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1922 results about "Effective solution" patented technology

Pupil center-corneal reflection (PCCR) based sight line evaluation method in sight line tracking system

InactiveCN102125422AAchieve estimatesReduced minimum hardware requirementsEye diagnosticsHead movementsEffective solution
The invention provides a pupil center-corneal reflection (PCCR) based sight line evaluation method in a sight line tracking system, belonging to the field of man-machine interaction. With specific to the main problems on user head motion limits and individual calibration in the traditional PCCR, the invention provides a method for compensating head positions under the conditions of a single camera and a single light source, which realizes the analysis compensation for influences of head positions variation to a pupil center-corneal vector, establishes an individual difference conversion model and further simplifies a calibration process to be a single-point process. Accordingly, a novel sight line evaluation method is developed; and in the method, the requirements of precise sight line evaluation on minimum hardware are decreased to be the single camera (uncalibrated) and the single light source, complex system calibration is unnecessary, natural head-motion sight line evaluation is realized, and user calibration is simplified to be single-point calibration. All links in the method meet the instantaneity requirements, and an effective solution to the sight line tracking system oriented to man-machine interaction is provided.
Owner:UNIV OF SCI & TECH BEIJING

Two-factor USB authentication token

The present patent application discloses a USB token that advantageously mimics a human interface device such as a keyboard in interacting with a host computer, thus removing the need for pre-installation of a dedicated device driver. This is accomplished by requiring the host computer to direct the input of the attached human interface devices of the keyboard type, including the USB token, exclusively to the program interacting with the USB token, by using cryptographic algorithms based on a shared secret, which require less data to be transferred than PKI-based algorithms, and by employing an efficient encoding scheme that minimizes the time needed to exchange information with the USB token, and minimizes the probability of generating ambiguity with input that might legitimately be generated by other attached human interface devices. By using only symmetric encryption and the low-speed USB protocol, a single low-performance processor may be used, which results in a more cost-effective solution than PKI USB tokens emulating the combination of smart cards and smart card readers or USB tokens presenting themselves to the host computer as mass storage devices. The overall security is increased by adding a second authentication factor consisting of a static password entered by the user, and by limiting the number of valid token response that can be generated or retrieved in a usage session.
Owner:ONESPAN NORTH AMERICA INC

Network online monitoring system for transformer substation

The invention discloses a network online monitoring system for a transformer substation. The network online monitoring system comprises a network monitoring device, a monitoring plug-in component for a switchboard of the transformer substation and a monitoring plug-in component for network messages of the transformer substation; the network monitoring device is applicable to the intelligent transformer substation, and the monitoring plug-in component for the switchboard of the transformer substation and the monitoring plug-in component for the network messages of the transformer substation realize a network monitoring function; the network monitoring device comprises a special interface card for multiple network communication interfaces, a main CPU (central processing unit) control panel and relevant control and communication interfaces; the monitoring plug-in component for the switchboard of the transformer substation acquires a state of the network management switchboard and displays data warning and abnormity information in real time; the monitoring plug-in component for the network messages of the transformer substation acquires the network transmission messages of the transformer substation and displays message abnormity information and variation of data states of the messages in real time. The network online monitoring system has the advantages that the network online monitoring system can be used for monitoring and warning display for a communication state of a network in the intelligent transformer substation in real time, and important processed state information can be directly transmitted into the monitoring system for the transformer substation, so that the transformer substation can be monitored in a unified manner, and an effective solution is provided for problems of incapability of visually monitoring network information in an existing intelligent transformer substation in real time, difficulty in tracking procedure abnormality and difficulty in analyzing shortcomings of an intelligent device.
Owner:STATE GRID CORP OF CHINA +3

Time sequence classification early warning method for storage device

The invention discloses a time sequence classification early warning method for a storage device. The method comprises the steps of collecting storage device parameters in real time; cleaning data; performing ARIMA time sequence analysis; and performing logistic regression analysis and early warning mechanism output. Under the background of a big data environment, time sequence prediction analysisis performed by adopting an ARIMA model according to historical data and hard disk SMART information obtained by statistics; the correlation between a SMART eigenvalue and a fault rate of the storagedevice is analyzed; and an eigenvalue more suitable for a Logistic model is selected out to perform classification prediction. A machine learning method is adopted for predicting the fault rate of the storage device, so that the problems of classification singleness and low early warning intensity in final prediction of the storage device are solved, the defects of hysteresis, low accuracy, pooractual early warning effect and difficult application to the big data environment for a disk early warning mechanism in the prior art are overcome, the occurrence probability of each early warning intensity can be predicted, and an effective solution is provided for real-time operation maintenance and monitoring in a data center environment.
Owner:HUAZHONG UNIV OF SCI & TECH

Method and system for protecting account, preventing order from being tampered and preventing fishing attack based on graphical two-dimensional code

The invention discloses a method and a system for protecting an account, preventing an order from being tampered and preventing a fishing attack based on a graphical two-dimensional code. Double-link data is used for authentication; and two links comprises a first link for authentication from a personal computer (PC) client to a user name and a static password of an application server, and a second link for authentication through an authentication service from the client based on a mobile terminal to the application server. The system comprises the mobile terminal, the PC client, the application server, an authentication system server and an authentication system disaster backup server. The invention has the advantages that: authentication is performed on the application server by being combined with the graphical two-dimensional code information of the mobile terminal and the application server according to the double-link data of information transmitted between the application server and the mobile terminal, so that a brand new effective solution is provided for preventing the fishing attack, preventing the order from being tampered and preventing a number from being stolen; the network security is improved greatly; and the invention has relatively high practical value and practical significance.
Owner:TIMESAFER BEIJING TECH
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