173results about How to "Protection reached" patented technology

The present invention provides a charge-discharge protection circuit of a multiple-section series Li-ion battery, including at least two section Li-ion battery mutually serial connection in orders, an external connective load and a charge power; characterized in that two ends of each section Li-ion battery is accordingly connected with a sampling circuit and a signal conversion circuit, further including a public execution circuit. The invention fully applies the single-section Li-ion battery protection chip, each Li-ion battery is matched with a single-section Li-ion battery protection chip, forming an unit circuit by matching with a fet; each unit circuit includes a sampling circuit and a signal conversion circuit, for monitoring voltage of each single Li-ion battery and output control signal; the charge-discharge voltage and the current of each single Li-ion battery is wholly controlled by the execution circuit which core is the fet, only when the working voltage of the single Li-ion battery is too high and low, or the working current of the Li-ion battery is too high, the charge or discharge of the circuit is closed, achieving the aim of the protecting the Li-ion battery.

The invention discloses a method for preparing a needle coke material by catalytic cracking slurry. A protective zone and a hydrogenation reaction zone are arranged; catalytic cracking oil firstly enters the protective zone to adsorb most of catalytic cracking catalyst powder, then is mixed with hydrogen to be fed into a heating furnace, and enters the hydrogenation reaction zone to carry out hydrogenation treatment after being heated. Most of catalytic cracking catalyst powder entrained in the catalytic cracking slurry can be filtered to achieve the purpose of protecting a primary hydrogenation catalyst and achieving long-term operation by providing the protective zone in front of the hydrogenation reaction zone. In addition, most of sulphur in the catalytic cracking slurry is removed by hydrorefining of the catalytic cracking slurry, and the produced qualified needle coke material is produced.

The embodiment of the invention provides a rotating shaft mechanism and a foldable mobile terminal. A swing arm assembly and a synchronization assembly are arranged on the two sides of a main shaft assembly of the rotating shaft mechanism, so that when a swing arm rotates around the main shaft assembly, a synchronization arm on the same side rotates along with the swing arm, and a synchronizationarm and a swing arm on the other side are driven to rotate; synchronous movement of shells on the two sides of the foldable mobile terminal comprising the main shaft assembly can be realized, so thatthe two sides of a flexible screen synchronously move, and the stress of the flexible screen is relatively uniform; moreover, as the swing arms on the two sides of the main shaft assembly rotate around different axes, a containing space capable of containing the flexible screen can be formed in the rotating process of the main shaft assembly through the design, and damage to the flexible screen isreduced.

The invention provides an overcurrent detection and protection circuit which comprises a driving unit, a sampling unit, a signal generation unit, a closing unit and a maintaining unit, wherein the driving unit is used for driving a load circuit; the sampling unit is used for collecting currents in a loop of the load circuit; the signal generation unit is used for generating an overcurrent signal when the currents in the loop of the load circuit are larger than a preset value; the closing unit is used for closing the driving unit when the overcurrent signal is received; and the maintaining unit is used for maintaining a close state of the driving unit until a control signal sent by an MCU for starting the driving unit is received. According to the overcurrent detection and protection circuit, when the currents in the loop of the load circuit are detected to be larger than the preset value, the driving unit can be closed rapidly, the closed state is locked, and the circuit is protected.

The invention discloses a method for preparing a needle coke material by catalytic cracking slurry. A protective zone and a hydrogenation reaction zone are arranged; catalytic cracking oil firstly enters the protective zone to adsorb most of catalytic cracking catalyst powder, then is mixed with hydrogen to be fed into a heating furnace, and enters the hydrogenation reaction zone to carry out hydrogenation treatment after being heated. Most of catalytic cracking catalyst powder entrained in the catalytic cracking slurry can be filtered to achieve the purpose of protecting a primary hydrogenation catalyst and achieving long-term operation by providing the protective zone in front of the hydrogenation reaction zone. In addition, most of sulphur in the catalytic cracking slurry is removed by hydrorefining of the catalytic cracking slurry, and the produced qualified needle coke material is produced.

