91results about How to "Realize switching function" patented technology

The invention discloses a method for achieving multi-frequency coverage of a wireless sensor network based on time division multiplexing, wherein the method employs two communication methods, namely, time division multiplexing and frequency division multiplexing, so that the method makes up for disadvantages that the traditional wireless sensor network has low communication rate, small node number, low data transmission reliability and the like. The invention designs a wireless sensor network receiving node with two frequency communication, wherein one frequency is used for signaling communication and the other frequency is used for data communication; the wireless sensor node builds connection with the signaling frequency of the wireless sensor network receiving node and then distributes time slot, and performs frequency hopping to a designated data frequency to perform wireless communication of the time division multiplexing. The wireless sensor network receiving node finally sends data to a remote server. The wireless sensor network has the advantages of high reliability, short adding time, fast network rate and a large number of received nodes, so that the invention is suitable for the wireless sensor network with high requirement for data transmission reliability or transmission rate.

The invention relates to an emergency power supply switching circuit which comprises a direct current input circuit, an alternating current input circuit and a signal switching circuit, wherein the input end of the direct current input circuit is connected with a direct current power supply and used for receiving direct current power supply input signals; the input end of the alternating current input circuit is connected with an alternating current power supply and used for receiving alternating current power supply input signals; and the signal switching circuit is connected between the direct current input circuit and the alternating current input circuit to realize the automatic switching of the direct current power supply input signals and the alternating current power supply input signals. The invention also correspondingly provides an LED drive circuit with an emergency power supply switching function. The LED drive circuit uses the alternating current power supply as a preferred power supply, uses the direct current power supply as a spare power supply, and realizes the switching function of the alternating current power supply and the direct current power supply, and enables an ordinary LED lamp to have the capability of emergency lighting.

The invention discloses a multi-channel optical fiber video switching system based on an FC-AV protocol. The video switching system comprises a video-to-optical-fiber module, an optical fiber switching module and an optical-fiber-to-video module, the video-to-optical-fiber module is connected with the optical fiber switching module through an optical fiber, the optical fiber switching module is connected with the optical-fiber-to-video module through an optical fiber, the optical-fiber-to-video module is connected with a display control terminal through a video cable; the system solves the problem of remote transmission of multi-channel multi-protocol high-speed video signals in the video display field, and greatly prolongs the high-speed video lossless transmission distance; and the system achieves a fast real-time switching function of the optical fiber video on different displays, the video switching time is better than 200 ms, and high bandwidth, high reliability, low delay and long-distance lossless transmission of the video are achieved. The system is of great significance for the next generation of multi-purpose multi-terminal display devices to realize local screen remote transmission and display and the switching and sharing of display information of multi-location display terminals of large-scale facilities.

The invention provides a switching method between cells in the base station. When the HSDPA service terminal is performed with cell switching, the internal queue buffer data in the source cell MAC-hs entity and the correlative information are transferred into the target cell MAC-hs entity. In addition, the invention also provides a data transmission device during the switching process between cells in the base station, the device comprises a first storage unit and a second storage unit, which are respectively arranged in the source cell MAC-hs entity and the target cell MAC-hs entity, and used for the storage of the downlink data of the HSDPA service terminal; a transmission unit, which is used for the effective time point appointed by the base station, and queue data buffered by the first storage unit is transferred and stored in the corresponding queue of the second storage unit. The invention can effectively prevent the buffer data loss during the switching process, and control the data transmission between the RNC and the NodeB.

The invention discloses a speech switching method, a terminal, a server and a system. The method comprises the following steps: connecting to a Wifi network; when a dialing operation is detected, sending a test speech to a mean opinion score (MOS) evaluation system through the Wifi network; after the MOS evaluation system performs MOS evaluation on the test speech, obtaining an evaluation result; and determining whether a speech call is made by use of the Wifi network or a GSM network according to the evaluation result.

