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34results about How to "Easy Traceability" patented technology

Calibration method and calibration system for surface source blackbody temperature accuracy

The invention is applicable to the field of temperature correction, and provides a calibration method for surface source blackbody temperature accuracy. The method comprises the following steps that A, M different calibration temperature points are selected in the set temperature range of a surface source blackbody; B, a metering standard platinum resistance temperature indicator is utilized for carrying out temperature measurement on the surface source blackbody radiation source at each calibration temperature point through calibration holes, the real temperature value Ti is obtained, and in addition, the radiation temperature ti of the corresponding surface source blackbody per se is recorded; C, the radiation temperature of the surface source blackbody per se of each calibration temperature point is subjected to linear fitting with the real temperature value measured by the metering standard platinum resistance temperature indicator, and correction factors are calculated; and D, correction factors are utilized for correcting the temperature of the surface source blackbody. The calibration method aims at further correcting the nonlinear error of a platinum resistance temperature measuring system, the measurement precision of the whole system is improved in the full temperature range, the calibration precision of the surface source blackbody radiation temperature accuracy is improved, and the high-precision testing requirement is met.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Anti-cheating supervision method and system for electronic scale

The invention provides an anti-cheating supervision method for an electronic scale. The method comprises the following steps: initialization: initializing the electronic scale and uploading to a server for saving and recording; activation: forming an electronic scale ID and a key matched with the electronic scale specific to the approved electronic scale through the server, issuing the electronic scale ID and the key to a handheld terminal, transmitting the electronic scale ID and the key to the electronic scale through an NFC (Near Field Communication) function by using the handheld terminal, writing the electronic scale ID and the key into an NFC tag; verification and authorization: after the electronic scale is activated, performing verification and authorization operation on the electronic scale through the handheld terminal, wherein only the successfully-verified electronic scale can display normally; unpacking authorization: when the electronic scale is damaged, performing unpacking authorization operation on the electronic scale through the handheld terminal, wherein only the electronic scale with unpacking authorization can be unpacked for maintenance. By adopting the anti-cheating supervision method, a law breaker is prevented from cheating on the electronic scale, detailed information of the electronic scale and operation information of electronic scale management personnel can be recorded on the server, and convenience is brought to unified management of a supervision unit.
Owner:FUJIAN METROLOGY INST

Multi-station gas detector calibration instrument and calibration method of multi-station gas detectors

The invention discloses a multi-station gas detector calibration instrument and a calibration method of multi-station gas detectors. The multi-station gas detector calibration instrument comprises a machine frame, a calibration station, an air supply device and a monitoring device. A camera, branch liquid crystal displays, a sound-light alarm module and an air supply opening are formed in the calibration station, the monitoring device comprises a microcontroller, an industrial personal computer and a displayer, and a key operation module, an electric current signal processing module, a pressure sensor assembly and a flow sensor are connected to the input end of the microcontroller. The calibration method of the multi-station gas detectors comprises the following steps that firstly, preparation work before test is carried out; secondarily, indication errors of the gas detectors are obtained; thirdly, repeatability of the gas detectors is obtained; fourthly; response time of the gas detectors is obtained; fifthly, drifting values of the gas detectors are obtained; and sixthly, test data of the gas detectors are judged. According to the multi-station gas detector calibration instrument and the calibration method of the multi-station gas detectors, calibration of the multiple gas detectors can be simply, conveniently and rapidly completed, the calibration process is easy to control, and the calibration quality, efficiency and accuracy of the gas detectors are improved.
Owner:TECHN MONITORING CENT OF CHANGQING PETROLEUM EXPLORATION BUREAU

Off-line recharging method and system based on electronic wallet

The invention discloses an off-line recharging method and system based on an electronic wallet and relates to the field of electronic wallet recharging. The method comprises the steps that recharge amount and an EPID are sent to a recharging code generation server terminal by a user; after the recharge amount and the EPID sent by the user are received by the recharging code generation server terminal, conversion and encryption operation are conducted on the recharge amount and the EPID, so that a recharge code of a byte-code mode is generated; the recharge code of the syllable code mode is converted to a recharge code of a numeric string mode by the recharge code generation server terminal so that the recharge code of the numerical string mode can be sent to the user in a mode identical to that of the request sent by the user; the recharge code of the numerical string mode is input into an electronic wallet terminal by the user; after decryption is conducted on the electronic wallet terminal, recharge of the terminal electronic wallet is completed. A wireless POS does not need for recharging, off-line recharge can be completed on the corresponding electronic wallet by the user according to the electronic wallet recharge code, and the coordination of a third party is not needed in the recharging process.
Owner:WUHAN TIANYU INFORMATION IND

A device and method for measuring the uniformity of an infrared radiation surface

