105results about How to "Accurate security" patented technology

Real time security, integrity, and reliability postures of operational (OT), information (IT), and security (ST) systems, as well as slower changing security and operational blueprint, policies, processes, and rules governing the enterprise security and business risk management process, dynamically evolve and adapt to domain, context, and situational awareness, as well as the controls implemented across the operational and information systems that are controlled. Embodiments of the invention are systematized and pervasively applied across interconnected, interdependent, and diverse operational, information, and security systems to mitigate system-wide business risk, to improve efficiency and effectiveness of business processes and to enhance security control which conventional perimeter, network, or host based control and protection schemes cannot successfully perform.

The invention proposes a system simulation method for connecting large-scale wind power into a power grid in a centralization way and an effective equivalent mode of a high-capacity wind power station. Based on the synchronization operating characteristics of the large-scale wind power, the invention makes the large-scale wind power synchronization simulation analysis principle under the comprehensive consideration of the influences of the wind resource characteristics of wind power generation, the dynamic response characteristics of a wind driven generator and the differentiation characteristics of different types and different control modes of various wind driven generators and the like; therefore, the invention constructs the complete analytical framework and flows of the system simulation assessment with the large-scale wind power being connected into the power grid. The simulation analysis result shows that the system simulation method can comprehensively, objectively and accurately assess the impact and the safety bottleneck to the stable running of a power system caused by wind power synchronization after the base synchronization of the large-scale wind power due to the affection to the dynamic response characteristics of the power system by the differentiation of the types and the response characteristics of various wind driven generators and the wind resource characteristics. Therefore, the method is beneficial for the scheduling and operating staff to accurately grasp the affection to the system characteristics by the connection of the large-scale wind power and the law of the connection of the large-scale wind power, and has significant meaning for instructing and making the corresponding precautionary and improved measure and ensuring the normal running of the system after the connection of wind power.

The present invention discloses a gate control device which controls the passage (e.g., entry, exit, etc.) through a passageway of both authorized persons and unauthorized companions of authorized persons into a protected room. The device may be configured such that the unauthorized companions may be permitted or denied passage if the unauthorized companions are with an authorized person. For example, the device may be configured to allow an entire group of persons to enter a room if only one authorized person is present. In another example, the device may deny passage to the entire group if it contains even one unauthorized person.

A method for evaluating the safety of a battery under an internal short-circuit condition. The method for evaluating an internal short-circuit of a battery is characterized in that a short-circuit can be caused at a desired location inside the battery. According to the evaluation method of the invention, the evaluation result is not affected by the constitution of the outermost part of the battery unlike nail penetration tests which are conventional evaluation methods. Also, unlike crush tests which are conventional evaluation methods, the locations of short-circuits do not vary among tests and the safety under an internal short-circuit condition can be evaluated accurately.

A device of flow battery is provided. The device comprises a cell stack, a heat exchanger, an anode electrolyte tank, a cathode electrolyte tank, a circulating pump, a temperature-retaining tank, a charging/discharging unit, a DC/AC converter and a monitoring unit. The device can be assembled in a container to form a portable flow battery to be integrated into a mobile power pack or a stationary power supply. Thus, the present invention is portable and swappable. The device can adjust power output according to flows and energy-storing statuses for saving cost and maximizing benefit. Household electricity is provided through the DC/AC converter. AC of a mains supply is converted into DC to charge power to an electric vehicle through the charging/discharging unit. Electrolytes in the anode and cathode electrolyte tanks can be directly replaced for finishing charging power in a short time.

