39results about How to "Automatic switching" patented technology

The invention discloses a subway location method based on an inertial sensor. The location method comprises the steps: (1) collecting starting acceleration of a train through an acceleration sensor of a mobile terminal; (2) determining an initial state of the mobile terminal relative to the train according to gravity acceleration and the starting acceleration, and resolving the acceleration of the train according to the initial state; (3) calculating out a zero-drift vector of an acceleration sensor of the train and a zero-drift vector of a gyroscope sensor of the train; (4) correcting an acceleration component in a train rail direction and calculating out displacement of the train according to the corrected acceleration component in the trail rail direction. According to the location method, high-precision location in a subway can be achieved through a gyroscope of the mobile terminal, an accelerometer of the mobile terminal, an off-line map and an id of a base station cell. The method has the characteristics of being low in cost and high in accuracy, has good application prospect and can solve the problems that an existing mobile terminal map base station is large in location mode error and slow in switch.

The invention relates to the field of logistics automation, and specifically relates to a control system and method for the secondary precise positioning of an AGV. The system is implemented through the following technical scheme that the system comprises an AGV and an auxiliary positioning device; the AGV comprises a vehicle body, a drive unit, a controller and a scanning device disposed on the vehicle body; the controller comprises a switching device for switching a positioning algorithm. The objective of the invention lies in providing the control system and method for the secondary precisepositioning of the AGV, and the system can trigger the secondary precise positioning in a large work occasion, and switches the positioning algorithm, and continues to work at high precision.

The invention is a capacitance equipotential-switching thyristor triggering circuit, including high- voltage thyristor, control optical coupler and auxiliary power supply, and adopting trigger current control triode, amplifier triode, voltage zero-passage detecting triode and trigger current by-pass triode. Its main circuit voltage is rectified and then applied on two ends of the high-voltage thyristor, the auxiliary power supply is a DC power supply derived from rectification and filtration of an AC power supply and applied on to a resistance connected with the collector of trigger current control triode so as to generate a trigger current for the high-voltage thyristor, and the high-voltage thyristor is triggered as the two conditions that the control optical coupler is switched on and that the main circuit voltage passes zero. It realizes the function of triggering by zero passage of the main circuit voltage at high voltage, needs no connection waiting time, and realizes the equipotential capacitance switching, and avoids the impact current as the capacitance is connected to the electric network.

The invention discloses a method for realizing multiple network operation through mobile phone, wherein a fixed module is arranged in the mobile phone for processing the operations for the fixed network, a fixed proxy is arranged and connected to the fixed network for receiving the corresponding instructions of the fixed modules in mobile phone through wireless mode and processing the command, transforming it into the operation to fixed network, thus realizing the operation to fixed network.

The invention relates to the electronic equipment field, especially to a display method and electronic equipment. The method is applied to first electronic equipment with a projection display unit; and the projection display unit is used for forming a projection image at a bearing surface when the bearing surface is located at a projection area of the projection display unit. The method comprises the following steps that: projection parameter information is obtained, wherein the projection parameter information is used for indicating the dimension of an effective portion of the projection image at the bearing surface; according to the obtained projection parameter information, a display mode corresponding to the projection parameter information is determined and content data corresponding to the display mode are outputted, thereby forming a projection image at the bearing surface. The first electronic equipment has at least two display modes including a first display mode and a second display mode; and in the first display mode, the first electronic equipment at least outputs first content data; and in the second display mode, the first electronic equipment at least outputs second content data. And the first content data are different from the second content data.

The application provides an automatic teleprompter method for video recording. The method comprises the following steps: inputting designed script into a teleprompter system, placing a sentence to berecorded in the script in the center of a teleprompter center to display; collecting voice information of video-recorded personnel, identifying the voice information of the video-recorded personnel, and converting the voice information into text information; matching the text information with the sentence at the center of the teleprompter screen; if the matching is successful, moving the next sentence in the script to the screen center of the teleprompter by the system; if the matching is unsuccessful, further judging whether the matching dissimilarity t is greater than the preset threshold T,if the matching dissimilarity t is greater than the preset threshold T, automatically interrupting and ending the prompting; if the matching dissimilarity t is not greater than the preset threshold T, giving caution information in different levels according to the size of t, and enabling the video recorder to decide whether to end; if the video recorder decides not to end, continuously performingvoice information collection, identification and subsequent flows, or directly ending the operation.

