41 results about "Network detector" patented technology

The invention discloses a monitoring and evaluating system of a WLAN (Wireless Local Area Network) wireless network, comprising a background network evaluating sever and a plurality of network detectors, wherein the network detectors are respectively distributed at all hot-spot positions of a city, and are in network connection with an operator by an Ethernet; the background network evaluating sever is provided with a network monitoring and evaluating module so as to carry out summary analysis on network-operation key index data acquired from the bottom layer, find the problems of the network and maintain the security and the performance of the network. The monitoring and evaluating system disclosed by the invention has the advantages that timed testing and acquisition are carried out on network-operation key index data by the network detectors, the size of the timed interval can be set by self; and the monitoring and evaluating system can help the operator to verify and evaluate the quality and the performance of the wifi network in a quick, objective and just manner and provides a scientific evaluating means for improving the management and maintenance level of the operator for the WLAN network and services.

The present invention discloses basic watermark facility, and is one digital work copyright protecting system based on digital watermark. The user purchased legal digital work has two CA signature watermarks embedded, one identifying the publisher and the other identifying the purchaser. When illegal copying is found out with the network detector or memory medium based on movable deputy, the illegal propagator may be determined based these two watermark. The copyright information watermark of the publisher includes the publisher ID and the work ID, the digital fingerprint of the purchaser includes the purchaser ID, and these two watermarks are random sequence produced with the corresponding ID and through CA signature. The present invention uses the correlated concept of PKI system for tracing illegal copying and is simple, practical, reliable and expandable.

A CAN / LIN network detector of vehicle control system is prepared as using industrial control computer to form detector, connecting CAN / LIN network transceiver to vehicle electric interface for collecting network message information and sending it to industrial control computer through serial bus interface or USB interface; applying modularization structure on industrial control computer to analyze node working efficiency, network node state, network load state and so on in real time accurately.

An apparatus for diagnosing motor damping network integrity, the motor damping network configured for selective short-circuiting of the windings of a motor in a motor control system. The apparatus includes a motor controller with a motor drive portion thereof electrically isolated from the windings of the motor. A resonant network is based on the windings of the motor, the damping network, and a remaining non-isolated portion of the controller. An amplifier circuit applies an excitation signal to the resonant network. A detector circuit detects a response of the resonant network based on the excitation signal. A state of the damping network is determined based on the response.

The invention provides addition method and device for monitoring configuration. The addition method for monitoring configuration comprises the following steps of: acquiring a network segment wherein a monitoring target is located; determining an internet protocol (IP) address of a hose in a running state in the network segment; detecting the IP address by using a network detector to acquire information of monitoring target service of the host; inquiring a detection command corresponding to the monitoring target service in a predetermined mapping table, wherein the detection command information corresponding to each type of service is stored in the mapping table; and writing the information of the monitoring target service and file format matching set according to the detection command into a service monitoring configuration file so that a monitoring server performs service monitoring according to the service monitoring configuration file. With the adoption of the scheme provided by the invention, the configuration time is greatly reduced, the workload of a network management person is reduced, and the service monitoring configuration on the various types of the hosts is facilitated.

The invention discloses an airplane engine air compressor stall detection method. The method comprises steps: a sensor is firstly used for collecting pressure signals when the air compressor is in a normal working condition or in a stall condition, and pretreatment is carried out; a negative selection principle in an artificial immune system is then used for building a neural network detector, and the fault detection ability of the detector is improved through training; and finally, stall detection is carried out on the acquired airplane engine air compressor pressure fluctuation signals with a fault label. The negative selection principle in the artificial immune system is used for building the neural network detector, abnormal mode information of the air compressor is stored in the distributed detector through training, fault is found out according to activation of the detector, stall signals can be detected instantly when stall happens, and the detection speed is improved; existing historical data are fully used through training, and the detection rate is improved; and stall of the airplane engine air compressor can be accurately and effectively detected.

The invention relates to the field of detection of electronic detonators and particularly relates to a detonator network detector and detection method. The detonator network detector aims at solving the problems of network state detection before the blasting of electronic detonators. The electronic detonator network detector can detect short circuit, circuit breakage, creepage and other situations of an electronic detonator network with low voltage and low current, and the electronic detonators are intrinsically safe during the whole detection process. According to the electronic detonator network detector and detection method, the state detection of the electronic detonators of the electronic detonator network can be completed by a power supply unit, an output voltage selector, a sampling circuit, a display control unit, a processor and the like which are matched for treatment. The electronic detonator network detector and detection method disclosed by the invention are mainly applied to the field of state detection of the electronic detonators.

