115results about How to "Avoid collusion" patented technology

A system for interactive gaming among a plurality of players includes a host computer system and a plurality of player terminals communicably coupled to the host computer system via a network. The plurality of player terminals are located at a plurality of licensed gaming locations. The plurality of player terminals are configured to engage the plurality of players in a common interactive game operated by the host computer system. The plurality of player terminals include means for dispensing player winnings from the player terminal.

The invention discloses a bilayer sliced high-efficiency block chain consensus mechanism and a working method thereof. The consensus mechanism is based on a bilayer gossip topology network, and comprises a full node, a local full node, a light node and a micro node, wherein the full node is in charge of node topology and slice maintenance and is elected and updated through a full node maintenancemechanism; and the local full node is elected and updated through a local full node maintenance mechanism and is in charge of transaction validation, transaction consensus, transaction storage and account synchronization. The invention also provides a working method for the consensus mechanism. A credible and incentive node joining and updating mechanism is provided, the stability, the bandwidth capability and the computing capability of the full node and the local full node are ensured, and the impacts on a transaction confirmation speed are reduced. The consensus mechanism proposed by the invention forms a divide-and-conquer distributed account system by means of intra-slice autonomy and inter-slice collaboration to ensure to consider decentralization, scalability and security.

The invention provides a distributed access control method for attribute-based encryption, and mainly aims to solve the problems of security and privacy protection of massive data in a cloud environment. A multi-authority ciphertext-policy attribute-based encryption (CP-ABE) mechanism is provided on the basis of CP-ABE. According to the mechanism, the workload of a single authority is shared with a plurality of authorities, and efficient outsourcing decryption, user revocation and dynamic join and exit supporting attribute authority (AA) can be realized. Through adoption of an access control mechanism provided by the invention, efficient, distributed, extensible and fine-granularity access control can be realized while the security and privacy of the massive data are protected.

The invention provides a vertical well separate layer fracturing interval optimization and construction parameter optimization designing method, and the method comprises the following steps of (1) establishing a porous flow-stress-fracture and damage coupling fracture initiation and dynamic expansion computing method; (2) primarily selecting the fractured interval according to the strata division and the reservoir physical property of the oil and gas reservoir; (3) establishing a reservoir hydrfracturing model, and taking the extension of hydraulic fracture in reservoir stratum as a criterion, and optimizing a first layer of fracture parameter; (4) adopting the first layer of fracture parameter, and calculating fracture shape of the upper part interval; (5) taking non-communication of the upper interval fracture and the lower interval fracture as a criteria, and calculating fracture shape of the upper part interval under different interlayer thickness to determine the interlayer thickness capable of blocking the communication of upper interval fracture and the lower interval fracture; (6) determining the final fracture interval, and optimizing the construction parameters of the upper interval. According to the method provided by the invention, the stress interference of the primary fracture initiation to secondary fracture initiation is taken into account, the communication of the hydraulic fractures of the upper interval and the lower interval is avoided, and the production capacity of each interval is greatly exerted.

An embodiment of the invention discloses an image annotation information processing method and device, a server and a system. Supervision and judgment processing logic of a plurality of nodes with different processing results can be provided. When image annotation information goes wrong, the results can be automatically returned, so that operators can perform review, modification and the like. Theprofessional ability of the operators can be improved by continuous auditing feedback interaction, image annotation efficiency is gradually improved, and training set picture annotation accuracy is greatly improved. Annotation quality can be effectively ensured, timely and effective information feedback is provided in workflow, and sample image annotation information operation efficiency is improved.

An on-line tournament management process includes a team substitution feature suitable when one tournament team loses a player to a disconnection or other unforeseen circumstance. The process may include maintaining roster information for first and second teams. Responsive to detecting a lost connection corresponding to a first player of the first team, performing substitution operations that may include: accessing skill level attributes of the first player, performing a search for a replacement player for replacing the first player in accordance with the skill level attributes and offering at least some eligible standby players, determined in accordance with criteria for matching the skill level attributes of the first player, a substitution spot corresponding to the open roster spot. After monitoring for an acceptance from an eligible player and not receiving an acceptance, additional eligible standby players may be offered the substitution spot. Additional eligible players may be identified by relaxing the degree of matching criteria.

