1102 results about "Emergency control" patented technology

Emergency remote control communications systems and methods provide remote access to, activation of, deactivation of, monitoring of, communications with, and / or otherwise management of a Voice-Over Internet Protocol (VoIP) communications device (and / or another peripheral communications device) in response to an emergency communication originating from the VoIP communications device. An emergency remote control communications software product detects an emergency communications signal, and, in response, generates an emergency remote control communications signal for communication to the VoIP communications device via a communications network.

The invention discloses a microgrid energy management system which comprises an information collection and data preprocessing unit, a network analysis unit and an energy optimization unit, wherein the information collection and data preprocessing unit performs data mining preprocessing on information, collected by SCADA / PMU mixed measurement, by adopting a CIM model and combining historical section management, the network analysis unit is used for realizing mixed measurement-based microgrid state estimation on the basis of network topology analysis, performing risk analysis and assessment and sensitivity analysis to realize early warning and warning for failure threat, and adopting corresponding precautionary measures or performing emergency control, and the energy optimization unit is used for performing microgrid energy optimization scheduling by combining forecast information and system operation analysis according to the information of the microgrid state estimation. The invention also provides a method which adopts the microgrid energy management system to perform microgrid energy management. The functions of the microgrid energy management system are further perfected, and the system safety, the power supply reliability and the system control accuracy and effectiveness of a microgrid are improved.

The present invention provides an emergency control apparatus, and method which maintains the power flow between a battery and an inverter and the operation state of an electric vehicle in the event of failure of a bidirectional DC-DC converter connected between the battery as a power source and the inverter for operating a drive motor.

The invention discloses a high-precision load control method based on mirror image droop and virtual inertia control. Controllable loads and energy accumulation in a micro-grid are integrally controlled, load control precision is increased, purposes of the controllable loads are expanded, micro-grid dependence on energy accumulation power and capacity is relieved, energy accumulation configuration is lowered, a 'negative power source' participates in peer-to-peer control of a distributed power source during micro-grid operation, and 'general energy accumulation' participates in micro-grid emergency control under fault conditions such as island converting to grid-connection. By the method, stable micro-grid frequency is achieved, tie line power fluctuation is restrained, and accordingly safe and stable operation capability of the micro-grid is increased.

The invention relates to a power grid on-line decision-stabilizing control system and a control method based on super real-time emulation. According to the power grid on-line decision-stabilizing control system, a data processing module is arranged in a dispatching center, is used for acquiring power grid state information, and transmits power grid operating data to an on-line decision-stabilizing system, the on-line decision-stabilizing system is arranged in the dispatching center and sends a stabilizing controlling decision and overall power grid information to a stabilizing controlling device, the stabilizing controlling device is locally mounted at a transformer substation or a power station, and a data conversion and communication port is connected between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device, and is used for data communication between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device. A power grid stabilizing decision and control are carried out in real time based on the super real-time emulation, a control decision matched with actual working conditions of a power grid is obtained, a prevention and control decision and an emergency control decision are carried out simultaneously in a system, stable control is carried out on the power grid, and the stability of the power grid is effectively improved.

The invention relates to an emergency processing method of a broken touch screen of a computer system. The emergency processing method comprises the following steps of (1) detecting whether a touch screen is in failure or not by a touch control chip in real time; (2) sending an interrupt request to a computer main system by the touch control chip under the situation that the touch screen is in failure; (3) starting a touch screen failure emergency program by the computer main system after the interrupt request is received, wherein the touch screen failure emergency program can be at least used for setting the computer system into an external control mode and / or a key control mode. According to the emergency processing method disclosed by the invention, the touch screen can be detected in real time through the touch control chip, the touch screen failure emergency program can be started and can be at least used for setting the computer system into the external control mode under the situation that the touch screen is in failure, the touch screen can be at least subjected to emergency control by a user through the external control mode according to the emergency processing method when the touch screen breaks down, touch control operations such as input, data backup and data clear can be carried out, and the data loss can be avoided.

