291results about How to "Avoid security risks" patented technology

The invention belongs to the crossing field of network space security, software engineering and artificial intelligence, and discloses a dynamic and static cooperative vulnerability full-link intelligent analysis and verification method based on a large language model and an MCP protocol, and the method comprises the steps: S1, task initialization and context construction; s2, target code deep analysis and static taint preanalysis are carried out; s3, carrying out Fuzzing Harness directional generation and iterative optimization on the basis of the stain paths; s4, performing dynamic and static collaborative sandbox execution and dynamic stain tracking; and S5, vulnerability accessibility judgment and report output of multi-source data fusion are carried out. According to the method, a dynamic and static combination mechanism is adopted, vulnerability analysis and verification can be automatically completed for software target codes, and accurate technical support is provided for vulnerability risk grading and repairing priority ranking.

The invention discloses a test method for a high-load heating tube for a mold, and belongs to the technical field of single-head electric heating tube detection. The method specifically comprises the following steps: S1, historical data acquisition: acquiring cold-state electrical performance data of single-head electric heating tubes with different specifications and under different working conditions; s2, historical data preprocessing: performing preprocessing including data cleaning, data normalization and data standardization on historical data to obtain a standardized data set; the test process design covers a full-period closed loop of cold state detection, hot state leakage current test, reliability test, secondary hot state leakage current test and secondary cold state detection, the electrical safety (leakage current control) under a high-load working condition is verified through the hot state test, and the reliability of an actual use scene is simulated through a rapid on-off test. Meanwhile, the appearance, temperature, gas release and other states of the heating pipe are monitored in real time, abnormal testing is terminated in time, safety risks are avoided, and it is ensured that the detection result can comprehensively reflect the actual use performance of the heating pipe.

The application discloses a preparation method of a sodium ion battery hard carbon negative electrode material based on step-by-step synergistic regulation, and comprises the following steps: S1, biomass pretreatment; S2, low-temperature pre-carbonization to obtain biomass pre-carbonized carbon; S3, physical activation: the pre-carbonized carbon is placed in an activation atmosphere to perform medium-temperature activation, and biomass activated carbon is obtained; S4, high-temperature carbonization: the biomass activated carbon is placed in an inert atmosphere to perform high-temperature carbonization, and a hard carbon intermediate is obtained; S5, chemical vapor deposition coating: the hard carbon intermediate is placed in a mixed atmosphere of a coating carbon source and an inert gas to perform chemical vapor deposition coating, and a surface-coated biomass hard carbon negative electrode material is obtained. The application can realize a higher closed pore volume at a milder temperature, and the synergistic regulation pore forming mode of activating and forming pores first and then high-temperature closing pores also avoids the insufficient closed pores caused by single high-temperature treatment.

This invention discloses a battery swapping system and its control method for underground mining equipment, aiming to solve the problems of excessive downtime and low operational efficiency when replacing batteries in underground mining equipment. It includes a battery swapping trolley for carrying and transporting battery packs; a slide rail installed on the trolley, which can extend and retract horizontally relative to the trolley to transfer the battery pack between the trolley and the equipment; and a lifting and fixing mechanism respectively disposed on the trolley and the equipment, which is used to vertically lift, lock, or release the battery pack, cooperating with the extension and retraction of the slide rail to complete the transfer and fixing of the battery pack. This invention is applicable when construction equipment needs battery pack replacement, with the battery swapping trolley transporting the battery pack to the construction site, and rapid battery swapping performed using the trolley and the equipment's own devices.

