8results about How to "Shorten the detection process" patented technology

The application provides a leakage detection method of a fuel evaporation system and an electronic device, and is applied to a fuel evaporation system of a vehicle. The method comprises the following steps: when the parking time of the vehicle exceeds a first preset time length, and the enabled working condition of the fuel evaporation system is normal, the vacuum degree of a first space in which a first electric control valve is in a closed state is obtained; a first diagnosis strategy or a second diagnosis strategy is selected according to the vacuum degree, and leakage detection is performed on the first space and a second space to obtain a detection result, wherein the first diagnosis strategy is a diagnosis strategy corresponding to that the first space has no leakage when the absolute value of the vacuum degree is greater than a first preset threshold. In this way, an air pump does not need to be additionally arranged, so that the hardware cost of the system is reduced. In addition, different diagnosis strategies are beneficial to improving the diagnosis completion rate. Since the first space of the fuel evaporation system rarely leaks, the frequency of using the first diagnosis strategy is usually high, and the detection process of the first diagnosis strategy is less, so that the diagnosis efficiency is improved.

This utility model discloses a safety performance testing device for new energy vehicles, including an electric platform cabinet. A display screen is electrically connected to a built-in control board near the top of the front of the electric platform cabinet to intuitively display the results of different tests. A function key area is fixedly connected to the top of the display screen on the front of the electric platform cabinet, allowing operation of the entire safety performance testing program using multiple buttons within the function key area. A resistance tester is installed at the bottom of the inner part of the electric platform cabinet to test the resistance values ​​of the internal circuits. This utility model integrates multiple functions such as fast charging testing, slow charging testing, resistance testing, and potential equalization testing into a single electric platform cabinet, enabling the completion of core safety performance testing of new energy vehicles without the need for multi-station transfers. This significantly shortens the testing process, improves testing efficiency, and reduces equipment footprint and investment costs.

The invention discloses a child sound detection model training method, a child mode starting method and related devices, and the child sound detection model training method comprises the steps: inputting a training voice frame into a child sound detection model, and obtaining a prediction category and a prediction probability outputted by the child sound detection model, the prediction category comprising an adult male, an adult female and a child; determining classification loss by using the prediction category and an actual category corresponding to the training voice frame; and when the prediction category is a child and the actual category is not a child, determining a misinformation loss by using a prediction probability corresponding to the prediction category, and performing parameter adjustment on the child sound detection model by using the classification loss and the false alarm loss. The child sound detection model obtained through training according to the scheme has higher recognition accuracy, and mistaken detection is reduced.

Provided are a method and apparatus for steering wheel touch detection, the steering wheel comprising at least one touch detection region, and at least one touch detection sensor being provided in each touch detection region. The method comprises: for each touch detection region, generating multiple reference signals which correspond to multiple specific frequencies on a one-to-one basis; respectively applying each reference signal to a touch detection sensor in the touch detection region, and acquiring each touch detection signal under each reference signal from the touch detection sensor; acquiring a measurement value of each touch detection signal; according to the measurement values of the touch detection signals, determining touch detection states respectively corresponding to each touch detection signal; and on the basis of the number of various touch detection states in the touch detection states corresponding to each touch detection signal, determining the touch state of this touch detection region of the steering wheel, wherein the touch states comprise a non-hands-off state, a hands-off state and an invalid state.

The utility model relates to appearance defect detection of a mobile phone middle frame, and provides an intelligent detection device for appearance defects of a mobile phone middle frame, which aims to solve the problems of high manual dependence, huge labor cost, frequent error detection and missing detection, low efficiency and overlong assembly line in the existing appearance defect detection of the mobile phone middle frame. A linear transplanting module is arranged at the rear end of the feeding platform and transfers products on the feeding platform to a 3D / BG face detection module, the 3D / BG face detection module and a BR / CR face detection module are arranged side by side in the left-right direction at intervals, a CG long edge detection module is arranged at the interval position between the 3D / BG face detection module and the BR / CR face detection module, and a CG short edge detection module is arranged on the other side of the BR / CR face detection module. The CG short edge detection device has the advantages of being small in manual dependence, low in labor cost, low in error detection and omission ratio, high in efficiency and short in assembly line.

This invention proposes a transfer device and a front-end module including the same. The transfer device is used to transport a wafer and includes a body and a pickup component. The pickup component is movably connected to the body and can switch between a first detection state and a second detection state. The pickup component includes a first toothed element and a second toothed element. When the pickup component is in the first detection state, the first toothed element supports the wafer and the second toothed element is not in contact with the wafer. When the pickup component is in the second detection state, the second toothed element supports the wafer and the first toothed element is not in contact with the wafer.

The utility model discloses a waste water ammonia nitrogen content detection device, including detection piece and strutting piece, detection piece includes liquid storage cylinder and melting piece, liquid storage cylinder upper and lower both ends are through setting, and liquid storage cylinder outer circumferential surface bottom is equipped with external thread, melting piece includes screw box, screw box screw thread assembly is in the liquid storage cylinder bottom, and the liquid storage cylinder bottom is equipped with external thread. A screw box is arranged in the liquid storage cylinder, the screw box is assembled and communicated with an external thread on the liquid storage cylinder, a material containing box is vertically fixed to the inner bottom surface of the screw box, a detection reagent is filled in the material containing box, the material containing box is inserted into the liquid storage cylinder, a water-soluble membrane is horizontally fixed to the top end of the material containing box, and supporting pieces are symmetrically arranged on the two sides of the liquid storage cylinder. The utility model overcomes the problems that when the ammonia-nitrogen wastewater is detected at present, a wastewater sample is firstly extracted and injected into a test tube, and then a detection reagent is added into the test tube, so that the operation process is more troublesome, the detection reagent needs to be additionally carried, and then the detection reagent is dripped into the test tube, and the convenience of ammonia-nitrogen wastewater detection is influenced.

The invention relates to a new energy motor shaft detection device which comprises a detection box, a platform is arranged in the detection box, and the platform is provided with a feeding mechanism, a first detection mechanism, a second detection mechanism, a waste conveying crawler belt and a discharging mechanism in the motor shaft conveying direction. The first detection mechanism comprises a plurality of axial run-out detection parts, a radial run-out detection part and a bearing end detection part, the second detection mechanism comprises a plurality of key groove detection parts, and the platform is provided with a transfer mechanism used for transferring a motor shaft between the feeding mechanism and the discharging mechanism. The motor shaft detection device has the effect of improving the motor shaft detection efficiency.