54results about How to "Meet the requirements of security protection" patented technology

The invention relates to an emergency protection circuit device capable of completing automatic switching when an AC-DC power grid is in an abnormal state, and in particular relates to an intelligent warning and control method dedicated for ensuring safety and stability of the power grid. The method comprises the steps that: an intelligent control master station acquires real-time data of the power grid through an EMS (energy management system), and an intelligent control substation in each zone real-timely monitors the bus voltage of the zone, power-receiving channel overload, main transformer overload in the zone and voltage instability of the power grid in the zone, and starts the power grid safety and stability control operation; the acquired real-time data of the power grid is integrated with the information uploaded by each substation to real-timely form tide section data of the power grid, and the safety and stability of the power grid are evaluated online; and safety and stability early-warning information of the power grid is provided by using the real-time operation data of the power grid to realize safe and stable control of the power grid and to realize the function of the second line of defense of the power system. The method provided by the invention can ensure safe and stable operation of the power grid by regulating a stability control device according to the running condition of the power grid.

The invention discloses a system for data communication between a power distribution master station system and a power distribution terminal. The system comprises at least one wireless data collection terminal and an access point network (APN) transmission network, wherein the wireless data collection terminals are connected with the power distribution terminal one by on and used for collecting electric power information of grid primary equipment in the corresponding power distribution terminal, and transmitting the collected electric power information to a mobile communication network through a preset communication protocol, or transmitting command data received through the mobile communication network to the corresponding powder distribution terminal; and the APN transmission network is used for receiving the electric power information which is transmitted to the mobile communication network from each wireless data collection terminal according to the preset communication protocol and transmitting the electric powder information to the master station system or forwarding the command data transmitted by the master station system to the corresponding wireless data collection terminal through the mobile communication network. The invention also discloses a corresponding method for data communication between the distribution master station system and the distribution terminal. The system and method provided by the invention ensure the security and accuracy of data transmission and great reduction of communication cost.

The invention discloses a safety access method and system based on a fire wall policy, and relates to the technical field of computer information security. According to the safety access method and system, configuration problems and dangerousness of the fire wall policy because of habits or unexpected errors of managers can be avoided through the dynamic open configuration according to needs. Furthermore, after equipment is accessed according to needs, a fire wall can close service access states according to fire wall poly instructions, and therefore the equipment can be effectively protected against external accesses and invasions which do not accord with service protocols. Through the dynamic starting-stopping configuration of the fire wall policy, the service protocols of the fire wall are started and stopped, manual operation of the managers is reduced, and therefore losses caused by operation errors can be avoided. A one-to-one safe configuration method between the fire wall safety policy and the equipment is achieved according to network safety check each time, access needs can form an access period, a safe closed ring from access needs to access to access stop is formed, and therefore the target equipment can be effectively protected against network threats in real time.

The invention discloses an encryption remote control system of a power distribution network. The encryption remote control system of the power distribution network comprises a master station, a safety protection terminal and an FTU terminal, one-way certification communication is carried out between the master station and the terminal by the adoption of an RSA, and the safety protection terminal and the FTU terminal are in communication and connection. The encryption remote control process of the power distribution network comprises the steps that (1), the master station sends a public key message and a modulus message to the safety protection terminal after the terminal is initialized; (2), the master station encrypts a remote control instruction through the RSA to form an RSA remote instruction message and then sends the RSA remote instruction message to the safety protection terminal; (3), the safety protection terminal decrypts and checks the RSA remote instruction message through a public key; (4), if the master station receives an extended definition of checking failure, the master station issues a public key to the terminal again. The safety of a power distribution automatic system is improved, safety management work of the power distribution automatic system is enhanced further, and safety of data transmission inside the power distribution network is guaranteed effectively.

The invention discloses a power equipment inspection device based on an RFID (Radio Frequency Identification Device) electronic tag. The power equipment inspection device comprises multiple RFID tags, a handheld inspection terminal, a communication network and a data server located in a monitoring center, wherein the multiple RFID tags are respectively adhered to to-be-inspected power equipment and are used for storing communication information of power equipment in a character string way, and the communication information comprises an ID (Identity), the channel type and the channel parameters of the to-be-inspected power equipment; the handheld inspection terminal is used for reading a character string of the communication information, which is stored in the tags, of the to-be-inspected power equipment, and sending the obtained ID, the obtained channel type and the obtained channel parameters of the to-be-inspected power equipment to the data server through the communication network; the data server is used for receiving and storing inspection data of the power equipment so as to enable each inquire terminal to inquire. According to the power equipment inspection device disclosed by the invention, the inspection data can be transmitted to a management center in time, so that technical staff in the management center can know equipment situations in time, and a technical support is provided for inspection staff.

