70results about How to "Avoid False Positive Situations" patented technology

The invention discloses a forward collision early-warning method and a forward collision early-warning system based on curve self-adaption, which can prevent the misinformation condition of listing vehicles in lateral lanes as early-warning vehicles through judging whether a target vehicle and a present vehicle are in the same lane after determining whether a horizontal coordinate distance between the two vehicles is within a set lane width. Moreover, a prediction trajectory of the present vehicle serves as a vertical axis of a local coordinate system, so that the vertical axis of the local coordinate system can change along with the road profile automatically, therefore, the forward collision early-warning system can adapt to a curve scene.

The invention discloses a household old person monitoring intelligent mobile trolley, a monitoring system and a monitoring method thereof and belongs to the field of household intelligent monitoring. The household old person monitoring system comprises an all-round cradle head high-definition video camera, a wearable wireless physiological sensing device, an information storage and processing decision center and the intelligent mobile trolley, wherein the all-round cradle head high-definition video camera and the intelligent mobile trolley cooperate with each other for tracking and monitoring according to position information of an old person, collect video information of the old person and transmit the video information to the information storage and processing decision center; and the information storage and processing decision center integrates and analyzes the received information and makes a judgment decision, and makes decisions of calling a medical institution and informing family members when the old person has an abnormal behavior. According to the household old person monitoring intelligent mobile trolley, the monitoring system and the monitoring method thereof, the accurate and all-round monitoring can be carried out on the old person, the abnormal condition of the old person can be judged through multi-information fusion, the false alarming condition is avoided, and the accuracy of the monitoring system is improved.

The process of detecting gene mutation in cell with one-dimensional microflow controlled biochip includes constructing mutation detecting chip based on one-dimensional microflow controlled micro bead array, diluting hybridization buffering solution with total RNA or target DNA sample and fluorescent probe, pressurizing the hybridization buffering solution through the micro channel to the micro bead array, hybridizing and eluting high precision eluent containing formamide, observing in a turned fluorescent microscope and taking micro bead surface fluorescence image, calculating the surface fluorescence intensity, and judging the mutation type of the detected site based on the fluorescence intensity. The present invention is hopeful in realizing the gene mutation analysis in single cell level.

The invention discloses a Bluetooth communication-based falling-off alarm system and an alarm method thereof. According to the Bluetooth communication-based falling-off alarm system and the alarm method thereof, a mobile application (APP) is used in cooperation, a built-in falling-off detection device only needs to perform data detection, and data processing and alarm operation are completed by the mobile APP, and therefore, the method is simple, and development difficulty is low, and the advantages of a smart phone can be fully utilized, and multi-mode alarm can be realized; low-battery alarm prompting of the falling-off detection device and mobile phone forgetting prompting can be performed through the mobile APP, and therefore, the old people will not forget to take smart phones, and therefore, the Bluetooth communication-based falling-off alarm system and the alarm method thereof have high applicability; falling-off situations are judged through parameters such as angle, displacement and time; comprehensive judgment can be performed through falling-off data of two falling-off detection devices in shoes, insoles or socks, and therefore, unnecessary false alarm can be avoided, and falling-off detection accuracy is high; the falling-off detection equipment is wrapped by a high-strength plastic shell, so that the falling-off detection equipment has waterproof and anti-shock functions, and standby time of a built-in power source is long.

An embodiment of the invention provides a bidirectional forwarding detection (BFD) method and device of an aggregation link. The method includes: building a BFD conversation which does not transmits a BFD message with the neighbor switcher of the aggregation link, and building the micro-BFD conversation group of the aggregation link with the neighbor switcher of the aggregation link, wherein the micro-BFD conversation group comprises micro-BFD conversations for detecting the communication states of the member ports of the aggregation link, and each member port corresponds to one micro-BFD conversation; enabling the micro-BFD conversations in the micro-BFD conversation group to respectively report the communication states of corresponding member ports to the BFD conversation; enabling the BFD conversation to report the communication state of the aggregation link to an upper layer protocol module on the basis of the communication states of the member ports.

