48results about How to "Reduce outside distractions" patented technology

A method (100) for controlling a cell change of a wireless terminal (22) between a first cell (12) served by a LPN (14) and a second cell (16) served by a HPN (18) is disclosed. The cell change is delayed when one or more predefined conditions are met. The predefined conditions may be indicative of a receiver type in the wireless terminal (22), LPN (14), HPN (18), or a combination thereof. The delaying comprises delaying transmission of a cell change command to the wireless terminal (22) by at least a defined delay time relative to a time at which a measurement report is received from the wireless terminal (22); and/or configuring the wireless terminal (22) with at least one mobility parameter to cause a delay at the wireless terminal (22) in transmitting a measurement report relative to a time at which the wireless terminal (22) would have transmitted the measurement report without being configured with the at least one mobility parameter.

The invention discloses a wave glider path tracking control method. The method comprises the steps of: giving preset target points p1, ..., pk (namely target paths), providing real-time position information pm by a GPS, employing an integral line of sight (ILOS) algorithm to convert the path tracking to tracking for a desired heading to obtain a desired heading angle [chi]d; taking the desired [chi]d and a current heading angle [phi] as input of a sliding mode controller, and allowing an output rudder angle [Delta] of the controller to be directly acted at the rudder of the wave glider; and finally, introducing an adaptive fuzzy Kalman filter into a feedback loop to weaken the measurement noise and the external interference of a compass and a GPS.

The invention provides a near field communication system and terminals. The near field communication system comprises the first terminal and the second terminal, wherein the first terminal is provided with a first near field communication area; the second terminal is provided with a second near field communication area; the second near field communication area is provided with a first subunit and a second subunit; the first subunit and the second subunit are used for detecting the distance between the first near field communication area and the second near field communication area, and the second subunit is used for being in communication with the first near field communication area when the distance between the first near field communication area and the second near field communication area is smaller than or equal to preset distance; or the second subunit detects the distance between the first near field communication area and the second near field communication area, and the second subunit is in communication with the first near field communication area when the distance between the first near field communication area and the second near field communication area is smaller than or equal to the preset distance. By arrangement of the special communication areas, signal attenuation and external disturbance in data transmission are reduced, and communication quality is improved.

The present invention relates to an optical fiber pressure sensor based on a micro ellipsoidal air cavity and a manufacturing method of an optical fiber pressure sensor based on a micro ellipsoidal air cavity, belonging to the technical field of optical fiber pressure sensors. The optical fiber pressure sensor comprises a single-mode optical fiber and a pressure-sensitive film; the upper end of the single-mode optical fiber is fixedly connected with the lower end of the pressure-sensitive film; and the single-mode optical fiber and the pressure-sensitive film are connected with an air Fabry-Perot cavity. The materials of the optical fiber pressure sensor are silicon dioxide, so that the thermal expansion coefficients of the optical fiber pressure sensor are the same, thereby avoiding structural failure due to high temperature mismatch of different materials and achieving small temperature crosstalk and low cost. The manufacturing process of the sensor head only needs welding, cutting and grinding, and the process is simple; the confocal Fabry-Perot cavity in the device has the advantages of small interference cavity loss and high interference fringe contrast ratio and high demodulation precision compared with the Fabry-Perot cavity made by the etching process or the femtosecond laser in the prior art.

The invention provides a preparation method of an ATP (adenosine triphosphate) near infrared fluorescent probe. The method comprises the following steps of dissolving squarylium cyanine dyestuff into an organic solution to obtain a squarylium cyanine organic solution; dissolving N, N-di(2-aminoethyl)-1,2-quadrol into the organic solution to obtain an N, N-di(2-aminoethyl)-1,2-quadrol organic solution; dripping the squarylium cyanine organic solution into the N, N-di(2-aminoethyl)-1,2-quadrol organic solution; stirring the mixture in room temperature environment; removing the organic solution; performing column chromatography separation and purification to obtain the ATP near infrared fluorescent probe. The near infrared fluorescent probe prepared by the method provided by the invention has the characteristics that the ATP can be fast and sensitively analyzed; the defects of the existing fluorescent probe can be overcome; the ATP is efficiently detected; the synthesis steps are simple; the fluorescent method is used, so that the analysis is fast and convenient; interference is small.