The invention relates to power data transmission equipment, a power data transmission system and a detection method of the power data transmission system. The power data transmission equipment comprises an SDH service interface, a PTN service interface, core equipment and a network interface, wherein the SDH service interface and the PTN service interface are separately connected with the core equipment, the SDH service interface is used for providing SDH service accesses to the core equipment, and the PTN service interface is used for providing PTN service accesses to the core equipment; an SDH inner core and a PTN inner core run in the core equipment, and the SDH inner core is physically isolated from the PTN inner core; the core equipment uses the SDH inner core to distribute bandwidthfor various accessed SDH services and transmits the SDH services to an SDH network via the network interface, and uses the PTN inner core to distribute bandwidth for various accessed PTN services andtransmits the PTN services to a PTN network via the network interface. The SDH inner core and the PTN inner core simultaneous run in the single piece of equipment, so that the single piece of equipment effectively carries the SDH services and the PTN services at the same time.

The invention discloses a portable electric power intelligent terminal debugging operation and maintenance system. The system is composed of a hand-held operation and maintenance terminal, a portabletester and a portable mobile power supply; the hand-held operation and maintenance terminal is portable hand-held industrial terminal equipment developed based on an Android system platform, and is low-voltage power mobile operation terminal equipment with extremely high comprehensiveness; the portable tester is a special test tool specially developed for debugging, operation and maintenance of power intelligent terminals, especially distribution network automation terminals, and can realize full-automatic test of a plurality of functional items such as three-remote functions, protection and logic functions, fault alarm and the like of power distribution automation terminals (FTU, DTU, intelligent distribution transformer terminals and transformer area intelligent fusion terminals); the portable mobile power supply adopts a high-performance lithium iron phosphate battery as an energy storage standby, is small in size, light in weight and convenient to carry, and provides reliable powersupply guarantee for various emergency scenes. The three components cooperate with each other to form the portable power intelligent terminal debugging operation and maintenance system; and the system can be widely applied to in-plant debugging, delivery inspection, warehouse acceptance, field installation debugging, maintenance after commissioning and other whole-process operations of the powerintelligent terminals.

The invention provides a PLC safety real-time monitoring and measuring method and system. According to the technical scheme, under various operation conditions of the normal operation state of the PLC, values of various inputs and outputs and various soft element states in the PLC are recorded and encoded when key points are operated, and a code table is formed; in the operation stage, values of various inputs and outputs and values of various soft element states in the PLC are collected and encoded at various operation key points, corresponding state code words are obtained, then the state code words are rapidly searched in a code table, if the state code words cannot be found, a PLC emergency response mechanism is started, and the safety of a PLC application system is protected. According to the technical scheme, the safety of the PLC application system can be continuously and rapidly measured when the PLC operates, PLC execution code exception and input and output exception can be found in time, and compared with the prior art, the higher safety protection requirement of the PLC application system can be met.

The invention relates to a serialization method of a binary file penetration reverse isolation device, which comprises the following steps: step 1, reading data of a binary format file on a disk by anexternal network side sending program to obtain a binary format data sequence; and step 2, serializing the binary format data into text format data by an external network side sending program. The method has the advantages that on the premise that the safety of the production control area is guaranteed, data reverse channels of the production control area and the information area are opened, andcomprehensive utilization of data of the information area by the production control area is achieved; the comprehensive utilization effect and the data value of the power plant information data are improved; meanwhile, the national requirement for safety protection of the power monitoring system is met, and safe and reliable operation of the production control area is guaranteed; a binary file canpenetrate through the reverse isolation device, and in the application of a power system, data such as an optimization model and optimization parameters can be efficiently transmitted between a control area and a non-control area under the condition of meeting the national power safety protection requirements.

The invention relates to the technical field of rail traffic train or train set route end safety protection, in particular to a train set route end safety protection train stopper. The train set routeend safety protection train stopper comprises a contact, a main body frame, connecting buckle plates, a hydraulic system and a braking system; the bottoms of the two sides of the main body frame aremounted on a steel rail through the connecting buckle plates in a buckled mode; a hydraulic buffer of the hydraulic system and a two-stage hydraulic cylinder are fixed to the main body frame; a one-way overflow valve is mounted on the rear part of the two-stage hydraulic cylinder and communicates with the hydraulic buffer and a transverse thrust hydraulic cylinder through a hydraulic pipeline; thetransverse thrust hydraulic cylinder is connected with the braking system; the contact is mounted at the front end of the hydraulic buffer; a friction body frame bearing bracket of the braking systemis mounted on the inner side of the bottom of the main body frame; a friction body frame is arranged in the friction body frame bearing bracket and connected with the transverse thrust hydraulic cylinder through a force transmitting pin; and a friction body is mounted on the front part of the friction body frame, and friction force is generated through contacting of the friction body and the steel rail to brake the main body frame.