The invention provides a planning simulation method for estimating the adaptability of a wind power grid-connection scale and a power grid net rack, comprising the following steps of: (1) carrying out steady-state analysis on a planning scheme; adjusting a power grid planning scheme according to a steady-state analysis result; (2) carrying out dynamic analysis on the planning scheme and adjusting the power grid planning scheme according to a dynamic analysis result; (3) carrying out mutual influence analysis on a wind power scale and a grid-connection near-region net rack and adjusting the power grid planning scheme according to a mutual influence analysis result; and (4) revising and identifying the power grid planning scheme to obtain a revised wind-power power supply and power grid coordination planning scheme. According to the planning simulation method for estimating the adaptability of the wind power grid-connection scale and the power grid net rack disclosed by the invention, after the comprehensive and large-scale wind power grid-connection is carried out, influences on dynamic properties of a plurality of fan types, a responding property difference and a wind source property on an electric power system are good for promoting coordinated development of wind power grid-connection and power grid planning.

The invention discloses an electric automatic retractable pedal of an off-road vehicle. The electric automatic retractable pedal comprises a pedal and a retractable mechanism, wherein the retractable mechanism comprises a motor, a worm and a worm wheel sheet; an output shaft of the motor is connected with the worm; the worm and the worm wheel sheet are in meshing transmission; the worm wheel sheet and a first gear are fixedly connected with a first rotary shaft through a key; a rear right swing arm is fixedly connected with the first rotary shaft through a pin; the first gear is meshed with a second gear; the second gear is fixedly connected with a secondary rotary shaft through a key; a rear left swing arm is fixedly connected with the second rotary shaft through a pin; the rear right swing arm is articulated with a front right swing arm; the rear left swing arm is articulated with a front left swing arm; the front right swing arm and the front left swing arm are articulated through an articulation hinge pin; and the articulation hinge pin is connected with the pedal. The invention provides an electric automatic retractable pedal of an off-road vehicle, which has an automatic retractable structure and is convenient to use.

The invention provides a power-on sequence control circuit, a power-on sequence control method, a control device and an electronic terminal. The circuit comprises a trigger unit comprising a first trigger and a second trigger. Two input ends of each trigger are each connected with a time delay circuit, so that the time delay of an output power source control signal is the sum of the time delay of two input end signals. Power source drive signals are output through the output signals of the two triggers to drive power source units. The time delay differences between the power source drive signals form power-on sequences of the power source units, and accurate power-on time delay control and safe power-on sequences are realized.

The present invention relates to an Electronic ballast for operating a high-pressure discharge lamp, comprising a switched-mode power supply circuit (SMPS) for supplying a rail voltage Vrail to the high pressure discharge lamp, the power supply circuit comprising a half bridge commutating forward circuit including an inductance (Lhbcf), a capacitor circuit of a first capacitor (Cs1) and a second capacitor (Cs2) in series, the lamp (LA) being connectable between the inductance (Lhbcf) and a midpoint (M) between the first and second capacitor (Cs1,Cs2); a duty cycle control circuit, connected to the switched-mode power supply circuit, for controlling the duty cycle of the half bridge commutating forward circuit; and overvoltage protection means for protecting said capacitors against overvoltage, comprising—a midpoint voltage detection circuit for detecting the voltage at the midpoint between the first and second capacitor, the midpoint voltage detection circuit providing a first signal representative of the detected midpoint voltage; voltage difference determining circuit for determining the difference between the first signal and a second signal, which is representative of half the rail voltage, wherein the voltage difference determining circuit is connected to the duty cycle control circuit and the duty cycle control circuit is operable to change the duty cycle of the half bridge commutating forward circuit if the determined difference exceeds a maximum voltage difference.

A kind of distilled water machine which can be directly and easily placed on common water dispenser to replace commercial available mineral water bucket. It is integrally designed as water bucket shape used on water dispenser, including cooling section, heating section, and water storage section set in turn from top to bottom inside the shell. The heating section is equipped with a heating element to connect with control circuit. Water becomes vapor through the heating of this heating section, and the vapor will flow into the cooling section for cooling and finally flow into the water storage section. A distilled water outlet is set at the bottom of the water storage section. This invention adopts a one-key switch control to realize convenient operation, high safety as well as energy-saving effect.