The invention discloses a carpooling method and device. The carpooling method comprises: receiving route information sent by a driver client and riding information sent by a passenger client; generating carpooling information according to the route information matching the riding information best; and sending the carpooling information to the passenger client and the drive client. The route information contains a driving route, a driving terminal point, a meeting site, and corresponding meeting time; the riding information consists of a departure point, an expected destination, and time information, wherein the information is inputted by a passenger; and the carpooling information contains a contact way between a passenger and a driver, a meeting point matching the passenger, and a driving destination. According to the invention, the carpooling cost can be reduced; and accepting and support from the supervision layer can be obtained easily.

The invention discloses a cross-flow type layered drying machine, relates to an agricultural product processing machine and belongs to the technical field of agricultural product processing. The cross-flow type layered drying machine aims at solving the problems that when a drying machine is used for drying materials, uneven drying and damage of the cuticles of the materials are easy to occur, the cuticles of the materials are burst when drying temperature is high and the like. The materials enter into the drying machine are separated into material layers with the same thickness due to the fact that baffles with holes are mounted in an intersect-arrayed mode and an inclined mode, self-flow and slow rolling of the materials are achieved by using the self-weight of the materials when hot wind crosses the layered material layer transversely, the cross section position of a moisture-exhaust adjusting plate relative to a moisture-exhaust channel is controlled, drying speed of the materials is controlled, the burst of the material when in a drying process can be avoided. The cross-flow type layered drying machine is simple in structure, high in work efficiency and good in evenness of material drying and can achieve continuous drying operation of the materials. The cross-flow type layered drying machine is suitable for drying operation of granular agricultural products such as dates and walnuts.

The invention provides an enterprises fund risk mobile management and control system. The system comprises a trade server, an application terminal, at least one voucher collection device, an audit terminal, an authorization terminal and an operation terminal; the trade server, the application terminal, the audit terminal, the authorization terminal and the operation terminal are connected in an intranet mode or an extranet mode; the voucher collection devices are connected with the application terminal. The invention further provides an enterprises fund risk mobile management and control method. Accordingly, the approval processes in an enterprise achieve seamless connection with bank transfer, relevant passwords of UKEY are mastered by an entrepreneur, therefore, the enterprises fund transfer risk problem is fundamentally solved, a traditional risk control mode such as monitoring and tracing after the event is overturned, active defense on risks is achieved, the risks are effectively intervened, excluded and resolved, and the purpose of enterprises fund risk mobile management and control is achieved.

The invention provides a method for manufacturing a semiconductor device having epitaxial source-drain areas. Epitaxial layers with the same impurities as traps are grown by an epitaxial way at source-drain grooves and are used as protection layers, so that CMOS device collusion can be prevented and thus the HALO effect can be replaced completely or partially; and then epitaxy of the source-drain areas can be carried out. Therefore, the performance and stability of the semiconductor device can be enhanced.

The invention relates to an electroencephalogram acquisition wet electrode. The electroencephalogram acquisition wet electrode comprises a shell, a base, a spherical substrate and an electrode column,the shell is fixed to the upper end of the base, and the spherical substrate is installed on the junction of the shell and the base and can universally move on the junction; the electrode column is installed at the lower end of the spherical substrate and can move vertically relative to the spherical substrate. The structural form of the combination of axial retracting and drawing of the electrode column and slant center adjustment of the spherical substrate is adopted, the flexibility of the electrode is improved, and the degree of fitting of curvature of the electrode and a scalp contact isimproved; meanwhile, the electrode has the function that insulation is stopped after a conducting medium is injected, it is avoided that the conducting medium is communicated with the parts among multi-channel electrodes, signal interference is avoided, the function can be utilized to simultaneously and automatically inject the conducting medium to the multi-channel electrodes through a conducting medium supply source, and effective monitoring and acquisition of an electroencephalogram for a long time are achieved.

