275results about How to "No false positives" patented technology

An intelligent device and method for diagnosing and positioning the leakage of fluid delivery pipeline are disclosed. Said method includes detecting leakage by delivery difference-pressure wave coupling method, and positioning by transient pressure wave locating method to calculate the leakage position. Its device is composed of the start and end stations to which the pressure flow and temp meters, upper-layer set and lower-layer set are mounted, communication network for real-time data exchange, and GPS correction system.

The invention provides a modified misuse-type structured query language (hereinafter referred as to SQL) attack defense system which is based on application system services and an SQL-injected characteristic extraction malicious attack behavior characteristic library and combined with the SQL request of the characteristic library to a user to carry out strict test and block the SQL request with the attack characteristics according to test results, so as to provide the security protection for the database and the corresponding audit record. The invention can be flexibly allocated to boundary defense devices, application servers, database servers and various security audit software, and the SQL attack behavior characteristic library can be updated at any time when the application environment is changed and a new attack type or normal behavior pattern appears.

The invention discloses an alarm method and an alarm device, and belongs to the technical field of computers. The method comprises the steps of acquiring a parameter value of a target detection parameter according to a preset cycle, determining an abnormal value corresponding to the acquired parameter value according to the acquired parameter value when the acquired parameter value exceeds a preset first value range, and performing alarm if parameter values acquired according to a plurality of continuous cycles exceed the preset first value range and the sum of abnormal values corresponding to the parameter values acquired according to the continuous cycles exceeds a preset second value range. With the adoption of the method and the device, the alarm accuracy can be improved.

The invention discloses a smart home security system. The smart home security system comprises a vibration sensor, a door and window magnetic sensor, an infrared sensor, a smoke sensor, a temperature sensor and a gas sensor, wherein the vibration sensor, the door and window magnetic sensor and the infrared sensor are connected with a signal processing circuit A respectively; the smoke sensor and the temperature sensor are connected with a signal processing circuit B respectively; the gas sensor is connected with a signal processing circuit C; the signal processing circuit A, the signal processing circuit B and the signal processing circuit C are connected with a power line carrier communication circuit respectively; the power line carrier communication circuit is connected with a microprocessor; the microprocessor is connected with a keyboard, a camera, a driving circuit, a display, a communication device, a voice alarm circuit and an Ethernet respectively; the driving circuit is connected with a relay; the relay is connected with an electric bell; the communication device is connected with a remote controller. The smart home security system can meet needs of people on theft prevention, fire prevention and gas poisoning prevention, is free of mistaken alarm and has an on-spot snapshot function.

The invention relates to a rubbish short message identification system based on the position of the calling number and transmitted content and a method thereof, comprising: judging whether the amount of the transmitted short message having the same content reaches a first threshold, if true, counting the occurrence number of the position information of the calling number on the transmitted short message with the same content subsequent; judging the short message with the same content as the rubbish short message, if the sum of the occurrence number of the position information of all calling number of the short message with the same content reaches a second threshold, or if the sum of the occurrence number of the position information of any calling number of the short message with the same content reaches a third threshold; transmitting the calling number of the rubbish short message to a short message center, for filtering the rubbish short message for the short message center. The invention ensures that a great deal of short messages received by the short message center are filtered, sorted and processed in real time and high efficiency, and performs real time interception on the rubbish short message.

A device for detecting a user's intention to lock or unlock a motor vehicle door, integrated into a handle (10) and consisting of a casing (B′) includes a first part (52), elastically deformable along a predetermined axis (Y-Y′), with an area (50) of contact with the handle, a printed circuit (80), a voltage source (Vcc), and a contact detection element (100) including:a non-magnetic metal target (40) which moves along the predetermined axis,a coil (20), and a capacitance (C1), forming an oscillating circuit,elements (M1) for adjusting the frequency of the circuit,a prestressed compressible element (30), located between the target and the coil,elements (51) for transmitting a movement of the first part to the target,elements (M2) for measuring an inductance (L) of the coil,elements (M3) for comparison between the measured inductance and a predetermined threshold value of inductance (Ls),and control elements (60′).

