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51results about How to "Guaranteed normal read" patented technology

Storage method, system and device

The invention discloses a storage method, a system and a device, wherein the method includes that storage keys are used for performing encryption storage to data files; the storage keys are encrypted in two different kinds of encryption modes to form a personal key and a data key; a storage key can be obtained after the personal key is decrypted with a key of users to whom the data files belong as a decryption key; a storage key can be obtained after the data key is decrypted with the data files before the encryption as a decryption key; the encrypted data files, the personal key and the data key are stored; whether identical data files exist in stored data files is determined before data files of a novel user are stored; and the data files are not stored repeatedly if identical data files have already been preserved before, the data files are used for decrypting the data key to obtain a storage key, and a key of the novel user is used for encrypting the storage key to form a personal key of the novel user. According to the technical scheme provided by the embodiment of the storage method, the system and the device, both the repeated storage of identical data files can be avoided, and any other users including cloud storage service providers are guaranteed to be unable to access plaintext data.
Owner:TIANJIN SURSEN INVESTMENT CO LTD

Control system special for industrial dust removing equipment and control method of control system

The invention discloses a control system special for industrial dust removing equipment and a control method of the control system. The control system is characterized by comprising a controller, a power source detection module, a pressure detection module, a temperature detection module, a material level detection module, an alarm output module and an RS485 communication module, wherein the power source detection module, the pressure detection module, the temperature detection module and the material level detection module are all connected with the input end of the controller and are respectively used for detecting power failure of the industrial dust removing equipment, the pressure difference value of inner and outer surfaces of a filter cylinder, the temperature of the filter cylinder and the material level of talcum powder in a powder blower; the alarm output module is connected with one output end of the controller; several other output ends of the controller are further respectively connected with a draught fan, the powder blower and a reverse blow valve; the controller is connected with an upper computer or a system server through the RS485 communication module, so that remote control is realized. The control system disclosed by the invention is simple in structure and high in automation degree.
Owner:AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD

Device for rapidly detecting open circuit of infrared receiving tube

The invention provides a device for rapidly detecting an open circuit of an infrared receiving tube and belongs to the technical field of information processing of a measurement industry. The device comprises an infrared array I and an infrared array II, which are symmetrically arranged at two sides of a coding disc; the infrared receiving tube comprises first-row receiving tubes arranged on the infrared array I and second-row receiving tubes arranged on the infrared array II; an infrared transmitting tube comprises first-row transmitting tubes arranged on the infrared array I and second-row transmitting tubes arranged on the infrared array II; the first-row receiving tubes and the first-row transmitting tubes are mutually crossed and arrayed; the second-row receiving tubes and the second-row transmitting tubes are mutually crossed and arrayed; the first-row receiving tubes correspond to the second-row transmitting tubes in a one to one manner, and the first-row transmitting tubes correspond to the second-row receiving tubes in a one to one manner; the infrared transmitting tube is electrified and the infrared receiving tube is not electrified; the first-row transmitting tubes provide infrared light illumination to the adjacent first-row receiving tubes, and the second-row transmitting tubes provide the infrared light illumination to the adjacent second-row receiving tubes, so that rapid discharging of a junction capacitance is realized. By adopting the device provided by the invention, the aim of rapidly detecting the open circuit of the infrared receiving tube is realized.
Owner:WENLING YOUNIO WATER METER

Three-dimensional vertical resistive random access memory array and operation method and device thereof, equipment and medium

ActiveCN111564169AOvercoming misprogrammed operationsReduce the probability of misprogrammingDigital storageEnergy efficient computingEngineeringElectrical and Electronics engineering
The invention discloses a three-dimensional vertical resistive random access memory array and an operation method and device thereof, equipment and a medium. The operation method comprises the step ofselecting a specific resistive random access memory in the three-dimensional vertical resistive random access memory array as a selected unit to perform programming operation. The programming operation comprises the following steps: respectively and correspondingly applying voltages Vdd, 0 and Von1 to a word line, a bit line and a selection line where a selected unit is located; applying zero voltage to a selection line where a first non-selected unit corresponding to the selected unit and different from the selected unit is located; in the word lines and the bit lines corresponding to the second non-selected units corresponding to the same selection line as the selected units, except the word lines and the bit lines where the selected units are located, applying voltages V1 to the rest word lines, and apllaying voltages V2 to the rest bit lines, wherein the voltages V1 and V2 meet the condition that the voltage drops of all the second non-selected units are smaller than Vdd/2. Duringprogramming operation, misoperation caused by voltage drop of the resistive random access memory and fluctuation of corresponding programming voltage is overcome.
Owner:PEKING UNIV
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