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30results about How to "Avoid test results" patented technology

Electronic die cutting material defect detecting implementation method based on machine vision

The invention discloses an electronic die cutting material defect detecting implementation method based on machine vision. The method comprises the following steps of (a) loading a detection template; (b) transferring a detection object; (c) monitoring through a sensor; (d) capturing an image; (e) identifying an object; (f) processing the image; (g) carrying out binarization processing; (h) carrying out data statistics and detection analysis. The method adopts a non-contact optical sensor system, and adopts a machine to replace human eyes to measure and judge, a system utilizes a CCD (Charge Coupled Device) camera for capturing the image of an objective measuring object, and information such as pixel distribution, brightness and color of the image of the objective measuring object is converted into digital image signals; a project control system operates the signals to extract the characteristics of the measuring object; finally, field equipment is controlled to act according to tolerance and other condition output results so as to meet the core demands on on-line detection of product defects and dimension measurement, so that the measurement precision, the measurement speed, and the reliability under an industrial site environment can be ensured.
Owner:HANGZHOU BYTE INFORMATION TECH CO LTD

Device for testing whole life cycle precision degeneration of RV reducer

PendingCN109443757ASimple structureAvoid Trial PrecisionMachine part testingReduction driveCoupling
The invention discloses a device for testing whole life cycle precision degeneration of an RV reducer. A sliding plate driven by a driving mechanism is arranged on a flat plate. A mounting support isfixed to the sliding plate, a servo motor and the RV reducer to be tested are fixed to the mounting support, and the output end of the servo motor is connected with the input end of the RV reducer. Abearing pedestal support is fixed to the flat plate, a left stand plate and a right stand plate are arranged on the bearing pedestal support, a bearing assembly and a coder are mounted on the left stand plate, an output flange is arranged on the side, close to the RV reducer, of the left stand plate, and after the output flange and the RV reducer are in contact, fixed transmission can be achieved.A loading shaft is mounted on the right stand plate through a bearing assembly, an output flange shaft penetrates through the bearing assembly and a hole in the coder to be connected with one end ofthe loading shaft through a coupler, and the other end of the loading shaft is connected with a loading rod with a balance weight. According to the device, the reducer transmission error in the complete period of a fatigue life experiment can be tracked and tested in real time, and the transmission error of the reducer in the state of bearing variable loads can be tested.
Owner:浙江环动机器人关节科技股份有限公司

Generating device, generating method, program and recording medium

A generation apparatus and the like for generating a test vector set capable of reducing differences in a logic value generated before and after a scan capture for outputs from scan cells included in a full-scan sequential circuit are provided. A generation apparatus 200 generating an initial test vector set 216 for a logic circuit includes a target vector identification unit 204 identifying a test vector satisfying a predetermined criterion and to be selected for the number of bits (the number of bit transitions) whose logic values differ before and after scan capture with respect to outputs from scan cells included in the sequential circuit, from among test vectors in the initial test vector set 216, and a test vector set conversion unit 206 converting the test vector identified by the test vector identification unit 204 and to be selected so as to reduce the number of bit transitions with respect to outputs from the scan cells included in the sequential circuit.
Owner:JAPAN SCI & TECH CORP +2

Safe and active image tampering detection method and device

The embodiment of the present invention discloses a safe and active image tampering detection method and device. The method comprises: sending end equipment obtaining a first image, generating a random value of which the length is a second numerical value, obtaining a pre-configured fixed value of which the length is a third numerical value, and using the random value and the fixed value for generating a specified type character string of which the length is a first numerical value; performing Hash operation on the first image and the specified type character string by using an information digest algorithm to obtain a first information digest value; performing encryption processing on the specified type character string by using an encryption algorithm to obtain an encrypted specified type character string; adding the first information digest value and the encrypted specified type character string to the first image for obtaining a second image; sending the second image to receiving end equipment; and the receiving end equipment using the first information digest value and the encrypted specified type character string for detecting whether the first image is tampered or not. In the embodiment of the present invention, the image integrity and the image authenticity in the process of obtaining evidence for the images are ensured.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Raw milk purchasing quality safety management control system