The invention provides a boost type DC-DC converter synchronous power tube current limiting circuit for solving the problem that the risk of damaging a main switching tube Q2, a synchronous power tube Q1 and output end equipment exists when surge current is started in an existing Boost circuit. The circuit can achieve the function of limiting the current of the synchronous power tube Q1. The whole boost type DC-DC converter synchronous power tube current limiting circuit is simple in structure, high in precision, fast in response and capable of improving the reliability of a system.

The invention discloses a shared content supervision method based on threshold key sharing and a block chain. The entity involved in the invention comprises a supervision department, a content provider, a block chain and a miner. The method specifically comprises the following steps: step 1, content permission snapshot; step 2, secret key distribution and recovery based on Shamir (t, n); step 3, content review based on transactions. according to the method and the system, the Shamir (t, n) threshold secret sharing is utilized, so that multiple parties can participate in content review together, the accuracy and fairness of content review executed by a supervision department are ensured, and collusion in the supervision department is effectively prevented. Besides, the whole review process is carried out in a block chain transaction mode, so that the defect of content supervision in a content sharing scheme based on a block chain at present is overcome, absolute disclosure and accuracy of the review records are ensured, and the public can conveniently audit and check the review records.

The invention relates to an electroencephalogram acquisition electrode based on an electric conduction liquid, belongs to the technical field of brain-computer interfaces, and solves the technical problems that in the prior art, in the use process, a wet electrode is time-consuming and tedious, the continuous use time is short, automatic injection of the electric conduction liquid of multi-channelelectrodes is difficultly achieved, the contact elasticity of the wet electrode and the scalp is poor, and the use comfort level is low. The electroencephalogram acquisition electrode based on the electric conduction liquid comprises a base, a shell, an electrode column, an inlet check valve, an outlet stop valve and a wire, wherein the inlet check valve and the outlet stop valve are arranged onthe two sides of the shell respectively, the electrode column is installed on the base, and a liquid storage cavity is defined by the base and the shell. The inlet check valve and the outlet stop valve can be constructed into a device for separating the electric conduction liquid in the liquid storage cavity from an external electric conduction liquid, and the situation that the electric conduction liquid is conductive to cause signal interference between the multi-channel electrodes can be prevented. By means of the electroencephalogram acquisition electrode, long-time effective acquisition and monitoring of electroencephalogram signals are achieved.

The invention discloses a fine-grained access control method and system based on double block chains, and the method comprises the steps: building an alliance chain, enabling a plurality of attribute authorization mechanisms to serve as a plurality of accounting nodes on the alliance chain, and carrying out the system initialization; enabling each attribute authorization mechanism to generate a respective public and private key pair and publish a respective public key to the alliance chain; enabling the data owner to symmetrically encrypt the shared data; enabling the data owner to encrypt the symmetric key and publishes a key ciphertext and metadata related to the shared data to an Ethernet, and taking the Ethernet as a data sharing charging platform; enabling a data accessor to acquire metadata published by the data owner in the Ethernet, pays by using the Ethernet, and sending a data access request to an attribute authorization mechanism corresponding to the attribute set of the to-be-shared data; enabling the data accessor to decrypt the key ciphertext by using the obtained decryption key, and decrypting and accessing the data ciphertext. The method has the advantages of higher safety, higher flexibility and higher operation efficiency.

The invention discloses a traceability management system for a wine industry supply chain based on a block chain, the traceability management system comprises a system framework and a system composition; the system is applied to wine process design, and the system framework comprises an Internet of Things + block chain, an interaction mechanism and participant roles. The system composition provides a decentralized supply chain management system based on an intelligent contract, which is established on the basis of a block chain technology. According to the invention, the block chain and the Internet of Things are innovatively applied to the red wine industry chain, and one batch of goods is mapped into the non-homogeneous pass, so that the traceability becomes accurate and efficient; eachmanufacturing link of the industrial chain is ingeniously projected into a transaction in a block chain, so that each link of the product must be guaranteed in quality and quantity, cannot be missing,and is traceable and tamper-proof; an external data storage excitation mechanism is designed, participants are excited to participate in network maintenance, and stable operation of the network is kept.