The invention discloses an uninterrupted power supply capable of carrying out bypass current backward flowing detection. The uninterrupted power supply comprises a UPS main circuit and a tri-line UPS bypass coupled to the UPS main circuit; and the midpoint of a bus of the UPS main circuit is connected with each one of three lines of an input end of the UPS bypass through dummy load respectively. In the uninterrupted power supply for carrying out short-circuit detection before electrification of a bypass thyristor, the midpoint of the bus of the UPS main circuit is connected with each one of the three lines of an output end of the UPS bypass through the dummy load. In the uninterrupted power supply capable of carrying out bypass current backward flowing detection and short-circuit detection before electrification of the bypass thyristor, the midpoint of the bus of the UPS main circuit is connected with each one of the three lines of the output end and each one of the three lines of the input end of the UPS bypass through the dummy load. The invention also discloses a method for detecting bypass fault of the uninterrupted power supply. The method realizes bypass detection through current detection, does not cause detection coupling as the UPS is connected with a common bypass source, and has no misinformation and omissive report in parallel operation.

The invention provides a method for detecting file stealing Trojan based on a thread behavior, which comprises the following steps of: monitoring file operation and network operation of a thread; forming a behavior sequence buffer queue by the monitored thread, the process of the monitored thread, intercepted file operation, data read by a file, the network operation and data transmitted by a network; judging whether the file read by the thread is a file transmitted by the network or not according to the behavior sequence in the buffer queue; and if SO, checking whether the thread and the process of the thread have secrecy, if SO, judging whether a behavior that Trojan steals the file exists. The invention also provides a system for detecting the file stealing Trojan based on the thread behavior. According to the method and the system, provided by the invention, the misreport of the normal file transmission can be reduced, and the detection to the behavior that the Trojan steals the file is improved.

The invention discloses a battery silk-screen quality detection method combining block template matching with morphological processing. The method comprises the following steps: establishing a character part template based on a morphological template matching method; extracting a battery area by applying threshold segmentation and morphological corrosion; determining an inclination angle in a mode of solving a minimum circumscribed rectangle of a battery area, searching the minimum circumscribed rectangle as a final result by adopting an equal interval rotation search algorithm, and performing reverse rotation on a deflection angle by utilizing affine transformation to perform battery correction and cutting; identifying the defects of the illustration part by adopting a difference image method; sequentially shielding picture insertion, character segmentation, character extraction and correction, character recombination and to-be-detected character skeleton extraction, identifying character part defects by adopting a difference image method, and carrying out defect detection by adopting suspicious area translation difference detection and suspicious area micro-rotation difference detection. The method is high in accuracy and low in cost, and has a certain degree of promotion effect in the field of domestic battery screen printing quality automatic detection.

The invention discloses an automobile rear collision early warning system and method based on visible light communication. The automobile rear collision early warning system comprises a positioning module, an MCU, a light communication modulation module, a photosensitive receiver and an HMI system; the positioning module (b),( / b) a light communication modulation, a photosensitive receiver and the HMI system are respectively connected to the MCU; and the LED lamp is connected to the light communication modulation modules. The invention also discloses an automobile rear collision early warning method based on the visible light communication. The automobile rear collision early warning method comprises: the automobile rear collision early warning systems based on visible light communication are installed on a preceding vehicle and on a rear vehicle approaching vehicle; the rear approaching vehicle adopts an initiative mode to transmit information to the preceding vehicle to enable the preceding vehicle to obtain more state information of the rear approaching vehicle in order to guarantee accuracy of the preceding vehicle rear collision early warning; and besides, the preceding vehicle rear collision early warning can adopt a suitable TTC threshold value according to the vehicle model of the rear approaching vehicle to make determination accurate.

The invention discloses a detector and a detection method for wafer position. The detector comprises a carrying platform, a driving device, a blowing device, a camera device and an image processing device. The carrying platform is used for carrying a wafer. The driving device is connected with the carrying platform and is used for driving the carrying platform to rotate. The blowing device is arranged above the carrying platform and blows toward peripheral edges of the wafer on the carrying platform so as to dry the peripheral edges of the wafer. The camera device is arranged above the carrying platform and is used for taking images of the wafer on the carrying platform and sending the taken images to the image processing device. After the image processing device receives the images taken by the camera device, images in a partial area on the peripheral edges of the wafer are converted into a pixel, and the pixel and an image reference pixel in the partial area are compared, if the pixel and the image reference pixel are consistent, the wafer is placed on the carrying platform correctly, and if not, position of the wafer on the carrying platform is judged to deviate from correct position.

The invention relates to a smart anti-theft system. The smart anti-theft system includes an alarm sensor, a network surveillance camera, a door magnetic sensor, an infrared sensor, and a network router. The smart anti-theft system is characterized by also including a human face recognition device, a communication module and a main control module; the alarm sensor is electrically connected with the network surveillance camera; the door magnetic sensor is electrically connected with the network surveillance camera; the infrared sensor is electrically connected with the network surveillance camera; the network router is electrically connected with the network surveillance camera.; the main control module is connected with the communication module, the alarm sensor, the door magnetic sensor and the infrared sensor; and the human face recognition device and the communication module are connected. The smart anti-theft system can solve the problems that a conventional alarm system is inaccurate in alarm, non-timely in alarm, incapable of smart control, complex in operation, and low in efficiency.

