45results about How to "Eliminate false detections" patented technology

The invention relates to a car anti-collision radar with anti-interference and multi-target identification functions and a detection method thereof, belonging to the technical field of radar communication and the field of car electronics. The radar device and the detection method thereof not only can be used for measuring the distance and the relative speed of a target, but also can be used for identifying a plurality of targets in a complex environment and eliminating false targets; particularly, under the condition of simultaneous use of a plurality of radars with the same frequency range and the same system in a detection range, mutual interference among the radars can be suppressed so as to correctly judge a real target; and a modulation waveform of the radar is a major cycle TB repetitive waveform combined by a plurality of minor cycle TL modulation waveforms according to a random principle, and different radars are configured with different modulation waveforms in the major cycle, so interference signals of other radars can be analyzed out by a signal processing circuit so as to suppress interference and eliminate error detection caused by the interference.

A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.

The invention discloses a deformable part model object detection method based on color description, and belongs to the technical field of image target detection. The invention provides an intelligent object detection method which combines shape and color features. A deformable part model is used as a bottom frame, and a linguistics-based Color Name color descriptor is added into the original feature space of a histogram of oriented gradient when a template is trained to obtain a shape template of a specific object type and a color template of the specific object type; and finally, in a detection stage, an object is detected by a sliding window method characterized by the matching of dual templates, i.e. the shape template of the histogram of oriented gradient and the Color Name color template. The defect of wrong detection since the object is described by a single feature in a traditional method is overcome.

Provided is a refrigerator including: a storage chamber having an infrared sensor which detects a surface temperature of food; and an adjacent storage chamber starting from the infrared sensor as a start point and adjacent to a projection plane of the detection plane of the infrared sensor. The storage chamber and the adjacent storage chamber are maintained in the same temperature band so as to improve the accuracy of a temperature detected upon door open and close. Moreover, by suppressing condensation and temperature fluctuations of a thermistor itself which may cause an erroneous detection, it is possible to stably detect the food temperature.

The present invention aims at providing a method for detecting a color of a signal light from a moving vehicle such as railroad train. The method includes capturing an image from a camera mounted on the moving vehicle and extracting candidate regions in the image that contain light region. The method further includes classifying the candidate regions as a signal light region or a non-signal light region and identifying the color of the signal light region.

A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.

The present invention aims at providing a method for detecting a color of a signal light from a moving vehicle such as railroad train. The method includes capturing an image from a camera mounted on the moving vehicle and extracting candidate regions in the image that contain light region. The method further includes classifying the candidate regions as a signal light region or a non-signal light region and identifying the color of the signal light region.

A liquid leakage decision unit includes a leak sensor value storage part that stores a leak sensor value that is based on the intensity of a signal received from a gas sensor; a difference calculation part that, when the signal is received from the gas sensor, calculates, as a difference value, a value obtained by subtracting a previous leak sensor value stored in the leak sensor value storage part from a current leak sensor value; and a liquid leakage detection part that compares the difference value calculated by the difference calculation part with a preset threshold, thereby to detect liquid leakage in the column oven.

A numerical control apparatus having tool cutting edge detecting unit for detecting a cutting edge position of a tool mounted on a tool rest, comprises detection signal determining unit for determining, as effective, only a detection signal that is first inputted from among a plurality of detection signals which are continuously inputted from the tool cutting edge detecting unit. A signal which is detected until a preset time is elapsed after a first signal is received when the tool comes into contact with the touch sensor, and / or until the tool moves a predetermined distance, is determined as erroneous detection by the detection signal determining unit, and the signal is disenabled.

The invention relates to a device and a method for automatically detecting a fish biting a hook during fishing, in particular to a device and a method for automatically detecting and identifying the fish biting the hook for a fishing boat, and relates to the technical field of fishing. The device comprises a central processor (10), a fish-biting-hook detecting sensor (3), a storm detecting sensor (11), and a power module (8), wherein one end of the fish-biting-hook detecting sensor is fixed on a boat body through a base (2), the other end of the fish-biting-hook detecting sensor is threaded through a fish line, the storm detecting sensor is located inside the boat body (9), a signal wire of the storm detecting sensor is also connected with an input end of the central processor, and an output end of the central processor is connected with a fish indicator and a drive circuit of an automatic hook lifting device. When the fish bites the hook, the fish-biting-hook detecting sensor can detect and send a sensing signal which is then acquired and recognized by the central processor, the storm detecting sensor is used to eliminate the mistaken detection of the boat body caused by the storm, the device and the method can be used to implement the unattended fishing operation and have the positive effects of convenience, high efficiency, time saving, and labor saving.