The invention discloses an airbag for an automobile. The airbag for the automobile comprises a main airbag and a two-stage gas generator arranged in the main airbag. An axillary airbag is sewn on the outer surface of the main airbag, an air hole is formed in the position, corresponding to the axillary airbag, at the surface of the main airbag, the air hole is sewn with an airtight air duct, one air outlet of the two-stage gas generator is communicated with the main airbag, and the other air outlet of the two-stage gas generator is tightly docked with the air duct. The airbag for the automobile is provided with the main airbag and the axillary airbag which can be inflated independently, the axillary airbag is provided with the special air duct and can be quickly inflated, when a relatively severe collision happens, the axillary airbag can be inflated within a short time and immediately fulfills the buffering function, then the main airbag can be expanded, and thus a more all-sided protection effect can be achieved. Therefore the airbag for the automobile can achieve the more all-sided protection effect and can meet security protection requirements under all kinds of circumstances.

The invention provides an intelligent distribution network safety access platform and an implementation method thereof. The platform comprises a power distribution main station, a power distribution safety access gateway, a data isolation assembly and a power distribution terminal, a safety chip is embedded in the power distribution terminal. The power distribution main station, the data isolationassembly, the power distribution safety access gateway and the power distribution terminal are in communication connection in sequence. The power distribution main station initiates a connection request to the acquisition server through the data isolation assembly, the acquisition server sends the connection request to the power distribution terminal through the power distribution security accessgateway, and the power distribution security access gateway establishes connection with the power distribution terminal and performs security negotiation with the power distribution terminal. According to the platform, the construction and safety protection process of the distribution automation service system is accelerated, the stable transition of new and old distribution main stations and terminals is facilitated, the information safety protection level of a company production management area and a management information area is maintained on the basis of meeting the information safety protection requirement, and the safety of the distribution automation system is ensured.

The invention discloses a nuclear power station radiation alarm inhibition method comprising the steps that a nuclear power station radiation monitoring system transmits monitoring result information to a nuclear power station digital control system DCS; if the monitoring result information is early warning information, whether alarm operation is executed is confirmed by the DCS according to the preset alarm control state; and if the alarm control state is an alarm inhibition state, execution of alarm operation according to the early warning information is forbidden by the DCS. Therefore, remote alarm inhibition in a nuclear power station can be realized. Besides, the invention also discloses a nuclear power station radiation alarm inhibition device and system.

The invention relates to an energy-dissipating component of a building structure, which belongs to the field of building structure installation, in particular to a frictional energy-dissipating and buckling-proof energy-dissipating component separated in the shape of a rice. The energy-dissipating steel and the energy-dissipating P-shaped steel form the P-shaped energy-consuming part. The eight areas separated by the P-shaped energy-consuming part are respectively equipped with energy-absorbing buffer isolation layers. High-damping concrete is poured on the energy-absorbing buffer isolation layer, and the high-damping concrete An energy-dissipating filling body is arranged in the middle, and the energy-dissipating steel, high-strength slab and energy-dissipating m-shaped steel are all connected with the reinforcing ribs provided on the embedded part and the end fixing plate. The present invention is a kind of frictional energy dissipation and buckling-proof energy-dissipating component separated in the shape of a square, which absorbs energy through friction and deformation buffering when it is loaded, adopts an effective isolation method, avoids damage to high-damping concrete, and improves its energy-dissipating capacity. The frictional energy dissipation and the energy dissipation effect of the P-shaped separated anti-buckling energy-dissipating components can reduce the seismic response of the building structure and play a very good role in protecting the building structure.

The invention relates to an automatic control system for a one-way intelligent channel. The automatic control system comprises a movable box body, wherein a first channel door and a second channel door which are oppositely opened are respectively arranged on two opposite surfaces of the box body; a one-way channel is formed between the first channel door and the second channel door; a control system is arranged in the box body; the control system comprises an industrial personal computer, a detection sensor and a driving device; the driving device is used for driving the first channel door andthe second channel door to be opened or closed; the industrial personal computer is in control connection with the driving device; and the detection sensor is in signal connection with the industrialpersonal computer. According to the automatic control system for the one-way intelligent channel, on the basis of realizing one-way passage, when a passenger passes through the one-way channel door,the contact between the body and a door leaf is avoided, so that time and labor are saved, the safety protection requirement of travel during an epidemic situation is met, and the safety is improved.

