37results about How to "High security mechanism" patented technology

The invention relates to a shared-memory-based method for conducting communication among multiple processes. According to the method, a shared memory is managed in a circular queue mode, the shared memory is used for reading and writing conducted by the multiple processes in the circular queue mode, reading or writing is conducted by making a block as a unit, and the size of each block is controlled by a user; the shared memory is shared by the multiple processes, and the multiple processes comprise read-only processes and write-only processes; the multiple processes can conduct reading operation on the shared memory simultaneously, only one process can conduct writing operation on the shared memory, reading does not conflict with writing, and reading and writing can be conducted simultaneously. By means of the method, the number of times of copying conducted through a kernel when the processes exchange information is reduced greatly, throughput of a background system is improved, the overhead of the system is reduced, and performance of the system is effectively enhanced.

The invention provides a hospital information supervision platform and method. The hospital information supervision platform comprises a distributed block chain network constructed by adopting a plurality of data source parties and one or more data application parties as supervision nodes and further comprises a block chain key generation module, a distributed storage module and a sensing prompting module. The block chain key generation module adopts the block chain technology for enabling medical key information of the supervision nodes in the distributed block chain network to generate corresponding block chain keys through an encryption algorithm; the distributed storage module stores the block chain keys into all the supervision nodes of the distributed block chain network; the supervision nodes are communicated in the distributed block chain network; if medical key information of any supervision node is modified, the corresponding block chain key changes, and the other supervision nodes can sense the changes and give a prompt. The platform achieves multi-point self-supervision and intelligent prompting, the medical key information safety management cost is lowered, and the medical key information of a hospital can be prevented from being modified improperly.

The method includes steps: setting up transformation algorithm for cipher key data in advance; generating original cipher key data by cipher key generator, random sequence generator generates several pieces of random numbers correlated to the original cipher key data at same time; carrying out transformation operation for original cipher key data and correlated several pieces of random numbers by using transformation algorithm for cipher key data setup before; storing up transformed cipher key data and each random number correlated to original cipher key data in storage media independent to each other. Comparing with prior art, the invention lowers complexity of cipher key storage step in cipher key management procedure, and raises security mechanism in storing cipher key.

The invention provides a pre-sharing-based secure data transmission method for an electric load management system, which is significant to a power load management system to resist various security threats in wireless communication environments and open Internet environments. The confidentiality, integrity and availability of transmission data of the system can be ensured through perfection of the transmission protocol identity authentication and the integrity checking mechanism of the power load management system, and encryption of important control instructions. The method has significant meaning and demonstration effects to the formulation of secure data transmission schemes for other power application systems.

The invention discloses a cloud platform access method and a cloud platform access device, wherein the cloud platform access method comprises the following steps that under the condition of requesting to access a cloud platform, access marks are generated according to the request parameters of users; the access marks are sent to the cloud platform, and are verified according to the pre-stored user information corresponding to each user; under the condition that the access marks pass the verification, the users are allowed to access the cloud platform. The cloud platform access method and the cloud platform access device have the advantages that access marks are generated according to the request parameters of the users, in addition, the access marks are verified through the pre-stored user information, and the effect of allowing the users to access the cloud platform only under the condition that the access marks pass the verification is ensured, so the safety mechanism of the cloud platform is effectively improved, the malignant access of illegal users to the cloud platform is avoided, and the resource waste of the cloud platform is reduced.

The invention relates to a system for measuring and managing electric energy used for agricultural irrigation and drainage, which comprises a prepaid card electricity meter, a meter reader, a card reader, a provincially unified key system, an electricity selling system and a non-contact intelligent CPU card serving as a storage medium. The same type of equipment adopts a unified technical specification and communication interface to ensure inter-equipment communication and realize the function of the system. A PSAM module with a storage key is arranged in the unified prepaid card electricity meter of an electricity selling terminal; and keys in the PSAM module and the intelligent CPU card are used for performing security authentication to realize the high-level management of recharging and avoid the possibility of selling the electricity privately. The unified key system strengthens the security system of the whole system and improves the technology level of preventing electricity stealing. The unified electricity selling system and WEB data representation and data mining technology improve the accuracy, the consistency and the generality of data and provide a reliable data basis for leaders from provincial and municipal top management departments and the unit.

A ping pong table with folding protection mechanism is disclosed. At least a pair of folding protection mechanisms is installed underneath the table, one on each side. Each folding protection mechanism is composed of at least one guide roller, one steel cable, and one pneumatic cylinder. The two halves of the ping pong table are folded and supported by an under carriage that is pivotally attached onto the underside of the table. The pneumatic cylinder on each side has one end connected to a cross bar under the table, and the other end connected to a steel cable, which then, through guide rollers, is further connected to the bottom beam of the undercarriage. This folding protection mechanism makes the folding/unfolding of the ping pong table easier and more user-friendly, so even one person is able to handle the table set up without difficulty.

The invention relates to blockchain technologies such as the Bitcoin blockchain. The invention uses a novel technique to decompose the functionality of a blockchain transaction script into several chunks or functional parts, and to use the output of a chunk as the input of the next chunk. Advantageously, this allows the blockchain to be used for ever complex tasks and computations while minimisingscript size, and also provides a novel architecture for the distributed execution of computational processes. The invention comprises a method of using a plurality of blockchain transactions to execute a computer-implemented task, the method comprising the steps: using an unlocking script (ULS1) in a blockchain transaction (Tx2) to present at least one data item to a locking script (LS1) of another transaction (Tx1) so as to provide a result on a stack; generating a further unlocking script (ULS2) which comprises the result provided on the stack; presenting the further unlocking script (ULS2)to a further locking script (LS2) such that the result from the stack is provided as input to the further locking script.

