32results about How to "Applicable transmission" patented technology

The invention discloses a simple anti-slip conveying belt which comprises a conveying belt body in a strip-shaped structure. The conveying belt is characterized in that blocking strips are arranged on the two sides of the conveying belt body; the bottom edge of the conveying belt body is a planar structure; a detachable anti-slip element is arranged on the upper surface of the conveying belt body. The conveying belt is novel in structural design, convenient to use, good in anti-slip effect and suitable for conveying of various articles.

The invention relates to a cylinder floating type double-active-roller feeding mechanism. The mechanism comprises a machine body (1), a movable working table (2), cylinders (4), swing frames (5) and a feeding roller (6), wherein the movable working table (2) is mounted at the top of the machine body (1); two cylinders (4) are respectively arranged on two side walls of the machine body (1); the tail parts of the cylinders (4) are hinged to the side walls of the machine body (1); each cylinder (4) is hinged with one swing frame (5); the swing frames (5) comprise swing frame bodies (51), cylinder connecting plates (53) and hinge plates (54); the cylinder connecting plates (53) are arranged at one sides of the swing frame bodies (51), and the hinge plates (54) are arranged at the other sides; extension shafts of the cylinders (4) are hinged with the cylinder connecting plates (53); the hinge plates (54) are hinged with the machine body (1); and shafts at two ends of the feeding roller (6) are matched and connected with bearings in bearing holes (52) at two aides of the machine body (1). The cylinder floating type double-active-roller feeding mechanism has the advantages of good feeding stability, high efficiency and adjustment convenience.

The invention relates to a PCB board connector capable of observing and verifying the annular gap on the back, comprising a PCB board, a positive U-shaped female terminal and a male terminal, wherein the PCB board is provided with a plug-in hole; the two ends of the positive U-shaped female terminal are fixed Connected to the PCB board, the positive U-shaped female terminal is provided with a connection hole; the male terminal includes a columnar connection pin with a tip, the connection pin first passes through the connection hole and then passes through the insertion hole, the The outer wall surface of the connecting pin and the connecting hole form a 4-segment contact structure, and at the same time, the frontal observation verification of the 4-segment contact structure can be realized from the visual annular gap formed by the back of the plug hole 11 and the male terminal 3 . Compared with the prior art, the present invention realizes a 4-section contact structure through the connection structure formed by the positive U-shaped female terminal and the PCB board, and at the same time, a clear photo of the contact area can be obtained through the image acquisition device, so as to realize the industrial robot. Quick machine inspection.

The invention relates to the transmission control of a wavelength division multiplexing system (WDM) in a fiber optic transmission system and proposes a transmission control method of a WDM transmission system. A channel is selected on an array wave-guide grating (AWG) at the transmitting end at intervals to carry out multi-channel signal transmission under the situation of not changing the current WDM system; the interval amount is an integer parameter m which is larger than zero, but less than one second of the amount of the channels; the channel of a receiving end AWG corresponding to the channel of the transmitting end AWG transmission signal receives the original signal transmitted by the AWG channel of the transmitting end, downloads and carries out transferring or continuously transmitting; the demodulating signal of the original signal is received in the neighboring channel of a receiving channel and the information is selected by filter or directly picked up. The transmissioncontrol method of a WDM system provided by the invention can simultaneously realize the demodulating and de-multiplexing of a nonreturn-to-zero phase position demodulating mode in the wavelength division multiplexing system without needing to carry out any alternation on the original system or adding any apparatus and is suitable for transmitting a nonreturn-to-zero (NRZ) signal and a nonreturn-to-zero differential phase shift keying(NRZ-DPSK) signal with different speeds.

The invention discloses a dual-polarized leaky waveguide, which comprises a rectangular waveguide and a pair of rectangular flanges, the rectangular flanges are respectively welded to the two ends of the rectangular waveguide, and the rectangular waveguide has an integrated structure, including two The rectangular cavities arranged in parallel are respectively a first waveguide cavity and a second waveguide cavity, the first waveguide cavity includes a first upper wide surface, a first lower wide surface and a front narrow surface, and the second waveguide cavity includes a first The second upper wide surface, the second lower wide surface and the rear narrow surface, the first waveguide cavity and the second waveguide cavity are separated by a common narrow surface, and the height of the common narrow surface is the same as that of the front narrow surface, and is greater than or equal to The height of the rear narrow surface, the first upper wide surface and the second upper wide surface are respectively provided with a plurality of leakage slits for generating vertically polarized waves and horizontally polarized waves. The invention realizes the application of the multi-input multi-output technology on a leaky waveguide, not only improves the channel capacity of the system, but also expands the frequency range of the system.

The electronic cooler comprises a micro channel evaporator and a condenser. The said micro channel evaporator possesses a metal base with high thermal coefficient, and micro channels are enclosed base seat arranged along region of the base plane. Micro channels of the evaporator through steam pipe and liquid pipe is connected to the condenser forming a one-way cycle loop in series. The micro channel evaporator is located in space position below the condenser, making working fluid cycle in loop. In the invented cooler, heat quantity of heating electronic component (chip) drives circular flow of working fluid in loop composed of micro channel evaporator, steam pipe, condenser and liquid pipe without need of rotational mechanical pump so as to provide features of compact structure, simple, no noise, small size, high thermal conduction, and good cost performance ratio.

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.

A user access method and device for minimizing transmission delay in an air-space-ground fusion network relate to the technical field of air-space-ground fusion networks. At present, the air-space-ground fusion network is used to assist the summary of the data transmission process in remote areas, because the link state is always changing dynamically, resulting in poor reliability of the communication link. The method of the present invention obtains the signal receiving forms of the aircraft and the satellite receiving end respectively, calculates the receiving signal-to-noise ratio of the aircraft end, obtains the interruption probability of the ground user-aircraft and the satellite communication link, and then calculates the data of the user-aircraft and the satellite The average number of packets sent, and the data transmission delay is obtained. When the user faces a variety of air platforms, the user access method aiming at minimizing the transmission delay is planned, and the optimization problem is decomposed into some independent sub-problems. The heuristic user access algorithm proposed by the method obtains the user access result. This method can be widely used in the field of air-space-ground fusion network.

The invention discloses a vehicular ad hoc network video transmission method based on an overlay structure. The method mainly solves the problem that in the prior art, a node with needs for video cannot find a proper video source node is solved. The method comprises the implementation steps that (1) a cluster structure based on content awareness is built according to the position of the node, video stored in the node and the needs of the node for the video; (2) a distribution list of the video in a cluster is built at a cluster head, and is used for constructing the overlay structure; (3) the node in the cluster searches for the optimal source node according to the overlay structure, and request information is sent to the optimal source node; (4) the cluster head sends video request information to an RSU firstly, the RSU returns video information to the cluster head, and the communication between the cluster head and the RSU is achieved. According to the method, the node with the needs can find the optical video source, transmission delay is reduced, video playing quality is improved, and the method can be used for video transmission in a vehicular ad hoc network.