55results about How to "Ensure communication stability" patented technology

Dual (redundant) operation support servers are used to improve the reliability of a video conferencing system and ensure the stability of communication. Switching automatically one operation support server to another enables a video conference to be smoothly continued without interruption. Multiple operation support servers are provided, each including a synchronization function which synchronizes site connection information and live camera information between the operation support servers and prevents an operation support server in a standby state from writing live camera information in a folder for each site. Each site PC 14 includes an automatic server change function which, when an operation support server 11 in service fails, switches connection from the operation support server 11 to an operation support server 12 in a standby state. When the operation support server in service fails, the operation support server in a standby state writes live camera information into a folder for each site and each site PC changes connection from the operation support server that was in service to the operation support server in a standby state.

The invention discloses a signal processing method for bound digital subscriber line channels, and a device and a system both adopting same, relating to the communication field. The signal processing method provided by the embodiment of the invention can lessen the FEXT (Far End Crosstalk) among the bound channels, and comprises the following steps: sending a pilot frequency sequence to a receiving end through the bound channels; receiving clipped error fragments from the receiving end through the bound channels; obtaining clipped error sample by the receiving end according to the error of received signals, and obtaining clipped error fragments through fragmentizing a clipped error; integrating the received clipped error fragments into the clipped error; and calculating a pre-coding coefficient (used for pre-coding signals before sending) according to the pilot frequency sequence and the integrated clipped error. The embodiment of the invention is applied to the digital communication system, and when the sending terminal transmits data to the receiving end through the bound channels, the FEXT among the channels is eliminated.

The invention provides a communication self-detection method and system, an intelligent cabinet, a communication detection method and system, and a server. The communication self-detection method andsystem are applied to the intelligent cabinet comprising a communication module, and the communication detection method and system are applied to the server that is cooperatively used with the intelligent cabinet. The communication self-detection method comprises the following steps: S102, judging whether a heartbeat signal periodically sent by the server is received according to a heartbeat protocol, and if yes, skipping to S104; if not, skipping to S108; S104, starting a new round of timing; S106, feeding back the heartbeat signal to the server; S108, maintaining the current timing, and obtaining a waiting time; S110, judging whether the waiting time reaches a first preset time, and if yes, skipping to S112; and S112, restarting the communication module. By adoption of the communicationself-detection method provided by the invention, the communication stability of the system under long-term operation is ensured, the operation and maintenance costs are reduced, and the operation state of the intelligent cabinet can be monitored in real time.

The invention provides a method for connecting a wireless signal dead zone node to achieve meter reading. A micro power wireless communication node in which communication fails in a wireless signal dead zone is replaced with a double-module communication module which has an electrical line carrier communication unit and a micro power wireless communication unit, after the double-module communication module receives data, a communication channel is selected for sending the data according to different conditions, and if the data is passively returned to be sent to the node, the data is returnedto a data frame through an original path according to the channel for receiving the data; if the data is sent to other nodes in a relaying mode or actively reported, a neighbor node table is utilizedto find out the successful communication frequencies of a target node and different communication modes of the double-module communication module to determine the sending channel, and which communication channel is adopted to send the data is determined by which communication channel has the largest successful communication frequency. When the node does not exist in the neighbor table or the successful communication frequencies of different communication channels are equal, a wireless communication channel is preferentially adopted to send the data, and therefore the sending and receiving success rate is increased.

The invention discloses an underground mine operator safety management system capable of real-time monitoring of the safety status of operators in a mine. The underground mine operator safety management system comprises a plurality of smart safety helmets for the operators to wear, a control center, a communication network, an environmental monitoring device, wherein the control center is used forsafely managing all the operators corresponding to the smart safety helmets; the communication network communicates with each smart safety helmet and the control center and is provided with a plurality of wireless AP units; and the environmental monitoring device is arranged inside the mine and used for monitoring the environment inside the mine, wherein the smart safety helmets are automaticallyin communication connection with the wireless AP units within a set distance during wearing and using of the smart safety helmets by the operators, so that the control center obtains personnel information of the corresponding operator in real time; and when the smart safety helmets are close to the environmental monitoring device to a certain range, the smart safety helmets are automatically in communication connection with the environmental monitoring device to obtain the environmental condition information in a monitored area.