The invention discloses a stepping diaphragm structure provided with a dimmer conversion device. The device includes a pedestal and a cover plate arranged on the pedestal. The pedestal is provided with a pedestal through hole. The cover plate is provided with a cover plate through hole. A diaphragm assembly is arranged between the pedestal and the cover plate. A first drive assembly is arranged between the pedestal and the cover plate. The cover plate is provided with a fixed base. The fixed base is provided with a fixed base through hole. A cavity is formed through connection of the fixed base and the cover plate. A second rotary plate is arranged in the cavity. The second rotary plate is provided with at least three windows. The windows are provided with dimmers. When the second rotary plate rotates, one of the dimmers aligns with the fixed base through hole and the pedestal through hole so as to allow light to pass. The fixed base is also provided with a second drive assembly. Whenthe first rotary plate rotates, blades are driven to act, so that the size of the diaphragm is controlled and product quality is improved. The second rotary plate is provided with at least three dimmers having different light transmission performance, the switching of the dimmers can be realized through driving the second rotary plate to rotate by the second drive device, so that operation convenience is achieved.

The invention relates to a developing box, and belongs to the technical field of electrophotographic imaging and printing. The developing box comprises a box body, a developing unit and a driving switching unit, wherein the driving switching unit comprises a resetting piece, a connection control piece, a developing rotating force receiving piece and a transmission gear for transmitting rotating force to a developing roller. By switching of the matching between all components of the driving switching unit and a developing end cover as well as a driving end cover, the developing rotating force receiving piece is connected with a driving output component of a developing device on a host unit in the developing period and disconnected from the driving output component in the non-developing period, so that a function of switching driving of the developing roller is realized. The driving switching unit in the developing box is simple in structure and convenient for manufacturing and assembling, so that the manufacturing cost of the developing box can be reduced.

The invention relates to a wheel-legged robot and an intelligent wheel-legged switching method. The robot detects and calculates front, rear, left and right inclination of the condition of a road to be travelled on, and compares with the inclination with a corresponding set inclination range to judge whether travelling modes need to be switched or not. If the travelling modes need to be switched, a steering engine controller is used for controlling steering engines to act and switch over wheels and legs. If the travelling modes do not need to be switched, the robot continues travelling in the previous travelling mode. High-precision hand-eye matching of an operator is omitted, operations can be performed without real-time tracking, the robot can automatically switch over the wheels and the legs and smoothly reach a set target if the road condition is changed in the travelling process, and intelligence of the robot is improved.

The invention discloses an industrial-grade optical transmission system, belonging to the field of power communication. In the industrial-grade optical transmission system, optical transmission equipment also comprises a main interface module and a standby interface module facing to optical terminal equipment, wherein the main interface module is a wired interface module, and the standby interface module is a wireless interface module; the wired interface module is used for wired connection with optical network equipment; the wireless interface module is used for wireless connection with a main station side; and when a main interface fails in data transmission, a standby interface is started by a configuration with external network management. According to the industrial-grade optical transmission system, the synchronization of networks is realized, convergence, transparent transmission and exchange are carried out on different data, the safety of information transmission is enhanced, the main-standby switching function of an optical network and a wireless network is realized, the transmission of important data is ensured and the reliability of the networks is improved.

The method for switching services includes steps: step S102, in procedure of voice call, when receiving signal tone for switching services from equipment at called user, the mobile station at the called party carries out service negotiation and hard switching through the base station controller at the called party to establish connection to network intercommunication function unit (NIFU) at the called party; step S106, through receiving in-band message, the base station controller at calling party starts switching services, establishes connection between the calling party and NIFU at the calling party so as to complete switching services. The invention also discloses the system for switching services. The invention also discloses another method and system for switching services. Without changing habit user uses, the invention implements function for switching IWF services between voice service and facsimile service so as to be convenient for user to do operations.

