15results about How to "Absolutely safe" patented technology

The invention provides a low-power-consumption near-field coupling energy supply OTA circuit, belongs to a wireless software upgrading technology, aims to solve the wireless upgrading problem of a GNCE control system, and comprises a near-field coupling energy supply module which is used for locally supplying energy to the system, eliminating system placement direction limitation and switching resonant frequency through a self-adaptive resonance matching unit to realize the optimal energy supply efficiency. A primary power supply is output to the power management module, and the energy supply state is monitored in real time; the power management module is used for providing a secondary power supply for the OTA security upgrade verification module and the OTA upgrade task execution module according to a preset power-on time sequence and an enabling sequence; the OTA security upgrading verification module is used for judging the security of a system and a source program, confirming feedback through double channels of a visual signal and a wireless encryption signal, ensuring the security and accuracy of an upgrading process, supporting remote and local double supervision and preventing software burning failure and tampering; and the OTA upgrade task execution module executes the functions of upgrade process control, state monitoring, program receiving, verification, backup, burning, rollback and the like.

This invention relates to a high-voltage interlock precision fault location system and method based on a multi-level resistor network, relating to the field of electric vehicle battery management systems (BMS). The system includes a battery management system and at least two high-voltage connectors. The battery management system is equipped with a resistance detection circuit. Each high-voltage connector contains an interlock resistor with a known resistance value. The interlock resistor is electrically connected to the resistance detection circuit, forming a high-voltage interlock detection loop. The battery management system locates the specific high-voltage connector where the fault has occurred by detecting changes in the resistance value of the high-voltage interlock detection loop. This invention achieves precise fault location, multi-level state identification, and graded safety control for high-voltage interlock faults, significantly improving fault diagnosis efficiency and vehicle availability while ensuring the safety of the high-voltage system.

The invention relates to the technical field of intelligent security and protection monitoring, in particular to an intelligent prevention and control system and method for an on-duty perimeter electronic sentry based on AI vision, and the system comprises a full-dimensional sensing module which collects visible light, thermal imaging video streams and radar detection data of a perimeter area; the intelligent analysis module is used for carrying out behavior feature extraction on the video stream based on a deep learning model and generating a three-dimensional track vector of an intrusion target; the comprehensive management and control module maps the real-time track of the invasion target to a virtual electronic defense area for visual presentation; and the linkage processing module is used for scheduling the sound optical driver isolation equipment and the unmanned aerial vehicle countering unit according to the threat level logic resolving result. According to the invention, by fusing AI vision and a multi-dimensional perception technology, accurate identification and all-weather automatic tracking of perimeter intrusion behaviors are realized, the problems of dependence on manpower, existence of blind areas and response lag in traditional security and protection are solved, and the three-dimensional prevention and control level and emergency response speed of an on-duty area are greatly improved.

The application discloses a vertical annular winding machine for automatically changing film rolls and relates to the technical field of packaging equipment. The application comprises a lifting frame, the bottom of the lifting frame is provided with a freight table, the top of the freight table is placed with goods, the lifting frame is fixedly installed with a lifting module, the inside of the lifting frame is slidably installed with a rotating work ring, the rotating work ring is drivingly connected with the movable end of the lifting module, the movable end of the rotating work ring is provided with an automatic film changing film seat, and the automatic film changing film seat is used for transferring the film roll between the unloading position and the film changing position by following the rotation of the rotating work ring. The application is accurately matched by four sets of servo mechanisms, each execution action is supported and operated by a specially designed automatic film unloading mechanism, an automatic film sliding positioning mechanism, an automatic film changing film seat and an automatic film changing platform, and the absolute safety, high efficiency, convenience, low cost and humanized operation of the winding operation are ensured.

The invention discloses a gray release verification method for a localized cloud charging system, and the method comprises the steps: introducing a twinborn state transaction verifier which carries out the synchronous verification of the context states of new and old version applications at a plurality of key state points of a charging transaction, achieves the in-event discovery and real-time intervention of logic deviation, and improves the verification efficiency. Therefore, the actual occurrence of wrong transactions is avoided. Meanwhile, the invention provides an RCI (Relief Confidence Index) model, the performance of the new version on consistency, performance and stability is comprehensively quantified, and subjective judgment is converted into scientific data decision. According to comparison of the RCI value and the preset threshold value, the system can automatically execute operations such as rollback, verification range expansion or promotion suggestion and the like, and intelligent and staged transition from single-point verification to total release is realized. According to the method, on the premise of guaranteeing zero interruption of the service, deep and safe verification and automatic decision issuing of the new version application can be realized, and the reliability and efficiency of updating of the key service system are remarkably improved.

