54results about How to "Eliminate monitoring blind spots" patented technology

The invention provides a sea-air area stereo perception prevention and control system. The system includes an ad-hoc network unattended target recognition reconnaissance and surveillance system, an air and sea area intelligent command and dispatching system and the structure of a sea and air area management and control platform based on massive data fusion and analysis which are in mutual communication. A problem of incapability in comprehensively monitoring larger blind areas of automatic screening of cooperation targets and non-cooperative targets in the sea and air monitoring areas due to the nighttime, high sea conditions, rain or fog severe weather conditions and other environmental factors, of intelligent detection, tracking and early warning of non-cooperative abnormal targets, andof sea surface, sea and air, underwater, island and terrestrial harsh application scenarios in the prior art is solved, real-time information display on a chart is realized, the target situation is generated, data fusion and information research and determination are conducted, real-time monitoring and early warning of the detection targets are performed, the three-dimensional early warning detection network is jointly built with shore-based, air and space systems, and blind spots are eliminated.

The invention discloses an online monitoring system for the insulation state of a substation DC system. The system comprises multiple sets of DC leakage current detection devices and a signal merger and diagnosis unit. The DC leakage current detection devices are respectively used for detecting DC leakage current of all branches; each set of DC leakage current detection devices is provided with at least two DC leakage current detection devices which are used for detecting DC leakage current at different positions on the same branch respectively. The signal merger and diagnosis unit is used for detecting the voltage to earth of positive and negative buses and further wirelessly connected with all the DC leakage current detection devices to receive DC leakage current data transmitted by all the DC leakage current detection devices. The signal merger and diagnosis unit judges whether an insulation failure occurs or not and determines the position where the insulation failure occurs according to the detected voltage to earth of the positive and negative buses and the received DC leakage current data. The invention further discloses an online diagnosis method for the insulation state of the substation DC system.

The present invention aims at solving the problems of train identification loss which causes automatic invalid of operation control and unable to automatically distinguish train block in existing urban rail train operation. The present invention invents a space-time two-dimension train tracking method and consists of the following six steps: train positioning, train inertial distinguishing, stepping distinguishing, system dispatching, train distinguishing deletion and real-time monitoring; the present invention solves the problem of accuracy and promptness in the operation process of the train and orderly dispatches the whole system, timely eliminates train fake identification number, eliminates train monitoring blind area and automatically decides train block accidents. Therefore, the present invention is suitable to be applied in train operation tracking in any block mode in urban rail traffic.

The invention relates to an optimized configuration method of a voltage sag monitoring node. The method comprises: obtaining a critical fault resistor matrix based on a power grid topology and a system parameter; according to a fault resistor random distribution characteristic and the critical fault resistor matrix, establishing an inequality constraint; and obtaining an optimal monitoring node configuration scheme meeting the inequality constraint by targeting monitoring node number minimization. According to the method, a fault resistor of a short-circuit fault point is introduced into a monitoring node optimization configuration model, thereby eliminating a monitoring dead zone of the voltage sag.

The invention discloses a method for finely and accurately comparing line losses based on a smart-grid technology, and belongs to the field of measurement. The method comprises electric quantity settlement of a user and electricity consumption information acquisition, and is characterized by comprising the following steps of: constructing a unified distributed analysis system for finely and accurately comparing the line losses based on .NET Remoting software system architecture; adopting corresponding electric quantity settlement and electricity consumption information acquisition modes aiming at different types of users to form line loss statistic subsystems aiming at the different types of users; performing data or information transmission between each line loss statistic subsystem and a unified line loss management application platform by adopting a shared database interface form, and a mode of directly importing data based on an integrated data processing (IDP) data access interface of Web Service or an Excel file; realizing acquisition, conversion, cleaning and warehousing of remote heterogeneous data, and establishing a data dynamic seamless interconnection mechanism and an information real-time fast interaction mechanism; and finally realizing the fine comparison of the line losses to ensure that user side information is visible and controllable. The method can be widely used in the field of operation/management of an electric power system.

