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97results about How to "Valid inspection" patented technology

Two-dimensional code superposition digital watermarking method, identification method and identification system thereof

The invention relates to a two-dimensional code superposition digital watermarking method, an identification method and an identification system thereof. The two-dimensional code superposition digital watermarking method comprises the following steps of firstly, acquiring anti-fake information and LOGO image information of a commodity; then adding verification information into the anti-fake information and then carrying out encryption processing; and then generating a two-dimensional code through encrypted anti-fake information; and finally, adding digital watermarking information in the LOGO image information, then taking as a new layer and superposing to the two-dimensional code so as to form a new image, and then taking as a sign and printing on the commodity. The printed commodity can acquire decomposition which is basically consistent with the decomposition of an original image on a visual sense aspect under a standard visible light source. Anti-fake information copy difficulty and an anti-fake coefficient are high so that non-authoritative copy can be prevented. Based on a condition that a commodity printing flow is not changed, commodity printing cost is reduced. Simultaneously, the verification information and the anti-fake information of encryption processing are added so that extraction robustness is increased. Digital watermarking is added in a LOGO image so that safety is high and an anti-fake capability is high too.
Owner:DANDE IMAGE MASTER CO LTD ZHUHAI

Method and system for mobile phone antenna coupling test on production line

The invention discloses a method and a system for mobile phone antenna coupling test on a production line. The system comprises a coupling test module, an industrial personal computer, a multi-signal-source device, radio-frequency cables, a combiner and a coupling shielding box. The coupling test module comprises mobile internal test software for coupling test of a to-be-tested mobile phone in set process; the industrial personal computer is connected with the multi-signal-source device and used for configuration of parameters of the multi-signal-source device and controlling a transmission channel of the multi-signal-source device to open or close; the multi-signal-source device under control of the industrial personal computer is used for generating radio-frequency signals with multiple frequency points for mobile phone antenna coupling; the radio-frequency cable is arranged between the multi-signal-source device and the combiner and between the combiner and the coupling shielding box respectively; the coupling shielding box is used for placement of at least one mobile phone and used for broadcast type parallel coupling test of mobile phones. The method and the system for mobile phone antenna coupling test on a production line have the advantage that test efficiency and precision can be improved.
Owner:上海鑫测信息技术有限公司

Printing inspecting method and device of commodity information

The invention relates to a printing inspecting method and device of commodity information. The printing inspecting method of the commodity information comprises the steps that the commodity information is encrypted and divided to form two unique and corresponding half codes firstly; then one half code is stored in a database, the other half code serves anti-fake information and is printed on a label, and meanwhile a commodity information offer value is calculated based on the commodity information through a one-way function and is printed on a commodity serving as a mark; label image information and mark image information on the inspected commodity are obtained in the inspection process, and the contained commodity information half code and the commodity information offer value are extracted; finally the extracted commodity information half code and the unique and corresponding half code in the database are synthesized to work out the commodity information and a commodity information offer value, and the commodity information offer value is compared with the extracted commodity information offer value to inspect the commodity information. The printing inspecting method and device of the commodity information can effectively inspect the commodity information, can largely improve the safety of the commodity information of the inspected commodity, and is excellent in anti-fake effect.
Owner:DANDE IMAGE MASTER CO LTD ZHUHAI

Nerve test device

The invention relates to a nerve test device, and belongs to the technical field of medical instruments. The nerve test device comprises a nerve tester main body, and is characterized in that a current variation display screen is arranged on the upper side of the nerve tester main body; a longitudinal coordinate device and a horizontal coordinate device are arranged on the current variation display screen; an image drawing device is arranged in the current variation display screen; an operation panel is arranged on the front side of the current variation display screen; a main power switch is arranged on the operation panel; an adjuster for a horizontal coordinate and a longitudinal coordinate is arranged on the right side of the main power switch; a push rod fixing plate is arranged on the right side of the nerve tester main body; a push rod connecting rod is arranged on the right side of the push rod fixing plate; a push rod is arranged on the right side of the push rod connecting rod; a diagonal bar is arranged on the lower side of the push rod connecting rod; a diagonal bar pressure reduction plate is arranged on the lower side of the diagonal bar. The nerve test device is complete in function, convenient to use and flexible in operation in nerve test, can effectively test nerves, can accurately display the intensity of nerve reaction, and reduces the burdens of medical staffs.
Owner:丰喆

