48results about How to "Valid trigger" patented technology

A wheel assembly has a swiveling shaft, a support member movably assembled with the swiveling shaft, an arresting member and wheels. The swiveling shaft includes a swiveling sleeve, a pressing element disposed on the swiveling sleeve, and a first gear bracket and a second gear bracket. The support member includes a rack with an opening, and a third gear bracket snapped in the opening, The arresting member is mounted on the rack. A first resilient element is provided between the arresting member and the rack. A second resilient element is provided between the arresting member and the third gear bracket. The wheels respectively pivot to the rack, and are limited at opposite sides of the arresting member. The pressing element limits rotation of the wheels, preventing deformation of the wheels thereby effectively stopping the wheels and lengthening lives of the wheels.

A wheel assembly has a swiveling shaft, a support member movably assembled with the swiveling shaft, an arresting member and wheels. The swiveling shaft includes a swiveling sleeve, a pressing element disposed on the swiveling sleeve, and a first gear bracket and a second gear bracket. The support member includes a rack with an opening, and a third gear bracket snapped in the opening, The arresting member is mounted on the rack. A first resilient element is provided between the arresting member and the rack. A second resilient element is provided between the arresting member and the third gear bracket. The wheels respectively pivot to the rack, and are limited at opposite sides of the arresting member. The pressing element limits rotation of the wheels, preventing deformation of the wheels thereby effectively stopping the wheels and lengthening lives of the wheels.

The invention discloses a flatness detection device based on civil engineering and relates to the technical field of civil engineering. A connecting box is fixedly connected to one side of a box body.Vertical frames are fixedly connected between the top and the bottom of the inner wall of the box body. The two vertical frames are arranged and located on the left side and the right side of the inner wall of the box body. A first electric telescopic piece is fixedly connected to the top and the bottom of one side of the inner wall of each vertical frame. By the adoption of the flatness detection device based on civil engineering, the device can be effectively triggered and stopped through a touch switch when an unstable condition happens, and stability is guaranteed; through mutual cooperation, whether flatness is reached or not can be known in time, observation is conducted, the accuracy in the measurement process is guaranteed, and work efficiency is improved; and the angles of pressswitch pieces correspond to those of squeezing blocks, the overall balance of the device can be guaranteed in the uphill and downhill processes, an inclination state is avoided, and the stability in the measurement process is guaranteed.

Disclosed are a method for interacting with video terminal equipment, an external control platform and a remote control. The method comprises the following steps: an operation area which can receive user operation instructions is set on the remote control; the operation instructions contain a location operation instruction and a selecting operation instruction; when an image frame received from far-end equipment contains contents which requires a user to select, a corresponding interactive image frame containing a plurality of target controls which respectively represent different selecting contents is generated according to the image frame, and a display content of a target control and operation during selection are set according to the selected content represented by each target control; the image frame and its corresponding interactive image frame are displayed in an overlapping manner on a screen; and after a first control signal for representing the operation instructions is received from the remote control, the target control selected by the user is determined according to the first control signal, and operation during selection of the target control is carried out. According to the invention, interaction between users and present video terminal equipment can be conveniently realized.

The invention provides a novel action mechanism of an electrical leakage protection module. The novel action mechanism comprises a base, a traction piece and a tripping actuating piece. The novel action mechanism also comprises a reset piece which can move on the base under the effect of an external force and is provided with a first matching portion and a first elastic element, wherein the first matching portion is provided with an acceleration tripping piece; the tripping actuating piece is provided with a second push rod; the second push rod is provided with a second matching portion; when no electric leakage occurs, the first matching portion is matched with the second matching portion such that the tripping actuating piece is immobile, and the first elastic element is in an energy storage state; when electric leakage occurs, the tripping actuating piece drives the second push rod to rotate under the effect of the traction piece, such that the first matching portion can be separated from the second matching portion in a sliding manner, at this moment, the first elastic element releases energy so as to apply an external force to the reset piece such that the reset piece can move on the base; the reset piece drives the acceleration tripping piece to move and force the acceleration tripping piece to abut against the second push rod such that a rotation actuating force can be to applied to the second push rod; and the direction of the rotation actuating force is basically the same as the direction of the rotation of the second push rod caused by the effect of the traction piece.