The invention provides a raw milk purchasing quality safety management control system which comprises data of each milk producer in a milking station, data information of milk cows owned by each milk producer, detailed test data of milk sample of each raw milk tank vehicle every day, raw milk purchasing information every day, allocation condition of raw milk, log-on system of a computer, a host interface of the system, test system, a receipt report automatically generated by the system, and leader searching. The raw milk purchasing quality safety management control system uses an electronic computer, software and network communication technology to acquire, store, process and analyze the information in the whole business process of enterprise production. The log-on system is a channel for entering the system. The host interface of the system points out a link requiring entering. The test system is a main link to test whether the raw milk is qualified or not. The system automatically generates the receipt report, a milk source department purchases milk according to the report, a milk collection worktable collects milk according to a list, and the milk out of the list is unqualified milk and is incapable of being purchased. In the leader searching, a leader can log in the system to search detailed milk source conditions so as to ensure the raw milk purchasing quality safety.
Owner:山西古城乳业集团有限公司

Intelligent sorting equipment for agricultural product grading and using method thereof

ActiveCN112495819AAvoid human subjective evaluationImprove sorting efficiencySortingMachine visionRobotic arm
The invention discloses intelligent sorting equipment for agricultural product grading and a using method thereof. The intelligent sorting equipment for agricultural product grading comprises a feeding device, a conveyor belt, a plurality of visual detection devices, a sorting device and a control device, wherein the feeding device moves feeding trays to the conveyor belt, and every time the feeding device moves a plurality of feeding trays into one group; the plurality of visual detection devices are arranged on the conveyor belt, and each visual detection device is provided with a visual sensor and a camera; the sorting device comprises a plurality of symmetrically arranged mechanical arms, transferring devices connected with the mechanical arms and sorting trays; each transferring device comprises a supporting plate, a sliding rail, a movable block and a connecting rod connected with the movable block, wherein the sliding rail and the movable block are arranged on the supporting plate; one end of the connecting rod is further connected with a grabber; the control device comprises a control box, a control panel, a display screen and control buttons. The equipment meets the stepsof feeding, conveying, visual inspection and transferring, and the sorting efficiency and accuracy are greatly improved by matching the machine vision devices with the mechanical arms.
Owner:SUZHOU POLYTECHNIC INST OF AGRI

Industrial product visual sorting equipment and sorting process thereof

ActiveCN112718546AAvoid human subjective evaluationImprove sorting efficiencySortingMachine visionVisual inspection
The invention discloses industrial product visual sorting equipment and a sorting process thereof. The industrial product visual sorting equipment comprises a feeding mechanism, a sorting mechanism and a control mechanism, wherein the feeding mechanism comprises an X-Y axis transferring device, and the X-Y axis transferring device transfers a batch of to-be-sorted products to the sorting mechanism; the sorting mechanism comprises a first conveying belt, a sorting conveying belt, a second conveying belt, a plurality of manipulators and a plurality of visual inspection devices; the visual inspection devices are arranged on the first conveying belt, the sorting conveying belt and the second conveying belt; the sorting conveying belt consists of an identification region X, a sorting region X1, a sorting region X2, a sorting region X3 and a waste region; the first conveying belt consists of an identification region A1, an identification region A2 and an identification region A3; the second conveying belt consists of an identification region B1, an identification region B2 and an identification region B3; and the control mechanism controls the working modes of the feeding mechanism and the sorting mechanism. By using the machine vision devices and the manipulators, various types of products in the same batch and different grades of the same type of products in the same batch can be sorted, and the sorting efficiency and accuracy are greatly improved.
Owner:NANJING UNIV OF TECH +1

Simulated oral cavity device for collecting buccal cigarette dissolved matter and using method thereof