The invention discloses a uniformity measurement device for an infrared radiation surface. The device comprises a high-resolution small light spot sampling and imaging optical system, an infrared detector, a preamplifier, a band-pass filter, a main amplifier and analogue / digital (A / D) conversion circuit, a two-dimensional precision electric control displacement system, a driving circuit for the two-dimensional precision electric control displacement system, a master control computer and a main interface circuit, wherein the high-resolution small light spot sampling and imaging optical system is used for focusing infrared radiation surface sampling points onto the infrared detector; the master control computer is used for transmitting a driving instruction to the two-dimensional precision electric control displacement system through the main interface circuit; and the infrared detector is used for converting a measured infrared radiation signal into an electrical signal, and transmitting the electrical signal to the master control computer to finish data processing through the preamplifier and the main amplifier and A / D conversion circuit. The uniformity measurement device for the infrared radiation surface is simple in structure, low in cost, high in test efficiency, speed and measurement accuracy, large in measuring point number and easy for tracing to the source.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Offline recharge method and system based on electronic wallet

The invention discloses an off-line recharging method and system based on an electronic wallet and relates to the field of electronic wallet recharging. The method comprises the steps that recharge amount and an EPID are sent to a recharging code generation server terminal by a user; after the recharge amount and the EPID sent by the user are received by the recharging code generation server terminal, conversion and encryption operation are conducted on the recharge amount and the EPID, so that a recharge code of a byte-code mode is generated; the recharge code of the syllable code mode is converted to a recharge code of a numeric string mode by the recharge code generation server terminal so that the recharge code of the numerical string mode can be sent to the user in a mode identical to that of the request sent by the user; the recharge code of the numerical string mode is input into an electronic wallet terminal by the user; after decryption is conducted on the electronic wallet terminal, recharge of the terminal electronic wallet is completed. A wireless POS does not need for recharging, off-line recharge can be completed on the corresponding electronic wallet by the user according to the electronic wallet recharge code, and the coordination of a third party is not needed in the recharging process.
Owner:WUHAN TIANYU INFORMATION IND

Data transmission cable with plurality of groups of differential signal transmission units sharing same ground

The invention discloses a data transmission cable with a plurality of groups of differential signal transmission units sharing the same ground, which comprises a plurality of groups of differential signal transmission units and a plurality of ground wires, wherein the differential signal transmission units and the ground wires are arranged according to a set combination and adopt a transparent insulating hot-melt mylar and a single-sided conductive aluminum foil mylar to be attached to each other; the differential signal transmission unit comprises a hot-melt copper foil mylar and a pair of differential signal lines wrapped by the hot-melt copper foil mylar; the outer side of the hot-melt copper foil mylar is a conductive side and is attached to the conductive side of the single-sided conductive aluminum foil mylar; and the ground wire is connected in a mode of being attached to the conductive side of the single-sided conductive aluminum foil mylar. According to the data transmission cable with the plurality of differential signal transmission units sharing the same ground, the defect that characteristic impedance changes due to the fact that two metal foils cannot be tightly attached directly is overcome, the bandwidth of data transmission is increased, the insertion loss is reduced, and higher density is achieved at the same time.
Owner:广州京兆信息技术有限公司

Block chain original content chaining and distributing system

The invention discloses a block chain original content chaining and distributing system. The system comprises a central control system and a client login unit. The input end of the central control system is electrically connected with the output end of the client login unit through a wire. The input end of the central control system is electrically connected with the output end of a content management unit through a wire, and the content management unit comprises a copyright registration module, a registration code identification module, a storage module, a charging module and a statistics module. The invention relates to the technical field of block chain chaining and distributing. According to the block chain original content chaining and distributing system, the content management unitcomprises the copyright registration module, the registration code identification module, the storage module, the charging module and the statistics module, so that the copyright of the original content is conveniently registered and protected while the original content is published, a user is prevented from illegally using the original content, the infringement phenomenon is reduced, and traceability and responsibility investigation are facilitated.
Owner:厦门区块链云科技有限公司

Anti-cheating supervision method and system for electronic scale

The invention provides an anti-cheating supervision method for an electronic scale. The method comprises the following steps: initialization: initializing the electronic scale and uploading to a server for saving and recording; activation: forming an electronic scale ID and a key matched with the electronic scale specific to the approved electronic scale through the server, issuing the electronic scale ID and the key to a handheld terminal, transmitting the electronic scale ID and the key to the electronic scale through an NFC (Near Field Communication) function by using the handheld terminal, writing the electronic scale ID and the key into an NFC tag; verification and authorization: after the electronic scale is activated, performing verification and authorization operation on the electronic scale through the handheld terminal, wherein only the successfully-verified electronic scale can display normally; unpacking authorization: when the electronic scale is damaged, performing unpacking authorization operation on the electronic scale through the handheld terminal, wherein only the electronic scale with unpacking authorization can be unpacked for maintenance. By adopting the anti-cheating supervision method, a law breaker is prevented from cheating on the electronic scale, detailed information of the electronic scale and operation information of electronic scale management personnel can be recorded on the server, and convenience is brought to unified management of a supervision unit.
Owner:FUJIAN METROLOGY INST
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