77results about How to "Prevent tampering" patented technology

This invention belongs to the field of integrated circuit design technology, specifically relating to a method for optimizing integrated circuit design data. This method first constructs a "tool-layer-semantic" data acquisition architecture, integrating multi-channel parallel acquisition units to collect heterogeneous data from multiple sources. Compliance pre-verification is performed through hardware logic circuits and a verification rule base, extracting key data identifiers. A three-level incremental compression strategy based on key data priority, combined with an intelligent index integrating multi-dimensional indexes, is used for compression and storage. The stored data undergoes multi-dimensional optimization, including semantic deduplication, priority optimization, format conversion, and source quality backtracking, forming a unified format optimized semantic. Through an interactive interface, it is adapted and interacted with electronic design automation tools. After consistency verification and performance testing feedback loops, the final design data and full-process traceability information are obtained and stored. This invention achieves unified management, efficient compression, intelligent optimization, and full-process traceability of design data.

The application discloses an industrial steel cutter with adjustable cutting depth and an implementation method thereof, and relates to the technical field of industrial cutting tools, aiming to solve the problem that most of the existing industrial steel cutters adopt fixed structures or simple bolt adjustment structures, the cutting depth of the fixed steel cutter cannot be adjusted, and the steel cutter can only adapt to a single machining condition, the bolt adjustment structure only relies on a single bolt locking, and cannot realize micron-level precision fine adjustment, and the technical scheme is as follows: the industrial steel cutter comprises a cutter body shell, a connecting seat with holes, a telescopic blade assembly, a fine adjustment driving assembly and a connecting assembly, a mounting cavity is arranged at the bottom of the cutter body shell, the connecting assembly is slidingly assembled in the mounting cavity, a driving cavity is arranged at the top of the cutter body shell, the telescopic blade assembly and the fine adjustment driving assembly are connected through the connecting assembly, the industrial steel cutter adopts a worm gear and differential variable pitch screw composite transmission structure, the worm gear has a speed reduction transmission effect, and micron-level cutting depth fine adjustment can be realized.

The application provides an embedded device firmware security upgrade method and system in the technical field of embedded devices, which comprises the following steps: S1, a server sets two firmware encryption rules and rotation rules; S2, the firmware file is encrypted into encrypted firmware based on the rotation rules and the firmware encryption rules; S3, after the upgrade terminal checks the received encrypted firmware, the upgrade terminal sends an upgrade preparation command to the embedded device; S4, after the embedded device checks the upgrade preparation command, the embedded device feeds back a first check result; S5, the upgrade terminal sends the encrypted firmware to the embedded device; S6, the embedded device decrypts the encrypted firmware to obtain the firmware file and feeds back a firmware receiving result; S7, the upgrade terminal sends a check command to the embedded device and receives a second check result; and S8, the upgrade terminal sends an upgrade start command to the embedded device. The application has the advantage that the security of the embedded device firmware upgrade is greatly improved.

The embodiment of the utility model relates to the technical field of automobile parts, and discloses a mounting bracket and a vehicle. The second surface of the mounting plate faces the side wall metal plate, a conical hole penetrating through the first surface and the second surface is formed in the mounting plate, the large-diameter end of the conical hole faces the first surface, the connecting piece comprises a rod part and a conical head part matched with the conical hole, and the rod part penetrates through the conical hole from the first surface to the second surface and is connected with the side wall metal plate; the outer conical surface of the conical head part presses the inner surface of the conical hole, and the rotary connecting part is connected with the mounting plate. According to the mounting bracket provided by the invention, the channeling probability of the mounting bracket can be reduced, and the connection stability between the mounting bracket and the side wall metal plate is improved.