The invention discloses a malfunction study and determination optimization method based on a power distribution main station. The method includes the steps of (1) when a sharp drop occurs, distinguishing that the sharp drop is caused by an accident or manual operation; (2) recognizing the state of automation equipment to conduct trip point analysis; (3) additionally conducting filtering disposal on emergency power cut information; (4) verifying malfunctions of an adopted system; (5) making protective signals of non-trip-out equipment on a feeder line subjected to the trip point analysis for processing; (6) recognizing a distribution transformer of an internet port of a power plant and distribution transformers of multiple power sources, and ignoring the distribution transformers above during the trip point analysis; (7) recognizing the power cut causes of the distribution transformers and the electrification state of the distribution transformers; (8) conducting analysis and generatinga prewarning distribution transformer list. By adopting the malfunction study and determination optimization method, the accuracy of study and determination is improved, error reports and report omissions can be reduced, and the working efficiency of dispatching and repairing distribution networks is greatly improved.

The invention provides an intrusion detection method based on Markov chains. Network data package characteristics are extracted, and data models based on the Markov chains are constructed. Markov chain models are respectively constructed in a training phase and a detection phase. An intrusion detection algorithm is improved according to event importance. By adopting the improved intrusion detection algorithm, the abnormity detection of the Markov chains in the training phase and the detection phase is carried out to acquire abnormity results. The intrusion detection method mainly focuses on special attack types of an industrial control field ICS system, and under a condition of completely normal network communication data package formats, sequence attacks based on a sequence and time can still happen. According to experimental verification, the intrusion detection method is advantageous in that a false alarm rate is effectively reduced, higher detection efficiency and higher accuracy are provided.

The invention discloses an LAMP (Loop-mediated Isothermal Amplification)-and-molecular-beacon-based reaction system and method for detecting HPV16 and HPV18. The reaction system comprises outer primers, inner primers and molecular beacon probes MB-16 and MB-18, which are all used for detecting HPV16 and HPV18. According to the method for detecting HPV16 and HPV18, HPV pathogens are detected on the basis of the LAMP and molecular beacon technology; on the basis of the traditional LAMP technology, LAMP amplified products are detected by virtue of the intensity difference of fluorescence emitted by the molecular beacon probes at different temperatures; compared with the traditional LAMP technology, a false positive result caused by self-hybridization of the primers in the traditional LAMP technology is avoided; the advantages of strong specificity and simple operation are achieved.

The invention discloses a coma automatic alarm system and an alarm method based on a brain-machine interface. The system comprises a signal acquisition module, a signal processing module, a signal transmission module and an intelligent terminal, wherein the signal acquisition module, the signal processing module, the signal transmission module and the intelligent terminal are sequentially connected in series. The signal acquisition module is used for acquiring the brain electrical signal of a user, amplifying, filtering and converting the acquired brain electrical signal, and then transmitting the processed signal to the signal processing module. The signal processing module is used for conducting the fast Fourier transformation on the processed signal, extracting the feature of the signal, identifying the feature of the signal, and comparing the identified feature of the signal with a preset threshold value. On the condition that the identified feature of the signal is larger than the preset threshold value, the signal transmission module sends an alarm signal to the intelligent terminal. If the alarm signal is not cancelled by the user within a preset period of time, the intelligent terminal sends the alarm signal to a first-aid station. Therefore, no sensor or other signal acquisition devices is required, wherein signals are acquired based on human vital signs. Therefore, the coma state of the user can be sensed and alarmed at the first time. The system and the method are applied in the scenes of accident warning, old person monitoring, patient monitoring, and the like.

The invention discloses an active kitchen fire prevention alarm device, relating to the field of safety devices. The active kitchen fire prevention alarm device comprises an infrared array sensor, anenvironment detecting module, a human body identification module, a wireless communication module, a processing and storage module, a warning module and a power supply management module, wherein the infrared array sensor is used for monitoring temperature of a plurality of position points on a kitchen stove in real time; the environment detecting module is used for detecting ambient gas concentration in a kitchen; the human body identification module is used for detecting human body signals in the kitchen; the wireless communication module is used for connecting the active kitchen fire prevention alarm device with terminal equipment; the processing and storage module is used for receiving monitored data, and carries out comprehensive calculation based on a difference value of maximum temperature values in temperature difference data received twice sequentially, judging whether an alarm is needed according to a calculation result, and transmitting an alarm signal to the warning module if necessary; the warning module is used for receiving the alarm signal and giving out an alarm; and the power supply management module is used for providing electric energy to the modules. The activekitchen fire prevention alarm device can predict a fire in advance and notify the user to make corresponding treatment without being affected by the open fire normally used in the kitchen and the smoke generated by normal cooking.

