79results about How to "Reduce the chance of false positives" patented technology

The invention relates to global-positioning technology, which provides a bus-stop reporting device aiming at the defect of the prior art that reporting stop by a manual-operation machine is easy to report mistakenly. The invention comprises a loudspeaker and a stop information storage module that is used for storing stop information tables recording the name and position information of each stop; a GPS positioning module, which is used for receiving GPS signals and generating and outputting information of the present position; a matching module, which is used for receiving the information of the present position to match with the stop position information recorded in the stop information tables and play arriving prompt messages including a matched stop name by the loudspeaker. The invention further provides a bus-stop reporting method. The matching between the information of the present position and stop position information in the stop information tables is automatically realized without manual intervention, which can reduce wrong reporting rate in greatest degree; the device is connected to a bus directing center with the help of mobile communication network, which leads the bus directing center to know the situation of buses at real time and is helpful for further optimization of bus schedule.

The invention relates to a novel washing machine water treatment device which solves the problem of high misinformation rate in the existing washing machine water treatment device. The washing machine water treatment device comprises a base plate, wherein a water pipe and a vent pipe are laid on the base plate; the water pipe is provided with a dechlorination device, a Venturi pipe, a silver ion generator and a gas-water mixing device; the base plate is also provided with an ozone generator and a controller; the water pipe is provided with a waterflow sensing device; the ozone generator comprises an air treatment device and an ozone generator which are arranged on the vent pipe; an air flow sensing device is arranged between the air treatment device and ozone generator; the waterflow sensing device is used for sensing a waterflow signal in the water pipe; the air flow sensing device is used for sensing an air flow signal in the vent pipe, and transmitting the signal into the controller; and the controller can control the silver ion generator, ozone generator and air treatment device to start working when receiving any of the signals.

The invention discloses an overhead line early warning system obstacle recognition method based on a time convolution neural network, and the method comprises the following steps: constructing a timeconvolution module, and carrying out pre-training of the convolution network module by employing an ImageNet image data set; constructing a double-layer long-short-term memory neural network module, and inputting an output result of the time convolutional neural network module into the long-short-term memory neural network module; utilizing an Adam optimization algorithm to solve a weight value and a threshold value of the long-term and short-term memory neural network module to enable the model to achieve convergence; performing neural network hyper-parameter optimization by utilizing a gridsearch method; and inputting an obstacle picture into the trained neural network to carry out obstacle recognition. The method has the advantages that the type of an obstacle can be automatically recognized, the false alarm probability is reduced, whether the obstacle exists or not is judged, the workload of dispatching personnel and line patrol personnel is greatly reduced, and the safety and stability of a power grid are improved.

The invention discloses a method, a device and a system of testing of chip frequency, and relates to the field of electricity. The method, the device and the system of the testing of the chip frequency are capable of improving the chip frequency and reliability of a testing result, and reducing production cost of a chip. The method of the testing of the chip frequency comprises: acquiring test vectors of each function corresponded by each effective path of the chip; converting formats of the vectors of the function testing into the formats which an automatic testing appliance supports; each testing vector of the functions after conversion is stored into a memory of the chip to enable the automatic testing appliance to run the testing vectors of each function stored inside the memory of the chip, and to acquire the highest frequency of each testing vector of functions during the running of the chip respectively.

The invention discloses a human eye fatigue detecting method. The human eye fatigue detecting method includes: outputting a final human face area via human face detection by a human face detector and a skin color model; realizing human eye positioning on the final human face area via a human eye detector and a human eye compositing template, outputting the precisely positioned human eye area, and updating the human eye compositing template; subjecting the precisely positioned human eye area to human eye outline point sampling so as to obtain sampling points, subjecting the sampling points to ellipse fitting, judging human eyes to be closed when ratios between major semi-axes and minor semi-axes are smaller than a second threshold value, or judging the human eyes to be open; and judging the human eyes to be in fatigue state when the human eyes are in closed state in continuous N frames or occupation of the closed state within a threshold time is larger than the threshold value ratios, or judging the human eyes to be in waking state. The human eye fatigue detecting method is less prone to effect of individual factors and light rays, is strong in robustness, instantaneity and accuracy, and effectively lowers the possibility of misinformation.

A method and a device for ultra vires vulnerability detection are disclosed. The method includes: triggering a plurality of service logics of a to-be-detected system through a first account; respectively obtaining a first service request corresponding to each of the service logics triggered by the first account and first returning data corresponding to each first service request, wherein an identity identification parameter in the first service request is an identity identification parameter corresponding to the first account; modifying the identity identification parameter in each first service request to the identity identification parameters corresponding to a second account respectively, and obtaining second returning data corresponding to each first service request after the identityidentification parameters are modified, respectively; if a second service request exists in the first service request, determined that the service logic corresponding to the second service request has an ultra vires vulnerability, and similarity between the first returning data and the second returning data corresponding to the second service request is greater than a first similarity threshold.The scheme can improve detection efficiency and reduce false alarm rate of ultra vires vulnerability detection.

