24results about How to "Achieve concealment" patented technology

The invention discloses a device-to-device covert communication system jointly assisted by an unmanned aerial vehicle (UAV) and an intelligent reflector (UIRS), and the system comprises the steps: building a D2D covert communication model jointly assisted by the UAV and the UIRS, including communication links between entities, and calculating an average minimum error detection probability and a maximum communication rate; the sender sends the hidden signals to the UIRS, the UIRS forwards the hidden signals to the receiver, and the UIRS changes the angles of the corresponding incident hidden signals and the angles of the corresponding reflected hidden signals through component elements; a frequency spectrum sharing cellular user sends a cellular signal to a base station, meanwhile, the base station sends an interference signal, an uncertain factor is introduced at a Willie receiving end of an eavesdropper, and the concealment of a UIRS combined auxiliary D2D communication link is realized; the eavesdropper Willie monitors whether the UIRS combined auxiliary D2D communication link transmits the hidden signal or not; the concealment is measured through the average minimum error detection probability; the maximum communication rate of the UIRS combined auxiliary D2D communication link is obtained under multiple constraints such as the average minimum error detection probability, the cellular communication link outage probability, the sending power and the sending power of interference signals, and the communication rate of the system is effectively improved under the combined assistance of the unmanned aerial vehicle and the intelligent reflector UIRS.

The invention provides a double-layer jacquard fabric interlayer weaving process and a double-vision artistic effect realization method, and the method comprises the following steps: providing warp yarns, weft yarns and interlayer connecting yarns which are adaptive to double-layer jacquard, and the breaking strength of the interlayer connecting yarns is not less than 3.2 cN / dtex; the method comprises the following steps: importing surface layer jacquard pattern data and inner layer jacquard pattern data into a pattern weaving CAD system, presetting a yarn interweaving threshold value and pattern edge transition parameters of an interlayer connection area, generating a collaborative weaving data table of surface and inner layer jacquard and interlayer connection, marking corresponding interweaving areas of surface layer patterns and inner layer patterns, and carrying out collaborative weaving; the collaborative weaving data table comprises intervention opportunities and interweaving frequency parameters of connecting yarns in each region; according to the invention, by switching the connecting structure in different periods, adapting to the characteristics of the jacquard area and combining the parameters of the connecting yarn and the limitation of the interweaving depth, the complete concealment of the connecting points, the accurate alignment of mirror image jacquard of the surface and inner layers, the control of the dislocation amount within 0.15 mm and the complete and non-split double-visual effect are realized, and the visual requirements of high-end fabrics are met.

The invention discloses a supporting mechanism for eliminating the appearance of a tank body of a special oil tank truck, which comprises an oil tank truck body and a camouflage net, a side protection pipe, a top protection pipe and a ladder stand pipe are welded on the oil tank truck body, the side protection pipe, the top protection pipe and the ladder stand pipe are respectively welded on two sides, the top and the rear part of the oil tank truck body, and the camouflage net is arranged on the side protection pipe. The camouflage net is hung outside the side protection pipe, the top protection pipe and the ladder stand pipe, a plurality of supporting pipes are installed between the top protection pipe and the oil tank truck body, and base plates are additionally installed between the side protection pipe, the top protection pipe, the ladder stand pipe and the supporting pipes and the oil tank truck body. The camouflage net supporting mechanism is reasonable in structural design, simple in structure, convenient to manufacture and good in economical efficiency, the camouflage net can be supported to be in the shape of a common van vehicle, so that the appearance of an oil tank is eliminated, camouflage is well conducted, vehicle hiding and anti-detection are achieved, and in daily maintenance, the camouflage net supporting mechanism can also serve as a top guardrail device of an oil tank truck. And operators are protected.

The invention discloses a camera combination structure and a manufacturing method of a shielding enhancing cover plate, the camera combination structure comprises a camera module and the shielding enhancing cover plate covering the camera module, the shielding enhancing cover plate comprises a substrate and an antireflection film layer, the antireflection film layer is attached to the surface of the substrate, and the shielding enhancing cover plate is arranged on the substrate. Wherein the antireflection film layer comprises a high-refractive-index material layer and a low-refractive-index material layer which are alternately stacked, and the thicknesses and material types of the high-refractive-index material layer and the low-refractive-index material layer are selected and adjusted, so that the antireflection film layer has an LAB value close to that of the camera module. Compared with a previous anti-reflection film glass scheme in which the color is determined only according to the characteristics of a material for the anti-reflection purpose, the shielding enhancement cover plate disclosed by the invention ensures the high transmittance requirement of the camera, ensures the imaging effect, greatly improves the concealment of the camera, and realizes the perfect combination of the concealment and the functionality.

