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72results about How to "Loss will not cause" patented technology

Automatic production system for metal gravity casting

The invention discloses an automatic production system for metal gravity casting. The system comprises a heat-preserving furnace, a sliding table, a plurality of gravity casting machines, a robot, a liquid taking arm and a control system, wherein the heat-preserving furnace is used for containing molten metal and keeping the temperature of the molten metal within a certain range; the sliding table is arranged beside the heat-preserving furnace and used for bearing the robot; the gravity casting machines are arranged on the two sides of the sliding table; the robot is arranged on the sliding table and can make reciprocating movement on the sliding table; the liquid taking arm is connected with the robot and provided with a liquid taking spoon and a servo driving system for driving the liquid taking spoon to rotate; the control system is used for controlling the liquid taking arm to take liquid from the heat-preserving furnace when the robot slides to the heat-preserving furnace and controlling the robot to move to the position beside the pre-determined gravity casting machine after the liquid is taken, then, the liquid taking arm is controlled to pour the molten metal to the pre-determined gravity casting machine, and next, the robot is controlled to slide to the initial position after the molten metal is poured by the liquid taking arm. According to the production system, the production efficiency, the safety and the percent of pass of products can be improved.
Owner:广东意戈力智能装备有限公司

Circuit and method for ensuring normal operation of light source modules

InactiveCN102695317AWork lessSolve technical problems with a relatively narrow scope of applicationElectric light circuit arrangementEnergy saving control techniquesElectricityElectronics
The present invention provides a circuit and a method for ensuring normal operation of light source modules, relating to the technical field of electronics and solving a technical problem of narrow application scope in the prior art. The circuit for ensuring the normal operation of the light source modules comprises a control module and switching circuits. The switching circuits are connected between an electricity input end and an electricity output end of one light source module of at least two light source modules which are in series with each other. When the switching circuits are off, the light source modules operate normally; when the switching circuits are on, the light source modules are shorted out by the switching circuits. The control module, when a fault of one of the light source modules occurs, is used to control the switching circuit that is connected between the electricity input end and the electricity output end of the light source module having a fault, and to switch the switching circuit from off to on status. The circuit and the method are applied to the ensuring of the normal operation of light source modules which are formed by a plurality of modules mutually connected in series.
Owner:HISENSE VISUAL TECH CO LTD

Method for establishing and managing electronic diary by using WeChat platform

The invention discloses a method for establishing and managing an electronic diary by using a WeChat platform. The method comprises the following steps of paying attention to a public account having an electronic diary function by utilizing WeChat; sending diary information to the public account; saving the diary information to a cloud storage server and enabling the diary information to be associated with the identification of a user; storing the diary information as a diary of the user; obtaining position data of the user through an API (Application Program Interface) at the same time if the public account is authorized to read position information by the user, and storing the position data together with the diary information; enabling the user to check / download the diary at any time through a menu of the public account, and also enabling the diary to be directly published through a public account operator. The method for establishing and managing the electronic diary by using the WeChat platform, disclosed by the invention, is based on the WeChat platform, installation of software is not needed, the flow is saved, the use is easy, the privacy safety is ensured, the data are safer as cloud storage is adopted, and the user experience is good; in addition, the method is also applicable to QQ and other social platforms having public accounts and APIs, and the method comprises the steps of paying attention to QQ having an electronic diary function or the public accounts of other social software and then carrying out the same operation.
Owner:北京汇康益生科技有限公司 +1

System protecting method based on data security

The invention discloses a system protecting method based on data security, which relates to the field of program control of computers. The system protecting method includes steps: analyzing effective data of a partition of a system, building a data flow of effective data bits of a sector, dividing the sector in the partition of the hard disk system into a plurality of sector blocks, and building a sector block protecting state data flow according to the data flow of the effective data bits of the sector; intersecting write operation of the partition of the system, inquiring the sector block protecting state data flow, copying original data into a free block if the current sector block to be written is a protected block, recording copying information, marking the free block as a buffering block, marking the sector block to be written as a copied block and then completing write operation; and finding back a file before the system is restored when the system is severely damaged and cannot be guided and the partition of the system has important data files, and directly restoring the system if the system is not severely damaged and the partition of the system does not have the important data files. By the aid of the system protecting method, security of data of users can be guaranteed, loss of the data of the users can be avoided, restoring speed is fast, and influence on writing and reading of a hard disk is low.
Owner:WUHAN OPENKER COMPUTING