The invention relates to a multifunctional intelligent walking stick applicable to old people. The multifunctional intelligent walking stick comprises a walking stick body, a power supply device and a control system. The walking stick body is of a hollow structure; the power supply device is connected with the control system; the control system comprises a control module, a toppling alarm module and a function module; the control module is connected with the toppling alarm module and the function module; the toppling alarm module comprises a GSM (Global System for Mobile Communication) module, a GPS (Global Positioning System) module and a detection module; the function module comprises an illumination module, a voice module, a clock module, a sound receiving module, and control keys and interfaces arranged on the walking stick body; the control module is used for judging whether old people topple through data acquired by the toppling alarm module and carrying out sound and light alarm; the GPS module is used for acquiring current position information and sending an alarm short message to a designated number. The multifunctional intelligent walking stick disclosed by the invention has the functions of illuminating, receiving sound, timekeeping via voice and automatically alarming when old people topple, and is convenient, practical, safe and reliable.

The invention discloses a wheel derailment alarm method. The method comprises the steps that when a vibration signal is obtained, the vibration signal is processed to obtain a sample to be analyzed; time domain identification is conducted on the sample to be analyzed, and the time domain derailment identification result is obtained; a corresponding spectrum is obtained by conducting fast Fourier transform on the sample to be analyzed; frequency domain identification is conducted on the spectrum, and the frequency domain derailment identification result is obtained; derailment analysis is carried out according to the time domain derailment identification result and/or the frequency domain derailment identification result; and if the obtained analysis result is wheel derailment, alarm operation is carried out. The method can accurately carry out derailment alarm, the whole derailment alarm process is stable and reliable, and the probability of misinformation is greatly reduced. The invention further discloses a wheel derailment alarm system which has the above beneficial effects.

The invented equipment is capable of monitoring ground wire, hot wire and zero line fully, preventing reverse connection between hot wire and zero line, automatic resetting, possible to be enbended into diversified electric apparatus, and overcoming disadvantages in current technique. The equipment includes switching circuit, rectifying circuit and relay. Hot wire and zero line connected to power source through rectifying circuit, switching circuit provides power for the relay. After being connected to the relay, then the hot wire, zero line and ground wire are connected to electric apparatus. Based on/off state of ground wire, the switching circuit controls on/off of power source. Monitoring end of the switching circuit is connected to ground wire. The rectifying circuit is utilized to rectify electrical source for supplying power for the relay, which controls on/off of hot wire, zero line and ground wire.

The invention discloses a realtime fluorescent quantitative RT-qPCR kit capable of detecting CYVCV, CTV and CTLV synchronously. The RT-qPCR kit comprises three pairs of virus-specific RT-qPCR primers which are shown as in SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5 and SEQ ID NO:6. By using the RT-qPCR kit, synchronous detection and virus quantitation of CYVCV, CTV and CTLV can be realized through a RT-qPCR reaction. Compared with conventional RT-PCR detection methods, a method using the RT-qPCR kit has the advantages that sensitivity in detecting CYVCV, CTV and CTLV is improved by higher than 100 times, detection time is saved higher than 3 times, and pollution probability is lowered higher than 30%. The RT-qPCR kit has a good application prospect in diagnosing disease occurrence, monitoring virus prevalence and maintaining safety of citrus industry.

The invention discloses a method for determining pesticide residues in edible plant enzymes, which comprises the following steps: (1) preparing a pesticide standard stock solution from a pesticide standard substance, carrying out QuEChERS pretreatment on plant enzymes without pesticide residues, and preparing a standard working curve by using liquid chromatography triple quadrupole tandem mass spectrometry; (2) carrying out QuEChERS pretreatment on the edible plant enzyme to be analyzed to obtain a filtrate; and (3) carrying out liquid chromatography triple quadrupole tandem mass spectrometryanalysis and determination on the filtrate, and analyzing to obtain the content of pesticide residues in the edible plant enzyme. According to the method disclosed by the invention, the QuEChERS and the liquid chromatography-tandem triple quadrupole mass spectrometry are used for determining the pesticide residues of the edible plant enzyme for the first time; at least 65 kinds of pesticide residues can be detected at the same time, an important theoretical basis is provided for detection of pesticide residues in edible plant enzymes in the future, and reference value is achieved for formulation of related pesticide residue detection standards.