The invention discloses an antenna control system, a ground control terminal and a control method thereof. The antenna control system comprises a controller, a positioning module, a signal transceiver, an antenna switching module, a tracking antenna and an omnidirectional antenna. Under control of the controller, a directional antenna realizes real-time tracking on an aircraft. The omnidirectionalantenna or the directional antenna is switched according to the real-time relative distance between the antenna control system and the aircraft; when the real-time relative distance is smaller than apreset threshold, the omnidirectional antenna is switched to be used; when the real-time relative distance is larger than the preset threshold, the directional antenna is switched to be used; the directional antenna is maneuverable, the large forward gain of the directional antenna can be fully exerted, the omnidirectional antenna and a tracking antenna are integrated, the communication stabilityat any distance and mutual interference resistance can be ensured, the expansion is strong, and the communication quality between the aircraft and the ground control terminal in the complete processof take-off, flight and landing can be ensured.

The invention provides a power adjustment method and device, an intelligent switch and a storage medium. The power adjustment method comprises the steps of detecting a received response signal, acquiring the signal intensity of the response signal; And determining, according to the signal strength of the response signal, a transmit power of the next transmit interrogation signal. According to themethod and the device, the transmitting power of the inquiry signal can be adjusted at any time according to the intensity of the response signal instead of transmitting the inquiry signal with fixedtransmitting power, so that the cruising ability of the battery is improved while the communication stability is kept.

The invention discloses an unmanned aerial vehicle (UAV) system based on 5G network remote control. The system comprises a UAV, 5G CPE, a server, and a handheld control terminal. The system disclosedby the invention has the advantages that environmental conditions, flight conditions and signal intensity conditions are comprehensively considered, and a feedback processing mechanism is establishedto pertinently provide different countermeasures and solutions, that is, the UAV technology is integrated with the 5G network communication technology and a processing mode of the 5G network communication technology, a double-promotion solution is adopted, and the communication stability and the antijamming capability of the system are improved based on both 5G and an analysis process; and duringestablishment of the feedback processing mechanism, information is collected to form data aggregates, so that corresponding suggestions can be directly provided when a same situation happens again, and the purposes of efficient intelligent learning and simple optimization, higher overall data processing smoothness and better overall data processing effects can be further achieved under the premiseof high communication stability.

The embodiment of the invention provides a communication method and device for accessing a private network. The method and the device are applied to the articulated naturality web. One articulated naturality web service end is connected with one user server. one articulated naturality web cat client is connected with one user terminal. The user terminal is bound with a sub-virtual terminal in thearticulated naturality web cat client and maps a sent internet data packet into an articulated naturality web data packet in the articulated naturality web cat client through NAT. The sub virtual terminal can be used as a transmission tool in the articulated naturality web; sending the articulated naturality web data packet to an articulated naturality web modem server. Then the articulated naturality web data packet is restored into an Internet data packet by the articulated naturality web server and is sent to a connected user server, so that a user can respectively access an articulated naturality web, an Internet, an IP private network and the like through a set of network, and the expenditure of network deployment and the waste of resources are greatly reduced.

The invention discloses a multi-link switching robot communication method and system, and the method comprises the following steps: obtaining the state parameters of to-be-transmitted data, wherein the state parameters comprise the data size and / or delay tolerance time; selecting a target transmission strategy from a plurality of preset transmission strategies with different timeliness according to the state parameters; and sending the to-be-transmitted data to target receiving equipment through the target transmission strategy. According to the invention, multiple data transmission strategiesare combined, and the data transmission strategies are switched according to the data volume of the to-be-transmitted data and the real-time requirement, so that the information transmission efficiency is improved and the response time is shortened while the communication stability is ensured, and thus the working efficiency of the mobile robot is improved.

The invention discloses a ship intelligent navigation control system stable and reliable in information transmission, which comprises a ship end system, a communication link, a shore end system and an intelligent monitoring device, and is characterized in that the ship end system and the shore end system realize data receiving and transmitting sharing through the communication link, and a data basis is provided for realizing intelligent navigation, energy consumption management, fault diagnosis and remote control functions of a ship; the communication link comprises a ship-end communication terminal arranged on the ship-end system and a shore-end communication terminal arranged on the shore-end system, and communication link switching devices are arranged between the ship-end system and the ship-end communication terminal and between the shore-end system and the shore-end communication terminal. And the communication link switching device is used for evaluating the quality of the communication link and switching the communication link to the optimal communication link in a manual or automatic mode. The invention further discloses an operation control method of the system.

