19results about How to "Protection reliability" patented technology

The invention provides a distributed power data asset management privacy protection encryption architecture design method, which comprises the steps of generating a watermark with robustness and imperceptibility by adopting a content-based digital watermarking algorithm according to statistical characteristics of power data assets, and storing a watermark embedding process and an extraction result through a blockchain; a graph-based data model is adopted, the electric power data assets carrying the watermarks serve as nodes, the data flow relation serves as edges, and an electric power data asset consanguinity graph is constructed; for distributed storage of the blood relationship map, a P2P network topology is constructed by adopting a block chain and a distributed hash table, and blood relationship map data is stored in each node of an alliance chain in a distributed manner; and verifying the digital watermark information embedded in all circulation path nodes through which the power data assets pass in the blood relationship map, calculating the similarity between the extracted watermark and the original watermark, calculating the distortion rate, and judging whether the power data assets are tampered or not.

The invention discloses a multi-gear dial color temperature and current adjusting DALI and 0-10V integrated constant current driving power supply which comprises an EMI circuit, a rectifying circuit, an active and passive bleeder circuit, a single-stage PFC flyback circuit, a low-power-consumption high-voltage starting circuit, a BUCK circuit, a color temperature control circuit, a DALI and 0-10V dimming circuit and a gear dial color temperature and current adjusting circuit. The duty ratio of input PWM signals of the DALI and the MO301 on the 0-10V dimming circuit can be adjusted by dialing the dial SW2, so that the light-emitting proportion of the two LED light sources is adjusted, and the purpose of color modulation is achieved. Eight-gear color temperature can be adjusted through two paths of LED output current complementary dial codes, and the total current is not changed in the color adjusting process and is equal to the current of a constant current source; and a dial SW301 is connected to current sampling of a CS pin of the current adjusting circuit U201 to realize accurate multi-gear current control.

The utility model discloses an integrated optical fiber isolator for a laser in the field of optical devices, which comprises an integrated optical fiber, the integrated optical fiber comprises an optical fiber body and a plurality of micro-nano structure pairs positioned in the optical fiber body, and the optical fiber body comprises a core layer and a cladding. The included angle between the micro-nano structure pair and the forward transmission direction of the integrated optical fiber is smaller than 90 degrees, so that the micro-nano structure pair is coupled with light which is reversely transmitted in the core layer. According to the utility model, the micro-nano structure is processed on the optical fiber body, and the micro-nano structure is utilized to realize the isolation of the reverse light, thereby not only reducing the damage of the reverse light to the device, but also being higher in integration level and smaller in size of the whole isolation device, and reducing the risk of damage.

The invention relates to the technical field of computer data processing, in particular to a personnel information offline processing method based on Android. According to the personnel information offline processing method realized by using the Android platform, the personnel information is stored on the mobile equipment by using the local database, so that the defects of a traditional mode are overcome. The method comprises the following steps: acquiring personnel information input by a user; storing the personnel information in a local database; and querying and displaying personnel information according to user requirements. According to the method and the device, offline processing of the personnel information is realized on the Android platform, so that the processing efficiency and the safety are improved, and meanwhile, the user experience is also improved.

The invention relates to a helium supply device and method for an electrostatic chuck, the helium supply device comprises a bottom plate, a helium inlet pipeline and a helium outlet pipeline are fixedly arranged on the bottom plate, and the helium inlet pipeline and the helium outlet pipeline are connected through a mass pressure controller; the helium outlet pipeline comprises an electrostatic chuck purging pipeline and a sucking pump group pipeline which are arranged in parallel; the helium gas inlet pipeline comprises a pressure regulating valve, an electronic pressure gauge and a first pneumatic valve which are sequentially arranged along the gas inlet direction; a second pneumatic valve is arranged on the electrostatic chuck purging pipeline, and a third pneumatic valve is arranged on the sucking pump set pipeline. Uniform heat purging and temperature control on the bottom of the electrostatic chuck can be intuitively and effectively realized in pneumatic and electric control modes.