The invention relates to the technical field of simulated oral cavity devices and relates to a simulated oral cavity device for collecting buccal cigarette dissolved matter and a using method thereof. The simulated oral cavity device dissolves out and collects matter in buccal cigarettes in a simulated buccal state and comprises two layers of thin films, a constant-temperature water bath and a guide-out end capillary tube, edges around the thin films are in press-fit airtight to form a film wrapping jacket, an interlayer for placement of a buccal cigarette sample is arranged between the thin films, and infiltration liquid is guided into the interlayer by adopting a method of membrane permeation or capillary tube diversion to infiltrate the buccal sample; the film wrapping jacket is put below liquid level of liquid in the constant-temperature water bath, and one end of the guide-out end capillary tube extends into the interlayer while the other end of the same is connected with a dissolved liquid collection component. The simulated oral cavity device enables contact area of the buccal sample and the thin films to be consistent with that in a real oral cavity; during an experiment, the buccal sample is in a temperature environment in a simulated oral cavity, and pressure of the liquid can simulate pressure between gingiva and cheek.
Owner:SHANGHAI TOBACCO GRP CO LTD

Calibration device for testing with crushed-stone testing machine

The invention relates to a calibration device for testing with a crushed-stone testing machine. The calibration device comprises the crushed-stone testing machine, a load sensor, a linear velocity measurement sensor, a data collecting card and a host computer, wherein the crushed-stone testing machine comprises an injection channel, a feeding device and a striking experiment box, a test piece mounting table which is upwardly and downwardly adjustable, and an experiment controller; one end of the injection channel is a compressed air inlet and is provided with a pressure regulating valve and apressure gauge; the other end of the injection channel communicates with the striking experiment box; the feeding device is arranged on the injection channel; the experiment controller is connected with the pressure regulating valve and the pressure gauge; the load sensor and the linear velocity measurement sensor are both detachably mounted on the test piece mounting table which is upwardly and downwardly adjustable. Compared with the prior art, the invention has the advantage that the calibration device can provide an effective basis for the calibration of the striking force and the strikingspeed of the crushed-stone testing machine, ensures the accuracy of subsequent test results, and is simple in structure, reasonable in design and easy and convenient to operate.
Owner:DENKEI TECH RANDD SHANGHAI CO LTD

A safe active image tampering detection method and device

The embodiment of the present invention discloses a safe and active image tampering detection method and device. The method comprises: sending end equipment obtaining a first image, generating a random value of which the length is a second numerical value, obtaining a pre-configured fixed value of which the length is a third numerical value, and using the random value and the fixed value for generating a specified type character string of which the length is a first numerical value; performing Hash operation on the first image and the specified type character string by using an information digest algorithm to obtain a first information digest value; performing encryption processing on the specified type character string by using an encryption algorithm to obtain an encrypted specified type character string; adding the first information digest value and the encrypted specified type character string to the first image for obtaining a second image; sending the second image to receiving end equipment; and the receiving end equipment using the first information digest value and the encrypted specified type character string for detecting whether the first image is tampered or not. In the embodiment of the present invention, the image integrity and the image authenticity in the process of obtaining evidence for the images are ensured.
Owner:BEIJING UNIV OF POSTS & TELECOMM

A method for detecting defects in electronic die-cutting materials based on machine vision

The invention discloses an electronic die cutting material defect detecting implementation method based on machine vision. The method comprises the following steps of (a) loading a detection template; (b) transferring a detection object; (c) monitoring through a sensor; (d) capturing an image; (e) identifying an object; (f) processing the image; (g) carrying out binarization processing; (h) carrying out data statistics and detection analysis. The method adopts a non-contact optical sensor system, and adopts a machine to replace human eyes to measure and judge, a system utilizes a CCD (Charge Coupled Device) camera for capturing the image of an objective measuring object, and information such as pixel distribution, brightness and color of the image of the objective measuring object is converted into digital image signals; a project control system operates the signals to extract the characteristics of the measuring object; finally, field equipment is controlled to act according to tolerance and other condition output results so as to meet the core demands on on-line detection of product defects and dimension measurement, so that the measurement precision, the measurement speed, and the reliability under an industrial site environment can be ensured.
Owner:HANGZHOU BYTE INFORMATION TECH CO LTD
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