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41results about How to "Increase launch distance" patented technology

Anti-optical circuit of infrared touch screen and anti-optical method thereof

The invention discloses an anti-optical circuit of an infrared touch screen, comprising a background light intensity acquisition unit, a background light hold circuit, a background light intensity AD conversion unit, a control singlechip, a compensation level DA conversion unit and a subtracting circuit; wherein the control singlechip is connected with and used for controlling the background light intensity acquisition unit, the background light hold circuit, the background light intensity AD conversion unit and the compensation level DA conversion unit; the input of the subtracting circuit is connected with an infrared receiving signal channel, the background light hold circuit and the compensation level DA conversion unit. The invention also provides an anti-optical method of the infrared touch screen, comprising the steps: A. acquiring background light intensity; B. transmitting effective infrared light signals; C. receiving the infrared light signals by a receiving end; D. using the received infrared light intensity to substrate the background light intensity to obtain effective intensity of the received light. The invention has the advantages that on the premise of ensuring a certain anti-optical property, the transmitting time and current of a lamp can be shortened as much as possible, a receiving circuit is simplified, the transmitting distance is prolonged, and the scanning speed is accelerated.
Owner:深圳市易优特科技有限公司

Bird repelling bomb and bird repelling device

The invention discloses a bird repelling bomb and a bird repelling device. The bird repelling bomb comprises a lift-off part and a protection part, wherein the added protection part provides lift-off power and protection for the lift-off part, withstands gunpowder combustion residues jetted by the lift-off part and keeps an inner cavity of a launching device clean; the bird repelling device comprises the bird repelling bomb and the launching device; the bird repelling bomb is installed in the launching device; the launching device is further divided into a bomb loading part and a handheld part; and the bomb loading part and the handheld part are in threaded connection. In addition, the ignition mode is improved, the mode of explosive and resistance heating ignition is not adopted for ignition any more, electric arc ignition is adopted, more convenience and safety are achieved, and the cost is lower. According to the ignition fuse, combustion-supporting powder, iron powder and an adhesive are added on the basis of an existing common fuse, so that the problem that the fuse is difficult to ignite through electric arc ignition is solved. The launching device can be held in one hand and is convenient to carry. The bird repelling bomb can be launched after being loaded, and can be rapidly and continuously launched to timely deal with bird activities only by cleaning once after being used for one day.
Owner:THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA

Acoustic wave transmitting device for multi-target positioning

ActiveCN105891808ABreakthrough the shortcomings of short launch distanceSolve fever problemAcoustic wave reradiationSonificationTransformer
The invention belongs to the ultrasonic wave positioning technical field and relates to an acoustic wave transmitting device for multi-target positioning. The device is composed of a shell, a transducer, a switching power amplifier, a signal processor and a switching power source; 220V alternating current is inputted into the device; the switching power source supplies power for the signal processor and the switching power amplifier so as to make the signal processor and the switching power amplifier operate; the signal processor outputs intermittent simple harmonic signals; the intermittent simple harmonic signals are amplified by the switching power amplifier; the amplified signals are subjected to voltage boosting of a transformer; the intermittent simple harmonic signals processed by the transformer are supplied for the transducer so as to excite the transducer to vibrate; the transducer transmits the intermittent simple harmonic signals to target points required by the multi-target positioning, so that devices at the target points can determine distances from the target points to an ultrasonic wave transmitting point according to the speed and time of the transmission of ultrasonic waves in the air; and therefore, one-point-transmitting and multi-target simultaneous receiving positioning can be realized. The acoustic wave transmitting device of the invention can be applied to the positioning of construction personnel between a secondary lining and a tunnel face in a tunnel excavation project of a railway, a highway and the like, and can be also applied to the determination of the movement positions and stay time of peoples in places such as squares, exhibitions and parks.
Owner:杭州聚声科技有限公司

Long-distance substance detection device based on ultraviolet Raman spectrum analysis