The invention relates to the technical field of detection, in particular to an inner wall state detection device for a liquid hydrogen transportation tank, which comprises a miniature liquid hydrogen transportation outer tank, a miniature liquid hydrogen transportation inner tank is welded and fixed at the upper end of the inner wall of the miniature liquid hydrogen transportation outer tank, and the upper end of the miniature liquid hydrogen transportation inner tank penetrates through the top of the miniature liquid hydrogen transportation outer tank and is in threaded connection with a screw cover; according to the device, by means of the characteristic that liquid argon can be gasified when making contact with normal-temperature air, when the micro liquid hydrogen transportation outer tank is broken, the trigger mechanism is started, and the micro liquid hydrogen transportation inner tank is in a vacuum state; the liquid argon is gasified and mixed with the fluorescent dry powder, the colored gas generated by gasification is sprayed out from the damaged position to form a striking visual mark, a worker can visually find the damaged position at the first time without the aid of a complex detection instrument or large-area troubleshooting, and the fault diagnosis time is greatly shortened.

The invention relates to the technical field of adsorbent materials, and discloses a CoMn2O4 spinel adsorbent and a method for removing trivalent antimony in a water body by using the CoMn2O4 spinel adsorbent. The adsorbent is prepared by adopting a co-precipitation and low-temperature thermally induced crystallization synergetic green process: dissolving cobalt salt and manganese salt according to a stoichiometric ratio, dropwise adding a sodium hydroxide solution for co-precipitation, washing an obtained precursor, and drying at 80-120 DEG C under normal pressure for 12-48 hours to directly obtain the adsorbent. According to the method, the spinel material with low crystallinity, high specific surface area and rich surface hydroxyl is controllably synthesized by regulating and controlling the concentration of the precipitator and the drying condition, and the problems of active site loss and high energy consumption caused by traditional high-temperature calcination are avoided. When the composite material is used for treating wastewater containing trivalent antimony, antimony ions can be efficiently removed through the adsorption effect under the appropriate pH condition, excellent adsorption capacity is shown, the technology is simple, cost is low, safety is good, and an efficient and stable adsorption material and a feasible method are provided for water body antimony pollution treatment.

The present disclosure provides a message processing method and device, equipment and storage medium, comprising: in response to receiving a to-be-processed message, extracting quintuple information from the to-be-processed message; matching the quintuple information with the index key of the session table to determine the type of the to-be-processed message, wherein the index key of the session table is constructed based on the quintuple information of the established session; in response to the type of the to-be-processed message being a first packet, matching the quintuple information with the index key of the association mapping table to determine whether the to-be-processed message is an associated session of the main session, wherein the index key of the association mapping table is constructed based on the IP address and port information obtained by parsing the application layer of the control channel message of the multi-channel protocol, and the main session is the session of the control channel; in response to the to-be-processed message being an associated session of the main session, performing forwarding processing on the to-be-processed message.

The utility model discloses a sewing machine which comprises a base, a machine head and a protective cover. A needle plate and a thread hooking mechanism (not shown) are arranged on the base. The machine head is connected to the base, a machine needle mechanism and a presser foot mechanism are arranged on the machine head, and the machine needle mechanism is provided with a machine needle rod and a machine needle located at the end of the machine needle rod. And the protective cover is movably arranged on the machine head, is positioned on the peripheral side of the machine needle rod, and has an extending state of extending towards the base and shielding the machine needle and a retracting state of retracting towards the inner side of the machine head and being far away from the machine needle. When the sewing machine is in the stretching-out state, the protection cover can stretch out in the direction of the base to shield the machine needle, fingers of a child can be effectively prevented from making contact with the machine needle, and the safety risk in the using process is reduced. When needle replacement or threading operation needs to be carried out, the protective cover can retract towards the inner side of the machine head, enough space is reserved for needle replacement or threading operation, operation is easy, tedious operation and safety risks in the dismounting process are avoided, and the use safety of the sewing machine is greatly improved.

