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35results about How to "Reduce terminal power consumption" patented technology

Antenna switching method, terminal and compute readable storage medium

The invention provides an antenna switching method, a terminal and a computer readable storage medium. The antenna switching method is applied to the terminal with at least three groups of antennas; when an antenna switching condition is satisfied, an antenna switching control module at the terminal periodically acquires at least one communication performance parameter of each group of antenna in communication with a main transceiving access, wherein at least one communication parameter is acquired by a diagnosis service module or a radio frequency driving module; the communication performance parameters at the same type of various groups of antennas are respectively compared; a target main antenna and a target auxiliary antenna are selected from at least three groups of antennas according to a comparison result, and the residual antenna is the idle antenna; the communication performance of the target main antenna is greater than and equal to other all antennas; the target main antenna is controlled to switch to communicate with the main transceiving access of the terminal, and the target auxiliary antenna is controlled to switch to communicate with an auxiliary receiving access; when the performance of the antenna in working is deteriorated, two groups of antennas with good communication performance are reselected as the main antenna and the auxiliary antenna to participate in the work; the terminal power consumption is lowered, and the user experience is promoted.
Owner:NUBIA TECHNOLOGY CO LTD

Narrowband Internet of Things wireless transmission method based on interference alignment technology

The invention provides a narrowband Internet of Things wireless transmission method based on the interference alignment technology and relates to the field of wireless communication. The method includes: a central control node selects transmission node pairs for cooperated transmission; the cooperated-transmission nodes simultaneously transmit frame synchronization signals and orthogonal pilot signals; multiple cooperated-receiving nodes performs synchronization and MIMO channel estimation; the central control node calculates a pre-coding matrix and an interference suppression matrix; the cooperated-transmission nodes uses the pre-coding matrix to transmit pre-coded information in a same-time and same-frequency manner; the cooperated-receiving node uses the interference suppression matrix to correctly receive useful information. The narrowband Internet of Things wireless transmission method has the advantages that same-time and same-frequency information transmission of NB-IoT transmission node pairs is achieved through the central control node and by using the interference alignment technology, system capacity and frequency spectrum efficiency are increased effectively as compared with that of a conventional point-to-point FDD and TDD transmission system, transmission time delay and terminal power consumption are lowered, and the massive link requirement of NB-IoT is satisfied.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Energy-saving transfer path selection method for user side in heterogeneous network based on D2D relay

The invention discloses an energy-saving transfer path selection method for a user side in a heterogeneous network based on a D2D relay. A relay link is selected in a classification manner by distinguishing a network type of a relay user. When a macro base station user is selected as the relay, the power consumption proportion of the macro relay user is controlled by adopting a minimum relay powerconsumption proportion method under the condition that the total power consumption of the relay link is ensured to be minimum; and when a small base station user is selected as the relay, the power consumption of the relay user is reduced by adopting the minimum relay power consumption proportion method under the condition that the lowest energy consumption required for normal communication of the link is ensured, at the same time, the effective rate of an uplink of the small base station relay user is adjusted, and the load of the relay user accessing the surrounding small base station is balanced. The method controls the total power consumption of the relay link, reduces the power consumption of the user terminal and balances the load of the surrounding receiving base station while meeting normal communication of the user, and is suitable for a real-time communication system.
Owner:江苏三台山数据应用研究院有限公司

Power down prevention method and device for memory card

The invention discloses a power down prevention method and device for a memory card. The method comprises the steps of enabling a terminal to continuously or intermittently send data to the memory card; enabling the memory card to feed back response data for the data sent by the terminal; enabling the terminal to judge whether the memory card is in a working state according to the response data; and enabling the terminal to continuously supply power to the memory card in the working state. The device comprises the terminal and the memory card arranged in the terminal. The terminal comprises a first data transceiving unit, a judging unit and a power supply unit, wherein the first data transceiving unit is used for sending the data to the memory card and receiving the response data fed back through the memory card; the judging unit is used for judging whether the memory card is in the working state according to the response data; and the power supply unit is used for continuously supplying power to the memory card in the working state. The memory card comprises a memory module and a second data transceiving unit for receiving the data sent by the terminal and feeding the response data back to the terminal. According to the technical scheme, the power down prevention method and device for the memory card are improved.
Owner:NATIONZ TECH INC

