40 results about "Security design" patented technology

The invention discloses an Internet of Things industry intelligent customer service supervision and control system based on artificial intelligence, and belongs to the technical field of customer service supervision. Comprising an omni-channel intelligent access and intention understanding module, an AI intelligent center and complex decision module, an intelligent supervision and ethical regulation and control module, a man-machine cooperation and humanistic care module, a data-driven optimization and edge intelligent module and a security privacy and controllable treatment module, and the omni-channel intelligent access and intention understanding module is used for integrating multiple channels. Unified request distribution is achieved, data input by a user are analyzed through voice recognition, NLU natural language understanding and image recognition technologies, composite intentions are accurately captured, interaction strategies are dynamically adjusted in combination with device state data, user historical behaviors and real-time positions, and pacified talking skills or manual intervention are triggered through voiceprint / text emotion analysis. On the basis of realizing customer service supervision and regulation, all-channel fusion and intention accurate analysis can be realized, and ethical safety integrated design can be realized.

The utility model discloses a power supply recovery preset switch, and relates to the field of electrical protection and safety design. Comprising an electrified coil, a contact column, a guide rail, a sliding block switch and a reset spring. And the electrified coil and the contact column are fixed on one side of the shell through fixing sheets. The guide rail is trapezoidal, and a trapezoidal thin plate is fixed at the upper end of the guide rail. The slide block switch is of a trapezoidal structure, one side is fixed with the reset spring, the other side is fixed with a small iron sheet and a contact, the center is provided with a coaxial cylinder, the upper end is connected with the switch, and the lower end is connected with a trapezoidal body. The two ends of the reset spring are fixed to the other side of the sliding block switch and the other side of the shell respectively. The utility model has the advantage that a user or equipment can select whether to recover the power supply of a certain electrical circuit or not when the power is returned after the power is cut off. Potential safety hazards possibly caused by sudden starting of equipment after power recovery are avoided.

This invention discloses a big data-based safety design management method for chemical projects, relating to the field of big data technology in chemical safety. The method includes: collecting multi-source heterogeneous data and preprocessing it to form a project baseline dataset; collecting design change data and performing differential comparison with a safety knowledge graph to identify differential objects; starting from the differential objects, performing dependency propagation analysis along the safety dependencies in the safety knowledge graph to output affected objects and risk propagation chains; determining the review order of affected objects based on the risk propagation chains, sequentially extracting the specifications to be reviewed that match the affected objects from the specification knowledge base, determining whether the affected objects meet the specifications to be reviewed, and outputting the specification review conclusion. This invention realizes dynamic and precise management and automated compliance review of chemical project safety design, shifting from experience-driven to big data-driven management.

The utility model discloses a height-adjustable bridge guardrail temporary support device, which comprises guardrail piers and adjusting mechanisms, the top ends of the guardrail piers are provided with fixing tables, the top ends of the fixing tables are provided with fixing rods, the adjusting mechanisms are arranged at the top ends of the fixing tables, each adjusting mechanism comprises an adjusting column, a locking rod and a lifting column, and the locking rods are arranged on the adjusting columns. The adjusting columns are arranged at the top end of the fixing table. According to the height-adjustable bridge guardrail temporary supporting device, through the arranged adjusting mechanism, when a bridge guardrail is temporarily supported, a lifting column in the adjusting mechanism can drive the guardrail installed at the top end to conduct height adjustment, and when the height is adjusted to the safe design height, the height of the guardrail can be adjusted; the height is locked by inserting the locking rod on the adjusting column into the hole of the lifting column, and then the distance between the protective fence and the protective fence pier is measured by using the measuring scale, so that a bridge ox horn protective fence support with a proper height can be conveniently selected subsequently.

The invention belongs to the field of embedded device security design, and particularly relates to a security starting system and method based on dynamic environment binding and heterogeneous inspection. A safe starting framework is constructed through a triaxial accelerometer, a main control chip and a verification module, wherein the main control chip integrates an annular oscillator array, a temperature sensor and a hardware hash engine, and the verification module comprises an AI coprocessor and a block chain communication module. The system firstly collects three-dimensional acceleration and environment temperature data, combines dynamic physical signals generated by an annular oscillator array, and generates a dynamic decryption key through fusion of a hardware hash engine; and then heterogeneous dual-channel verification is formed through the AI coprocessor and the block chain communication module, so that the key validity is ensured. According to the method, a static key is replaced by a dynamic trust root, the bottleneck of a single chain is broken through heterogeneous verification, protection is enhanced through environmental data binding, security and light weight are considered, a real-time industrial control scene with limited adaptive resources is adapted, and attacks such as physical detection and environmental simulation are effectively resisted.

