73results about How to "Prevent operability" patented technology

The invention relates to a multi-protocol industrial communication safety gateway and a communication method with the gateway applied. In the data communication process, a source gateway encrypts data through a secret key management mechanism module and a VPN encryption and decryption module and then sends the data to a target gateway. The target gateway decrypts the data through the VPN encryption and decryption module, and provides safe detection and control service for data communication through a safety domain safety protection module; if the data are safe, secret key decryption is carried out on application layer data, the types of the application layer data are judged, an application management safety module is used for management if the application layer data are application management data, and an application layer message detecting and filtering module is called for detecting and filtering messages if the application layer data are application layer messages. The mode of combination of the VPN encryption and decryption, the secret key encryption and decryption, and the application layer message detecting and filtering is adopted for communication safety assurance; the safety domain safety protection and the application safety management are adopted for gateway application safety assurance.

The invention discloses a monitoring realization-based on-line examination system and method. The system comprises an examinee user terminal, a manager user terminal, a server terminal, an examination question base, an examination paper generation module and an examination paper base. The examinee user terminal receives examinee logging information and an examinee answer sheet; the manager user terminal sets an examination requirement and carries out real-time monitoring on an examinee answering situation; the server terminal verifies the logging information of the examinee user terminal, responds to an instruction of the manager user terminal, shields responses of two hot keys: Ctrl+V and Ctrl+C, and records clicking situations of a keyboard and a mouse; the examination question base stores single questions of various examination questions; the examination paper base visits the examination question base to generate an examination paper or directly visits and invokes information in the examination paper base to generate an examination paper; and the examination paper base stores various examination papers generated by enterprises. With on-line examination services provided by the system, on the one hand, an examinee can take an examination any time any where; and on the other hand, a manager can monitor an examination process in real time. Therefore, cheating by the examinee can be prevented, thereby ensuring effectiveness as well as fairness and justice of the examination.

The invention relates to a method for diagnosing fault of a wheel speed sensor of a vehicle, wherein the vehicle is provided with at least two wheels, each of which is provided with a wheel speed sensor. The method comprises the steps of obtaining the output signal of the wheel speed sensor to be examined on the wheel to be examined and the output signal of other wheel speed sensor on at least one other wheel, and diagnosing the fault of the wheel speed sensor to be examined based on the output signal of the wheel speed sensor to be examined on the wheel to be examined and the output signal of the other wheel speed sensor on the at least one other whee. The invention also relates to a controller for a vehicle and a vehicle comprising the controller. The method can be implemented in real time and is capable of diagnosing the fault successfully and preventing false start and misoperation of an ABS (Anti-lock Braking System) and/or an ESP (Electronic Stability Program) reliably, and therefore, reliable control on the wheel is further improved, and the operating performance of the vehicle is improved.

The invention discloses an anti-misoperation method, an anti-misoperation device and an anti-misoperation system of a touch screen. The anti-misoperation method comprises the following steps: starting a necessary software platform and a hardware platform in advance, waiting for and obtaining input information of the touch screen, directly reporting reliable data, and judging whether the operation expressed by the reliable data is an uncertain operation after receiving UP information; reporting a certain operation, and judging whether the operation expressed by the operation at that time conflicts with the actual operation purpose of a user comprehensively expressed by auxiliary information and the reliable data according to the reliable data of the uncertain operation and the auxiliary information; and directly reporting when the operation is the same with the actual operation purpose of the user, and constructing and reporting the actual operation purpose of the user when the operation conflicts with the actual operation purpose of the user. The anti-misoperation device comprises a pre-starting module, an information obtaining module, a first execution module, a second execution module and a third execution module. The anti-misoperation system comprises a hardware collection layer, a driving layer, a framework layer and an application layer. The anti-misoperation method, the anti-misoperation device and the anti-misoperation system of the touch screen can prevent wrong judgment on the operation of the user from occurring to some extent.