The application discloses a KDH binding verification method and device, and relates to the technical field of information security. The technical defects that the traditional certificate verification scheme does not explicitly distinguish between the CA certificate binding and the entity identity issuing constraint are solved. The method comprises the following steps: a terminal acquires an intermediate CA certificate of a KDH, binds the intermediate CA certificate as a legal KDH issuing CA after verifying the legality of the intermediate CA certificate by using a preset root certificate, and forms an issuer constraint with an unchangeable life cycle; in subsequent communication, the terminal only accepts entity certificates issued by the binding CA, and realizes KDH identity authentication by verifying the issuer field matching and the digital signature validity of the entity certificate. The application solidifies the binding relationship of the terminal-intermediate CA certificate, shrinks the trust boundary from the general CA certificate chain to a specific issuer constraint, effectively prevents illegal KDH entity impersonation attacks, and is especially suitable for payment terminals and other scenarios with extremely high requirements for identity authentication security.

This invention relates to the field of petrochemical catalytic desulfurization technology, specifically disclosing a high-efficiency desulfurizing agent, its preparation method, and its application in the desulfurization of heavy naphtha. The desulfurizing agent provided by this invention has a "two-level" metal active center. The first level is a cobalt center in biochar, and the second level is a nickel-copper bimetallic center introduced through impregnation on the surface of a composite carrier. The desulfurizing agent provided by this invention has excellent desulfurization effect. Under conditions of 140°C and no hydrogen, it can simultaneously remove inorganic sulfur such as hydrogen sulfide and organic sulfur such as thiols, thioethers, and thiophenes from heavy naphtha obtained by hydrocracking of heavy diesel oil, wax oil, or mixed diesel and wax oil, reducing the total sulfur content from 25-40 μg·g. ‑1 Reduced to 0.2 μg·g ‑1 The following methods can effectively protect bimetallic (multimetallic) reforming catalysts from sulfur poisoning, and the preparation process is green and controllable, making it suitable for large-scale industrial applications.

The training device with the self-locking function comprises a training device body, a resistance mechanism and a pull rope assembly, the resistance mechanism comprises a motor, a hoisting mechanism and a self-locking driving mechanism, the hoisting mechanism comprises a winding drum for winding and flange baffles located at the outer end of the winding drum, and at least one flange baffle is provided with a first locking matching unit; the self-locking driving mechanism comprises a driving unit and a second locking matching unit, and the driving unit is used for driving the second locking matching unit to be connected with or separated from the first locking matching unit, so that the rotation of the hoisting mechanism is locked and unlocked; therefore, when the fitness personnel need to leave temporarily or the fitness equipment needs to be shut down sometimes, the resistance mechanism can be actively locked to prevent the fitness equipment from being touched by children to cause safety risks.

The utility model relates to the field of tunnel construction emergency, and discloses a tunnel construction emergency early warning system. According to the invention, through integration of an informatization technology and a mechanical device, the emergency response capability of a construction scene is significantly improved. According to the system, a multi-module linkage mechanism is adopted, the abnormal state in the hole can be sensed in real time, early warning can be triggered synchronously, and the problems of delay and information transmission errors existing in traditional manual early warning are effectively solved. When a sudden dangerous case occurs, the wireless communication and intelligent control module can quickly cover a hole opening, the interior of the hole and an adjacent tunnel with a signal, and it is ensured that an operator receives an evacuation instruction at the first time through multi-dimensional warning means such as sound and light, voice and traffic signals. Meanwhile, due to intervention of the fixing support and automatic equipment, the posture of the construction trolley can be stabilized, the safety risk of manual operation is avoided, and the probability of secondary disasters caused by instability of the equipment is reduced fundamentally.

This invention provides a method and system for personalizing ETC (Electronic Toll Collection) on-board units (OBUs) based on location determination, and an issuing terminal, comprising: reading the location information of the issuing terminal; matching the read location information with a preset issuing area recorded in the issuing party's backend; if the location matching is successful, establishing a Bluetooth link between the issuing terminal and the OBU; the issuing terminal obtaining OBU information and a first random number from the OBU through the Bluetooth link; the issuing terminal sending an OBU write vehicle information request frame to the issuing party's backend, receiving an OBU write vehicle information response frame returned by the issuing party's backend, and writing the OBU's vehicle information file based on the OBU write vehicle information response frame; and the issuing terminal sending an OBU write system information request frame to the issuing party's backend, receiving an OBU write system information response frame returned by the issuing party's backend, and writing the OBU's system information file based on the OBU write system information response frame.