PendingCN112362635AIncrease launch distanceRealize long-distance non-contact detectionRaman scatteringUv spectrumUltraviolet lights
The invention provides a long-distance substance detection device based on ultraviolet Raman spectrum analysis, and relates to the field of laser detection. The long-distance substance detection device comprises a remote detection probe which comprises an ultraviolet collimating lens and an ultraviolet objective lens which are coaxially arranged, an ultraviolet laser which is used for continuouslyemitting ultraviolet laser beams, sending the ultraviolet laser beams to the remote detection probe through an ultraviolet light path assembly and converging and irradiating a detection target through the ultraviolet collimating mirror; the remote detection probe continuously receives the target scattered light through the ultraviolet objective lens and sends the target scattered light to an ultraviolet spectrograph through the ultraviolet light path assembly, and the ultraviolet spectrograph performs filtering and spectral analysis on the target scattered light to obtain a target spectral curve and obtain a Raman spectrum through shooting; and an analysis device is used for carrying out multidimensional comparison on the Raman spectrum and a plurality of known substance spectrum data toobtain a substance component analysis result. The ultraviolet pulsation quasi-continuous emitting laser is used for increasing the emitting distance of laser, long-distance non-contact detection is achieved, and the influence of stray light on the detection precision is reduced in cooperation with a light filtering assembly.
Owner:THE THIRD RES INST OF MIN OF PUBLIC SECURITY

Intelligent adhesive sticker printer based on Internet of Things

The invention relates to an intelligent adhesive sticker printer based on the Internet of Things. The intelligent adhesive sticker printer comprises a body, an overturning cover arranged above the body, a base arranged below the body, heat dissipation pipes arranged on the two sides of the body and a plurality of supporting feet. The supporting feet are fixed to the bottom of the base. Filtering and heat dissipation mechanisms are arranged in the heat dissipation pipes. According to the intelligent adhesive sticker printer based on the Internet of Things, mutual attraction or repelling acting force can be generated between a second coil and a first coil by changing the current direction in the second coil, so that fixing rods are controlled to enter or disengage from fixing grooves, and convenient and fast mounting and dismounting of filtering and heat dissipation units are achieved. In addition, in an ultrasonic transmitting circuit, inductance serves as load resistance on a first triode collector so that the excitation voltage can be better increased, and an ultrasonic transmitter can transmit large power; and meanwhile, the function of improving the resonance characteristic of the ultrasonic transmitter is achieved, and accordingly the transmitting distance and the reliability of an ultrasonic generation circuit are improved.
Owner:南京鑫彩峰广告集团有限公司

An intelligent self-adhesive printer based on the Internet of Things

The invention relates to an intelligent adhesive sticker printer based on the Internet of Things. The intelligent adhesive sticker printer comprises a body, an overturning cover arranged above the body, a base arranged below the body, heat dissipation pipes arranged on the two sides of the body and a plurality of supporting feet. The supporting feet are fixed to the bottom of the base. Filtering and heat dissipation mechanisms are arranged in the heat dissipation pipes. According to the intelligent adhesive sticker printer based on the Internet of Things, mutual attraction or repelling acting force can be generated between a second coil and a first coil by changing the current direction in the second coil, so that fixing rods are controlled to enter or disengage from fixing grooves, and convenient and fast mounting and dismounting of filtering and heat dissipation units are achieved. In addition, in an ultrasonic transmitting circuit, inductance serves as load resistance on a first triode collector so that the excitation voltage can be better increased, and an ultrasonic transmitter can transmit large power; and meanwhile, the function of improving the resonance characteristic of the ultrasonic transmitter is achieved, and accordingly the transmitting distance and the reliability of an ultrasonic generation circuit are improved.
Owner:南京鑫彩峰广告集团有限公司

A multi-target positioning acoustic wave emission device

The invention belongs to the ultrasonic wave positioning technical field and relates to an acoustic wave transmitting device for multi-target positioning. The device is composed of a shell, a transducer, a switching power amplifier, a signal processor and a switching power source; 220V alternating current is inputted into the device; the switching power source supplies power for the signal processor and the switching power amplifier so as to make the signal processor and the switching power amplifier operate; the signal processor outputs intermittent simple harmonic signals; the intermittent simple harmonic signals are amplified by the switching power amplifier; the amplified signals are subjected to voltage boosting of a transformer; the intermittent simple harmonic signals processed by the transformer are supplied for the transducer so as to excite the transducer to vibrate; the transducer transmits the intermittent simple harmonic signals to target points required by the multi-target positioning, so that devices at the target points can determine distances from the target points to an ultrasonic wave transmitting point according to the speed and time of the transmission of ultrasonic waves in the air; and therefore, one-point-transmitting and multi-target simultaneous receiving positioning can be realized. The acoustic wave transmitting device of the invention can be applied to the positioning of construction personnel between a secondary lining and a tunnel face in a tunnel excavation project of a railway, a highway and the like, and can be also applied to the determination of the movement positions and stay time of peoples in places such as squares, exhibitions and parks.
Owner:杭州聚声科技有限公司
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