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1485 results about "Secure state" patented technology

A secure state is an information systems security term to describe where entities in a computer system are divided into subjects and objects, and it can be formally proven that each state transition preserves security by moving from one secure state to another secure state. Thereby it can be inductively proven that the system is secure. As defined in the Bell–LaPadula model, the secure state is built on the concept of a state machine with a set of allowable states in a system. The transition from one state to another state is defined by transition functions.

Method and system for evaluating network safety situation

The invention relates to a method for evaluating the security situation of a network and a system thereof. The system has a two-surface three-level framework and is provided with a public service surface and a service management surface for executing uniform coordinated management on each functional module of the system; according to a service logic processing flow, the system is divided into three levels: an acquisition level, an analysis level and an exhibition level for completing four evaluating operations of assets, frangibility, threat and security situation; the invention is based on the characteristic of service operation in the network, combines the prior risk evaluation method, the prior flow and the prior security detection tool and provides a set of a novel dynamic real-time evaluation method. The system can analyze the assets and service of the network and the risk of the whole network and carries out the evaluation of the security situation. The system can provide the security state of the whole network in macroscopy, can deepen to specific service and assets and know the specific security problem, thereby effectively helping network security personnel to analyze the root of the security problem and assisting to provide a security solution proposal and implement a defense measure.
Owner:BEIJING UNIV OF POSTS & TELECOMM

System and methods for providing network quarantine

A system and method for ensuring that machines having invalid or corrupt states are restricted from accessing network resources are provided. A quarantine server located on a trusted machine in a network provides a bill of health to a quarantine agent located on a client computer that wishes to gain access to network resources administered by an organization. The quarantine agent requests bill of health from the quarantine server, and receives a manifest of checks that the client computer must perform. The quarantine agent then sends a status report on the checks back to the quarantine server. If the client computer is in a valid security state, the bill of health is issued to the client. If the client computer is in an invalid state, the client is directed to install the appropriate software/patches to achieve a valid state. When a client requests the use of network resources from a network administrator, the network administrator requests the client's bill of health. If the bill of health is valid, the client is admitted to the network. If the bill of health is invalid, or if the client does not have a quarantine agent, the client is placed in quarantine, in which the only network resources accessible to the client are those necessary to install the quarantine agent and requisite software/patches to achieve a valid state.
Owner:MICROSOFT TECH LICENSING LLC

Safe state recognition system for people on basis of machine vision

The invention discloses a safe state recognition system for people on the basis of machine vision, aiming to solve the problem that the corresponding intelligent control decision for the vehicle driving behaviour can not be formulated according to the safe state of the people in the prior art. The method comprises the following steps: collecting a vehicle-mounted dynamic video image; detecting and recognizing a pedestrian in an interested area in front of a vehicle; tracking a moving pedestrian; detecting and calculating the distance of pedestrian in front of the vehicle; and obtaining vehicle real-time speed; and recognizing the safe state of the pedestrian. The process of recognizing the safe state of the pedestrian comprises the following steps: building a critical conflict area; judging the safe state when the pedestrian is out of the conflict area in the relative moving process; and judging the safe state when the pedestrian is in the conflict area in the relative moving process. Whether the pedestrian enters a dangerous area can be predicted by the relative speed and the relative position of a motor vehicle and the pedestrian, which are obtained by a vision sensor in the above steps. The safe state recognition system can assist drivers in adopting measures to avoid colliding pedestrians.
Owner:JILIN UNIV

Safety monitoring early warning and safety management system and method for oil gas extracting, gathering and transporting operation

The invention relates to a safety monitoring early warning and safety management system of oil and gas extraction and gathering operations as well as a method thereof, belonging to the technique field of safety production monitoring and supervision, and the system is composed of a monitoring center arranged at an oil and gas extraction safety monitoring and management department and a plurality of on-site monitoring terminals disposed at all oil and gas extraction operation areas. The method comprises: collecting and transmitting safety-related parameter signals, video signals and audio signals in real time; implementing the analog-digital conversion or signal conversion and compression coding to the signals; then transmitting the signals to all hosts of the monitoring center; processing and analyzing the received three types of signal information by all the hosts and then carrying out the parameter monitoring, video monitoring and audio communication respectively; and outputting the processed three types of information to the spot for being controlled correspondingly. The invention can realize the risk assessment, dynamic intelligent monitoring, safety state analysis, accident early warning and alarming, safety guarantee control and safety management of the whole process of operations ranging from oil and gas extraction, heating, separation processing, storage to transportation for oil and gas production enterprises.
Owner:CHINA ACAD OF SAFETY SCI & TECH

Intelligent video monitoring apparatus of railway crossing

The invention discloses an intelligent video monitor of railway crossing, which includes a video sensor that is arranged on the railway crossing and is capable of covering the traffic condition of the entire crossing as well as a monitoring computer that is used for monitoring the condition of the entire crossing and is capable of dynamic image understanding; wherein, the monitoring computer includes a video image collecting module, a displaying unit, an image pretreatment module, a railway crossing customizing module, a dynamic image understanding module used for analyzing the safety condition of the crossing, a video information saving module, a crossing wireless receiving and transmitting module and an issuing module of crossing safety information; wherein, the issuing module of crossing safety information is connected with a crossing displaying unit and an alarming sound playing unit; and the monitoring computer is connected with the wireless receiving and transmitting device. The invention has a high intelligence level and is capable of automatically judging various dangerous conditions or failures of the crossing through the image understanding technique and is also capable of mutual communication between the train driver and safety condition of the crossing as well as between the passengers and vehicles passing through the crossing and the train running condition through the wireless communication technique.
Owner:ZHEJIANG UNIV OF TECH
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