30results about How to "To achieve the purpose of verification" patented technology

The invention discloses a data verification method, device and system. Wherein, the method includes: the user terminal receives the random check code; after the user terminal triggers the check of the random check code, the random check code and the terminal identification information of the user terminal are sent to the first verification server that the current user terminal is allowed to access ; In the case that the first verification server is a verification server that generates a random check code, the user terminal receives the verification result returned by the first verification server to verify the random check code; if the first verification server does not generate a random check code In the case of the verification server, the verification result received by the user terminal is the verification result generated by the second verification server verifying the random check code. The present invention solves the technical problem in the prior art that verification codes cannot be synchronized in time between verification servers deployed in different geographical areas, resulting in inability to accurately perform data verification when the address position of a user terminal to be verified drifts.

The invention provides a simulation test method of Tier III performance of a marine low-speed diesel engine. The marine low-speed diesel engine comprises a parent form machine and a sub-type machine,wherein the exhaust gas of the sub-type machine directly enters a supercharger through an exhaust manifold, a throttling orifice plate is arranged in a pipeline of the exhaust manifold connected withthe supercharger for replacing and simulating a "throat" function of an HPSCR device so as to perform a performance simulation test under a Tier III condition and diesel engine performance parameter verification under the Tier III condition, and a diameter of a throttling orifice of the throttling orifice plate is calculated according to the diesel engine thermodynamic principle and diesel engineperformance data under the Tier III condition. According to the simulation test method provided by the invention, the diesel engine performance data under the Tier III condition are simulated by usingthe throttling orifice plate, so hat the performance parameter simulation test of the diesel engine under the Tier III condition and the performance parameter verification of the diesel engine can becompleted without installing the HPSCR device, thereby avoiding a lot of adverse effects brought by the installation of the HPSCR device, and the simulation test method is suitable for bench tests ofsub-type machines of marine low-speed diesel engines in which the HPSCR devices are installed.

The invention discloses an AFDX (Avionics Full Duplex Switched Ethernet) bus information checking system and method. A distributing end of the AFDX bus information checking system distributes a data serial number for an effective load in each piece of data of information to mark self generated sequences of all data, a receiving end of the AFDX bus information checking system can check each piece of data in the information according to the data serial number, and whether the self sequence of the piece of data is normal or not can be judged; thus, the purpose of checking data sequence completeness of each piece of information is achieved, and the situation that information data received by the receiving end are abnormal in sequence due to self data sequence error when the data in the information keeps a normal sequence in a transmission process is avoided.

The invention discloses a verification method, device and system for transaction data of electric vehicle. The method comprises the following steps: acquiring the transaction recorded data of the electric vehicle, wherein the transaction record data comprises charging station information, running charging pile information and charging transaction recorded information; a plurality of accuracy is obtained according to the transaction recorded data; and the transaction log data is obtained corresponding to the accuracy rate of the preset condition among a plurality of accuracy rates. The verification method, device and system for transaction data of electric vehicle has the advantages of solving the technical problem that the erroneous transaction record transaction record data of the electric vehicle in the prior art is discarded, resulting in an incomplete transaction record.

The invention discloses a method for protecting key string data in IOS, a storage medium, equipment and a system, and relates to the technical field of IOS data protection. The method comprises the following steps: creating a HOOK function in a current IOS system; Obtaining a reading function for reading key string data; Obtaining a stack information function used for obtaining the current function call stack information; performing HOOK on the obtained reading function by using the created HOOK function, so that the implementation method of the reading function is replaced by a custom implementation method added with a stack information function, wherein when the implementation method of the reading function is called, the reading function is intercepted and a user-defined implementationmethod is executed, so that calling stack information of the current calling reading function is obtained; And reporting the obtained call stack information to a server for legality verification. Themethod can effectively prevent the hacker program from reading the secret data in the key chain, and protects the safety of the key chain data.