141 results about "Circuit switching" patented technology

The invention relates to an optical data network (10-1) for connecting a plurality of data network nodes (N1-1, N2-1, N3-1, N4-1). The optical data network (10-1) comprises: i) the plurality of data network nodes (N1-1, N2-1, N3-1, N4-1), the data (99) comprising data packets (99p), wherein each data network node (N1-1, N2-1, N3-1, N4-1) is provided with a network interface (Nl); and ii) a data connection network (100-1) comprising at least one data switch (SW) and a plurality of optical connections (50) for allowing establishment of data links (DL1, DL2) between pairs of said plurality of data network nodes (N1-1, N2-1, N3-1, N4-1). At least one of the at least one data switch (SW) is a smart data switch (SSW) comprising at least one packet switch (PS, EPS) and at least one circuit switch (CS, OCS), At least two network interfaces are smart network interfaces (SN, SNC) comprising a data classifier (25) configured for classifying the data packets (99p) into at least two traffic classes including first traffic class (D1) and a second traffic class (D2) in accordance with a classification scheme. The smart data switch (SSW) and the network interfaces (SN, SNC) are configured to route the data packets (99p) of the first traffic class (D1) to the packet switch (PS, EPS) and to route the data packets (99p) of the second traffic class (D2) to the circuit switch (CS, OCS).

The invention relates to the technical field of charge and discharge detection, and discloses a multichannel EIS charge and discharge in-situ test system and method, and the system comprises a DC charge and discharge module which is used for carrying out the constant-current, constant-voltage or cyclic charge and discharge test of a battery; the alternating current impedance test module is connected in parallel with the direct current charging and discharging module and is used for applying an alternating current disturbance signal to the battery and collecting impedance response in the charging and discharging process; and the unified clock module is used for providing a synchronous triggering reference signal for the direct current charging and discharging module and the alternating current impedance test module. The direct current charging and discharging module and the alternating current impedance test module are designed to be of a parallel connection normally-connected structure, no relay switching is needed, continuous and uninterrupted online EIS test in the charging and discharging process is achieved, contact resistance drift and transient errors caused by physical circuit switching in a traditional scheme are effectively avoided, and the reliability of the EIS test is improved. And the stability and repeatability of the test are obviously improved.

The control valve for cleaning the base station comprises a first valve section and a third valve section, the first valve section comprises a first shell and a first valve element rotationally installed in the first shell, a liquid inlet, a first liquid outlet and a second liquid outlet are formed in the first shell, a first channel is formed in the first valve element, and a second channel is formed in the second valve element; when the first valve element moves, any one of the first liquid outlet and the second liquid outlet is switched to be communicated with the liquid inlet through the first channel; the third valve section comprises a third shell and a third valve element rotationally installed in the third shell, the third shell is provided with a cleaning liquid outlet and a plurality of cleaning liquid inlets, a third channel is formed in the third valve element, and when the third valve element rotates, any one of the cleaning liquid inlets is switched to be communicated with the cleaning liquid outlet through the third channel. According to the invention, the technical problem that the switching control of the cleaning water loop and the adding control of the cleaning liquid cannot be realized through the same control valve in the cleaning base station can be improved.

The application relates to a dual-power switching switch which comprises a shell, a coil driving module and a main circuit switching module; the main circuit switching module comprises a handle switching and retaining mechanism, a handle and a guide assembly; the handle can rotate relative to the main support under the action of external force to make the two guide assemblies rotate in the mounting space of the main support, the two ends of the guide assembly act on the main support and the handle respectively, so that the handle is kept in the switched state; the elastic retaining mechanism comprises a shifting piece, a tension spring and a sliding block; the sliding block is slidingly arranged on the base; the handle rotates under the action of external force to drive the shifting piece to rotate and drive the sliding block to move, so that the tension spring is deviated to one side where the moving contact and the load static contact are in contact, the tension spring acts on the shifting piece to apply pressure on the contact; the arc extinguishing chambers are arranged on the two sides of a group of rotating assemblies. The handle switching and retaining mechanism and the elastic retaining mechanism ensure that the contact pressure between the poles of the main circuit is consistent.