Western medicine constituent testing device

The invention relates to a western medicine constituent testing device and belongs to the technical field of medical equipment. The western medicine constituent testing device comprises a main brace, wherein a water storage tank connecting rod fixing plate is arranged on the right side of the main brace, a water storage tank connecting rod is arranged on the right side of the water storage tank connecting rod fixing plate, a water storage tank fixing plate is arranged on the right side of the water storage tank connecting rod, a water storage tank is arranged on the right side of the water storage tank fixing plate, a grinding tank connecting rod fixing plate is arranged on the left side of the main brace, a grinding tank connecting rod is arranged on the left side of the grinding tank connecting rod fixing plate, a grinding tank fixing plate is arranged on the left side of the grinding tank connecting rod, a grinding tank is arranged on the left side of the grinding tank fixing plate, a base pressure relief plate is arranged on the lower side of the main brace, a base is arranged on the lower side of the base pressure relief plate, and an instrument operation foot switch is arranged on the upper left side of the base. The western medicine constituent testing device has complete functions and is convenient to use, when a medical worker performs western medicine constituent testing work, the operation is simple and convenient, time and labor are saved, and the working difficulty of the medical worker is reduced.
Owner:张新成

Method used for detecting display panel

The invention discloses a method used for detecting a display panel. The display panel comprises an array substrate used for driving an electroluminescent device, wherein the array substrate comprises pixel electrodes arranged in an array and a pixel switch array used for driving the pixel electrodes. The method comprises the following steps: S1) applying a first driving signal to the manufactured array substrate, and monitoring first voltage on the pixel arrays; S2) forming a second electrode on each pixel electrode of the array substrate; S3) applying a second driving signal to the array substrate on which the second electrode is formed, and monitoring second current which flows the second electrode, wherein each pixel electrode is one of the cathode and the anode of the electroluminescent device, and each second electrode is the other one of the cathode and the anode of the electroluminescent device. According to the method, an organic luminescent layer does not need to be manufactured, and therefore, the cost of the whole detection process is greatly lowered. Meanwhile, interference brought by new defects which may be introduced in the manufacture of the organic luminescent layer is eliminated, a detection process of the display panel is simplified, detection complexity is lowered, and the method is favorable for improving detection efficiency.
Owner:BOE TECH GRP CO LTD

Device for comparing test performance of force measuring locking anchor pipes of tunnel and test method

The invention relates to a device for comparing the test performance of the force measuring locking anchor pipes of a tunnel and a test method. The device is convenient to install and easy to operate. The device can be used for fast verifying the test performance of the force measuring locking anchor pipe with an optical fiber grating buried therein and can be applied to the detection of the test performance of force measuring devices such as tube type force measuring devices and rod type force measuring devices. According to the technical schemes of the invention, the device of the invention includes a force measuring locking anchor pipe with an optical fiber grating buried therein, a force measuring locking anchor pipe with resistance strain gauges pasted therein, a loading ring and a supporting frame, wherein the loading ring and the supporting frame are applied to comparison. The two kinds of force measuring locking anchor pipes are arranged on the supporting frame, so that step-by-step loading tests are carried out, and the measurement results of the tests of the force measuring locking anchor pipes are compared with theoretical values, and therefore, the test performance of the two kinds of the force measuring locking anchor pipes can be analyzed and evaluated.
Owner:CHANGAN UNIV

Method for inspecting water circulation system in water-cooling winding of turbonator