The invention discloses a cloud storage data integrity detection method and system based on a blockchain, and the method mainly employs a lattice signature algorithm to sign a file at a user side, caneffectively resist the threat of quantum computing, and guarantees that a signature is not cracked. According to the method, the Merkel tree is constructed, the signature value of the file is aggregated into the Merkel tree and combined with the cuckoo filter, on one hand, the requirement of dynamic operation of the file can be met, on the other hand, a complex signature verification process is simplified into a simple cuckoo filter query process, and the verification efficiency is remarkably improved. And meanwhile, the block chain network is introduced to replace the traditional TPA, so that the situation that the TPA colludes with the other party can be effectively avoided, the transparency of the information is improved, and the security of the scheme is further improved.

The invention discloses a charge pump structure, and belongs to the technical field of electronic circuits. The structure includes a reference ground potential generating unit, a level conversion unit, a non-overlapping clock generating unit, and a charge pump unit. The reference ground potential generating unit is used for generating a reference ground potential, wherein the power voltage is at ahigh level, and a ground voltage is at a low level. The level conversion unit is used for generating a first overlapping clock signal and a second overlapping clock signal, wherein a control signal is a clock control signal, a power voltage is at a high level, and a ground voltage is a reference ground potential. The non-overlapping clock signal generating unit is used for respectively convertingthe first overlapping clock signal and the second overlapping clock signal into a first non-overlapping clock signal and a second non-overlapping clock signal. A power voltage of the charge pump unit5 is at a high level, and a ground voltage is at a low level. The high level is boosted through pumping under the control of the first non-overlapping clock signal and the second non-overlapping clock signal so as to generate an output signal of the charge pump structure. The structure improves the charging efficiency of the charge pump and reduces the occupied area.

The invention relates to a well completion method with reservoir protection and packing functions. The well completion method primarily comprises the following steps that 1, well drilling is conducted, specifically, each reservoir is completely drilled through to the total depth or the reservoir is completely drilled through without reaching the total depth or the reservoir is incompletely drilled through; 2, well logging is conducted; 3, open hole perforation is conducted; 4, a barrier is built, specifically, the liquid barrier is built and designed in a well; 5, high-energy gas fracture is carried out, specifically, high-energy gas fracture is carried out on at least one reservoir one time, and artificial cracks are formed; 6, if each reservoir is completely drilled through without reaching the total depth or the reservoir is incompletely drilled through in the step 1, drilling continues till the total depth is reached; 7, well cementation is conducted, specifically, a cement ring is formed in the annular space between a casing pipe of each reservoir and the well; 8, casing pipe perforation is conducted, specifically, a duct between each reservoir and a shaft is built; and 9, the reservoirs are put into production or injection. The well completion method is short in construction period, small in number of procedures and low in cost. By means of the well completion method, the absorption and seepage capacities of the reservoirs can be greatly improved, and great economic benefits are achieved.

The invention belongs to the technical field of spray dryers, and especially relates to a double-flap-valve discharging structure for cyclone of a spray dryer. The double-flap-valve discharging structure for the cyclone of the spray dryer comprises an upper end head, a first barrel body, a second barrel body and a third barrel body which are sequentially arranged from top to bottom, wherein the upper end head and the first barrel body are fixedly connected through a sealing connecting piece, the first barrel body and the second barrel body are fixedly connected through a sealing connecting piece, and the first barrel body and the third barrel body are fixedly connected through a sealing connecting piece; an upper conical hopper is arranged in the first barrel body; a lower conical hopper is arranged in the third barrel body; and the upper end head, the upper conical hopper, the first barrel body, the second barrel body, the lower conical hopper and the third barrel body are sequentially communicated. The discharging structure further comprises an upper driving mechanism, an upper valve plate, a lower driving mechanism and a lower valve plate, wherein the upper driving mechanism isused for driving the upper valve plate to move close to or away from the bottom end of the upper conical hopper; a valve plate sealing ring is arranged between the upper valve plate and the bottom endof the upper conical hopper; the lower driving mechanism is used for driving the lower valve plate to move close to or away from the bottom end of the lower conical hopper; and a valve plate sealingring is also arranged between the lower valve plate and the bottom end of the lower conical hopper.