The invention discloses a method for fast detection of residual sulfur dioxide in food. The method comprises the following steps: extracting: taking 1 part by weight of sample, placing into a container, simultaneously adding 0.1-10 parts by weight of carbonate, bicarbonate or sodium borohydride and other gas-producing tablet substances and 0.05-10 parts by weight of defoaming agent, and then adding a reaction reagent acid, wherein the adding amount is as follows: the ratio of sample g / reagent volume ml=1: (10-50); distilling under a boiling situation, and collecting sulfur dioxide gas produced by distillation by utilizing 2-10ml of alkaline solution, wherein the adding amount is as follows: the ratio of sample g / alkaline solution volume ml=1: (2-10); forming a collected solution; detecting: taking the collected solution, placing into a glass detection pool, then adding metal nano-sol and an inorganic salt flocculant, uniformly mixing, and then placing into a portable Raman spectrometer detection room for detection. The method disclosed by the invention has the advantages of short detection time, capability of realizing fast screening of large-batch samples, high accuracy and no occurrence of false positive phenomena.

The invention discloses a line breaking detection method for a servo motor power line. An alternating current servo driver is provided, the alternating current servo driver comprises a motor closed-loop control circuit, a phase current instruction calculating unit and a line breaking detection logical unit. The phase current instruction calculating unit feds a three-phase feedback current and a three-phase current instruction into the line breaking detection logical unit according to a torque current instruction in the motor closed-loop control circuit, a line breaking logical judgment strategy is configured in the line breaking detection logical unit, and line breaking judgment is conducted through the line breaking logical judgment strategy. By means of the line breaking detection method for the servo motor power line, phase currents can be judged directly, when large deviation exists between the torque current instruction and a practical torque current and the output target torque is smaller than a detection threshold value in a torque mode, more than two broken lines in the three-phase power line can also be accurately recognized, the comparative result of the phase current instruction and the feedback phase current in each period can be filtered, and thus false alarming cannot happen.

The invention discloses a traffic light positioning method. The method comprises: expanding an object region where traffic lights are in in advance, obtaining a constraint region, and performing binaryzation on a grayscale image of the constraint region, extracting proportion of bright regions, the number of small area bright regions, the number of standard light area bright regions, the number of large area bright regions, and the average gray value of dark regions from binarization images, according to the features, determining day or night of an intersection image where the object region is in, if the image is a night image, detecting signal lights whose states are lightened through the binarization image, and according to the positions of the signal lights, adjusting positions of the traffic light; if the image is a day image, detecting a black frame in a traffic light structure through the binaryzation image, and according to the position of the black frame, adjusting the positions of the traffic light. The method is advantaged by low calculation complexity, fast operation speed, good environment adaptability, and simple realization.

The invention discloses a primer, probe and kit for detecting type-16 HPV (human papillomavirus). The primer and the probe are suitable for screening the HPV related diseases quickly, accurately and simply, do not cross-react with other viruses, are capable of detecting common high and low risk types of HPVs, two types of HPVs and 14 types of HPVs in total, cover a wide range of high risk types of HPVs and are more accurate and complete in detection than kits in the present market. The kit further comprises negative, positive and weakly positive quality controls and helps further increase detection accurateness.

The invention discloses a proactive defense system based on a truth virtual network, and a method. The system comprises the following modules in signal circulation communication: an attack detection module, a tricking guidance module, a vulnerability simulation module, an attack isolation module, a behavior recording module, an intelligent analysis module, an attack playback module and an attack countering module. The implementation method of the proactive defense system based on the truth virtual network follows a D3I network proactive defense model, and the D3I network proactive defense model comprises the following modules in signal circulation communication: a detection module, a deception module, an inception module and a defense counterattack module. The proactive defense system realizes accurate identification of attackers, effectively tricks and isolates the attackers to be far away from real service networks, comprehensively records, playbacks and intelligently analyzes attackbehaviors and counterattacks the attackers more effectively.