InactiveCN102213623AEasy to achieve test preparation conditionsEasy to realize inspection conditionsThermometers using electric/magnetic elementsUsing electrical meansStable stateRoom temperature
The invention relates to a method for inspecting a water circulation system in a water-cooling winding of a turbonator, in particular to a method for inspecting whether the water circulation system in the water-cooling winding of the turbonator is blocked or not, which is used for inspecting a circulating water system. By the method, the problem that the duration for inspection is long and the problem that test results and sensitivity are influenced seriously due to slow temperature reduction of cold water are solved. The method comprises the following steps of: 1, arranging a temperature measuring element on the outer surface of a water outlet pipe of each stator winding; 2, introducing room temperature water with the same temperature into each stator winding; 3, after the stable state of the temperature is reached, introducing high-temperature water with the same temperature into each stator winding, and recording the process of temperature variation on the outer surfaces of the water outlet pipes simultaneously; and 4, calculating the speed of the temperature variation of the outer surface of each water outlet pipe, and for the water outlet pipe of which the temperature variation speed is over 10 percent less than the average temperature variation speed, determining that the water pipe of which the inside is blocked.
Owner:STATE GRID CORP OF CHINA +1

Test device and method for generator rotor winding turn-to-turn short-circuit fault monitoring device

ActiveCN108732522AStrengthen the product inspection linkImprove product qualityElectrical measurementsHuman–machine interfaceTest fixture
The invention discloses a test device for a generator rotor winding turn-to-turn short-circuit fault monitoring device. The test device comprises an HMI human-machine interface module, a calculation module, two DA conversion modules, two signal amplification output modules and a power supply module. The invention further discloses a test method for the generator rotor winding turn-to-turn short-circuit fault monitoring device. The test method comprises the steps of: firstly, setting fixed value parameters of output waveforms; secondly, calculating simulated key phase signal data and detectioncoil voltage data; thirdly, transmitting a simulated key phase signal and a simulated detection coil voltage signal to a tested rotor winding turn-to-turn fault monitoring device after DA conversion and amplification; and finally, checking whether signal sampling, fault feature calculation and logical judgment results of the tested rotor winding turn-to-turn fault monitoring device are correct. The test device and the test method can generate voltage waveforms similar to voltage waveforms actually measured by means of a field detection coil, simulate normal waveforms and fault waveforms, can verify whether the signal sampling, fault feature calculation and logic judgment of the monitoring device are correct in advance before the installation of equipment.
Owner:NR ELECTRIC CO LTD +1

V-shaped cutting deviation detecting method of circuit board

The invention relates to a V-shaped cutting deviation detecting method of a circuit board. According to the V-shaped cutting deviation detecting method, a V-CUT deviation detecting hole drilling procedure is added to the hole drilling procedure in hole drilling process of the circuit board; and the V-CUT deviation detecting hole drilling procedure is arranged as follows: one or more V-CUT deviation detecting holes are drilled at each of two ends of each V-CUT line which is proposed to be cut in V shape and outside a formation line of a base plate of the circuit board before or after drilling the hole at the first time; and after the circuit board is formed, a V-CUT groove formed after cutting in the V shape is detected to determine whether the V-CUT groove is cut through the centre of circles of the V-CUT deviation detecting holes at two ends of the V-CUT line, if so, the cutting in V shape can be determined that the deviation not occurred thereto, and if not so, the cutting in V shape can be determined that the deviation occurred thereto. The diameter of a V-CUT deviation preventing hole is 0.8 to 1.0 millimeters. The distance from the V-CUT deviation detecting hole to the formation line is 1 to 2 millimeters. With the adoption of the method provided by the invention, the difficulty in V-CUT detecting can be reduced, the detecting timeliness can be improved, the short circuit phenomenon caused by non-removed V-CUT line can be prevented, and the V-CUT precision can be improved as well.
Owner:SHENGHUA ELECTRONICS HUIYANG

A method for measuring and inspecting the radius of the inner wall of the curved roof of the assembled channel

ActiveCN104121868BValid inspectionThe amount of measurement data is smallUsing optical meansMedial axisEngineering
The invention relates to an assembly type channel arc top plate inner wall radius measuring and testing method. The assembly type channel arc top plate inner wall radius measuring and testing method includes the following steps of using a total station meter placed on a base plate to aim at a peak point A, a leftmost end point B and a rightmost end point C, measuring an angle alpha<1> formed by an OA link line and an OB link line and an angle alpha<2> formed by the OA link line and an OC link line through a measuring center O of the total station meter, repeatedly adjusting the position of the total station meter on the base plate to enable the angle alpha<1> to equal the angle alpha<2> so that the location of the total station meter on a medial axis of a channel is guaranteed, measuring a distance L<0> between the measuring center O of the total station meter and a point A and a distance L<1> between the measuring center O of the total station meter and a point B, and finally, substituting the measured alpha<1>, the distance L<0> and the distance L<1> into a given equation to obtain an actual top plate inner wall radius value R. The assembly type channel arc top plate inner wall radius measuring and testing method is capable of accurately and conveniently testing whether top plate line types meet original design requirements.
Owner:ANHUI TRANSPORTATION INVESTMENT GRP

