398 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 discloses a remote ignition control system for a release flare, and relates to the technical field of release flare control, the system comprises the following components: a fault detection module, a fault isolation module, a standby module, a redundant circuit switching module, a fault diagnosis module and a wireless communication module; by integrating multiple modules of fault detection, fault isolation, standby module and redundant circuit switching, fault diagnosis and wireless communication, comprehensive remote monitoring and management of the release flare ignition control system are achieved, when the system detects a fault, electrical connection of a fault component can be rapidly cut off, and the safety of the release flare ignition control system is improved. And the standby module or the redundant circuit is automatically switched, so that the continuous and stable operation of the system is ensured, the reliability and the safety of the system are remarkably improved, and the risk of production interruption caused by faults is reduced.

The liquid path system comprises a gas supply unit, a liquid supply unit, a liquid mixing unit, a gas-liquid path switching unit, a main flow channel unit and a waste liquid collecting unit, and the gas supply unit comprises a gas storage device, a main gas path assembly, a reagent bottle gas path assembly, a liquid mixing bottle gas path assembly, a high-pressure purging gas path assembly and a low-pressure purging gas path assembly; the liquid supply unit comprises a plurality of main reagent bottles and a plurality of transition bottles; the liquid mixing unit comprises a target liquid mixing bottle connected with the liquid mixing bottle gas path assembly, and a liquid inlet of the target liquid mixing bottle is connected with at least two transition bottles; the gas-liquid path switching unit is connected with a liquid outlet of the target liquid mixing bottle, the target transition bottle and the low-pressure purging gas path assembly. The main flow channel unit comprises a sealed reaction cavity connected with the gas-liquid path switching unit through a multi-path liquid separator, and a liquid inlet of the main flow channel unit is provided with a multi-way electromagnetic valve connected with the high-pressure purging gas path assembly. According to the liquid path system, different reagents can be switched without cross contamination, and a plurality of areas can be communicated at the same time for chemical reaction.

The invention discloses an interleaved parallel flyback micro inverter control method and device, and a readable medium. The method comprises the steps of obtaining a direct current voltage and a direct current of a photovoltaic module at an input end of a micro inverter, and performing maximum power point tracking calculation to obtain a reference output power; obtaining a power grid voltage instantaneous value and carrying out effective value calculation to obtain a power grid voltage effective value; calculating a grid-connected reference current effective value according to the reference output power and the grid voltage effective value; by setting a secondary side current overlapping factor and calculating and adjusting the switching frequency and the duty ratio, a secondary side current overlapping area is reduced to the greatest extent, and the peak value of the secondary side current can be reduced as far as possible, so that the current stress of a flyback diode and a power frequency flip circuit switching tube is reduced, and the grid-connected current quality is improved.

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 invention discloses a double-voltage adaptive rectification PFC (Power Factor Correction) circuit structure and an electric flame stove. The double-voltage adaptive rectification PFC circuit structure comprises an EMI (Electro-Magnetic Interference) filtering unit, a voltage doubling rectification unit, a full-bridge rectification unit, a circuit switching control unit, a startup protection unit and a power factor correction unit. According to the circuit switching control unit, through conversion of full-bridge rectification or voltage-multiplying rectification, adaptability to commercial power of two different voltages is achieved; according to the power-on protection unit, when 220V mains supply is input, after the circuit voltage is stabilized, the relay RLY2 is completely switched on, and soft start protection is achieved; according to the invention, the MOS tube Q1 / Q2 is alternately connected and disconnected in a time sequence, so that the inductor L2 stores energy or discharges, the capacitor C22 is charged or discharged, the power factor correction unit outputs stable high-voltage electricity to a rear-end circuit or a load, when the MOS tube Q2 is connected, the resistance is zero, the superposed high-voltage electricity is transmitted to the rear-end circuit when the potential of the inductor L2 discharges, and low-loss energy conversion is realized.