The invention belongs to the technical field of wireless sensor security mechanisms, and particularly relates to a big data identification and intelligent analysis method for a wireless sensor networkbased on an energy-aware routing protocol. The invention also provides a big data identification and intelligent analysis system for the wireless sensor network based on the energy-aware routing protocol at the same time. The method includes the followings steps that: a source node encrypts and broadcasts a route request packet, and an intermediate node encrypts and forwards the request packet and simultaneously revokes a route response packet until an available route is established between the source node and a destination node. The scheme of the invention solves the problem that the security is poor because some existing routing protocols in the wireless sensor network do not highly consider the security requirements in the prior art, and has the beneficial technical effects of high security performance, good security, high reliability, wide application range and low energy consumption.

The invention discloses a redundant hot standby platform comprising a master system, a backup system and an arbitration module, wherein the arbitration module performs bidirectional communication with a motherboard of the master system, the motherboard of the backup system and an output module of the redundant hot standby platform, the platform imports a third party synchronous management functional module to add an input and output data comparison function, a period synchronization function, a following function, an automatic recovery function after downtime for the redundant hot standby platform, and the availability of the redundant hot standby platform is effectively enhanced on the premise of ensuring the security.

The invention discloses an anti-falling shutter wheel and a production process thereof, and relates to the technical field of shutter wheels, the anti-falling shutter wheel comprises a main body, a protective device is arranged on the outer wall of the main body, a chassis is arranged on one side of the main body, an anti-falling device penetrates through the chassis, a rotating shaft is arranged on one side of the chassis, and a rotating shaft is arranged on the other side of the rotating shaft; an auxiliary locking device is arranged on one side of the rotating shaft, and a mounting groove is formed in one side of the auxiliary locking device. Under the combined action of a bearing, a bearing hole, a limiting cylinder, a tray and a fixed connecting rod, the flap wheel can be prevented from falling off from the device due to overlarge centrifugal force during rotation, the flap wheel can be firmly fixed to the device, hidden dangers are reduced, and the service life of the flap wheel is prolonged. Under the combined action of the connecting shaft, the taper bearing, the locking nut, the sheath, the repairable material and the four-side positioning bolts, one side of the flap wheel can be firmly locked, so that internal parts of the flap wheel are not easy to loosen, and the anti-falling function of the flap wheel is further improved.

The invention discloses a food packaging preservative film guiding and covering device, and relates to the technical field of preservative films, the food packaging preservative film guiding and covering device comprises a main body, a cutting plate is arranged at the upper end of the main body, a temperature control mechanism is arranged at the rear end of the cutting plate, an anti-abrasion mechanism is arranged at the lower end of the main body, and a material cleaning mechanism is arranged on one side of the main body. And a storage barrel is arranged at the lower end of the material cleaning mechanism. Under the combined action of a heat conduction pipe, a valve, a condensation pipe, a heater and a constant-temperature block, the situation that covering of a preservative film is blocked due to the influence of the external temperature in the covering process can be avoided, the temperature in the device can be controlled within a safe range, the preservative film is not prone to deformation, and the service life of the preservative film is prolonged. Under the combined action of the storage box, the screen, the feeding pipe, the pressure stabilizing roller and the blast pipe, dust deposited on the surface of the preservative film can be effectively recycled and removed, so that the preservative film does not bring the dust into food, and meanwhile, covering blockage caused by dust accumulation can be prevented.

The invention discloses a thermoplastic elastomer material and a preparation method thereof, and relates to the technical field of thermoplastic elastomers, the thermoplastic elastomer material comprises a main body, the outer surface of the upper end of the main body is provided with a flame retardant coating, the lower end of the main body is provided with an anti-static mechanism, and the lower end of the anti-static mechanism is provided with a protection device. Under the combined action of the colloid, the liquid flame retardant, the solid flame retardant, the accelerant and the styrene coating, the thermoplastic elastomer can have good flame retardance and elasticity, and the liquid flame retardant and the solid flame retardant are added to the surface of the elastomer material, so that the thermoplastic elastomer is not prone to spontaneous combustion; under the combined action of the carbon black coating, the chopped conductive fiber coating, the conductive mica powder coating, the thin film and the polyurethane coating, the antistatic capacity of the elastomer material can be improved, the arranged chopped conductive fiber coating contains carbon fibers and metal fibers, and the carbon fibers and the metal fibers have very low body resistance and are generally presented in a network line shape, so that the antistatic performance of the elastomer material is improved. Therefore, the current is not easy to pass through the elastomer material.

The invention provides a high-dimension secure arithmetic coding method. Through adoption of the method, compression and encryption can be conducted rapidly, and a highly secure mechanism is providedwhile the original information compression rate is kept. The original arithmetic coding method depends on one-dimension line segment shrinkage process. In the method, the coding process is expanded toan N-dimension space. A non-linear system password algorithm is introduced in a higher dimension, so that arithmetic coding maintains high compression rate, further, an extra information secure mechanism is offered. The method has the characteristics of good encryption effect, high efficiency and high compressibility, and can be applied to real-time information transmission.