A chemical luminous ligand analysis method for quantitatively checking human antibodies belongs to the biomedical technical field, which comprises: using the generality that staphylococcal protein A (SPA) can react with Fc point of IgG in mice; using the monoclonal antibody of high affinity and specificity to prepare a standard product to establish a standard curve; respectively reacting the monoclonal antibody and the antibody in the sample with enzyme-labeled antigens; using the nanometer magnetic particles coated by SPA as ligand to separate solid and liquid; and using enzymatic chemical illumination reaction catalyzed by horseradish peroxidase (HRP) to process illumination check; thereby establishing a chemical luminous ligand quantitative analysis on human antibodies. The chemical luminous ligand analysis method is suitable for quantitatively checking all human antibodies, for resolving the problem of prior art while most human antibodies can not be accurately and quantitatively checked, avoiding cross reaction and avoiding false negative result or false positive result.

The invention provides a method for quickly detecting communication of an IP channel of a household router. The method is characterized by comprising the following five steps: 1, acquiring IP address through a WAN port of a terminal, and starting network detecting; 2, sending ARP (Address Resolution Protocol) detection to a gateway at every 10 seconds, and continuously waiting for the next detection after successfully detecting within 5 seconds; 3, sending DHCP (Dynamic host configuration protocol) to relet an IP packet if the ARP response is not received after 5 seconds, and further determining whether a DHCP server is connected; 4, continuously returning to the ARP detection if the response is received within the specified time, and waiting for the next ARP detection; 5, clearing the IP address obtained by the terminal and starting a new DHCP process is the DHCP Request response is not received within the specified time or the DHCP Request exceeds the specified time. The method is used for detecting whether the IP channel of the household router is communicated.

The invention provides a method, scanner, device and system for identifying webpage distortion. The method comprises the steps of receiving an expected page element set, sent by a website side through a first page response, of a monitored page, receiving a real page element set and a refreshed page element set sent by the website side through a second page response, calculating a reference page element set according to the expected page element set, the real page element set and the refreshed page element set, and judging whether the monitored page is distorted or not according to the reference page element set, the real page element set and the expected page element set. According to the method, the aim of judging whether the monitored page is distorted or not on the side of the canner is achieved, that is, in the view of a client side, webpage distortion is identified, and the situation that in the prior art, a method for identifying the webpage distortion cannot accurately judge whether the webpage is distorted or not is avoided.

The invention relates to an electronic alarming guard bar for isolating the electrified regions such as power plants, power stations and other places, the construction fields and other dangerous regions, comprising two or above bars provided with a photoelectric beam detector, which comprises a photoelectric beam transmitter and a photoelectric beam receiver, in pairs arranged on different bars and connected with an alarm device each. It is convenient to install and simple to operate and able to reduce fatal accidents.

The invention relates to the technical field of computers and discloses an SQL injection prevention method, device and system. The method includes the steps that before a structured query language (SQL) statement is sent to a database server, semantic information is embedded into the SQL statement, and submitted data containing the SQL statement and the semantic information are generated, wherein the semantic information contains an SQL template corresponding to the SQL statement, a start symbol and an end symbol, and the start symbol and the end symbol are used for marking the position of the SQL template; the submitted data are sent to the database server. Through the method, it is effectively avoided that sensitive data in the server are obtained by an attacker through SQL injection and then are used for attacking application programs, and thus error reports and failure reports are avoided.

The invention relates to a culture medium for detecting difficult cultivation type lactic acid bacteria in food and a detection method thereof. The formula in every 1000 parts of the culture medium includes: by weight, 10-40 parts of carbohydrate, 5-15 parts of peptone, 2-6 parts of yeast extract powder, 5-15 parts of beef extract powder, 1-3 parts of dipotassium hydrogen phosphate, 1-3 parts of triammonium citrate, 2.5-7.5 parts of sodium acetate, 0.1-0.3 part of magnesium sulfate, 0.02-0.06 part of manganese sulfate, 0.5-1.5 parts of tween-80, 0.5-1.5 parts of soluble starch, 0.2-2 parts of acid production metabolism promoting factor (ferrous sulfate heptahydrate and / or nickel chloride hexahydrate), 100-500 parts of unpolluted sample filtrate, and the balance distilled water. The pH adjusts to 4-5.5. The culture medium can simulate a real growing environment of the microorganism, and the solid difficult cultivation type lactic acid bacteria can be cultured rapidly because of the addition of the metabolism promoting factor. Whether the putrefying lactic acid bacteria exists can be determined simply and rapidly by using the culture medium to perform cultivation and fermentation, so that the rapid detection of the difficult cultivation type lactic acid bacteria on food can be realized.

