7results about How to "Expand communication range" patented technology

The invention discloses an interphone auxiliary rescue method and system based on rescue scene fall detection, and the method comprises the steps: obtaining rescue state collection information, carrying out the preprocessing, and constructing an operation environment data sequence, a communication state data sequence, and a motion state data sequence; constructing an anomaly detection model, and inputting the motion state data sequence to analyze abnormal motion state data in the real-time rescue task; performing fall detection on the target interphone user, and judging whether a fall condition exists or not; if the tumble condition exists, tumble risk assessment is carried out in combination with the tumble early warning information, and whether collaborative rescue needs to be carried out or not is judged; and if cooperative rescue needs to be carried out, interphones of other rescuers are searched in the current communication environment for cooperative rescue, and communication optimization is carried out in combination with the operation environment data sequence and the communication state data sequence so as to expand the communication range. Therefore, safety accidents caused by the fact that rescue workers cannot ask for help autonomously in emergency situations in rescue actions are avoided.

The invention discloses an anti-interference and anti-eavesdropping cooperative transmission method for a high-security wireless network, and relates to the technical field of mobile communication. The method is applied to a communication system comprising an information source, an information sink, an anti-brittle relay, an enemy jammer and an enemy eavesdropper, and the information sink comprises a primary user and a plurality of secondary users. A consensus signal is sent through an anti-brittle relay, a main user detects the working frequency band and the interference type of an enemy jammer by adopting a machine learning algorithm, and the working frequency band and the interference type are fed back to the anti-brittle relay through encryption broadcast; the anti-brittle relay performs deceptive coding on a source end signal based on the information, and transmits the coded signal to a corresponding channel through beam forming, so that the enemy jammer converts the coded signal into a temporary relay node and sends an available signal; and the primary user separates the mixed signals and restores source end signals through maximum ratio combination, and the secondary user realizes communication coverage expansion through the converted relay node. The method realizes resource utilization of interference, synchronously improves anti-interference and anti-eavesdropping performance, optimizes spectrum resource allocation, and is suitable for complex communication scenes with high security requirements.

The application discloses a kind of mobile control terminal, comprising: one or more touch modules, touch module is used to generate control instruction, control instruction can trigger air conditioning equipment to perform pre-configured operation;Bluetooth low power consumption module, bluetooth low power consumption module can work in broadcast mode, continuously send broadcast packet including control instruction;Wherein, broadcast packet is received and parsed by distributed control system in communication range;Distributed control system includes communication connected control device;Distributed control system is based on the signal intensity filtered and sorted based on parsed, selects target control device from it and sends target identification;Target control device sends the control instruction received from broadcast packet to the air conditioning equipment connected with communication;Also provide a kind of control device and a kind of air conditioning system.This application does not need to be matched, also does not need to be used in straight line unobstructed environment, and energy consumption is extremely low, battery dependency is low.

The invention discloses an Internet of Things instruction issuing method and device and a storage medium, the method is applied to an Internet of Things system, the Internet of Things system comprises an Internet of Things device, the Internet of Things device comprises a main device and at least one sub-device, and the method comprises the steps that the sub-device receives broadcasted information of a to-be-executed instruction and execution state data; in response to the information of the to-be-executed instruction, confirming that the to-be-executed instruction needs to be executed or has been executed, so that the information of the execution status bit corresponding to the sub-equipment in the execution status data can represent that the sub-equipment has executed the to-be-executed instruction, and obtaining updated execution status data; and broadcasting the information of the to-be-executed instruction and updating the execution state data, so that the master device confirms the execution condition of each sub-device on the to-be-executed instruction through the execution state bit corresponding to each sub-device in the updating execution state data. Through the above mode, the communication efficiency and expandability of the Internet of Things system can be improved, and the communication cost is effectively reduced.

The invention provides a mobile terminal peripheral module supporting centerless communication, relates to the technical field of wireless communication, and solves the problem of communication networking requirements of mobile terminals such as a mobile phone and the like under the condition that a mobile network is missing. Each peripheral module is at least connected with one mobile terminal, and the peripheral module and the mobile terminal are connected in a serial port communication mode; a plurality of peripheral modules connected with the mobile terminals are mutually connected through an LPWAN wireless communication protocol, and each peripheral module is used for bearing data message services and voice message services between the connected mobile terminal and other mobile terminals; the peripheral module has an adjustable wireless frequency range so as to be matched with frequency spectrum use limits in different regions; the peripheral module establishes communication with the mobile terminal after integrating a serial port protocol in a mode of applying an SoC chip, performs interaction of service data and realizes corresponding control logic; according to the invention, the user can still realize effective communication in a remote area without cellular network coverage or with poor coverage.

The invention discloses a mine monitoring communication system and method, and belongs to the technical field of wireless communication, the mine monitoring communication system comprises a radio frequency transceiver, a first node, a second node and a third node; the radio frequency transceiver is arranged in a vertical mine tunnel; the first node is deployed at a preset monitoring position in a mine; the second node is deployed in the wearable device; the third node is deployed at a transfer position between the radio frequency transceiver and the first node and a transfer position between the radio frequency transceiver and the second node; according to the invention, the first node and the second node are used for monitoring static and dynamic physical quantities respectively, and the third node is used for transferring to ensure comprehensive monitoring in a complex mine environment; in the uplink communication and downlink communication process, data transmission and state confirmation between nodes are realized, the reliability and coverage range of communication are enhanced, the accuracy and reliability of data are ensured, and the overall stability is improved; the problems of limited signal transmission distance and serious signal attenuation in a mine environment are solved.

A bracket for amplifying the antenna gain associated with an installable radio frequency identification (RFID) tag is disclosed. An example device includes a bracket and an RFID tag. The bracket has a base, a first zigzag amplifying arm, and a second zigzag amplifying arm. The first zigzag amplifying arm is connected to the base and extends away from the base along a first direction, and the second zigzag amplifying arm is connected to the base and extends away from the base along a second direction, opposite to the first direction. The RFID tag is mounted to the base of the bracket. The first and second zigzag amplifying arms are respectively configured to: amplify the antenna gain associated with the RFID tag; or increase the communication range associated with the RFID tag.