The invention discloses a method and a system for detecting video occlusion in video monitoring. The method comprises the specific processing steps of obtaining a video image, preprocessing the image,then extracting regions of interest, calculating the image frequency of the previous n frames; establishing an initial Gaussian model, then calculating the frequency of the new frame image, judging whether the new frame hits the Gaussian model or not, setting the number of times of abnormity as 0 if the new frame hits the Gaussian model, updating the model by [alpha]1, adding 1 if the new frame hits the Gaussian model, updating the model by [alpha]2, judging that the video is shielded when the number of times of abnormity is greater than a threshold value, and giving an alarm. According to the method, the detection speed is high, the influence of image noise and illumination change is solved, the detection accuracy is improved, and the false alarm condition is avoided.

The invention provides a server monitoring method and device. The method comprises the steps that at least one to-be-monitored project is obtained, and the at least one to-be-monitored project is recorded to an established service file; at least one to-be-monitored server is determined, and the service file is distributed to each to-be-monitored server; the monitoring software installed in the to-be-monitored server in advance is used for monitoring each to-be-monitored project recorded in the service file in the to-be-monitored server to obtain corresponding monitoring data aiming at each to-be-monitored server; the monitoring data corresponding to each to-be-monitored server is obtained, and the monitoring data corresponding to each monitoring server is displayed. By means of the methodand the device, using experience of a user can be improved.

The invention discloses a falling-down alarm system and method for a shower room. The falling-down alarm system comprises a load-bearing plate, pressure sensors, distance sensors, an alarm device anda controller, wherein the pressure sensors are arranged between the floor of the shower room and the load-bearing plate and send pressure value signals to the controller; the distance sensors are arranged at a certain height from the ground and used for detecting the distance between the wall surface and a reflector and sending distance value signals to the controller; and the controller is used for receiving the pressure value signals and the distance value signals and controlling the alarm device to alarm when the value measured by the pressure sensors is greater than a non-occupation valuemeasured by the pressure sensors when the shower room is unoccupied and the value measured by the distance sensors is an initial value so as to solve a problem that a user cannot get timely assistancewhen accidentally falling down in the shower room.

The invention relates to an efficient energy-saving stove. The stove comprises an empty-burning preventing device, a waste heat recycling device and a burning optimizing control device. The empty-burning preventing device comprises a pan sensing device and a wok sensing device which are composed of non-contact type electromagnetic sensing sensors. The waste heat recycling device comprises a waste heat recycling part composed of a hearth recycling section, a horizontal recycling section and a vertical recycling section, and a waste heat utilizing part composed of a cold water heating box and a hot water tank. The hearth recycling section, the horizontal recycling section and the vertical recycling section are connected with the cold water heating box and form independent water heating circulation systems respectively. A pipeline is communicated between the cold water heating box and the hot water tank. The burning optimizing control device is composed of an opening degree detection device of a fuel gas pipeline valve, a controller and a draught fan speed regulating module. According to the efficient energy-saving stove, the empty-burning preventing effect is effectively improved, waste heat recycling efficiency and burning efficiency are effectively improved, and all-around energy conservation and consumption reduction are achieved.

The invention relates to a double-network intelligent antitheft alarm system which is mainly characterized by comprising a front-end detector, an alarm receiving center host machine, an information control processing module and GSM (Global System for Mobile Communication) and PSTN (Public Switched Telephone Network) networks, wherein the front-end detector comprises an electron counter-shooting network, an infrared curtain, a smoke sensing detector, a gas detector, an infrared detector and a door magnet; the alarm receiving center host machine is connected with the front-end detector and transmits alarm information to the 110 alarm center, the joint-action police responding unit, an information management library, a fixed telephone and a mobile telephone through the GSM and PSTN networks to realize anti-theft alarm. In the invention, an anti-theft alarm is transmitted through double networks by fully utilizing the double-network networked dialing manner through the GSM and PSTN networks, city calls from outside lines can be detected, alarm information is automatically recorded, the Contact ID alarm communication protocol is compatible, and the purpose demands of the anti-theft alarm for informatization, networking and intelligentization are satisfied. The double-network intelligent antitheft alarm system has the advantages of advanced technology, reliable performance, low cost and the like and can be widely applied.