The application provides a thermal management integrated module, a fault information reading method and system, and a vehicle. The thermal management integrated module comprises a plurality of electronic actuators, a controller and a memory. Each electronic actuator corresponds to a component. Each electronic actuator and the memory are in communication connection with the controller. The memory comprises: a dynamic message receiving and sending storage area, which is used for storing messages received and sent by each electronic actuator at a preset period during normal communication; a fault type counting area, which is used for storing the number of times that each electronic actuator is diagnosed as each preset fault type; and a fault frame storage area, which is used for storing the current communication frame at the moment of fault occurrence, subsequent continuous frame messages, a fault code and a time stamp when any electronic actuator fails. The application can realize centralized, faithful and safe fault information management of a multi-actuator thermal management system.

This invention provides a heat treatment method for stainless steel reed wire, relating to the field of reed wire heat treatment technology. The vertical take-up device includes a support frame and a rail; a movable component is mounted on the rail, and a winding structure is fixedly mounted on the top of the movable component; a wire transfer drum is fixedly mounted at the bottom of the vertical shaft, and the reed wire body is spirally wound around the outside of the wire transfer drum; auxiliary structures are provided on both sides of the top of the support frame, and a guide component is fixedly mounted on the outside of the support frame; precise wire guidance is achieved through the upper and lower guide rollers of the guide component, and the wire is clamped and fed by the wire transfer drum and auxiliary rollers, preventing wire deviation, shifting, and tangling from the source; the auxiliary structure can adjust the clamping force on the reed wire body, ensuring constant tension, tight and uniform wire arrangement, and neat coiling during the winding process, facilitating subsequent transportation, straightening, and stamping processing, thus solving the problems of wire deviation and shifting.

The application relates to the technical field of batteries, in particular to a battery module which comprises a shell, a battery cell assembly, a first supporting assembly, a circuit board and a stop member; wherein the battery cell assembly, the first supporting assembly, the circuit board and the stop member are arranged in the shell. The application provides a battery module, a stop member is arranged at the top of the integrated body of the battery cell, the supporting member and the circuit board, so that the battery cell module can be limited, the battery cell, the supporting member and the circuit board and the like can be effectively prevented from moving along the up-down direction during use, the battery cell and electronic components thereof can be protected from being damaged, meanwhile, the insulating material on the circuit board can be prevented from being abraded and failed. In addition, two first supporting members are additionally arranged between the circuit board and the battery cell, so that the relative movement between the PCB and the battery pack is limited, and the tab is prevented from being pulled and torn. In addition, heat dissipation fins are arranged between the battery cell assemblies, so that the battery cells are cooled, and the heat dissipation fins occupy small space.

The application discloses a kind of network unmanned aerial vehicle inspection achievement automatic back transmission and defect identification method, it is related to power distribution network inspection technical field.The purpose is to solve the problems of low efficiency, fault response lag, data transmission without security and defect identification relying on artificial in traditional manual inspection.The method comprises: unmanned vehicle carries unmanned aerial vehicle and hangar drives to parking point, unmanned aerial vehicle takes off and carries out inspection and collects achievement data;After unmanned aerial vehicle returns, unmanned aerial vehicle platform processes and transmits achievement data to unmanned aerial vehicle management platform;Management platform uses AI image recognition technology to identify defects in data, generates identification results;Finally, management platform synchronizes identification results to power grid digital brain platform, and is associated with equipment operating state storage.The application realizes the full-process automation and intelligentization of distribution network inspection, greatly improves the inspection efficiency and the accuracy of data processing, optimizes the fault response mechanism, and provides strong support for the intelligent operation and maintenance of distribution network line.

This invention provides a method, device, medium, and product for processing database plugins. The method includes: obtaining the script file of the database plugin; identifying program objects in the script file and extracting the program body; encrypting the program body using a pre-built encryption key to obtain an encrypted program body; replacing the program body in the corresponding program object with the encrypted program body to obtain an encrypted program object; preprocessing the pre-built encryption key and embedding it into the binary file of the database plugin; recording the mapping relationship between the identifier code of the encrypted program object and the storage location of the pre-built encryption key to obtain an encrypted plugin package. The program body in the database plugin is converted into ciphertext, so users can only view the ciphertext and cannot directly view the original code, thus preventing the exposure of the developer's core business logic and protecting the developer's technology.