The invention discloses an intelligent traffic command robot which comprises a shell. A lifting support column adjustable in height is fixedly arranged at the bottom of the shell, the bottom of the lifting support column is arranged in the middle of the top surface of a moving platform, a switching cavity is arranged in the left part of the shell, a switching power supply unit is arranged in the switching cavity, the switching power supply unit includes a first motor fixedly arranged in the top wall of the switching cavity, a first threaded rod is in power fit connection with the bottom of thefirst motor, and the first threaded rod extends downwards to the switching cavity to be rotatably and fitting connected with the bottom wall in the switching cavity. The intelligent traffic command robot is simple in structure, convenient and rapid in operation and capable of realizing switching between two traffic lamps automatically; when one of the traffic lights is damaged, the other trafficlight can be switched to immediately for power connection, and traffic disturbance is avoided.

The invention discloses a main power supply and standby power supply switching circuit, which comprises a direct-current input main power supply U1 and a direct-current input standby power supply U2 for supplying power to a ship rectification generator, a first Boost chopper circuit for boosting the direct-current input main power supply U1, a second Boost chopper circuit for boosting the direct-current input standby power supply U2, counter-current protection diodes D1-D4, a filtering module and an inversion unit for converting direct-current input into three-phase alternating-current output,wherein the two Boost chopper circuits adopt closed-loop PID control, and the Boost branch output voltage U1' of the first Boost chopper circuit is controlled to be 2-10 V larger than the Boost branch output voltage U2' of the second Boost chopper circuit. According to the main power supply and standby power supply switching circuit, priority selection of main power supply branches and automaticswitching between main and standby power supplies can be realized; and compared with the traditional power supply switching circuit adopting a circuit breaker and a relay, the main power supply and standby power supply switching of the invention adopts a power electronic device to switch, has the extremely short switching time of only [mu]s, can ensure the uninterrupted output of the inverter sidein the power supply switching process, and achieves seamless switching.

The invention discloses a method and device applied to a graph database, and relates to the technical field of computers. The method comprises the following steps: receiving a service request from a user; calling data in the graph database based on the service request of the user; sending the retrieved data to a user, wherein the data is stored in a graph database in a distributed manner; when thesame data is configured with a plurality of copies, configuring a cross-cluster mode to support intra-city double clusters and remote clusters. Before the user request is sent to the nodes in the cluster, whether the service of each node in the cluster is normal or not is automatically detected, and if it is detected that the service of one or more nodes fails, the task related to the user request is not sent to the failed node. The invention has the functions of disaster recovery in the same city and different places, and can automatically isolate faulty nodes in the cluster, thereby improving the efficiency of maintaining the graph database cluster and reducing the management cost of the graph database cluster.

The invention discloses a music feedback regulation system based on signal processing. The music feedback regulation system comprises a music library, a music library unit, an emotion analysis unit, an emotion real-time monitoring unit and a music playing unit. The music library unit classifies music in the music library according to acoustic characteristics and lyric semantics of the music; the emotion analysis unit judges the initial emotion state of a subject according to audio characteristics; the emotion real-time monitoring unit monitors the emotion of the subject in real time through physiological signals and facial expression signals of the subject; and the music playing unit plays the corresponding music according to the initial emotion state and switches the music in real time according to the result of the emotion real-time monitoring unit. The music feedback regulation system based on signal processing achieves accurate matching of the music played by the subject based on accurate evaluation of the emotion state of the subject and accurate classification of the music, responds to changes of the body reaction mechanism of the subject, can automatically switch the played music, and has the self-learning and self-regulation functions, and the music switching function has the function of restraining emotion pseudo changes.