The invention discloses a block chain-based criminal case evidence management method and device and a medium. The method comprises the steps of establishing a block chain for storing evidence information, service nodes in the block chain comprising a public security bureau, a checkout center and a court, and a plurality of case filing nodes for consensus existing on the service nodes; receiving case filing information of a case filing node, and marking the case filing node as a first node, the case filing information comprising criminal case evidences; determining the case filing nodes participating in consensus according to the case filing information; and after consensus is reached, packaging the case evidences into blocks and writing the blocks into the block chain. A new consensus mechanism is used. A plurality of case filing nodes used for consensus are set for each public security law mechanism. The corresponding case filing nodes are selected according to the correlation of cases. The public and transparent characteristics of the block chain are utilized, so that personnel of the public security law mechanisms can be prevented from being suspected, case related personnel canbe prevented from being hooked with each other, and the credibility of chained evidences is effectively improved.

The invention discloses a multi-center revocable key strategy attribute-based encryption method and device, and a storage medium, and the method comprises the steps: each attribute authorization mechanism generating a public and private key pair of the attribute authorization mechanism, and the public and private key pair comprising a public key, a private key and a user key revocation parameter; the encipher inputting a plaintext message, an attribute set corresponding to the plaintext message, a system global parameter and a public key of an attribute authorization mechanism corresponding to the attribute set to obtain a ciphertext message; each attribute authorization mechanism updating a user key revocation parameter in the public and private key pair and obtaining a partial decryption key of the decryptor to form a decryption key of the decryptor; and the decryptor inputting the global ID of the decryptor, the decryption key, the access strategy and the public key and ciphertext message of the attribute authorization mechanism of which the attribute set satisfies the access strategy to obtain a plaintext message. According to the method and the device, interaction between mechanisms is not needed during key management, and participation of other users is not needed, so that the security is improved, and the flexibility is also improved.

The invention relates to an equal safety electric business method, which can solve the problem that worse equality caused by the third part of electric business cahoots to cheat. The invention can avoid the third part, to directly process the electric business between the buyer and the seller when there is not safe network, that the buyer and the seller use code algorism especially the synchronous effective sign algorism to process the trade information as electric order, electric check, etc, and transmit the result to opposite part via network; and they both keep the trade evidence, to realize the equal and safe business of digital goods and solid goods. The invention has simple process, high equality, while buyer can obtain digital goods when the electric check becomes effective, and obtain solid goods, when the seller shows key evidence that the electric check is effective.

The invention discloses an electric submersible pump discharging and mining device adapted to coiled tubing completion. The electric submersible pump discharging and mining device comprises an electric cable hanging device, an overcurrent pipe nipple, a coiled tubing, a coiled tubing connector, a conversion pipe nipple, a downhole motor and a downhole pump group which are connected in sequence from top to bottom. The upper end of the overcurrent pipe nipple is connected with a hanging device delivering joint. The coiled tubing is hung through a coiled tubing hanging device. An electric cable hung by the electric cable hanging device extends into the coiled tubing, penetrates through an electric cable sealing joint on the conversion pipe nipple, and then arranged and matched with the downhole motor and the downhole pump group. According to the electric submersible pump discharging and mining device adapted to coiled tubing completion, electricity supplying to a downhole electric submersible pump system is achieved by adopting the fact that the electric cable penetrates through the interior of the coiled tubing, and meanwhile, friction damage caused by the situation that the electriccable is externally arranged on the tubing can be avoided; and safe tripping in of the downhole electric submersible pump system is achieved through a coiled tubing working machine, and then non-wellkilling operation is further achieved.