The invention relates to the technical field of control, in particular to a remote detection system and method for a control cabinet, and the system comprises the control cabinet, a detection assembly, a data processor, and a data memory. A first shell is arranged in the control cabinet, the detection assembly is used for detecting operation parameters of an equipment circuit in the control cabinet in real time, the detection assembly is arranged in the first shell and at the outer bottom of the first shell, and the data processor is arranged in the control cabinet and electrically connected with the detection assembly. The data processor processes circuit operation parameters, detected by the detection assembly in real time, of equipment in the control cabinet and then sends the circuit operation parameters to equipment corresponding to a user, and the data memory is arranged in the control cabinet and electrically connected with the data processor; the detection efficiency is greatly improved, the labor cost is reduced, and the stability and safety of the production process are also improved.

The utility model discloses a microcomputer protection measurement and control heat dissipation circuit device, comprising a main circuit breaker QF which is connected with three-phase power supplies L1, L2 and L3; the main loop comprises a motor M1 and a motor M2 which are connected with the main circuit breaker QF, the motor M1 is connected with a contactor KM1 and a contactor KM3, and the motor M2 is connected with a contactor KM2 and a contactor KM4; the secondary loop comprises a switch SB1, a loop 1, a loop 2, a loop 3 and a loop 4, the loop 1 and the loop 2 are used for controlling the motor to rotate forwards for heat dissipation, and the loop 3 and the loop 4 are used for controlling the motor to rotate backwards for exhausting and heating. The microcomputer protection measurement and control heat dissipation circuit device has the following beneficial effects: the microcomputer protection measurement and control heat dissipation circuit device can increase the temperature in the microcomputer protection measurement and control device when the temperature is relatively low, prevent water vapor from condensing, and discharge the water vapor.

The utility model relates to the technical field of flying dust treatment, in particular to a waterless flying dust treatment device which comprises a device shell, a fan is installed at one end of the inner wall of the device shell, an air inlet is formed in one side of the device shell, and the side, away from the air inlet, of the device shell is communicated with an air outlet. The impurity filtering assembly is arranged on the inner wall of the device shell; the filtering assembly is arranged at the position, close to the air outlet, of the inner wall of the device shell. Through cooperative use of the filter tank, the sundry tank, the rotating block and the round rod, the purposes of cleaning large impurities and preventing blockage can be achieved, the situation that cables and equipment are damaged due to the fact that a gap exists between the plugging device and a wall surface is avoided, the possibility of water and moisture permeation can be reduced, and the service life of the plugging device is prolonged. Risks of short circuit, equipment failure and electrical fire are reduced, leakproofness is improved, long-term use is facilitated, and safety performance is improved during use.

The invention discloses a method and a device for activating the performance of cadmium telluride power generation glass, relates to the technical field of preparation of cadmium telluride power generation glass, and solves the problems that the existing performance activation method is long in time, incomplete in performance activation and difficult to control, and the product is damaged by parameters in the process. The method comprises the following steps: S1, taking a product needing to be activated, controlling the temperature to a first preset temperature, and carrying out dark-state thermal activation; s2, heating the product obtained in the step S1 to a second preset temperature, keeping the constant temperature, and sequentially carrying out first-stage light activation and electron activation; s3, heating the product obtained in S2 to a third preset temperature, keeping the constant temperature, and sequentially carrying out second-stage light activation and electron activation; s4, cooling the product obtained in S3 to a second preset temperature; keeping constant temperature and sequentially carrying out third-stage light activation and electron activation; and S5, cooling the product obtained in the step S4 to a fourth preset temperature, and completing performance activation. The invention further provides a device based on the method.

The invention provides a file access method and a server, and the method comprises the steps: when an application process initiates a file access request in a user space, a kernel firstly intercepts the request, and verifies a target file through a newly added file access function. The file access function can obtain and compare a reference metric value and an actual metric value of the file, the reference metric value represents the original state data volume when the file is not tampered or damaged, and the actual metric value reflects the current data state of the file. By comparing the two metric values, the kernel can judge the integrity and security of the file. If the actual metric value is consistent with the reference metric value, the file is not maliciously tampered or damaged, and the kernel allows the application process to continue to access the file. Otherwise, the access request is rejected, so that the application process is effectively prevented from accessing malicious or damaged files, and the security and stability of the system are protected.

