12results about How to "Prevent false detection" patented technology

The invention provides a passenger vehicle door anti-pinch control method and system based on visual identification. Belongs to the technical field of intelligent traffic and vehicle safety control. The method comprises the following steps: acquiring a vehicle door area video picture through a video acquisition module, and generating vehicle door area original video data; performing video preprocessing according to the original video data of the vehicle door area to generate preprocessed video data; inputting the preprocessed video data into a target recognition module, recognizing a human body or a carried object target, and generating target recognition data; performing target feature extraction according to the target identification data to generate target feature data; according to the passenger-carrying vehicle door anti-pinch control method based on visual identification, the response speed of vehicle door anti-pinch is increased, a response can be made immediately when a target just enters a dangerous area, and potential safety hazards caused by response lag are reduced.

This utility model relates to a testing device, and more particularly to a bottled water quality testing device, comprising a housing, a controller, a first conveyor belt, a testing probe, a fixing frame, and absorbent cotton, etc. The first conveyor belt is located at the bottom of the housing, and a moving mechanism is installed on the inner wall of the housing. The testing probe is connected to the moving mechanism. The controller is installed on one side of the housing, and the testing probe is electrically connected to the controller. A fixing frame is fixedly connected to the side of the housing opposite to the moving mechanism, and a liquid storage frame is slidably connected to the fixing frame. In this utility model, the testing probe is wiped and disinfected with absorbent cotton and disinfectant alcohol, ensuring the cleanliness and hygiene of the testing probe. Simultaneously, the alcohol on the surface of the testing probe evaporates on its own, reaching a dry state, providing a guarantee for subsequent testing work and ensuring the accuracy of the testing.

This invention relates to an insulation monitoring device, comprising: a signal generation unit that generates a measurement signal having a preset voltage and applies the measurement signal to ground through a protective conductor connected to one end of the signal generation unit; a coupling resistor connected to the transmission line; a signal detection unit that includes a detection resistor disposed between the coupling resistor and the other end of the signal generation unit, and detects the voltage of the measurement signal distributed in the internal resistance of the insulation monitoring device formed by the coupling resistor and the detection resistor based on the voltage difference across the detection resistor; and a control unit that detects transient voltages caused by the charging and discharging of a system capacitor formed by parasitic capacitance between the transmission line and the ground from the voltage detected by the signal detection unit, and confirms the connection status of the insulation monitoring device to the transmission line and the ground based on the result of detecting the transient voltage.

The invention discloses a motor stall detection system and method, and relates to the technical field of motor control, and the system comprises a preset register group which is used for storing a preset number of continuous electrical half cycles; wherein the preset number of continuous electrical half cycles comprise the latest electrical half cycle; the calculation circuit is connected with the preset register block and is used for calculating an electrical cycle detection value according to all electrical half cycles in the preset register block; the stall fault judgment circuit is connected with the calculation circuit and is used for determining that the operation condition of the motor to be detected is a motor stall state when the electrical cycle detection value is greater than or equal to a stall threshold value; according to the method, the counter electromotive force between the rising current quadrant and the falling current quadrant can be compared through electrical cycle detection, so that the stall state of the motor is rapidly and conveniently detected, and the detection cost and the operation complexity are reduced; and the motor stall detection can be realized by adopting a digital circuit, the occupied area is small, and the cost is low.

The application discloses an arc length visual detection method, system and device for electric arc additive manufacturing, and relates to the technical field of additive manufacturing detection. The method comprises the following steps: acquiring an original electric arc image; preprocessing the original electric arc image to generate an edge information image; determining a width value at an electric arc peak value in a first dashed line frame in the edge information image; when the width value at the electric arc peak value is greater than or equal to a set threshold value, determining that the edge information image is in an electric arc peak value stage, and deleting the edge information image data in the electric arc peak value stage; and when the width value at the electric arc peak value is less than the set threshold value, determining that the edge information image is in an electric arc base value stage, and generating an arc length change curve according to the edge information image in the electric arc base value stage, thereby solving the problem of difficulty in electric arc arc length detection in electric arc additive manufacturing based on non-melting electrode argon welding.

The utility model discloses a kind of FPC transparent reinforcing missed pasting detection devices, which can avoid missed detection of FPC transparent reinforcing missed pasting detection devices caused by visual fatigue. The utility model is used for the missed pasting detection of FPC reinforcing plate, two detection windows are opened in the first side surface of FPC, a connecting circuit is provided between the two detection windows, the first side surface of FPC is used for pasting transparent reinforcing plate, the four peripheral edges of transparent reinforcing plate are located within the four peripheral edge range of FPC, and the FPC transparent reinforcing missed pasting detection device comprises a resistance detection device and two probes, the two probes are electrically connected with the resistance detection device, a loop is formed between the two probes and the resistance detection device when the two probes are short-circuited, and the probe is used for aligned insertion into the detection window for missed pasting detection.

This disclosure relates to a stop line detection device that, based on images captured by a front camera of its own vehicle, identifies the boundary lines of the road and lanes in which the vehicle travels, and detects the stop line at an intersection ahead of the vehicle. The stop line detection device comprises: an intersection area detection unit set within the road in which the vehicle travels, corresponding to the intersection area; a pedestrian crossing detection unit that detects pedestrian crossings within the intersection area; a stop line search area setting unit set within the lane in which the vehicle travels, extending from the pedestrian crossing towards the vehicle; and a stop line detection unit that detects stop lines within the stop line search area, wherein the depth of the stop line search area in the direction of extension of the driving lane is less than twice the depth of the pedestrian crossing.