The invention relates to lower-than-lower-limit reverse control time base circuit. All functions of a 555 time base circuit are completely compatible, and new functions are expanded. The technical problem that a conventional master control circuit for higher-than-upper-limit control and lower-than-lower-limit control and a timing circuit are out of control due to failures and cannot timely cut power supplied to a load off to cause potential safety hazards. The technical scheme is that: a lower limit reference circuit, a comparison circuit and a triggering protection circuit are arranged; when a sensing circuit abnormally fails, the inversion of a post-stage circuit is preferably triggered, and a lower-than-lower-limit reverse control protection function is realized to forcibly cut the power supplied to the load off and reliably prevent the failures from causing uncontrollability. When applied to temperature, pressure, water level and timing control circuits, the lower-than-lower-limit reverse control time base circuit can improve the safety performance and avoid serious accidents such as fire when in use. Therefore, the lower-than-lower-limit reverse control time base circuit has high practical value and higher cost performance, and is more widely applied in the fields of electronic application such as small home appliance and simple measurement, timing, control, safety protection and the like.

The invention relates to a capping bottom safety control circuit and a safety temperature-control time-control electric appliance thereof. The technical scheme is that an out-of-limit conversion differential circuit is in parallel connected with two VH ends and two VL ends of a capping protection circuit, the out-of-limit conversion differential circuit is in parallel connected with the two input ends VI of a dip safety controller or an amplifier circuit, and the bottom limits of the out-of-limit conversion differential circuit and the dip safety controller of the amplifier circuit are set by a bottom circuit; the differential touch end of the out-of-limit conversion differential circuit is connected with an output end Vdo and a end DAR of the bottom safety controller or amplifier circuit, or the output end VQ of a gate circuit is connected with the end VZ of a Schmidt trigger circuit, and the output ends VTO and VFO of the Schmidt trigger circuit are externally connected with an execution circuit. The capping bottom safety control circuit provided by the invention can be applied to temperature, pressure, water level, timing and a measurement and control circuit, therefore the safety performance can be improved, the out of control accident can be prevented and the application is wide.

In order to form a transfer assembly with a simple and cost-effective structure for coupling a protection device triggering mechanism to a drive of a switching device with delaying means for delayed triggering of the switching process for the switching device when the protection device has triggered, it is proposed that the delaying means has a first lever (2), which is coupled to the protection device triggering mechanism and locks a weight element (4), which can be moved vertically between a first and a second position, in the first position via a latch arrangement (5, 6) and releases it when the protection device triggers, and a second lever (3), which is provided in order to actuate the drive and which can be actuated by the weight element (4); the weight element (4) can be transferred into its second position by means of the weight force thereof and a force exerted onto the weight element (4) by a first spring (8).

The invention discloses an anti-backflow type novel check valve, and belongs to the technical field of check valves. According to the anti-backflow type novel check valve, the backflow phenomenon can be sensed through an anti-backflow ball arranged on the side wall of a valve element, in a positive flow state, the anti-backflow ball is triggered to move outwards by extruding a triggering film, a sensing mode is closed in cooperation with a backflow plate, in the closed state, the triggering film recovers the shape, the anti-backflow ball is separated from the backflow plate and recovers the sensing mode, when the backflow phenomenon occurs, moisture is guided and conveyed into the anti-backflow ball, the moisture is utilized in turn based on the physical dissolution action, then the cooling phenomenon is triggered in the anti-backflow ball, and back flowing water is forced to be frozen at the valve element through rapid cooling, so that sealing is formed, the water is prevented from further flowing back, the sealing performance of the valve element in the closed state is improved, and the backflow phenomenon is not prone to occurring.

The invention discloses a leakage reminding barrel for a natural gas pipeline joint, and belongs to the technical field of natural gas. Through the arrangement of an outer sleeve and related components, when the pipeline joint leaks, leaked natural gas can enable an elastic film to protrude upwards, so that a switch button is automatically triggered to turn on a power supply, an alarm device can be started to give an alarm, related workers can know the occurrence of gas leakage in time, thereby eliminating potential safety hazards and greatly improving the safety; meanwhile, a conductive rod can be electrified to harden a state changed filling body and shape an elastic tubular bag, so that the sealing effect of the elastic tubular bag can be greatly improved, and the amount of natural gas leaking to the outside of the outer sleeve is remarkably reduced; by arranging a shading tube, the elastic film protrudes upwards, meanwhile, a part of the light-reflecting reminding rod can be automatically exposed out of a shading tube, secondary reminding is given out, the reminding function is enhanced, and practicability is greatly improved.

