a water feeding structure and a fusing device.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG
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