The invention discloses a single-magnet-ring dual-processing-circuit switching wide-range leakage current sensor and method. A magnetic core works in a deep magnetic saturation state based on a magnetic modulation principle and is used for sensing a leakage current signal; the square wave self-oscillation circuit is used for sending a square wave signal to the coil by utilizing the inductance effect of the coil; each of the two signal processing circuits comprises a filter, a proportional amplifier and a lock-in amplifier, and only amplification factors of the proportional amplifiers are different, and the proportional amplifiers are used for processing induced leakage current signals; and the microprocessor is used for analyzing and processing the signal output by the signal processing circuit. The system can monitor the insulation state of the energy storage system in real time, effectively improves the safety and reliability of the system, and is suitable for photovoltaic power generation, wind power generation and other application scenes related to the energy storage system.

The invention belongs to the technical field of power management, and particularly relates to an ultrasonic mode control circuit for limiting the lower limit of light load switching frequency. According to the invention, an ultrasonic mode control circuit is designed, and the ultrasonic mode control circuit is nested in the switching converter as an independent circuit and can monitor the switching period. When the switching period is close to the audio frequency range, the DCM state is forcibly quitted, and the flip point of the ZCD is adjusted through the loop to enable the inductive current to flow backward, so that the circuit balance is realized. According to the invention, the problem of noise interference of the current switching power supply converter in an extremely light load state is solved from the source. As the system load is gradually reduced, the circuit switching frequency is gradually reduced so as to improve the conversion efficiency. When the switching frequency is reduced to a designed lower limit threshold, the frequency is stable and does not continue to be reduced. The system has the advantages of a current mainstream control mode for improving light load efficiency, and solves the problem of noise during extremely light load.

An adaptive control method for a fault control-oriented economically-integrated medium-voltage grid-connected device with a silicon carbide (SiC) module, includes: calculating a three-phase bridge arm modulation wave and a fourth bridge arm modulation wave; obtaining a three-phase bridge arm neutral point clamped (NPC) circuit switching signal; obtaining a three-phase bridge arm NPC circuit output voltage; obtaining a fourth bridge arm NPC circuit switching signal; obtaining a fourth bridge arm NPC circuit output voltage; calculating a voltage-stabilizing active vector of each submodule of a cascaded H-bridge (CHB) circuit; obtaining a three-phase bridge arm CHB circuit switching signal; obtaining a fourth bridge arm CHB circuit switching signal based on the fourth bridge arm modulation wave, the fourth bridge arm NPC circuit output voltage, and the voltage-stabilizing active vector of each submodule of the CHB circuit; and performing adaptive control of a grid-connected device based on the CHB circuit switching signal.

According to the packaging structure applied to the full-bridge power module and the three-phase motor control board, the pin structure of the full-bridge power module is improved, and the six MOS chips are flatly laid so that the occupied area of a PCB can be reduced; in addition, effective monitoring of parameter states such as voltage and current can be achieved through the first pin, the second pin and the third pin, a fourth MOS chip, a fifth MOS chip and a sixth MOS chip in the lower bridge arm are arranged to be source electrode pins, and therefore voltage crosstalk generated in the circuit switching-on and switching-off processes can be prevented; the source electrodes of the fourth MOS chip, the fifth MOS chip and the sixth MOS chip in the lower bridge arm are also connected with the corresponding power supply negative electrode pins, and then the power supply negative electrode pins are connected through the internal lead, so that the complexity of the lead is reduced, and in addition, the packaging structure is relatively small in size and relatively high in reliability. And the size of the full-bridge power module and the three-phase motor control board can be reduced.