A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise, are provided. The touch panel includes: a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

Provided herein is an encoder including a position detecting device provided with a gear mechanism and an optical encoder device. A housing includes a bearing holder provided between a first housing portion and a second housing portion of the housing. The bearing holder serves as a partition wall portion configured to separate the gear mechanism from the optical encoder device. If the gear mechanism is separated from the optical encoder device, abrasion powder or grease can be reliably prevented from scattering from the gear mechanism to adhere to constituent parts of the optical encoder device.

A numerical control apparatus having tool cutting edge detecting unit for detecting a cutting edge position of a tool mounted on a tool rest, comprises detection signal determining unit for determining, as effective, only a detection signal that is first inputted from among a plurality of detection signals which are continuously inputted from the tool cutting edge detecting unit. A signal which is detected until a preset time is elapsed after a first signal is received when the tool comes into contact with the touch sensor, and / or until the tool moves a predetermined distance, is determined as erroneous detection by the detection signal determining unit, and the signal is disenabled.

The method comprises: newly adding an erosion / dilation unit between the motion detection unit and the 3D interpolation unit; removing the miss-estimation and noise from the motion result by calculating the motion value of 1D or 2D neighborhood of current detection point and by making erosion for the motion value of point to be detected; interfusing the identical areas by making dilation for the erosion value of 1D or 2D neighborhood of current detection point.

The invention discloses a voice activity detection method and device, and a readable storage medium. The voice activity detection method comprises the steps: obtaining a collected voice signal; respectively adopting a voice noise reduction algorithm and a harmonic detection algorithm to judge whether the voice signal has voice activity or not; and when both the voice noise reduction algorithm andthe harmonic detection algorithm judge that the voice signal has voice activity, judging that the voice activity is detected from the voice signal. By adopting the scheme, the voice activity can be accurately detected.

The invention relates to a car anti-collision radar with anti-interference and multi-target identification functions and a detection method thereof, belonging to the technical field of radar communication and the field of car electronics. The radar device and the detection method thereof not only can be used for measuring the distance and the relative speed of a target, but also can be used for identifying a plurality of targets in a complex environment and eliminating false targets; particularly, under the condition of simultaneous use of a plurality of radars with the same frequency range and the same system in a detection range, mutual interference among the radars can be suppressed so as to correctly judge a real target; and a modulation waveform of the radar is a major cycle TB repetitive waveform combined by a plurality of minor cycle TL modulation waveforms according to a random principle, and different radars are configured with different modulation waveforms in the major cycle, so interference signals of other radars can be analyzed out by a signal processing circuit so as to suppress interference and eliminate error detection caused by the interference.

The invention discloses a movie-mode video signal processing method and a movie-mode video signal processing device. The movie-mode video signal processing method comprises the following steps of: judging whether scene change exists or not; according to one or combinations of heteropolar scene differences and homopolar four-scene differences in set numbers before and after the scene change, judging whether miscoding exists or not before and after a scene and judging signal types before and after the scene change; and according to judgment results, performing corresponding processing on subsequent signals. In the method and the device, by fully utilizing structural characteristics of movie-mode video signals and television video signals and pixel changes among frames and the scenes obtained by the splitting of frame data, the miscoding is effectively detected according to one of the heteropolar scene differences and homopolar four-scene differences, error detection caused by the change of video signal types is effectively eliminated, and the play quality of the movie-mode video signals is greatly improved.

A system, method and footwear sensor unit a footwear sensor unit removably attachable to footwear, the footwear sensor unit including: an Inertial Measurement Unit (IMU) including a 3-axis accelerometer and a 3-axis gyroscope, the IMU adapted to gather sensor data of detected movements of the footwear; and a storage device in electronic communication with the IMU, the storage device for storing the sensor data; and a communications module in electronic communication with the storage device, the communication module configured to transmit data to an external computing device.

A sensing method of touch point includes: detecting an edge region to obtain one or more effective touch point; and determining whether the effective touch point is a valid touch point according to a number of the effective touch point(s) and an area of each of the effective touch point(s). The valid touch point is the effective touch point with the number being equal to 1 and the area satisfying a size condition.

The invention discloses a method for detecting load unbalance of a brushless DC motor. The method comprises the following steps of: collecting a speed signal and a phase voltage signal of the brushless DC motor; integrating a historical acquisition value with a target speed signal through two processes of a fuzzy controller; establishing a corresponding fuzzy decision table; realizing an intelligent judgment and a decision of the load unbalance. According to the method for detecting the load unbalance of the brushless DC motor, the distortion data of interference signal and variation data of stepless speed regulation are eliminated, the error detection of the load unbalance is eliminated, the traditional detection device for high current is not required, and the safety of the system is improved. The invention is a method for detecting the dynamic load imbalance of the brushless DC motor which is low in cost, simple and accurate in detection, and easy to realize.