The invention discloses a lithium ion battery cluster fire spreading test method with good safety performance. The method comprises the following steps: S1, building a test model, building a cabin body, and installing a pressure release valve on the cabin body; three clusters of battery packs are arranged in the cabin body, each cluster comprises eight battery packs, the middle cluster is a solid pack, the second pack counted from bottom to top is a heating experiment pack, the left side and the right side of the heating experiment pack are solid battery packs, and the other two clusters are non-solid empty packs. The test process can be accurately controlled, and the accident risk is reduced; sufficient data support is provided for fire behavior analysis; the industrial research and engineering application requirements are met; the analysis result can directly guide battery cluster safety design and fire extinguishing system optimization, and the application prospect is wide.

The application relates to a driver monitoring system optimization method and system based on expected function safety. The method comprises the following steps: selecting a driver monitoring system to be tested; constructing a simulation driving scene; a driver performs visual subtasks and auditory subtasks in the simulation driving scene and is monitored by the driver monitoring system; based on the expected function safety theory, a test index of the driver monitoring system is constructed, the test index comprising exposure, severity and controllability; based on the Bayesian theory, the exposure index is quantified; through analysis of a hazard event of the driver monitoring system, the severity index is quantified; based on the driver cognition theory, the controllability index is quantified; the safety level of the driver monitoring system is given in combination with the exposure, the severity and the controllability, and the system is optimized. Compared with the prior art, the application can cope with risks caused by potential hazard behaviors in non-failure conditions, and provides a reference for function development and safety design of the driver monitoring system.

The application provides a bearing pressing plate gap optimization method and device, a storage medium and an electronic device, and the method comprises the following steps: a dynamics model of a transmission system where a bearing pressing plate is located is constructed; a simulation model of a connecting system where the bearing pressing plate is located is constructed based on the dynamics model, wherein the connecting system comprises the bearing pressing plate, a bearing and a middle connecting plate; the minimum safe design gap and the maximum safe design gap between the bearing pressing plate and the middle connecting plate are simulated and calculated respectively by using the simulation model, and the interval range between the minimum safe design gap and the maximum safe design gap is output as the optimal design gap between the bearing pressing plate and the middle connecting plate. Through the embodiment, the technical problem of low efficiency of the gap design of the bearing pressing plate in the prior art is solved, the development and design efficiency of the bearing pressing plate in the new transmission system is improved, and the development cost and period are reduced.

The invention discloses a meter installation and power connection simulation practical training device and a use method thereof, and relates to the technical field of electric power skill training, a highly integrated modular architecture is adopted, and an installation module, a verification module, a protection module, a wrong wiring check module, an instrument and meter adaptation module and a power supply module are integrated on an operation screen. The assembling module constructs a wiring environment through a standardized wiring terminal, a circuit model and an electric energy meter assembly; the protection module integrates electric leakage, overcurrent and short circuit protection units and corresponding state indication lamps to form a multiple safety protection system. And the false wiring checking module realizes flexible simulation of various typical false wiring scenes through a mechanical change-over switch. According to the invention, through deep combination of modular integration and mobile safety design, on the premise that the practical training process is safe and reliable, the technical problems of single function, limited field and insufficient safety guarantee of traditional training equipment are effectively solved, and comprehensive skill practical training in various scenes is realized.

The invention discloses an impact force analysis method and device for a sling lifting net blocking system and a storage medium. The method comprises the following steps: acquiring physical parameters of each component of the blocking system, constructing a dynamic model of each component based on the physical parameters, and determining a total mass matrix and total generalized elastic force of the system based on the dynamic models of the multiple components; a position constraint equation is established according to the connection relation of all the components, and a kinetic equation of the blocking system is established based on the position constraint equation, the total mass matrix of the system and the total generalized elastic force; determining generalized contact force of a contact area of the wire and the horizontal axis pulley, and solving the kinetic equation based on a generalized method to obtain mechanical response data of the blocking system; and determining the impact force of the blocking system according to the mechanical response data. A reliable basis is provided for impact resistance evaluation and safety design of the system, and the safety and reliability of the network blocking system in extra-high voltage construction are improved.