The invention provides a stepping attracting static locking micromechanical inertia switch. Array fixed electrodes are distributed in an array manner and are formed by layout line connection, the array fixed electrodes are insulated from an attracting electrode through air gaps and are arranged on an insulating substrate, a flexible connection multi-plane movable electrode is connected with a conjoined serpentine spring and forms a hanging movable structure by means of a spring fixed bearer, and a reverse spacing and blocking structure is hung above the flexible connection multi-plane movable electrode. According to the invention, by arranging the array-type layout in a plane, the contact possibility of the fixed electrodes and the flexible connection multi-plane movable electrode is greatly increased; by means of the static attracting effect of the attracting electrode and the flexible connection multi-plane movable electrode, the contact time between the fixed electrodes and the flexible connection multi-plane movable electrode can be prolonged at will, and the contact performance is improved; large-amplitude transformation of the flexible connection multi-plane movable electrode in the non-sensitive direction can be effectively suppressed by means of the reverse spacing and blocking structure, and the device stability is improved.

The invention belongs to the technical field of impulse power and particularly relates to an electromagnetic induction type self-triggering LTD. The LTD is composed of three parts of a triggering induction cavity module, an ordinary induction cavity module and a self-triggering induction cavity module. The three parts are connected in series through a secondary center convergence bar successively, the triggering induction cavity module forms several front stages of a channel of LTDs, the self-triggering induction cavity module forms several rear stages of the channel of the LTDs, and during working, only first stage induction cavity modules of the induction cavity module which are triggered synchronously are needed to be triggered, the whole channel of the LTDs can be triggered. According to the drive source, extra signals needed to be triggered are few, and the synchronization problem of extra signal triggering is not needed to be considered; the system reliability is high; extra triggering units are not needed, the size is small, the structure is compact, and the cost is low; and good expandability is provided, the number of the induction cavity module can be freely adjusted and no extra triggering number is needed to be added, and the LTD is applicable to large-scale LTD devices.

The invention relates to an SQL (Structured Query Language) injection vulnerability automatic detection platform and method based on self-adaptive random test. The detection platform runs on a Ubuntu 14.10 operating system. According to the detection platform, test cases are initialized; feature vectors of the test cases are analyzed and extracted; the test cases are subjected to vectorization representation; the test cases are sent to a test target by using an HTTP (Hyper Text Transport Protocol) request; a response of the test target is recorded; according to the response, whether an SQL injection vulnerability is found is determined; distances between the test cases are calculated; test cases for carrying out test next time are adaptively selected. The detection platform creatively proposes to use a self-adaptive random test method, and supports to rapidly and automatically detect the target in a customized mode; on the basis of arranging the rich test cases in the platform, users can add test cases according to use demands of the users, and the platform can automatically complete initialization, variation, feature extraction and calculation on the test cases, so that the optimal test effect is achieved.

The invention relates to the field of life health technology, and discloses a portable split type first-aid calling device. The device comprises a miniature housing and a household instrument housing.The left side of the miniature housing is fixedly connected with a patch. The left side of the patch is fixedly connected with a physiotherapy stone. The left side of the inner wall of the miniaturehousing is fixedly connected with a connecting block. According to the portable slit type first-aid calling device, through arranging a miniature split type device, the miniature housing facilitates carrying and satisfies a requirement for health insurance at home or in outgoing of a user. The patch can be adhered to the surface of the skin for repeated use, thereby facilitating remote asking-for-help by the user in any condition. A buffer can effectively attract attraction of surrounding personnel, thereby improving possibility of being saved by other persons. A lamp tube facilitates adhesionof the miniature housing to an affected part. The user can conveniently operate a first-aid button. Furthermore common conditions of the user can be indicated to the surrounding personnel, thereby greatly improving life health insurance of empty nests.