The invention provides an intelligent kitchen temperature early warning device. The intelligent kitchen temperature early warning device comprises a plurality of temperature detectors which are distributed in a kitchen; each temperature detector is connected with a separate sprinkler and a separate RFID label; the plurality of temperature detectors are connected to a server through a concentrator; the server is connected with a mobile control terminal through a wireless network; and the concentrator is provided with an RFID reader-writer. By utilizing the intelligent kitchen temperature early warning device, multi-point intelligent monitoring on the kitchen can be performed, and loss caused by fire in the kitchen can be effectively avoided.

The invention provides a multi-mode detection alarm device and method for mistakenly locking a child in a vehicle. The multi-mode detection alarm device comprises a power supply, a power supply voltage stabilizer, a microwave radar module, a voice detection module, an IMU sensor, a single-chip microcomputer and an Internet of Things alarm module. The power supply supplies power to the microwave radar module, the voice detection module and the IMU sensor through the power supply voltage stabilizer. The microwave radar module, the voice detection module and the IMU sensor are connected with thesingle-chip microcomputer. The single-chip microcomputer is connected with the Internet of Things alarm module. And the Internet of Things alarm module is used for receiving the abnormal signal sent by the single-chip microcomputer and sending an alarm signal to the outside. The device is easy to install and convenient to use, the interior of the vehicle can be monitored through external equipmenton the premise that the vehicle does not need to be refitted, and the problem that a child locks the interior of the vehicle by mistake to cause danger is effectively solved.

The invention belongs to the field of microorganism detection, and particularly relates to a fungus detection method based on liquid-based slide making technology and fluorescent staining technology.A fluorescent staining solution is prepared from the following raw materials: 0.001% of fluorescent brightener 28, 10% of potassium hydroxide, 4% of dimethyl sulfoxide, 3.6% of sodium chloride, 10% ofglycerol, 0.01% of Evans blue, and the balance of purified water. Most of samples can be enriched together and made into slides through the liquid-based making technology, so that the positive detection rate is greatly improved. According to the fungus detection method based on liquid-based slide making technology and fluorescent staining technology, the fluorescent staining solution can make thestructures of mycelia and spores clearly visible; fungi are easy to identify, the sensitivity is high; the accuracy and the efficiency of the staining result interpretation are improved; and the detection rate is high, and the application range is wide.

The application discloses a method and device for air pollution alarm. The method comprises: determining a correlation function between pollutant concentration data and meteorological data according to the pollutant concentration data and meteorological data in an area needing monitoring within predetermined period of time; determining a predicted pollutant concentration based on real-time meteorological data of the area needing monitoring and the correlation function; and sending out an alarm instruction under the conditions of determining that the real-time pollutant concentration data in the area needing monitoring are higher than the predicted pollutant concentration and a difference between the real-time pollutant concentration data and the predicted pollutant concentration is greaterthan a preset value.

The embodiment of the invention relates to liveness detection and route convergence in a software-defined networking distributed system, and the invention describes techniques for improving speed of network convergence after node failure. In one example, a method includes the steps: storing, by SDN controller, an underlay routing table having routes for an underlay network of a data center and an overlay routing table having a set of routes for a virtual network of an overlay network for the data center, wherein the underlay network includes physical network switches, gateway routers, and a set of virtual routers executing on respective compute nodes of the data center; installing, within the underlay routing table, a route to a destination address assigned to a particular one of the virtual routers as an indicator of a reachability status to the particular virtual router in the underlay network. The SDN controller controls, based on presence or absence of the route within the underlay routing table, advertisement of the routes for the virtual network of the overlay network.

The invention provides an air conditioner control method and an air conditioner. The air conditioner control method comprises the following steps that the compressor frequency and the operating powerare detected, the operating power and a preset power value corresponding to the compressor frequency are compared, if the operating power is less than the preset power value corresponding to the compressor frequency, a refrigerant lacking signal is output; and otherwise, the air conditioner continues to operate. The air conditioner can realize the air conditioner control method. According to the air conditioner control method and the air conditioner, the compressor frequency and the operation power are detected, and the operating power is compared with the preset power value corresponding to the compressor frequency, so that whether refrigerants are in lack or not is judged, judgment is more accurate, and the false alarm situation is effectively avoided.