The invention relates to a traffic flow statistics method in intelligent traffic. In the prior art, the accuracy of vehicle identification is insufficient, and the efficiency is not high. According tothe method, an SSD and a ResNet in a neural network are adopted, and the method is established with a traditional target tracking CamShift algorithm and comprises a vehicle detection method and a vehicle tracking method. According to the vehicle detection method, firstly, an SSD network is established, the SSD obtains a plurality of feature maps of different sizes, different aspect ratios are adopted for default frames on the same feature layer, the robustness of the default frames to the shape of an object is enhanced, and the position and the target type are regressed while the SSD trainingis carried out. According to the vehicle tracking method, a continuous self-adaptive expected movement algorithm is adopted to track a vehicle identified by a first frame of a single-time movement visual network detector. According to the method, the vehicles can be detected more accurately for statistics, the vehicles can be prevented from being lost through tracking to be counted again, and theobtained traffic flow data are more accurate.

Methods, apparati, and computer-readable media for associating computer network identifications with network policies. A plurality of network detectors (3) are coupled to a client computer (1). A network probe (4), coupled to the network detectors (3), associates each network identification revealed by a network detector (3) with a netspec. A netspec database (6), coupled to the network probe (4), associates netspecs with locations. A policy guide (8), coupled to the network probe (4), associates network identifications with locations. A network interface module (9), coupled to the policy guide (8), implements network policies based upon locations.

The invention belongs to the technical field of network downloading, and in particular relates to a device and method for point-to-point (P2P) downloading based on internetwork protocol standards. The device for point-to-point (P2P) downloading based on the internetwork protocol standards comprises a storage device, at least one downloading client, a network detector and a task distributor, wherein the storage device is used for storing network resources downloaded by the downloading client; the network detector and the task distributor are respectively connected with the downloading client; the network detector is used for detecting and calculating the network resource downloading speeds of different downloading clients; the task distributor is used for distributing downloading tasks in accordance with the network resource downloading speeds counted by the network detector, of the different downloading clients; and the downloading clients are used for downloading in accordance with the downloading tasks distributed by the task distributor. The technical scheme in the invention has the advantages or beneficial effects that the downloading capacity of the downloading clients for the resources is improved maximally, and the whole downloading speed is strengthened maximally.

The invention discloses a computer network safety control device for teaching, comprising a control box body, wherein the top end in the control box body is provided with a fan and the middle is provided with a thermal baffle, a controller is set at the top end of the thermal baffle, one side of the controller is provided with a humidity sensor, one side of the controller is provided with a data storage of which one side is provided with a signal projector, inner power is set at one side of the signal projector, one side of the inner power is provided with a temperature sensor, the bottom end in the control box body is provided with a network transmission line, a network detector is set in the middle of the network transmission line, and one side of he network detector is provided with a relay. The computer network safety control device for teaching can radiate and dehumidify to improve the service life of the control device, meanwhile, when the network occurs unsafe factors,the computer can be disconnected for the first time, so the control device has stronger network safety reminding effect.

The invention discloses a cloud platform malicious behavior detecting system and method, and relates to the field of malicious behavior detection. The cloud platform malicious behavior detecting system comprises a cloud end (10) and a target client (20); the cloud end (10) comprises a first behavior detector (11), a first network detector (12), a scanner (13), a mode sieving device (14), a first malicious program library (15), a first trusted program library (16) and a first network attack mode library (17); the target client (20) comprises a second behavior detector (21), a second network detector (22), a behavior probe (23), a network probe (24), a second malicious program library (25), a second trusted program library (26) and a second network attack mode library (27). The cloud platform malicious behavior detecting system and method has advantages of high efficiency, accuracy, rapidity, expandability and wide adaptability.

The invention discloses a router convenient for network detection, and relates to the technical field of routers. A control main board is arranged in a casing body through a mounting column. A network input connector, a number of network output connectors and a USB connector are respectively arranged on the front end in the casing body. The network input connector is connected with one end of a network detector. The other end of the network detector is connected with the input end of the control main board. The output end of the control main board is connected with a number of network output connectors. The control end of the network detector is connected with an alarm. A power supply module and a power supply conversion module are arranged in the casing body. The power supply module is connected with the power supply end of the control main board and the input end of the power supply conversion module. The output end of the power supply conversion module is connected with the USB connector. The router provided by the invention is convenient for real-time network detection, has the advantages of convenient use, easy operation and time saving, is able to convert a power supply, and is convenient for carrying out charging at any time.

A municipal monitoring system for rainwater drainage relates to the technical field of environment monitoring and comprises a rainwater and sewage pipe network detector, a collection valve, a rainwater collection pool, a programmable logic control device, a signal transmission server, a drainage valve, a drainage sensor and a monitoring cloud platform system. The rainwater and sewage pipe network detector, the collection valve, the rainwater collection pool, the programmable logic control device, the signal transmission server, the discharge valve and the drainage sensor are in circuit connection; and the programmable logic control device collects information of the rain and sewage pipe network detector, the rainwater collection pool and the drainage sensor. Signal transmission can be realized through the monitoring cloud platform system, an instruction is sent to the programmable logic control device, the operation of the whole system is controlled, the accumulation capacity of the rainwater collection pool is automatically regulated and controlled, and the labor cost is saved.