This application relates to a distribution cabinet for an integrated busbar system in the field of power equipment. It includes a cabinet, a busbar support, a busbar copper busbar assembly, a current-carrying copper busbar assembly, a load switch, and an incoming switch. The busbar support includes a mounting base disposed within the cabinet, with multiple mounting slots on the mounting base. The busbar copper busbar assembly includes a live wire busbar and a neutral wire busbar, with the mounting slots for mounting either the live wire busbar or the neutral wire busbar respectively. The current-carrying copper busbar assembly includes a live wire current-carrying copper busbar and a neutral wire current-carrying copper busbar, both mounted on the busbar support. The live wire current-carrying copper busbar is electrically connected to the live wire busbar, and the neutral wire current-carrying copper busbar is electrically connected to the neutral wire busbar. The load switch controls the circuit switching of the electrical equipment. The incoming switch controls the switching of the main power supply to the distribution cabinet. This application improves the adaptability of the distribution box in different power usage scenarios.

The utility model relates to electronic equipment technical field discloses a kind of radio frequency circuit and electronic equipment, radio frequency circuit includes: cellular communication antenna;First GPS antenna;Second GPS antenna, compared with first GPS antenna, with higher spatial isolation between the cellular communication antenna;Radio frequency switching circuit, the input of the radio frequency switching circuit is connected the first GPS antenna and second GPS antenna, the output of the radio frequency switching circuit is connected GPS demodulator;Control module is connected with cellular communication module, for according to the interference state of cellular communication module output, control the radio frequency switching circuit switching and the connection state of the first GPS antenna and second GPS antenna. By the interference state of cellular communication module output dynamic adjustment antenna path, to enhance overall anti-interference capability. It is favorable to provide more stable GPS receiving path in the scene where cellular interference exists.

The utility model relates to a power supply system for being synchronously opened or closed with an electric appliance. The power supply system comprises a power supply circuit; the relay is arranged on the power supply circuit; the control module is electrically connected with the relay; the power supply module is electrically connected with the control module; the wireless trigger circuit comprises a data coding unit, a trigger switch and a radio transmission unit which are connected in series; the radio receiving unit is used for receiving the radio signal transmitted by the radio transmitting unit; the trigger switch is a flexible switch, is adhered to the electric appliance switch and is used for synchronously acting with the electric appliance switch, and the control module controls the on-off of the relay based on a radio signal received by the radio receiving unit. According to the application, the flexible trigger switch is adhered to the electric appliance switch, and the trigger switch is utilized to control the on-off of the wireless trigger circuit so as to transmit the corresponding electric signal, so that the control module controls the on-off of the relay based on the electric signal so as to achieve the purpose of controlling the on-off of the power supply circuit, thereby realizing the synchronous power-on or power-off of the power supply circuit and the electric appliance.

This invention relates to the field of temperature protector technology, and more particularly to an adjustable temperature protector structure and its usage method. The structure includes: an outer base with a locking interface; a switching outer shell rotatably connected to the outer base; a first limiting groove, a second limiting groove, and a transition groove within the switching outer shell; an inner base mounted on the locking interface; a first conductor fixed to the inner base; a slider sliding on the first conductor; a limiting protrusion on the side of the slider; an inclined surface on the side of the slider facing the inner base; a second conductor fixed to the inner base; a moving contact piece attached to and fixed to the inner base; and a deformation piece disposed between the first conductor and the moving contact piece. When the slider is closest to the inner base, the inclined surface aligns with the center of the deformation piece; when the slider is furthest from the inner base, the inclined surface aligns with the side of the deformation piece furthest from the inner base. This invention enables free adjustment of the temperature protector's operating mode, improves circuit switching efficiency, and avoids circuit damage.

The utility model belongs to the field of Internet of Things, and relates to a core board conforming to Jetson Orin Nano, which comprises an Internet of Things chip, a Jetson Orin Nano chip and a Jetson Orin Nano chip, the PCIE bridging controller chip, the power supply management chip, the power supply management system chip, the USB Hub controller, the Ethernet physical layer chip, the direct current power supply input circuit, the PMIC clock circuit, the analog power supply electromagnetic interference protection circuit, the LPDDR4 power supply circuit, the automatic power-on circuit, the PCIE switching circuit, the PCIE expansion chip power supply circuit and the PMIC interface circuit are electrically connected with the Internet of Things chip; the USB Hub controller is further connected with the switch chip, and the Internet of Things chip is used for collecting, processing, transmitting and controlling data of Internet of Things equipment. Due to the fact that the data processing capacity is high, the expansibility is high, power management and data transmission are stable, and powerful technical support is provided for application of the Internet of Things.