The invention discloses a method for detecting mining virtual currency, equipment and a storage medium. The method comprises the following steps of: forming a virtual currency mine pool information library; generating a virtual currency mine pool domain name AI detection model; acquiring dNS metadata and Netflow flow information, carrying out domain name matching on a requested domain name and a virtual currency mine pool information library, and when matching succeeds, comparing an IP address corresponding to the requested domain name and a port corresponding to the IP address with Netflow flow information to judge whether a mining behavior exists or not; when the domain name matching is unsuccessful, detecting the requested domain name by using the AI detection model; and when a highly suspicious mine pool domain name is detected, performing service scanning by using a mine pool service detection component, and comparing a port and an IP address obtained by scanning with the Netflowflow information to judge whether a mining behavior exists or not. According to the method, the mining behavior can be accurately detected, and misinformation is avoided.

The invention provides a rain cape with a safety warning function, comprising a rain cap and a raincoat, wherein the raincoat is provided with a safety warning circuit composed of a left warning circuit and a right warning circuit; the left warning circuit is composed of a left power switch circuit comprising a storage battery and a touch delay switch, a left front warning light and a left rear warning light, and the left front warning light and the left rear warning light are connected in parallel and then connected with the storage battery through the touch delay switch; the left power switch circuit is arranged on the left shoulder part of the raincoat, the touch delay switch faces outwards, and the left front warning light and the left rear warning light are respectively arranged on the left front part and the left rear part of the raincoat; the right warning circuit is composed of a right power switch circuit comprising a storage battery and a touch delay switch, a right front warning light and a right rear warning light, and the right front warning light and the right rear warning light are connected in parallel and then connected with the storage battery through the touch delay switch; and the right power switch circuit is arranged on the right shoulder part of the raincoat, the touch delay switch faces outwards, and the right front warning light and the right rear warning light are respectively arranged on the right front part and the right rear part of the raincoat. The rain cape of the invention has the beneficial effect that while turning, the warning circuits are conveniently started and not easily damaged, and no false warning occurs.

The invention relates to the video detection field and especially relates to a post-leaving detection method and a system thereof. The method comprises the following steps of a model training step: training a training set sample including various kinds of human heads, left and right ears, an upper part of a human body and a body image so as to acquire a human head model, a left and right ear model, a model of the upper part of the human body and a human body model; and a post-leaving detection step: acquiring a sentry box video frame sequence, using the human head model, the left and right ear model, the model of the upper part of the human body and the human body model to detect the sentry box video frame sequence, and determining that a person is in a post-leaving state if any one of the human head, left and right ears, the upper part of the human body and the human body can not be detected. In the invention, a probability of false detection is greatly reduced and detection accuracy is greatly increased.

The invention discloses a method for analyzing short-chain chlorinated paraffin in an environment sample by a comprehensive two-dimensional gas chromatography-flight time mass spectrometry, which belongs to the technical field of analytical testing. The method comprises the following steps: 1) performing enrichment extraction on SCCPs in the environment sample; 2) employing a comprehensive two-dimensional gas chromatography-electron bombardment ionization source-low resolution time-of-flight mass spectrometer for detection; 3) employing library searching and a retention time index for determining the nature of the SCCPs component in the sample; and 4) employing an internal standard curve method for determining total amount of SCCPs. The pre-treatment method has the advantages of high extraction efficiency, good purifying effect, and wide application scope; the used apparatus has the advantages of high analysis efficiency, good separating effect, and strong anti-interference capability;the qualitative method is fast and accurate, and does not depend on a standard substance; the quantification method has the advantages of low detecting limit, low sensitivity, wide linearity range, and good repeatability, and the analysis requirement of SCCPs in the practical environment sample can be satisfied.

The invention provides a three-dimensional sound sensitive early warning and alarming check system and belongs to the safety technique precaution field. The invention provides an early warning and alarming check system which achieves three-dimensional detection of space, underground and areas through underground sound sensors. The invention comprises a central control host computer which processes and analyzes signal, and controls the alarm and the system. The central control host computer is connected with a plurality of area control units which demodulate area signal, control early warning and play sound. The central control host computer and the area control units are connected with a plurality of front-end control units to process and control underground sound sensor signals. A plurality of underground sound sensors connected with the front-end control units constitute monitoring subareas for solid detection of space, underground and areas. A plurality of monitoring sub-areas constitute three-dimensional solid monitoring of the entire system. The central control host computer integrates information of signals, thus giving an alarm in case of invasion, positioning and tracking targets, describing the track of the targets, monitoring sound and checking the alarm. The invention is used for guarding circumferences of critical facilities.