The invention discloses a piece of outer cleaning equipment for packages. The equipment relates to the technical field of air showers and comprises a cleaning room, an air shower, a conveying machine, a gas suction device and a gas blowing device. The equipment is characterized in that an upper dust sucking nozzle and a lower dust ducking nozzle are disposed in the cleaning room; the dust sucking nozzle is close to the surface of a moving cargo and is connected to the gas suction device; an entrance door connected to the cleaning room and an exit door connected to a clean room are disposed in the air shower; multiple gas spray nozzles and multiple gas outlets are formed in the side walls of the air shower, the gas spray nozzles are connected to the gas blowing device which blows gas into the air shower, and the gas outlets are connected to the gas suction device which exhausts the gas from the air shower; the conveying device passes through the cleaning room and the air shower; a sensor used for position inspection is disposed on the conveying machine, and the sensor controls start and stop of the conveying machine as well as opening and closing of the entrance door and the exit door; and the cargo passing the equipment can better satisfy requirements of the clean room, and the environment inside the clean room is prevented from being polluted by the cargo.

The invention relates to a monitoring system applicable to remote prison visitation. The monitoring system comprises a server, a storage device and a monitoring console ; the server is respectively connected with the storage device and the monitoring console through a communication network; the server is also connected with a visitor terminal and a prisoner terminal through the communication network; the server comprises an information comparison and matching module, an audio and video transmission module, a voiceprint recognition module, a face recognition module, a background blurring module and an abnormal condition control module; the storage device comprises an audio and video storage device, and a visitor and prisoner information storage device; the monitoring console comprises a display screen, a monitoring host, a headset, a mouse, a keyboard and a microphone; and the monitoring host is respectively connected with the display screen, the headset, the mouse, the keyboard and the microphone through cables. The monitoring system applicable to remote prison visitation ensures correct matching of the visitor and the prisoner through the voiceprint recognition module and the face voiceprint recognition module, and avoids collusion and information leakage and ensures remote visitation security through the background blurring module and real-time monitoring of the monitoring console.

The invention discloses a single-air-cylinder switchover type air intake valve which is simple in structure, good in air impermeability, low in cost and capable of achieving a quick, flexible and reliable air channel switchover function through a single peripheral air cylinder. The single-air-cylinder switchover type air intake valve comprises a valve body provided with an inner cavity, a valve sleeve, a valve rod and a valve plate, wherein the valve sleeve, the valve rod and the valve plate are arranged in the inner cavity of the valve body. The valve body comprises an air inlet and two air outlets, wherein the air inlet and the air outlets are communicated with the inner cavity. The valve sleeve is tightly matched with the inner wall of the valve body, a plurality of through holes for enabling the inner cavity of the valve body and one air outlet to be communicated are formed in the valve sleeve, the valve plate is connected to the head portion of the valve rod, and the rail portion of the valve rod is connected with the peripheral air cylinder. When the peripheral air cylinder is pushed into or pulled back, the valve plate blocks an air channel between the air inlet and one air outlet and enables the air inlet and the other air outlet to be communicated. The single-air-cylinder switchover type air intake valve can be applied to the field of air compression.

The invention belongs to the technical field of electrostatic protection, and provides a low-voltage one-way / two-way SCR device for ESD protection. Compared with a traditional electrostatic protection device, the novel structural design is adopted, so that an auxiliary trigger access (forward / reverse) of the device comprises three N + / P-WELL diodes, the direct current blocking capacity of the device is enhanced, and therefore lower leakage current, lower static power consumption and more stable parasitic capacitance value are obtained compared with the traditional electrostatic protection device; a better electrostatic protection effect is obtained; compared with an existing low-power-consumption bidirectional SCR device for ESD protection, the low-power-consumption bidirectional SCR device has the advantages that the potential PNPN series connection phenomenon in the device structure can be avoided by adopting the novel structural design, so that the leakage current abrupt increase phenomenon cannot occur when the working voltage of the low-voltage bidirectional SCR device is 1.5 V; in other words, the device can still achieve effective and low-power-consumption ESD protection at the working voltage of 1.5 V or above and 1.8 V or below.