The invention relates to an automatic adjusting, protecting and detecting circuit for a power supplying device. A first impedance unit is coupled to the output end of the power supplying device and generates an output voltage according to the negative current of the power supplying device. A second impedance unit is coupled to the output end of the power supplying device and generates a reference voltage. A comparing unit is coupled to the first and second impedance units, and generates a protective signal based on the output voltage and the reference voltage to stop the power supplying device. An adjusting unit is coupled to a second impedance unit and the comparing unit and adjusts the voltage so as control the protective signal output by the comparing unit. In this way, the voltage is adjusted through the adjusting unit, and a protective signal is controlled to be output by a comparing unit, thereby protecting the product.

In hardware, smart cart is adopted as reliable execution environment of mobile agent; and in software, encryption techniques are adopted to ensure confidentiality and security of mobile agent and information of administer of network. Under management of validity and verification, executing task of managing network, the mobile agent is divided into public and private codes and data, which are protected by conventional encryption / decryption algorithm and encryption / decryption algorithm in published cryptographic key / secret code system. Kernel portion of mobile agent is executed in smart cart. From hardware and software synthetically, the method guarantees security of network management of mobile agent, lowers difficulty of security and protection, increases flexibility, configurability and expandability.

A soil nail grass-planting high abrupt slope protecting structural system comprises a planting layer, soil nail reinforcing bodies, planting boards and a metal screen. The planting boards are fixed to a diagonal plane of a rock-soil slope through the soil nail reinforcing bodies and divide the slope into a plurality of section surfaces; the metal screen and the planting layer are laid on the section surfaces, and the planting layer is fixed by the metal screen and the planting boards through the soil nail reinforcing bodies; through the combined action of the metal screen, the planting layer, the planting boards and the soil nail reinforcing bodies, the soil nail grass-planting high abrupt slope protecting structural system which can reinforce, protect and beautify the rock-soil slope is formed. A construction method of the structural system includes the technological processes of preparation of construction, construction of the first row of soil nail reinforcing bodies, installation of the first row of planting boards, sequential installation of the rest of soil nails and the planting boards, laying of monitoring points, laying of the metal screen, laying of the planting layer, covering of non-woven cloth and maintenance. The structural system is simple, short in construction period, low in labor investment and affordable; scaffold operation is not needed during construction on the abrupt slope, safety ropes are used for protection, and the planting boards are used as treading points, so that the safety coefficient is high.

The invention provides a method for realizing burglary prevention and data protection of a hard disk. The method can effectively prevent the hard disk from being burgled. The method comprises the following steps of (1) binding the hard disk with a computer by a manual program: reading a computer feature code, transmitting to an embedded master control module through a control line, and storing in an embedded memorizer, and (2) performing authentication with a server program or the manual program when a system is started up: reading a system feature code, transmitting to the embedded master control module through the control line, comparing with the computer feature code stored in the memorizer, allowing the dedicated hard disk to be available if the feature code passes, and allowing the dedicated hard disk to be unavailable if the computer feature code fails. According to the method for realizing the burglary prevention and the data protection of the hard disk, the data interaction between a mainboard and the hard disk is conducted by a data line, so that the data security purposes such as the burglary prevention of the hard disk, and prevention of starting from win pe, an optical disk or a slave disk are achieved, and the purpose of the data protection is achieved.

