32results about How to "Applicable transmission" patented technology

An optical fiber transmission device based on hollow light guiding cone coupling for vacuum-transmitting high-capacity laser is provided. A hollow light guiding cone is connected to the input end of the optical fiber, and small injection light spots are obtained by the hollow light guide cone to implement laser optical fiber coupling transmission. The hollow light guiding cone and the interior of the optical fiber are vacuumed or injected with inert gas to enlarge laser capacity of the optical fiber transmission system and enhance output beam quality. The invented device enlarges the lighted area on the laser input end surface effectively, reduces laser power density of the input end surface, and lowers laser damage probability. Linear and nonlinear wastage is decreased by vacuuming the laser transmission path, and the transmission efficiency of the optical fiber transmission system is increased. The invented device is provided with a simple structure, strong innovation and an evident effect.

The invention discloses a lifting transmission rail, and belongs to the production field of car equipment. The lifting transmission rail comprises a transmission plate, a base plate, a first connecting plate, a second connecting plate and pulleys, wherein the upper surface of the transmission plate is a trapezoid concave surface, sliding grooves are formed in two sides of the lower surface of the transmission plate in the transmission direction, studs arranged at equal intervals are arranged at one side of the first connecting plate, and the top end of the first connecting plate is shaped like a U. The pulleys are connected inside the U-shaped position through bolts, the tops of the pulleys are tangent with the upper surface of the sliding groove of the transmission plate, the number of the pulleys is N, and the pulleys are evenly distributed under the transmission plate. The second connecting plate is provided with N bolt holes corresponding to the studs on the first connecting plate, and the bottom surface of the second connecting plate is fixed to the base plate. The lifting transmission rail utilizes the bolts for limitation, further the height of the transmission rail is regulated stably and reliably, and the transmission rail adopts a special structure and prevents conveyed articles from sliding off easily, thereby improving conveying efficiency.

A television and network transmission integration device modulates 802.11a/802.11b/802.11g signal to )-65MH signal which can be adaptive transmitted in coaxial cable through impedance conversion, signal amplifying and filtering. Said invention can be used in cable TV network data transmission, wireless network domestic covering, digital TV STB and interactive television.

The invention discloses a method for XML-based data transmission between SAP systems. Data content and formats are encapsulated in the standard XML so as to realize data transmission between the SAP systems. Architectural differences of system business data can be shielded, and particularly, interface definition differences between the systems can be shielded by application of the standard data type STRING, and thus, data interface unification can be realized. The XML-based method is applicable to data transmission after changing of the two systems.

The invention discloses a novel lifting antiskid transmission rail, and belongs to the production field of automobile equipment. The novel lifting antiskid transmission rail comprises a transmission plate, antiskid plates, pulleys, sleeves, sleeve columns, a base, a first connecting rod and a second connecting rod, wherein the upper surface of the transmission plate is a trapezoidal concave surface, and the two sides of the lower surface of the transmission plate are provided with the sawtooth-shaped antiskid plates; first thread holes are formed in one sides of the sleeves at equal intervals, and the sleeves are connected with the pulleys through bearings; the tops of the pulleys are tangent to the lower surfaces of the antiskid plates; N pulleys are provided, and are evenly distributed at the bottoms of the antiskid plates; the sleeve columns are provided with N second thread holes corresponding to the first thread holes in the sleeves and having the same size with the first thread holes in the sleeves; N is an integer; the first thread holes and the second thread holes are connected by thread pins, and are fixed by nuts; and the bottom surfaces of the sleeve columns are fixed on the base. The combination of the thread pins and the thread holes is used for limiting, and the height of the transmission rail is adjusted to achieve the effects of stability and reliability; and the sawtooth-shaped antiskid plates can enable transported pieces to be not slipped from the two sides to fail to slide along the antiskid plates, so that the transportation efficiency is improved.