The application belongs to the technical field of AI security, and particularly relates to a safe integrated alarm linkage system, which comprises an intelligent security system, an intelligent fire alarm linkage system, an intelligent power utilization system, an AI dynamic analysis module, a communication network system, a big data analysis processing module, an intelligent feedback learning module and a user terminal system; real-time data of the intelligent security system, the intelligent fire alarm linkage system and the intelligent power utilization system are collected in real time, the collected data are accurately analyzed by the big data analysis processing module and the AI dynamic analysis module respectively, the operation state and the early warning level of the system are obtained, and the AI dynamic analysis module is used for deviation correction analysis, so that the accuracy and safety of system linkage are improved.

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

The utility model discloses a kind of air conditioners, air conditioner includes: casing assembly and heat exchange air supply component, casing assembly is formed with air inlet and air outlet, casing assembly includes front panel assembly, top cover and sealing element, top cover is set on the top of front panel assembly, sealing element is used to seal the assembly gap between top cover and front panel assembly, heat exchange air supply component is arranged in casing assembly.According to the air conditioner of the utility model, the assembly gap between top cover and front panel assembly is sealed by sealing element, the sealing effect of casing assembly can be improved, the liquid outside and the like can be effectively blocked by sealing element to enter casing assembly through assembly gap, so that the safety risk caused by liquid and the contact of electrified component inside casing assembly can be avoided, and the safety performance of air conditioner is improved.

This invention discloses a data access control method and related apparatus in a multi-agent collaborative environment, relating to the field of intelligent agents. Responding to a data query request initiated by a first intelligent agent, the method obtains the identity attributes and current task context of the first intelligent agent to determine the visible data range from a hierarchical data repository. Within the visible data range, it retrieves a target data unit matching the data query request and obtains the degree of difference between the first intelligent agent's permission level and the security level label of the target data unit. Based on this difference, it performs differentiated semantic processing on the target data unit and returns the processed target data unit to the first intelligent agent. This invention overcomes the rigidity of static isolation through dynamic permission adjustment and semantic desensitization. By performing field-level or digest-level desensitization based on the difference between permissions and security levels, it enables low-permission nodes to obtain the information required for the task, avoids the waste of non-sensitive knowledge in high-security data, and balances security and knowledge utilization.

The invention discloses a control method for switching sitting and standing postures of a wheel-foot robot. The control method comprises the following steps of S1, initial modeling, S2, strategy network and value network setting, S3, strategy network optimization and S4, deployment implementation. The invention provides the control method for switching the sitting posture and the standing posture of the wheel-foot robot, and the control method gives consideration to stability, smoothness and generalization ability.

The invention relates to the technical field of safe flight of aircrafts, in particular to a low-altitude aircraft safety interval assessment method and device, equipment and a storage medium. The evaluation method for the safety interval of the low-altitude aircraft comprises the steps that a rail car is controlled to run according to a preset track, the rail car carries a navigation system and a communication system of the low-altitude aircraft, and the navigation system and the communication system are in the state where electromagnetic interference signals are applied; in the running process, state information of the rail car is obtained; based on the state information and the preset track, evaluating the track keeping capability of the low-altitude aircraft; and determining the safety interval of the low-altitude aircraft based on the flight path keeping capability. According to the invention, the operation efficiency of the low-altitude aircraft can be improved on the premise of guaranteeing the flight safety.

