60results about How to "Expand the scope of reception" patented technology

The invention discloses an antenna structure, an operating method therefor, and antenna equipment. The antenna structure comprises a first dielectric substrate; a first electrode layer and a second electrode layer which are disposed at one side of the first dielectric substrate and are arranged oppositely; a liquid crystal layer disposed between the first electrode layer and the second electrode layer, wherein the first electrode layer comprises a first electrode bar and a second electrode bar, which are insulated with each other. The first and second electrode bars can form a horizontal electric field, thereby enabling the orientation of liquid crystal molecules in the liquid crystal layer to tend to be the direction of the horizontal electric field. The radiation range of the antenna structure can enlarged without an additional orientation layer, the difficulty of the preparation technology of the antenna structure is reduced, and the cost is saved.

A mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna comprises a 13.56MHz through-connection-bridge antenna, an outer ring helical antenna and an 8-shaped antenna formed by connecting two reversed rounding spiral coils in series. The 8-shaped antenna is inlaid in a ring of the outer ring helical antenna and is next to the ring of the outer ring helical antenna, the 13.56MHz through-connection-bridge antenna is located in a ring of a 13.56MHz reader antenna, and the outer ring helical antenna and the 8-shaped antenna are connected with respective through-connection-bridge chips. The antenna uses the through-connection-bridge chip with low receiving gain to connect the helical antenna which is arranged on the periphery and has a small number of rings to mainly receive mobile phone signals with weak shield, uses the 8-shaped antenna which is formed by series-opposing connection coils, arranged in the inner ring, and has a large number of rings to receive mobile phone subscriber identity module (SIM) sending signals with strong shield, uses the same 13.56MHz antenna for load debugging, can receive various signals sent by the mobile phones, enables the signals to be sent to the reader in the load debugging mode, and completes a signal transmission function from the mobile phones to the reader.

The invention discloses an anti-interference anti-deception ADS-B receiver based on directional antennas, and a receiving method of the anti-interference anti-deception ADS-B receiver. The method specifically comprises the steps: forming an antenna array through a plurality of directional antennas, wherein each directional antenna is connected with a dedicated receiving channel, thereby achievingthe signal amplifying, filtering and mixing; carrying out the demodulation of signals through a dedicated demodulation decoding module, and obtaining the state information of an aircraft; extracting the position information of the aircraft, and enabling a direction calculation module to estimate the direction of an incoming wave through the position information of the aircraft and the position information of a receiver; enabling comparison module to achieve the matching of the estimated direction of the incoming wave with an incoming wave direction range of a directional antenna receiving thesignal, and transmitting a matching result and the state information of the aircraft to a control system through an output module. The method enlarges the coverage of the receiver, solves a problem that a signal cannot be correctly demodulated and decoded during information collision, and improves the anti-interference and anti-deception capability of the receiver.

The invention discloses an atomic time signal receiving system and method. The system comprises a microwave detection part and a microwave signal processing part, wherein the microwave detection part is used to couple an optical signal at an atomic time signal receiving position at any position in an optical fiber link and then demodulate a microwave signal on the optical signal; the microwave signal processing part is used to reproduce an atomic time signal of which the phase is locked on a reference clock on the basis of the demodulated microwave signal; and the microwave detection part can respectively couple parts of the optical signals transmitted along the opposite directions in the optical fiber link and then perform a demodulation process. According to the atomic time signal receiving system, atomic time signal of which the phase is locked on the reference clock can be reproduced at any position in the compensated signal transmission system of the optical fiber link, thus the application range of the atomic time signal fiber transmission system can be enlarged.

The invention discloses a wireless communication module which comprises a baseband chip, an antenna, a single-pole double-throw switch, a signal transmission branch and a signal receiving branch. The signal receiving branch comprises a band-pass filter, a single-pole three-throw switch, a low noise amplifier and an attenuator, the band-pass filter is connected with the antenna through the single-pole double-throw switch, the single-pole three-throw switch is connected with the band-pass filter, and the three branches of the single-pole three-throw switch are respectively connected to the baseband chip directly and through the low noise amplifier and the attenuator. The wireless communication module selects the corresponding signal transmission route according to the intensity of the signals received by the antenna and conducts amplification, attenuation or shoot-through on the signals, and therefore the signal receiving range of the wireless communication module is expanded.