The invention discloses a dual-polarized leakage waveguide comprising a rectangular waveguide and a pair of rectangular flanges which are welded at both ends of the rectangular waveguide respectively. The rectangular waveguide is an integrated structure including two rectangular cavities arranged in parallel in the length direction side by side. The two rectangular cavities include a first waveguide cavity and a second waveguide cavity. The first waveguide cavity comprises a first upper wide surface, a first lower wide surface and a front narrow surface. The second waveguide cavity comprises a second wide surface, a second lower wide surface, and a rear narrow surface. The first waveguide cavity and the second waveguide cavity are isolated by a common narrow surface. The height of the common narrow surface is the same as the height of the front narrow surface and equal to or greater than the height of the rear narrow surface. The first upper wide surface and the second upper wide surface are provided with a plurality of leakage slits which generate vertical polarized waves and horizontal polarized waves. The application of multi-input multi-output technology is achieved on one leakage waveguide so that not only system channel capacity is increased, but also a system frequency range is expanded.

The invention discloses a centimeter wave/millimeter wave ultra-wideband signal generation device based on combination of a microwave photon external modulation technology and an up-conversion technology, and belongs to the technical field of microwave photonics. The device comprises a laser source, a coupler 1, a coupler 2, a polarization controller 1, a polarization controller 2, a double-parallel Mach-Zehnder modulator, a Mach-Zehnder modulator, an arbitrary waveform generator, a microwave signal source, a direct-current voltage-stabilizing source 1, a direct-current voltage-stabilizing source 2, a direct-current voltage-stabilizing source 3, a direct-current voltage-stabilizing source 4, an erbium-doped optical fiber amplifier, an adjustable optical filter, an adjustable optical delay line, a balanced photoelectric detector, a spectrum analyzer and an oscilloscope. The device can generate centimeter-wave ultra-wideband signals and millimeter-wave ultra-wideband signals, and is suitable for an indoor ultra-wideband communication system and an outdoor ultra-wideband radar system. Compared with other methods, the method for realizing the up-conversion technology based on single side band modulation has better flexibility and stability, and is more suitable for transmission of ultra-wideband signals in long-distance optical fibers.

The invention discloses a device and method for carrying wireless data exchange between a computer and a smart phone terminal. The device comprises an NFC charging board which is used for receiving wireless data sent by the smart phone terminal with an NFC module; an RS232 interface which is used for connection with a computer terminal; a USB interface which is used for realizing communication between applications of the computer terminal and the smart phone terminal; a wireless sending module which is used for sending a read/write instruction to the smart phone terminal by the computer terminal; and a controller which is connected with the NFC charging board, the RS232 interface, the USB interface and the wireless sending module at the same time. According to the device and the method, through application of the structure and the method, the application range of a near filed communication technology is expanded; the device and the method are applicable to low data quantity transmission between the smart phones, and are also applicable to high data quantity wireless communication between the computers, and between the computer and the smart phone terminal; and the transmission efficiency of the wireless near filed communication technology is greatly improved through technical breakthrough of differential bidirectional read/write.

The invention discloses a real-time reconstruction method of smart meter data based on compressed sensing, includes the following steps: S1: the transmission model of meter data based on real-time compressed sensing is mainly composed of three parts: smart meter, access point and control center; S2: compression sensor-automatic encoder proposed in this invetion is mainly composed of two parts: compression encoding and reconstruction encoding; S3: in the signal compression encoding part, data are mainly compressed to reduce the circuit communication link; S4: when signal reconstruction encodingis performed,the time consumed is very short, so that the method is very suitable for the transmission of smart meter data with high real-time requirements.

The invention provides an Al-Cu-Mg-Zr series aluminum alloy for a cable. The Al-Cu-Mg-Zr series aluminum alloy comprises the following components of, by weight, 0.03-0.09% of Cu, 0.01-0.03% of Zr, 0.02-0.08% of Mg, 0.2-0.4% of modified graphene, and the balance Al and impurities. The modified graphene is mainly prepared from nano-TiO2, Fe powder, lanthanum oxide, zinc powder and graphene powder. The aluminum alloy not only has low resistivity, but also has good creep resistance.