The utility model belongs to the technical field of diodes, and relates to a diode temperature compensation circuit, which comprises a power amplifier grid bias circuit, a power amplifier drain bias circuit, a high-frequency power amplifier and an output isolation circuit of the power amplifier which are electrically connected, the power amplifier grid bias circuit is used for providing a stable bias voltage for a grid of the power amplifier, the power amplifier drain bias circuit is used for providing a stable bias voltage for a drain of the power amplifier, and the high-frequency power amplifier is used for converting a low-frequency signal into a high-frequency signal and amplifying the high-frequency signal to drive a load. The output isolation circuit of the power amplifier is used for isolating the output of the power amplifier from a load, so that the stability and the reliability of the whole circuit system are protected. Rated power can be continuously and stably output, and the practicability of the interphone is greatly improved; cost is low and a circuit structure is simple.

The invention discloses a fiber-to-desktop communication system with a sensing and monitoring function, comprising an OLT device, an optical splitter, an optical fiber direct-fusion box and a plurality of ONU devices, wherein a downlink interface of the optical splitter is directly connected to an uplink interface of each ONU device in a one-to-one optical fiber manner, wherein the system further comprises a front-end sensing module and a terminal sensing module corresponding to each ONU device in a one-to-one manner, wherein the front-end sensing module is placed at the near end of the OLT device, and a plurality of terminal sensing modules are sorted according to preset requirements of sensing and monitoring, a forward sensing fiber of the front-end sensing module is fused with a forward sensing fiber of a first terminal sensing module through an optical fiber direct-fusion box, and a return sensing fiber of a current terminal sensing module is fused with a forward sensing fiber of a next terminal sensing module through an optical fiber direct-fusion box according to a sorting order, aiming to solve the technical problem of waste of trunk link resources caused by direct connection of multiple monitoring points to detection devices in a fiber-to-desktop communication system.

The invention discloses a structure and function integrated composite material supporting plate, a flexible screen assembly and a foldable terminal. The supporting plate comprises a metal connecting piece, and a first heat dissipation supporting piece and a second heat dissipation supporting piece which are symmetrically arranged on the two sides of the metal connecting piece. The metal connecting piece comprises a bending part and a first connecting part; a plurality of through holes are formed in the first connecting part; the first connecting parts are symmetrically arranged on the two sides of the bent part, the thickness of the first connecting parts is smaller than that of the bent part, and the first connecting parts are outward protrusions located in the middle of the bent part; the first heat dissipation supporting piece and the second heat dissipation supporting piece are fiber resin composite pieces formed by stacking a plurality of heat dissipation supporting layers or fiber resin composite pieces formed by alternately stacking a plurality of heat dissipation supporting layers and supporting layers; the heat dissipation supporting layer is a mesophase pitch-based carbon fiber reinforced resin-based composite material layer; and a second connecting part matched with the first connecting part is formed on the heat dissipation supporting layer or the supporting layer in the middle of the first heat dissipation supporting piece and the second heat dissipation supporting piece.

The invention relates to the field of video display chips, in particular to a high-reliability DBI interface design suitable for a DSI command mode, which comprises a DBI bus transceiver module, a DCS decoding module and a data flow conversion and transceiver module, according to a DSI command mode interface function, bidirectional communication requirements are considered, forward transmission can be divided into three steps of DBI bus data receiving, DCS command set command analysis and DSI data stream conversion and sending, reverse transmission can be divided into two steps of DSI byte stream receiving and conversion and DBI bus sending, and functions are realized through modularization.

The utility model provides a gas detection watch. The gas detection watch comprises a gas sensor module and a watch body, wherein the peripheral side of the watch body is provided with plugging holes; the gas sensor module is inserted into the insertion hole, a placement cavity is formed in the gas sensor module, and a sensing element is arranged in the placement cavity; the gas detection watch has a daily state and a detection state, when the gas detection watch is in the daily state, the peripheral wall of the insertion hole blocks the opening of the placement cavity, and when the gas detection watch is in the detection state, the opening of the placement cavity is exposed out of the peripheral side of the watch body and is communicated with external gas. Through the arrangement, the exposure risk of the sensing element is reduced, and the detection precision and the detection efficiency of the sensing element are improved.