The invention discloses a self-adaptive cutting method and cutting teeth for a mining heading machine, and relates to the technical field of coal mine underground coal or rock roadway heading operation. The adaptive cutting method comprises the following steps: constructing a hardness identification source domain model, taking cutting current, voltage, arm vibration and torque signals of a laboratory as source domain signals, extracting features through a multi-layer convolutional neural network, fusing the features with a minimum absolute operator, and training; training in a laboratory by using a back propagation algorithm until the precision reaches the standard; migrating to a tunneling site, performing fine adjustment and updating on site signal input as a target domain model, and outputting hardness of a cutting object; the working modes of the cutting tooth are controlled according to hardness, the cutting tooth comprises a cutting tooth seat, an impact spring, a piston and the like, and an oil way is controlled to switch the working modes through a hydraulic control one-way valve and an electromagnetic reversing valve. The cutting mode can be automatically adjusted according to the coal rock hardness, and compared with a traditional fixed parameter cutting mode, the cutting efficiency can be greatly improved, cutting tooth abrasion is reduced, and energy consumption is reduced.

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.

In accordance with an embodiment, a UE receives, from a network device, a configuration of sounding reference signal (SRS) resources including eight antenna ports, a transmission comb configuration of the SRS resources, and a cyclic shift (CS) configuration of the SRS resources. The transmission comb is configured to indicate a comb value K. And K is one of 2, 4 or 8. The transmission comb configuration is also used to indicate a configured comb offset (k). K is an integer between 0 and K-1. The CS configuration is configured to indicate a CS location. And the UE maps each port of the eight antenna ports to a corresponding resource element (RE) on a corresponding CS (Circuit Switching) and a corresponding frequency domain, and the UE maps each port of the eight antenna ports to a corresponding resource element (RE) on the corresponding CS and the frequency domain. Within the SRS transmission bandwidth, the corresponding REs are a subset of the plurality of REs and are located per K REs, and there is one offset based on the configured comb offset (k). And the UE sends the SRS by using the eight antenna ports according to the mapping.

A switching power supply circuit includes: a switching circuit switching an input voltage; a first amplifier generating a first voltage; a first phase compensation circuit including a first capacitor and compensating for a phase of the first voltage; a second amplifier generating a second voltage; a second phase compensation circuit including a second capacitor and compensating for a phase of the second voltage; and a drive control circuit executing a switching operation according to the second voltage, wherein the switching power supply circuit operates in a first or second mode, the drive control circuit performs, in the first mode, the switching operation, and stops, in the second mode, the switching operation, and when returning from the second mode to the first mode, a specific voltage corresponding to an output voltage is supplied to the second capacitor and a predetermined voltage is supplied to the first capacitor.

A wireless power transfer device includes: a power transmitting resonant circuit including a power transmitting coil and a power transmitting capacitor; a switching circuit switching a state of the power transmitting resonant circuit between a resonant state and a non-resonant state; and a determination circuit determining whether a facing state in which the power transmitting coil faces the power receiving coil or a non-facing state in which the power transmitting coil does not face the power receiving coil is occurring. After determining that either one of the non-facing state and the facing state transitions to the other one, the switching circuit performs switching process to switch from either one of the non-resonant state and the resonant state to the other one within a voltage zero-crossing range including a voltage zero-crossing point and a current zero-crossing range including a current zero-crossing point of the power transmitting coil or power transmitting capacitor.

The invention discloses a voltage monitoring device and a monitoring method thereof, and relates to the technical field of voltage monitors, the voltage monitoring device comprises a monitor main body, a main monitoring module and an auxiliary monitoring module are arranged in the monitor main body, a loop switching mechanism and a locking mechanism are arranged in the monitor main body, and a wiring chamber is arranged on the upper end face of the monitor main body. A main loop terminal, an auxiliary loop terminal and a to-be-tested line terminal are arranged in the wiring chamber, a detachable wiring cover is arranged at the upper end of the wiring chamber, and the loop switching mechanism comprises a rotating shaft seat, a switching deflector rod, a push plate, a sliding energy storage box, a fixed base, a first motor and a lead screw. The loop switching mechanism is installed between the main loop terminal and the auxiliary loop terminal and used for circuit switching. The voltage monitoring device has the advantages of dual-module cooperative work, rapid automatic switching and intelligent fault diagnosis, and solves the problems that a traditional voltage monitoring device is inaccurate in data and difficult in fault positioning in a severe environment.