The invention relates to a single-light lens assembly for an automobile. The single-light lens assembly comprises a resin lens, a plastic support, an upper beam and lower beam switching module, an aluminum reflector and an H1 halogen lamp, wherein the resin lens is installed at the front end of the plastic support, the plastic support is installed right ahead of the upper beam and lower beam switching module, the upper beam and lower beam switching module is placed right ahead of the aluminum reflector, a light outlet of the aluminum reflector and the resin lens are arranged in a coaxial mode in the same direction, the H1 halogen lamp is installed at the bottom of the aluminum reflector, the plastic support and the resin lens are tightly pressed through buckles, and the aluminum reflector is fixed by the plastic support through four supporting legs. According to the single-light lens assembly, upper beam and lower beam switching can be automatically achieved through the adjustment of a light barrier; the single-light lens assembly is simple in structure, stable in performance and low in cost; the aluminum reflector and the lens are good in combination effect, wide in light range and clear, and cost is further reduced and effects are good due to the adoption of the H1 halogen lamp.

The invention relates to the electronic payment and information safety field, and discloses interface conversion equipment communicating with a safety device used for calculating electronic payment codes and a method thereof. The invention is primarily used for interface conversion when the invention communicates with the safety device to calculate the electronic payment codes. The invention can effectively ensure that a PC computer or bank computer terminal equipment connects with and communicates with the safety device in USB-key mode to calculate the electronic payment codes; mains input can be provided for the safety device to calculate the electronic payment codes during communication. At the same time, the equipment can also independently support the connection with prior hand-held electronic payment coder equipment through standard serial port transfer lines, and is compatible with such operations and functions as initialization and loading account information of prior hand-held electronic payment coder equipment at the bank terminal.

The invention provides a domain name connection method and device for SaaS, computer equipment and a storage medium, which are used for automatically realizing domain name switching so as to ensure high availability of the service. The method mainly comprises the steps of: when a SaaS service request sent by a user is received, obtaining a domain name priority sequence table, determining whether a client is in a fusing state or not, wherein the domain name with the highest priority in the domain name priority sequence table is the main domain name, and the other domain names are standby domain names; if the client is not in the fusing state, using the main domain name to access the SaaS service; if the client is in the fusing state, determining whether standby domain names in the domain name priority sequence table are all unavailable; if the standby domain names in the domain name priority sequence table are available, using the available standby domain names to access the SaaS; and if the standby domain names in the domain name priority sequence table are all unavailable, accessing the SaaS by using the domain name set by the user or a default domain name.

The invention relates to a light emitting diode (LED) automobile headlamp module. The LED automobile headlamp module comprises a spotlight reflector cup, a sealing groove and an optics diffusion sheet, wherein the sealing groove is located at the front end of the spotlight reflector cup, and the optics diffusion sheet is arranged in the sealing groove. On the one hand, dipped headlight illumination is achieved after light rays of an LED lamp are converged by the spotlight reflector cup and horizontally diffused through the optics diffusion sheet, on the other hand, distant light illumination of the LED lamp is achieved after the light rays of the LED lamp are converged by the spotlight reflector cup and combined with filled liquid and the optics diffusion sheet. The LED automobile headlamp module is simple in structure, high in light use ratio of a light emitting unit, and convenient to use and operate due to the fact that switching between a distant light and a dipped headlight is achieved by filling a space between the sealing groove and a storage groove with the filled liquid and using an added drive device which can automatically achieve the switching between the distant light and the dipped headlight, and shows the advantage of microminiaturization of the LED lamp due to the fact that the overall structure of the LED automobile headlamp module is controlled in a small size.

The invention provides a transformer respirator system. The system comprises a control unit, a driving mechanism, a three-way conduit and a linkage valve, the three-way conduit comprises a first conduit, a second conduit and a third conduit which are communicated with one another; the linkage valve is arranged at the communication position of the first conduit, the second conduit and the third conduit. An opening side of the first conduit is connected with a first respirator; an opening side of the second conduit is connected with a second respirator, an opening side of the third conduit is connected with a transformer oil conservator, and the control unit is used for controlling the driving mechanism to drive the linkage valve to move so that the first conduit, the second conduit and thethird conduit can be connected or disconnected. According to the transformer respirator system, the technical problems that heavy gas action is easily caused when an existing transformer breather is replaced and detached and a circuit breaker on each side of a transformer trips to stop a main transformer can be solved.