The invention discloses a voltage sag monitoring point optimal configuration method based on minimum amplitude search. The method comprises the following steps: collecting power grid parameters, regarding a fault point as a virtual node, and calculating voltage, mutual impedance and self-impedance before the fault of the virtual node, to form a system impedance matrix containing the virtual node;searching the minimum voltage sag amplitude of each node when any line has a short-circuit fault and the fault position changes on the line by using a golden section method, and traversing the whole network, to form a minimum voltage sag amplitude matrix; comparing the minimum voltage sag amplitude with a voltage threshold, to form voltage sag observable domain matrixes under different fault types, and calculating an observable domain matrix union under each fault type, to obtain a worst voltage sag observable domain matrix; and obtaining the optimal configuration method of the voltage sag monitoring point by taking the minimum number of the monitoring nodes as a target and taking the full observability of the whole network voltage sag as a constraint. The voltage sag monitoring blind areais eliminated, and the calculation efficiency is improved.

The invention provides a video monitoring method fusing position tracking. The video monitoring method fusing position tracking comprises the following steps of: 1) calculating the track to be moved, of a target by virtue of the target accurate position and the moving direction provided by an RFID positioning system; 2) communicating between a browser and a Web server by a comet long connection mechanism; 3) monitoring the target position by the Web server always through an RFID positioning server, and pushing the moving track information of the target in a map; 4) when the target is transferred to a video monitoring area from a map area, updating the position to the Web server by the RFID positioning server; when the target is transferred to the map area from the video monitoring area, updating the position to the Web server by the RFID positioning server. The invention further provides a video monitoring system fusing position tracking. The method and the system provided by the invention are capable of effectively eliminating monitoring blind areas, convenient to search, capable of realizing seamless switching, and capable of effectively avoiding screen jam and blank screen.

The invention discloses a whole-course tracing safety management system based on the minimum packing unit of vaccines. The system comprises a vaccine encoding module, a data collecting module, a data managing module, a vaccine abnormity locking module and a user terminal platform; the vaccine encoding module, the data collecting module, the vaccine abnormity locking module and the user terminal platform are connected with the data management module; the vaccine encoding module encodes the vaccines at the minimum packing unit, and uploads encoding information to the data management module, the data collecting module collects temperature data and GPS position data of the vaccines during purchasing, transporting, storing and distributing in real time, and sends the obtained data to the data management module, and the data management module processes the obtained data and locks the abnormal vaccines in cooperation with the vaccine abnormity locking module. With the system, the quality of the vaccines in all circulation steps is monitored and traced in real time, and the comprehensiveness, real-time performance and traceability of safety in quality of the vaccines are guaranteed.

The invention discloses a system and a method for mining intelligent individual soldier operation and support, and an intelligent tour inspection method. The operation and support system comprises a cap subsystem, a lamp subsystem and a cloud control center subsystem. The cap subsystem and the lamp subsystem comprehensively use camera and various sensors carried on the cap subsystem and the lamp subsystem to realize communication, positioning, observation, sensing, scheduling, life monitoring and other functions. The cap subsystem and the lamp subsystem are wirelessly connected by Bluetooth, and after data summarization, data is wirelessly transmitted to the cloud control center subsystem. After the cloud control center subsystem performs data analysis and processing, the system sends backa control command and alarm information. Through the technical scheme of the invention, continuity, accuracy and real-time performance of positions, life states and surrounding environment monitoringof borehole operation personnel are guaranteed, and a monitoring blind zone is basically eliminated, and labor productivity and security guarantee degree are improved.

The invention relates to a particulate matter concentration prediction method and device, a storage medium and electronic equipment. The method comprises the steps of acquiring an aerosol optical thickness AOD remote sensing image map at the current moment in a target area; obtaining a target aerosol optical thickness from the AOD remote sensing image map, the target aerosol optical thickness being an aerosol optical thickness of a corresponding pixel of a target to-be-measured position in a target area in the AOD remote sensing image map; obtaining target data of a target environment influence factor at a target to-be-measured position; and taking the target aerosol optical thickness and the target data as the input of a pre-trained particulate matter concentration prediction model to obtain the particulate matter concentration at the target to-be-measured position. Therefore, the continuous spatial distribution of the near-surface particulate matter concentration can be accurately estimated by simultaneously fusing the ground air quality monitoring data, the satellite remote sensing data and the target environment influence factor data, so that a reliable data basis can be provided for comprehensively treating environmental problems.