The invention discloses an analysis platform for supervising online catering, and relates to the technical field of data collection. The analysis platform has the following work steps of collecting data of an online catering manager, obtaining basic indexes of the online catering manager, and utilizing other auxiliary indexes to form big data of internet catering; based on the malicious behavior of the online catering manager and consumer comment feedback, grading the online catering manager and mining the big data deeply at the same time, acquiring all predicted indexes of the online catering manager, establishing a precise prediction model of food safety, supervising the operation of online catering in real time, conducting analysis through a comparison with internal information of the State Food and Drug Administration, and automatically screening out fraudulent managers.

The embodiment of the invention provides a method and a device for conducting security detection on a network page. The method mainly comprises the following steps: conducting domain name inspection on the network page to be accessed by a browser, converting the inspection result of the domain name inspection to a domain name judgment threshold value, conducting URL inspection on the network page, converting the inspection result of the URL inspection to a URL judgment threshold value, conducting e-mail inspection on the network page, and converting the inspection result of the e-mail inspection to an e-mail judgment threshold value; weighting and summing the domain name judgment threshold value, the URL judgment threshold value and the e-mail judgment threshold value to obtain a total judgment threshold value, comparing the total judgment threshold value with a preset total alarm judgment threshold value, and determining the security of the network page according to the comparison result. According to the method disclosed by the invention, the security of the network page can be effectively identified, the phishing page in the financial industry and other industries can be accurately identified, and the property security of users can be ensured.

The invention relates to the field of fuel gas pipeline monitoring, in particular to a fuel gas pipeline safety early-warning system which comprises a main station system and a substation system. The main station system comprises a data processing system and a waveform display terminal connected with each other; and the substation system comprises a data acquisition system; and the data acquisition system is connected with the data processing system. The data processing system comprises a sonic wave sensing part, a pressure sensor and a gas detection sensor; and the sonic wave sensing part comprises a sonic wave sensor and a subsonic wave sensor. According to the fuel gas pipeline safety early-warning system provided by the invention, by utilizing the combination of multiple ways of sonic wave sensing and pressure and gas sensing, whether leakage occurs or not, the type of the leaked gas and the position information of leakage occurrence can be accurately and timely judged, so that an accurate judgement basis and safety early-warning are provided for safety monitoring personnel.

A common-cause failure reliability judging system and method based on data drive can perform common-cause failure reliability analysis on a large complex system. The system comprises four modules of a data collector, a common-cause failure analyzer, a failure tree model analyzer and a failure tree analyzer, wherein the data collector acquires common-cause failure data and given system information and provides the common-cause failure data and the given system information for other modules; the common-cause failure analyzer determines elementary event grouping according to common-cause failure data and performs common-cause failure analysis on the elementary event groupings; the failure tree model analyzer modifies a failure tree model of a given system according to the elementary event grouping result; and the failure tree analyzer analyzes a given failure tree model. According to the common-cause failure reliability judging system and method, any types of asymmetrical common-cause failure can be analyzed, and reliability of the large complex system can be more accurately analyzed and monitored.

The invention discloses a seal protection box and an application method of the seal protection box. The seal protection box comprises a shell body, a top wall, a bottom wall and at least two upper covers, wherein a fingerprint identifier is arranged at the first side of the top wall; the shell body is internally provided with a cavity; the cavity is internally provided with a wireless communication module, a GPS (Global Positioning System) positioning module and a locking device; the GPS positioning module, the fingerprint identifier and the locking device are communicated with a background server through the wireless communication module; a containing cavity is formed between one upper cover and the shell body; an opening is formed above the containing cavity and the upper cover covers the opening of the containing cavity. According to the application method disclosed by the invention, the seal protection box is authorized to use. The seal protection box disclosed by the invention canbe used for conveniently and effectively realizing utilization authorization of a seal, and accurate tracking of a seal position, supervision, authorized utilization and safekeeping can be realized;the risks that the seal is stolen and abused are reduced; the safety management of the plurality of seals can be realized at the same time.