The invention relates to an electrical performance test system, in particular to an electromagnetic valve electrical performance test system. The equipment main control unit comprises a main control computer, and a display and a communication bus module which are connected with the main control computer; the communication bus module comprises an RS232 interface module and a network communication interface module; the test unit comprises a coil resistance test unit, an electrical parameter test unit and a plurality of voltage and current detection units which are connected with the network communication interface module, and a test circuit switching module which is connected with the RS232 interface module and the equipment main control unit; the coil resistance test unit and the electrical parameter test unit are connected with the test circuit switching module. And the voltage and current detection unit and the test circuit switching module are connected with the plurality of electromagnetic valves. Compared with the existing test equipment, different test equipment does not need to be replaced according to different test items, so that the test efficiency is improved, and the labor intensity of workers is reduced.

An electric circuit switching device includes a housing; an igniter configured to release a combustion gas upon actuation; a tubular space formed in the housing; a projectile having conductivity, including a base body positioned at a first position in the tubular space in an initial state, and configured to be projected in a predetermined projecting direction by energy of the combustion gas; and a pair of first conductor pieces provided inserted, in a spaced apart state, into the tubular space at a position closer to the projecting direction side than the first position. The projectile further includes a pair of protrusions protruding from the base body in the projecting direction. The pair of protrusions of the projectile projected upon actuation of the igniter respectively come into contact with the pair of first conductor pieces, switching the first electric circuit from an interrupted state to a conductive state.

The invention provides a verifiable training classification model in a mobile communication system and a classification method of the verifiable training classification model, relates to the technical field of cloud services, designs a cloud edge collaborative classifier training framework capable of protecting privacy, and safely outsourcing time-consuming operation to an ES (Extended Station) so as to reduce the calculation burden of SMD (Surface Mount Device) and CS (Circuit Switching). Meanwhile, the calculation efficiency of classification service can be improved, and the data volume is increased. Secondly, an algorithm library based on multi-key fully homomorphic encryption is further designed, and the algorithm library supports distance and comparison calculation operation of encrypted data. In addition, the algorithm library can also construct other privacy protection classifier training services in a modular mode. Finally, a classification method capable of verifying the training classification model in the mobile communication system is provided, and lightweight integrity verification is achieved. The SMD only needs to execute a simple online signature operation, and most of time-consuming offline operations are safely outsourced to an edge service, so that any encrypted aggregated data is ensured not to be replaced or tampered before being decrypted.

The invention discloses an intelligent energy scheduling method for an energy storage and charging direct-current coupling system, and the method employs a bidirectional buck-boost intelligent switching control module, a duty ratio optimization algorithm module, an intelligent control circuit switching module, a mode switching judgment algorithm module, a safety interlocking protection module, and a parameter interaction fusion mechanism. The method is used for realizing collaborative optimization control among algorithm modules, and comprises the following steps: transmitting voltage stability monitoring parameters from a bidirectional buck-boost intelligent switching control module to a duty ratio optimization algorithm module; the duty ratio change rate and the control stability parameter are transmitted to the safety interlocking protection module and the mode switching judgment algorithm module from the duty ratio optimization algorithm module, and the safety state information is transmitted to the intelligent control circuit switching module from the safety interlocking protection module. According to the invention, flexible, efficient and safe charging of the electric vehicles on different voltage platforms by the energy storage battery is realized, the real-time performance, the accuracy and the reliability of the system are considered, and collaborative optimization control is realized through a parameter interaction mechanism.