An intelligent washing machine door cover safety system and method are characterized in that the intelligent washing machine door cover safety system comprises a controller, a fingerprint identifier, a motor driving module, a detection module, an electromagnetic locking module, a fingerprint and digital code data storage module, a touch display screen and a battery power supply module, the controller is connected with the fingerprint identifier, the motor driving module, the detection module, the electromagnetic locking module, the fingerprint and digital code data storage module, the touch display screen and the battery power supply module, and the battery power supply module is connected with the controller, the fingerprint identifier, the motor driving module, the detection module, the electromagnetic locking module, the fingerprint and digital code data storage module and the touch display screen. The intelligent washing machine door cover safety system and method realize fully automatic opening and closing of a washing machine door cover, have the function of identifying the user identity through fingerprints and digital codes, guarantee safety of clothes, have the automatic door cover locking and closing function, and guarantee personal safety of children.

The invention discloses a security certification system based on a unidirectional transmission broadcast television network. The security certification system comprises a data source server end, a signature encryption and certificate management system and a data receiving end, and solves several security problems that the broadcast television network currently faces. On one hand, secure and reliable certification is provided for secure data transmission of a broadcast television server side, on the other hand, illegal operations that files are tampered, replaced, maliciously replaced and the like in the transmission process of the unidirectional network are effectively prevented, and meanwhile television advertisements are also prevented from being replaced by criminals with profitable advertisement of the criminals.

The invention relates to a nuclear reactor earthquake protection warning system and a monitoring control method. The system comprises intelligent sensor modules and a main control unit, and is connected into a data communication network by a twisted pair. The intelligent sensor modules comprise triaxial acceleration sensors which are connected in sequence, an A/D (analog/digital) converter, a single-chip processor, a communication chip and a communication interface. The main control unit comprises a main control module and a display, audible-visual annunciator, a keyboard, a nuclear reactor emergency shut down switch circuit and a communication interface circuit connected with the main control module. The installation and control method of the system comprises the following steps of: (A) embedding a plurality of intelligent sensor modules according to the theory of distributed network topology and the principle of making every effort to obtain the maximum monitoring area; (B) inputting control parameters into a main control module of the nuclear reactor earthquake protection warning system; (C) comparing signals collected by the intelligent sensor modules with the control parameters in the main control unit; and (D) judging whether to automatically stop the working of a nuclear reactor in earthquakes and strong shocks, instruct working personnel to escape, and the like.

The invention discloses an ink box chip which comprises a communication interface unit, a data conversion unit and a storing unit, wherein the communication interface unit is used for communicating with an imaging device in which the ink box is installed to receive or send ink amount information of a first format; the data conversion unit is used for converting the ink amount information of the first format to ink amount information of a second format, and the bit number contained in the second format is larger than the bit number contained in first format; the storing unit is used for restoring the ink amount information of the second format; when the imaging device needs to read the ink amount information of the ink box chip, the data conversion unit is also used for restoring the ink amount information of the second format stored in the storing unit to the ink amount information of the first format. As the bit number of the ink amount information stored in the storing unit is larger than that of the information received by the imaging device, the actual ink amount information cannot be accurately obtained when other illegal devices read the storing unit, so that the safety of data of the ink box chip is effectively protected.

The invention provides a locking device of a smoke barrier at an air inlet of a range hood. The locking device comprises a driving device and a buckle, wherein the driving device is arranged at inside of a panel of the range hood; the buckle is positioned at the lower end of the smoke barrier which is hinged on the air inlet of the panel; and the locking device is characterized in that a fixing member is connected to the lower part of the driving device; and the driving device drives the fixing member to move so that the fixing member is buckled with the buckle or loosened so as to lock or open the smoke barrier. The locking device of the smoke barrier at the air inlet of the range hood is simple in structure and convenient to produce and assemble; and through the locking device, the automatic locking and open operation of the smoke barrier can be realized; the oil fume backflow caused by untight closing of the smoke barrier can be prevented; the environment of a kitchen is cleaned; the situation that the locking device cannot be used caused by oil pollution can be avoided; and the service life of the locking device and the service life of the range hood are guaranteed.