The invention discloses a heating device of an electric automobile, which comprises an expansion tank, wherein an outlet pipe of the expansion tank is connected with an electric heater by utilizing a water pump; an inlet pipe of the expansion tank is connected with the electric heater by utilizing a water pump; the water pumps are electronic water pumps; the electric heater comprises a heating core body; at least one heating rod is arranged in the heating core body; the heating rod is connected with a power supply of the entire automobile; an aluminum pipe is arranged on the external end of a wire of the heating rod; the aluminum pipe is utilized to fix the heating core body; injection molding waste is arranged between the aluminum pipe and the wire; the aluminum pipe is welded in the heating core body; and a temperature sensor is arranged in the heating core body. The heating device of an electric automobile has the advantages of reasonable design, low cost and energy consumption reduction.

The invention relates to an optical microscope system based on liquid drop and a detection method implemented by the optical microscope system. The optical microscope system based on the liquid drop comprises an optical microscope, an ultrasonic vibrator, a container, a base plate and an electrode. The electrode is arranged on the base plate, and the base plate is arranged in the container. When the optical microscope system works, a to-be-detected object can be arranged on the electrode, liquid drop materials can be converted into the liquid drop by the ultrasonic vibrator, the liquid drop is suspended in solvents, voltages are applied onto the electrode, and the liquid drop can be shifted to spaces between a lens of the optical microscope and the to-be-detected object by dielectrophoretic force generated after the voltages are applied onto the electrode. The optical microscope system and the detection method have the advantages that the liquid drop is utilized as an optical lens, images of the to-be-detected object can be primarily amplified by the liquid drop, accordingly, influence of external interference and diffraction effects can be lowered, and the resolution can be improved; the liquid drop is suspended in the solvents and can flow along with the solvents; the liquid drop can be shifted by the dielectrophoretic force and can be fixed at specific positions; the resolution of optical microscopic technologies can be improved, and the optical microscope system is simple in structure and low in cost.

The invention proposes an active vibration isolation system for an actuator test bench based on piezoelectric ceramics, and the system is used for the actuator test bench, and can effectively preventsvarious types of external vibration line spectrums from affecting a measurement result. The system comprises a piezoelectric ceramic actuator, a driver, a feedback sensor, a signal conditioner, and acontroller. The output force of the system is greater than 4000N through employing the piezoelectric ceramic actuator, and the displacement is small, so the system meets the control demands of smalldisplacement of an actuator measurement platform and the 4000N output force of the actuator. The system can be used for eliminating the external interference of more than eight line spectrums (20Hz-200Hz). The line spectrum vibration effect is greater than 15dB, and the precision can meet the requirement of the product quality verification of an electromagnetic actuator of an active vibration isolation device.

The invention discloses an integrated multi-antenna and multiplexer module device of an MIMO system base station. A circuit of the device comprises a patch antenna set, a coplanar waveguide electric powersupply circuit, a microwave ceramics dielectric substrate with a high dielectric constant, a ground plane of the coplanar waveguide electric powersupply circuit, and an FBAR integrated multiplexer; in the structure of the integrated multi-antenna and multiplexer module device of the MIMO system base station, the patch antenna set and the electric powersupply circuit are positioned at the top surface of the microwave ceramics dielectric substrate, the ground plane of the coplanar waveguide electric powersupply circuit and the FBAR integrated multiplexer are positioned at the bottom surface of the microwave ceramics dielectric substrate, the FBAR integrated multiplexer and the ground plane of the coplanar waveguide electric powersupply circuit are arranged at the position under the coplanar waveguide electric powersupply circuit; and the patch antenna set is connected with the FBAR integrated multiplexer through the coplanar waveguide electric powersupply circuit. The integrated multi-antenna and multiplexer module device of the MIMO system base station reduces the transmission loss and realizes the miniaturization of antennas and the multiplexer module of the MIMO system base station.

An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.

A through-hole layout structure is suitable for a circuit board. The through-hole layout structure includes a pair of first differential through-holes, a pair of second differential through-holes, a first ground through-hole, a second ground through-hole, and a third ground through-hole, which are all arranged on a first line.

The first ground through-hole is located between the pair of first differential through-holes and the pair of second differential through-holes. The pair of first differential through-holes is located between the first ground through-hole and the second ground through-hole. The pair of second differential through-holes is located between the first ground through-hole and the third ground through-hole.