The invention relates to the electronic payment and information safety field, and discloses interface conversion equipment communicating with a safety device used for calculating electronic payment codes and a method thereof. The invention is primarily used for interface conversion when the invention communicates with the safety device to calculate the electronic payment codes. The invention can effectively ensure that a PC computer or bank computer terminal equipment connects with and communicates with the safety device in USB-key mode to calculate the electronic payment codes; mains input can be provided for the safety device to calculate the electronic payment codes during communication. At the same time, the equipment can also independently support the connection with prior hand-held electronic payment coder equipment through standard serial port transfer lines, and is compatible with such operations and functions as initialization and loading account information of prior hand-held electronic payment coder equipment at the bank terminal.

The invention discloses a gateway WiFi failover method, device, equipment, and a medium. The method comprises the steps of monitoring a connection state of a gateway and a server, when monitoring thatthe network connection is abnormal, replacing the current network configuration file with a target configuration file of the target AP hotspot, wherein the target AP hotspot is any other AP hotspot except the AP hotspot which cannot be normally connected with the gateway at present, restarting the network service, and judging whether the connection between the gateway and the server is re-established or not, and if the connection between the gateway and the server is not re-established, skipping to the step of replacing the current network configuration file with the target configuration fileof the target AP hotspot. Thus, network switching is automatically realized under multiple AP hotspots, the network problem can be repaired in time, the stability of data uploading of the gateway isimproved, and frequent manual configuration is avoided.

The present invention provides a 4G wireless network sharing device, the 4G wireless network sharing device includes a dual-core CPU, a T-FLASH card connector and a MicroUSB connector to support the insertion of a 64G T-FLASH memory card; the dual-core CPU Communicatively connect with the T-FLASH card connector and the MicroUSB connector respectively. The invention can convert the mobile communication network signal into multiple network signals to meet the simultaneous use of multiple local area network devices, realize the shared storage function of the local area network, and automatically realize the charging of the sharing device itself and the external portable device according to the difference of the inserted USB connection line Switching between power supply functions.

The invention relates to a detecting and positioning device of a rotating shaft cotter pin assembling machine. The detecting and positioning device comprises a control system, a mounting platform, a rotating positioning mechanism and a defective rotating shaft treating mechanism; the rotating positioning mechanism comprises a rotating support seat, a rotating assembly and a detection assembly, andthe rotating positioning mechanism is fixedly mounted on the mounting platform; the defective rotating shaft treating mechanism comprises a rotating shaft collecting box and a defective rotating shaft moving assembly and is fixedly mounted on the mounting platform; and the control system is in electric control connection with the rotating assembly, the defective rotating shaft moving assembly andthe detection assembly. According to the detecting and positioning device of the rotating shaft cotter pin assembling machine, a rotating shaft can be accurately adjusted to the required position, the working efficiency is high, the assembling quality is high, and an unqualified rotating shaft can be automatically moved into the rotating shaft collecting box.

The present invention provides a transformer respirator system, which includes a control unit, a driving mechanism, a three-way conduit, and a linkage valve. The three-way conduit includes a connected first conduit, a second conduit, and a third conduit. The linkage valve is arranged at The connection of the first conduit, the second conduit and the third conduit, the opening side of the first conduit is connected to the first respirator, the opening side of the second conduit is connected to the second respirator, and the opening side of the third conduit is connected to the transformer For an oil conservator, the control unit is used to control the driving mechanism to drive the linked valve so as to make the first conduit, the second conduit and the third conduit conduct or block. The invention can solve the technical problem that heavy gas action is easily caused when the existing transformer respirator is replaced and removed, and the circuit breakers on each side of the transformer are tripped and the main transformer is out of operation.

The embodiment of the invention discloses a control system switching device. The control system switching device comprises a switch component and a controller connected with the switch component; a power supply is connected to two control systems through the switch component; the controller is used to determine a master control system and a backup control system from the two control systems according to a preset rule after a system is powered on, and control the switch component to communicate with the master control system; and when the master control system fails, the switch component is controlled to be switched to communicate with the standby control system. The device adopts an automatic switching mode; when a fault occurs in the running control system, the controller realizes the automatic switching of the control system by adjusting the on-off between the switch component and the control system, thereby effectively reducing the influence caused by untimely switching of the control system in the prior art. In addition, the invention also provides a control system switching method, and the effect is as above.

