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189results about How to "Guaranteed timeliness" patented technology

Method for detecting, recovering and controlling for independence trouble during orbital transfer course

An autonomous fault detection recovery control method during the orbital transfer includes (1) the autonomous fault detection: firstly, setting fault judgment conditions at a star acquisition stage, an inertia attitude adjusting stage, a star directional stage and a rail control directional stage of an autonomous orbital transfer method; introducing judgment conditions during the orbital transfer process; (2) the autonomous recovery control: when a satellite autonomously detects out faults and enters the recovery control, the autonomous control satellite on the star enters a velocity damping stage; when the attitude angular velocity damping of the satellite is successful, the satellite autonomously enters the star acquisition stage; the rail control process is reinstalled, which means that the starting time of every stage during the subsequent orbital transfer process; the satellite transfers into the corresponding working stage to recover the orbital control according to the reinstalled time. The method of the invention improves the reliability of the orbital transfer, ensures the accurate implementation of the orbital control in time and can better ensure the realization of the only window for the orbital control.
Owner:BEIJING INST OF CONTROL ENG

Method for preventing network attack performed by using legal data or tampering legal data

The invention discloses a method for preventing a network attack performed by using legal data or tampering the legal data. A timestamp, an unrepeated random number and an appointed salt value are added into requested service data, a hash algorithm is performed on the above data to acquire a hash value, and a service terminal uploads both the above data and the service data to a server while accessing a cloud; a cloud signature verification module verifies whether the timestamp and the hash value accord with signature verification, if yes, the access data, and the timestamp, unrepeated randomnumber and salt value, appointed by the cloud and the terminal, uploaded by the service terminal are subjected to the hash algorithm to acquire the hash value, and then the acquired hash value is compared with the hash value uploaded by the service terminal, if the two hash values are consistent, the verification is passed, the subsequent work can be performed, and the hash value uploaded by the service terminal in this time is cached for being compared with the hash value accessed latterly, and if the above two hash values are inconsistent, a service request is rejected. According to the method provided by the invention, the situation that the normal access is affected due to the fact that the server resources are illegally occupied can be avoided, and thus the purpose of protecting network and server resources is achieved.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD

A method and a device for realizing cross-gateway Oracle database synchronization based on CMSP

InactiveCN109325072ATroubleshoot cross-gatekeeper synchronization issuesGuaranteed timelinessDatabase distribution/replicationOracle databaseMessage queue
The invention provides a method for realizing cross-gateway Oracle database synchronization based on CMSP, belonging to the technical field of cross-gateway data synchronization, The method is based on Oracle database and CMSP, including an intranet Oracle database, an outer-net Oracle databse, a first message queue, a second message queue and an network gate, and comprises the following steps: collecting the information of Oracle database in the external network and storing the information in the form of message to the first message queue; A first conversion module is added between the firstmessage queue and the gateway, and a second conversion module is added between the second message queue and the gateway. By utilizing the file exchange function of the gateway, the messages of the first message queue are transmitted to the second message queue through the first conversion module and the second conversion module in an orderly and real-time manner. The intranet Oracle database orderly obtains the collected information of the extranet Oracle database from the second message queue. The method realizes the cross-gateway synchronization of the Oracle database, and ensures the timeliness and efficiency of the Oracle database. The invention also protects a device for realizing cross-gateway Oracle database synchronization based on CMSP.
Owner:INSPUR QILU SOFTWARE IND

Acquisition system of cathode protection data of buried pipeline

ActiveCN104928686AGuaranteed timelinessSatisfied with ease of operation and ease of useManagement levelPower flow
The invention discloses an acquisition system of cathode protection data of a buried pipeline. The acquisition system comprises one or more data acquiring and storing devices, and a data analyzing and early-warning device, wherein the data acquiring and storing devices are in communication connection with the data analyzing and early-warning device through a network; the data acquiring and storing devices acquire the cathode protection data of the buried pipeline; after the acquired cathode protection data of the buried pipeline is processed and stored, the data acquiring and storing devices transmit the cathode protection data of the buried pipeline to the data analyzing and early-warning device; the data analyzing and early-warning device receives the cathode protection data of the buried pipeline, which is transmitted by the data acquiring and storing devices, and performs early-warning analysis; early warning is performed according to the result of the early-warning analysis. The acquisition system disclosed by the invention realizes acquisition and monitoring, and centralized supervision and management of the stray current and the cathode protection data of the buried pipeline, so that the timeliness, the reliability and the authenticity of the stray current and the cathode protection data are guaranteed; besides, corresponding manpower resources are saved, and the operation management level of stray current protection and cathode protection for the pipelines are effectively improved.
Owner:CHINA PETROLEUM & CHEM CORP +1

