4results about How to "There will be no misjudgment" patented technology

The present invention discloses a PCB circuit board defect detection method and system, which relates to the field of defect detection, including: obtaining feature coordinates of feature positions in a standard design image; obtaining a circuit board image to be detected; obtaining at least one local difference image; obtaining a feature position consistent with the position coordinates of the local difference image; obtaining at least one conventional defect type corresponding to the target feature position; obtaining at least one feature defect image corresponding to the target conventional defect type; obtaining all combinations of at least one target feature defect image corresponding to the target feature position; obtaining a fused image; combining the fused image whose difference with the local difference image is less than a preset value; and obtaining the defect type of the PCB circuit board image to be detected. By setting a feature recognition module, a defect preprocessing module, a combination generation module and a defect recognition module, interference factors in actual situations are avoided, and defects are recognized as accurately as possible.

The utility model discloses an airtight tool for testing a wire harness, and the tool comprises an outer frame housing which is a supporting frame of the whole tool. The placing assembly is used for placing the test end of the wire harness to be tested; the test end is used for testing the wire harness to be tested; and the connecting assembly is used for connecting display equipment. According to the utility model, a product can be directly placed in the airtight tool for detection, no gap exists during detection, other gases are prevented from entering the airtight tool to influence the accuracy of the detection result, and the airtight tool is directly connected with the display device, so that the airtight test result can be directly displayed, the airtight detection is visualized, and the phenomenon of missed judgment is avoided; and moreover, the airtightness testing efficiency of the product is high, so that the quality of the product is ensured, and after-sales services are reduced.

This utility model provides a badminton shuttlecock feather arch detection device, belonging to the field of feather arch detection. It includes a workbench and a display screen and controller mounted on the workbench. A rotating seat device is located on the top of the workbench, with multiple sets of insertion holes for inserting feathers. An arch detector is located on the left side of the top of the workbench, and a support plate is located on the rear side wall of the workbench. The device also includes a clamping and loading mechanism: the clamping and loading mechanism is located on the top of the support plate. This mechanism can clamp the detected feathers and place qualified and unqualified products in their respective positions. By setting up this clamping and loading mechanism, this utility model can clamp and load qualified or unqualified feathers, placing them separately in corresponding boxes. This meets the needs of large-scale production, preventing negligence or misjudgment, improving the arch detection and classification effect, and enhancing product quality.

This invention discloses a calibration method, a cleaning device, and a storage medium. The cleaning device includes a sensing device, a suction pipe, and a light-emitting component. The sensing device and the light-emitting component are disposed on the suction pipe, and the light source signal emitted by the light-emitting component passes through the pipe wall to reach the sensing device. This invention presets a standard value when the suction channel is clean. When the cleaning device is operating, the light-emitting component emits a light source signal to the sensing device. When the sensing value obtained by the sensing device differs from the standard value, the light-emitting component is adjusted to make the sensing value obtained by the sensing device closer to the standard value. Therefore, when the suction pipe is dirty, the light source signal of the light-emitting component is adjusted to calibrate and maintain the sensing value obtained by the sensing device near the standard value. When the sensing device detects the dirtiness of the cleaning liquid, it will not make misjudgments due to dirt on the pipe wall.