The invention belongs to the field of construction elevators, and provides a suspension type descending construction elevator which comprises a base station system, a guide rail frame, a suspension cage system, an attached wall and a guardrail, and the base station system forms a power core of the guide rail frame, a safety control center of the whole elevator and a core bearing base. The guide rail frame is formed by connecting a plurality of standard knots through high-strength bolts, the top end of the guide rail frame is connected with the base station system, the whole guide rail frame is in a suspended state, the bottom of the guide rail frame is freely suspended, the attached wall is used for improving the stability of the guide rail frame and comprises an attached wall frame and a roller device, and the guardrail surrounds the periphery of an operation channel of the guide rail frame and the cage system. And the safety protection effect is achieved. The elevator is specially designed for a downward construction scene, and is characterized in that the elevator is suspended and mounted from the ground or an upper-layer stable structure, and the guide rail bracket can be downwards added along with the engineering construction depth, so that a safe, efficient and stable vertical transportation solution which does not occupy the pit bottom operation space is provided for deep downward construction.

The utility model relates to a leg massage device relates to health care product technical field, its main structure is: massage layer inside has oil storage cavity, a plurality of massage ball is rotatably installed on one side of massage layer body, the other side of massage layer body is fixedly installed in the inner side of bandage, one end of oil injection pipe is connected oil storage cavity through the hole on massage layer body, the other end passes through the bandage and is used as oil injection mouth, and the oil injection mouth is sealed through the detachable sealing plug, the outer side of bandage is fixedly installed with two handles, the outer side of one end of bandage is installed with magic tape hook face, and the inner side of the other end is installed with magic tape nap surface, the utility model discloses through enlarging massage range realizes leg full package massage, can use the essential oil to promote massage efficiency and comfort, and simultaneously need not power drive, ensures the safety of massage process.

The invention provides a hybrid ANPC three-level inverter PWM signal control method and system. The method comprises the steps that S1, logic conditions are defined; s2, converting the logic condition and a control signal of an upper-layer control system into an input condition of a PWM signal control function block, judging whether the input condition meets the logic condition or not, and when all the input conditions meet the logic condition, outputting a PWM pulse signal corresponding to a corresponding insulated gate bipolar transistor (IGBT) device; and S3, the pulse signals are fed back to the PWM signal control function block as limiting conditions, the PWM signal control function block evaluates all the input conditions again according to the limiting conditions, and if the input conditions do not meet the logic conditions, the output pulse signals are adjusted until all the input conditions meet the logic conditions again. The IGBT device has the advantages of simple structure, high stability and the like, and the switching state of the IGBT device can be accurately controlled.

The invention discloses a solid state disk master control device, and belongs to the technical field of solid state disks. A mixed storage architecture is adopted and comprises a controller, a nonvolatile storage medium, a volatile storage medium and a plurality of NAND flash memories, the nonvolatile storage medium and the volatile storage medium are used in a mixed mode, and hierarchical and classified storage is carried out according to data characteristics; the nonvolatile storage medium and the volatile storage medium are integrated in the same address space through the controller, and intelligent hierarchical management of data is realized. Host write-in data is directly cached in a nonvolatile medium, metadata is stored in a volatile medium, and when the data size reaches a set threshold value, the data size is automatically brushed down to an NAND flash memory. According to the invention, an external capacitor is not needed, standby power-free data protection is realized through hardware architecture innovation, the material cost is obviously reduced by 20-40%, the PCB layout space is released, and the data loss risk caused by capacitor aging is fundamentally eliminated.

This invention discloses an adaptive data acquisition, signing, and encapsulation method and system for the Internet of Things (IoT). The method includes: dynamically determining a batch signing threshold based on environmental parameters; acquiring data in real time, calculating and caching hash values, and encapsulating the data and its corresponding hash values ​​into data packets for transmission to the cloud; when the number of transmitted data packets reaches the batch signing threshold, triggering a signing operation, generating an overall digital signature for all cached hash values ​​using a built-in private key, and encapsulating the set of all hash values ​​and the overall digital signature into a signature packet for transmission to the cloud for cloud verification of data integrity and batch confirmation of data packet authenticity. This invention changes the traditional strongly bound encapsulation mode of "data + signature," separating the data packets and signature packets into separate encapsulations, changing the traditional "signature for every packet" to "acquisition and transmission as needed, batch signing," greatly reducing the frequency of asymmetric encryption by hardware security chips, eliminating transmission congestion caused by encryption, and significantly increasing system throughput.