The invention relates to a production management system and a production management method, a control program, a readable storage medium. Prevention of operation loss and misoperation with low investment, and navigation function with saved manual work are performed through on-line management of operator information in a production line with manual carrying/off-line devices, and thus even in a production line with off-line devices, pseudo-on-line management can be realized with high efficiency. Each management personal computer (2) comprises a flow check unit (212) which verifies operator/time based on operator information containing operator ID and from a card reader (4), and also comprises an operator information/verification information transfer unit (214) which allows each management personal computer (2) to upload the operator information containing operator ID and verification information containing verification results to a host device (3); the host device (3) comprises an operator information/verification information registration unit (311) which registers the uploaded operator information containing operator ID and verification information containing verification results.

The invention discloses an external multiway gas compression type atomization control treatment system which comprises an automatic recognition control system, an air filter, a pneumatic source, an air storage device and a plurality of atomization components. The pneumatic source, the air storage device and an air flow heating device are electrically connected with the automatic recognition control system, an output end of the air filter and an input end of the pneumatic source are communicated through a pipeline, an output end of the pneumatic source and an input end of the air storage device are communicated through a pipeline, an output end of the air storage device and an input end of the air flow heating device are communicated through a pipeline, flow adjusting valves are arranged between the air flow heating device and the atomization components, an output end of the air flow heating device and input ends of the atomization components are communicated through the flow adjusting valves. The system can be divided into multiple atomizing groups, thereby being convenient for standard management, capable of improving treatment environment, more comfortable to use, more effective in treatment, capable of simplifying operation process, low in atomizer fault rate, high in automation level and capable of effectively reducing workload of medical staff and saving resources.

The invention discloses a discriminant method for a gear shifting mode of a vehicle gear shifting handle. The discriminant method comprises the following steps of: obtaining whole vehicle information; obtaining current piratical position information of the handle, and determining a corresponding gear shifting mode according to the obtained current practical position information of the handle; utilizing the obtained whole vehicle information to discriminate whether operation of a driver is improper operation or not while detecting that the operation handle of the driver changes to other positions from a current position, and judging whether the gear shifting mode permits to change to other modes from the current mode or not; and discriminating intention of the driver according to the gear shifting mode.

The invention discloses a limiting method and system for the maximum lifting height of a forklift. The method comprises the following steps: introducing a lifting oil cylinder oil pressure value acquired by an oil pressure sensor in real time into an established first linear relationship model to obtain the current lifting cargo weight; introducing a bridge load of a back bridge acquired by a bridge load stress sensor in real time into an established second linear relationship model to obtain the current load central distance; introducing the current lifting cargo weight and the current load central distance into an established multiple regression model to obtain the maximum lifting height corresponding to the current lifting cargo weight and the current load central distance; and comparing the current lifting height acquired by a laser sensor in real time with the maximum lifting height and taking corresponding measures according to the comparison result. The affecting factors of themaximum lifting height comprise the lifting cargo weight and the load central distance. When the lifting cargo height exceeds the maximum lifting height, lifting is limited, so that overbearing operation and accidents can be prevented effectively.

The embodiment of the invention discloses a memory erasing method and device. The memory erasing method comprises the following steps: detecting a power-on signal of a memory; and controlling a plurality of memory blocks in the memory to carry out over-erase verification operation at the same time, so that the threshold voltages of all memory units in the memory are greater than zero voltage. According to the technical scheme provided by the embodiment of the invention, the problems of serious electric leakage of the storage unit and influence on normal use caused by abnormal power failure ofthe existing memory can be solved.

The invention discloses a safe positioning and adjustment device used for a concrete pouring vehicle hose and belongs to the field of safe positioning and adjustment. The safe positioning and adjustment device used for the concrete pouring vehicle hose comprises a fixing locking ring, a positioning operation ring, a hose lantern ring and an all-directional safety belt. According to the safe positioning and adjustment device, the positioning operation ring can be located around the hose through the fixing locking ring and a connecting rod, an operator controls a winding wheel to pull the hose lantern ring through a corresponding traction line, a corresponding movable pulley and a corresponding fixed pulley, the fixed pulley is fixed to the positioning operation ring, the hose lantern ring drives the hose to move, labor is saved during operation, the misoperation and misstep situations are effectively prevented, personal safety of the operator is ensured, accidents are effectively prevented from occurring to the operator through the all-directional safety belt and a safety rope mounted on the fixing locking ring, meanwhile, the body of the operator can be conveniently stabilized under the effects of a first magnet on an operation rod and a second magnet on the all-directional safety belt, and the accidents are further prevented.

