35results about How to "High technical threshold" patented technology

The invention discloses a weighing device calibration system, which is realized based on an Android platform. The system comprises a weighing device for acquiring and sending weight information to the Android platform and receiving an action command issued by the Android platform. The weighing device comprises a control module, a weighing sensor, a storage module and a power supply module, wherein the control module is respectively connected with the weighing sensor, the storage module and the power supply module. The Android platform which realizes communication connection with the weighing device via a serial port is used for receiving a data packet sent by the weighing device, presetting data and outputting the action command to the weighing device. The invention also discloses a weighing device calibration method based on the Android platform. The calibration system of the invention is simple and easy to operate, the overall calibration or correction process can be conveniently and quickly completed, calibration can be quickly completed without a special person, and the problems of a complicated existing calibration process and hard operation can be solved.

The present invention provides a method for preparing a graphene single crystal wafer on a copper-based textured film substrate, comprising the following steps: S1: providing a copper-based textured film substrate, and applying the copper-based textured film substrate to the Putting in a chemical vapor deposition system for annealing treatment; and S2: feeding a gaseous carbon source to epitaxially grow a graphene single crystal wafer on the surface of the copper-based textured film substrate. According to a method for preparing a graphene single crystal wafer on a copper-based textured film substrate provided by the present invention, the problem of high cost caused by epitaxial growth of a single crystal graphene wafer on a single crystal substrate is solved, which is beneficial to graphene The large-scale application of single crystal wafers is of great significance to the realization of the wide application of graphene in the field of microelectronics.

The invention provides an anti-counterfeiting label, a verification method of the anti-counterfeiting label and a generation method of the anti-counterfeiting label. The anti-counterfeiting label comprises at least one anti-counterfeiting identification layer and a transparent phase layer. Each anti-counterfeiting identification layer is provided with an identification pattern which is associatedwith product identification and provided with encryption information, and the identification pattern on each anti-counterfeiting identification layer is an encrypted disordered pattern. The transparent phase layers are detachably arranged on the surfaces of the anti-counterfeiting identification layers, each transparent phase layer is provided with an encrypted disordered pattern composed of a plurality of phase points, and the transparent phase layers and the anti-counterfeiting identification layers are combined to form an ordered and identifiable visualized pattern. A scanning terminal scans the visualized pattern, a disordered analytical pattern is displayed on a screen of the scanning terminal after analysis, the transparent phase layers are separated from the anti-counterfeiting identification layers and then pasted to the screen of the scanning terminal, and the disordered patterns on the transparent phase layers are combined with the analytical pattern on the scanning terminalto form product identification.

The invention discloses a device with an optical fiber pipeline containing carved characters and patterns. The device comprises an optical fiber pipe body, an optical fiber protecting wire is arranged in the optical fiber pipe body, one end of the optical fiber pipe body is provided with a right cone-shaped optical fiber cover and a laser containing opening formed in the right cone-shaped optical fiber cover, and the right cone-shaped optical fiber cover is fixed on the optical fiber pipe body through a right welding part which is provided with a right welding point; the other end of the optical fiber pipe body is provided with a left cone-shaped optical fiber cover which is fixed on the optical fiber pipe body through a left welding part, and the left welding part is provided with a left welding point; one end of the optical fiber protecting wire is provided with a dustproof cap, and the other end of the optical fiber protecting wire is provided with a carved character and pattern module; a red light laser is provided with a laser ray outlet and a laser button. According to the device with the optical fiber pipeline containing the carved characters and patterns, the design is novel, true and false are conveniently distinguished, and the promotional value is higher.

A security upgrade method, system, server, and vehicle-mounted terminal, the method comprising: a data plane server uses a first private key to sign an original upgrade package to obtain a security upgrade package; a control plane server generates an initial update including a download strategy for the security upgrade package For activity data, use a second private key different from the first private key to sign the initial upgrade activity data, and send the signed upgrade activity data to the vehicle-mounted terminal; the vehicle-mounted terminal uses the second public key to sign the upgraded activity The data is verified; if the verification is passed, the vehicle-mounted terminal downloads the security upgrade package according to the instructions of the download policy, and uses the first public key to verify the security upgrade package; if the verification passes, the vehicle-mounted terminal restores the The original upgrade package uses the original upgrade package to upgrade the vehicle-mounted system of the vehicle-mounted terminal, thereby reducing the security risk caused by server nodes being attacked and improving the security of the vehicle-mounted system upgrade.

The invention discloses a method for encrypting and reading information by using nanotechnology, including the process of encrypting and writing information to a carrier, and the process of decrypting the information on the carrier, wherein the encrypting and writing of information The process of loading the carrier includes: substrate pretreatment, coating, absorbing the first photosensitive molecular layer, writing the first encrypted information, covering the first cut-off layer, adsorbing the Nth photosensitive molecular layer on the N-1th cut-off layer, and writing the first N encryption information covers the Nth cut-off layer, N is a natural number greater than or equal to 2 and less than or equal to M, and M is a preset value according to encryption requirements; the thickness of the photosensitive molecular layer and the cut-off layer are both nanoscale. Combining photosensitive technology and spectral detection to realize the encryption and decryption of information is more complex and difficult than traditional electronic information or digital information, and the encrypted information has high precision and strong concealment, making it difficult to crack encrypted information.

A system for automatically embedding behavior collection components into a mobile device application; the system includes a user interface module, a recording module, a marking module, and an embedding module. The user interface module provides an operation interface which includes tracking items. The tracking items correspond to behavior collection components. The behavior collection components transmit operation information of the mobile device to a server. The recording module records relational information respectively corresponds to each of the behavior collection components, and each relational information is a relational function selected from of a plurality of relational functions of a library. The marking module determines and marks embedding positions of the behavior collection components in the mobile device application based on the behavior collection components of the selected tracking items and relational information thereof. The embedding module embeds the behavior collection components of the selected tracking items into the marked embedding positions.

The invention discloses a method for manufacturing a cold chain storage and transportation monitoring label based on a nano temperature-sensitive color-changing material. It comprises the following steps: 1) preparing a magnetically responsive photonic crystal; 2) ultrasonically dispersing the magnetically responsive photonic crystal prepared in 1) in a temperature-sensitive dispersion liquid; 3) sealing the dispersion liquid in 2) in a thin container or 4) Under the condition of applying a special magnetic field, make the temperature-sensitive liquid film present the pattern and color; 5) Place it in the refrigerator to fix the pattern and color, and obtain the cold chain temperature label. The label will not produce color changes within the sensitive temperature, and the color and pattern will change beyond the sensitive temperature, and it is irreversible. The invention has the advantages of high sensitivity, high reliability, high anti-counterfeiting and high integration.