14results about How to "Avoid security breaches" patented technology

The invention belongs to the technical field of distributed account books, and particularly relates to a performance optimization method of a distributed account book system, which comprises the following steps: step 1, node architecture optimization: improving the processing capacity, memory and storage of nodes, reasonably configuring the load of the nodes, and avoiding overload of some nodes; and step 2, consensus algorithm improvement: the workload proof is converted to the right proof or other more efficient consensus mechanism, and the communication complexity and the calculation amount in the consensus process are reduced. According to the distributed account book system, the performance, the efficiency and the safety of the distributed account book system can be comprehensively improved by improving the node performance, improving the consensus algorithm, optimizing the transaction processing and the network layer, saving the storage space, improving the intelligent contract, simplifying the protocol layer and considering the safety and the performance balance at the same time, and the more efficient and reliable distributed account book system is provided for users.

The application discloses an MCU controller violence cracking prevention system and method, comprising: a storage module which stores and updates a check failure count value in the non-volatile memory of the MCU; a response control module which returns a diagnosis negative feedback and triggers a delay timer to start according to the count value; a delay management module which sets a delay waiting time when the count value reaches a preset upper limit, and allows the request again after the timing ends; and a restart processing module which restarts the delay timer when the MCU is powered on or restarted and the count value is over the standard. The application solves the problem that the MCU is cracked by violence because the failure count is reset to zero due to the restart or session switching, and effectively improves the access security through the non-volatile storage and delay mechanism.

The utility model relates to the technical field of flat coal machine, specifically disclose a kind of flat coal machine hopper positioner, comprising: flat coal machine main body, flat coal machine main body both sides are equipped with pitch frame, pitch frame is fixedly connected with mounting bracket, mounting bracket is fixedly connected with collision detection component, collision detection component detects the safety distance of flat coal machine and carriage, pitch frame other end is equipped with limiting component, limiting component is positioned to the stroke of flat coal machine main body up and down pitch, by setting collision detection component, real-time accurate monitoring hopper and carriage distance, trigger fast evasion collision risk after, by setting limiting component, strictly limit pitch overtravel, completely solve the security loophole of traditional manual operation, substantially reduce the accident rate of equipment collision damage, bottom contact etc., overall mutual cooperation adapts different carriage and coal quantity, and safety, adaptability and economy are considered, the protection performance and practicality of core component are prominent.

The invention discloses a system for short-circuit safety protection of an elevator shaft safety door. The system comprises a main control board, a first detection circuit, a second detection circuit and a protection device. The first detection circuit is electrically connected with the main control board, and the first detection circuit is used for detecting the on-off state of an elevator safety circuit comprising a first well safety door switch; the second detection circuit is electrically connected with the main control board, the second detection circuit is independent of the elevator safety loop, the second detection circuit comprises a second shaft safety door switch, and the second detection circuit is used for detecting the opening or closing state of a shaft safety door; the protection device is electrically connected with the main control board; the main control board is used for controlling the protection device to be started when the first detection circuit detects that the elevator safety circuit is in a connected state and the second detection circuit detects that the well safety door is in an open state. The safety of elevator operation can be remarkably improved, and the life safety of personnel is effectively guaranteed.

The present invention discloses a high-precision face recognition system for face recognition access control, and relates to the technical field of face recognition access control. The high-precision face recognition system for face recognition access control includes a recognition access control self-check module, a matching information acquisition module, an identity recognition module, a face recognition module and a statistical module. Through double verification (time period + face recognition), it is ensured that only the right people visit a specific area at the right time, which greatly improves the security. The self-check module ensures the stable operation of the system. Once a problem is found, it can respond quickly to avoid security loopholes. The statistical module provides detailed access records, which is convenient for post-audit and behavior analysis, and helps to improve the overall supervision ability.

The application relates to the technical field of traffic control and discloses an intelligent road recognition system based on deep learning, wherein an image acquisition device acquires a road surface image sequence and inputs the road surface image sequence into a double-branch decoupling neural network of a roadside edge computing node; a structural feature extraction path extracts structural feature vectors of road boundaries and lane markings through a spatial attention mechanism; an abnormal feature extraction path extracts abnormal feature vectors of crack, pit and water accumulation areas through a frequency domain filtering convolution layer; the edge computing node compares the abnormal feature vectors with a preset road damage level mapping table to generate road damage state features; and a roadside traffic control signal machine determines a speed limit threshold according to the state features and generates a speed limit control signal. The application completes recognition and control locally at the roadside, eliminates delay caused by back-and-forth transmission between the roadside and the cloud, realizes instant synchronization of damage recognition and speed limit instructions, and separates structural and defect feature expressions through decoupling processing.

The invention discloses a valve mechanism in-place detection system for an open switch cabinet, and relates to the technical field of switch cabinet valves, the valve mechanism in-place detection system comprises a substrate, the bottom end of the substrate is connected with a mounting track, and the left and right sides of the substrate are both provided with guide rods; a valve mechanism is jointly arranged on the outer side of the upper contact and the outer side of the lower contact, a connecting rod is arranged on the rear side of the base plate, an encoder shaft is movably connected to the outer surface of the connecting rod, an encoder is connected to the other end of the encoder shaft, and a PLC control module is connected to the outer surface of the encoder through an electric wire. Hall sensors are arranged on the outer sides of the two guide rods, and magnetic marks are preset on the outer surfaces of the two guide rods. A series of structures are arranged, multi-sensor redundancy check is utilized, the false alarm rate is reduced, high precision and reliability are improved, the self-adaptive algorithm is compatible with different conditions, manual intervention is reduced, meanwhile, misoperation is effectively prevented through a real-time interlocking mechanism, and electric power safety specifications are met.