The invention relates to analog switch circuit and a secondary current detection circuit for an inversion resistance welding machine. The analog switch circuit comprises a comparison circuit, a detection circuit, and an electronic switch circuit. The input end of the comparison circuit is connected with a Rogowski coil voltage signal output end, and the output end of the comparison circuit is connected with the input end of the detection circuit. The output end of the detection circuit is connected with the control end of the electronic switch circuit. The comparison circuit compares a Rogowski coil output voltage signal with a preset comparison voltage, and outputs a control signal to the detection circuit. The detection circuit transmits the control signal to the control end of the electronic switch circuit after detection processing of the control signal, and the electronic switch circuit controls a fixed integrating circuit and an adjustable integrating circuit to switch the working states according to the processed control signal, wherein the fixed integrating circuit and the adjustable integrating circuit are connected with the electronic switch circuit. The analog switch circuit can control the integrating circuits to switch the state between an integrating state and a non-integrating state, effectively reduces the time of an integrating capacitor in the integrating circuits in arriving at a saturation state, and guarantees the stability of a system.

The invention discloses an ultrasonic probe automatic switching method based on lens echoes. The ultrasonic probe automatic switching method comprises the following steps that S11, ultrasonic probes are connected with an ultrasonic system, all the ultrasonic probes connected with the ultrasonic system are placed in the air, and the ultrasonic system is started; S12, each ultrasonic probe lens echo is monitored in real time, and a correlation coefficient between the monitored ultrasonic probe lens echoes and the ultrasonic probe lens echo preset in the air is calculated; and S13, whether the correlation coefficient obtained through calculation is smaller than a preset threshold value or not is judged, if not, processing is not carried out, and if yes, the current ultrasonic probe is switched. According to the technical scheme of the ultrasonic probe automatic switching method based on the lens echoes, an ultrasonic doctor only needs to lightly touch the surface of the lens of the ultrasonic probe with a hand during use, the ultrasonic system can automatically realize the switching of the ultrasonic probe, and the ultrasonic system probe is simply, effectively and automatically switched; and according to the ultrasonic probe automatic switching method based on the lens echoes, the probes can be automatically switched by adopting a lens echo mode, an additional sensor is not needed, and the cost of the ultrasonic system is reduced.

The invention relates to the technical field of water purifiers, and in particular relates to a detachable filter element structure. The detachable filter element structure comprises an installation seat arranged on a waterway and a filter element component arranged on the installation seat, and the filter element component comprises an outer shell and a filter element arranged in the outer shell; one side of the installation seat is provided with a first water pipe, and the other side is provided with a second water pipe; the installation seat is provided with an accommodating cavity communicating with the first water pipe and the second water pipe; and a first conversion device and a second conversion device are arranged on the installation seat, the first conversion device realizes communication switching between the first water pipe and the interior of the filter element or the accommodating cavity, and the second conversion device realizes communication switching between the second water pipe and the exterior of the filter element or the accommodating cavity. The detachable filter element structure provided by the invention can realize replacement of the filter element under the condition that a faucet is not closed, does not affect water use and is convenient and quick.

The invention discloses a traffic guidance robot. The traffic guidance robot comprises a shell body, the bottom of the shell body is fixedly provided with a lifting type supporting column capable of adjusting height, the bottom of the lifting type supporting column is fixedly arranged in the middle of the top face of a moving platform, the left portion in the shell body is provided with a switching cavity, a switching power supply device is arranged in the switching cavity, the switching power supply device comprises a first motor fixedly arranged on the inner top wall of the switching cavity,the bottom of the first motor is dynamically and cooperatively connected with a first threaded rod, and the first threaded rod stretches into the switching cavity downward and is rotationally and cooperatively connected with the inner bottom wall of the switching cavity; the traffic guidance robot has the advantages that the structure is simple, the operation is convenient and fast, the switchingbetween two traffic lights can be automatically achieved, when one of the traffic lights is damaged, the other traffic light is switched to be connected with the power to work, thereby avoiding traffic chaos.