The invention discloses a double-negative one-state single-phase common-ground five-level inverter topology which comprises a photovoltaic cell PV, a double-negative one-state single-phase five-level inverter circuit, a single-phase output LC filter circuit and a single-phase load. The double-negative-one-state single-phase five-level inverter circuit comprises a direct-current side input filter capacitor Cdc, flying capacitors C1 and C2 and ten switching tubes S1 to S10, S2, S4, S5 and S9 are IGBTs (Insulated Gate Bipolar Translator) with fly-wheel diodes, and other switching tubes are IGBTs without fly-wheel diodes. According to the invention, complete suppression of the leakage current of the inverter can be realized; the amplitude of the AC-side output SPWM voltage is twice of the DC-side voltage, so that the utilization rate of the DC-side voltage is remarkably improved; the charge and discharge balance of the capacitor voltage is realized through the selection of the negative state, so that the waveform quality of the output voltage is improved; in each working mode, the number of switching tubes connected in series in a current conduction loop is small, and the loss of circuit switching devices is low.

The utility model relates to the technical field of light control, specifically relates to a multi -mode light -adjusting controller, it contains power mechanism, power mechanism output direct current's VH and 3V3, set up MCU and the drive chip connected with it in the controller, drive chip controls relay ware one and relay ware two respectively, MCU still has the light coupling ware for realizing switching and synchronous step -down converter, and the synchronous step -down converter output is connected to relay ware two, and the normally open mouth of relay ware two is connected back end for connecting the positive pole of lamp VOUT, this application can automatically identify the load type of access, for example LED or incandescent lamp etc, and then can switch the drive mode, need not according to different type to select different controller, this application adopts relay ware and carries out circuit switching, avoids the mutual interference between different power components.

Systems and methods for enhanced CSFB in a mobile operator core network are described. In one embodiment, a method of wireless communication by a user equipment (UE) is disclosed, comprising: directing a UE to move from an original cell using a first radio access technology (RAT) to a second cell using a second RAT to permit a circuit switched (CS) call; terminating the CS call at the second cell; determining whether the UE should reselect to the first RAT; identifying a target cell that may be in a same location as the second cell and that uses the first RAT; and sending the identified target cell to the UE within a field in a radio resource control message.

Method and system for determining a tripping range of an electrical circuit switching device The invention relates to a method and system for determining a tripping range of an electrical circuit switching device (4) adapted to supply an electrical installation (12).The system (2) includes an electronic computing module configured (6) to receive data from at least one vibration sensor (16) integrated into said switching device (4) and configured to select, from spectrograms calculated from acquired time-domain vibration signals, a predetermined subset of operational characteristics; apply a parameterized prediction model using supervised machine learning to the values ​​of the operational characteristics to obtain an estimated breaking current value; and determine, based on the estimated breaking current value, a tripping range for the switching device from among: normal tripping, overload tripping, and short-circuit tripping. Figure 1 for the abbreviation.

The application provides an electric energy conversion efficiency optimization method and related device. The method comprises: obtaining circuit component operating parameters and circuit switching frequency parameters; determining an initial time delay based on the circuit component operating parameters and the circuit switching frequency parameters; obtaining a plurality of stepped current values based on the initial time delay and a preset stepped time delay, each stepped current value being a current parameter corresponding to a time period after each step of the initial time delay, and the plurality of stepped current values being based on current signals from a current acquisition circuit module; and determining a target time delay based on the plurality of stepped current values. In this way, different target time delays can be determined based on the obtained current parameters in various module cases, the target time delays can change the target switching tube conduction points of different types of single-ended primary inductance converter circuit systems, the electric energy conversion efficiency is improved, and the efficiency difference and reliability risk between different modules caused by differences are eliminated.