The invention relates to the technical field of power control equipment, in particular to a short-circuit-preventing power control box which comprises a box body, a monitoring mechanism is installed in the box body, the monitoring mechanism comprises a monitoring box, the monitoring box is fixedly installed at the bottom of an inner cavity of the box body, and a fixing seat is fixedly installed at the top of the monitoring box. A temperature sensor is fixedly installed at the top of the fixing seat, the main wire is fixedly installed in the fixing seat, first connecting wires are fixedly installed at the two ends of the main wire, the circuit switching mechanism is installed at the two ends of an inner cavity of the box body, and the circuit switching mechanism comprises two first supports. Through the arrangement of the monitoring mechanism, the short-circuit condition of the whole circuit can be monitored, once short-circuit hidden dangers occur, an alarm or a signal can be quickly sent out, maintenance personnel can know the short-circuit hidden dangers in time and take measures, and the situation that short-circuit faults further develop into serious electric power accidents is avoided.

The invention relates to the field of electric power storage equipment, in particular to an electric power storage device based on grid-load-storage integration, which comprises an electric power switching storage cabinet, the electric power switching storage cabinet comprises a cabinet body, a plurality of second mounting racks are mounted on one side in the cabinet body, and a plurality of first mounting racks are mounted on the other side in the cabinet body. A vacuum cylinder is installed in the middle of the second installation frame, a branching cylinder is arranged in the vacuum cylinder, the bottom of the branching cylinder penetrates through the middle of the bottom end of the vacuum cylinder, a fixing plate is installed on the upper portion of the periphery of the branching cylinder and fixedly connected to the upper middle portion in the vacuum cylinder, and a plurality of second contact pieces are arranged on the inner side of the branching cylinder. Uniformly distributed lower interfaces are formed in the outer side of the bottom of the tapping cylinder, a rotating cylinder is rotationally connected to the upper portion in the tapping cylinder, and a power connection ring is installed on the lower portion in the rotating cylinder, circuit switching can be automatically achieved according to the charging condition of the power storage module, power waste is avoided, and damage to the power storage module due to continuous charging is reduced.

The invention relates to the technical field of low-voltage switch cabinets, and particularly discloses a drawer type low-voltage switch cabinet which comprises supporting legs, a drawer frame is fixedly connected to the tops of the supporting legs, an electric control assembly is arranged on the inner side of the drawer frame, and a switch assembly is installed on the front face of the electric control assembly. The back surface of the inner side of the drawer frame is fixedly connected with a connecting switch; in the process of needing circuit switching, a user firstly pushes the electric control main body, then drives the rotary transmission rod and the rotary positioning shaft to rotate by rotating the rotary handle, and then drives the positioning sensing assembly, the first buffer assembly, the second buffer assembly and the contact switch assembly to rotate; when the touch control positioning groove is opened, the contact plate rotates from one side of the touch control positioning groove to the other side, so that a circuit is switched from one side to the other side, and when the contact plate is far away from the other side, the circuit on the other side is disconnected, so that the two circuits cannot be opened at the same time, and a user can operate conveniently.

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.

Generally disclosed herein is an approach for optimizing routing strategy to tolerate faults in a toroidal network topology including, but not limited to, N-dimensional mesh, torus, and twisted torus. The approach may include balancing a load for a specified input traffic pattern operating offline or online. The approach may also include an optimization enhancement technique specifically applicable to symmetric, dynamically composable toroidal networks based on a set of centrally connected circuit switches.

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.

To achieve a scalable call environment at low cost without increasing the complexity or size of a device.SOLUTION: A line exchange switches lines between a first terminal, which is an input-side terminal, and a second terminal, which is an output-side terminal. The line exchange includes: a first interface unit that is an input-side interface for connecting to the first terminal, the first interface unit packetizing voice data received from the first terminal in predetermined units and outputting the packetized packet data; a packet switch unit that routes the packet data output from the first interface unit; and a second interface unit that is an output-side interface for connecting to the second terminal, the second interface unit having a clock matching unit that writes the routed packet data to a data buffer and reads out the written packet data at a read timing indicated by a time margin value determined based on delay and / or fluctuation of the packet switch unit.SELECTED DRAWING: Figure 1

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.