The invention discloses a strengthened concrete column structure with anticorrosion and anti-fire functions. The strengthened concrete column structure comprises sealing gum, a high-strength anti-crack anti-leakage shell, a separating anti-fire material, a rock wool board, fiber-reinforced-material-filled concrete and shearing pins. The concrete column structure is sequentially provided with the sealing gum, the high-strength anti-crack anti-leakage shell, the separating anti-fire material, the rock wool board and the fiber-reinforced-material-filled concrete from outside to inside; the separating anti-fire material is internally provided with a plurality of fixing ribs, and the shearing pins are inserted into the fiber-reinforced-material-filled concrete from the sealing gum. The strengthened concrete column structure with the anticorrosion and anti-fire functions has the advantages of being good in anticorrosion performance, earthquake resistance and durability, large in bearing capacity and high in anti-fire function, the anti-fire capacity of the concrete column structure is furthest improved, disasters generated by fire are remarkably reduced, an earthquake response of a building structure is reduced, the good protection effect on the building structure is achieved, and the strengthened concrete column structure is of great significance in building of the field of buildingstructure vibration control.

The invention relates to a method and system for recognizing terminal equipment simultaneously accessing a wired network and a wireless network. The method comprises the following steps: representing the correlation between each first motion track corresponding to each preset time precision and each second motion track corresponding to each preset time precision through employing a first correlation coefficient; the method provides a judgment basis for recognizing terminal equipment which is simultaneously accessed to a wired network and a wireless network, can meet special network safety protection requirements, is suitable for a plurality of workplaces with a large number of terminal equipment, and is high in precision and efficiency and capable of reducing management cost compared with an existing manual recognition mode.

The invention belongs to the field of communication terminals, in particular relates to a multifunctional interface communication terminal for a distribution network, and provides the following schemeaiming at the problems that the existing communication protocols are incompatible, cannot be interconnected and hinders smooth communication, and meanwhile, a signal receiving plate does not have anangle adjusting function in the use process so that the signal is poor. The communication terminal comprises a communication terminal body with a hollow structure, wherein a fixed plate is fixedly mounted at the top of the communication terminal body; and a placing groove is formed in the top of the fixing plate. The communication terminal is simple in structure, convenient to operate, high in device integration, small in size and simple, convenient and rapid in on-site installation method, and the on-site transformation cost of the distribution network is greatly reduced; and the signal receiving plate can be rotated and subjected to angle adjustment at the same time, the signal receiving plate is adjusted to a place with strong signals, and received signals are enhanced, so the requirements of people are met.

The invention discloses a real-time control method for the output power of a hydropower station to ensure the stability of the discharge flow and the downstream water level, and quickly analyze and calculate the operation data within a period of time under the premise of relatively low resource consumption. The present invention can not only greatly reduce the number of variables generated in the calculation process, but also not excessively reduce the flexibility of power regulation. For example, it is required that the water level in the downstream of the hydropower station does not exceed 1 meter within 60 minutes. T ₂ When it is 5 minutes, the number of temporary storage variables does not exceed 30, and the effect is to ensure that the downstream water level does not change more than 1 meter during the random change period of 60 minutes to 65 minutes, which is very close to the original safety Restrictions.

The invention relates to the technical field of rail transit train or train line end safety protection, in particular to a sliding car stop. The device comprises a collision head, an elastic compression device, a main body frame, a connecting rod structure, a sliding way and a friction device. The main body frame is of a metal frame structure and comprises an upper cylindrical structure and a lower trapezoidal frame structure. The elastic compression device is arranged in the cylindrical structure. The collision head is installed from the front portion of the cylindrical structure of the mainbody frame, and the elastic compression device is encapsulated in the main body frame. The sliding way is installed at the bottom of the trapezoidal frame structure of the main body frame, the top ofthe connecting rod structure is hinged to the elastic compression device, the middle of the lower part of the connecting rod structure is arranged on the sliding way and can slide along the sliding way, and the two sides of the lower part of the connecting rod structure are each provided with a friction device. The friction devices are hinged to the connecting rod structure, the sides of the friction devices are in contact with the side faces of a steel rail, and the friction devices rub with each other to work. According to the technical scheme, the problems of limited energy absorption, limited arrangement quantity, no continuity, high production and maintenance cost and the like in the prior art are solved.