The invention provides an accident security power supply circuit and a switch method thereof, and belongs to the technical field of circuit design. In the accident security power supply circuit, a sixth switch is an outlet switch of a diesel power generation set; a second switch and a third switch are work power supply feeder switches of security PC A section and B section respectively, and working power supplies are from work PC A section and B section respectively; a first switch and a fourth switch are standby power supply feeder switches of the security PC B section and A section respectively, and standby power supplies are from the work PC A section and B section respectively; a fifth switch and a seventh switch are power supply wire inlet switches of the diesel power generation set of the security PC A section and B section respectively; en eighth switch and a ninth switch are work and standby power supply wire inlet switching switches of the security PC A section and B section respectively; and a tenth switch and an eleventh switch are work, standby and diesel power generation set power supply wire inlet switching switches of the security PC A section and B section respectively. The accident security power supply circuit and the switch method thereof have the advantages of easy wiring and highly-reliable switching and the like.

The invention relates to the field of wireless communication and discloses a method for switching an access terminal among signaling wireless network controllers, thus being capable of realizing the switch function in the SRNC under the condition of using only one SRNC special route. When in switch in the SRNC, various eBS modify a route mapping relation table in an activation set of an AT to be switched, the SRNC special route of the AT is modified to an ANID of the target SRNC from the corresponding ANID and then the AT passes through a signaling route transmitted by the SRNC special route to the target SRNC according to the route mapping relation table after the modification. When the AT receives a UAT1 message which is re-assigned by the AT of the target SRNC, the route mapping relation table is modified, and the SRNC special router of the AT is modified to the ANID of the SRNC by the corresponding ANID. The method can issue the switch in the SRNC by the service eBS of the AT or the source SRNC.

The invention provides a distributed type fiber laser ultrasonic transducer based on tilted grating cladding mode coupling intensity and wavelength control. A laser seed light source, a high-power light amplifier, a high-power light isolator and a tilted grating string are sequentially connected to form the ultrasonic transducer. The tilted grating string comprises multiple grating units of different phantom mode working wavelengths, and each unit comprises multiple tilted gratings of the same working wavelength and different phantom mode coupling intensities. Part of a section of fiber claddings, close to the gratings, in an optical fiber link in front of each tilted grating are removed and filled with absorption materials, so that energy of phantom modes in the fiber claddings is released and absorbed, and the thermal elastic expansion effect is used for stimulating ultrasonic sound. The distributed type fiber laser ultrasonic transducer based on tilted grating cladding mode coupling intensity and wavelength control has the advantages of being simple in structure, convenient to operate, high in distributed type capacity and anti-electromagnetic interference, and the like, can be widely applied in the fields of medical diagnosis, ultrasonic testing, structural health monitoring and the like, and has very high application prospects.

The invention relates to a structure of a high-voltage electric control circuit for an electric automobile. The structure comprises a battery, a pre-charging circuit, a main relay, a soft turn-off circuit and a full turn-off circuit, wherein the main relay is a 12V common industrial relay; one end of the main relay is connected with the battery; the other end of the main relay is connected with a motor controller through the full turn-off circuit; the pre-charging circuit and the soft turn-off circuit are both in parallel connection with the main relay and are serially connected between the battery and the full turn-off circuit; and a control coil of the main relay and a power relay control coil of the full turn-off circuit are both connected with the soft turn-off circuit. With such structure, the structure of the high-voltage electric control circuit for the electric automobile respectively finishes the processes of charging and supplying power to a load motor controller and cutting off a high-voltage direct current power supply by a power supply battery through a pre-charging process, a normal working process and a cut-off process. An especially expensive direct current relay is replaced by the common industrial relay, thereby being low in cost, avoiding arc generation, and meanwhile, achieving a soft turn-on / off circuit and limiting an instant peak current.