The invention provides a spectrum sensing method based on a small sample training neural network. The method comprises the following steps: pre-training a neural network detector; pre-deploying a detector in an actual operation environment of a system; calculating fine adjustment values and test loss values of the detector in different sensing environments through iteration of a small amount of data and a small amount of gradient, then calculating gradient of initial parameter corresponding to the loss value, conducting gradient updating on the initial parameter so that the initial parameter of the detector can rapidly adapt to change of the environment; performing online adjustment based on initial parameters of a pre-trained neural network detector; and inputting the sampled received signal into the adjusted neural network detector to predict the probability of whether the frequency spectrum is occupied at the moment. According to the spectrum sensing method, the detection performance similar to that of an existing neural network detector based on a large number of samples and gradient iteration can be achieved, and the calculation amount and the sample number required by detector adjustment can be effectively reduced.

The invention relates to a Beidou-based intelligent draining pipe network detector which comprises a water flow detecting pipe connected with a draining pipe, wherein the water flow detecting pipe comprises a connecting pipe; a water blocking rod is arranged in the middle of the connecting pipe; the two ends of the water blocking rod are flexibly connected with the connecting pipe through sealing rings; a connecting hole is formed in the water-blocking rod; a strain rod is arranged in the connecting hole; the strain rod comprises a bar-shaped rubber rod; a resistance strain gage is arranged in the rubber rod; an annular pressurizing shell is arranged on the outer wall of the connecting pipe in a sleeving manner; a pressurizing chamber is formed between the pressurizing shell and the outer wall of the connecting pipe; a wheatstone bridge module, a Beidou satellite signal receiving module and a GSM internet module are arranged in the pressurizing chamber; the two ends of a loop of the resistance strain gage are connected with the wheatstone bridge module; a data output end of the wheatstone bridge module is connected with the GSM internet module; the Beidou satellite signal receiving module is connected with the GSM internet module.

The invention relates to the technical field of network detection, in particular to a wireless network engineering quality detection system and method. The detection system comprises a network tester. The network tester comprises an inner shell, an outer shell, a rubber elastic sheet, a second block, a second groove and a third groove. When the network tester falls off from the air, the outer shell is in contact with the ground, the inner shell vibrates in the outer shell, and when the inner shell is in contact with the second block, the second block extrudes the elastic rubber sheet, so that force borne by the inner shell is transmitted to the outer shell through the second block, and damage to components in the inner shell is reduced; when a worker holds the network detector, fingers of the worker extrude an elastic rubber sheet, a second block moves towards the inner shell, and a rubber block extrudes the inner shell along with the second block, so that internal components are kept stable when the worker uses the network detector, and the use efficiency of the network detector is improved.

The invention relates to a network detector, which comprises a network monitor host and a plurality of network monitor submachines, wherein the network monitor host is connected with a port at one side of a switch of a to-be-detected network connection wire, and the network monitor sub-machine is connected with a port at one side of a computer terminal of the to-be-detected network connection wire; the plurality of network monitor sub-machines can transmit on-off signals and digital coding signals to the network monitor main machine through a to-be-detected network connection wire, and code recognition is performed on the network monitor main machine and the on-off condition is displayed. According to the invention, the on-off condition of network wiring between multiple stations and the switch can be rapidly detected, the detection efficiency is high, and time and labor are saved; and meanwhile, numbering and identification can be performed on to-be-detected network connection wires so that disordered network connection wires between the switch and the ports of the stations can be identified. In addition, the use of the computer terminal of each station is not influenced, and theEthernet running speed can be detected.

The invention discloses a special network detector for relay protection, which belongs to the technical field of relay protection tools and structurally comprises a working power supply module, an optical power/frequency module, a network cable test module, a light splitting module, a red light module, a display and a control panel. The special network detector for relay protection has the advantages that the structure is simple, carrying is convenient, the functions of all network operation inspection tools are integrated, the possibility that all network operation inspection is achieved through a single tool is achieved, and the tool which is powerful in function, rapid and efficient is provided for relay protection network operation inspection work.

The invention discloses a method for detecting a network agent based on instant messaging software. The method comprises the steps that a message of the instant messaging software is detected by a serial network detector in real time and the type of the message is judged; if the detected message is an on-line message or an off-line message, a source address of the on-line message or the off-line message of the instant messaging software is analyzed and acquired; the on-line number of the instant messaging software under the source address is recorded; and if the number of the instant messaging software under the source address is greater than a preset value, the source address is an address of the network agent. The instant messaging software is QQ messaging software. The method pays close attention to an application layer, so that modification of acting equipment in a network layer and a transmission layer is avoided, and the detection accuracy is ensured; and the detection misjudgment is corrected intelligently by the on-line and off-line feature detection of the instant messaging software, so that the detection timeliness and the accuracy are high.