The present application belongs to the technical field of glass processing automation equipment, and particularly relates to a glass packing line material bin and a use method thereof. The glass packing line material bin comprises a mechanical hand, and a material bin. A lifting driving mechanism is arranged in the material bin. The lifting driving mechanism is connected with a storage mechanism. A detection control unit for cooperation with the mechanical hand for grabbing is arranged in the material bin. Through the gear and rack transmission structure of the lifting driving mechanism, cooperation with the guide rail sliding block guide, automatic lifting compensation of the material can be realized, so that the material always maintains a constant grabbing height of the mechanical hand, and the mechanical hand parameter does not need to be frequently adjusted. The present application solves the problems of low automation degree, poor grabbing precision, weak universality and insufficient safety of the traditional material bin, and effectively improves the glass packing operation efficiency and packing quality.

The application discloses a multi-dimensional perception and self-adaptive tool changing method and system for a shield machine under low-speed pressure keeping, the tool changing system comprises a perception layer, a decision layer and a control layer; the tool changing method comprises the following steps: obtaining three-dimensional comprehensive data through a sensor; the three-dimensional comprehensive data is sent into a multi-modal space-time graph neural network MST-GNN through a sensor data fusion module, and a tool changing priority, a tool changing type label, a tool changing number and a tool changing number are output; the target tool is instantaneously positioned through the tool changing type label; angle error calculation is performed, a zero relative window is confirmed, and tool changing is realized. The application proposes the following method to cope with the long process that the traditional method must be completely stopped and depressurized, that is, under the micro-stop working condition of the low-speed cutter head and the pressure keeping of the soil bin, three-dimensional perception of defects-life-geology is fused, millisecond-level decision is made, RFID instantaneous positioning is performed, five times spline closed-loop tool changing is performed, and the tool changing time is reduced from hours to minutes.

The embodiment of the invention provides a request processing method, a task processing method, a device and equipment. The scheme comprises the steps of receiving a service calling request of an intelligent agent; determining a target operating system user identifier associated with a target model context protocol (MCP) service corresponding to the service calling request according to a pre-configured mapping relationship; providing an MCP service process operated by the user identifier of the target operating system; and executing a processing operation corresponding to the service calling request by the MCP service process according to a resource access permission limited by the target operating system user identifier.

A method for planning an autonomous landing safe trajectory suitable for UAV inspection is proposed. After the UAV takes off, it acquires the current pose of the UAV, the point cloud map information of the surrounding environment, and the spatial orientation of the target point. By establishing the spatial transformation relationship between the camera coordinate system and the body coordinate system, the orientation vector relative to the ground target is calculated, and the target point is generated within the radar-sensible area. Based on the generated target point, an optimization function that minimizes the fourth derivative is constructed based on multiple high-order polynomials to generate a smooth trajectory with continuous position, velocity, and acceleration. The initial trajectory is transformed into a B-spline curve, and local trajectory segments with collision risk are optimized. A segmented penalty mechanism is designed based on the boundary threshold to guide the trajectory away from the boundary area. The time span is adjusted by calculating the trajectory derivative over-limit ratio, and a trajectory similarity cost function is introduced to ensure that the final optimized trajectory maintains the original geometric structure, thereby achieving trajectory control optimization and safe landing of the UAV.

This invention relates to the field of transformer substation fault location technology, specifically disclosing a method and system for locating cable grounding faults on the low-voltage side of a new energy transformer substation. The method includes: plotting three-phase voltage variation curves based on historical three-phase voltage data from the low-voltage side of the transformer substation; clustering detection cycles based on the three-phase voltage variation curves, and determining a voltage tolerance threshold for the detection cycle based on the clustering results; determining voltage fault indicators on the low-voltage side of the transformer substation based on the voltage tolerance threshold, and correcting the initial values ​​based on the voltage fault indicators; extracting abnormal data points from the detection cycle based on the corrected values ​​using the LOF algorithm, and locating the current cable grounding fault location on the low-voltage side of the transformer substation based on the abnormal data points from the fault cycle. This method can promptly detect and accurately locate cable grounding faults on the low-voltage side of the transformer substation, improving the operational reliability of new energy power plants and ensuring power generation efficiency.

