16results about How to "Precise protection" patented technology

The invention discloses an anti-falling robot and an anti-falling method and equipment, relates to the field of intelligent robots, and is used for realizing cliff identification and falling protection in a full scene. Identifying a falling risk based on a detection result of the sensor module by at least detecting whether a cliff exists in a first preset range and a second preset range around the robot body; and controlling the motion state of the robot body based on the falling risk. According to the method, the cliff is synchronously detected through the near end and the far end, cliff identification and falling protection in a high-speed moving state and in a full scene where the cliff is initially located at the edge of the cliff or runs close to the edge are achieved at the same time, reliability and safety are high, system operation is smooth, and universality is high.

The application belongs to the technical field of cable manufacturing, and specifically discloses a composite cable and a preparation method thereof, which comprises an inner sheath, the inner sheath is internally provided with connecting sleeves, the connecting sleeves are internally provided with connecting cores, the inner sheath is internally provided with first filling layers at the outer walls of the connecting sleeves, the outer wall of the inner sheath is circumferentially provided with control cores, the outer wall of the inner sheath is provided with an insulating layer, the control cores are located in the insulating layer, the gap between the control cores and the insulating layer is filled with a second filling layer, the second filling layer is connected with the outer wall of the inner sheath, the middle part of the outer wall of the insulating layer is provided with a reinforcing shielding layer, and the outer wall of the insulating layer is provided with a buffer sleeve. The application improves the mechanical reliability, anti-interference ability and service life of the cable in a poor environment.

The invention relates to the field of submarine cables, and discloses an armor layer shape correction mechanism and an operation device, the armor layer shape correction mechanism comprises a repair ring, the repair ring comprises an upper shell and a lower shell, and the upper shell and the lower shell form a ring shape; the multiple monitoring pieces are installed on the inner wall of the upper shell and the inner wall of the lower shell respectively; the vertical projection of the monitoring piece on the inner wall of the upper shell does not coincide with the vertical projection of the monitoring piece right opposite to the inner wall of the lower shell; through the synergistic effect of the monitoring strain gauges, the elastic pieces, the buckles and the grooves and in combination with the special layout of the monitoring pieces, real-time, accurate and reliable pressure monitoring and overload protection of the armor layer shaping process are achieved, and finally high quality, high reliability and high efficiency of shaping work are ensured.

This invention discloses a multi-branch battery pack high-voltage system and its control method. The multi-branch battery pack high-voltage system includes: multiple battery pack branches, a charging control module, and a discharging control module. Each battery pack branch includes a battery pack, a battery drain interrupter (BDU), and a bidirectional DC-DC converter module. The battery pack is connected to the input terminal of the BDU. The BDU has a main circuit and an equalization circuit. The main circuit controls the on / off of the main power of the battery pack branch it belongs to. The BDUs of each battery pack branch are connected to each other through the equalization circuit for active equalization between branches. The output terminal of the BDU is connected to the input terminal of the bidirectional DC-DC converter module, which controls the charging and discharging current of its respective battery pack branch. The output terminals of all bidirectional DC-DC converter modules are connected in parallel and then connected to the charging control module and the discharging control module. This invention can solve the circulating current problem between battery packs and improve the stability of the multi-branch battery pack high-voltage system.

This invention discloses a method for detecting encrypted communication of malicious software based on autonomous learning, characterized by the following steps: Step S1: Preprocessing network traffic data, including traffic reassembly, protocol filtering, and structured log generation, to extract SSL / TLS encrypted sessions; Step S2: Extracting session statistical features, including TCP connection layer features, SSL / TLS protocol layer features, and certificate layer features, forming a multi-dimensional feature vector; Step S3: Constructing a host session heterogeneous graph, which includes two types of heterogeneous nodes: host nodes and session nodes, and two types of edge types: session-related edges and master-slave-related edges; Step S4: Using the hierarchical aggregation algorithm HSGraphSAGE to embed nodes into the heterogeneous graph, and obtaining host node representations containing spatiotemporal features through multi-hop neighbor aggregation; Step S5: Inputting the host node representations into a classifier, and outputting the detection results of malicious communication behavior of the host. This invention achieves accurate detection of encrypted malicious traffic through a five-step collaborative mechanism. The entire process effectively improves the detection rate of APT attacks and significantly reduces the false positive rate while ensuring privacy compliance (without decrypting the original data).

The invention provides a braking energy recovery method and system for an electric automobile and the electric automobile, and the method comprises the steps that in the braking energy recovery process, the voltage value of each single battery cell is monitored in real time, and the highest single battery cell voltage value is determined; comparing the highest monomer voltage value with a preset multi-stage voltage threshold value; when the highest monomer voltage value reaches or exceeds any voltage threshold value, determining a target feedback current limiting value corresponding to the voltage threshold value, and limiting the braking feedback current to the target feedback current limiting value within a first preset time; and when the highest monomer voltage value falls below the preset safety voltage value and lasts for a second preset time, the limitation on the brake feedback current is relieved, so that the brake energy recovery recovers to a normal working state. According to the mode, smooth adjustment of the feedback power can be achieved while the overcharge risk of the single battery cell is precisely controlled, and therefore efficient and smooth braking energy recovery is achieved on the premise that the safety of the battery under the extreme working condition is guaranteed.