The invention belongs to the technical field of medical instruments, and particularly relates to a modular multi-frequency laser therapeutic instrument. The laser therapeutic instrument mainly comprises a laser therapeutic instrument body. The laser therapeutic instrument main body comprises a rack, and an output seven-section light guide arm module, a laser module, a deionized water filtering module and a power supply module which are arranged on the rack. According to the invention, full-level treatment coverage from dermis heating to epidermis exfoliation is realized through cooperative output of dual-wavelength laser, and diversified clinical requirements are met. The modular design enables the laser cavity, the treatment hand tool and the optical fiber assembly to be independently replaced, thereby greatly improving the maintenance convenience and use flexibility of the device. The energy closed-loop control system ensures high stability of laser output and treatment, so that absolute safety of a human body is ensured. And meanwhile, the design of sharing the pumping source and the heat dissipation system effectively reduces the hardware cost, so that the equipment can accurately meet the treatment requirements of multiple scenes such as medical cosmetology and surgical operations. And the operation efficiency and safety are remarkably improved while the treatment effect is ensured.

The utility model belongs to the technical field of explosion -proof centrifuge, and disclose a kind of explosion -proof flat plate hanging bag type centrifuge, including cylinder, the inside fixed setting of cylinder is provided with fixed column, the inside fixed setting of fixed column is provided with, the outside of the described is provided with power component, the power component includes motor fixedly set in bottom, the main shaft outside fixed setting of motor is provided with rotary disc, the top surface of rotary disc is provided with multiple arc grooves, arc groove's inside movably provided with movable shaft, the bottom surface fixed setting of movable shaft is provided with connecting shaft, and connecting shaft penetrates fixed column, by above -mentioned scheme, it has solved the problem that hanging bag is caused with centrifuge inside gap and leads to dynamic unbalance, improved the safety of centrifugal force when using, protected its internal components, also improved the efficiency of centrifugation, indirectly reduced economic loss.

This application provides a hybrid truck platooning control method based on multi-factor compensation, applicable to scenarios such as ports, logistics, and mines. The method first obtains the powertrain types and real-time loads of the leading and following trucks in the platoon. The leading truck continuously broadcasts information including its target acceleration, real-time acceleration, and load status via a vehicle-to-everything (V2X) network. Upon receiving this information, the following truck dynamically calculates a cooperative safe distance that fully considers both emergency braking risk and normal following oscillation risk, taking into account its own load and the powertrain types of both trucks. Then, based on the leading truck's target acceleration and considering powertrain differences and its own load, the system generates a target acceleration command for the following truck using a multi-factor compensation strategy. This application's method suppresses platooning oscillations and ensures a safe following distance by compensating for the response differences of different powertrains.

The invention provides a gas blasting device and a construction method.The gas blasting device comprises a liquid gas storage tank, a control system, a liquid injection machine and a fracturing pipe, the liquid gas storage tank is of a double-layer structure, and a liquid outlet is formed in the lower end of the liquid gas storage tank and connected with a liquid conveying pipe; the other end of the liquid conveying pipe is connected to a liquid injection machine, and the liquid injection machine is used for pressurizing the conveyed liquid gas, conveying the pressurized liquid gas into the fracturing pipe and injecting expansion cracking liquid into the fracturing pipe; the fracturing pipe is of a double-layer structure, a plurality of guide mechanisms are further arranged on the fracturing pipe, and the guide mechanisms are arranged at preset expansion cracking positions so as to guide the expansion direction of cracks; and the control system is used for controlling the actions of the liquid gas storage tank, the liquid injection machine and the fracturing pipe, so that the liquid gas is conducted in sequence for blasting. The novel requirements for higher safety, lower blasting vibration speed, lower carbon emission and intelligent control can be met.

The invention discloses an underground salt cavern compressed air energy storage bank monitoring system based on digital twinning, and relates to the technical field of intelligent monitoring. The method comprises the following steps: determining a key uncertainty parameter set influencing the multi-physics field behavior of the energy storage library, defining the prior probability distribution of the key uncertainty parameter set, sampling from the prior probability distribution by utilizing a Monte Carlo method, simulating the dynamic response of the energy storage library under a preset injection-production scheme by utilizing a multi-physics field coupling forward modeling model, and constructing an initial probabilistic digital twinborn body; collecting multivariate monitoring data of the energy storage library as observation evidence, carrying out weight updating and resampling on a model set in the initial probabilistic digital twinborn body by adopting a sequential Bayesian updating algorithm to obtain a posterior model set reflecting the current cognitive state, and carrying out parallel deduction on the state of the energy storage library in a specified time period in the future, a prediction result with a probability confidence interval is generated, and then the safe operation boundary and the injection-production strategy of the energy storage library are dynamically adjusted.