On-line judgment method for capacity of backup storage battery

The invention discloses an on-line judgment method for capacity of a backup storage battery. The prior storage battery capacity measuring technology is lagged. The on-line judgment method for the capacity of the backup storage battery comprises the following steps: obtaining a corresponding relationship between the internal resistance and the capacity of the storage battery through actual measurement, setting the internal resistance of the battery obtained according to the capacity of the storage battery from the corresponding relationship as R1, setting the internal resistance of the storagebattery according to the actual measurement as R2, and calculating a reference value R0 of the internal resistance according to the following formula: R0=omega R1 + (1-omega) R2, wherein in the formula, the omega is a weighting coefficient, the measured current internal resistance of the storage battery correspondingly searched from a graph obtained through the actual measurement is Ri, then the percentage of delta R is equal to (Ri-R0)/R0, and the current capacity range of the storage battery can be determined by a corresponding relationship table of the actual measurement according to the numerical value of the percentage of delta R. The method is used for on-line measurement for the capacity of the storage battery.
Owner:哈尔滨龙易电气有限公司

Overwater emergency rescue device of unmanned aerial vehicle

InactiveCN108248865AGuaranteed timelinessHigh delivery accuracyAircraft lightsLaunching weaponsEmergency rescueBuoy
The invention provides an overwater emergency rescue device of an unmanned aerial vehicle. The device includes a putting control mechanism, a putting bracket, dehooking devices, life buoys, ropes andan LED searchlight; the putting control mechanism comprises a remote control receiver, a steering engine, a camera and a wireless image sending system; the remote control receiver and the camera are arranged on the putting bracket, the camera is linked with the wireless image sending system, and the remote control receiver is linked with the input end of the steering engine and controls the dehooking devices to be opened through the steering engine to put down the life buoys; the putting bracket is installed on the bottom of the unmanned aerial vehicle and consists of a bracket cross girder and a bracket vertical girder, the dehooking devices are arranged on the bracket cross girder and connected with the life buoys through the ropes, and the life buoys sleeve the bracket vertical girder.By loading the device on the unmanned aerial vehicle, fast arrival to a rescue scene can be achieved, rescue workers can accurately put down the life buoys according to images photographed by the camera, the accuracy of putting the life buoys is high, and timely rescue is achieved.
Owner:CHENGDU CAIZHI SHENGYOU TECH LLC

Mini fire station intelligent dispatching management system and method

The invention discloses a mini fire station intelligent dispatching management system. The system comprises a division warning-receiving information distribution platform, a group early-warning processing platform, street office dispatching platforms and mini fire station sites. The mini fire station intelligent dispatching management method comprises the following steps: accessing warning situation information, and distributing the warning situation information to the group early-warning processing platform; according to the received warning situation information, searching the street office dispatching platforms and the mini fire station sites within an warning situation position preset radium, and distributing the warning situation information; dispatching mini fire station personnel on duty in a governed district to an warning situation center rapidly; and dispatching fire-fighting personnel and equipment through dispatching information, and giving a feedback. Accurate positioning for a warning situation, disposal plan, command dispatching, equipment information recording and other operation are visually completed, real-time communication, the command dispatching, on-site feedback and water source feedback can be performed with frontline firemen, timeliness and effectiveness of information are guaranteed, and warning and dangerous situation control efficiency is greatly improved.
Owner:SICHUAN FANGSHENG JINRUI INFORMATION TECH

Electric-dazzling prevention device and method of bidirectional zero-clearance conversion current based on self-adaption

