141results about How to "Fix switching issues" patented technology

The invention discloses a dual heat-source heat-pump hot water device with an extremely simple refrigerating loop. The device is characterized by mainly comprising a compressor, a hot water condenser, a wind heat exchanger, a water heat exchanger, a four-way valve, a bidirectional throttle and the like, wherein a high pressure inlet of the four-way valve is connected with the outlet of the hot water condenser, and the other three ports thereof are connected with air inlets of the wind heat exchanger, the water heat exchanger and the compressor respectively; other ports of the wind heat exchanger and the water heat exchanger are connected with the bidirectional throttle; the exhaust port of the compressor is connected with the inlet of the hot water condenser, and is connected with high pressure air inlet of an electromagnetic pilot valve of the four-way valve; four functions of manufacturing hot water by utilizing water source or air energy and providing air-conditioning cool water by utilizing air-cooling or heating water can be realized by only switching the four-way valve, defrosting can be performed completely and quickly; and a water pre-heater is added to the device to reclaim the heat of waste hot water. The heat pump has the advantages of dual heat sources compensation and wide application range, has multiple functions, extremely simple structure, extremely convenient switching and over 5 of annual comprehensive energy efficiency ratio, and has great popularization value.

The invention relates to a communication switching method among different networks, which comprises the following steps of: sending a request for establishing a second link to a core network by a terminal through an access control device of a second network; and after completing the establishment of the second link, sending a request for releasing a first link to the terminal by the core network through an access control device in a first network. The invention has the advantages of providing and solving the technical problem of the processing of seamless switching of a multi-mode terminal between a WLAN (Wirele Local Area Network) network and a mobile wireless network in the prior art, and guarantees service quality and service experience of users during roaming. The invention provides a novel implementation system and method according to international standards of 3GPP (The 3rd Generation Partnership Project), 3GPP2, RFC (Request for Comments) and the like, which have easy implementation and capability of scale commercial popularization.

The invention discloses a timing trigger switching method based on ephemeris and user position calculation, and belongs to the field of low-orbit satellite communication. The working principle is as follows: (1) a gateway station receives a position and speed measurement report periodically sent by a user, (2) the gateway station calculates and judges a target wave beam/satellite/gateway station and a switching mode according to the ephemeris; (3) a delta t1 value is calculated according to the conditions of the source gateway station, the target gateway station and the switching mode, (4) a toff-treport value and a delta t2 value are calculated based on the ephemeris and the user position; (5) pre-switching judgment is carried out according to the calculated value; (6) if a pre-switchingcondition is met, a timer is established; (7), pre-switching is initiated by the gateway station according to the timing of the timer; and (8), a switching command is issued to a user by the gateway station after the timing of the timer (toff-treport-delta t1-delta t2). By means of the method, the low-orbit satellite system switching preparation stage depends on gateway station calculation, the terminal does not need to conduct neighbor cell/wave beam pilot frequency measurement, the switching problem of a small wave beam overlapping area is effectively solved, and meanwhile the method is widely applied to various scenes of the low-orbit satellite system.

The invention provides a call mode conversion method. The method comprises the steps that whether a call mode conversion condition is met is judged according to network environment parameters which are acquired in real time; and if the call mode conversion condition is met, a video call mode is converted to a voice call mode. According to the invention, a network environment is monitored in real time; the problem of video call switching in a poor network environment is solved; call can be continued; automatic seamless switching between video call and voice call is realized; and the user experience is enhanced.

The invention relates to an automatic switching method of circumscribed equipment of a television set. The method comprises the following steps: a. whether the present circumscribed equipment channel is in the state of opening is judged; if yes, the step b is executed; if no, the step d is executed; b. the circumscribed equipment channel is switched into the present working channel; c. whether the command of selecting the present working channel is received is judged; if yes, the switching is stopped; if no, the step d is executed; d. whether the present channel is the last channel in the channel monitoring sequence is judged; if yes, the first circumscribed equipment channel in the channel monitoring sequence is taken as the present circumscribed equipment channel and then the step a is executed; if no, the next circumscribed equipment channel in the channel monitoring sequence is taken as the present channel and then the step a is executed. The television set in the method can automatically judge which channel of the television the circumscribed equipment accessed by a user is in without being judged by the user.

The invention provides a non-ground network switching method and system without positioning capability of a terminal, and the method comprises the steps that M1, through information of a source air communication node, the source air communication node periodically calculates the service duration and service interruption time of a service provided by the source air communication node for the terminal in a service geographic region; m2, the source air communication node periodically sends a space information request to candidate air communication nodes in a broadcasting mode, one or more candidate air communication nodes feed back space information to the source air communication node, and the source air communication node selects a target air communication node for a ground terminal in theservice area according to the fed back space information; and m3, the target air communication node is switched to after the service of the source air communication node is interrupted according to aswitching command sent by the source air communication node. According to the invention, the switching problem of a large number of terminals without positioning capability in a 5G and B5G mobile communication system with integration of a ground network and a non-ground network is solved.

The invention relates to a motor train unit key data wireless transmission protection method based on a dual-mode navigation system, which belongs to the field of a high-speed motor train unit wireless communication protection method. The method comprises the following steps: respectively additionally arranging an AP wireless network and a communication device of a BDS Beidou navigation system for a motor train, respectively transmitting train key data to other motor train units or ground operation dispatching command centers according to bi-directional short messages of a priority sequence of AP wireless network, GPRS network and BDS Beidou navigation system, so that high cost performance and high efficiency of the AP wireless network and the communication advantages of BDS Beidou navigation system can be sufficiently utilized, and the wireless transmission timeliness and reliability of the motor train unit key data can be greatly improved. By adopting the method, data with lower requirement on timeliness is only transmitted by virtue of WIFI of AP wireless network when the motor unit train enters a station or enters a garage, and the data transmission pressure can be alleviated.