The invention discloses a dual-purpose pen with functions of writing and counting. The pen is characterized in that a counter is arranged in a penholder and comprises a counting button, a reset buttonand a digital display screen, a refill is a refill with wings, the pen is further provided with a cylindrical slider having a middle hole, and the slider sleeves the refill from the rear portion through the middle hole and is retained above the wings of the refill and provided with an annular groove. An inner part, corresponding to the slider, of the penholder is provided with an 's'-shaped curved leaf spring, one end of the leaf spring is attached to the inner wall of the penholder while the other end is provided with a projection, the penholder is provided with a longitudinal groove corresponding to the leaf spring, and a slide button on the longitudinal groove is exposed outside the penholder. By shifting of the slide button position, the projection at the tail end of the leaf spring can be embedded into or retracted out of the annular groove of the slider to control switching between two functions of the dual-purpose pen. The leaf spring, the projection, the longitudinal groove and the slide button are positioned on the front portion of the penholder namely close to a normal pen-holding position, so that convenience in use is achieved, and efficiency is improved.

The invention discloses a 3D printing feed mechanism. The 3D printing feed mechanism comprises a powder box, a front powder box plate and a back powder box plate; a strip-shaped feed groove is formed in the lower part of the powder box, a plurality of downward oblique front material guide plates are arranged on the surface, facing to the back powder box plate, of the front powder box plate, a plurality of downward oblique back material guide plates are arranged on the surface facing to the front powder box plate of the back powder box plate, the plurality of front material guide plates and the plurality of back material guide plates are arranged to be mutually crossed and isolated to form a spiral feed channel, rotating bodies are rotationally connected to the front powder box plate and the back powder box plate, the shapes of the lower end faces, facing to the front powder box plate, of the rotating bodies are matched, and the shapes of the lower end faces, facing to the back powder box plate, of the rotating bodies are matched with the shape of the lower end face of the back powder box plate. The 3D printing feed mechanism disclosed by the invention has the advantages of simple structure, novel and reasonable design, simplicity in operation, high flexibility and strong practicability, has a function of shifting switch positions and can achieve accurate feed, so that the 3D printing feed mechanism is convenient to popularize and apply.

The invention discloses a novel multichannel meteoric trail channel simulator, which is a simulation device of a multichannel meteoric burst communication channel transmission environment in the field of communication. The novel multichannel meteoric trail channel simulator is composed of a multiplexer switch, a power distribution synthesis unit, a splitter and combiner unit, a numerical control attenuator, a control unit, a communication interface unit, a channel switching interface unit, a channel simulation processing unit, a storage unit, a power supply and other components, and is serially connected in devices of a meteoric trail communication system to simulate the influence of an actual meteoric trail channel on a signal, so as to test and check the performance indexes, link performance, networking functions and the like on newly researched meteoric trail communication devices in a laboratory environment. The novel multichannel meteoric trail channel simulator disclosed by the invention further has the advantages of high integration degree, small volume, convenient use, stable performance and the like.

The invention discloses a method and system for processing a tax-related service on line. The method comprises the following steps: a terminal chooses one of a plurality of network passages to establish connection with a server, and transmits pre-stored authorization information to the server; after receiving the confirmation information to the authorization information by the server, the terminal generates tax-related service data according to the pre-stored basic taxpayer information, and transmits the tax-related service data to the server; and after receiving the confirmation information to the tax-related service data by the server, the terminal generates a two-dimensional code according to a pre-stored encryption key, and forms a tax-related service data page by using the tax-related service data, the two-dimensional code and a generated security code. By the invention, the switching function of a plurality of network passages can be realized, the impact of a single transmission medium on the tax-related service is reduced, and the channel for providing the service for a taxpayer is expanded; meanwhile, the consumption of server end resources by the tax-related service is greatly reduced, and the reduction in the consumption of the server end resources undoubtedly results in reduction in revenue department expansion cost.