The invention discloses an intelligent calculation method and system for available power transmission capacity of a power transmission section in multiple operation modes. The method comprises the steps that S1, multiple sets of power grid operation mode data are selected, and multiple sets of power grid operation basic data are acquired; s2, defining transmission section parameters; s3, setting a section transmission power target value based on the previous transmission section transmission power value and the transmission section parameters; s4, searching a sending-end generator and a receiving-end generator, and adjusting the output of the generators until a section transmission power target value is reached; determining a corresponding power grid operation mode; s5, checking the determined operation mode of the power grid; s6, when the checking result is passed, returning to S3, and resetting the section transmission power target value; s7, when the checking result is not passed, determining the transmission power value of the previous transmission section as the limit transmission power; and S8, executing the steps S3 to S7 on the multiple sets of power grid operation basic data, and taking the transmission power value of the minimum power transmission section as the allowable power transmission capacity of the power transmission section in the multiple operation modes.

The present invention relates to the technical field of electric power data collection with encryption function, and discloses an electric power data collection terminal and method with encryption function. By combining environmental data and equipment status, this encryption process enhances the security and adaptability of data encryption. The input of environmental and equipment data ensures that the encryption results are different each time, avoiding the security risks brought by static data sources. The seed generation formula reasonably combines these data to ensure that the seeds have sufficient randomness and reduce the risk of brute force cracking. The key generation strategy generates a unique key through the seed, which improves the system's anti-attack ability. The key matrix and random number generation strategy improve the unpredictability of the encryption algorithm. Dynamically update the encryption matrix to prevent it from being cracked during long-term use. The entire process ensures comprehensive protection of data during collection, encryption and transmission, and effectively prevents data from being tampered with or stolen.

The present invention discloses a blockchain-based electronic signature security issuance processing system and method, which relates to the technical field of blockchain. The private key is divided into several shared parts by using blockchain technology through a key processing module. This division method ensures that the private key will not be obtained by a single entity, thereby effectively reducing the risk of private key leakage. The signed document and its signature information are stored on the blockchain, and the integrity and reliability of the signature data are further guaranteed by the immutability and transparency of the blockchain. The authorization threshold module constructs a balanced evaluation prediction model through a convolutional neural network, combines the performance factor Nnyz and the security requirement factor Qxyz, and intelligently adjusts the threshold value. This method can effectively balance the security and performance of the system, and further avoids the performance bottleneck caused by an excessively high threshold and the security risks of an excessively low threshold; the electronic signature verification module calculates the first checksum Xyh1 and the second checksum Xyh2 before sending and receiving the signed document.

The application discloses a face recognition database image automatic updating method and system in security scenarios, and relates to the technical field of face recognition, comprising the following steps: collecting at least two kinds of identity certificate information for weighted fusion verification; continuously collecting multiple frames of face images at a variable frame rate after verification; performing multi-dimensional quality assessment on each frame of image in terms of definition, brightness, attitude angle and shielding; selecting an optimal candidate set with qualified quality and complementary attitude; calculating the marginal incremental contribution of the candidate set to determine whether the updating condition is met; performing direct addition or elimination and replacement based on multi-dimensional utility score according to the sub-database capacity; entering the verification observation period after updating, and automatically rolling back when the recognition fails and exceeds the threshold value. The application adopts the above method and system, ensures safety through multi-source fusion verification, improves the database quality through complementary attitude and incremental contribution evaluation, realizes dynamic evolution through multi-dimensional utility score, and guarantees robustness through the rollback mechanism.

This application provides a method, apparatus, and device for managing instant messaging message keys based on RedisHBase hierarchical caching and blocking queues. The server generates message keys and performs hierarchical storage processing based on a remote dictionary service protocol and a distributed database protocol to implement hierarchical key storage including hot and cold layers. The server performs derivation operations based on the recipient's user identifier to generate a user-derived key, and uses the user-derived key to match the message key and performs double-layer encryption transmission processing to obtain a key-type message including the encrypted transmission key, which is then sent to the client. The client parses the transmission key from the received key-type message and performs priority scheduling and session-level blocking determination with the encrypted message to generate an undecrypted message blocking queue.

The present application discloses a method, system, device and storage medium for encrypting authentication data based on network security, and relates to the field of data encryption technology. The method includes: in response to an authentication request initiated by a user, initializing several optional data transmission links according to the server to be accessed corresponding to the authentication request; determining the link security score corresponding to each optional data transmission link according to the credibility of the transmission node in each optional data transmission link; determining the target data transmission link based on each link security score, and determining the current key distribution node in the preset key distribution center network according to the target data transmission link; obtaining the encryption algorithm corresponding to the current key distribution node, and encrypting the authentication data corresponding to the authentication request according to the encryption algorithm. The present application realizes the encryption of authentication data through the dynamic change of the data transmission link and the encryption algorithm. Compared with the existing method, it avoids the security loopholes caused by the fixed encryption algorithm, thereby reducing the risk of authentication data leakage.

The invention belongs to the field of memory control, and provides a memory control method and a storage device.The method comprises the steps that in response to a write instruction, security sensitive data in a memory block area and metadata containing a version number and a write count value are updated and replayed; copying the updated data and metadata into version entry data, and writing the version entry data into a backup area; receiving a rollback instruction carrying a target version number and a newly written count value, and querying whether corresponding version entry data exists in the backup area; if yes, judging whether the new write count value is greater than or equal to the write count value in the hit version entry data and the current write count value of the replay protection memory block area; and if the judgment is passed, writing the security sensitive data in the hit version entry data back to the replay protection memory block area, and updating the current write count value into a new write count value. According to the method and the device, the controllable safe rollback of the data version can be realized on the premise of not destroying the security mechanism of the replay protection memory block area.