The invention provides a hydraulic valve for a differential loop and the hydraulic differential loop. The hydraulic valve for the differential loop comprises a valve body, a main valve element, a pilot valve sleeve, a pilot valve element and a thread sleeve assembly, wherein the valve body is provided with an oil port A and an oil port B, the main valve element is connected into the valve body, the main valve element is provided with a first damping channel, the pilot valve sleeve is connected into the valve body and connected with the main valve element through a first elastic piece, a control cavity is formed between the pilot valve sleeve and the main valve element, the pilot valve sleeve is provided with a pilot valve element cavity, a through-flow hole and a second damping channel communicating with the control cavity, the pilot valve element is movably connected into the pilot valve element cavity, one end of the pilot valve element plugs a valve opening, communicating with the second damping channel, of the pilot valve sleeve, the middle portion of the pilot valve element plugs the through-flow hole, the thread sleeve assembly is connected to the outer side of the pilot valve sleeve in a sleeving manner and connected with the valve body, the thread sleeve assembly is provided with a thread sleeve channel communicating with the oil port B, and the thread sleeve assembly is connected with the other end of the pilot valve element. The hydraulic valve for the differential loop simplifies the structure of the differential loop, reduces use of a controller and provides backpressure for the feeding working condition.

The invention provides membrane bioreactor wastewater treatment equipment which comprises a treatment box, and an aeration pipe can be driven by a power device to rotate; a membrane assembly is arranged above the aeration pipe in a non-contact mode, MBR membranes are fixedly arranged on the two sides of the supporting rod, and a lifting pipe is arranged on the side wall of the treatment box in a communicating mode. The bottom of the connector pipe is communicated with a first flushing cover, the first flushing cover is used for flushing the MBR membrane, the flushing pipe is communicated with a second flushing cover, the second flushing cover is used for flushing the aeration holes and the anti-blocking net in the aeration holes, an opening of the flushing pipe is provided with an elastic sealing section, and the opening of the flushing pipe is communicated with the first flushing cover. A power pump switch is arranged in the elastic sealing section in a wrapped mode and is in signal connection with the power pump. The membrane bioreactor wastewater treatment equipment provided by the invention is internally provided with the backflow flushing device, so that the aeration holes of the aeration pipe and the MBR membrane of the membrane assembly can be respectively flushed, and the use effect is better.

The invention relates to a light emitting diode (LED) automobile headlamp module. The LED automobile headlamp module comprises a spotlight reflector cup, a sealing groove and an optics diffusion sheet, wherein the sealing groove is located at the front end of the spotlight reflector cup, and the optics diffusion sheet is arranged in the sealing groove. On the one hand, dipped headlight illumination is achieved after light rays of an LED lamp are converged by the spotlight reflector cup and horizontally diffused through the optics diffusion sheet, on the other hand, distant light illumination of the LED lamp is achieved after the light rays of the LED lamp are converged by the spotlight reflector cup and combined with filled liquid and the optics diffusion sheet. The LED automobile headlamp module is simple in structure, high in light use ratio of a light emitting unit, and convenient to use and operate due to the fact that switching between a distant light and a dipped headlight is achieved by filling a space between the sealing groove and a storage groove with the filled liquid and using an added drive device which can automatically achieve the switching between the distant light and the dipped headlight, and shows the advantage of microminiaturization of the LED lamp due to the fact that the overall structure of the LED automobile headlamp module is controlled in a small size.

The invention discloses a socket short circuit safe experience device. The socket short circuit safe experience device comprises a power supply, an operation panel, a controller, a flashing unit and a smoke unit, wherein the power supply supplies power to the operation panel; the operation panel comprises a socket and a plug, the plug is used for being inserted into the socket and completing socket short circuit operation; the operation panel, the flashing unit and the smoke unit are respectively connected with the controller; the controller is used for detecting whether the plug of the operation panel is inserted into the socket or not, and when the plug is inserted into the socket, the controller is also used for controlling the flashing unit to simulate flashing produced when the socket is in short circuit, so as to control the smoke unit to simulate smoke produced when the socket is in the short circuit. The socket short circuit safe experience device disclosed by the invention can realize that people can experience a danger phenomenon that a power supply is in short circuit when the socket is used by the people under the condition that safety of the people is guaranteed, so that the people can better understand a power supply circuit and safely feel a harm state, and the people can cultivate and pay attention to consciousness of electrical safety.