The invention relates to an air-suction recycling type two-spray-head sand blasting machine for an automobile part. The air-suction recycling type two-spray-head sand blasting machine comprises a housing, and further comprises a circulating transmission device, wherein a sand blasting cavity and a sand blasting device are arranged in the housing; the sand blasting device comprises a sand supply pipeline and two sand blasting mechanisms; each sand blasting mechanism is separately arranged on the left upper side or the right upper side of a clamp; the circulating transmission device comprises aring-shaped conveyor belt and a circulating drive mechanism for driving the ring-shaped conveyor belt to move in a circulating mode; a charge hole and a discharge hole for allowing the conveyor belt to get in and out are formed in the housing; blast sand recycling boxes are separately arranged on positions, on the charge hole and the discharge hole, of the housing; each blast sand recycling box isseparately equipped with a box body outlet, a box body inlet and a curtain; a blast sand collecting pipeline is arranged on the bottom of each blast sand recycling box; and a negative-pressure mechanism for guiding blast sand to the outside of the corresponding blast sand recycling box is arranged on the corresponding blast sand collecting pipeline. With the adoption of the scheme, the inventionprovides an air-suction recycling type two-spray-head sand blasting machine for the automobile part, and the air-suction recycling type two-spray-head sand blasting machine avoids blast sand waste andenvironmental pollution as a result of taking out products.

The invention discloses a screwdriver. The screwdriver is characterized in that a screwdriver handle (1) is connected with a screwdriver head (2) through a rotating hole (14), a rotating shaft (26), a screw (15) and a screw hole (13). The switching function of the shapes of multiple screwdriver heads of the screwdriver is achieved and the screwdriver is used by people in the use process more conveniently and efficiently.

The invention discloses a storage engine switching method and a device, electronic equipment and a medium, and relates to the technical field of data storage. The method according to the invention comprises the steps of in response to a storage engine switching request, obtaining a target storage engine type; creating a first empty engine based on the target storage engine type, setting the stateof the first empty engine to be an activated state, and the first empty engine in the activated state is used for receiving real-time new data and providing service for the outside; and migrating thedata from the current old engine to the first null engine, and reserving the latest value of the data in the migration process. According to the method, automatic switching between engines is realized; in the switching process, an empty engine is created and activated, the activated empty engine receives real-time new data, and then the latest value of the data is reserved in the migration processof the data from an old engine to the empty engine, so that the storage of the real-time new data is not influenced, the upper layer is not perceived, and the stability and consistency of the data inthe migration process are ensured.

Disclosed is a matrix material suction distributor. A driving shaft and a driven shaft are arranged on two sides of a frame, flat belt wheels are arranged on the driving shaft and the driven shaft at intervals, flat belts are arranged along the horizontal direction of the flat belt wheels at intervals, panels and distributing boxes are arranged between the driving shaft and the driven shaft in the flat belts, a discharging port connected with a machine charging basket is formed on each flat belt, each panel is positioned on one side of the corresponding discharging port, vertical strip grooves are spliced to form the distributing boxes, a feeding port connected with a feed bin is formed in the bottom of each strip groove, through holes matched with the discharging ports of the flat belts and the feeding ports of the distributing boxes are horizontally and vertically formed in the panel, electromagnetic clutches are embedded into the flat belt wheels on the driving shaft and used for controlling the flat belt wheels to move, and a coder is arranged at the top end of the driving shaft and used for controlling the positioning positions of the discharging ports of the flat belts. A plurality of maturation feed bins are integrally operated to feed, the number of configured maturation feed bins can be increased by the aid of distributing box component modularization, discharging seal is ensured by the aid of the flat belts with the discharging ports, feed bin switching functions are realized, and feeding requirements of a plurality of plastic foam machines can be met.

The invention provides a multi-spectrum motion control method used for a fluorescence microendoscopy. A system comprises a human-machine interaction module, a motor driving module and a multi-spectrummodule. The man-machine interaction module is used for realizing user parameter inputting and state displaying. The man-machine interaction module transmits a command to the motor driving module. After the motor driving module receives the command of the man-machine interaction module, the motor driving module drives a stepping motor to rotate for a corresponding angle for arriving at a target position. The multi-spectrum module comprises a plurality of fluorescence optical filter squares. Rotation of the stepping motor drives switching of the plurality of fluorescence optical filter squares.According to the multi-spectrum motion control method for the fluorescence microendoscopy, the plurality of fluorescence optical filter squares are switched through using the stepping motor, therebyrealizing a switching function of the multi-spectrum module, preventing tedious manual operation, reducing man errors and improving convenience and accuracy.