This invention relates to a wearable robotic mobile data acquisition device for single-person use, comprising a symmetrically arranged left and right arm module, a head module, and a back module. Each of the left and right arm modules includes a first base. The first base is connected to a second base via a central encoder. The second base is connected to a first arm via a central encoder. The first arm is connected to a second arm via a central encoder. The second arm is connected to a third base via a central encoder. The device is highly portable and mobile. By integrating the power supply, controller, and sensors into the back module, the entire device can be worn by a single person like a backpack. The data acquisition personnel can move freely in various real-world scenarios, including indoors, outdoors, and complex terrain, to conduct dynamic data acquisition, overcoming the limitations of fixed acquisition systems.

The invention belongs to the technical field of mobile communication, and particularly relates to a secure transmission method with position hiding capability for a communication and sensing fusion scene. The method comprises the following steps of: firstly, calculating a null space of array response of an azimuth where an illegal party is located, taking an orthogonal basis of the null space as a position hiding precoding matrix, then multiplying a channel of a legal party by the matrix to obtain an equivalent channel, performing singular value decomposition on the equivalent channel to obtain a null space of the equivalent channel, and transmitting artificial noise in the null space of the equivalent channel to obtain a position hiding precoding matrix. Communication signals are transmitted in an orthogonal complement space of the null space of the equivalent channel. As the array response of the direction where the illegal party is located corresponds to the sight distance channel, the provided scheme can null the signal in the sight distance channel of the illegal party, so that the illegal party cannot correctly deduce the position of the sender. Compared with a traditional physical layer security algorithm, the scheme provided by the invention realizes hiding of the position of the sender while ensuring communication security, and has higher use value.

The utility model provides a micromodule end door assembly with a hidden human body inductive switch and a data center, and belongs to the technical field of data centers, the micromodule end door assembly comprises an end door main body and a human body inductive switch, a first accommodating space is arranged in the end door main body, the first accommodating space is provided with a first opening, and the human body inductive switch is fixed in the first accommodating space; the sensing end faces the first opening, and the first opening is a mesh-shaped opening. According to the utility model, the built-in of the human body induction switch is realized, the human body induction switch cannot be collided when the door is opened and closed, the visual hiding effect can be realized, and the aesthetic property of the appearance is ensured.

The invention discloses a blue and white porcelain feature acquisition device and a breaking method. The acquisition device comprises a storage box, a dimming glass cover, a light source, a rotary support mounting table, a camera, a telescopic rod and an adjustable clamping mechanism, the method comprises the following steps: 1, constructing a blue and white porcelain pattern image database; 2, constructing a blue and white porcelain pattern declaration model; 3, training the blue and white porcelain pattern generation model; 4, testing the blue and white porcelain pattern generation model; 5, acquiring an actual blue and white porcelain pattern image; 6, preprocessing the actual blue and white porcelain pattern image; and 7, breaking the blue and white porcelain patterns. The method adapts to acquisition of porcelain images of different sizes and types, analyzes blue and white porcelain ornamentation through multi-feature fusion and a gradient lifting model, introduces a ShuffleNetV2 network model of a space attention mechanism to capture a long-distance dependency relationship in the image, and fuses a color threshold segmentation technology to extract a complete ornamentation pattern on a glaze surface, so as to obtain a high-precision image of the blue and white porcelain ornamentation. And unrelated interference information is successfully filtered.

This invention relates to the fields of radio frequency detection and aircraft skin technology, and discloses a conformal skin radar structure based on a radio frequency microsystem. It includes several planar arrays based on the radio frequency microsystem, assembled according to the curvature requirements of aircraft skin to form irregularly shaped arrays. A conformal skin is attached to the surface of each irregularly shaped array, including an outer electromagnetic wave-transmitting protective skin. A filling portion is provided on the side of the protective skin that is in contact with the irregularly shaped array, and the filling portion is inserted into the splicing seam between adjacent planar arrays. This invention utilizes the integrated design of the irregularly shaped outer electromagnetic wave-transmitting protective skin and the irregularly shaped array based on the radio frequency microsystem. While ensuring electrical performance, it achieves conformal design with the aircraft skin, expanding the installation location of radar equipment on aircraft platforms. Furthermore, the structure is simple and compact, lightweight, easy to manufacture, and inexpensive. Moreover, the filling portion ensures the installation stability of the conformal skin and the irregularly shaped array while improving the electromagnetic performance of the combined irregularly shaped array.