The invention relates to an SSD mapping table protection mechanism verification method and device, computer equipment and a storage medium. The method comprises the following steps: customizing a specific command 1 and a specific command 2; writing specific data into the SSD; reading the data in the SSD, and verifying the correct writing of the data; sending a specific command 1 to the SSD, setting a mapping table entry for the LPA x, and injecting 1-bit flipping; initiating a read operation on the user data of the LPA x; the SSD performs corresponding table items of an internal access mappingtable LPA x and performs error detection; returning correct user data to the host; and sending a specific command 2 to the SSD, and obtaining a table item count of an error occurring in the mapping table for the first time and a table item count of successful error correction. According to the method, various types of errors can be effectively triggered, the processing capacity of the SSD for different types of errors is verified, the reliability of an SSD scheme is effectively guaranteed, and the correctness of user data is guaranteed.

A low-noise load driving circuit structure aims to solve the technical problems that existing load driving circuits have power mismatch, fixed phase cut, dimming flicker, poor stability, and low immunity to electromagnetic interference. The features of the low-noise load driving circuit structure include a switch circuit connecting a first power source; a rectifier bridge, wherein the input port of the rectifier bridge is connected to the switch circuit and the first power source; an EMI filter circuit, wherein the input end of the EMI filter circuit is connected to the output end of the rectifier bridge; a dynamic adjustment circuit, wherein the input end of the dynamic adjustment circuit is connected to the output end of the EMI filter circuit; a control unit connecting the dynamic adjustment circuit; a voltage compensation circuit which is connected to the control unit and includes a bleeder circuit and a bias circuit; an output circuit connecting the output end of the rectifier bridge and the output end of the dynamic adjustment circuit; and an output filtering inductor connecting the output circuit. The low-noise load driving circuit structure is used to drive the load.

The invention relates to an electric curtain control device which comprises a shell, a driving wheel, a motor, an electric control assembly, a front side driven wheel assembly and a rear side driven wheel assembly are arranged on the shell, a mounting and dismounting button is arranged on the shell, and the mounting and dismounting button drives wheel shafts of the driven wheel assemblies on the two sides to be switched between a working position and a mounting and dismounting position through a transmission mechanism; a switch button is further installed on the shell and used for being pressed to trigger the electric control assembly, and then the electric control assembly is controlled to supply power to the motor. According to the electric curtain control device provided by the invention, the switch button and the assembly and disassembly button are separately arranged, the switch button is used for controlling on and off, the assembly and disassembly button drives the rotating shaft to rotate through the transmission mechanism so as to realize assembly and disassembly of the electric curtain control device, and the switch button and the assembly and disassembly button are separately arranged and do not interfere with each other; the problems of poor product stability and poor user experience caused by function diversification of control buttons in the prior art can be effectively avoided.

The invention relates to the technical field of high-altitude operation, and provides a lifting device. The lifting device comprises a lift car, a first limiting assembly and a second limiting assembly. The first limiting assembly is located above the lift car and comprises a top plate and a first control switch part, the first control switch part is located between the top plate and the lift car, and the top plate is suitable for moving relative to the first control switch part to trigger the first control switch part. The second limiting assembly is located below the lift car and comprises a third control switch part, and the third control switch part is suitable for being triggered by external force in the downward movement process of the lift car. According to the lifting device, control switch pieces do not need to be installed at a plurality of positions above the lift car correspondingly, the top plate is arranged above the lift car, and the first control switch part is arranged between the upper part of the lift car and the top plate so that the control requirement on the lifting device can be met. In addition, the number of the electric control boxes which are independently arranged in the lift car and correspond to the control switch parts is decreased, and therefore the structure of the lifting device is simplified, and installation and maintenance are convenient.

The invention discloses a control pulse train generation method and device for thyristor control, and the method comprises the steps: S1, receiving a control parameter for controlling a target thyristor, generating a plurality of narrow pulses with the pulse widths smaller than a specified width according to the received control parameter, and obtaining and outputting a narrow pulse train; S2, performing interference pulse filtering processing on the narrow pulse train obtained in the step S1, and outputting the narrow pulse train obtained after filtering processing; S3, controlling narrow pulses in the narrow pulse train output in the step S2 after filtering treatment to be regenerated into pulses with required widths in sequence to obtain a final control pulse train, and outputting the final control pulse train to the target thyristor. The device comprises a narrow pulse group generation module, an interference pulse filtering module and a pulse group regeneration module. The methodhas the advantages of being simple in implementation method, low in cost, high in generation precision, flexible to implement, capable of ensuring thyristor triggering performance and the like.

