An inspection system of a filament yarn, including: an irradiation means configured to irradiate the filament yarn with inspection light; a measurement means configured to measure with an area sensor a luminance level of a shade and a background of the filament yarn; an image processing means configured to obtain image information on the basis of information obtained from the area sensor; and a determination means configured to decide a type and a frequency of an error from the image information and determine an inspection result of the filament yarn on the basis of a threshold value according to the error is provided.

A method for detecting gas concentration in a glass bottle with dynamical threshold adjustment is provided includes acquiring second harmonic peaks P.sub.0, P.sub.a, P.sub.X in the glass bottle, calculating absolute values of the differences between P.sub.0 and P.sub.a, as well as between P.sub.0 and P.sub.X, and performing quality inspection on a glass bottle to be detected. The performing includes collecting the second harmonic peaks for the glass bottle to be detected, calculating a mean P.sub.L of elements in the current queue L, updating the second harmonic peak P.sub.a and the second harmonic peak P.sub.X, collecting second harmonic peaks for a current glass bottle to be detected, and determining whether the current glass bottle to be detected is an acceptable medicinal bottle based on the updated data and the collected second harmonic peaks.

A method for detecting gas concentration in a glass bottle: firstly, second harmonic peaks P.sub.0, P.sub.a, P.sub.X of the glass bottle are obtained under the same detection environment 0%, an acceptable concentration threshold a % and a reference concentration auxiliary threshold X %; then absolute values of the differences between P.sub.0 and P.sub.a, as well as between P.sub.0 and P.sub.X, so as to obtain D.sub.a, D.sub.x, and to write P.sub.0 into a queue with a length of M; next, quality inspection is performed on each glass bottle to be detected by: collecting the second harmonic peak P.sub.N of the glass bottle and determining if P.sub.N≤P.sub.a is true; wherein if true, it is determined whether P.sub.N≤P.sub.X is true, and, if true, the second harmonic peak of the medicinal bottle is written into the queue, the queue is averaged to obtain P.sub.L, update is performed P.sub.a=P.sub.L+D.sub.a, P.sub.X=P.sub.L+D.sub.xP.sub.a=P.sub.L+D.sub.a, P.sub.X+P.sub.L+D.sub.a, which is used for the detection of the next medicine bottle after updating.

A product substance inspection system includes an expansion module, an inspection module, and a preference-setting module. The expansion module expends regulatory information into a plurality of substance thresholds. The inspection module obtains material composition corresponding to a constituent from the aggregate material composition stored in a database, and compares each element in the material composition with the corresponding substance threshold. When the inspection module determines that the value of a specific element in the material composition exceeds the corresponding substance threshold, the preference-setting module replaces the constituent to which the specific element belongs according to the preference settings.

An inspection device for inspecting an inspection object portion in a PTP sheet, the inspection device including: an irradiator that irradiates the inspection object portion with light; an imaging device that takes an image of the inspection object portion irradiated with the light; a processor that detects a defect in the inspection object portion from the taken image by using a predetermined luminance threshold value, and determines whether the inspection object portion is non-defective; a verification image generating circuit that generates a verification image in which a virtual defective image is placed in a non-defective image; and a threshold value verifier that causes the processor to determine whether the inspection object portion is non-defective or defective by using the verification image, in place of the image taken by the imaging device, and to verify the luminance threshold value based on a determination result by the processor.

An inspection device for inspecting an inspection object portion in a PTP sheet, the inspection device including: an irradiator that irradiates the inspection object portion with light; an imaging device that takes an image of the inspection object portion irradiated with the light; a processor that detects a defect in the inspection object portion from the taken image by using a predetermined luminance threshold value, and determines whether the inspection object portion is non-defective; a verification image generating circuit that generates a verification image in which a virtual defective image is placed in a non-defective image; and a threshold value verifier that causes the processor to determine whether the inspection object portion is non-defective or defective by using the verification image, in place of the image taken by the imaging device, and to verify the luminance threshold value based on a determination result by the processor.

A visual inspection system includes: a visual calibration apparatus, including a calibration member and a calibration member moving apparatus, where the calibration member moving apparatus includes a movable mounting plate, the mounting plate is able to be located at a calibration position within a movement range of the mounting plate, the calibration position is located within an inspection range of a visual inspection apparatus, and the calibration member is disposed on the mounting plate; the visual inspection apparatus, configured to obtain an image of the calibration member and send the image of the calibration member to an upper computer, and the upper computer, configured to determine, based on the image of the calibration member, a systematic calibration result of the visual inspection apparatus.