The invention discloses a code division multiple access (CDMA) system and an A17 interface compatibility realization method, belonging to the mobile communication technology field. The method comprises the following steps: in the CDMA system, a corresponding relation between a version number and an interface structure in an access network is configured; when A17 interface switching happens, a source access network and an object access network acquire version information of an opposite side respectively through message interaction; according to the corresponding relation between the version number and the interface structure, the source access network and/or an object access network compare/compares a self version with a version of the opposite side, if versions are inconsistent, one side of a higher version converts a sent A17 message into a format of a lower version to carry out sending, and converts an A17 message received by an access network of the lower version into the self version to carry out processing. According to the system and the method in the invention, an incompatible problem between different A17 interfaces in A17 switching between different access networks in the CDMA system is solved, and switching failure caused by incompatibility is avoided.

The embodiment of the invention discloses a communication system, a communication method and a storage medium, and relates to the technical field of ETC (Electronic Toll Collection), the communicationsystem comprises a plurality of road side units (RSUs), wherein the plurality of RSUs are separated with each other, and an OBU is provided with a satellite positioning module for providing satellitepositioning information; a positioning information calibration device used for providing auxiliary positioning information; and a control device used for obtaining calibration positioning informationaccording to the satellite positioning information and the auxiliary positioning information, and then switching to the corresponding RSU and OBU for information interaction according to the calibration positioning information. The system has the advantages that the low power consumption of the to-be-positioned terminal can be ensured on the premise that the vehicle positioning precision is ensured; the RSU is switched in a non-inductive manner in an interaction process of the RSU and the OBU; under the condition of continuous coverage of the RSU, the problem of how to switch the mobile vehicle within each coverage range is solved.

A direct-drive power generation control method for a sensorless permanent magnet motor. A full-order observer pole is moved to the left relative to a motor pole to obtain a unified feedback gain matrix, a method of setting estimated rotation speed initial value is adopted to allow the unified feedback gain matrix to adapt to the running of a rotated permanent magnet motor restarted in a sensorlessand the permanent magnet power generation control in the full working conditions. The rotated permanent magnet motor is restarted in the sensorless, the switching of the permanent magnet in the powergeneration process is controlled, and a method of setting the q-axis current reference value of a bus voltage regulator is adopted to suppress the impact current in the switching process. The direct-drive power generation control method can be stably operated in the total speed range, the feedback gain matrix does not need online switching in the restarted rotated permanent magnet motor and permanent magnet motor power generation running, and the switching impact current is small between different work conditions in the full speed range.

The embodiment of the invention provides a space-ground integrated mobile access authentication method and device, and the method comprises the steps that an air-based access point obtains the position change amplitude between a user terminal and the air-based access point, and obtains the change information of a user identity module relative to terminal equipment, wherein the user identity moduleis a device for storing an access identifier and a user certificate of a user, and the terminal equipment is a device for identifying the user identity module and receiving user authentication information; and performing access authentication on the user terminal based on the position change amplitude and the change information. Access identification information in the user identity module and information encrypted by a secret key in a certificate of the user identity module are compared with an authentication center database, so that authentication of a user is realized; and meanwhile, the problem of periodic network switching of the equipment caused by relative movement of an access switching router and the user terminal is solved, the access authentication program of the user terminalis simplified, and the access efficiency of the user terminal is improved.

The invention relates to a multi-user switching method based on business characteristics in the 5G network. The method comprises steps that a one's own switching message and a business characteristic type of initial user equipment are broadcasted, surrounding user equipment acquires the message and identifies a DPI (depth packet inspection) unit of an entity through one's own business characteristics to acquire the one's own business characteristic type, if the business characteristics and use characteristics of the initial user equipment are identical in types, a switching adding request is emitted, after confirmation of a present access router and/or a target district access router, adding to the switching process of the initial user equipment is carried out. According to the method, in combination with communication business continuity guarantee development requirements in the 5G network, on the condition that the present access router and/or the target district access router employs same processing modes for same business characteristics, e.g., equal bandwidth distribution, an improvement method is provided for small district users, generation of control signaling is reduced, and user QoS is improved.

The invention relates to a water machine automatic in filter element popping and water way switching. The water machine comprises a filter element, a ratchet component and a pressure component, the pressure component comprises an electromagnetic switch, the ratchet component comprises a ratchet seat and a pawl, one end of the pawl is hinged to a vertical rod which is perpendicularly connected withthe upper end of the electromagnetic switch, and the other end of the pawl is abutted against a clamping tooth portion on the upper-portion outer wall of the ratchet seat; a core bar of the electromagnetic switch extends and descends to control fixing and shifting of the pawl so as to enable the ratchet seat to be fixed or to rotate; the lower portion of the filter element is detachably connectedwith the upper portion of the ratchet seat, and a torsion spring is arranged at the lower end of the ratchet seat; a filter element base is arranged in the ratchet seat in a sleeved manner, a movablesliding seat is arranged in the filter element base in a sleeved manner, and a first spring is arranged between the bottom of the movable sliding seat and the bottom of the filter element base.

The invention provides a method for achieving an offline desktop under a desktop cloud environment. The method provided by the invention has the advantages that high consistency between a corresponding mirror image on a remote desktop virtual machine and mirror image data on a terminal can be effectively guaranteed when a user carries out switching between the remote desktop virtual machine and alocal virtual machine for office work, so that document data in the mirror image can be prevented from loss or inconsistency when the user carries out the switching, and the user can normally access the data on the virtual machines for daily office work no matter whether the terminal is offline or online.