The invention discloses a marine ultra-long distance mobile communication signal automatic tracking method and a terminal. By controlling a communication antenna of which the type is a directed antenna to be in any tracking position, the signal receiving and transmitting directions are rotated to the direction in which the strongest mobile communication signal can be received, so communication antenna installed on a ship sailing on the sea can achieve ultra-long-distance mobile communication signal communication connection with a base station on the shore, and user terminal equipment on the ship can indirectly use a mobile communication network provided by the base station through the communication antenna. Moreover, the strongest signal base station is locked by using the scanning antenna; a communication antenna is used to track the strongest mobile communication signal of the strongest signal base station at intervals in the navigation process of the preset navigation mileage; and the above process is repeated circularly, so that the communication antenna can establish and maintain a communication link with the strongest signal base station within each preset navigation mileage,and the communication stability between the communication antenna and the base station is ensured.

The embodiment of the invention provides a remote controller fault positioning system and a mining intrinsic safety type remote controller, the system comprises at least three mining intrinsic safetytype remote controllers and controllers respectively corresponding to the mining intrinsic safety type remote controllers and used for controlling a hydraulic support, and each mining intrinsic safetytype remote controller comprises at least two communication modules and a UWB positioning label; the mining intrinsic safety type remote controller is used for enabling the corresponding UWB positioning tags to start to send UWB pulse signals when one or more communication modules fail; each controller is used for receiving the UWB pulse signal through the correspondingly connected UWB positioning base station and calculating the distance between the corresponding UWB positioning base station and the UWB positioning label; and the corresponding controller is used for calculating the positioninformation of the mining intrinsic safety type remote controller with the communication fault according to the calculated and received distances. According to the invention, the communication reliability and robustness of the system can be improved, and the accurate positioning of the faulted mining intrinsic safety type remote controller can be realized, thereby guaranteeing the safety of an operator and the like.

The invention provides a self-adapting method of data transmission application based on a 2M-ring network. A central terminal and a plurality of base station terminals are taken as a lower layer through the 2M-ring networking while the data transmission application based on the 2M-ring network as an upper layer. The central terminal of the lower layer is provided with a TCP / IP adapter while the base station terminals are provided with serial port adapters, and the TCP / IP adapter communicates with the serial port adapters through the 2M-ring network. The central terminal of the upper layer is provided with a TCP / IP communication server which is jointly bridged with the TCP / IP adapter and the serial port adapters of the lower layer, and the TCP / IP communication server carries out communication management to each bridged object by taking an abstract virtual-link mode as mapping.

The invention relates to an optimization method and system for communication quality of an unmanned aerial vehicle. The method comprises the steps of: building a system model, determining a constraintcondition which should be satisfied by unmanned aerial vehicle communication quality optimization, wherein the constraint condition comprises a constraint condition of unmanned aerial vehicle line-of-sight communication; setting a sight distance link probability to be greater than a preset threshold value; and according to the constraint conditions, optimizing any one or more of unmanned aerial vehicle transmitting power, user association and scheduling and an unmanned aerial vehicle track, so that the minimum data rate of all the Internet-of-Things devices is maximized (equivalently, the minimum throughput of all the Internet-of-Things devices is improved to the maximum extent, and the communication quality is improved). According to the technical scheme provided by the invention, the influence of the sight distance link probability on the communication link is considered, so that the sight distance link connection of the unmanned aerial vehicle cannot be kept all the time when the unmanned aerial vehicle flies no matter whether the communication quality of the unmanned aerial vehicle is optimized by optimizing any one or more of the transmitting power of the unmanned aerial vehicle, user association and scheduling and the track of the unmanned aerial vehicle, and the communication stability is ensured.

The invention provides a broadcast system and belongs to the technical field of broadcast electronic devices. The broadcast system includes a control terminal, a broadcast system server, and a broadcast terminal, wherein the control terminal is connected to the Internet; the broadcast system server includes a voice gateway, a network card chip, and a first low-power wide-area network communicationmodule, and is connected to the public security alarm phone and the fire alarm telephone in the public telephone network through the voice gateway, and connected to the control terminal in the Internet through the network card chip; there is one or more broadcast terminals, and each broadcast terminal includes a second low-power wide-area network communication module and a codec; the second low-power wide-area network communication module and first low-power wide-area network communication module of each broadcast terminal are connected. The broadcast system server in the broadcast system maybe simultaneously connected to the public telephone network, the broadcast terminal and the Internet, and implement low-power wireless interconnection of the broadcast system server and the broadcastterminal through the low-power wide-area network communication modules.

The invention provides a service clock determination method and a service clock determination device and packet transport network equipment of PWE3 (Pseudo-Wire Emulation Edge to Edge), which are used for solving the problem that influence is caused to a service clock from jitter of an adaptive clock in PWE3 communication. The service clock determination method comprises the following steps of: detecting whether an adaptive clock used as a service clock of the PWE3 jitters; and if so, taking a local clock as the service clock of the PWE3. Through implementation of the invention, when the adaptive clock of the PWE3 jitters, the local clock is used as the service clock of a receiving side, so that the influence of the jitter of the adaptive clock on the service clock is avoided, and therefore the communication stability of a communication system applying a PWE3 protocol is ensured.