The invention relates to the technical field of river and lake desilting, in particular to a river and lake contaminated bottom sediment ecological desilting ship comprising a ship body, conveying pipes, conical hoppers, suction pumps, rotation drive devices, connection devices and [-shaped rotation frames. Rectangular frames are fixed to the two sides of the ship body. A slide table is arranged on each rectangular frame in a sliding manner. A winch is fixed to each slide table. A vegetation protection device is hoisted on each winch through a steel wire rope. A mechanical arm is fixed to eachvegetation protection device. The upper ends of the conveying pipes are fixedly connected with the slide tables. The lower ends of the conveying pipes are fixedly connected with the movable ends of the mechanical arms. The drive ends of the rotation drive devices are fixedly connected with the connection devices. A clamping jaw used for grabbing or releasing the corresponding [-shaped rotation frame is installed on each connection device. Winding columns which extend downwards and are used for winding plant are arranged at the two ends of each [-shaped rotation frame. The ship body rotates todrive the [-shaped rotation frames to rotate, and therefore the strip-shaped plant can be curled, the coverage area of plant bodies can be minimized, and the aim of protecting the plant is achieved.Meanwhile, precise positioning can be achieved during desilting, and the river and lake contaminated bottom sediment ecological desilting ship can avoid river bottom vegetation.

The invention discloses a privacy protection method and system for bypass attacks in a smart home environment. The method comprises the steps of performing sorting and clustering on sensor types and sensor sending time in the smart home environment to obtain DFR parameters; performing labeling on noise data through the DFR parameters, calling a semi-supervised learning algorithm to obtain learning parameters, and distributing the learning parameters to all sensor nodes; and substituting the learning parameters into a prediction function by the sensor nodes to build a prediction model, inputting current network state information into the prediction model, and judging whether the noise data is sent or not. According to the method and the system, the noise data can be adaptively added according to behavior habits of people and sensor network states in the smart home environment, so that a global attacker cannot analyze a real or wrong behavior of a user even if the global attacker can monitor all wireless radio-frequency signals, and the purpose of protecting user privacy is achieved.

The invention provides a Bayesian attack graph-based semi-passive industrial control network security analysis tool and a Bayesian attack graph-based semi-passive industrial control network security analysis method, which relate to the technical field of network security, and comprise a semi-passive information acquisition module for acquiring a combination of an active scanning report, network message data and administrator correction suggestions and taking the combination as an input file; an asset list establishing module: establishing an asset list, and generating. P files as input files of the attribute attack graph generation module and the Bayesian attack graph generation module; an attribute attack graph generation module which is used for inputting template network topology information and node information and generating an attack path; and a Bayesian attack graph generation module which is used for comprehensively analyzing the information of the whole network based on the network information and logic rules recorded by the Datalog statement, and finally generating all possible attack graphs. The method has high compatibility for an industrial control network, comprehensively utilizes multiple charts to visually assist network security analysis, and can achieve dynamic analysis and hidden danger prevention and control.

The invention discloses the portable information process device with loss-protection function, which comprises the remote service system, the receiving unit, the CPU, the input unit, the display unitand the program process storage area. When the device being lost, the lost device can be locked or self-destructed through the remote service system. Thus, the data in the portable information process device are protected against the use by other person. The information of the user who lost the device can be displayed on the display device so that the internal infomation is protected even the device is lost.

The invention discloses a device and a method for protecting a source code. The device comprises a keyword information storage unit, an irreplaceable identifier information storage unit, an identifier replacing information storage unit, an identifier selecting unit, and an identifier replacing unit. The method comprises the following steps: prestoring keyword information, irreplaceable identifier information, and identifier information before and after an identifier is replaced, and executing the following steps: selecting the corresponding identifier in the source code according to a preset rule; comparing the selected identifier with the keyword information and the irreplaceable identifier information; and replacing the identifier different from the keyword information and the irreplaceable identifier information according to the identifier information before and after the identifier is replaced. In the invention, the identifier obtained after replacing the specific identifier in the source code contains no meaning or information. Therefore, the source code of which the identifier is replaced is protected well.

