30results about How to "Reduce sources of interference" patented technology

The invention relates to a labeling machine used for installing a handle on a PET container, especially relates to a labeling macine used for labeling the PET container. The labeling machine comprises a container input part, a conveying unit having a plurality of rotating discs used for aligning the container, a labeling machine group, and a container output part. An outer periphery of a conveying unit is provided with a handle supplying device used to install the handle on the container.

The invention provides ultrasonic diagnosis equipment and a method for reducing ultrasonic echo data interference. The method comprises the following steps: periodically transmitting multi-line echo data by controlling an ultrasonic probe; transmitting one line echo data in one transmission period, wherein each transmission period comprises a first time period and a second time period, and the transmission of each line echo data is completed in the second time period of each transmission period; and transmitting a part of the first information in the first time period of the transmission period, so that the first information and the multi-line echo data are transmitted in a time-sharing manner. Therefore, the echo data is not interfered when the first information is transmitted, the interference source of the echo data is reduced, and the quality of ultrasonic images is improved.

The invention provides an SIR testing system, comprising a control box; a programmable high voltage power supply in connection with the control box to provide power supply to the control box; an industrial personal computer in connection with the programmable high voltage power supply to control the programmable high voltage power supply; a programmable switch in connection with the control box to realize the switching among a plurality of testing channels; a switchboard connected with the control box, the industrial personal computer and the programmable switch respectively to provide a signal channel; an externally provided box in connection with the programmable switch; an environmental test chamber in connection with the industrial personal computer and an ammeter in connection with the control box to measure. Compared with the prior art, the testing system of the invention has the following advantages: 1) simplifying repetitive testing procedures; 2) avoiding errors of manual measurement; and 3) conducting more advanced data analysis.

The invention discloses a sound inspecting and compensating device and method based on a machine vision technology and aims at providing a sound inspecting and compensating method which is not easy for bringing other distortion. The whole method comprises the following flow steps of: marking at an inspected part on a loudspeakercone by using a nite writer pen; fixing a loudspeaker; aligning a lens of a camera to the loudspeakercone, wherein the vibration direction of a phosphor dot on the loudspeakercone is vertical to the lens direction of the camera; playing a disk with a standard sound source; meanwhile, shooting by using the camera, processing the shot picture and analyzing the frequency spectrum of the phosphor dot; comparing the frequency of the disk with the standard sound source with the frequency spectrum to obtain the deviation of a sound system; and compensating the short or superfluous frequency in front of the loudspeaker. A waveform graph of the phosphor dot actually reflects the frequency spectrum of sound made by the loudspeaker, and the final sound can infinitely approximate the output of a sound source through frequency compensation. The sound inspecting and compensating device and method are suitable for inspection and correction of all sound systems.

The invention discloses an intelligent street lamp control system, which includes a control terminal, a server, a wide area network, an intelligent street lamp local area network, and an intelligent LED street lamp; The intelligent street lamp single lamp of the intelligent street lamp LAN, in which the intelligent street lamp LAN adopts the radio frequency wireless communication mode based on 780MHz, combined with the basic layout of the star network architecture, not only ensures that the wireless channel interference source is small, the signal transmission is stable and reliable, but also ensures the open Operation commands such as turning off lights and dimming are consistent in time, the on-site control effect is uniform, and there is no obvious delay. At the same time, a single light controller, gateway controller, centralized controller, and The data acquisition module can not only accept adjustment instructions from the control terminal, but also collect environmental information as feedback to realize intelligent city management.

The invention discloses an intelligent LED street lamp, which includes several intelligent street lamp single lamps. The intelligent street lamp single lamps include: a type 1 single lamp and a type 2 single lamp, and a gateway controller and an integrated controller in the two constitute an intelligent street lamp Local area network, the intelligent street lamp local area network is based on the radio frequency wireless communication mode of 780MHz, with the server as the main station, the integrated controller as the substation, and the gateway controller as the base station to form the basic layout of the star network architecture, which not only ensures that there are few wireless channel interference sources, The signal transmission is stable and reliable, and at the same time, it also ensures the consistency in time of issuing operating commands such as switching lights and dimming. The on-site control effect is uniform and there is no obvious delay. , gateway controller, centralized controller, and data acquisition module can not only accept adjustment instructions from the control terminal, but also collect environmental information as feedback to realize intelligent city management.

