34results about How to "Implement security assessment" patented technology

The invention discloses deficiency ultrasonic detecting equipment of mechanical equipment based on wavelet theory, the whole equipment is composed of an ultrasonic flaw detector, a high-speed data acquisition system, a minitype computer, a wavelet analysis software, an equivalent quantitative model for detecting signals and an equipment safety performance evaluation system. The ultrasonic flaw detector comprises a synchronous circuit, a transmission circuit, an ultrasonic detecting energy converter, a signal receiving circuit which are connected, the high-speed data acquisition system adopts a high-performance digital storage oscilloscope and comprises a synchronous trigger, a gain position adjustment part, a data acquisition mode and time base part, a waveform recording part and a display part and the other parts, the computer is allocated with a wavelet analysis integration software which is self-developed, the equivalent quantitative model for detecting signals and a safety evaluation theoretical model. The invention breaks through the application limits of the traditional ultrasonic flaw detector, effectively improves the sensibility and measuring accuracy of flaw detection and provides novel equipment and a new method for the ultrasonic detecting problems with complex structure. The equipment has convenient usage and high engineering application value.

The invention provides a method and device for updating login information of a login control. The method includes the steps that the password security level of login information stored by the login control is detected according to the preset frequency; for a password with the security level lower than the preset password security level, a password generator is started to generate a replacement password; the generated replacement password is used for replacing the password with the security level lower than the preset password security level in the login information stored by the login control. By the adoption of the method and device, the password with the high security level can be generated for a user, the user does not need to memorize or fill in a complex password , the security of the password is evaluated, the password is stored and modified, and use experience and operation convenience of the user are improved.

The invention discloses a transmission line self-adaptive overload protection method considering the dynamic thermal characteristics. When the line current amplitude is greater than the maximum allowable current of the line, the protection is started, and the line power is measured every Δt time; the sampling power is compared with the line power The size of the allowable long-term operating power, if the sampling power is greater than the allowable long-term operating power of the line, calculate the estimated allowable overload time of this sampling; then compare the estimated allowable overload time of this sampling with the size of the next sampling time, If the estimated allowable overload time of this sampling is less than or equal to the next sampling time, the protection action time is set, and when the overload duration meets the protection action time, the overload line is cut off. The invention can delay taking protection measures for overloaded lines as much as possible under the condition of line safety, taking into account line safety and chain failure risks, and does not depend on communication, simple in principle, easy to implement, and has high reliability and sensitivity .

The invention provides an access control method, device, computer equipment and computer-readable storage medium. The access control method includes: receiving an access request; determining the entity layer corresponding to the access request, wherein the entity layer includes four access entities, which are respectively an access user, an access device, an access proxy service, and a proxy service device; for each access entity, Obtain the security assessment data of the access entity, and calculate the security assessment value of the access entity according to the security assessment data; determine the security assessment value of the access request according to the security assessment values ​​of all the access entities; and when the security assessment value of the access request is less than the security threshold, Send a command to block access requests to the access proxy service. The present invention can reduce the complexity of authority judgment.

The invention provides a method and a system for mobile Internet security assessment, which relate to the field of network security assessment and are used to implement security assessment for mobile Internet. The method includes: acquiring an assessment task input by a user; acquiring a security assessment indicator required for performing the assessment task; and collecting security assessment data of network element devices and / or mobile terminals in the mobile Internet according to the security assessment indicator ; Determine the security assessment result of the network element device and / or mobile terminal in the mobile Internet according to the security assessment data; determine the security assessment result of the mobile Internet network element device and / or mobile terminal according to the security assessment result Safety Assessment Results. The embodiment of the present invention is applicable to the scenario of performing security detection on the mobile Internet.