The invention relates to a distribution photometer system comprising a base, a first rotating shaft, a second rotating shaft, a plurality of light signal sampling units and an upper computer, wherein the first rotating shaft is positioned on the base and is also connected with a rotating arm; respective control execution modules are arranged near various execution parts of a distribution photometer; each module is internally provided with a microcomputer and a power supply unit; the modules communicate with the upper computer in a wired way or a wireless way through a three-wire, two-wire or wireless digital signal channel, so that the distribution control can be realized; meanwhile, a digital signal channel and a power supply channel in the rotating arm are conducted to the base through a conductive sliding ring arranged on the first rotating shaft. With the measures, the invention greatly reduces connecting leads in the distribution photometer, reduces the interactive interference and the outside interference among the connecting leads, and improves the reliability and the real-time property for data transmission, thereby improving the control and measuring precision of the system and being convenient to maintain and manage the system; meanwhile, the invention also solves the winding problem of a distribution photometer in the operation process.

The invention discloses an object detection device. The object detection device comprises a substrate, a platform, a drive component, a measuring module and at least one detection unit. The substrate comprises a plurality of supporting posts. The platform comprises an upper surface. The platform is parallel to the substrate and arranged on the supporting posts, and the platform is provided with an opening. The upper surface is used for loading an object, and the concave part of the object protrudes out of the upper surface. The drive component is arranged at the substrate. The measuring module is arranged at the drive component. The measuring module passes through the opening and protrudes out of the upper surface of the platform in a set height, and the measuring module is capable of moving along the detection direction relative to the substrate under the drive of the drive component. The detection unit is arranged at the upper surface. When detecting, the drive component drives the measuring module to move in the detection direction, if the detection unit discovers that the object moves along with the measuring module, the depth of the concave part of the object is smaller than or equal to the set height. The object detection device is capable of automatically detecting the object and avoiding the error and operation difficulty due to manual detection and enables the object to be detected effectively.

A current sensing module for measuring a current includes a conductive substrate, a frame, a circuit board and a magnetic sensor. The conductive substrate has two terminals and at least one slot. The frame has two side portions and a bottom portion, wherein the bottom portion connects the two side portions to form an opening ring-shape. At least one of the two side portions is disposed in the at least one slot, such that the two side portions surround a partial path of the current. A gap exists between two top ends of the two side portions. The circuit board is disposed with respect to the conductive substrate. The magnetic sensor is connected to the circuit board and located in a space between the two side portions rather than in the gap. The magnetic sensor senses the current and generates a first current sensing signal correspondingly.

An optical keyswitch includes a casing having a movable portion, a shaft movably disposed on the casing, a resilient member accommodated in the casing, and a switch module including a circuit board, an emitter, and a receiver. The emitter emits an optical signal along an optical path to the receiver. When the shaft is at a non-pressed position, the movable portion has a first spatial relation with the optical path, and the receiver receives the optical signal of a first intensity. When the shaft moves, in response to a pressing force, to a pressed position, the shaft compresses the resilient member and pushes the movable portion to move, so the movable portion no longer has the first spatial relation with the optical path, the optical signal received by the receiver has a second intensity different from the first intensity, and the switch module is triggered to generate a triggering signal.

A polarization-maintaining multi-core fiber includes a plurality of fiber core areas and a main outer cladding. The fiber core areas include one central fiber core area, and two or more than two outer fiber core areas equidistantly and uniformly arranged around the central fiber core area that is a polarization-maintaining fiber core area. Each outer fiber core area includes a fiber core and an inner cladding surrounding a core layer. A portion outside the fiber core areas is the main outer cladding. The fiber can greatly enhance spectral efficiency of an optical transmission system, and improve fiber communication capacity. The arrangement of the polarization-maintaining fiber core area provides a waveguide structure with a function of maintaining polarized light, which can be used for transmission of local light.

The invention relates to an electromagnetic stamping method and device. The electromagnetic stamping method comprises the steps of dividing a blank holder of the electromagnetic stamping device into a plurality of blank pressing areas according to contour features of a to-be-stamped part; according to the shape features of each blank pressing area, setting a blank pressing force function changing along with time for each blank pressing area; for each blank holding area, collecting blank holding force data every cycle period t0, and calculating the error between the blank holding force data and the value of the blank holding force function at the current time; and according to the error, controlling the blank holder force of each blank holder area, and stamping a plate under the blank holder force to obtain a to-be-stamped part. According to the electromagnetic stamping method provided by the invention, the blank holder force is controlled in real time according to the fluidity characteristic of the plate in the stamping process, accurate loading of the dynamically changed blank holder force is realized, the blank holder force loading precision and the forming quality are improved, the energy consumption in the blank holder process is reduced, and the influence of electromagnetic coupling among multiple magnetic fields and the external interference are weakened.