The invention relates to a cable damage prevention early warning method based on wake-up detection, and the method comprises the steps: S1, carrying out hardware detection on a preset cable anti-damage detection device which comprises a gyroscope sensor module, a wireless communication module, a main control module and a power supply; S2, collecting vibration data of the cable through a gyroscopesensor module; S3, judging whether the cable vibration data reaches a preset early warning condition or not, if not, executing the step S4 after the step S2 is executed for the first time, and if yes,continuing to execute the step S2 until the second time is reached, and if the cable vibration data reaches the early warning condition again, giving an alarm to the background server, otherwise, executing the step S4; S4, controlling a main control module to enter a sleep mode; and S5, starting or awakening the main control module at intervals of third time, and sequentially executing the stepsS1 to S4. Compared with the prior art, an alarm can be given automatically when there is construction near the cable, and the method has the advantages of low power consumption and false alarm prevention.

The invention provides a residual current detection and correction device, a detection method and an electrical fire monitoring system. The residual current detection and correction device comprises adetector and an upper computer. The data acquisition system is connected to the upper computer, the data acquisition system can be used for detecting and recording correction parameters under the influence of external factors, and the correction system is used for determining correction values according to the correction parameters recorded by the detector under the influence of the external factors; the correction system is connected to a data processing system, the data acquisition system is connected to the data processing system, and the data processing system is used for calculating a residual current actual output value according to a real-time residual current value detected by the data acquisition system and a correction value of the correction system. According to the residual current detection and correction device provided by the invention, the correction parameters acquired by the detector are sent to the upper computer, the correction system calculates a correction valueand feeds back the correction value to the detector, and the detector calculates the residual current actual output value, so that the situations of false alarm and missing alarm are avoided, and thesafety of an electrical fire monitoring system is improved.

The invention relates to a case event scene witness searching and target association analysis method. The method comprises steps of: S1, causing an alarm mobile terminal to automatically record and upload scene video and / or audio information based on a user-triggered alarm signal; S2, searching a potential witness mobile terminal list associated with the alarm mobile terminal according to the positioning information of the alarm mobile terminal, base station information and recording time; S3 , screening out a witness mobile terminal list based on the scene video and / or audio information, respective potential witness mobile terminals and the movement locus of the alarm mobile terminal; and S4, positioning each witness mobile terminal in the witness mobile terminal list and acquiring the user information of each witness mobile terminal. The invention also relates to a case event scene witness searching and target association analysis system. The method and the system can quickly and accurately search the witness mobile terminals, so that a public security system can obtain the witness information of a case event immediately so as to improve witness-taking accuracy and efficiency.

The invention discloses an assisting reminder method and system for a vehicle approaching from the rear area. The assisting reminder method for the vehicle approaching from the rear area comprises thesteps that whether a vehicle approaches from the rear area or not and whether a turning light of the vehicle approaching from the rear area is turned on or not are determined; distance, speed, and acceleration of the vehicle approaching from the rear area are collected; when it is determined that danger exists, a warning message is sent to a driver of a current vehicle to prompt the driver to observe a rear view mirror. The invention further discloses an assisting reminder system for the vehicle approaching from the rear area. The assisting reminder system for the vehicle approaching from therear area comprises a controller module, an image processing module, an alarm module, and a sensor module, wherein the image processing module, the alarm module, and the sensor module are connected with the controller module, and the image processing module is connected with an image acquisition device. according to the assisting reminder method and system for the vehicle approaching from the rear area, the speed, the acceleration, the turning light, and the distance from the current vehicle of a rear vehicle are collected to determine whether the current vehicle is in danger and to prompt the driver to observe the rear view mirror as an auxiliary reminder, and the speed, the acceleration, the turning light, and the distance from the current vehicle of a rear vehicle are necessary supplementary information for the driver to drive safely.