The invention provides an electric-dazzling prevention device and an electric-dazzling prevention method of bidirectional zero-clearance conversion current based on self-adaption. The electric-dazzling prevention device comprises a mains power voltage amplitude detection sampling circuit, a 220V power grid voltage current phase sampling circuit, a rectification module, a direct-current voltage reduction module circuit, a singlechip main control unit, a power supply module, a high-frequency transformer output circuit, a driving circuit, a bidirectional triode thyristor zero-clearance conversion current switching main circuit and a load voltage current detection circuit. According to the electric-dazzling prevention device, an alternative-current sampling technique is adopted to sample a power grid sinusoidal voltage amplitude value and a voltage current phase position, negative phase voltage is converted into positive phase voltage, and the amplitude value is correspondingly reduced to be a range that a singlechip main control unit can endure. Due to the adoption of the bidirectional triode thyristor zero-clearance conversion current structure based on self-adaption, the situation of current cutoff is well avoided in a smooth follow current mode, and the switching reliability is improved. As a bypass type structure is adopted to access a relay to the circuit, fault points are reduced, moreover, the service life of a triode thyristor is prolonged.
Owner:NORTHEASTERN UNIV +1

Drowning prevention system, swimming pool, method and teaching method

PendingCN106948622AGuaranteed timelinessOvercome the influence of environment and peopleCo-operative working arrangementsGymnasiumEmbedded systemIntegrated systems
The invention provides a drowning prevention system, swimming pool, method and teaching method. The drowning prevention system is arranged in the swimming pool and comprises a plurality of first wireless signal transceivers, one or more wearable devices with second wireless signal transceivers, a control terminal and an audio broadcast device. The drowning prevention system, swimming pool, method and teaching method has the beneficial effects that multiple drowning judgment logic is achieved, and accurate drowning information can be provided under a complex environment, so that the timeliness and reliability of rescue are guaranteed; assembly modules can operate in an integrated systematization mode and also can operate and work independently, and it is guaranteed that when any functional module unit loses efficacy, drowning judgment and position tracing of a swimmer are not affected, so that the system is safer and more reliable; and each function module provides the position basis for the controller system, and then the controller system obtains the precise position and the drowning judgment according to logical calculus, so that the phenomena of position drifting and a system drowning judgment error caused by the external environment influence are overcome, and accurate positioning can be realized at any time.
Owner:SHANGHAI JIYE INTERNET OF THINGS TECH CO LTD

Terminal electromagnetic radiation detection method, apparatus and terminal

The embodiments of the invention disclose a terminal electromagnetic radiation detection method, apparatus and terminal. The method herein uses a capacitive touch screen which is disposed in a terminal to set a non-shielding region for sensing terminal electromagnetic radiation on the basis of the fact that electromagnetic wave often affects the capacitance of a capacitor; then compares and analyzes capacitor detection values of the capacitive touch screen, and if the capacitor detection value is smaller than a touch operation threshold value, which means the capacitor detection value meets preset conditions for an early warning of terminal electromagnetic radiation, then a corresponding early warning alert operation is executed so as to alert a user to use the terminal properly. According to the embodiments of the invention, by innovating current capacitive touch screens, the method herein can directly detect electromagnetic radiation of the current terminal and the actual electromagnetic radiation of the ambient environment on the current terminal, and can increase the accuracy in detecting terminal radiation; and based on the corresponding relation between the detected capacitance and the safe threshold of preset electromagnetic radiation amount, fast implements early warning operation, obviates the need for complex data calculation, and can ensure in-timeness of radiation early warning.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD

Active prevention and control method and system for highway traffic accident scene risk

ActiveCN113066287AReduce the probability of secondary accidentsGuaranteed timelinessDetection of traffic movementAnti-collision systemsIncident siteReal-time computing
The invention provides an active prevention and control method for highway traffic accident site risk. The method can give an alarm in advance, prevent vehicles from intruding into an accident site, give a more targeted warning method, and greatly reduce the occurrence probability of secondary accidents. According to the technical scheme of the invention, the method comprises the following steps: predicating the risk of a secondary accident in an accident scene based on the traffic flow risk pre-judgment model; calculating to obtain a threshold value corresponding to the traffic flow characteristic element data through historical traffic data of the traffic flow of the road section where the accident scene is located, and training a traffic flow risk pre-judgment model through the threshold value corresponding to the traffic flow characteristic element data; acquiring environment element data and traffic flow characteristic element data of an accident scene, and inputting the data into a trained traffic flow risk pre-judgment model for risk pre-judgment; implementing different early warning measures according to different risk levels, and generating the method on a more targeted warning method. Meanwhile, the invention further discloses an active prevention and control system for the highway traffic accident site risk.
Owner:TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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