To provide an environment in which a user can easily confirm information on safety design.SOLUTION: The support device includes a first generator, a second generator, and a manager. The first generator generates, for each of one or more hazard sources included in the target device, first information including an execution result of risk assessment based on an input to a first user interface including a question group according to the risk assessment. The second generator generates, for each of the one or more hazard sources, second information indicating a device configuration and wiring of the safety-related section based on an input to a second user interface for supporting concretization of a risk reduction measure. The management unit manages the first information and the second information in association with each other for each of the one or more hazard sources.SELECTED DRAWING: Figure 1

A support apparatus inputs static data of facilities and dynamic data of the facilities to a control device. The support apparatus includes a display device as an output device. The control device displays a transient contact risk area image and / or a quasi-static contact risk area image on an image of the facilities in an evaluation target space. If the transient contact risk area image is displayed, an evaluator intuitively understands an existence of the transient contact and a location of the transient contact. If the quasi-static contact risk area image is displayed, the evaluator intuitively understands an existence of the quasi-static contact and a location of the quasi-static contact. As a result, the evaluator can consider measures against the transient contact and / or the quasi-static contact.

This application relates to the field of low beam headlight control system technology, and more particularly to a hardwired controller for a headlight controller, comprising: a communicator connected between a higher-level domain controller and the headlight controller; a monitor connected to the higher-level domain controller; and a protection module connected between the communicator and the monitor. The monitor has a PG pin and an RST pin, the communicator has an LH pin, and the protection module has an RST pin. The PG and RST pins of the monitor and the LH pin of the communicator are all connected to the RST pin of the protection module. This application adopts a top-level design from the system architecture level in existing safety designs, adding a PG pin to the LDO. When the LDO output is abnormal, no logic processing by the MCU is required, and the SEPIC chip can enter limp mode.

The embodiment of the invention provides a method for enhancing the security of a time information message, and the method is applied to a first time synchronization node, and comprises the steps: receiving a first time information TOD message, and obtaining preset authentication information and integrity verification; adding the authentication information and the integrity verification information into the first TOD message to generate a second TOD message; and sending the second TOD message to the second time synchronization node, thereby solving the problems that the design of the TOD message in the network is relatively early, no related security design and consideration exist, the time synchronization node for transmitting the TOD message is easy to counterfeit, the overall security risk is relatively high and the like in the related technology, protecting the integrity of clock message transmission, and improving the security of the time synchronization node. The time information is prevented from being tampered in the message transmission process, and the security of message transmission between the first time synchronization node and the second time synchronization node is enhanced.

A large file transfer system for low-bandwidth scenarios on mobile terminals is characterized by comprising: a cloud platform, a routing terminal, and a mobile terminal. The mobile terminal includes a far-field communication module for information connection and a first near-field communication module. The routing terminal includes a second near-field communication module for information connection and a file management module. The cloud platform includes a file system and a messaging system for information connection. This invention overcomes the bandwidth bottleneck of satellite communication on mobile terminals and, through multi-layer encryption and interface security design, ensures the integrity and security of data transmission, making it suitable for various large file transfer scenarios in a satellite internet environment.

The invention discloses a localizable intelligent multilingual spoken language partner training method, system and equipment, and belongs to the crossing field of intelligent language learning equipment and wireless communication technology.The method comprises the steps that firstly, user voice in the external environment is collected, and hardware-level switching is conducted between a Bluetooth mode and a 4G independent mode; in the 4G mode, real-time positioning is supported, a spoken language scene is recommended based on the position, and three partner training modes of real-time dialogue, scene presetting and new word prompting are provided; user learning data generated in the mode is synchronously stored in the cloud; and when the Bluetooth mode is switched to be connected with the mobile phone, the mobile phone APP can request and synchronously display complete historical learning data to form a continuous learning track. According to the invention, the functions of independent communication, positioning perception, scenarized learning and secure communication are integrated, the problems of strong equipment dependence, disjunction between learning contents and scenes, lack of security design and poor data continuity in the prior art are solved, and all-weather and all-scene intelligent spoken language learning and security guarantee are realized.

An Internet of Things device offline authentication method, device and system, the method comprising: receiving an authentication request and generating challenge code information and device wake-up instructions according to the authentication request; sending the challenge code information and the device wake-up instructions to a terminal device for the terminal device to generate and return decoding information and a first digital signature; receiving the decoding information and the first digital signature, extracting a terminal device ID and system public parameters in the first digital signature; generating an identification public key of the terminal device based on the terminal device ID and the system public parameters; and verifying the decoding information and the first digital signature based on the identification public key of the terminal device to determine whether the terminal device is a legal device. The method, device and system provided by the embodiments of the present application can conveniently implement offline identity authentication of Internet of Things devices in an environment without relying on network resources, reduce the complexity of security design and system management of the Internet of Things system, and improve the security of the offline authentication system.