The utility model relates to a bearing protection device of mechanical grading mill, including frame, two main motors are installed to both sides of frame, the output of two main motors installs grading wheel drive, grinding disc drive respectively, grinding disc drive and grading wheel drive connect hollow shaft and solid axle through V type belt respectively, solid axle is placed in hollow axle hole, grinding disc is installed on hollow axle, and is inside the cavity of grinding cavity, grading wheel is installed on solid axle, and is above grinding disc inside the cavity, the upper and lower end of hollow axle is provided with big bearing respectively, and is supported by big bearing, the upper and lower end of solid axle is provided with small bearing respectively, and is supported by small bearing, the outer ring of grinding disc is provided with toothed grinding ring, the cavity of grinding cavity is provided with air guide ring below, and air guide ring is below toothed grinding ring, compared with prior art, the utility model can improve the service life of bearing, reduce the wear and tear and failure risk of bearing, and further improve the effect of equipment grinding and grading.

This invention discloses a data security transmission method, apparatus, terminal device, and storage medium based on TPUNB communication, belonging to the field of communications. The method is applicable to the central node of an IoT communication terminal network; both the terminal node and the central node have preset initial keys. The method includes: decrypting routing lookup information broadcast by the terminal node according to the initial key; determining the target domain network number to which the terminal node belongs and determining the corresponding target domain key according to the decrypted routing forwarding identifier; encrypting the target domain key and the terminal address ID to be assigned according to the initial key to generate key allocation ciphertext and sending it to the terminal node; decrypting the key confirmation ciphertext sent by the terminal node according to the target domain key, encrypting and generating a key confirmation reply ciphertext and sending it to the terminal node; and decrypting the service ciphertext after the terminal node iteratively encrypts the data to be transmitted to obtain the original data to be transmitted. By implementing this invention, the problem of decreased transmission integrity in existing technologies is solved.

This invention discloses a multi-tenant end-to-end data security isolation and control system and method, belonging to the field of vehicle network data security. It aims to solve the problems of easy data crosstalk, discontinuous isolation, unreliable trust benchmarks, and difficulty in compliance traceability in multi-tenant scenarios. The system generates a tenant root identifier (TID) for vehicle enterprise tenants, which, together with the device sub-identifier (DID), forms a tenant identifier chain. This chain is synchronized with a trusted authentication center to establish a vehicle-cloud hardware-level trust root. When the vehicle terminal accesses the system, it completes two-way identity authentication and allocates a dedicated message queue telemetry transmission MQTT topic partition and access permissions according to the TID. The terminal collects time-series vehicle control data and generates encrypted data frames with intrinsic identifiers and checksums for uploading. The access gateway performs dual isolation verification before transparent transmission. Data is forwarded to an independent logical storage partition for isolated storage according to the TID. This invention achieves strong hardware-level isolation, real-time verification, and full traceability throughout the entire end-to-cloud chain, effectively preventing cross-tenant data leakage.

This application discloses a method and apparatus for processing trusted data, relating to the field of software technology. The method includes: after metadata is generated in a generation environment, transmitting the metadata to a computing environment; in the computing environment, performing computational operations on the metadata to verify the computational result, and after the computational result passes verification, transmitting the descendant metadata to an application environment, wherein the descendant metadata is obtained from the metadata after the computational operation; in the application environment, performing application verification on the data user subject when performing application operations on the descendant metadata, and after the data user subject passes application verification, storing the descendant metadata. This application is used to implement trusted data processing functions.