The application discloses a tire pattern structure with anti-puncture and active stone discharge for gravel pavement, and relates to the technical field of tires.The technical scheme is as follows: a pattern block is arranged on a tread, pattern grooves are arranged between the pattern blocks, the groove bottoms of the pattern grooves are provided with elastic protection teeth in a zip fastener shape and engaged with each other in the circumferential direction of the tire, the elastic protection teeth are provided with an engagement gap therebetween for discharging stones, and the groove bottoms of the pattern grooves are provided with a gradient hardness buffer layer below the elastic protection teeth, wherein the Shore hardness of the gradient hardness buffer layer gradually changes from 75HA to 65HA from a surface layer in contact with the elastic protection teeth to an inner layer away from the elastic protection teeth.The application realizes the organic combination of stone discharge and anti-puncture through the synergistic effect of multiple structures, greatly reduces the early damage probability of the tire when driving on the gravel pavement, effectively prolongs the actual service life of the tire, improves the safety of the tire when driving on the gravel pavement, and has significant technical advantages and practical value compared with the prior art.

The application discloses a quantitative prediction method for atmospheric pollutant corrosion rate of metal under multi-gas coupling effect, relates to the technical field of atmospheric corrosion science and industrial protection, and comprises the following steps: step one, constructing a multi-gas corrosion rate calculation basic framework; taking the rate threshold value data of metal in a graded corrosion environment, the framework provides a unified operation platform for subsequent integration of other gases and adaptation of different metals. The quantitative prediction method for atmospheric pollutant corrosion rate of metal under multi-gas coupling effect realizes full-coverage quantitative analysis of the corrosion effects of three core atmospheric pollutants, namely Cl ‑ , H2S and NH3, effectively solves the technical difficulty that Cl ‑ cannot be independently calculated in the prior art, and realizes precise coupling and linkage calculation of Cl ‑ , H2S and NH3 by converting Cl into a dedicated corrosion contribution item.

The invention relates to the technical field of additive manufacturing, in particular to an optical platform and equipment for additive manufacturing and an additive manufacturing method of the optical platform and the equipment. The light path output mechanism is used for outputting a high-energy beam; the at least one transparent blocking piece is arranged below the light path output mechanism and allows the high-energy beams to penetrate through, the transparent blocking pieces are arranged at the output end of the driving system, and in the additive manufacturing process, when pollutants such as material splashing and smoke dust are generated, the transparent blocking pieces can flexibly move under the action of the driving system, the pollutants are dynamically blocked, and the light path output mechanism is used for transmitting the high-energy beams. The probability that pollutants are directly deposited and attached to the surface of the light path output mechanism is effectively reduced, so that the situation that the normal laser propagation path is interfered after the surface of the light path output mechanism is polluted is avoided, the risk that the light path output mechanism is damaged due to pollution is reduced, and the stability and reliability of the whole additive manufacturing process are improved.

This invention discloses an automatic identification method and system for mural protection and restoration based on image analysis. The method includes: generating the degradation state of the mural at different time points using an image simulation algorithm; converting two-dimensional damage images into a three-dimensional spatial model using 3D mapping technology to accurately pinpoint high-risk damage points; further integrating scattered damage points using a clustering analysis algorithm to extract the properties and spatial characteristics of damage groups; and automatically identifying damage boundaries by analyzing texture continuity and line direction using a curve feature detection algorithm. Dynamic sequence analysis tracks inter-frame differential changes to reveal the degradation propagation trajectory; encoding technology efficiently compresses and stores damage information; and historical comparison analysis uncovers matching degradation patterns and updates potential damage areas. This invention, with 3D spatial modeling as its core, integrates multi-dimensional analysis and efficient storage to achieve precise location, dynamic monitoring, and preventative protection of mural damage, significantly improving the scientific rigor and efficiency of cultural relic protection.

The application discloses a reactive compensation cabinet capacitor overheat protection device and method based on harmonic current, belongs to the technical field of reactive compensation of electric power systems, and realizes real-time collection of power grid current through the reactive compensation cabinet, separates harmonic current components, calculates the effective value of the harmonic current, calculates the current harmonic equivalent time value of the input capacitor based on the effective value of the harmonic current, the preset harmonic current threshold value and the time interval of the sampled harmonic current, so that when the effective value of the harmonic current is greater than the harmonic current threshold value, the current harmonic equivalent time value is positive, otherwise, the current harmonic equivalent time value is negative, when the effective value of the harmonic current is equal to the harmonic current threshold value, the current harmonic equivalent time value is zero, the current harmonic equivalent time value of the input capacitor is accumulated, and when the obtained cumulative harmonic current equivalent time value is greater than the maximum allowed harmonic working time threshold value, a capacitor removal control instruction is generated to remove the capacitor.