A rescue lanyard is described herein to be used with a safety harness worn by a person. The lanyard comprises a main strap having a first attachment portion for attaching the main strap to a structure and a second attachment portion for attaching the main strap to the harness, and a secondary strap secured to the main strap adjacent the first attachment portion and having a third attachment portion to be attached to the harness via an emergency descent control device. In a safety mode of operation, the first attachment portion of the main strap is attached to the harness and the second attachment portion is attached to a structure so as to retain the person wearing the harness during a fall. In a self rescue mode of operation following a fall, while the person hang from the main strap, the third attachment portion is first attached to the harness via the emergency descent control device and the main strap is then cut so as to allow the person to descent from the structure using the descending device. The emergency control device includes a rope, a rope friction controller having an attachment portion for securing the device to the harness, a rope friction controller for selectively applying friction on the rope, and a safety element for applying friction on the rope so as to prevent movement thereof in the rope friction controller in a panic mode of operation.

A driving control system mounted in a vehicle receives multiple pieces of information through a status detection module and a vehicle safety determination module thereof, performs a safety and collision analysis to predict whether a driving danger exists, when a driving danger exists, instructs an emergency control module to calculate an optimal barrier-avoiding path and send a corresponding control signal to a vehicle control module, and when no driving danger exists, instructs a normal control module to perform an adaptive algorithm according to different road conditions and driver's behavior information and send a control signal to the vehicle control module. Accordingly, the driving control system can instantly plan a barrier-avoiding path according the degree of emergency and collision danger to achieve the goal of enhancing safety and stability of the vehicle and driver in driving.

An electric retractor extracts and retracts a seat belt in response to tension in the seat belt. The electric retractor may include a spool rotatably attached to a retractor frame. A seat belt is wound on the spool. The spool is rotated by a motor via a worm gear system that permits limited axial motion of the worm, but generally prevents the motor from being back-driven by tension in the seat belt to prevent forced seat belt extraction. The gear system may also cut off power to the motor in the event of excessive seat belt tension to prevent further payout of the seat belt. A senses tension in the seat belt and activates the motor to retract or extract the seat belt from the retractor. An emergency control system may override the web guide control in response to abnormal vehicle dynamics to provide reversible pre-crash pretensioning and / or crash pretensioning.

The invention relates to the field of expansion planning and safety analysis on electrical power systems. In order to provide a systematized method and a relatively perfect assessment process for the safety assessment on a planning scheme, the technical scheme adopted by the invention is as follows: a method for assessing a safety value of a planning scheme for an electrical power system containing large-scale wind power comprises the following steps: 1, establishing a power supply-power grid unified planning model for taking account of static and dynamic safety values of the system; 2, beginning to carry out detailed operation simulation on candidate planning schemes; 3, after units are combined, carrying out safety assessment on the system time interval by time interval; 4, carrying out comprehensive safety control optimization on an contingency set by using a 'positive constraint and relaxation method' so as to obtain the optimal division of a preventive control contingency set and an emergency control contingency set; and 5, obtaining the total cost of the planning scheme, and taking the total cost as a basis for evaluating the planning scheme. The method disclosed by the invention is mainly applied to the expansion planning and safety analysis on the electrical power systems.

Emergency remote control communications systems and methods provide remote access to, activation of, deactivation of, monitoring of, communications with, and / or otherwise management of a Voice-Over Internet Protocol (VoIP) communications device (and / or another peripheral communications device) in response to an emergency communication originating from the VoIP communications device. An emergency remote control communications software product detects an emergency communications signal, and, in response, generates an emergency remote control communications signal for communication to the VoIP communications device via a communications network.