Embodiments of the present invention provide a network processing method, a personal computer, and a wireless network card. The method comprises: detecting whether a wireless network signal exists, and if yes, detecting whether a local wired network is in a connection state; and if the local wired network is in the connection state, disconnecting the local wired network, and using a wireless network.

The invention provides a distributed power amplifier with a reconfigurable frequency band, and belongs to the technical field of power amplifiers. A switch inductor is introduced into a traditional distributed power amplifier, whether the inductor is connected to a circuit or not is controlled through a switch, so that frequency band switching is achieved, a self-resonance point of a large choke inductor is transferred to the outside of a band, and the power additional efficiency can be improved by 27% at most compared with a traditional distributed structure.

The embodiment of the invention discloses a headset. A hollow channel (110) with fixed length and a ball (120) freely rolling in the hollow channel are arranged inside the headset, and pressure sensors (130) used for sensing an impact pressure of the ball are arranged at the ends of the hollow channel; when the headset sways from side to side, the ball located in the hollow channel also can roll from side to side and can impact the pressure sensors at the two sides of the channel while rolling, and the pressure sensors can sense impact forces which are brought by swaying of the ball from sideto side; and the pressure sensors are connected with a comparison circuit and transmit the acquired pressure values to the switching circuit, the comparison circuit can compare with a pressure threshold value according to the received pressure values, a switching instruction is sent to the switching circuit according to a comparison result, and switching is performed. The headset can realize a switching function when the head of a user sways from side to side, manual switching does not need to be performed, and use of the user is facilitated. The invention also discloses a switching method anda switching system which have the beneficial effects.

The invention provides a compact light source switching device. The compact light source switching device comprises a base, a switching ring, a pulling rope, a heat sink and light sources, wherein a groove is formed in the base; the switching ring can rotate around the base; the pulling rope is connected to the two ends of the heat sink and fastened to the switching ring; and the heat sink is provided with the light sources and light transmission holes, can be provided with the multiple light sources or the multiple light source light transmission holes or can be provided with the multiple light sources and the multiple light source light transmission holes at the same time. The switching ring is rotated and drives the pulling rope to move, and the pulling rope drives the heat sink to slide, so that switching of the light sources is achieved. The compact light source switching device is compact in structure, reasonable in design, easy to assemble, convenient to realize, small in size and low in weight; the double-light-source switching function is achieved, and integration of various light source emitting mechanisms is also achieved; and the compact light source switching device is low in realizing cost, convenient and rapid in light source switching, long in service life, high in practicability and easy to apply and popularize.

The invention provides a motion visual simulation method for an underwater super-cavity vehicle. A visual simulation system consists of a calculation module, a model loading module, a view display module and a communication module, wherein the calculation module comprises a super-cavity vehicle motion model, a stable cavity flow model, a control rule and a super-cavity vehicle trajectory model; the model loading module establishes a two-dimensional model and receives updating data and a message; the view display module receives a real-time operation instruction and carries out two-dimensionalgraphics real-time display and view re-drawing; and the communication module provides a uniform interface and acquires track calculation model data and transfers the real-time updating data to each view simultaneously. The invention provides the visual simulation system of the super-cavity vehicle which can make a user know a motion rule of the super-cavity vehicle more intuitively through simulation and can assist in finishing the design, verification, filtration and determination of a control scheme by combining the longitudinal motion control of the super-cavity vehicle and a virtual reality technology based on an open graphics library (OpenGL).

The invention discloses a switching method of an LTE macro-micro self-organizing network. The method is characterized in that a micro-station gateway HeNB GW can be used to receive switching request information; switching identification carried by the switching request information can be acquired; the switching request information can be transmitted to a target base station according to the switching identification. The invention also discloses a micro-station gateway and a switching system of an LTE macro-micro self-organizing network.