This disclosure provides a control method and apparatus for autonomous vehicles, relating to the field of artificial intelligence, and particularly to the field of autonomous driving. The specific implementation scheme is as follows: when the autonomous vehicle is in autonomous driving mode, the operating mode of the autonomous vehicle is obtained; based on the operating mode, activation information of a takeover device is obtained, the activation information indicating whether the takeover device is activated in the operating mode; activation information is sent to the takeover device; in response to receiving a manual driving takeover signal from the activated takeover device, the autonomous vehicle is controlled to exit the autonomous driving mode and enter a manual driving mode. This embodiment adaptively sets the manual takeover method according to the operating mode of the autonomous vehicle, ensuring the takeover exit function while avoiding the safety risk of accidental takeover exit from autonomous driving.

The utility model discloses installation mechanism and gas detection device, installation mechanism is applicable to gas probe, and installation mechanism includes: seat body, seat body is used for fixing on external spare part, bearing piece, bearing piece is fixed in seat body height direction one side, and bearing piece is the hollow structure of two ends opening, extension piece, extension piece passes through bearing piece and can be limited on bearing piece, and extension piece is telescopic structure, installation piece, installation piece is fixed in extension piece and is away from bearing piece one end, and installation piece is used for installing gas probe, detection pipeline and gas detection interface, one end of detection pipeline is used for connecting with the gas outlet of gas probe, and the other end of detection pipeline is connected with gas detection interface. The utility model has realized the safe and reliable maintenance mode to the gas probe outside the bank, has effectively avoided the safety risk of maintenance personnel because of climbing, has improved work efficiency. And, detection pipeline and gas detection interface provide convenient passage for detecting gas, and it is convenient for maintenance test operation.

This invention relates to an industrial preparation method for 2-methylphenylacetic acid, comprising the following steps: under an inert solvent, 2-methylhalobenzene and malonate diester undergo a coupling reaction in the presence of a catalyst and base A to obtain compound one; compound one is hydrolyzed and decarboxylated under the presence of base B to prepare 2-methylphenylacetic acid; the chemical structural formula of compound one is: [formula missing], where R is a C1-C8 alkyl group. Compared with existing technologies, this invention uses inexpensive raw materials, is simple to operate, can react under normal pressure, has relatively mild conditions, is safe and environmentally friendly, and is easy to industrialize.

This invention provides a lower housing for a battery pack, a battery pack, and a vehicle, relating to the field of vehicle technology. The lower housing includes a housing body and heat exchange plates. The housing body has an open upper cavity. The heat exchange plates are disposed on the outer side of the housing body and have a flow channel structure. The flow channel structure and the outer wall of the housing body together form a flow channel structure, which is used to introduce a heat exchange medium. The lower housing of this invention improves production efficiency and heat exchange efficiency while effectively avoiding safety risks caused by heat exchange medium leakage, thereby significantly improving the safety of the battery pack.

The invention discloses a data center refrigeration energy consumption optimization method, and belongs to the technical field of data center energy consumption control, and the method comprises the steps: obtaining historical time sequence data of the operation of data center machine room equipment, carrying out the preprocessing, obtaining the preprocessed historical time sequence data, and taking the preprocessed historical time sequence data as a training sample; respectively inputting the training sample into a pre-constructed IT energy consumption prediction model and a decision model to obtain a trained IT energy consumption prediction model and decision model; inputting part of historical time sequence data into the trained IT energy consumption prediction model to obtain IT energy consumption prediction information, inputting the IT energy consumption prediction information and sequence data collected in real time into the trained decision model to obtain decision values corresponding to multiple moments in the future, and optimizing the refrigeration energy consumption of the data center through the decision values. The energy consumption of the refrigeration equipment can be reduced.