A geographical zone, which can be multi-dimensional, such as in three dimensions, can be utilized to regulate the location of a movable user within the geographical zone. A mobile device associated with a user located in a specific area of a geographical zone is in communication at least one node, which is, in turn, in communication with at least one control center. Detailed local information from the location nodes is downloaded. The nodes communicate with each other wirelessly via radio frequency (RF) using Bluetooth™ protocol. Mobile devices interact with location nodes that are in communication range. A messaging system is used to send emergency and security communications to users associated with mobile devices in particular locations.

An intelligent control system for platform screen doors is provided, which belongs to the field of automatic control technology and comprises a CMOS camera, a signal processor, a controller, and a driver. The CMOS camera collects and outputs images to the signal processor. The signal processor is used for the A / D conversion, enchantment processing and information recognition of the images, and converts the recognition results to a control command and outputs the command to the controller. The controller converts the digital control command and emergency control command to an analog control signal and outputs the analog control signal to the driver. The driver drives a mechanical servomechanism after amplification of the analog control signal, thereby controlling the opening / closing operation of the screen door. The inventive system has simple structure and high operational reliability, and can ensure the comfortable travel for passengers and safe and on-time operation of the train.

The invention relates to an integration coordination control method of the early security and stability warning, prevention and control and emergency control of large power grids and includes the following steps: various steady data and dynamic data of large power grids are gathered; the present modes are matched with serious historical fault forms in real time as the online appending presupposition fault of stable analytic calculation; the curve data is mined with area methods such as expansion after the power grid is simulated to extract the stable quantitative characteristics of a system; when the power grid has positive secure stability margins, the stability margins and relevant sensitivity analysis technology are used for calculating the limit output and load of a generator and the limit power of a stability section; when the power grid has negative secure stability margins, the prevention and control and emergency control are calculated to confirm the amount of prevention and control measures and control cost thereof as well as the amount of emergency control measures and control cost thereof; the optimum combination of the prevention and control and emergency control are automatically searched. The integration framework of the optimization and coordination of the early security and stability warning, prevention and control and emergency control is built.

The invention discloses an intelligent detection system for a tunnel power equipment. According to the invention, an on-rail tour inspection robot is in wireless communication with a background monitoring platform through an in-tunnel wireless network equipment. The on-rail tour inspection robot carries a communication device, a control device and a detection device. The control device is therein provided with a tour inspection control model and an emergency control model in advance. After the detection device detects an emergency, the control device switches from a tour inspection control mode to an emergency control model according to the emergency information. In the tour inspection control model, the control device controls a drive device of the on-rail tour inspection robot to drive the on-rail tour inspection robot for moving tour inspection on the rails in the tunnel and controls the detection device to detect a specified device, and the detection information is uploaded to the background monitoring platform through the communication device. In the emergency control mode, the control device controls the on-rail tour inspection robot to perform different actions according to the different emergency information. Tour inspection of the tunnel power equipment is realized automatically, the detection efficiency is improved and safety of workers is ensured in the maximal degree.

The invention discloses a transmission system dynamic security risk evaluating and optimizing method based on practical dynamic security field, wherein, the risk evaluating relates to influence of uncertainty for risk of node injecting power and system security control measures in computing dynamic unsafety risk by establishing the dynamic unsafety risk evaluating model based on practical dynamic security field; the optimizing method performs the risk control optimation to establish the optimum model of risk control aiming at dominant preconceiving accident collection by determining and dividing the preconceiving accident collection gamma=gamma1 and gamma2. The risk evaluating model can relate to the uncertainty of node injecting power in transmission system dynamic risk evaluating and greatly reduce computing quantity of the dynamic security risk evaluating. The dynamic risk optimizing model realizes the optimizing compution of integrated control measures aiming at the preconceiving accident in expectation operating point and security control preconceiving accident collection gamma1 before adopting control measures. The optimizing compution result can be used for guiding prevention control and emergency control decision.