The utility model provides a waterproof proximity switch, and relates to the proximity switch technology field, the waterproof proximity switch comprises a switch body and protection mechanisms, the upper side and the lower side of the switch body are both provided with the protection mechanisms, the protection mechanisms comprise installation assemblies, buffer assemblies and waterproof assemblies, the left side and the right side of the switch body are both provided with the installation assemblies, and the buffer assemblies are connected with the waterproof assemblies. Buffer assemblies are installed on the upper side and the lower side of the switch body, a waterproof assembly is installed on the surface of the installation assembly, through the arrangement of the protection mechanism, when the switch is used, the switch body is firmly installed on equipment, stable supporting is provided for the equipment, external impact and vibration are relieved through cooperation of a telescopic rod and a spring, and the waterproof assembly is installed on the surface of the switch body. The influence of external impact and vibration on the switch body is reduced, the service life of the switch body is prolonged, through the cooperation of the nano coating and the waterproof glue paint coating, moisture permeation can be effectively prevented, normal operation of the switch in a humid environment is ensured, and the waterproof performance of the switch is improved.

The utility model discloses an energy storage power station monitoring system, which comprises station control layer equipment and energy storage unit equipment, the station control layer equipment comprises a station control layer control switch, an A network gigabit switch, a B network gigabit switch, an A network gigabit convergence switch, a B network gigabit convergence switch, an A network EMS monitoring server, a B network EMS monitoring server, an operation table A, an operation table B, a data communication gateway machine and a PMS coordination controller; the energy storage unit equipment comprises a plurality of BMS battery management systems, a plurality of PCS converters, an A network monitoring switch, a B network monitoring switch and an energy storage end control switch. According to the utility model, monitoring data is divided into two sets of networks A and B, and data of the two sets of networks can be mutually backed up, so that data loss caused by transmission equipment faults can be avoided; and meanwhile, whether the equipment breaks down or not can be detected by comparing data transmitted by the two networks, so that the operation stability of the energy storage power station can be greatly improved.

The utility model discloses a distributed dust removal system which comprises a plurality of dust suction devices, a sewage pipe and a backflow treatment bin, the dust suction devices can be distributed in a plurality of areas needing dust removal, sewage outlets of the dust suction devices are communicated with the sewage pipe in parallel, and the tail end of the sewage pipe is connected with the bottom of the backflow treatment bin. A demisting device, an air outlet, a sludge pipe and a clear water pipe are arranged in the backflow treatment bin, the clear water pipe is connected with a water inlet pipe of the dust suction device after being connected with a water pump and provides a water source for the dust suction device, an inlet of the sludge pipe extends into the bottom of the backflow treatment bin, an outlet of the sludge pipe is connected with the filter press, and the air outlet is connected with the main fan. The starting end of the sewage pipe is higher than the tail end of the sewage pipe in the horizontal direction, sewage can conveniently flow back to the backflow treatment bin, dust is effectively mixed at a high speed for multiple times in the dust collection stage through the arrangement of the dust collection device, the dust collection efficiency and effect are improved, the treatment process of the dust collection system is shortened, water resources are recycled, and the environment is protected. And'zero discharge 'of dust and sewage is realized.

The utility model discloses a wet dust collector which comprises a cylinder body, a dust inlet and a drain outlet are arranged on the cylinder body, a shunting device and a mixing pipe are arranged in the cylinder body, the mixing pipe is arranged below the shunting device, the dust inlet, close to the shunting device, of the mixing pipe is in a horn mouth shape, and the length of the mixing pipe is not less than three times of the diameter of the mixing pipe. The center line of the flow dividing device and the center line of the mixing pipe coincide with the center line of the cylinder body, the sewage draining exit is formed in the bottom of the cylinder body, the bottom of the cylinder body and the horizontal plane are arranged in an inclined mode, an air draft system is arranged at the end close to the sewage draining exit, and dust-containing waste gas and water mist are effectively mixed multiple times through the flow dividing device and the mixing pipe. And the dust removal efficiency and effect are improved.