A touch switch with a hiding effect comprises a shielding layer which is made of a semitransparent diffusion PET material and is used for shielding the touch switch to achieve a hiding effect. The inner side of the shielding layer is provided with a groove which is consistent with the shape of a required mark, and the light transmission of the mark is increased by utilizing the groove; the lower end of the shielding layer is provided with a light-transmitting layer, the lower end of the light-transmitting layer is printed with a touch circuit layer, the touch circuit layer is pasted on the LED lamp panel through an attaching adhesive material, and one side of the touch circuit layer is electrically connected with the LED lamp panel through a touch circuit tail band. Due to the application of the technical scheme, the touch switch with the hiding effect provided by the utility model adopts the shielding layer made of the diffusion PET material to shield the touch switch, and realizes the display and hiding of the mark by changing the thickness of the shielding layer and matching with the LED irradiation, and the touch switch with the hiding effect is simple and ingenious in design structure, obvious in effect and convenient to use and popularize.

The application provides a kind of anti-collision mechanism and unmanned vehicle, and the anti-collision mechanism includes vehicle body frame, outer trim and anti-collision component arranged between the two, the anti-collision component includes mutually matched anti-collision touch edge, touch edge contact part and trigger mechanism built-in anti-collision touch edge, anti-collision touch edge and touch edge contact part are respectively installed on vehicle body frame and outer trim, when outer trim is deformed by collision, at least one of the two will be driven to displace, so that trigger mechanism generates trigger signal.The application realizes complete concealment of anti-collision component, ensures reliable collision perception at the same time, completely liberates the modeling degree of freedom of vehicle outer trim, and takes into account safety and aesthetics.

The application discloses a design method of a high-mobility stealth satellite communication system and relates to the technical field of satellite communication. The application comprises the following steps: step a: system silence and state presetting: a control center makes a satellite of a space segment enter an electromagnetic silence state, a satellite platform starts surface thermal management and retracts a protruding structure, and an orbit maneuver with no fixed period is planned and executed. The application improves the concealment and survivability of the satellite platform in orbit. By making the satellite enter a silence and survival state and implementing thermal management and shape control, combined with the orbit maneuver with no fixed period, the physical and orbit characteristics of the satellite are difficult to be observed and predicted for a long time, traditional detection and tracking means based on a fixed shape and a periodic orbit are invalid, and exposure risk of space assets is controlled. Meanwhile, communication adopts a "zero handshake" burst access mechanism based on one-time instructions, and open signaling interaction in a link establishment process is completely eliminated.

This utility model discloses a medical heating blanket, relating to the field of medical device technology. The medical heating blanket includes an electric blanket, a main unit, and a connecting connector. The main unit has a shell with a cavity inside. The connecting connector is housed within the cavity, with one end penetrating the inner wall of the cavity for electrical connection to the internal circuitry of the main unit, and the other end penetrating the shell for electrical connection to the electric blanket. This design, by integrating the connecting connector into the cavity of the main unit's shell, achieves concealment of the connection, significantly improving the overall aesthetics of the medical heating blanket. It also avoids the problem of protruding plastic parts being easily affected by external interference and damage during use, enhancing the stability and reliability of the device. Furthermore, the concealed connection method optimizes the installation space of the main unit, making it more suitable for use in limited medical environments, improving the practicality and ease of operation of the device.

The utility model provides a multifunctional service umbrella, and relates to the technical field of police equipment. The multifunctional service umbrella comprises a front grip and a tear ejector, a cavity is formed in the front grip; the tear ejector comprises a spray head part and a tank body part; the spray head part is inserted into the cavity in a pluggable manner, so that the front grip and the tank body part are combined to form a grip of the umbrella; and a marking structure is arranged on the front grip, and when the spray head part is inserted into the cavity, the push switch directly faces the marking structure. According to the functional service umbrella, multiple functions of protection and control are integrated, when the functional service umbrella is used, the position of a pressing switch of the lacrimation ejector can be found through the marking structure, the lacrimation ejector can be pulled out rapidly, and lacrimation ejection control can be carried out rapidly; the multifunctional service umbrella not only expands the multifunctionality of the police service equipment, but also improves the working safety of the police service, meets the complex and changeable actual combat requirements, and highlights the concealment, pertinence and practicability of the application of the functional service umbrella.