A method and apparatus for controlling the flight of an aircraft in the event of an in-flight emergency is disclosed. The apparatus includes: (a) a remote flight control, located separate and apart from said aircraft, for remote flight control of said aircraft by a remote human pilot; (b) an onboard manual flight control on the aircraft for manual flight control of the aircraft by an onboard human pilot; (c) an onboard autopilot on the aircraft for automatic flight control of the aircraft; (d) a device for detecting an in-flight emergency on board the aircraft, when the onboard pilot is incapable of properly manually flying said first aircraft due to an attack upon the aircraft or its occupants, including its onboard human pilots, or due to any other incapacity of the onboard human pilots, and producing an in-flight emergency signal in response thereto; and (e) an onboard remote piloting device on the aircraft for receiving the in-flight emergency control signal and control signals from said remote flight control device and allowing the control of the aircraft by the remote human pilot and preventing flight control by any person on board the aircraft.

In a common rail operating method and system, an arrangement for controlling the rail pressure is provided with a rail pressure controller including a current control circuit for controlling a suction throttle valve operating current (i) which valve is arranged in the fuel supply line to a high pressure pump supplying high pressure fuel to the common rail. The suction valve operating current control circuit includes a preliminary control value generator which serves also as an emergency control signal generator for the control of the suction valve if an error occurs in the system at least to permit an orderly engine shutdown procedure.

The present invention provides an analysis method for an electrical power system whereby the plurality of buses are grouped into agents, family lines of agents and families of agents based on the reactive reserves depleted when the buses are loaded. Contingencies are then applied to the electrical power system and the reactive reserves are monitored and an exhaustion factor is determined for one or more family lines in one or more families. A method for selecting double outage that have no solution for each outage that has no solution when the outage is removed in small steps and an additional step has no solution. The boundary case solution is used to assess where, why, and how the contingency causes voltage instability, voltage collapse, and local blackout. Based on this information, the design of voltage rescheduling, active rescheduling, unit commitment, load shedding is determined that can be used as preventive, corrective, or emergency controls in applications such as system design and planning, operation planning, reactive and voltage management, real time control, and Special Protection System Control. Based on this information, solutions can then be applied to the political power system.

In a common rail operating method and system, an arrangement for controlling the rail pressure is provided with a rail pressure controller including a current control circuit for controlling a suction throttle valve operating current (i) which valve is arranged in the fuel supply line to a high pressure pump supplying high pressure fuel to the common rail. The suction valve operating current control circuit includes a preliminary control value generator which serves also as an emergency control signal generator for the control of the suction valve if an error occurs in the system at least to permit an orderly engine shutdown procedure.

The invention discloses a synchronous control circuit for rail-vehicle-rescue emergency braking. Normally-closed contact coupling a relay and emergency braking relays are parallelly connected into emergency-braking train-line loops of lead vehicles of rescue vehicles and failed vehicles, and are used for rebuilding the emergency-braking train-line loops after rescue trains and failed trains are coupled; meanwhile, braking isolating switches are arranged on the lead vehicles of the rescue vehicles and the failed vehicles, rescue head-and-tail relays and braking isolating relays are parallelly connected, emergency-braking-button normally-closed contact of a driver table is connected into the emergency-braking train-line loops in a series mode, braking isolating electromagnetic valves of all the vehicles are parallelly connected into an emergency train-line loop, power is supplied through the emergency train-line loop, the emergency train-line loop is controlled to control the braking isolating electromagnetic valves, and under the working condition that rescue is achieved, emergency-braking synchronous control is achieved. A control method is safe and reliable, the synchronism is accurate, the purchasing expense of a whole project is saved more than 3-million yuan, device installation space is saved, and installation space and maintaining space are guaranteed for full power vehicles and unmanned driving vehicles.