Threshold private key generation method, transaction method and relevant device

The invention discloses a threshold private key generation method, a transaction method based on a threshold signature and a relevant device. According to the threshold private key generation method,a first terminal system generates an initial private key and generates three corresponding sub-private keys according to a (2,3) threshold scheme, wherein the first terminal system and a second terminal system can arbitrarily save one sub-private key and can send another sub-private key to a central bank system. Since all the sub-private keys are generated according to the threshold scheme, signing cannot be completed unless a joint signature of two sub-private keys is available, and danger cannot be caused event if one sub-private key is lost. Similarly, since the three sub-private keys are generated, signing can be completed event if one sub-private key is lost. Therefore, grasp of the private key by a private key legal owner is realized, and transaction security is guaranteed. Besides,since all the three sub-private keys correspond to one initial private key, only one time of signature checking is required. Meanwhile, since one sub-private key is saved in the central bank system, it can be guaranteed that the central bank participates in supervision.
Owner:中钞信用卡产业发展有限公司杭州区块链技术研究院

Network congestion control method based on serialization model

The present invention provides a network congestion control method based on a serialization model. The method comprises: building a serialization congestion control model in advance, after sending (t+1)th data packet to a receiving terminal by a sending terminal in the TCP connection, when receiving the confirmation packet answered by the receiving terminal aiming at the (t+1)th data packet through the sending terminal, calculating the current network state parameters through the sending terminal, and taking the network state parameters as the (t+1)th M type network state parameters; according to the preset serialization congestion control model, determining the congestion window value corresponding to the (t+1)th M type network state parameters; according to the congestion window value corresponding to the (t+1)th M type network state parameters, determining the determination value of the size of the (t+1)th congestion window; and calculating the award value corresponding to the (t+1)th M type network state parameters, and determining the assessment value corresponding to the (t+1)th M type network state parameters to update the model. The network congestion control method based on the serialization model can effectively control the network congestion problem from the sending terminal.
Owner:孙广路

Tail gas emission control method for fuel cell hydrogen recovery system

ActiveCN110635153AMaintain stack performanceReduce hydrogen lossFuel cellsExhaust gasProcess engineering
The invention relates to a tail gas emission control method for a fuel cell hydrogen recovery system, which comprises the following steps of: 1) opening a hydrogen inlet electromagnetic valve, keepinga hydrogen inlet pipeline open, simultaneously keeping a hydrogen outlet electromagnetic valve, a one-way stop valve and a tail gas emission electromagnetic valve closed, and enabling a stack to start reaction, 2) temporarily opening the hydrogen outlet electromagnetic valve and then closing the hydrogen outlet electromagnetic valve at the beginning of a control period, purging the tail gas withwater into a gas-liquid separator, at the moment, opening a hydrogen recovery pump and a one-way stop valve to recover hydrogen in the gas-liquid separator, and returning the recovered hydrogen into ahydrogen inlet pipeline for mixing, and 3) closing the hydrogen recovery pump and the one-way stop valve, and controlling the tail gas discharge electromagnetic valve to discharge the tail gas by thecontroller in a multi-time intermittent opening manner within the time when the hydrogen outlet electromagnetic valve, the hydrogen recovery pump and the one-way stop valve are all closed until the hydrogen outlet electromagnetic valve is opened in the next control period. Compared with the prior art, the method has the advantages of high efficiency, low hydrogen tail gas emission concentration and the like.
Owner:上海氢尚新能源科技有限公司

Audio frequency camouflage and recovery method that combines secret key with random unit orthogonal basis

The invention discloses an audio frequency camouflage and recovery method that combines a secret key with random unit orthogonal basis; the method comprises the following steps: firstly dividing a secret audio frequency and a public audio frequency into small segment sequences of the same quantity, and using the secret key to build the random unit orthogonal basis; secondarily, solving the projection of the secret audio frequency small segment sequence on the random unit orthogonal basis so as to fully, effectively and linearly express the secret audio frequency small segment sequence, selecting first k projection factors with large amplitude and energy and recording index positions, and thus forming an index sequence; finely adjusting the public audio frequency and using a high capacity built-in secret writing method to embed the selected projection factors and a line sequence into the corresponding public audio frequency small segment sequence, thus forming a channel public transmission audio frequency; using transform parameters extracted from the channel public transmission audio frequency, and combining with the secret key so as to reconstruct the secret audio frequency. Compared with the prior art, the method can reconstruct the secret audio frequency with different precisions, and strictly depends on the user secret key, thus providing a higher safety.
Owner:SHAANXI NORMAL UNIV
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