173results about How to "Improve monitoring reliability" patented technology

The invention provides a transportation vehicle management system and a management method of the system. A data acquisition device is used for performing data acquisition on transportation vehicles, obtaining vehicle information and sending the vehicle information to a management and control device. When the management and control device is in a preset operation time period at the current time, whether the corresponding transportation vehicles are located within a preset operation range or not is judged according to position data of the vehicles, and if not, a lifting forbidding command is sent to a limiting device. After the limiting device receives the lifting forbidding command, the transportation vehicles are forbidden to perform lifting operation. When the management and control device is in the preset operation time period at the current time, the positions of the vehicles are judged according to the acquired position data of the vehicles, if the transportation vehicles are not located in the operation range, the transportation vehicles are forbidden to perform lifting operation, pollution to the environment can be effectively avoided in the transportation process, and compared with a traditional transportation vehicle management method, monitoring reliability is improved.

The present invention provides an X-ray CT apparatus which realizes an improvement in timing control on transition to an actual scan for contrast agent synchronous imaging and its reliability, and an improvement in reduction in X-ray exposure. The X-ray CT apparatus includes an X-ray source, an X-ray detector disposed so as to be opposite to the X-ray source with a subject implanted with a contrast agent being interposed therebetween, a contrast agent synchronous imaging device which performs acquisition of projection data upon the start of the actual scan for the contrast agent synchronous photography while relative operations between the subject and the X-ray source, and the X-ray detector are being accelerated in a predetermined direction, and image reconstructing device which reconstructs a tomographic image, based on the projection data.

To provide an optical filter switching device for a camera in which a clear image can always be obtained during the day and at night.

In a cameral in which an image is formed on an image pick-up element (2) through a lens (1a) provided on a camera body (1) and is converted into an electric signal through the image pick-up element (2), thereby obtaining an image signal, optical filter switching means (3) for switching optical filters (3a) and (3b) depending on a level of the image signal is provided on a front surface of the image pick-up element (2) and a clear image can always be obtained during the day and at night. Therefore, in the case in which such a camera is used for a surveillance camera, the reliability of a monitoring system can be enhanced.

The invention provides an unmanned aerial vehicle monitoring system for monitoring floating objects in water. The system comprises a UAV (unmanned aerial vehicle) cruise module and a ground monitoring processing module. By using the UAV cruise module to carry out monitoring, most water areas can be reached, the implementation difficulty of monitoring is small, a UAV does not carry monitoring personnel, the UAV cruise module reaches an observation point in the air, the disadvantages of power safety reliability and the interference of water area velocity and water flow direction by using an observation ship are overcome, the possibility of accidents is little, the reliability and safety of monitoring are improved, the floating objects in a large water area can be monitored in a short time, the monitoring efficiency is improved, a lot of manpower and resources are saved, the energy consumption of monitoring personnel is reduced, a monitoring area and a water area floating object area can be accurately calculated, the density of the water area floating objects is accurately calculated, and the analysis decision and further measures are facilitated according to provided detailed monitoring data.

The invention discloses a fire extinguishing system with fire extinguishing medium leakage monitoring function and a fire extinguishing medium leakage monitoring method; by collecting of the state parameters of a fire extinguishing medium of each fire extinguishing device in the fire extinguishing system, whether a fire extinguishing medium leakage occurs can be judged according to the state parameters of the fire extinguishing device, when the fire extinguishing medium leakage occurs, an alarm prompt is sent out, leakage information of the fire extinguishing device can be obtained according to the state parameters, and the obtained leakage information is sent to a mobile terminal for query and remote alarm prompt, sent to a remote monitoring platform for query and system maintenance management use. A fire extinguishing medium leakage monitoring device, the remote monitoring platform and the mobile terminal cooperate with each other, so that fire extinguishing medium leakage on-site monitoring alarm function can be realized, remote alarm and maintenance management can be realized by the remote monitoring platform, and 24 hours of uninterrupted monitoring can be realized without sampling interval and staff intervention.

The invention relates to a video content distribution quality monitoring system and a monitoring method therefor. A configuration management server sends a monitoring task to each monitoring node server; the monitoring node server monitors a corresponding content delivery network (CDN) node according to the monitoring task, acquires a monitoring result and sends the monitoring result to the configuration management server; each CDN node is monitored by at least two monitoring node servers; and the configuration management server receives monitoring results returned by all the monitoring node servers, analyzes the monitoring results and generates warning information so as to be displayed. The monitoring node servers are in cloud service distributed deployment, and at least two monitoring node servers monitor the same CDN node, namely, one CDN node is covered by at least two monitoring nodes, so that the monitoring quality and monitoring comprehensiveness of the CDN node can be guaranteed, and the monitoring reliability is improved.