The utility model discloses a vertical slim body shaping garment which comprises a jumpsuit, small fly sleeves are arranged on cuffs of the jumpsuit, a waist radian pressurizing piece is arranged on the waist of the jumpsuit, leg radian pressurizing pieces are arranged on the side faces of the legs of the jumpsuit, a radian hip lifting piece is arranged on the hip of the jumpsuit, and a neckline of the jumpsuit is a V-shaped neckline. The radian hip lifting piece upwards and downwards integrally extend to the back waist and the back leg respectively. The utility model relates to the technical field of clothes. The vertical slim body shaping garment solves the problems that the body shaping garment cannot fit the waist, the legs and the buttocks of a human body, so that the body cannot be perfectly shaped, and in addition, when the body shaping garment is worn, the shoulder girdles are exposed outside, so that the exposed shoulder meat at the cuffs cannot be shielded.

The utility model provides an image acquisition device with a triangular support, which relates to the technical field of image acquisition devices and comprises a support frame, a reinforcing plate is fixedly mounted at the bottom end of the support frame, a fixing rod is fixedly mounted at one end, far away from the reinforcing plate, of the support frame, and an adjusting rod is arranged at one end, far away from the support frame, of the fixing rod in a penetrating manner. A positioning hole is formed in the surface of the adjusting rod, a round sleeve is fixedly installed on the surface of the fixing rod, a spring is fixedly installed in the round sleeve, and a baffle is fixedly installed at the end, close to the positioning hole, of the spring. According to the utility model, through the arrangement of the fixing rod, the adjusting rod, the positioning hole, the positioning bead, the spring, the baffle plate, the rotating disc and the support frame, the image acquisition device can conveniently adjust the shooting height and orientation of the camera, and the shooting height and orientation of the camera can be adjusted by sliding the position of the adjusting rod on the fixing rod and utilizing the matching of the positioning bead and the positioning hole. The position of the adjusting rod can be accurately fixed, so that the camera is stably supported.

The present invention relates to the field of automotive electronic technology, specifically to a vehicle-mounted antenna with a positioning structure for easy storage, including a storage box and a vehicle-mounted antenna arranged in the storage box, the storage box including a bottom plate, two groups of vertical plates and two groups of cover plates, the two groups of vertical plates are provided with through grooves, the two groups of cover plates are slidably installed in the through grooves, a support plate is slidably installed between the two groups of vertical plates, the support plate can move up and down along the two groups of vertical plates under the push of a linkage assembly, two groups of mounting seats are symmetrically arranged on the support plate, each group of mounting seats is provided with a group of vehicle-mounted antennas, the vehicle-mounted antenna can be rotated at multiple angles on the mounting seats, and a positioning structure is also provided inside the mounting seats. The present invention can not only adjust the vehicle-mounted antenna at multiple angles, but also store the vehicle-mounted antenna well when the vehicle is not in use, thereby realizing the hiding of the vehicle-mounted antenna and ensuring the smooth normal operation of the vehicle-mounted antenna.

The invention relates to a social network key figure hiding method and device based on target k node decomposition, and the method comprises the following steps: S1, assuming an undirected and unweighted network G, distributing a core value C (v, G) to each node in the network through employing a k core decomposition algorithm, and defining the node with the highest core value in the social network as a key figure Vk; s2, for each node, obtaining hierarchical weight information M of the node, and constructing a backtracking tree GBT for a target k node to obtain a candidate edge set H; and S3, according to the candidate edge set H, selecting the edge e with the most influenced nodes for trimming and deleting. And S4, repeating the step S3 until all nodes in the target k node are removed from the k nuclear subgraph, namely, achieving the key figure hiding effect. According to the method, an onion decomposition algorithm and a backtracking tree algorithm are improved, and a backtracking tree is constructed to obtain a set of least connected edges in a graph needing to be deleted, so that a specified target node is separated from a k-kernel subgraph, and the hiding of key figure information in a social network is realized.