The invention discloses an online strategy optimization calculating method for electric system transient state safety and stability emergency control, and belongs to the technical field of electric system emergency control. According to the online strategy optimization calculating method for the electric system transient state safety and stability emergency control, based on a transient state safety and stability quantitative analysis theory, control performance index calculation methods of direct current system power emergency modulation, generator removal, load removal and partial power grid disconnection are proposed with control measure cost and control effects taken into consideration; according to different characteristics of safety and stability problems of transient state power angles, voltages and frequency, control measures are selected in a candidate control measure space according to control performance indexes from large to small; corresponding active power control measures are further matched according to steady state frequency estimated values after control, calculation and transient state safety and stability quantitative evaluation of the control measures are further carried out, and the control measures are increased continuously through iteration. The online strategy optimization calculating method for the electric system transient state safety and stability emergency control overcomes the defects in an existing online strategy optimization calculating method for the transient state safety and stability emergency control and meets the actual demands of the online strategy optimization calculation for the large power grid transient state safety and stability emergency control.

The invention discloses an intelligent self-healing monitoring method of extra high voltage power network, belonging to the field of electric transformer and distribution. The invention uses the self-healing monitoring method that the power network control center collects the fault information, estimates the fault point according to the action information, judges the fault point according to the visualization technology, and starts the automatic recovery project. The method solves the self-healing problem of extra high voltage power network, performs the prevention and correction control, andmakes the dispose strategy based on the information quickly, thereby avoiding the cascade trip caused by load transfer, realizing the safe and stable addition control of the power network from the entire network perspective, and replenishing the disadvantages of area and in situ emergency control measure. Aiming at the specific characteristics in the aspects of running, dispatching and managing of the extra high voltage power network, the method can collect and use the information more comprehensive, and make the dispose strategy quickly to earn the time for the avoiding of cascade trip caused by load transfer, thereby avoiding the further enlargement of fault coverage due to wrong dispose, and solving the self-healing problem of the extra high voltage power network.

The invention relates to a large-grid wide-area asynchronous control method, which belongs to the field of emergency control of power systems. The method comprises the following steps of (1): real-time state computation of a main network frame of a wide area measurement system (WAMS)-based power grid, which is to eliminate the false and retain the truth through data pre-treatment, inhibit or eliminate noises to the largest extent, and highlight the useful information of the wide area measurement system in a grid dynamic process to provide characteristic quantity for stable analysis and control; (2) real-time analysis of stability of grid power angle, which is to detect and predict asynchronous process of the system based on the synchronous phasor of the integral main power grid by combining a system analysis method, and find out an asynchronous section in space; and (3) presentation of a coordinate control strategy for asynchronous disconnection, which is to present a backup disconnection control measure when the asynchronous section deviates to the section which is not controlled by disconnection and guarantee reliable disconnection when the large-grid becomes asynchronous. According to the method, a WAMS-based wide area asynchronous emergency control is provided, the running state of the power system can be monitored and controlled in real time, possible power angle instability of the power system can be predicted, the chain reactions of large-grid resistance is guaranteed, and influences of grid accidents on national economy and people's live are avoided.

The invention belongs to the technical field of electrical power system security and stability control and is suitable for a transient security and stability emergency control system to automatically select an on-line strategy or an off-line strategy. On the basis of a transient security and stability quantitative analysis method, the invention provides the index of influence of running state change on transient security and stability for judging the adaptability of the on-line control strategy to the running state change. The invention comprises the following two parts: (1) issuance of the on-line strategy and confirmation of the effectiveness thereof, i.e. checking the security of the on-line strategy to judge whether issuing the on-line strategy to a control device, and judging the effectiveness of the issued on-line strategy constantly; and (2) selection of the on-line strategy and the off-line strategy during failure, i.e. selecting the on-line strategy when 'form characters' detected by the control device are as same as 'form characters' of the on-line strategy, the time for generating the on-line strategy is not long, and the influence degree of the running state change calculated on the basis of measured data of the control device on the transient security and stability meets the requirement; and otherwise, selecting the off-line strategy.