The invention discloses a multifunctional full-automatic gas charging device of SF6 equipment and relates to the technical field of devices for charging compressed gas. The device comprises an SF6 gas cylinder and an electric control cabinet. The electric control cabinet comprises a cabinet body. The cabinet body is provided with a gas inlet and a gas outlet. A gas outlet of the SF6 gas cylinder is connected with the gas inlet of the cabinet body. The gas inlet of the cabinet body is connected with the gas outlet of the cabinet body through a pipe. An electric control panel is further arranged in the cabinet body. The electric control panel comprises a microprocessor, a gas cylinder side temperature and pressure intensity sending module, an equipment side temperature and pressure intensity sensing module, a proportional solenoid valve, an environmental information sensing module, a man-computer interaction module, a prompt module and a power module. The device can automatically complete gas charging of the SF6 equipment, the working efficiency is improved, gas charging is controllable, and precision is high.

The invention, which belongs to the technical field of unmanned automatic guided vehicles, provides a delay power-off control system and method for an unmanned automatic guided vehicle. The system comprises a power switch, a power-off delay relay, a lower computer controller and an upper computer. According to the method, after a power-off signal of the power switch is detected through an IO input, the lower computer controller feeds back the power-off signal, as a shutdown signal, of the power switch to the upper computer via a serial port communicated with the upper computer. When an operator manually turns off the power switch, the system power supply cannot be immediately cut off and will detect the power-off signal; the data are stored automatically by the software and the used computer system is turned off, so that a phenomenon that the system, file, or disk is damaged by the sudden power failure is prevented.

The invention discloses a subway screen door lock with an improved manual unlocking structure, which comprises a lock body which is vertically installed on the screen door and cooperates with the top box of the screen door to lock or unlock and a manual unlocking structure connected with the lock body. The shielded door includes two A door panels and B door panels that are opposite and connected as one, and the lock body is installed in the cavity formed by the A door panel and B door panel; the manual unlocking structure includes a support fixed on the inner wall of the B door panel Seat and the driving shaft, the wheel assembly and the rack assembly respectively installed on the support seat, the wheel assembly driven by the driving shaft is connected with the rack assembly installed at the bottom of the lock body; one end of the drive shaft is connected to the support On the seat and the other end of the drive shaft protrudes from the A door panel and is socketed with a handle assembly; the support seat is provided with a linear chute for assisting the up/down movement of the rack assembly. The invention has a simple structure, can prevent misoperation, and can respond quickly when unlocking is required.

The present invention discloses a vehicle charging and emergency power supply system based on an electric vehicle and a control method thereof. The vehicle charging and emergency power supply system comprises a power battery and a charging loop, and furthermore comprises the components of: a control unit, an emergency signal triggering module, a socket current detecting module, a battery electric-amount acquiring module, a discharging loop, a first relay, a second relay, a third relay and a fourth relay; wherein the emergency signal triggering module, the socket current detecting module, the battery electric-amount acquiring module, the discharging loop, the first relay, the second relay, the third relay and the fourth relay are respectively connected with the control unit. The control unit is furthermore connected with the charging loop. The power battery is connected with the input end of the discharging loop through the third relay. The output end of the discharging loop is connected with an electric vehicle socket through the first relay. The electric vehicle socket is connected with the input end of the charging loop through the second relay. The output end of the charging loop is connected with the power battery through the fourth relay. The control unit controls action of the first relay, the second relay, the third relay and the fourth relay and operation states of the charging loop and the discharging loop according to an acquired signal. The vehicle charging and emergency power supply system based on the electric vehicle and the control method thereof have functions of: widening use function of the electric vehicle, and improving applicability of the electric vehicle.