The utility model provides a mixing device for construction, which relates to the technical field of mixing for building construction and comprises a mixing drum, a U-shaped support frame is fixedly arranged in the middle of two sides of the mixing drum, and the middle of the U-shaped support frame is positioned above the mixing drum; a rotating frame matched with the bearing is rotationally arranged outside the U-shaped supporting frame; a connecting seat is fixedly arranged at the top of the U-shaped supporting frame; the top end of the stirring shaft is of a shoulder structure, and the top of the stirring shaft is matched with the two sets of waterproof bearings to be rotationally arranged in the connecting base; the stretching hanging row is arranged, the rapid and automatic cleaning function is provided, the stretching hanging row is manually controlled to stretch out, meanwhile, conveyed water penetrates through the one-way valve A to be sprayed into the inner wall of the stirring barrel to be washed, rotary cleaning can be achieved, concrete residues can be greatly reduced, driving is convenient, in addition, water conveying can be guaranteed in the stirring shaft rotating process through the water conveying holes, and the stirring efficiency is improved. The rotary cleaning effect is achieved, and the problem that an existing mixing device is inconvenient to clean automatically is solved.

The utility model relates to the technical field of car lamp design, in particular to a car lamp structure with an interactive function. Comprising an optical module and an outer lampshade, the optical module comprises a circuit board and a plurality of LED light sources, the LED light sources are located between the circuit board and the outer lampshade and evenly distributed on the circuit board, the optical module is connected with a double-color inner lampshade through a plurality of light blocking supports, and the double-color inner lampshade comprises an inner lampshade light-transmitting part and an inner lampshade light-proof part which are regularly arranged. One end of the light blocking support is connected to the circuit board and located between the adjacent LED light sources, and the other end of the light blocking support is connected with the light-proof part of the corresponding inner lampshade. The side, away from the LED light source, of the double-color inner lampshade is connected with the outer lampshade. Light emitted by the LED light source can sequentially pass through the gap between the light blocking supports, the light transmitting part of the inner lampshade and the outer lampshade. The double-color inner lampshade and the light blocking support are used for blocking light, so that the phenomena of light channeling of adjacent point pixels, unclear pattern boundaries and the like are avoided, and the optical uniformity is improved.

The invention belongs to the technical field of connecting pieces of plush accessories and fabric costumes, and particularly relates to a hidden type connecting structure of plush accessories and fabric costumes, which comprises a base and a placing groove formed in the inner wall of the base, a clamping seat is connected in the placing groove, and a rubber clamping block is connected to the inner wall of an opening of the clamping seat. According to the invention, the clamping seat is slidably assembled into the placement groove in the base, then the base and the assembly block are integrally sewn into the plush toy, then the shell plate is in butt joint with the base on the surface of the plush toy, in addition, the ejector pin penetrates out of the interior of the fabric costume, and the fabric costume is inserted into the clamping seat. The ejector pin is inserted into the insertion hole in the surface of the clamping seat, and the ejector pin is stably positioned under the expansion acting force of the rubber clamping block, so that the hidden effect of connection between the plush toy and fabric clothes is achieved, the overall appearance attractiveness of the plush toy is guaranteed, meanwhile, the risk of scratching due to leakage is avoided, and the experience of a wearer is improved.

The present invention relates to a noodle bundle for tracing the production and manufacturing information of hollow tribute noodles. The present invention uses an electronic tag hidden in a packaging paper to record the production and manufacturing information of the noodle bundle, and conceals the electronic tag by making it fake on the outside and real on the inside, thereby solving the problem in the prior art that hollow tribute noodles cannot be traced and prevented from being counterfeited after distribution.

The present invention belongs to the technical field of information security, and more specifically, it relates to a method, device and computer-readable storage medium for enhancing the defense of a federated learning model based on a historical global model. The method includes the server sending a global model to the client, the attacker client intercepting each round of the global model and putting it into a historical global model storage pool; the server randomly selects some clients to use the local data set of the client for training to obtain a client local model, and the attacker client selects a historical global model in the historical global model storage pool as the attack target model; the client uploads the trained local local model to the server, the server aggregates it, and then sends it to each client; a dynamic weighted aggregation mechanism is introduced to obtain the parameters of the optimal global model. The present invention solves the problem that the effectiveness and attack success rate of the current defense method in a non-independent and identically distributed environment are low, and the effectiveness of the existing defense mechanism is low.