This utility model relates to the field of switchgear technology, proposing a three-station mechanism drive assembly. Through the energy storage and release process of a torsion bar spring, it achieves rapid switching of the spindle assembly, effectively shortening operation time and improving circuit switching efficiency. The locking function of the pawl locking assembly ensures stable positioning of the output panel in the waiting state, preventing accidental rotation and improving the operational reliability of the three-station mechanism. The torsion bar spring stores energy through torsion and is easy to install on the spindle assembly of the three-station machine. Simultaneously, this three-station mechanism drive assembly integrates closing (connection), isolation, and grounding functions into one unit, simplifying the internal structure of the switchgear, reducing equipment size and manufacturing costs, and meeting the power system's requirements for compact and economical switchgear.

The utility model relates to a kind of gas circuit switching device, including base, briquetting, mounting seat, air pipe, sliding sleeve, spring, base side wall is equipped with suction pipe, briquetting bottom surface is equipped with slot, briquetting one end is equipped with the suction hole being communicated with slot, mounting seat fixed frame is set in base top, air pipe is fixed and is set on mounting seat, air pipe one end passes through mounting seat and is inserted with slot and is inserted into cooperation, air pipe other end passes through mounting seat and is communicated with suction pipe by communicating pipe, sliding sleeve sliding sleeve is set on the air pipe between briquetting and mounting seat and with briquetting abutment cooperation, spring both ends are fixedly connected with mounting seat and sliding sleeve bottom respectively, the side wall of one end of air pipe insertion cavity is equipped with the air hole being communicated with air pipe hole hole.The utility model has the beneficial effect that in the process of dismounting vacuum milling clamp tooling, the automatic switching of suction pipeline opening and closing can be realized, and then the vacuum adsorption operation to part is more convenient and fast, and work efficiency is improved.

This utility model relates to the technical field of circuit switches, specifically to an auxiliary switch. It includes a base, a top cover, and a rotating shaft. Multiple sets of circuit switching devices are installed between the base and the top cover, stacked together. Each circuit switching device includes a rotating wheel, a copper wire connecting piece, a movable contact piece, and a plastic base. The copper wire connecting piece is fixedly mounted on the plastic base and has a wire contact end and a first contact point. The wire contact end is located on the outside of the plastic base, and the first contact point is located on the inside of the plastic base. The movable contact piece is movably mounted on the plastic base and moves linearly. The advantages of this utility model are that it achieves various speed settings at low cost, has fast and precise switching speed, and possesses strong arc extinguishing capabilities, making it suitable for high-current circuits.

The utility model discloses an encoder with a press locking function, which comprises an encoding input module and a circuit contact module, and the encoding input module is arranged at the upper end of the circuit contact module; the circuit contact module is composed of a second shell, a base, a pressing locking mechanism and a circuit contact mechanism, the second shell, the pressing locking mechanism and the circuit contact mechanism are all installed at the upper end of the base, meanwhile, the pressing locking mechanism and the circuit contact mechanism are arranged in the second shell, and the circuit contact mechanism is internally provided with two sets of communication circuits; the pressing locking mechanism is used for switching two groups of communication circuits in the circuit contact mechanism; the pressing stroke of the structure is increased, a better pressing hand feeling can be brought, and switching of multiple groups of circuits is also realized, so that the encoder function can better meet multiple use functions.

This invention discloses a small water circuit switching structure, including a main body with a water inlet channel, a water distribution chamber, and at least two water outlet channels that can cooperate with each other. It also includes: a switching disc disposed within the water distribution chamber, capable of axial and radial movement within the chamber, and able to open and close the water inlet of the water outlet channels; a guide post disposed around the periphery of the switching disc; a first guide inclined surface located around the periphery of the switching disc, with the guide post engaging with it; a second guide inclined surface located around the periphery of the switching disc, with the guide post engaging with it; and a spring engaging with the main body and the switching disc. The engagement of the guide post with the first and second guide inclined surfaces enables the switching disc to rotate. This switching assembly occupies a small space.

The present disclosure relates to a 5G or pre-5G communication system for supporting higher data transmission rates than 4G communication systems such as LTE. The present invention relates to a method and device for supporting voice handover in a wireless communication system and increasing service quality in a mobile communication system, and more specifically, to a method for a UE connected to a first network to communicate with a network in a wireless communication system, the method comprising the steps of: connecting a voice call to a second network; receiving, from a base station of the second network, a message including control information for controlling wireless access of the UE; and using the control information to determine the radio access technology (RAT) to be used and the PLMN to be accessed after the voice call is completed, wherein the first network and the second network communicate using different RATs, and the voice call is connected to the second network by circuit switching (CS).