Catering lampblack online monitor system based on dual-mode communication

The invention discloses a catering lampblack online monitor system based on dual-mode communication. The system comprises a sensor interface circuit, a power supply management circuit, a main controlMCU circuit, a dual-mode communication module M5313 circuit and a liquid crystal display circuit, and the main control MCU circuit is connected with and controls the sensor interface circuit, the power supply management circuit, the dual-mode communication module M5313 circuit and the liquid crystal display circuit. According to the invention, a 2G and NB-IOT self-switching dual-mode communicationtechnology can be realized, the price of the communication module is not increased, the advantages of the 2G network and the NB-IOT network are extracted; the NB-IOT network is preferentially networked, the power consumption of the terminal is effectively reduced, and the high-gain high-penetrability deep coverage capability of the NB-IOT network is utilized to solve the problem that the restaurant to be monitored is automatically switched to 2G network communication in places such as basements where signals are difficult to reach, in urban and rural areas and without NB signals, so as to ensure the reliability of data transmission of the monitored restaurant in various environments.
Owner:北京云漫数据技术有限公司

Safety helmet timer scheduling method and system based on abnormal helmet removal record

The invention belongs to the technical field of Internet of Things and communication, and particularly relates to a safety helmet timer scheduling method and system based on an abnormal helmet removal record, and the method comprises the steps: setting an abnormal helmet removal safety frequency Ms and an abnormal helmet removal danger frequency Md, determining a first timing period adjustment factor according to the abnormal cap-off frequency N, the abnormal cap-off safety frequency Ms and the abnormal cap-off danger frequency Md recorded by the cloud platform, and obtaining the safety helmet reputation; obtaining the use condition of the safety helmet terminal in the current period and a safety helmet reputation factor to obtain a second timing period adjustment factor; adjusting the timing period according to the first timing period adjustment factor and the second timing period adjustment factor; the next period is carried out according to the adjusted timing period; according to the invention, the accuracy of abnormal cap-off identification is improved, the power consumption of the terminal is reduced, the working period of the timer of the terminal is adjusted by using the historical abnormal cap-off information, and the probability of safety accidents caused by non-standard wearing of safety helmets or overlong use period of the safety helmets is reduced to the maximum extent.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A network connection method, device and mobile terminal

The invention discloses a network connecting method and device and a mobile terminal. The method comprises the steps that a collection of accessible networks with signal intensity values meeting a preset threshold value is obtained; when it is determined that network connection with the accessible networks in the collection of accessible networks succeeds, preset resources are downloaded based on network connection; corresponding downloading speeds achieved when the accessible networks are used for downloading the preset resources are obtained; a target accessible network is determined from the collection of accessible networks according to the downloading speeds; current network connection is switched to network connection established with the target accessible network. According to the network connecting method and device and the terminal, through combined analysis of the signal intensity values and the network downloading speeds, the target accessible network is determined for connection and communication, so that compared with the mode of constantly carrying out network access tries only based on signal intensity, the network speed of the terminal is greatly increased, and the power consumption of the terminal in network connection is reduced.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Energy-saving transfer path selection method based on d2d relay for client in heterogeneous network

The invention discloses a method for selecting an energy-saving transfer path based on D2D relay for a user terminal in a heterogeneous network. The relay link is classified and selected by distinguishing the network type to which the relay user belongs. When selecting macro base station users as relays, use the method of minimum relay power consumption ratio to control the power consumption ratio of macro relay users while ensuring the lowest total power consumption of relay links; select small base station users as relays When , under the condition of ensuring the minimum energy consumption required for the normal communication of the link, the method of minimum relay power consumption ratio is adopted to reduce the power consumption of relay users, and at the same time adjust the effective rate of uplink of relay users of small base stations, Balance the load of relay users accessing surrounding small base stations. The present invention controls the total power consumption of the relay link under the condition of satisfying the normal communication of the user, reduces the power consumption of the user terminal and balances the load of the surrounding receiving base stations, and is suitable for the real-time communication system.
Owner:江苏三台山数据应用研究院有限公司
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