An elevator has a control unit, a bus, a first microprocessor and at least a second microprocessor, which microprocessors are associated with a bus junction and which are connected by the bus with the control unit. The control unit communicates an instruction by the bus to the second microprocessor to interrupt a signal transmission to the first microprocessor so that the first microprocessor transmits a status message to the control unit.

The invention discloses a road vehicle type identification method and a system thereof, belonging to the technical field of identification. The method comprises the steps: a distance measuring deviceis arranged above the driveway of the road; the distance measuring device transmits distance measuring signals to the driveway according to a certain frequency to monitor the vehicle passing through the driveway, and a monitoring device obtains a plurality of monitoring points with distance change by monitoring under the influence of the passed vehicle appearance; and the appearance features of the vehicle passing by are formed by the obtained monitoring points, and the formed appearance features of the vehicle and the stored basic appearance features of all the types of the vehicles are matched so as to identify the type of the vehicle passing by. The vehicle type identification method has higher monitoring reliability, can comparably accurately identify the type of the vehicle passing byand provide accurate monitoring data for the road monitoring, can realize 24-hour monitoring and not be influenced by light and climate change, and can transform the monitoring facility in the existing traffic roads with lower transform cost.

The invention provides a multiple-parameter water quality monitoring node device based on WSN. The multiple-parameter water quality monitoring node device comprises a sensing unit, a core control unit and a power supply module, wherein the power supply module is used for supplying electricity; the sensing unit comprises a signal processing circuit and more than two water quality sensors which are connected with the signal processing circuit; the signal processing circuit comprises a square wave generation circuit, an I/V conversion circuit, a precise rectifying and filtering circuit, a PT100 signal processing circuit and/or a voltage enhancement amplification circuit; the sensors of the sensing unit are connected with the core control unit through the signal processing circuit; the core control unit is respectively connected with a GPA module and a ZigBee module bidirectionally; and the power supply module is connected with the sensing unit, the core control unit and the ZigBee module. The multiple-parameter water quality monitoring node device provided by the invention is simple in integral hardware circuit and low in cost and can be used for simultaneously monitoring multiple water quality parameters.

Disclosed in the invention is an equalizing charging system for a liquid state metal battery. With the system, passive equalization of the liquid state metal battery under high temperatures is realized. According to the system, a non-linear resistor that is made of a SiC or GaN material and is resistant to the high temperature of 600 DEG C is used for being connected with the battery in parallel; the resistance value of the non-linear resistor is the largest when the voltages at the two ends of the resistor are less than a certain value; and almost no current flows through the branch where the resistor is located. When the battery is almost charged fully, the voltage of the battery rises rapidly, the resistance value of the non-linear resistor is reduced quickly, and most of charging currents flow through the resistor branch, thereby preventing an overcharging phenomenon of the battery. An external battery monitoring unit uses a series battery group as a unit to monitor the voltage and charging capacity of the battery group in real time; when any one of the two parameters exceeds a rated value, the charging loop is cut off instantly. According to the invention, the structure is simple and reliability is high; and equalizing charging of the liquid state metal battery can be realized well.

The embodiment of the invention provides an urban inland inundation monitoring method and electronic equipment, and the method comprises the steps: carrying out pre-judgment of the water accumulationcondition of a target urban region based on the rainfall data of the target urban region, and obtaining the current monitoring image data in the target urban region if a pre-judgment result shows thatthe target urban region has the possibility of inland inundation; inputting the monitoring image data into a preset inland inundation monitoring model, and taking the output of the inland inundationmonitoring model as the inland inundation level of the target urban region; and determining whether to output inland inundation alarm information for the target urban region according to the inland inundation level. According to the invention, the accuracy of an urban inland inundation monitoring result can be effectively improved, and the monitoring efficiency and reliability of the urban inlandinundation monitoring process can be further improved.

The invention discloses an atmospheric corrosivity on-line monitoring system and method. The system comprises a corrosion galvanic couple. The corrosion galvanic couple comprises an anode plate and a cathode plate arranged in parallel. The anode plate and the cathode plate are arranged in a conductive solution. The anode plate and the cathode plate are respectively connected to outgoing lines. The outgoing lines are connected to a zero resistance galvanometer. The zero resistance galvanometer transmits the measured corrosion current to an atmospheric corrosion monitoring server. The atmospheric corrosion monitoring server carries out analysis and processing through the received corrosion current value from the corrosion galvanic couple and acquires an atmospheric corrosivity level at any time point through comparison with a preset standard.

