30results about How to "With transmission" patented technology

The invention discloses a manufacturing method of a multilayer flexible circuit board. The manufacturing method comprises the steps of (1) manufacturing a double-sided FPC flexible board; (2) manufacturing a novel material layer structure; (3) hot-pressing at least one group of novel material layer structures on the circuit on the upper surface and / or the lower surface of the double-sided FPC flexible board, and forming a protective layer on the circuit of the outermost novel material layer structure and / or the exposed circuit of the double-sided FPC flexible board to obtain the multi-layer flexible circuit board. The invention further discloses a multi-layer flexible circuit board manufactured by implementing the method. According to the invention, the manufacturing process is simplifiedand convenient, and the production efficiency is high; the manufactured multi-layer flexible circuit board not only greatly simplifies the novel material layer structure and reduces the overall thickness, but also has the function of transmitting high-frequency signals at a high speed, and is particularly suitable for novel 5G technological products; the protective and resistant effects on the copper ion migration phenomenon during the electrification between the circuits are achieved, and the safe and normal work of the circuits is guaranteed.

The invention discloses a multi-functional ultraviolet-visible spectrometer, which comprises an ultraviolet-visible light source, a fixed convex lens, an adjustable diaphragm, a movable convex lens, a turning apparatus, a charge coupled device (CCD) miniature spectrometer and a microcomputer. The multi-functional ultraviolet-visible spectrometer of the invention has a reflectance spectrum test function, a transmittance spectrum test function, an absorption spectrum test function, a scattered spectrum test function and a fluorescence spectrum test function, and can measure variations of the spectrum and the spectral intensity with angles through rotation of a sample table turning apparatus and a light-guide fibre turning apparatus, thereby obtaining a reflectance spectrum, a transmittance spectrum, a absorption spectrum, a scattered spectrum and a fluorescence spectrum which have angle resolution capability.

The invention relates to a naturally-cooled integrated base station power supply system. A power supply module unit, a monitoring unit, a lightning arrester and an electric meter are arranged in a boxbody of a power supply box assembly. The outer side of a back plate of the box body is connected with radiating fins through heat conduction silica gel. A bottom plate of the box body is provided with a signal interface and a plurality of power input and output interfaces, and is externally provided with a grounding unit. A battery unit is installed in installation grooves of a box door and a door inner side plate and is connected with the power supply module unit. The monitoring unit arranged on the door inner side plate is connected with the power supply module unit, the electric meter andthe battery unit. A data communication interface on the monitoring unit is led out through a signal interface. The monitoring unit is in communication connection with an NB-IoT wireless internet access module installed on the box body. An installation support on one side of the box body is detachably connected with an optical cable terminal box assembly through a fastener. According to the invention, the optical cable terminal box assembly and the power supply box assembly can be flexibly configured, rapid installation is realized, field operation, maintenance and capacity expansion are convenient, and the heat dissipation effect is good.

The invention relates to a multi-direction magnetic medium temperature-sensitive ticket checking module. The multi-direction magnetic medium temperature-sensitive ticket checking module comprises a lower ticket inlet, an upper ticket inlet, a photoelectric sensor, an automatic springback wedging block, an upper lifting board, a driven roller, a read head device, a head pressing pin, a write head device, an equipment supporting board, a printing mechanism, a ticket outlet, a main drive motor, a drive wheel set, a manual rotary knob, an inlet ticket main drive wheel set, an inlet ticket drive motor, a drive synchronous belt and a control module. The multi-direction magnetic medium temperature-sensitive ticket checking module has the functions of magnetic information reading, type-in, correction, printing, communication, driving and the like, a ticket channel can be partially opened, magnetic medium temperature-sensitive tickets plugged by passengers in random directions can be detected automatically, the states of key mechanisms can be fed back in real time, working personnel can take out blocked tickets through simple manual operations without the need of maintenance tools when tickets are blocked, and therefore the ticket checking efficiency is improved.

The present invention provides an antenna, a ground control system for an unmanned aerial vehicle, and an unmanned aerial vehicle system, wherein the antenna (100) includes a substrate (1), a plurality of dipoles (2) printed on the substrate, A feed network (3) and a grounding plate (4), the dipole (2) includes an oscillator unit (20) arranged on one side of the substrate (1) and an oscillator unit (20) arranged on the other side of the substrate (1) The oscillator unit (20), wherein the oscillator unit (20) includes a first oscillator (21) and a second oscillator (22); the feed network (3) is connected to each oscillator unit (20); the The base plate (1) and the grounding plate (4) are arranged in parallel with a preset distance. The antenna of the embodiment of the present invention has good matching performance and radiation performance, improves the gain of the antenna, and has a long data transmission distance.

The invention discloses an information collecting and monitoring system and an information collecting and monitoring method of a clean operating room. The information collecting and monitoring system of the clean operating room comprises a plurality of information collecting and monitoring devices, a plurality of purifying air conditioner control devices, a nurse station main server, GPRS DTU (general packet radio service data transfer unit) wireless network transmission equipment connected with the nurse station main server, and a remote monitoring and diagnosing host connected with an Internet network and having a fixed IP (internal protocol) address. The information collecting and monitoring method of the clean operating room comprises the following steps: 1, field data collection; 2, pretreatment of data wireless transmission; 3, the data wireless transmission: namely, the GPRS DTU wireless network transmission equipment transfers data to the remote monitoring and diagnosing host through a GPRS network and the Internet network; and 4, field data remote motoring and diagnosis. The information collecting and monitoring system and the information collecting and monitoring method of the clean operating room have reasonable designs, are simple and convenient to operate, and further, have good usage effects and high practical value, and the problems that a conventional information collecting and monitoring system of the clean operating room has low efficiency, low communication speed, a complicated protocol and the like can be effectively solved.

The present invention provides a high-density Fe-N 4 The invention discloses a preparation method and application of an active site oxygen reduction electrocatalyst, belonging to the field of polymer electrolyte membrane fuel cell catalysts. The metal zirconium salt is evenly dispersed in the solvent, wherein, Zr in the zirconium salt 4+ The concentration in the solvent is 2-8mg / ml, add two kinds of macrocyclic compounds including macrocyclic compound Ⅰ, metal macrocyclic compound Ⅱ and organic acid, under the condition of 20-40℃, ultrasonic treatment for 10-30min, at 120℃ React for 8-12 hours, filter with suction, wash until the filtrate is colorless, dry, and pyrolyze at 600-900°C for 1-2 hours to obtain high-density Fe-N 4 Active-site oxygen reduction electrocatalysts. The invention is simple to operate, easy to control, and environmentally friendly, and the prepared high-density Fe-N 4 Active-site oxygen-reducing electrocatalysts with excellent oxygen-reduction activity can be used in polymer electrolyte membrane fuel cells.