This invention relates to the field of thermostat technology and discloses a ceramic-shaped snap-action thermostat, comprising: a temperature-sensing aluminum cover, the top of which is tightly fitted to a heating element, and a plastic bracket embedded inside the cover. The plastic bracket has a cavity inside and a receiving groove at its top, which is connected to the cavity. The thermostat housing, a thermistor, and a fuse are embedded in the cavity, and a thermally conductive ceramic plate is embedded in the receiving groove. This invention uses the thermally conductive ceramic plate to transfer heat to drive the deformation of a metal spring to initially disconnect the circuit. At the same time, it relies on the thermistor to collect the real temperature in real time, and cooperates with the drive component to lock the disconnection position of the moving contact plate. This avoids the problem of high-frequency circuit switching caused by the cooling and rebound of the circuit after the metal spring and ceramic plate separate to form a heat transfer break, significantly extending the service life of components such as the metal spring and moving contact plate, and greatly improving the temperature control accuracy and equipment operation stability.

The invention provides an intelligent electric shock prevention remote control method and system, and relates to the technical field of electric shock prevention. The method comprises the following steps: acquiring safety isolation voltages received by an intelligent power utilization controller at a plurality of moments in a previous monitoring period; determining a voltage fluctuation index according to the safety isolation voltage; according to the voltage fluctuation index, whether a standby circuit switching mechanism is started at the starting moment of the current monitoring period is judged; establishing communication connection with the intelligent power utilization controller through a mobile phone APP, and setting performance parameters of each level of distribution box; real-time parameters of each level of distribution box are collected in real time through a voltage sensor, a current transformer and a temperature sensor; according to the performance parameters and the real-time parameters, whether abnormal conditions are met or not is judged; and if the abnormal condition is met, triggering an anti-electric shock control mechanism. According to the invention, remote setting of performance parameters can be realized, an anti-electric shock control mechanism can be accurately triggered according to comprehensive real-time parameters, and the safety of power utilization is improved.

This invention discloses an automatic switching system, method, and drive circuit for an uninterruptible power supply (UPS) in the field of power electronics. It includes a power module for providing electrical energy to the system; a relay switch unit for controlling the switching of mains power input; an accelerated turn-off unit for accelerating the turn-off of the relay switch unit; a circuit switching unit for switching a high-current drive circuit to a low-current drive circuit after a predetermined delay; and a control module for outputting a high-level signal to control the circuit switching unit to switch the high-current drive circuit to accelerate the closing of the relay switch unit, and outputting a low-level signal to control the accelerated turn-off unit to accelerate the turn-off of the relay switch unit. This invention employs a delayed switching drive design and an accelerated turn-off unit, which significantly simplifies the power supply hardware design, reduces the power requirements of the auxiliary power module, and significantly shortens the relay turn-off time, ensuring the stability and reliability of the UPS during the switching process.

The invention provides a contact signal acquisition method and related equipment, a contact signal acquisition system provided by the scheme generates a test instruction through framework innovation and automatic control and computing equipment, and a control module automatically analyzes and executes the test instruction to control a contact signal test device to automatically complete probe contact and circuit switching, so that the test efficiency is improved. And an electronic measuring instrument is driven to automatically complete measurement. The whole process does not need manual intervention of gear switching, meter pen connection and reading recording. Original discrete and serial manual operation is effectively converted into a continuous and automatic process, the single test time is shortened from the minute level to the second level, the method is particularly suitable for a large-scale batch production environment, the test flux is improved by the order of magnitude, and the production bottleneck is effectively eliminated. Manual operation errors are thoroughly avoided, and the accuracy and reliability of test results are guaranteed. The control module accurately controls the selection and switching of the test circuit, and the possibility of misuse of gears or wrong wiring is completely eradicated from physical connection.