The invention discloses a wireless sensor network monitoring method and system based on compressed sensing. The method includes: defining the spatial correlation of deployed sensor nodes in a region to be monitored and obtaining a compressed sensing observation matrix of a wireless sensor network constituted by the sensor nods; and obtaining the theory monitoring data of the region to be monitored according to the actual monitoring data of the sensor nodes and the compressed sensing observation matrix. The wireless sensor network monitoring method and system based on the compressed sensing can reduce the deployment number and difficulty of the sensor network, effectively avoids datagram congestion and data loss of the wireless sensor network, and improves the monitoring accuracy and reliability of the wireless sensor network.

The invention discloses a satellite navigation system integrity monitoring method and system based on networked low earth orbit satellites. The method comprises the steps that each low earth orbit satellite receives a navigation signal of a navigation satellite system and ranging signals of the adjacent low earth orbit satellites, and a navigation message and a pseudo-range observed quantity are obtained; each low earth orbit satellite executes integrity monitoring by use of the obtained navigation message and pseudo-range observed quantity; each low earth orbit satellite receives integrity monitoring results of at least two adjacent low earth orbit satellites, so that at least three groups of integrity monitoring results are obtained, and whether a navigation satellite has a fault is comprehensively judged according to the integrity monitoring results; and each low earth orbit satellite broadcasts a judgment result to a ground user. The system comprises a navigation satellite navigation signal receiver, an adjacent low earth orbit satellite link transceiver, an integrity monitoring data acquisition device, an integrity monitoring separate processing device, an integrity monitoringjoint processing device and an integrity monitoring joint processing result transmitter. Through the satellite navigation system integrity monitoring method and system, the satellite fault can be effectively monitored, and the probability that the navigation result of the user is influenced by a fault signal is lowered.

The invention relates to method and system of acquiring a vehicle shooting and monitoring area. The method of acquiring a vehicle shooting and monitoring area includes the steps: acquiring an intrinsic parameter matrix of a camera, and a transition matrix and a translation matrix from a vehicle ground projection coordinate system to an image coordinate system; according to the vehicle data information and the preset time, performing vehicle track prediction to obtain the predicted driving distance; according to the predicted driving distance, determining the coordinate of the preset reference point of the vehicle in the vehicle ground projection coordinate system after the vehicle is driven for the preset driving distance; according to the coordinate of the preset reference point of the vehicle in the vehicle ground projection coordinate system, the intrinsic parameter matrix, the transition matrix and the translation matrix, determining the coordinate of the preset reference point in the image coordinate system; and according to the coordinate of the preset reference point in the image coordinate system, acquiring the vehicle shooting and monitoring area. The method and system of acquiring a vehicle shooting and monitoring area can realize accurate monitoring of vehicle driving only by acquiring the video data of the camera corresponding to the monitoring area, do not need compress the video data, and can improve the monitoring reliability while reducing the communication load.

The invention relates to a system for monitoring a set of components of a device such as an engine, comprising:

• • means for detecting (2) comprising a set of agents for detecting anomalies (a₁, . . . , a_i, . . . , a_n), with each one of said agents being configured to receive measurements on physical parameters relating to a sub-set of components of a device such as an engine and to deliver an initial distribution of the probability of an anomaly,
  • means for acquiring (3) configured to receive feedback information (17) as well as the initial distributions of the probability of an anomaly coming from said set of agents,
  • means for emerging (5) configured to iteratively emerge current distributions of the probability of an anomaly in line with said feedback information, with said current distributions of the probability of an anomaly converging towards a set of optimum distributions of the probability of an anomaly in accordance with said feedback information, and
  • means for synthesis (7) configured to synthesise optimum distributions of the probability of an anomaly relating to at least one sub-set of interest of components of a device such as an engine in order to extract the risks of an anomaly specific to said sub-set of interest.

When a surface of a filter member on a multilayer film is defined as a first surface, a surface of the filter member on an quartz substrate as a second surface, an inner wall surface of a slit which faces the first surface of the filter member as a first inner wall surface, and an inner wall surface of the slit which faces the second surface of the filter member as a second inner wall surface, one or more of the first inner wall surface and the second inner wall surface of the slit, and the second surface of the filter member do not lie parallel to the first surface of the filter member.