The invention provides an Al-Cu-Mg-Mn-series aluminum alloy for a cable. The Al-Cu-Mg-Mn-series aluminum alloy comprises the following components of, by weight, 0.03-0.09% of Cu, 0.2-0.4% of Mn, 0.02-0.08% of Mg, 0.04-0.08% of Sc, 0.2-0.4% of modified graphene, and the balance Al and impurities. The modified graphene is mainly prepared by nano-TiO2, Fe powder, lanthanum oxide, zinc powder and graphene powder. The aluminum alloy is low in resistivity, and good in creep-resistant performance and fatigue-resistant performance.

The invention provides aluminium alloy for cable with high conductivity, containing the following components in weight percentage: 0.03-0.09% of Cu, 0.2-0.8% of Ca, 0.8-1.6% of Ga, 0.2-0.4% of modified graphene, and the balance of Al and impurities; the modified graphene is mainly prepared from nanometer TiO2, Fe powder, lanthanum oxide, zinc powder and graphene powder. The aluminium alloy not notis low in electrical resistivity, but also is good in creep resistance and fatigue resistance.

The invention discloses a lifting antiskid transmission track, and belongs to the field of automobile device production. The lifting antiskid transmission track comprises a transmission plate, antiskid plates, wheels, first supporting plates, second supporting plates, a base, a first connecting rod and a second connecting rod. The upper surface of the transmission plate is a trapezoid-shaped concave face. The zigzag antiskid plates are arranged on the two sides of the lower surface of the transmission plate in the transmission direction. Studs which are distributed at equal intervals are arranged on one side of each first supporting plate and are connected with the corresponding wheels through bearings. The top of each wheel is tangent to the lower surface of the corresponding antiskid plate. The number of the wheels is N, wherein N is an integer, and the wheels are evenly distributed at the bottoms of the antiskid plates. N screw holes corresponding to the studs on the first supporting plates are formed in the second supporting plates, and the screw holes and the studs are fixed through nuts after being connected. The bottom faces of the second supporting plates are fixed to the base. Limiting is conducted through bolts, and then the height of the transmission track is stably and reliably adjusted; the special structure is adopted for the transmission track, transported pieces can not slip from the two sides and are not prone to sliding along the antiskid plates, and therefore the transportation efficiency is improved.

The invention relates to a PCB-passing connector capable of being observed and verified from the front, which comprises a PCB, an inverted U-shaped female terminal and a male terminal, and is characterized in that a plug hole is formed in the PCB; two ends of the inverted U-shaped female terminal are fixedly connected to the PCB, and the inverted U-shaped female terminal is provided with a connecting hole; and the male terminal comprises a columnar connecting pin with a tip, the connecting pin firstly penetrates through the plug hole and then penetrates through the connecting hole, the outer wall surface of the connecting pin and the connecting hole form a four-section contact structure, and meanwhile, forward observation and verification of the four-section contact structure can be achieved from the front of the inverted-U-shaped female terminal. Compared with the prior art, a four-section contact structure is achieved through the connecting structure formed by the inverted-U-shaped female terminal and the PCB, meanwhile, forward observation and verification of the four-section contact structure can be achieved from the front face of the inverted-U-shaped female terminal, a clearpicture of a contact area can be obtained through image acquisition equipment, and therefore rapid machine inspection of the industrial robot is achieved.

The invention provides an aluminum alloy material for power cables, comprising, by weight, 0.01-0.03% of Cu, 0.002-0.006% of Mg, 0.003-0.009% of Ru, 0.001-0.02% of In, 0.005-0.012% of Be, 0.002-0.01%of Bi, 0.001-0.005% of Sr, 0.16-0.32% of modified graphene, 0.06-2.3% of Re, and the balance being Al and impurity. The modified graphene is prepared from nano nickle oxide, aluminum powder, bismuth oxide, zinc powder and graphene powder. The aluminum alloy material for the power cables has high conductivity, good creep-resistance capacity and good fatigue resistance performance.

The invention provides an aluminum alloy cable core, comprising the following components by weight percentage: Mg 0.02-0.08%, modified graphene 0.2-0.4%, and the balance of Al and impurities. The modified graphene is mainly prepared from nanometer TiO2, Fe powder, B powder, copper powder and graphene powder. The aluminum alloy cable core not only has low electrical resistivity, but also has good creep resistance.