The invention provides a kit and a method for detecting NTRK gene fusion. The kit includes at least one of four tubes of reagents, the 4 tubes of the reagents contain specific primers and probes designed for 12 fusion types of a NTRK gene, one kind of NTRK1 fusion, one kind of NTRK2 fusion and one kind of NTRK3 fusion are detected in each tube, interference between the primers of the same gene canbe excluded, thus the stability of a reaction system is greatly improved, the detection sensitivity and specificity are improved, and the probability of occurrence of false positives is decreased.

Embodiments of the invention disclose a method and an apparatus for detecting falloff prevention. The method comprises: turning on an infrared detection light sensor and turning off a body temperature sensor; if the infrared detection light sensor detects that a barrier exists, turning on the body temperature sensor; judging whether the temperature of the barrier is within a human body temperature range or not through the body temperature sensor; and if not, determining that the barrier is not a human body, and sending prompt information that a mobile terminal falls off to a user. Whether the mobile terminal is truly worn or other barrier exists when being just worn through the infrared light sensor and the body temperature sensor, and on the premise of not increasing power consumption, the accuracy is greatly improved and the probability of false alarm is reduced, so that parents can use the mobile terminal more safely.

A safety devices includes the switch circu it, the rectification circuit and the relays. The hot wires and neutral wire connected to power source through the rectification circuit and the switch circuits provides electrical power for relays, which then connect to electric equipments. The monitor end of the switch connected to the ground is utilized to control the on/off, of the power source based on the state of the on/off of the grounding wire. The relays control the on/off of the hot wire, the neutral wire connected to the power source and the grounding wire. The invention overcoming the disadvantages in the prior art, has the features of possible to monitor hot wires, neutral wires and grounding wires, preventing reverse connection as well as simple structure, small size and possible to be embedded into electrical appliances.

The invention relates to the technical field of water leakage detection, in particular to a water leakage detection line and a water leakage detection system applying the same. The water leakage detection line comprises a cable skeleton; a conductive induction line; an insulating protection layer, wrapping the cable framework and the conductive induction lines, and water permeable holes being formed in the insulating protection layer; a first ribbon, one end of the first ribbon being arranged on the insulating protective layer, and the other end being provided with a first locking part; and asecond ribbon, arranged on the insulating protective layer, can be matched with the first ribbon to surround the pipeline to be detected, and being provided with a second locking part matched with thefirst locking part. The cable skeleton and the conductive induction lines are wrapped by the insulation protection layer. The situation that the conductive induction line falls off from the cable framework and is short-circuited is avoided. The false alarm probability is reduced, the water leakage detection line is fixed in a mechanical locking mode, and the situation that the water leakage detection line falls off from the to-be-detected pipeline and cannot detect a water leakage signal is avoided.

The invention relates to a kit and application of the kit, in particular to a kit for detecting swine mycoplasmal pneumonia based on direct PCR (Polymerase Chain Reaction) and application of the kit, and belongs to the technical field of biologics. The kit provided by the invention comprises the following reagents: lysate, a PCR amplification reagent, a positive control and a negative control. By adopting the kit, the swine mycoplasmal pneumonia can be rapidly and accurately detected. When the kit is used, single samples infected with swine mycoplasma pneumonia can be detected, hybrid infection of clinical cases can also be detected, and the kit also can be applied to general investigation, molecular epidemiological investigation and vaccine screening and monitoring for swine mycoplasma pneumonia pathogeny.

The invention provides an on-line rail vehicle bearing failure detection device and method. The device comprises a low-noise track located on a path by which a rail vehicle to be detected passes; a vibration sensing module comprising at least one vibration sensor unit and a signal output end and disposed on the low-noise track; a microphone module including at least one microphone unit and a signal output end and located at position at a side of the low-noise track and close to the vibration sensing module; and a data processing module including a signal input end and a signal output end, wherein the signal input end of the data processing module is connected with the signal output end of the vibration sensing module and the signal output end of the microphone module. The on-line rail vehicle bearing failure detection device and method can effectively improve the bearing failure detection rate and reduce the fault omitting probability of bearing failure.

The invention discloses a focusing system and method of a shield tunneling machine. The system comprises a current source, an emission electrode, a shielding electrode, a backflow electrode and a current detector. Under the condition that the current source provides power for the emission electrode and the backflow electrode, the shield tunneling machine emits current by use of a first mode. Underthe condition that the current source provides power for the shielding electrode and the backflow electrode, the shielding tunneling machine emits current by use of a second mode. The focusing systemcomprises a controller. The controller is used for controlling the superposition proportion of the first mode and the second mode when the focusing system emits current by use of the first mode and the second mode so as to allow the current detected by the current detector to be zero. According to the invention, a technical problem is solved that by use of a focusing system of the hardware focusing, measurement precision of apparent resistivity is affected and system error reporting is easily caused in the prior art.