30results about How to "Efficient and accurate monitoring" patented technology

A method and system for monitoring traffic flow includes assigning a subset of sampling points to a node or unique pair of nodes. The sampling points are determined to be the most likely to monitor data traffic, and preferably all data traffic, associated with the node or node pair. The sampling point subset may automatically be determined and assigned to the node or node pair, based, for example, on historical traffic within the network. The method further includes collecting diagnostic network traffic data from the sampling points, and obtaining sampled traffic flow counts for a flow associated with a node pair from the diagnostic traffic data collected from the sampling points assigned to the source and destination nodes of the node pair. The method further includes performing a function on the sampled traffic flow counts to obtain an estimated traffic flow count for the respective flow.

A memory system and storage device are provided, including: an auxiliary power device having at least one capacitor, wherein the at least one capacitor has a first path for leakage current; a charging circuit including a switch connected to the auxiliary power device; and a state determining circuit connected to the auxiliary power device, wherein the state determining circuit includes a path circuit connected in parallel with the at least one capacitor to form a second path having at least one of a resistance lower than a resistance of the first path or a current source.

The invention discloses an on-line leakage intelligent monitoring system based on multi-parameter monitoring and a monitoring method. The monitoring system includes a front-end leakage detection connecting device installed on a monitored device and a rear leakage monitoring device connected with the front-end leakage detection connecting device, the front-end leakage detection connecting device includes a plurality of leakage detection connecting pipes and a first connecting joint, a plurality of monitoring holes are arranged in the monitored device, each monitoring hole is connected with an inlet of one leakage detection connecting pipe, the rear leakage monitoring device includes a pressure monitoring device, a gas monitoring device, an acid-base value monitoring device, a data acquisition instrument, a master control device and a leakage alarm device, The monitoring method includes steps of monitoring project selection, alarm threshold setting, monitoring setting, and online leakage monitoring. The on-line leakage intelligent monitoring system is reasonable in design, simple in use, operation, and connection, and good in use effect, and can monitor the leakage conditions of the monitored device in real time online, the monitoring manner is flexible, the monitoring result is reliable, and the later query is simple.

The invention relates to a road early warning system and method and a remote early warning device of the road early warning system. The road early warning method is achieved through the remote early warning device and the road early warning system, a driver is accurately reminded of road conditions through the combination of alarms, a subtitle electronic display screen and a warning lamp, the nerve of the driver can be stimulated through the high-frequency alarms, and then the better warning effect is achieved. The road early warning system can efficiently and accurately monitor and position accident positions, the early warning method is simple, the safety coefficient is high, and the occurrence rate can be effectively decreased before rescue workers arrive at the scene.

The invention provides a technology type hardware Trojan virus monitoring method and apparatus. The method includes thefollowing steps: determining key inner nodes in a to-be-tested chip and an electrical parameter reference value corresponding to each key inner node, on the basis of an external test enabling signal, determining the test sequence of the key inner nodes, successively acquiring the electrical parameter of the key inner nodes, comparing the acquired electrical parameters and the corresponding electrical parameter reference values, counting the times when the key inner nodes have electrical parameters deviated from corresponding electrical parameter reference values, if the counting is continuously greater than a threshold value, determining the presence of Trojan virus in the to-be-tested chip. In the whole process, on one hand, the key inner nodes are monitored at regular times and the acquired electrical parameters are compared with the corresponding electrical parameter reference values, such that the method takes the influence of technology interface sufficiently into consideration, and can efficiently and accurately monitor the technology type hardware Trojan virus.

The monitoring system of the present invention is composed of an integrated signal conditioning circuit board and a vibration acceleration sensor circuit board, which can realize signal conditioning and signal output of two speed sensors, two temperature sensors and one triaxial vibration acceleration signal. Process the collected acceleration signal and pulse signal to obtain the angular domain and time domain stable signal and instantaneous speed. There are four main steps: Step 1. Divide the bearing into several areas in the circumferential direction and install the magnetic steel. The magnetic steel rotates with the bearing. The Hall sensor obtains the pulse signal; step 2, calculate the time difference between adjacent pulses, and obtain the instantaneous rotational speed of the bearing; step 3, obtain a time domain stable signal by equal interpolation of the time domain signals collected in each area; step 4 , according to the relation of speed variation, the time domain signal is interpolated and resampled to obtain the angle domain stationary signal. The present invention generally realizes the real-time adjustment and monitoring of the three dynamic parameters of rotation speed, temperature and vibration acceleration.

The invention provides a 5G-oriented metamaterial structure broadband antipodal Vivaldi antenna and a measurement method thereof. The solution includes a first metal radiation sheet, a second metal radiation sheet, a director, a dielectric substrate, and a metamaterial structure array with a side length g1; the first metal radiation sheet and the second metal radiation sheet are centered on the dielectric substrate centerline The symmetry axes are respectively symmetrically printed on the front and back sides of the rectangular horizontal plane in the dielectric substrate, and four rectangular groove lines are respectively etched on the first metal radiation sheet and the second metal radiation sheet; wherein, the angles between the rectangular groove lines and the center line of the dielectric substrate are respectively is 60°; the metamaterial structure takes the central feed line of the dielectric substrate as the symmetry axis, and is symmetrically distributed left and right; the first metal radiation sheet and the second metal radiation sheet include an inner gradient line and an outer gradient line. This solution can extend the antenna bandwidth, improve the radiation gain in the frequency range under high frequency conditions, and suppress the beam deformation caused by the increase in radiation gain under low frequency conditions, and maintain the high gain and beam symmetry characteristics of the antenna.