The invention provides a memory data protection method and system. The memory data protection method comprises the steps that when memory data to be protected is written into a target page, a page identifier of the target page is obtained; according to the page identifier, it is known that the target page is a sensitive page, a shadow page dual to the target page is allocated for the memory data to be protected; honey pot type processing is conducted on the memory data to be protected, false data of the memory data to be protected is determined and is written into the shadow page; page table item information of the sensitive page is transferred to the shadow page from an initial page, wherein the initial page is used for storing page table item information of the target page, and the shadow page is used for storing the page table item information of the sensitive page and the shadow page. The system comprises a user interface, a page identification unit and a page inversion unit. Protection of memory data is achieved by constructing the shadow page to hide the memory data to be protected, the operation is simple, quick and convenient, and the overall performance of the system is not affected.

The invention provides a rotating shaft mechanism and electronic equipment. The rotating shaft mechanism comprises a main shaft, two shell fixing pieces, a sliding connecting rod and a damping assembly, wherein the two shell fixing pieces are both rotatably connected with the main shaft. The shell fixing pieces are provided with a first sliding groove and a second sliding groove which communicatethrough an open hole, and the second sliding groove is arranged at one side of the first sliding groove in the extending direction of the main shaft. One end of the sliding connecting rod is rotationally connected with the main shaft; the other end of the sliding connecting rod can slide along the first sliding groove; first protrusions are arranged on the surface of the sliding connecting rod. The damping assembly comprises a sliding block and an elastic structural part, the sliding block is inserted into the open hole, the elastic structural part is contained in the second sliding groove, under the elastic force effect of the elastic structural part, the sliding block slides along the open hole and stretches into the first sliding groove, and the sliding block can be clamped with the first protrusions. According to the embodiment of the invention, the arm of force of the damping force between the damping assembly and the shell fixing pieces is relatively large, so that relatively large torsion can be output in a narrow space, and the rotating shaft mechanism can be stably maintained at a set rotating position.

The present invention provides a watch comprising a body, a dormancy sensor, a pressing unit, a cover body and a magnetic member, wherein the main body comprises a smart meter; the dormancy sensor electrically connects the smart meter and has an induction range; the pressing unit is pressably arranged at the body and has a magnetic member; the cover body is pivotally connected to the body; and the magnetic member is arranged on the cover body and is corresponding to the magnetic member and the dormancy sensor. When the cover is covered with the body, the magnetic member enters the sensing range, and the dormancy sensor transmits a dormancy signal so that the smart meter enters the sleep mode, and the magnetic member and a magnetic portion generate magnetic attraction to keep the cover body and the body in the closed state When the pressing unit is pressed in the closed state, the magnetic portion and the magnetic member are displaced to weaken the magnetic force, and the cover is opened with respect to the body, and the magnetic member is separated from the sensing range, and the dormancy sensor transmits s wake-up signal to wake up the smart meter.

The invention is suitable for the technical field of data storage and provides a method and a system for managing data of flash memory storage equipment. The method comprises the following steps of: configuring at least two ECC (Error Correction Code) supervisor codes with different bit lengths in the flash memory storage equipment, wherein the two codes are respectively marked to be a first ECC supervisor code with an ordinary bit length and a second ECC supervisor code with a longer bit length; and selecting storage data matching with the second ECC supervisor code in a storage region of important data. In the embodiment of the invention, at least two ECC supervisor codes with different bit lengths are configured in the flash memory storage equipment and respectively marked to be the first ECC supervisor code with the ordinary bit length and the second ECC supervisor code with the longer bit length, and the storage data matching with the second ECC supervisor code is selected in the storage region of the important data, thereby data protection can be achieved without backing up protected data by occupying an extra storage space of the storage equipment, and the storage space of the storage equipment is saved.