The invention relates to an industrial equipment electromagnetic radiation covert communication detection data processing method, and belongs to the technical field of communication data processing. The method comprises the following steps: firstly comparing the similarity between the change condition of each environmental data and the change condition of noise, determining the relative influence weight of each environmental data on the noise, then determining a stable change time period in the recent data based on the electromagnetic intensity value of the recent data, and taking the environmental data in the stable change time period as a benchmark reference to determine the relative influence weight of each environmental data on the noise. The method comprises the following steps: comparing the deviation of environment data at the current moment relative to a benchmark reference, determining an adjustment factor in combination with a relative influence weight, and determining a self-adaptive detection benchmark suitable for current detection according to the adjustment factor, thereby effectively eliminating the influence of noise change generated by the fluctuation of a current environment state relative to a recent stable state on the electromagnetic intensity signal detection quantity. Through improvement of an electromagnetic radiation data processing method, a basis reference is provided for more accurate detection of covert communication in an industrial scene.

The utility model discloses a novel solenoid valve detection device comprising a base plate, the bottom of the base plate is uniformly provided with pillars, the middle part of the base plate is transversely provided with a through groove which is through up and down, the through groove is provided with a driving assembly, the driving assembly is connected with two groups of corresponding L-shaped support rods, the base plate is provided with a support plate, and the support plate is connected with the L-shaped support rods. A detection groove is slidably connected to the supporting plate, an electromagnetic valve body is installed in the detection groove, and the electromagnetic valve body is located between the two L-shaped supporting rods; a detection assembly is arranged at the top of the bottom plate and used for conducting air tightness detection on the electromagnetic valve body, the detection assembly is connected with connectors at the two ends of the electromagnetic valve body, and a drying assembly is arranged at the top of the bottom plate and used for conducting hot air drying on the detected electromagnetic valve body. The utility model belongs to the technical field of electromagnetic valve detection, and particularly relates to a novel electromagnetic valve detection device.

The embodiment of the utility model discloses an interactive sensing assembly, an area light source lamp panel and a table lamp. The interactive sensing assembly comprises an outer frame which comprises a lower frame plate and a side frame plate, the lower frame plate is provided with a lower window, and the side frame plate is provided with a side window; the touch sensing unit comprises a front seat body and an electrode fixedly connected with the front seat body, and the front seat body covers the inner side of the side window and is provided with a light transmitting part opposite to the side window; the rear seat body is made of a light-transmitting material and covers the inner side of the lower window; the flexible circuit board comprises a front part and a rear part formed by extending backwards from the upper edge of the front part, and the front part is arranged between the front seat body and the rear seat body and is used for shading; the indicating lamp is arranged on one surface, facing the light-transmitting part, of the front part; and the photosensitive element is arranged on one surface, facing the rear seat body, of the rear part and is used for receiving light entering through the rear seat body. The indicating lamp and the photosensitive element are installed on the flexible circuit board in a concentrated mode, circuit connection is simplified, assembly is simpler and more convenient, and false detection of the photosensitive element is avoided through reasonable shielding.

The utility model discloses a controller switch wake-up circuit, and belongs to the field of electronic circuits. Aiming at the problems of high power consumption and high cost of the existing switch wake-up circuit, the utility model provides a controller switch wake-up circuit which comprises a wake-up sub-circuit and an acquisition sub-circuit which are arranged in parallel, and one end of the wake-up sub-circuit and one end of the acquisition sub-circuit are respectively connected with a switch signal; the input end of the wake-up sub-circuit is a switching signal, and the output end is a wake-up source signal for waking up the single-chip microcomputer. The input end of the acquisition sub-circuit is a switching signal, the output end of the acquisition sub-circuit is an acquisition signal of the switching signal, and a wake-up source signal of the wake-up sub-circuit and the acquisition signal of the acquisition sub-circuit are respectively connected with the single chip microcomputer. Through the arrangement of the wake-up sub-circuit, on one hand, the power consumption of the system is obviously reduced, and on the other hand, the wake-up sub-circuit can connect a plurality of switch signals in parallel to serve as a wake-up source signal to be input to the singlechip for wake-up, so that the number of GPIO (General Purpose Input / Output) ports of the singlechip is reduced, the hardware cost is reduced, and the compatibility is improved.

The embodiment of the invention discloses a water entry detection method and device, equipment and a storage medium, the method is applied to electronic equipment, the method comprises the steps that a first detection result and a second detection result of the electronic equipment are obtained, and the first detection result and the second detection result are both used for indicating that the electronic equipment enters water or does not enter water; the first detection result is a detection result of a touch screen of the electronic equipment, the second detection result is a detection result determined according to acquired target data, and the target data is data used for reflecting the surrounding environment of the electronic equipment; and under the condition that the first detection result and the second detection result are that the electronic equipment enters the water, determining that the electronic equipment enters the water. Therefore, whether the electronic equipment enters water or not can be accurately detected, and the use reliability of the electronic equipment is improved.