The invention provides systems and methods of multi-antenna emission, single-antenna receiving and multi-antenna transmission. The multi-antenna emission system comprises at least two antennas, at least two emission modules and a protocol layer demultiplexer, wherein each emission module converts a to-be-emitted data packet to wireless signals; the protocol layer demultiplexer comprises a check detection unit, a sorting unit and an output unit; the check detection unit detects whether the to-be-emitted data packet has a check bit and if not, a check bit is added; the sorting unit adds a sequence number bit to the data packet outputted by the check detection unit; and the output unit outputs the corresponding data packets to the at least one emission module for emission according to the sequence of the sequence number bits. The fast fading problem can be solved, the communication stability of an uplink communication system can also be ensured, occupancy of too many bands is not needed,a downlink communication system is not disturbed, and on the premise of not increasing the number of receiving antennas, the communication quality of the multi-antenna transmission system is ensured.

The embodiment of the invention provides a one-to-one network access method and device. The method and the device are applied to the articulated naturality web. One articulated naturality web serviceend is connected with one user server; one articulated naturality web cat client is connected with one user terminal; the user server is bound with a sub-virtual terminal in the articulated naturalityweb modem server side, and an Internet response data packet fed back for the articulated naturality web data packet is mapped into an articulated naturality web response data packet in the articulated naturality web modem server side through NAT; the sub virtual terminal can be used as a transmission tool in the articulated naturality web. The articulated naturality web response data packet is sent to an articulated naturality web modem client, and the articulated naturality web response data packet is restored into an Internet response data packet by the articulated naturality web client andis sent to a connected user terminal, so that the purpose that users can respectively access the articulated naturality web, the Internet, the IP private network and the like through one set of network is achieved, and the expenditure of network deployment and the waste of resources are greatly reduced.

The invention relates to a vehicle-mounted ad hoc network routing decision-making method in a hybrid network mode, a vehicle-mounted ad hoc network comprises a traffic road structure, vehicles and RSUs, a plurality of RSUs in wired communication connection in pairs are deployed in the traffic road structure, and the method comprises the following steps: 1) abstracting the traffic road structure into a directed graph; 2) obtaining vehicle driving data, and constructing a vehicle node moving behavior model; 3) acquiring two vehicles needing to communicate; 4) selecting candidate nodes and constructing a final communication link based on the communication range of each node, if the candidate nodes cannot be acquired, constructing the final communication link through the RSU, and if the RSU cannot be acquired, outputting a result that the destination node cannot communicate; in the step 4), the candidate node selection process comprises the step of eliminating unstable nodes possibly exceeding the node communication range in the future. Compared with the prior art, data packet transmission of a wired and wireless hybrid network is provided, and the reliability, low time delay and high efficiency performance of the vehicle-mounted ad hoc network are improved.

The invention discloses a network communication method, apparatus and device, and a storage medium. The method comprises the steps of receiving a cloud host startup instruction; allocating corresponding virtual operation resources to the service virtual machine corresponding to the cloud host starting instruction, and allocating a corresponding virtual network card to the service virtual machine;and controlling the service virtual machine to execute network communication through the corresponding virtual operation resource and the corresponding virtual network card. According to the method, the stability of the cloud service is relatively ensured, and the service response delay of the cloud service is reduced. In addition, the invention further provides a network communication device andequipment and a storage medium, and the beneficial effects are as described above.

The embodiments of the invention provide a speaking right distribution method in a group calling service, a cluster core network and a dispatching desk. The distribution method comprises the followingsteps of according to speaking right authorization confirmation information sent by the dispatching desk, starting a time limit timer corresponding to the speaking right of the dispatching desk in abroadband cluster communication system and sending the occupation information of the speaking right to other user terminals in a group where the dispatching desk is located; and after the time limit timer ends timekeeping, sending speaking right prompting information to the dispatching desk so that the dispatching desk acquires the residual occupation time of the speaking right according to the speaking right prompting information. In the invention, when the speaking right is about to be overtime, the dispatching desk is timely and accurately prompted, the speaking right of the dispatching desk can be intelligently distributed, and the communication stability and the reliability of the group calling service in a broadband cluster communication system are guaranteed.