The invention relates to the technical field of arts and crafts and discloses falling protection equipment for displaying fragile artware. The falling protection equipment comprises a base, the innerbottom wall of the base is fixedly connected with a pneumatic cylinder, the top of the pneumatic cylinder is fixedly connected with an air pipe, air blocking plugs are connected into the air pipe in asliding manner, the sides, opposite to each other, of the two air blocking plugs are fixedly connected with reset springs, limiting blocks are fixedly connected to the sides, opposite to each other,of two switch rods, spring pieces are arranged at the bottoms of the limiting blocks, a containing table is fixedly connected to the top of the base, buffer springs are fixedly connected to the top ofthe containing table, a containing plate is fixedly connected to the tops of the buffer springs, and a connecting rod is fixedly connected to the bottom of the containing plate. According to the falling protection equipment for displaying the fragile artware, through cooperative use of the placing plate and the connecting rod, the effect of protecting the artware when the displayed fragile artware falls off is achieved.

The invention discloses a file protection method and system based on an event-driven mechanism. The file protection method comprises the following steps: conducting redundant backup of a protected file to generate a backup file; analyzing an event message of the system to determine whether there is an illegal modification operation to the protected file or not; If there is, preventing the writing operation of the system; according to the backup file, checking whether the protected file is modified or not; if the protected file is modified, restoring the modified protected file according to the backup file. Therefore, by conducting redundant backup on the protected file while capturing the event message of the system, determining the operation to protect the file through the event analysis, preventing the protected file from being subjucted to all write operations and at the same time, recovering the illegally modified file in real time by scanning the file and comparing the file with the backup file, the purpose of protecting the file is thus achieved.

The invention relates to the technical field of engineering surveying and mapping, and discloses an surveying and mapping instrument for engineering surveying and mapping. The instrument comprises a bearing plate, and a connecting column is fixedly mounted at the bottom of the bearing plate. According to the surveying and mapping instrument for engineering surveying and mapping, a lever is formed through the connection relation of the first connecting rod, the second connecting rod and the four-corner balance ball, the supporting rods in the inclined state are subjected to contraction adjustment under the action of the auxiliary balls according to the lever principle, and when the independent supporting rod on one side is subjected to telescopic change, the other three supporting rods can automatically adapt to the change of the inclined supporting rods under the lever action formed by the first connecting rod, the second connecting rod and the four-corner balance ball to keep the overall balance degree of the surveying and mapping instrument; an internal threaded pipe is inserted from a connecting groove formed in the bottom end of the interior of the connecting frame; and the top of the internal threaded pipe is attached to the bottoms of the first connecting rod and the second connecting rod which keep balance, and the device can automatically calibrate balance and is higher in practicability.

The invention provides a stack protecting method based on program instrumentation and dynamic information verification. The stack protecting method adopts a GCC compiler based instrumentation module (1) for inserting placement, checking and verification information and error handling code segments during source program compiling and a dynamic shared library based Hook module (2) for initializing item information in a verification information buffer area and dynamically updating the verification information. The probability of attack success of attackers is reduced through dynamic generation ofthe verification information and checking of fine-granularity stack information integrity, and the safety of a computer system and software is improved.

The invention discloses a rectification module of an intelligent high frequency switch power supply. A main controller is connected with a DC / DC (Direct Current / Direct Current) transfer circuit, an overvoltage overcurrent and short circuit protection circuit, an overtemperature protection circuit, a communication interface circuit, and an information acquisition and feedback circuit; the input terminal of the DC / DC transfer circuit is sequentially connected with a passive PFC (Positive feedback circuit) correction circuit, a rectification circuit, and a over-lightning protection processing and filter circuit; the output terminal of the DC / DC transfer circuit is sequentially connected with a smoothed filter circuit and an output protection circuit; the whole connection forms a rectification module. The rectification module is an important part of the intelligent high frequency switch power supply, and integrates the rectification function with the charging function to effectively play the rectification role, thus the direct current voltage output and the operating voltage output of the switch power supply are ensured stably.