This invention relates to the field of cultural relic preservation technology and provides a composite gas control method for preventing mold and insect infestation in ancient books. The method includes: deploying a sensor array within the storage space to collect environmental parameters in real time and transmitting them to a central intelligent control terminal; classifying the ancient books into three protection levels based on the collected environmental parameters, combined with the books' rarity, paper material, and damage condition, and presetting composite gas concentration thresholds; using a chemical-free composite gas system of nitrogen, carbon dioxide, and inert antibacterial gas, proportioned according to the protection level, and delivering it to the storage space; executing dynamic control logic based on the real-time collected environmental parameters, and switching to a low-energy maintenance mode after the environmental parameters return to a safe range; providing localized gas replenishment to the enclosed space through micro-gas channels and setting up a personnel safety interlock mechanism; and recording data in real time and generating ancient book protection archives. This invention achieves chemical-free, non-destructive, and highly efficient synergistic mold and insect prevention, significantly reducing operating energy consumption.

This utility model provides an electric blanket coupler based on a Z-shaped connection, relating to the field of electric heating product technology. It includes: a coupler housing, a heating wire, a PCB adapter board, a heating wire fixing slot, and connecting pins. The heating wire, PCB adapter board, heating wire fixing slot, and connecting pins are disposed within the coupler housing, which is used to fix the heating wire, PCB adapter board, heating wire fixing slot, and connecting pins. The heating wire is disposed within the heating wire fixing slot, which is used to fix the heating wire. The connecting pins, heating wire, and PCB adapter board are connected sequentially. The heating wire includes an inner wire and an outer wire. The inner and outer wires are connected in a Z-shape to trigger overcurrent protection, improving the accuracy and safety of current control. This utility model, through the application of the Z-shaped connection, makes current changes more sensitive and controllable, thereby improving the accuracy and safety of current control.

The utility model discloses a kind of gear box elastic support components of multilayer steel plate superposition, it is related to gear box elastic support component field, and its technical scheme main point is: including rubber elastomer, and multiple annular steel plates A embeddedly fixed on the outer side wall of rubber elastomer, the outer diameter of each annular steel plate A is compatible with the outer profile of rubber elastomer, the middle part of the rubber elastomer additionally adds a layer annular steel plate B, annular steel plate B is thickened relative to annular steel plate A, effect is through " key area rigidity reinforcement+stress transmission path optimization" precise protection is realized, with the minimum structural change, the efficient control of rubber elastomer extrusion deformation is realized, simultaneously, after adding annular steel plate B, the gap between annular steel plate A will also lead to small, smaller gap can enhance the circumferential restraint of annular steel plate A to rubber elastomer, directly suppress the extrusion tendency of rubber elastomer to annular steel plate A gap under the action of load.

The application relates to a power grid overcurrent protection system, which comprises a power supply V1, L MAIN, LESS, LHBB bus bars, a current sensor S1, contactors LTRUC, LDTC, LMBR, LBTC, LETC, a battery LBAT and a controller BPCU. The application also relates to a power grid overcurrent protection method, which comprises the following steps: the controller BPCU acquires the current of the power supply V1; the contactor LBTC is disconnected and locked; if the current returns to normal, the locking of the contactor LBTC is kept, otherwise the contactor LETC is disconnected and locked, if the current returns to normal, the locking of the contactor LETC is kept, the locking of the contactor LBTC is released, otherwise the contactors LDTC and LMBR are disconnected and locked; if the current returns to normal, the locking of the contactors LDTC, LMBR and LETC is kept, the locking of the contactor LBTC is released, otherwise the contactor LTRUC is disconnected and locked, and the contactors LMBR and LETC are released. The application can realize accurate control and protection of multiple bus bars in the power grid, ensure that the fault point can be quickly and accurately isolated when an overcurrent fault occurs, and guarantee normal operation of the power grid.

The application discloses a kind of anti-deviation type PCB pad assemblies, belong to PCB assembly technical field.PCB substrate is included;The PCB substrate is provided with solder resist layer, silk screen layer and additive layer;The additive layer is superimposed on solder resist layer;Openings are opened in the solder resist layer, and the openings form pads;The pad is coated with a layer of tin paste;The tin paste layer is placed with a patch component pin;The device is provided with 3D micro-bump, when SMT patch operation is carried out, the micro-bump is blocked from the outside of the pad to the tin paste layer, and the micro-bump can stably constrain the tin paste flow when the patch and reflow welding, then complete the mounting and welding of the patch component, that is, anti-deviation welding can be realized by 3D micro-bump limiting, and stable blocking and limiting can prevent tin paste overflow and component deviation, avoid continuous tin virtual welding and patching, and be beneficial to the improvement of SMT patch production yield.