The invention provides a horizontal pneumatic pressing machine and a press-fit method for a cable assembly. The pressing machine adopts the structure that an electromagnetic valve is mounted below a table board; a pressure mechanism, a positioning mechanism, a PLC (Programmable Logic Controller) electrical control mechanism and two start switches are mounted on the table board; a sensing mechanism is mounted on the side of the positioning mechanism; a power supply is connected when the sensing mechanism induces a signal that a wrench is pulled downwards to a 90-degree position; and two start switches are pressed by two hands at the same time so as to automatically control the action of the pressure mechanism to carry out press-fit. According to the invention, a mechanical and sensing combined positioning way, a manual pre-positioning and self-control press-in combined mode, and modularized mechanism design are adopted, and the PLC electrical control mechanism is utilized to directly input pre-arranged parameters so as to realize the horizontal press-fit of the cable assembly. During the press-fit period, manual support is not required, working burden is reduced, and the safety is ensured. According to the invention, the automatic press-fit problem of the larger-diameter semi-flexible rigid cable assembly is solved, and both the press-fit efficiency and the press-fit quality are greatly improved.

The invention discloses a distributed system and a registration verification method thereof. The method includes the steps of generating registration cookie value with the highest version number by using effective secret key of the highest version in a secret key list after a registration system successfully verifying the account password of a client, and returning the registration cookie value to the client, the business system after receiving the business request, with the registration cookie value, of the client, obtaining the secret key version of the registration cookie value, inquiring corresponding secret key in the secret key list stored in the secret key version, decrypting the registration cookie value by using the secret key, and processing normal business requests after decryption result is verified to be valid. The invention further discloses a distributed system. The registration safety of a system can be ensured.

The invention discloses an operation structure and an operation method thereof, and aims at providing an operation structure and a simple operation method. The operation structure has the advantages that the structure is simple, the operation is convenient and the positioning of speed joints is accurate. The operation structure comprises a casing (1), a speed adjusting wheel (2), a direction adjusting wheel (3), an operation rod (4) and a microswitch (5), wherein the speed adjusting wheel (2) is provided with a flexible shaft fixing rod (21), and the direction adjusting wheel (3) is provided with a protrusion (31) matched with the microswitch (5). The method for installing the operation structure comprises the following steps that a, the operation rod (4) is set to a stop position, and then a motor stops rotating; b, the operation rod (4) is advanced to a forward position, and then the motor positively rotates to accelerate; and c, the operation rod (4) is backwards pulled to a reverse position, and then the motor reversely rotates to accelerate. The operation structure and the operation method are applied to the technical field of ship control.

The invention discloses a grounding mechanical locking device for the maintenance test of electric equipment, which comprises a grounding support fixed on a grounding flat iron of a substation, an insulating protective shell and a locking strip provided with a lock hole, and the insulating protective shell is covered on the grounding support The upper part is fixedly connected with the grounding support through the locking bar; the grounding support is provided with a ground threaded hole and a connecting groove for fixing the grounding wire connector; the insulating protective shell is provided with a lock, a locking bar channel and a grounding wire The lock is located at the opening end of the lock bar channel; the lock bar respectively passes through the connecting groove and the lock bar channel and connects the lock buckle and the lock hole correspondingly. Effectively prevent grounding wires from loosening and grounding devices from being misoperated, improve the accuracy of experimental data, and ensure personal and property safety.

The invention relates to a multipoint repetitive process step monitoring counter which is formed by combination of a set of mutually correlative counters, wherein, a first counter is taken as a predetermined counter for repetitive process step frequency; a second counter is taken as a reciprocal counter for the repetitive process step frequency and records residual repetitive process step frequency of a current operational objective during the procedure; a third counter is taken as an accumulative counter for total repetitive process step frequency and records total accumulative frequency for completing repetitive process steps; a fourth counter is taken as an accumulative counter for total qualified products and records total accumulative frequency for completing the qualified products of the operational objective. The invention relates to a special counter used for production and quality management, which is particularly suitable for monitoring multipoint repetitive process steps during the production process, and missing operations can be prevented through monitoring multipoint repetitive operation production process steps, thereby problems of material consumption calculation and missing operation monitoring in the multipoint repetitive process steps are solved.