The invention discloses a die peeling device with a safety push-up pin, which can be applied to peeling a die from a bond pad in the FlipChip IC (integrated circuit) package process. The bond pad is arranged on one end surface of a sleeve, and the die to be peeled is bonded on the bond pad. The device comprises a push-up pin which is arranged inside the sleeve and used for being driven by a driving device to push up the die apart from the bond pad; and a regulating mechanism which is arranged inside the sleeve and used for holding the push-up pin and regulating the effective stress length of the push-up pin to control the Euler critical load of the push-up pin. The device is characterized in that the push-up pin is a safety push-up pin which can protect the semiconductor die from being damaged and has a preset bending feature, namely, the push-up pin bends when reaching a preset rated push-up force; and the value of the preset rated push-up force is between a die peeling force and a die damage force. The die peeling device disclosed by the invention is compatible to the conventional die peeling and pickup processes and has the characteristics of safety, high efficiency and high peeling reliability.

The invention discloses an apparatus and a method for protecting a sample of a secondary ion mass spectrometer. The secondary ion mass spectrometer comprises an electron emitter and an electron deflection apparatus. An electron emitted by the electron emitter deflects through the electron deflection apparatus and reaches the surface of the sample. The sample protection apparatus and method adopt a structure of a sampling circuit, a control circuit and an electromagnetic adjusting apparatus. The control circuit controls the electromagnetic adjusting apparatus based on a monitor signal of the sampling circuit towards the sample. The electric field or magnetic field generated by the electromagnetic adjusting apparatus can change the motion locus of the electron and make the electron deviate from the sample so as to achieve the goal of protecting the sample.

The invention relates to an overcurrent and overpower protection device which comprises a current detection unit, a voltage detection unit, a first control unit and a switching unit. The current detection unit is used for detecting current of an Ethernet network power supply socket to produce a current value; the voltage detection unit is used for detecting voltage of the Ethernet network power supply socket to produce a voltage value; the first control unit is used for producing a first control signal according to the current value and a default value, calculates a first power value according to the current value and the voltage value and produces a second control signal according to the first power value and a second power value to control power supply states of a plurality of connection ports; and the switching unit is used for connecting or disconnecting the Ethernet network power supply socket with a voltage converter according to the first control signal.

The invention provides an electronic nose gas detection system with a protection function. By means of improvement of corresponding hardware, a routing algorithm and a protocol stack, the high-robustness Internet of things is achieved, and real-time monitoring on gas is achieved, and a self-protection measure is designed to deal with damage of corrosive gas to a sensor on the premise that gas recognizing and concentration obtaining are completed. The self-protection measure particularly comprises the following steps that after the corrosive gas is detected, a processor controls a sensor node power supply to be switched off, and a gas inlet valve coordinates with a vacuum pump; the gas inlet valve is switched off to block entrance of the corrosive gas, the power of the vacuum pump is controlled to be increased, therefore, the corrosive gas in a gas chamber is quickly exhausted, and contact between a sensor node and the corrosive gas is reduced; the concentration of gas in a reaction chamber is estimated through the air draft volume, normal working is recovered when the concentration reaches the standard, and then the self-protection function is completed.

An over-current protection circuit of an LED constant-current driving circuit comprises an LED, a switching tube and a switching control module, wherein an output end of the switching tube is grounded after being electrically connected with the LED, an input end of the switching control module is electrically connected between the output end of the switching tube and the LED, an output end of the switching control module is electrically connected with a control end of the switching tube, and the switching control module is used for controlling the connection and the disconnection of the switching tube by controlling of the control end of the switching tube. The peak current of the LED is limited through the design method which is simple, clear and low in complexity, so that the LED is protected.

The invention discloses a circuit protection device which is connected with a test device and a device under test. The circuit protection device comprises a first interface which is electrically connected with the device under test, wherein a first level state is acquired; a protection circuit with one end thereof electrically connected with the first interface, wherein the first level state is acquired and the on / off state of the protection circuit is controlled according to the first level state; and a second interface with one end thereof electrically connected with the other end of the protection circuit, and the other end of second interface electrically connected with the test device. By using the circuit protection device, the first level state of the device under test is acquired through the first interface and the on / off state of the protection circuit is controlled according to the first level state. Therefore the protection for the test device is obtained.