The invention provides an omnibearing blind-zone-free surveillance and monitoring security device. The omnibearing blind-zone-free surveillance and monitoring security device comprises a main camera, N auxiliary cameras and a fixing disc, wherein a camera lens of the main camera faces downwards, the N auxiliary cameras are arranged outside the side wall of the main camera and surround the main camera, the fixing disc is arranged at the upper end of the main camera, a microphone which is connected to an audio frequency amplifier integrated circuit is arranged in the main camera, a microphone hole and a multiphase signal jack are formed in the outer wall of the main camera, the microphone is arranged in the microphone hole, the video output end of the main camera, the video output ends of the auxiliary cameras and the audio output end of the audio frequency amplifier integrated circuit are all electrically connected with the multiphase signal jack, fixing holes are formed in the fixing disc, and N is a natural number which is not smaller than one. The omnibearing blind-zone-free surveillance and monitoring security device has the advantages that the design is scientific, no blind zone exists, sounds can be monitored, and the direction can be adjusted easily.

The invention provides a video monitoring method, a video monitoring device, and video monitoring equipment. The video monitoring method comprises the following steps: collecting wireless radio frequency signals transmitted in a monitoring site; monitoring, according to the wireless radio frequency signals, whether there is a visiting object entering the monitoring site; when detecting that thereis a visiting object entering the monitoring site, determining orientation information of the visiting object based on the wireless radio frequency signals; and controlling and bearing pan-tilt rotation of a camera according to the orientation information to shoot the visiting object. The video monitoring method, the video monitoring device, and the video monitoring equipment provided by the invention can realize omnidirectional and dead angle-free monitoring of the monitoring site by using the wireless radio frequency signals, and can control the pan-tilt rotation at the first time to shoot the visiting object when finding the visiting object by using the wireless radio frequency signals, which prevents from omitting monitoring pictures of any visiting object, and eliminates blind spots in time and space.

The invention discloses a signal collecting and monitoring system based on a wireless node network. A field terminal subsystem comprises a plurality of technological parameter collecting devices and a plurality of video collecting devices, and technological parameter data and video image data in a coal bed gas production well are collected; a wireless backbone network subsystem comprises a plurality of wireless receiving-dispatching node devices and a wireless receiving-dispatching root node device, all the wireless receiving-dispatching node devices are connected with the technological parameter collecting devices and the video collecting devices arranged in the coal bed gas production well, receive the technological parameter data collected by the technological parameter collecting devices and the video image data collected by the video collecting devices, and send the received technological parameter data and the received video image data to the wireless receiving-dispatching root node device, wherein when a wireless communication link between a certain wireless receiving-dispatching node device and the wireless receiving-dispatching root node device is blocked, the wireless receiving-dispatching node device carries out wireless communication with the wireless receiving-dispatching root node device through the adjacent wireless receiving-dispatching node device.

The invention relates to an intelligent well lid monitoring and management system. The system comprises an intelligent well lid terminal, an information transmission module and an intelligent well lidmonitoring platform, the information transmission module is used for networking the intelligent well lid terminal and the intelligent well lid monitoring platform, so that the intelligent well lid terminal and the intelligent well lid monitoring platform can communicate with each other; and the intelligent well lid monitoring platform is used for monitoring the state of the intelligent well lid terminal, the inner side area of the intelligent well lid terminal and the external environment of the intelligent well lid terminal in real time, giving an alarm for abnormal conditions, reminding a preset event and classifying information such as the property right of the intelligent well lid terminal. According to the system, various information of the urban well lid and the environment near thewell mouth can be monitored in real time, workers can be helped to monitor the safety state, the locking state and the personnel access condition of the well lid in real time remotely, and the workers can be helped to complete the inspection task conveniently and efficiently.