The invention relates to the field of balance vehicles, and specifically relates to a supersonic wave emitter and a balance vehicle system capable of following automatically. The supersonic wave emitter comprises a housing and a supersonic wave emitting structure arranged in the housing. The supersonic wave emitting structure comprises a supersonic wave emitting head used for emitting supersonic waves and a driving assembly used for driving the supersonic wave emitting head. A diffuser is further arranged relative to an emitting end of the supersonic wave emitting head, and a top point of the diffuser and the emitting end are arranged in an opposite manner. According to the embodiment of the invention, the supersonic waves originally propagated in a directed manner are turned to the supersonic waves propagated diffusely in an annular direction, that is to say, the supersonic waves propagated in a directed manner are turned to the supersonic waves propagated in an omnidirectional manner, and a supersonic wave receiving device is enabled to receive supersonic wave signals at any angle of a ring, so that the receiving range of the supersonic waves is improved, the accuracy of automatic following of the balance vehicle is further improved, and the usage experience of the balance vehicle is improved.

The invention discloses a cleaning box and a sweeping robot thereof. The cleaning box is at least used for collecting particulate matter, a dust collecting cavity is formed in the cleaning box, the cleaning box further comprises a shell, the shell is of a transparent structure, the dust collecting cavity is located in the shell, at least one receiving head used for receiving signals is installed in the dust collecting cavity, and the signals at least comprise infrared signals. According to the cleaning box and the sweeping robot thereof, the problems that an existing sweeping robot has a blindarea when receiving signals of a remote controller, attractiveness is affected, the structure is complex, and cost is high are solved. Meanwhile, the problem that an integrated dust box water tank ofan existing floor sweeping robot limits the situation that the dust box cannot be independently installed on the floor sweeping robot is solved, and the problem that the volume of the dust box cannotbe independently increased, so that little garbage can be contained in the dust box is solved.

The invention discloses a light concentrator for a scattering fire smoke detector, which comprises a light concentrator shell, the internal reflection surface of the light concentrator shell is a compound parabolic reflective surface, and light beams are arranged at the front and back ends of the light concentrator shell respectively. The entrance and the light exit. The light entrance includes an end light entrance and a side light entrance. The side light entrance is provided on the side of the concentrator shell and intersects with the end light entrance. The present invention also proposes a scattering type fire smoke detector, which collects scattered light from smoke particles in the optical detection chamber by using the light collector for the above scattering type fire smoke detector. In the present invention, the side light entrance is set on the concentrator, which increases the area of ​​the light entrance, increases the range of receiving scattered light, and improves the ability of the concentrator to collect scattered light, thereby improving fire smoke detection detection sensitivity and detection accuracy.

The invention discloses a dust removal and sterilization device for non-woven fabric processing. The dust removal and sterilization device comprises a fixed shell; two non-woven fabric movable grooves are formed in the left side and the right side of the fixed shell; extended pressing plates are arranged on the outer side surfaces of the bottom ends of the two non-woven fabric movable grooves; four ultraviolet lamp mounting blocks are arranged on the left side and the right side of the interior of the fixed shell; and the four ultraviolet lamp mounting blocks are distributed at the upper ends and the lower ends of the inner side surfaces of the two non-woven fabric movable grooves. According to the device, a sealing structure is adopted for dust removal and sterilization, so that dust is effectively prevented from floating indoors during dust removal, and the dust is prevented from damaging human health; a dust-free cloth fixing structure is arranged on the outer side of the device, so that dust-free cloth can be conveniently positioned and cleaned; a non-woven fabric vibration structure is arranged in the device, so that dust accumulated in gaps of the dust-free cloth is vibrated into air through high-frequency vibration; and the dust floating in the device is absorbed through an arranged dust suction device.