A switch-cycle current limiting protection circuit for output short circuit includes diodes D6, D5, D2, D9, D4, and D3, drive windings T2-2 and T2-3, resistors R4 and R7, transistors Q2 and Q1. This circuit prevents transistors Q2 and Q1 in the half-bridge circuit of the electronic transformer from being deeply saturated and burning out due to excessive current, thus achieving switch-cycle current limiting protection. Therefore, an electronic transformer with an output short circuit switch-cycle current limiting protection circuit can also achieve switch-cycle current limiting protection.

The application provides an optical circuit switch reconstruction scheduling training acceleration system and method based on a maximum network flow. A heuristic scheme is used to optimize the parallel dimension of distributed training and the grouping of training tasks, reduce the communication flow across an optical circuit switch (OCS), and then, under the optimal grouping, select the optimal OCS connection configuration at the corresponding moment based on a maximum network flow algorithm to accelerate the global training time. By using a heuristic pruning method to optimize the combination relationship of data parallelism, tensor parallelism and pipeline parallelism, and placing the training tasks according to the rack where the GPU is located and the OCS domain, the situation of high-frequency tensor parallel communication across the OCS can be reduced.

This invention relates to the field of low-voltage switchgear technology, specifically an automatic switching, energy-saving smart grid low-voltage switchgear and its switching method. The switchgear includes a cabinet, within which an automatic circuit switching device is installed. This device includes a base frame fixed within the cabinet, a first conductor connected to the main circuit on the base frame, and a second conductor connected in series with the first conductor. A first contact connected to an energy-saving module and a second contact connected to an emergency power supply line without energy-saving function are slidably mounted on the base frame. A rotating shaft is rotatably mounted on the base frame, and a conductor is mounted on the shaft. When the energy-saving module malfunctions or actively exits the energy-saving mode, this invention can automatically disconnect the energy-saving module from the main circuit and automatically divert the current to the emergency power supply line without energy-saving function, allowing the current to continuously supply power through the backup line without energy-saving function. This completely solves the common industry problem of "power system paralysis caused by abnormal energy-saving function."

The utility model discloses a charging pile personnel protection testing device, which comprises a variable frequency power supply, an adjustable load, a detection module, a switch module and an oscilloscope, and is characterized in that the variable frequency power supply is used for providing an adjustable power supply for a charging pile sample, and the adjustable load is used for simulating a real charging process; the detection module is connected between the output end of the charging pile sample and the input end of the adjustable load during testing, and comprises a grounding detection module, a high-impedance grounding fault detection module and a low-impedance grounding fault detection module; and the switch module is used for carrying out circuit switching among the grounding detection module, the high-impedance grounding fault detection module and the low-impedance grounding fault detection module. According to the utility model, simulation and detection of various faults can be directly, simply and conveniently realized in one set of device, and an automobile simulation device is provided at the same time.

This invention relates to the field of rail train technology, providing a pantograph contact force switching control circuit and method, and a rail train. The circuit includes: a contact network power supply system identification circuit, which identifies the current contact network power supply system and outputs the identification result; the power supply system includes at least DC power supply and AC power supply; a switching control circuit, which outputs a switching command based on the power supply system identification result; a control terminal of an air circuit switching valve group electrically connected to the switching control circuit, which switches to a first or second working position according to the switching command; and first and second pressure setting valve groups, the input terminal of the first pressure setting valve group being connected to the first working position and outputting a first preset contact force required for DC power supply; the input terminal of the second pressure setting valve group being connected to the second working position and outputting a second preset contact force required for AC power supply, both output terminals being connected to the pantograph lifting airbag. This invention achieves dynamic adaptation of contact force when the train is running on a DC / AC hybrid line.

The application discloses a circuit switching device of an alternating current distribution box, relates to the technical field of circuit switching of alternating current distribution boxes, and comprises a manual control module, an electric control module and an execution element, wherein the manual control module and the electric control module are connected with the execution element, and the manual control module and the electric control module can control the execution element to act, respectively, and the execution element is used for locking a main circuit breaker, locking a standby circuit breaker or locking the main circuit breaker and the standby circuit breaker simultaneously when acting. The application can adapt to complex and changeable power consumption scene requirements, realizes reliable management and control of main and standby circuit breakers in the alternating current distribution box, and fully guarantees the safe and stable operation of a power supply system.