The invention discloses a liposuction device for autologous fat transplantation of the human body and a usage method thereof and belongs to the field of medical surgical operation devices. A fat quantification device and a fat storage device are arranged in an incubator, and a temperature sensor I and a temperature sensor II are arranged in a liposuction end head and the incubator respectively. A pressure pump switch for starting a pressure pump or not through controlling, a pressure display screen and a pressure regulating knob are all arranged on the pressure pump. A thin water body impact tube is arranged on a delivery pipeline between the fat quantification device and the fat storage device. A primary filter layer and a secondary filter layer are sequentially arranged in the fat storage device from top to bottom. A more suitable storage environment can be provided for fat cells, and keeping of the activity of the fat cells is promoted. Misoperations produced by excessive and easily mistaken switching and the situation that normal operation cannot be performed in time can be prevented. The keeping of the survival rate of the fat cells is promoted. The accuracy of fat quantification can be ensured, and collection and reutilization of the fat cells and residual materials are promoted.

The invention discloses a calling system of a traction type building construction elevator. The system involves a calling device and a prompting device, wherein the calling device is in signal connection with the prompting device; the calling device is used for allowing operating personnel to input calling information and sending the calling information to the prompting device; and the prompting device is used for receiving the calling information transmitted by the calling device and prompting a driver. The calling system has the beneficial effects that the calling system is separately arranged and is used for calling a traction type building construction elevator lifting cage. Firstly, the calling device and the prompting device are in direct signal connection, the circuit arrangement isvery simple, and maintenance and inspection are facilitated. Secondly, the calling device of the scheme sends the information to the prompting device instead of directly controlling the lifting cageto move up and down, and the driver is prompted through the prompting device, so that the higher control right is given to the driver, and the driver can flexibly cope with the complex environment ofthe construction site.

The invention discloses a maximum goods lift limiting method and system for a forklift. The maximum goods lift limiting method for the forklift comprises the steps that the oil pressure value, acquired in real time, of a lifting oil cylinder is substituted into an established first linear relation model, so that the weight of goods lifted currently is obtained; the acting force, acquired in real time, applied to a portal by an oblique oil cylinder is substituted into an established second linear relation, so that the current load center distance is obtained; the current lifting height which isacquired in real time and the current load center distance which is acquired in real time are substituted into an established multiple regression model, so that the maximum lifted goods weight corresponding to the current lifting weight and the current load center distance are obtained; and the current lifted goods weight is compared with the maximum lifted goods weight, and corresponding actionis conducted according to the comparison result. The influence factors of the maximum lifted goods weight include the lifting height and the load center distance, lifting is limited when the lifted goods weight exceeds the maximum lifted goods weight, and thus overload operation and accidents can be effectively prevented.

The invention relates to a method for maintaining USS, which comprises that: BSF receives the maintain request from NAF to maintain one USS; judges said legality of NAF; BSF checks the contents of maintained USS and finds out the USS content which can be operated by NAF, and operates the USS content; BSF sends operated USS to HSS, to store the USS of GUSS, and provide the system for maintaining USS. With said invention, NAF can correctly modify the USS of GUSS, to reduce HSS maintain load and support enough freedom to the NAF.

The invention provides a clamping device for a slice carrying table of an ultrasonic scanning microscope, which comprises a base and a slice carrying table or a standard feed box. A fixed carrier structure and a movable carrier structure are fixed at the two ends of the base respectively, a supporting plane of slice carrying table and a supporting plane of standard feed box are arranged on the carriers of the two structures respectively, and the slice carrying table or the standard feed box is supported and clamped between the two structures. The movable carrier structure is provided with a guide device, a reset device and a limiting device. The right carrier has a manual clamp motion path by virtue of the guide device, the reset device and the limiting device. Left and right upright columns working in a water medium and the left and the right carriers are all made of PMMA, so as to eliminate the risk of rust formation of parts and connecting bolts and avoid operation failure caused by rust corrosion of the device. The clamping device has a split structure, and the slice carrying table can be put in or taken out and clamped and fixed at any time and can be freely replaced by the standard feed box. The clamping device is easy to operate and provides convenience for leveling the slice carrying table under the ultrasonic scanning microscope.