The invention belongs to the field of mechanical transmission, and relates to a novel structure for inhibiting redundant freedom degree of a planet row floating piece. A plurality of gear teeth on anouter drum of a gearbox brake drum A in the structure are machined into a circular arc, the circular arc is in clearance fit with the gear teeth of a friction plate B, and the plurality of gear teethon both sides of the circular arc on the outer drum of the gearbox brake drum A are milled out according to the inner diameter of an addendum circle of the gear teeth in the gearbox brake drum to formgrooves; and a cylindrical pair is formed between the friction plate B and the outer drum of the gearbox brake drum A in the axial direction. The novel structure has the advantages that the redundantfreedom degree in the design of the planet row floating gear ring is inhibited, interference sources of unstable factors in the combining and separating process of the friction plate are reduced, andthe risk that the friction plate, the planet row floating gear ring, even a whole planet gearbox bearing and the like are damaged and lose efficacy due to burning of the friction plate is greatly reduced; and the reliability of the friction plate, the planet row floating piece and even the whole planet transmission equipment is improved.

The invention discloses a method and device for achieving the positioning and shearing control of a flying shear by process software, solving the problem of high cost, unstable signal and the like in the prior art. In the invention, a speed presetting module, a position presetting module and a function switch module are self-defined in the process software or a programmable block carried in a transmission device; an approach switch is arranged at the clipped corner position of a flying shear; the function switch module completes the switch control between the speed presetting module and the position presetting module through receiving the shear command of an external system and a signal sent by the approach switch; and the correct control of the positioning and shearing of the flying shear can be completed by controlling inside the transmission device. The method and the structure greatly reduce control hardware, bear low interference degree of the external signal, save the cost, are simple in operation, and have low requirement on an operator.

The invention discloses a generating device of a large-amplitude ultra-high speed synchronization pulse. The generating device of the large-amplitude ultra-high speed synchronization pulse comprises an input signal shaping circuit and a synchronization pulse generating circuit, wherein the input signal shaping circuit is used for shaping input trigger pulse signal to output low voltage positive pole emitter coupling logic (LVPECL) reference level signal, and the synchronization pulse generating circuit is used for generating the large-amplitude ultra-high speed synchronization pulse with the LVPECL reference level signal as trigger signal. No transistor with an extremely high working voltage is needed in the generating device and method of a large-amplitude ultra-high speed synchronization pulse, therefore, voltage demand on a direct current voltage source is not high. Key functions of the generating device and method of a large-amplitude ultra-high speed synchronization pulse is achieved by a multilevel broadband transistor circuit which can send out positive pulse and negative pulse with pulse front smaller than 200ps and amplitude close to 15V. Meanwhile, compared with input synchronization pulse, delaying time shake of output synchronization pulse is small and smaller than 20ps.

This invention relates to a fourier spectrometer based on dynamic stable scanning technology<0}. Wherein, it comprises a white light and laser source, an optical system mainly with Michelson interferometer, a feedback module to detect and convert the weak optical signal into electric signal, an A / D control module, an actuator module to control the phase difference of two arms of the interferometer, and a measurement module to detect the feedback and actuator modules for locked phase condition. This invention overcomes the defects in prior art, and can large-stroke continual scan with high precision, resolution and SNR.

This invention provides a testing method for the engine winch's rotation angle and speed, it includes taking advantage of a signal processing cell, which can calculate the winch dynamic sampling signal from the gear information sensing by the sensor of the winch's rotating angle. Taking advantage of the scatter dynamic model, it can design an estimate cell including the estimator and feedback attenuation matrix to read the dynamic sampling signal of the winch, and work toward to the estimating rotating angle and speed in the close circuit current. This invention also consists of taking advantage of the judging cell for the rotation of the winch which can assistant the signal processing cell to accurately calculate the dynamic signal of the winch, and reduce the interface from the outside and reduce the effectiveness of the engine controlling.

The invention belongs to the technical field of millimeter wave communication and instrument control system, and in particular relates to a millimeter wave wireless instrument control system. The present invention is composed of a terminal equipment module, an intelligent control station module, a data center module, a millimeter wave digital transmission module, and an optical fiber backbone module. The measuring instrument device transmits the data information to be sent to the millimeter wave digital transmission module, and the millimeter wave digital transmission module will The information is sent to the intelligent control station through the millimeter wave. The intelligent control station analyzes the received information and transmits it to the remote data center module through the optical fiber backbone. The data center module receives the data information from the instrument device and analyzes it. After processing, the issued instructions are transmitted to the intelligent control station through the optical fiber backbone, and the intelligent control station then sends the instruction information to the execution device through the millimeter wave. Finally, the execution device completes the instruction, which overcomes the confusion of the traditional wired instrument control line and maintenance. Difficulty, not conducive to extended maintenance and other issues.