The invention provides an intelligent walking stick combined with a watch. The intelligent walking stick combined with the watch comprises an intelligent walking stick, a watch and an intelligent terminal, wherein a heart rate sensor, a body temperature sensor, an inertial sensor, a GPS (Global Position System) positioning device and a first wireless communication module are arranged on the intelligent walking stick; and the watch comprises an alarm switch, a microprocessor, a display device and a second wireless communication module. According to the intelligent walking stick combined with the watch disclosed by the invention, the physical condition of an old man going out can be known by the old man in person and guardians thereof, and the guardians can immediately know emergency encountered by the old man, so that the travel safety of the old man is further ensured.

The invention discloses a small and dense low-density lipoprotein cholesterol detection test kit and a detection method thereof. The test kit comprises a reagent 1 and a reagent 2, wherein the reagent1 contains a GOOD's buffer solution, a protective agent cyclodextrin, cholesteryl esterase, cholesterol oxidase, phospholipase, peroxidase, a stabilizer prionex, a preservative pc300 and a chromogenTOOS; the reagent 2 is prepared from a GOOD's buffer solution, triton X-405 and 4AAP. The detection method of the test kit comprises the following steps: treating a reagent 1 and a sample for a certain period of time under a specific condition according to a certain ratio, then adding a reagent 2 according to a certain ratio, treating for a certain period of time under the specific condition, andquantitatively determining the content of small and dense low-density lipoprotein cholesterol according to the change of an absorbance value. The small and dense low-density lipoprotein cholesterol detection test kit disclosed by the invention contains a cyclodextrin protective agent and a special stabilizer, is particularly high in detection accuracy and good in stability for high-value samples with relatively high concentrations of low-density lipoprotein cholesterol and small and dense low-density lipoprotein cholesterol, and can meet clinical examination requirements.

The invention discloses an automatic detection system for air hole defects of laser tailor-welded blanks, and belongs to the technical field of welding defect detection. The automatic detection system aims to solve the problems that in the prior art, existing equipment is poor in automatic detection capacity, low in detection efficiency and poor in detection accuracy, the situation of misinformation of the heads and the tails of the tailor-welded blanks occurs in misalignment welding, and the risk of missing detection exists. The automatic detection system comprises a transmitting device, a receiving device and a counting alarm. The transmitting device transmits high-intensity infrared light in a conical transmitting mode. The receiving device is arranged opposite to the transmitting device, the receiving device at least comprises receiving lenses which are arranged opposite to emergent light of the transmitting device, and the three receiving lenses are sequentially arranged in the length direction of a welding seam. The counting alarm comprises a counting module, a reset module and a sound control module. The three receiving lenses of the receiving device are electrically connected with the counting alarm, and when only the middle receiving lens is triggered, the sound control module of the counting alarm sends out an alarm signal.

The invention discloses a blood vessel calcification false alarm detection method based on brightness analysis. The method comprises the following steps: obtaining a calcification candidate area by utilizing a calcification detection algorithm aiming at a blood vessel image; performing morphological analysis on the calcification candidate area, and detecting whether a large-area calcification fills blood vessels or not and whether a small-area calcification occurs at a blood vessel bifurcation or not; for the condition that the large-area calcification fills blood vessels, adjusting a large-area calcification detection threshold value based on brightness analysis, and judging whether the calcification is true or not by using the large-area calcification detection threshold value; and for the condition that the small-area calcification occurs at the blood vessel bifurcation, judging whether the calcification is true or not by raising the detection threshold value of the small-area calcification. The method firstly performs morphological analysis on the calcification candidate area to find out the candidate area where false alarm condition easily occurs, then, adjusts the detection threshold value based on brightness analysis, and discriminates and eliminates false calcification so as to effectively avoid the occurrence of false alarm condition.

The invention discloses a door and window intrusion detection reporting method, device and equipment and a storage medium. The method comprises: acquiring environment attribute parameters of the environment where a door and window is located; collecting motion state parameters of doors and windows; and generating anti-theft report information based on the environment attribute parameters and the motion state parameters, and reporting the anti-theft report information to an anti-theft system. According to the method, the analysis of environmental factors is added, so that a certain false alarmcondition is avoided, and the reporting accuracy of door and window intrusion detection is relatively improved. In addition, the invention further provides a door and window intrusion detection reporting device and equipment and a storage medium, and the beneficial effects are the same as described above.