The invention relates to a capping bottom safety control circuit and a safety temperature-control time-control electric appliance thereof. The technical scheme is that an out-of-limit conversion differential circuit is in parallel connected with two VH ends and two VL ends of a capping protection circuit, the out-of-limit conversion differential circuit is in parallel connected with the two input ends VI of a dip safety controller or an amplifier circuit, and the bottom limits of the out-of-limit conversion differential circuit and the dip safety controller of the amplifier circuit are set by a bottom circuit; the differential touch end of the out-of-limit conversion differential circuit is connected with an output end Vdo and a end DAR of the bottom safety controller or amplifier circuit, or the output end VQ of a gate circuit is connected with the end VZ of a Schmidt trigger circuit, and the output ends VTO and VFO of the Schmidt trigger circuit are externally connected with an execution circuit. The capping bottom safety control circuit provided by the invention can be applied to temperature, pressure, water level, timing and a measurement and control circuit, therefore the safety performance can be improved, the out of control accident can be prevented and the application is wide.

The invention discloses a device for water quality detection and waste separation along with water level change. The device comprises a detection device, a water inlet cavity with a leftward opening is formed in the detection device, a telescopic cavity is formed in the bottom wall of the water inlet cavity in a communicating mode, and an abutting cavity is formed in the bottom wall of the telescopic cavity in a communicating mode; the right end wall of the abutting cavity is communicated with a pushing cavity. The device is mainly applied to the process of detecting the water quality through water level change in rivers, the purpose of enabling the detection result to be more accurate can be achieved through the filtering effect of a filtering net in the detection process, a conduction mechanism is used for effectively triggering a reset mechanism, when the water amount in the water storage cavity meets the requirement, the telescopic plate can be moved in time through the reset mechanism, then the water inlet cavity is closed, the detection result is more accurate, water flows to the water bottom through a water inlet wheel, and then the purpose of garbage recycling and separating is achieved.

The invention discloses an anti-error-touch control panel for an elevator. The anti-error-touch control panel comprises a panel body, an opening button, a closing button, an alarm button and a plurality of floor buttons. A containing cavity is formed in the panel body. A transmission assembly comprises a first transmission wheel, a second transmission wheel, a fixing wheel and a triggering plate. The cavity wall of the containing cavity is connected with the triggering plate through an elastic piece. The elastic piece acts on the triggering plate so that the triggering plate can be separated from the alarm button. A movable rod is eccentrically arranged in the region, close to the triggering plate, of the fixing wheel. One end of the movable rod is hinged to the fixing wheel. The other end of the movable rod is provided with a strip-shaped opening penetrating the end face of the movable rod. The end face, close to the fixing wheel, of the second transmission wheel is provided with a positioning column penetrating the strip-shaped opening. The positioning column can move in the strip-shaped opening. By the adoption of the anti-error-touch control panel, the drive manner of the alarm button is changed and is obviously different from the triggering manner of the opening button, the closing button and the floor buttons, so that probability that passengers accidentally touch the alarm button can be reduced greatly.

The invention discloses a central server heat dissipation device based on big data. The central server heat dissipation device comprises a heat sink, a fixed frame, an electric wire, a terminal, sponge mat layers and a working chamber, the heat sink and the terminal are respectively of a cuboid structure, the fixed frame is welded at the upper end of the heat sink, a wire socket used for being connected with the electric wire is formed in the back of the heat sink, one working chamber is formed between the two sponge mat layers, a signal port, signal contacts, a server, an inner limit circle,an auxiliary driving mechanism and an outer fixed ring are respectively arranged in the working chamber, and the signal contacts are respectively arranged at the two sides of the signal port. The central server heat dissipation device disclosed by the invention has the advantages that the terminal jointly cooperates with the signal port, the signal contacts and a server, the server forms three signals by utilizing the signal port and the two signal contacts, two signal circuits are arranged in the server and used for being butted with the signal contacts, the server is started by utilizing thetwo signal contacts when the signal port is damaged, in short circuit or paralyzed, and motor burnout caused by a fact that a motor continuously operates while heat dissipation is stopped can be avoided.