The invention, which belongs to the technical field of the power system and automation realization, discloses a phase modifier emergency control method and system capable of suppressing a direct-current consequential commutation failure. The method comprises: a direct-current commutation failure information sub station sends direct-current commutation failure information to an emergency control master station; the emergency control master station obtains bus voltage information of a direct-current inverter station with a commutation failure and all phase modifier operation information in a grid; the emergency control master station matches a proper emergency control measure from a control strategy table and sends the measure to a phase modifier control execution station; and the phase modifier control execution station sends an excitation reference voltage modification instruction and a duration time instruction to a phase modifier excitation system to complete phase modifier emergency control. According to the invention, because participation in grid emergency control is realized by using the phase modifier, a direct-current consequential commutation failure probability of a multi-direct-current feed-in receiving end is reduced, interlocking of the direct current due to multi-times commutation failures is prevented, and the large-area power outage caused by multi-direct-current interlocking can be prevented.

The invention discloses a highway intelligent isolation system, which can make traffic ability on the road optimal and decrease traffic jam according to increase or decrease road numbers in special direction on the special road. The technology scheme is that isolation system comprises isolation fence, central control system and emergency control system. Isolation fence with driving equipment can move automatically and in arbitrary direction by the command received from central and emergency control systems with wireless communication. Emergency control system, with wireless communication can control isolation fence moving directly and obtain the status of isolation fence, and can communicate with central control system and obtain the command from central control system to move the isolation fence. Central control system control isolation fence moving and obtain the status of fence moving by communication net in wireless remote control method, or communicate with emergency control system and control isolation fence moving. The invention is applied in highway system.

The invention provides a power grid AC / DC cooperation control method after a direct current block fault. The method comprises steps that characteristic quantity of a power grid is extracted based on power grid operating data obtained by a (Wide Area Measurement System), and the power limit of an interconnection tie of the regional power grid during static and stable operating is calculated; the overshoot of the power fluctuation peak value of the interconnection tie is calculated according to disturbance information which happens to the regional power grid; a load shedding quantification control measure needing to be taken is calculated based on the interconnection tie power peak value fluctuating theory and the unbalanced power redistribution theory. The method provided by the invention utilizes direct current power emergency control, so that coordination and cooperation of control measures between a large capacity direct current receiving end Central China power grid ultrahigh voltage alternating current system and a direct current system, thereby replacing or reducing the load shedding quantity of the Central China power grid, effectively improving the safety and operation efficiency of the power grid, and alleviating pressure that the imbalance impact power of the power grid is wide in influence range, the load shedding quantity is large and the like.

An inter-vehicle management apparatus acquires scene information about a driving scene of a host vehicle, estimates the driving scene based on the scene information acquired, acquires behavior information about a driving behavior of the host vehicle driven by the user, determines a driving risk of the host vehicle driven by the user, based on the driving scene estimated and on the behavior information acquired, and controls a presentation of assist information by an information presentation unit in order to prompt the user to address the driving risk. When the driving scene estimated represents a follow-up traveling state of the host vehicle following the preceding vehicle, the assist information to be presented by the information presentation unit is selected based on a magnitude of the driving risk determined before the operation by an emergency control unit.

The invention provides a fast and reliable congestion control strategy (FRUDP) which is based on a user datagram protocol (UDP) of a transport layer, and is designed to guarantee an information flow to run high-efficiently and stably in a high speed network environment between an application layer and the transport layer on the basis that network address translator (NAT) equipment can be penetrated through and transportation stability are guaranteed. The FRUDP is mainly formed by an estimating module, a window control module, a data processing model and an emergency control module, wherein the estimating module is arranged at a sending end, does not need to modify a network layer protocol, estimates transmission paths and propagation delay through collaboration according to the local information capable of being obtained by the sending end, and accurately estimates the actual number of the queued packages remaining in periodic line buffer areas in each process. The window control module designs congestion control strategies in a collaboration mode at the sending end, taking the queue size of a bottleneck periodic line buffer area as a balance point, actively controls the queuing length of periodic line buffer areas, and actively prevents the overflow of the queues of the buffer areas and congestion phenomena from occurring. The data processing module determines which groups to be sent from a candidate pool. The emergency control module determines when to send the groups.