The invention provides a multi-scale enhanced monocular depth estimation method, which comprises the following steps: step 1, inputting a single RGB image, and then performing multi-scale feature extraction on the RGB image by adopting a context and receptive field enhanced high-resolution network CRE-HRNet to obtain a high-resolution first image; step 2, using a residual error expansion convolution unit of a receptive field enhancement module to carry out expansion convolution on the first depth image to obtain a second image; and step 3, capturing long-distance pixel points of the second depth image by using a weighted non-local neighborhood module to obtain a depth image. According to the method provided by the invention, the monocular depth estimation precision is high on the basis of obtaining the feature information of the intermediate layer.

The invention relates to a satellite-borne GNSS-S radar ship target signal receiving and direct interference suppression method. The method comprises the following steps: a, optimizing an antenna; b, optimizing direct interference signal suppression; and c, performing digital beam forming on the GNSS-S signal. According to the invention, weak scattering signals of large-range sea surface ship targets can be received, and direct interference signals of a plurality of navigation satellites can be inhibited.

The invention discloses a signal device for fire-fighting lifesaving. According to the technical scheme, the signal device is characterized in that the signal device comprises signal terminal equipment and a bottom plate used for installing the signal terminal equipment, two symmetrical driving wheels are fixedly installed on the lower surface of the bottom plate, and the two driving wheels are sleeved with two crawler belts; a mounting groove is formed in the upper surface of the bottom plate, a plurality of damping mechanisms are fixedly mounted in the mounting groove, a protection box is mounted at the upper ends of the damping mechanisms, a first moving mechanism and a second moving mechanism are fixedly mounted in the protection box, and the first moving mechanism and the second moving mechanism are the same in structure. A first servo motor is fixedly installed on the upper surface of the protection box, a crawler belt arranged on a driving wheel in a sleeving mode is beneficial to improving the walking capacity of the device on a muddy road surface and a road surface with a large slope, an arranged damping mechanism is beneficial to improving the overall anti-seismic buffering performance of the device, and the device is prevented from being damaged.

The invention discloses a radio frequency interference intensity detection system and method, the system comprises a hardware system and a detection system, the hardware system is composed of hardware equipment, and the hardware equipment comprises a detection machine body, a control key, an indicating lamp, an IIC interface, a UART interface and a liquid crystal screen. According to the radio frequency interference intensity detection mode, a double-antenna frequency division detection mode is adopted, the receiving mode of interference signals in low-frequency and high-frequency interval ranges is realized, and the receiving range of the interference signals is expanded; meanwhile, for the radio frequency interference intensity, the radiation intensity under different gains of the signal and the radiation intensity after frequency and power interpolation in radiation are calculated, in cooperation with the calculation of interference time, the comprehensiveness of radio frequency interference signal detection is effectively achieved, and through the calculation of the two kinds of radiation intensity, the detection accuracy is improved. Errors generated by radio frequency interference intensity detection are effectively reduced, and the accuracy of radiation intensity detection is ensured.

The invention discloses an infrared video monitoring system, which comprises an infrared receiving circuit, a single-chip microcomputer, a reset circuit, an amplifying circuit and a communication circuit, wherein the single-chip microcomputer is respectively connected to the amplifying circuit, the infrared receiving circuit and the communication circuit; the amplifying circuit is also connected to an LED dynamic display circuit; the communication circuit is also respectively connected to N decoding circuits; and output ends of the N decoding circuits are all connected to image acquisition equipment. According to the infrared video monitoring system, through using an operational amplifier U2, a chip U1 and a chip U3, a received infrared signal can be accurately fed back to a chip U4 to output, so that the sensitivity and the receiving range of an infrared receiver are improved, and furthermore, the circuit structure is simple, so that the manufacturing cost and the manufacturing difficulty are reduced, and the infrared video monitoring system is suitable for promotion and application.