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

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 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 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 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 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 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 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 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.