This invention discloses a method for an application server to obtain configuration data in a mission-critical service system. The method involves generating and updating initial configuration data, basic configuration data, and user configuration data through a configuration management system. The basic configuration data and the initial configuration data, which includes database system information and user configuration read identifiers, are sent to the application server. The application server establishes a connection with the database system based on the database system information. It determines whether to retrieve user configuration data based on the user configuration read-on-demand identifier. If the identifier is "yes," user configuration data is not retrieved, but the connection between the application server and the database system is maintained. If the identifier is "no," all user configuration data is retrieved from the database system at once, and the connection with the database system is no longer maintained. Each business sub-module is started using the basic configuration data. The database system is used for storing and accessing configuration data.

This utility model discloses a deburring device for shoe soles in shoe processing, including a slide rail and a limiting platform. The limiting platform is inserted into the slide rail, and a limiting mechanism is also included. The limiting mechanism includes a bottom slide bar, a side slide bar, a side slide groove, a downward groove, a tail groove, an L-shaped support plate, an electric push rod, and an inclined pressure block. By improving the slide rail and limiting platform of the existing patented shoe sole deburring device and adding a limiting mechanism, during the deburring process of the limiting platform supporting the shoe sole, the electric push rod of the limiting mechanism can push the inclined pressure block down and press it against the downward groove, so that the limiting platform, bottom slide bar, side slide bar, and slide rail form a tight limiting relationship, effectively preventing the limiting platform from moving when the shoe sole is under grinding force, thereby ensuring that the limiting platform stably supports the shoe sole for deburring and grinding, and greatly improving the deburring and grinding accuracy of the shoe sole.

This application provides an operation processing method, apparatus, device, and readable storage medium. In the technical solution provided by this application, a dual-level processing mechanism of message level and point level is constructed. At the message level, permission conflict detection based on user identity is introduced to effectively prevent non-creator users from accidentally deleting or tampering with other people's content, thus achieving fine-grained operation isolation. At the point level, conflict detection is pushed down to the smallest data unit coordinate point. By comparing the point position sets of the current operation and the historical operation, the spatial overlapping area is accurately identified, and the operation type corresponding to the current operation message is combined to dynamically determine whether execution is allowed, ensuring that the operation result is certain and predictable. This achieves hierarchical deterministic operation conflict processing, improving the smoothness and user experience of the online collaborative whiteboard system.

This invention relates to the field of data evidence storage technology, and discloses an industrial instrument data evidence storage middleware and its pulse atomization signature method. The middleware includes a physical interface layer and a microcontroller unit (MCU). The transceiver circuit of the physical interface layer includes: an RC inverse attenuation network, connected in series in the receiving channel, attenuating the inverse command signal level to below the standard transceiver differential identification threshold, realizing one-way monitoring and authorization at the physical layer; and an optocoupler isolation circuit, connected in parallel in the pulse input channel, with its output directly connected to the MCU's highest priority external interrupt (EXTI) pin, forming a hard-coupled pulse triggering path. After EXTI triggering, the MCU enters the highest priority ISR, atomically locking the original evidence to a volatile buffer. After exiting the ISR, it asynchronously completes hash and PUF-derived private key signature operations in the background and sends the evidence storage frame using the bus idle window. The evidence storage data is written to the NVM logical partition through the ZoneLock mechanism and is irreversibly locked. Combined with chained hash verification, data integrity and timing are ensured.

This application relates to the field of lithium-ion batteries and discloses a lithium-ion battery including a casing, a cell assembly, a positive electrode post, and a negative electrode post. The casing includes a first casing structure and a second casing structure. The cell assembly includes a first cell and a second cell, the length of the first cell along a first direction being less than that of the second cell. The first cell includes a first surface and a second surface. The casing has a stepped surface corresponding to the second surface of the first cell. The positive tabs of both cells are electrically connected to the positive electrode post, and the negative tabs are electrically connected to the negative electrode post. The first cell includes a single-sided negative electrode sheet near the casing. The single-sided negative electrode sheet includes a first surface near the casing and a first hot melt adhesive layer located between the first surface and the casing. A first adhesive layer is formed on the edge of the single-sided negative electrode sheet corresponding to the first surface. The first adhesive layer includes a portion located between the first cell and the casing, and the thickness of the first adhesive layer is less than that of the first hot melt adhesive layer. This can improve the battery capacity and the stability of the first cell within the casing.