The invention relates to a wireless looped network communication device and system, the wireless looped network communication device comprises two or more management equipment side switches, and the management equipment side switches are used for forming a management side looped network with switches accessing management equipment. The device further comprises one or more terminal side looped networks, each terminal side looped network comprises three or more terminal side switches forming the looped network, the management equipment side switch is used for being connected with the terminal side switches in one terminal side looped network in a one-to-one correspondence mode, and the terminal side switches are further used for being connected with terminal equipment. Based on this, through the composition of one or more than one terminal side looped network and the cooperation of the management equipment side switch, a plurality of communication links are provided between the terminal equipment and the management equipment, the problems of safety and reliability in a star-shaped or chain wireless local area network networking mode are avoided, and the communication quality and stability are ensured.

The invention provides an Internet-of-Things gas meter power supply management detection method. The method comprises the steps: formulating voltage specification requirements; detecting a power supply voltage through AD sampling; under the conditions that the sampling voltage is detected to be inconsistent with a current display voltage level for three consecutive times and the detected samplingvoltages are in another level voltage state, executing voltage switching and starting a corresponding task state machine, reporting a meter state actively by a gas meter under the condition of switching to an under-voltage state, carrying out warning on a background system, informing a user of battery replacement, and making a corresponding error code prompt by a meter end of the gas meter; underthe condition that the gas meter is in communication, starting power supply voltage detection at a set frequency, and increasing a hysteresis voltage design and a high starting voltage value. According to the method, the abnormal condition of the power supply capacity of the power supply can be predicted to the greatest extent and the communication stability of the gas meter is ensured; when the power supply capacity of the power supply is detected to be insufficient in periodic monitoring, an alarm is given in time to remind a user to replace the battery, so that normal gas use of the user isprevented from being influenced.

The invention discloses an equipment state monitoring method, an equipment state monitoring device and a readable storage medium, and the method comprises the following steps: setting one piece of equipment as monitoring equipment, and setting the other pieces of equipment as monitored equipment; enabling the monitoring equipment to acquire state information of the monitored equipment connected with the gateway unit; in a set condition, if the activity information is obtained, determining that the state information of the monitored equipment is online, otherwise, determining that the monitored equipment is offline; and the monitoring equipment updates the state information of the monitored equipment in the monitoring list and the time corresponding to the state information, and sends the state information of the monitored equipment to the gateway unit. In the process, only when the state information of the monitored equipment is changed, the monitoring equipment is communicated with the gateway unit, so that the data volume of communication in a network is greatly reduced, the conflict between heartbeat data and a normal communication command is reduced, the change of the equipment state can be quickly identified, and the communication stability of normal commands is ensured.

The invention relates to a construction management system of a smart meter. The construction management system comprises a master control device, a bridging electric meter and an auxiliary electric meter. The master control device is connected with the auxiliary electric meter and the bridging electric meter through wireless communication. When the master control device determines incapability of realizing wireless communication with at least one in the auxiliary electric meter and the bridging electric meter, the bridging electric meter is connected with the master control device through wired communication. The bridging electric meter is connected with the auxiliary electric meter through wireless communication so that the master control device is connected with the auxiliary electric meter through the bridging electric meter.

The invention relates to a linking system for an extractor hood and a kitchen range and a linked communication method. The kitchen range and the extractor hood are equipped with infrared transceiver devices and radio-frequency transceiver devices, treatment measures of tightly arranging an infrared emitting device and an infrared receiving device in each infrared transceiver device and isolating through a light path are taken, so that a signal interference problem while the kitchen range or the extractor hood emits an infrared signal is avoided; moreover, the controllable characteristic of theinfrared signal direction is further utilized to timely prompt that the infrared signal is shielded; a combined communication way of infrared communication and radio-frequency communication is adopted, so that communication connection between the kitchen range and the extractor hood is further matched by utilizing radio-frequency communication after the kitchen range and the extractor hood establish infrared communication connection, and therefore, radio-frequency communication matching errors are avoided. A linking processor in the kitchen range can timely switch between a primary communication way and a secondary communication way between infrared communication and radio-frequency communication according to a communication success or failure condition, so that communication quality andstability during linkage of the extractor hood and the kitchen range is guaranteed.

The invention discloses a wifi connection establishment method and related equipment, and the method comprises the steps: carrying out the wifi channel scanning, so as to determine a first parameter value which is used for evaluating the quality of a communication environment between electronic equipment and a first AP; if the first parameter value is within the first range, setting the frequencyband bandwidth of the electronic equipment as a first frequency band bandwidth; and establishing wireless connection with the first AP. By adoption of the embodiment of the invention, the data transmission speed can be improved under the condition of a good communication environment.