The invention discloses an automatic fuzzy testing method and device for a management protocol of a physical router. The fuzzy testing technology of a physical router takes the default URL of the management interface of the target router as an input, and recursively traverses all WEB pages through a crawler to obtain request data; for the original request data Perform format parsing and attribute marking to obtain seeds, and then mutate; send the mutated seeds to the target router as network communication data, monitor the abnormality of the target router, and realize fuzz testing; when the target router enters the unresponsive state, By controlling the automatic restart of the target router, the fuzzing test continues until completion. The invention utilizes the way of combining software and hardware and the characteristics of the management protocol in the router to improve the effectiveness of fuzzy testing on the router.

The invention discloses a drive control method for a multiple rectification circuit, which is applied to an FPGA chip and includes: receiving 6 input pulses; determining 12 or 24 output pulses according to the 6 input pulses, and passing the determined The output pulses drive and control the multiple rectification circuit; wherein, within one cycle, each output pulse includes k consecutive short pulses, k is a positive integer and is at least 2. By applying the method provided by the invention, the thyristors in the multiple rectification circuit can be triggered more effectively. The invention also discloses an FPGA chip and a drive control system for multiple rectification circuits thereof, which have corresponding technical effects.

The invention provides a vertical lifting and aligning device, which comprises a moving unit, an upper fixing unit, a lower fixing unit and a controller. The moving unit comprises a moving piece capable of moving up and down synchronously along vertical lifting equipment; a first optoelectronic switch and a second optoelectronic switch are arranged on the moving piece, and are connected with the controller; the upper fixing unit is provided with a first interaction piece and a second interaction piece; a trigger position of the first optoelectronic switch and the first interaction piece is higher than a trigger position of the second optoelectronic switch and the second interaction piece; the lower fixing unit and the upper fixing unit are symmetrically arranged up and down; and when the moving unit operates from bottom to top, the moving unit interacts with the upper fixing unit, firstly slows down and then stops so as to realize upper aligning operation, and when the moving unit operates from top to bottom, the moving unit interacts with the lower fixing unit, firstly slows down and then stops so as to realize lower aligning operation, so that the accuracy in aligning and the safety and the reliability of operation are realized.

The invention discloses a passenger flow statistical method, device, system and equipment, and a storage medium. The method comprises the following steps: determining a detection area for detecting passenger flow according to a signal detection range formed by superposing a pyroelectric sensor, a Fresnel lens and a shell with pores in a pyroelectric acquisition module; when the detection area is triggered, acquiring a response signal of infrared radiation change in the detection area detected by the pyroelectric acquisition module; transmitting the coded response signal to a data receiving terminal matched with a Bluetooth module through the Bluetooth module connected with the pyroelectric acquisition module; and driving the data receiving terminal to upload the coded response signal to the server for decoding so as to count the passenger flow passing through the detection area according to a decoding result. According to the method, multiple persons triggering the detection area within the same time can be effectively distinguished and counted, the statistical accuracy of the passenger flow volume is improved, and meanwhile, the problem that a correlation type infrared sensor cannot be used in a wireless scene can be solved.

The invention belongs to the technical field of impulse power and particularly relates to an electromagnetic induction type self-triggering LTD. The LTD is composed of three parts of a triggering induction cavity module, an ordinary induction cavity module and a self-triggering induction cavity module. The three parts are connected in series through a secondary center convergence bar successively, the triggering induction cavity module forms several front stages of a channel of LTDs, the self-triggering induction cavity module forms several rear stages of the channel of the LTDs, and during working, only first stage induction cavity modules of the induction cavity module which are triggered synchronously are needed to be triggered, the whole channel of the LTDs can be triggered. According to the drive source, extra signals needed to be triggered are few, and the synchronization problem of extra signal triggering is not needed to be considered; the system reliability is high; extra triggering units are not needed, the size is small, the structure is compact, and the cost is low; and good expandability is provided, the number of the induction cavity module can be freely adjusted and no extra triggering number is needed to be added, and the LTD is applicable to large-scale LTD devices.