The invention discloses a distribution area intelligent operation and maintenance device and an operating method thereof. The distribution area intelligent operation and maintenance device comprises distribution monitoring terminals arranged on each distribution box and intelligent control terminals arranged on each low-voltage branch line and each user meter box, wherein the distribution monitoring terminal comprises a first central processing unit, a first power supply module, a first short message sending and receiving module, a first wireless communication module, a first voltage and current acquisition circuit and temperature sensors which are arranged at the surface of each incoming cable and the surface of each outgoing cable inside each distribution box, and the intelligent controlterminal comprises a microprocessor, a second power supply module, a second short message sending and receiving module, a second wireless communication module and a second voltage and current acquisition circuit, and the first wireless communication modules and the second wireless communication module are wirelessly connected with a power grid monitoring center through a wireless network. The distribution area intelligent operation and maintenance device performs monitoring on the public transformer side, the line side and the client, eliminates a monitoring blind area, can send an early warning short message to a mobile phone of the maintenance personnel and improves the early warning information release speed.

The invention discloses a coastal atmosphere combined pollution sky-ground integrated monitoring early-warning system. The system comprises the following steps of (1) establishing multi-platform gas particle monitoring instrument atmosphere sample feeding system and a low-loss desalting and dehumidifying integrated sampling system under the costal and high-altitude multi-cloud unique environment;(2) developing offshore area atmosphere boundary layer pollutant concentration and three-dimensional meteorological element vertical sounding; (3) performing integrated monitoring on large-load airship, unmanned aerial and onboard atmospheric physical and chemical parameters, and optimizing a test platform; (4) monitoring vehicle-mounted and shipborne high-precision conventional meteorological parameters, physical parameters of cloud, main pollution gas and particles; (5) establishing a multiplatform integrated monitoring command and decision-making platform; and (6) establishing a multiplatform atmospheric monitoring data integration analysis and processing system to obtain the costal atmospheric combined pollution sky-ground integrated monitoring early-warning system. The multiplatform system disclosed by the invention is high in integration degree, and plays a demonstration role in the multi-scale and multiplatform fused sky-ground integrated monitoring technology and test organization.

The invention relates to an intelligent distributed self-healing control method based on a fault at a 0.4kV side in a distribution substation. The method is characterized by comprising the following steps: fault type judgment is carried out when power failure of a bus is detected, and when the fault is a low-voltage bus fault, the self-healing function is locked, and the fault is handled manually; when the fault is a low-voltage outgoing line protection refusal fault, an outgoing line switch is switched off, and a main switch is reclosed; when the fault is a low-voltage line fault, the main switch is reclosed; and when the fault is another fault, a bus coupler carries out self-healing. Automatic fault location, fault isolation, recovery of power supply to non-fault regions, and other functions at the 0.4kV side in a distribution substation are achieved, blind areas in 0.4 kV equipment monitoring are eliminated, the reliability of power supply is further improved, the level of integrated operation of distribution automation is improved in an overall manner, the equipment utilization rate is improved, power loss is reduced, and the electricity selling loss is lowered for power supply enterprises.

The invention discloses a power cable radar external damage protection system and an external damage protection method thereof, and belongs to the field of power system cable protection. The power cable radar external damage protection system comprises: a radar, a linkage video camera, an acousto-optic alarm unit, a monitoring host and a plurality of communication optical cables, wherein the radar, the acousto-optic alarm unit, the linkage video camera and the monitoring host are electrically connected through the communication optical cables; the radar, the linkage video camera, and the acousto-optic alarm unit are mounted on the same pole; and an image comparison program, a relative position calculation program, an automatic control program, and a manual control program are stored in themonitoring host. The power cable radar external damage protection system can reduces manpower, improves the efficiency of monitoring and preventing behaviors such as barbaric construction and thefts,promptly warns and stops such illegal activities, and monitors and records such behaviors so as to provide evidence.