The invention provides a gap optimization method and device for a bearing pressing plate, a storage medium and an electronic device, and the method comprises the steps: constructing a dynamic model of a transmission system where the bearing pressing plate is located; a simulation model of a connection system where the bearing pressing plate is located is built based on the dynamical model, and the connection system comprises the bearing pressing plate, a bearing and a middle connection plate; the simulation model is adopted to simulate and calculate the minimum safety design gap and the maximum safety design gap between the bearing pressing plate and the middle connecting plate, and the interval range between the minimum safety design gap and the maximum safety design gap is output as the optimal design gap between the bearing pressing plate and the middle connecting plate. Through the embodiment, the technical problem that in the prior art, the gap design efficiency of the bearing pressing plate is low is solved, the development and design efficiency of the bearing pressing plate in a new transmission system is improved, and the development cost and period are reduced.

The invention relates to the field of video monitoring systems, and discloses a safe and credible module design and implementation method of a video monitoring system, which comprises the following steps that: a master station end executes classified access management according to the type of video terminal equipment, executes two-way identity authentication based on a hardware chip on safe and credible equipment, and executes white list auditing on other equipment; after the authentication is passed, establishing an encrypted communication channel based on an IPSec protocol and a national cryptographic algorithm; the video terminal performs encrypted transmission and encrypted storage on the data; and the master station end monitors the network state of the terminal in real time, and executes the emergency processing of terminal isolation or network banning when an abnormity is found, and the invention also relates to a multi-device concurrent access processing and network interruption automatic recovery mechanism. Through the integrated security design, the security access of equipment, the encryption protection of the full life cycle of data and the active defense of security threats are realized, and the security, reliability and stability of the system are improved.

The invention belongs to the field of nuclear power reactor safety design in a marine environment, and particularly relates to a method and system for simulating three-phase contact line behaviors in a local deformation runner, and the system comprises a model building module which is used for building a multi-phase flow model coupled with multi-field force; the boundary processing module is used for processing local deformation wall surface and high-flow-speed outlet boundary conditions; and the simulation platform module is used for performing dynamic simulation and post-processing analysis and outputting key physical parameters. By constructing a special simulation platform, dynamic visualization and quantitative analysis of the whole process of formation and expansion of the dry spots in the narrow rectangular flow channel are realized for the first time, and a powerful scientific tool support is provided for revealing the internal mechanism of boiling heat transfer crisis from the mesoscale.

It is a machinery safety management system that can be used by all professional users (1 ) performing field applications without requiring special training and expertise with Machinery Safety Risk Assessment, Safety Design, Safety Validation and Safety Controls, wherein; it comprises users (1 ) who log in to the platform via computers (2) or mobile devices (3) in order to conduct a Machinery Safety Risk Assessment, computers (2) that access the platform during the preparation of reports, mobile devices (3) that provide access to the platform to take photos next to the machine, scan QR codes and add hazards during the risk assessment, cloud environment (4) where the platform application is published, machines (5) for which risk assessment is performed, relationship algorithms (6) containing the relationships between machine types, hazard types, standards, hazard definitions and hazard reduction measures.

A method for determining the hinge reaction torque in the event of a holding-moment hinge deployment impact includes: establishing the system dynamic equations; setting the current values ​​(HoldMarker_H5, HoldMarker_H6) of the holding hinge flags for hinges H5 and H6, and the updated values ​​(HoldMarker_H5_update, HoldMarker_H6_update) of the holding hinge flags for hinges H5 and H6; updating the system generalized coordinate matrix q, the generalized coordinate first-order derivative matrix with respect to time, and obtaining the system generalized coordinate q at the next moment. i The constraint reaction force of each hinge is compared with the structural strength of the hinge. This invention solves the problem of high safety design and testing costs of the entire satellite hinge caused by the large impact torque during satellite antenna deployment.

The support device (1) inputs static data of the facility and dynamic data of the facility to the control device (2). The support device (1) comprises a display device (31) as output device (3). The control device (2) displays a transient contact risk area image and / or a quasi-static contact risk area image on an image of the facility in the evaluation target space. If the transient contact risk area image is displayed, the evaluator intuitively understands the presence of the transient contact and the location of the transient contact. If the quasi-static contact risk area image is displayed, the evaluator intuitively understands the presence of the quasi-static contact and the location of the quasi-static contact. Thus, the evaluator can consider measures against the transient contact and / or the quasi-static contact.