This invention belongs to the field of fluid machinery and tribology, and discloses a ceramic friction pair thrust disc suitable for high-temperature operation of sealless pumps. The ceramic friction pair thrust disc includes a metal thrust disc base, a ceramic friction ring, a metal bushing, and fastening screws. This invention achieves uniform circumferential stress transmission by setting an integral metal bushing around the ceramic friction ring and using an interference fit determined based on thermal expansion difference and strength verification. This structure effectively avoids the problem of localized stress concentration or cracking of the ceramic ring caused by empirically determined interference fit values ​​in existing technologies. By rationally controlling the interference range, the metal bushing can maintain a pressing effect on the ceramic ring under high-temperature conditions without exceeding the allowable strength of the ceramic material, ensuring that the ceramic end face remains flat for a long time. Compared with the traditional solution that relies solely on large interference fit, this invention can provide a stable and controllable pressing force at high temperatures.

This utility model provides a bending device for a vertical winding machine, belonging to the field of transformer technology. It includes a base, a middle plate, side plates, a length measuring device, and a bending system. The middle plate and side plates are located within the base, with a slewing bearing one and a slewing bearing two connected to their respective ends. Both slewing bearings one and two are connected to the inner wall of the base. A reduction motor one is mounted on the outer wall of the base where the slewing bearing two is located, and the reduction motor one is connected to the slewing bearing two via gears. Two sets of the bending system are provided, with identical structures, symmetrically arranged on both sides of the middle plate. The base's position is adjusted using a distance adjustment device. The length measuring device is located within the base. This utility model adjusts the bending distance according to the bending length, and uses left and right clamping devices to clamp the wire before bending. This bending device has the advantages of high distance measurement accuracy, precise bending angle, and adjustable bending length.

The invention provides a memory partitioning method and device, equipment and a storage medium, and relates to the technical field of memories. The memory comprises an irreversible programming storage unit and a main storage unit, and the method comprises the following steps: obtaining user partition configurations respectively corresponding to a plurality of preset user partitions in the irreversible programming storage unit; calculating physical address boundaries of a plurality of storage blocks respectively corresponding to the plurality of user partitions in the main storage unit according to the user partition configuration; acquiring a storage access address; and comparing the storage access address with the physical address boundaries of the plurality of storage blocks, and generating access signals of the plurality of storage blocks. According to the embodiment of the invention, flexible configuration of memory partitions can be realized.

This invention relates to the field of tinplate printing technology, and more particularly to a tinplate printing anti-offset system based on multi-reference visual positioning. The system includes a fixed platform with a micro-perforated vacuum suction cup on top, and a tinplate workpiece placed on the top of the suction cup. An adjustment seat is also provided on the fixed platform, and a bracket is fixedly connected to the middle of one side of the platform, with a stepped pressing mechanism mounted on the bracket. This invention improves the positioning accuracy and offset correction effect of tinplate printing through multi-structure synergy, avoiding problems such as inaccurate positioning, delayed correction, and warping offset in traditional methods. Through leveling by the stepped pressing mechanism, suction by the vacuum suction cup, translational deflection correction by the adjustment seat, and positioning by photoelectric sensors, it ensures printing accuracy and reduces scrap rates. Furthermore, it achieves flexible protection of the tinplate and fully automated operation, with elastic pressing and non-contact suction preventing damage to the tinplate, and automated linkage improving production efficiency.

A 3D digital transfer management cloud platform, management method, equipment, and medium include: a project management module for creating new projects and using a directory template to allocate project data uploaded by each participant at each stage to the corresponding directory structure; a deliverables transfer module for performing data quality review and optimization processing on the digital deliverables to be transferred selected in the project management module, and transferring the reviewed and optimized digital deliverables to the digital asset management module; a digital asset management module for receiving digital deliverables from the deliverables transfer module, performing asset coding, classification, and attribute information entry, and storing them in a 3D design general model library; and a data display module for obtaining the transferred models from the digital asset management module, performing 3D model browsing, and model-image linkage. The deliverables transfer module of this application supports data transfer, quality review, and optimization processing to ensure the accuracy, completeness, and usability of the transferred data.