Systems and methods to identify an object using a radar system involve arranging an array of antenna elements into two or more subarrays with a tilt angle relative to each other. Each of the two or more subarrays includes two or more antenna elements among the array of antenna elements. A method includes receiving reflected signals at each of the two or more subarrays resulting respectively from transmitting transmit signals from the two or more subarrays, and processing the reflected signals at each of the two or more subarrays to obtain an amplitude associated with each azimuth angle in a range of azimuth angles. A location of the object is determined as the azimuth angle in the range of azimuth angles at which the amplitude exceeds a threshold value.

The invention discloses an on-board GPS device having a power supply, signal isolation function. The on-board GPS device comprises a GPS module, a GSM module, a power supply module, a MCU processor, a switch amount acquisition interface, a bus interface, and a sensor acquisition interface. The switch amount acquisition interface, the bus interface, and the sensor acquisition interface are respectively connected with the MCU processor, and the power supply module is respectively connected with the GPS module and the GSM module. The power supply module is connected with the MCU processor by an isolation power supply device. The GSM module is connected with the MCU processor by an isolation signal device. The GPS module is connected with the GSM module. By adopting the above mentioned structure, the integrated system is simplified, and the stability and the reliability are improved.

A sensing method of touch point includes: detecting an edge region to obtain one or more effective touch point; and determining whether the effective touch point is a valid touch point according to a number of the effective touch point(s) and an area of each of the effective touch point(s). The valid touch point is the effective touch point with the number being equal to 1 and the area satisfying a size condition.

The embodiment of the invention provides a remnant error detection recognition method and device and image processing equipment. The method comprises the steps: carrying out the foreground detection of a current frame image, obtaining a foreground image of the current frame image, and enabling the foreground image to comprise a remnant foreground image; clustering the contours in the remaining foreground image into groups to serve as candidate regions of a remaining object; and comparing the candidate region of the remnant with a reference background image, judging whether the candidate regionof the remnant is matched with the reference background image or not, If so, considering that the remnant is subjected to error detection. A detected candidate region (blob), which is regarded as a remnant, is compared with a cache background (reference background image), If the detected candidate region (blob) matches the cache background (reference background image), the candidate region (blob)is considered not to be a remnant, and it is determined that detection is erroneous. And a judgment result is fed back to the foreground detection module, and corresponding processing is performed through the foreground detection module, so that wrong detection of remnants is eliminated to a certain extent.

There is provided a storage room in which an infrared sensor detecting a surface temperature of a food is installed, and an adjacent storage room which is adjacent on a projection surface of a detection surface of the infrared sensor starting from the infrared sensor, an improvement of precision of a detection temperature at a time of opening and closing a door can be achieved by setting the storage room and the adjacent storage room to the same temperature zone, and a temperature of the food can be stably detected by suppressing a dew condensation and a temperature fluctuation of a thermistor itself which are factors of an erroneous detection.

The invention provides a banknote identification device which is simple in structure and can eliminate error detection of banknote inserting which is caused by external light influence coming in froma banknote inserting port. The banknote identification device comprises a reflection sensor (S1), a high pass filter (30) and a banknote inserting part determination part (31). The reflection sensor (S1) is arranged in an inserting guiding member which is used for guiding the banknote which is inserted from the banknote inserting port (11) and is used for transmitting regulated AC signal light andreceiving reflection light. The high pass filter (30) allows a frequency band containing the frequency band of a regulated AC signal light in a receiving signal outputted by the reflection sensor (S1) to pass; the banknote inserting determination part (31) determines whether the banknote (100) is inserted into the banknote inserting guiding member (12) through a receiving signal of the high passfilter (30).

The invention discloses a detection method and system for a position of a fetal nape transparent object with combination of medical statistical information. The method comprises the realization process: establishing a standard image database, to obtain the average offset value of a head area and a fetal nape transparent object thickness (NT) area; inputting an ultrasound image to obtain conversionparameters of the pixel distance and the actual d distance of the ultrasound image; determining the head area; and through the determined head area, and the average offset value between the head areaand the NT area, determining the NT area, namely, the position of the fetal nape transparent object. The position of the head area is determined firstly, the NT area is determined by the average offset value of the head area and the NT area, and the overall accuracy and stability of the detection method are improved by combining the standard or prior knowledge of the NT ultrasound image.