The invention discloses a switch with high safety and high availability, which comprises a plurality of independent switch components integrated together, each independent switch component is at least provided with a normally open contact and a normally closed contact, and the normally open contact and the normally closed contact are linked through a first mechanical component. The normally-open contact and the normally-closed contact control the switch action through a second mechanical part, the normally-open contact of each independent switch part is connected to an external function loop in series, and the normally-closed contact of each independent switch part is connected to an external monitoring loop in series. The switch provided by the invention has four high-safety advantages: (1) when a fault occurs, the switch is oriented to a safety design and has high availability; (2) no single-point fault exists; (3) the dangerous fault rate is lower than 1E-8 / h; and (4) the danger of multiple redundant channels can be detected, and fault safety monitoring under complex conditions can be realized.

The invention discloses a functional security cloud system based on endogenous security design and an implementation method thereof, the system is deployed on a cloud platform, and the system comprises a functional security core management layer for defining and managing security requirements and states of workloads on the cloud; the endogenous security execution environment module is used for acquiring heterogeneous resources according to security requirements, creating and managing a dynamic redundancy unit for a working load, and outputting a consistent result through a mimicry scheduling and multi-mode decision mechanism; the security situation awareness and collaborative response module is used for monitoring the operation situation of the system and analyzing abnormal events; the module reports an abnormal event to a functional security core management layer; and the functional security core management layer drives the workload to perform security state transition and issues a corresponding control instruction to the execution environment. Compared with the prior art, deep fusion and integrated guarantee of function security and network security on a cloud platform are realized through a closed-loop mechanism of security event-driven service state transition and state decision feedback control security execution.

The large file transmission system based on the mobile terminal low-broadband scene is characterized by comprising a cloud platform, a routing terminal and a mobile terminal, the mobile terminal comprises a far-field communication module and a first near-field communication module which are in information connection, and the routing terminal comprises a second near-field communication module and a file management module which are in information connection. The cloud platform comprises a file system and a message system which are in information connection; according to the invention, the bandwidth bottleneck of mobile terminal satellite communication is broken through, the integrity and security of data transmission are ensured through multi-layer encryption and interface security design, and the method is suitable for various large file transmission scenes in a satellite internet environment.

A marine medium-voltage power distribution cabinet disclosed by the present invention comprises a cabinet body and a plurality of function chambers arranged in the cabinet body, and the function chambers comprise a handcart chamber arranged in the middle of the front side of the cabinet body, a bus chamber arranged at the upper part of the rear side of the cabinet body, a primary cable chamber arranged at the lower part of the rear side of the cabinet body, and an instrument chamber arranged at the upper part of the front side of the cabinet body. The secondary cable chamber is arranged at the lower part of the front side of the cabinet body; the functional chambers are isolated from one another through metal partition plates; an automatic temperature and humidity sensor and a heater are also arranged in the cabinet body; a handcart type circuit breaker is arranged in the handcart chamber, the handcart type circuit breaker comprises a handcart and a circuit breaker, a chassis of the handcart is grounded, and a spring grounding contact is adopted; the handcart chamber, the bus chamber and the primary cable chamber are respectively provided with an independent pressure release channel which is connected to the top of the cabinet body. The marine medium-voltage power distribution cabinet provided by the invention meets the requirements of environmental adaptability design and safety design at the same time.

This invention belongs to the field of turntable support arm technology and discloses a biomimetic support arm structure based on failure safety design. It includes an upper support arm and a lower support arm, both employing the same "finger-palm" shaped structure, each including fingers and palms, with the palms facing each other. Each finger is composed of multiple parallel and independent load channels with equal stiffness. The palms of both support arms connect to form a "V" shape and connect to the external frame. The fingers connect to the turntable support ring. The upper and lower support arms, together with the turntable support ring, form a triangular load-bearing structure. This support arm structure solves the problem of high-reliability load bearing of large-scale one-dimensional turntable support arms under complex, cyclic, alternating large loads. Furthermore, when structural failure occurs in the local load-bearing area, the failure will not extend to other force transmission paths. It can still reduce the load-bearing capacity of the support arm for a certain period of time, while ensuring that the load-bearing function does not fail, thus achieving a failure safety design.

This application discloses a security design and architecture for multi-tenant Hadoop clusters. In one embodiment, in a multi-tenant Hadoop cluster comprising multiple tenants and multiple applications, a method for identifying, naming, and creating a multi-tenant directory structure in the multi-tenant Hadoop cluster may include: (1) identifying multiple groups of a directory structure selected from groups consisting of a superuser group, multiple tenant groups, and at least one application group; (2) creating a valid directory for each of the groups; (3) adding each of the multiple users to one of the multiple tenant groups and the application group; (4) creating a tenant directory and a home directory for the users; and (5) assigning an owner, group owner, default permissions, and extended access control lists to the tenant directory and the home directory.