Integration forming method for 1553B bus cable system

The invention discloses an integration forming method for a 1553B bus cable system. The method includes: (1), welding and assembling coupling transform coils and isolation resistances on printed boards to form printed board assemblies; (2), on a first printed board assembly, welding first twisted-pair shielded wires at a positive end and a negative end of a first principle line, welding second twisted-pair shielded wires at a positive end and a negative end of a second principle line, and welding third twisted-pair shielded wires at a positive end and a negative end of a sub-line; and on a second printed board assembly to an Nth printed board assembly, welding second twisted-pair shielded wires at the positive end and the negative end of the second principle line, and wielding third twisted-pair shielded wires at the positive end and the negative end of the sub-line; (3), connecting N printed board assemblies from one end to the other end through the second twisted-pair shielded wires; (4), sleeving coupler casings on the N printed board assemblies and performing processes of filling and sealing; and (5), welding the third twisted-pair wires connected on all the printed board assemblies to connectors, and welding the first twisted-pair wires connected on the first printed board assembly and the second twisted-pair wires connected on the Nth printed board assembly to terminals.
Owner:CHINA AEROSPACE TIMES ELECTRONICS CORP

Finished product transporting line for medical electric drill saw

The invention provides a finished product transporting line for a medical electric drill saw. The finished product transporting line comprises a production line, an assembling table and an outward-transporting line. The rear end of the production line is connected with the assembling table. The other end of the assembling table is connected with the outward-transporting line. The outward-transporting line is supported by a base. A conveyor belt is arranged on the outward-transporting line. The conveyor belt is driven by a motor. The tail end of the outward-transporting line is connected with a transshipping table. The transshipping table is provided with an automatic lifting device. The position behind the automatic lifting device is connected with a transshipping frame. By arranging the outward-transporting line, the automatic lifting device and the transshipping frame, the medical electric drill saw is rapidly transported and moved, after being processed by the assembling table, the medical electric drill saw is transported out by the outward-transporting line, the medical electric drill saw is rapidly moved to the transshipping table through the automatic lifting device, the transportation time is greatly shortened, and the labor cost is lowered; by arranging a spot check table, checking can be effectively carried out on finished products by workers, and defective products are prevented from flowing into the market; the finished product transporting line for the medical electric drill saw has the advantages that the structure is simple, the production efficiency is high, and the production cost is lowered.
Owner:WUHU RUIJIN MEDICAL EQUIP

Calibration and testing device of landslide monitoring device

The invention discloses a calibration and testing device of a landslide monitoring device. The calibration and testing device of the landslide monitoring device comprises a first substrate and a second substrate. An end head of the first substrate is provided with a third substrate. A rotatable screw rod is placed on the first substrate. One end of the screw rod is connected with a speed changing box fixed on the third substrate. A control module is connected with a motor. A second moving plate matched with the screw rod in a threaded mode is provided with a first moving plate. A first screw hole matched with a first bolt in the threaded mode is formed in the first moving plate. The first bolt penetrates the first through hole in a first pressing plate provided with a groove and fixes the first pressing plate on the first moving plate. The landslide monitoring device is clamped between the first moving plate and the first pressing plate. A fixing hole is formed in the second substrate. A third through hole is formed in a fixing plate. The landslide monitoring device is clamped between the fixing plate and a second pressing plate. The landslide monitoring device is connected with a testing module. The calibration and testing device of the landslide monitoring device is simple in structure, reasonable in design, convenient to use and capable of effectively calibrating or testing the landslide monitoring device.
Owner:XIAN JINHE OPTICAL TECH
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