The application discloses a kind of based on low temperature embrittlement cooperates prefabricated mark guide plate stamping equipment, including base and the shelf plate of being movably arranged on base, the holding module for being clamped and positioning outside the processing area of tensioning the plate to be processed of outside the plate to be processed is arranged between the base and shelf plate, and the groove prefabricated module for processing V-shaped guide groove to outside the plate to be processed preset fracture zone, the low-temperature cooling module for the plate after being processed by groove prefabricated module is arranged on the side of base, to reduce the temperature of plate and maintain low-temperature atmosphere by being used for rapid cooling, and the control cabinet for being respectively communicated connection control with holding module, groove prefabricated module and low-temperature cooling module.The application solves the problem that traditional stamping process handles high-strength alloy plate and the outer ring component of difficult deformation material, because prefabricated mark processing, low-temperature treatment and stamping forming link discrete layout lead to parameter matching, low-temperature embrittlement uncontrollable, difficult to realize the problem of accurate control of fracture surface quality.

This invention relates to the field of controllers, specifically an electronic controller, comprising a housing, within which an energy storage element is disposed; the energy storage element is connected to the housing via a mounting unit; the mounting unit includes an anti-detachment unit and / or a limiting unit; the anti-detachment unit prevents the energy storage element from detaching from the housing; the limiting unit prevents the energy storage element from moving within the housing; this invention, through the installation unit, improves the stability and accuracy of the energy storage element's installation within the housing, while also facilitating the installation of the energy storage element; through the combined use of the anti-detachment unit and the limiting unit, the opposing blocking mechanism in the anti-detachment unit applies a backward pressing force to the columnar energy storage element; thereby achieving the fixed stability of the columnar energy storage element; the limiting unit provides axial limiting for the columnar energy storage element, preventing its movement within the housing.

The utility model relates to a battery technical field discloses a kind of battery cell structure and battery, including battery cell body, tab and fixed adhesive paper, tab is fixedly connected with battery cell body;Fixed adhesive paper is attached to the surface of battery cell body, fixed adhesive paper has empty portion, along the thickness direction of battery cell body, empty portion is oppositely arranged with tab;Along the thickness direction of battery cell body, the projection area of fixed adhesive paper is S, unit is mm 2 , the mass of battery cell body is M, unit is g, satisfy: S / M is greater than or equal to 15。Empty portion makes in the position of tab and battery cell body connection not to add the thickness of fixed adhesive paper, reduce the overall thickness of battery cell structure, improve the energy density of battery;In addition, the ratio of the projection area of fixed adhesive paper and the mass of battery cell body is greater than or equal to 15mm 2 / g, can avoid that the projection area of fixed adhesive paper is too small and make the adhesion between battery cell body and packaging shell too small, guarantee the mechanical property of battery when drum falls.

This application provides a method, apparatus, device, medium, and program product for security detection of application behavior, relating to the financial technology field. It includes: based on the startup status of a banking application installed on a terminal device under test, in a trusted execution environment corresponding to the security chip of the terminal device, real-time collection of sensitive behavior data of the banking application; in the trusted execution environment, risk analysis processing of the sensitive behavior data is performed based on the historical usage data of the banking application corresponding to the terminal device to determine the risk category of the sensitive behavior data; based on the risk category, a security report for the banking application is generated, and a security report generation prompt is displayed; in response to the user's viewing operation of the prompt, abnormal behavior verification is performed on the terminal device and the banking application in the trusted execution environment; if the verification is successful, the security report is de-identified to obtain and display a de-identified security report. The method of this application improves the security of application behavior detection.