Autel Robotics Co., Ltd.

Pax Computer Technology (shenzhen) Co., Ltd.

Huawei Technologies Co., Limited

Zte Corporation

Shenzhen Mindray Bio-medical Electronics Co., Ltd.

Black Sesame Technologies Inc.

Wei Qin

Shaowen Luo

Wei Chen

Xiaoxian Li

Peter B Schon

Haibo Chai

Gang Chen

Qinglin Tao

Zhitao Wang

Zhihua Lin

Aidan Gregory Hyde

Fu Zhao

Shixing Zhao

Chun Chit Kan

Tao Wei

Bangjian Ouyang

Guohua Huang

Yuhua Liu

Yufeng Guo

Chengzhen Jiang

Zhang Xiong

POS terminal

Embodiments of the present application relate to a battery equalization self-discharging circuit and an unmanned aerial vehicle. The circuit includes at least two battery cells and at least two battery cell equalization units, wherein the battery cell equalization unit includes a series circuit composed of a discharging load and a switch, its one end is electrically connected to one end of the battery cell, and the other end is connected to the other end of the battery cell; the battery cell connected adjacent to a second electrode of a battery is a third battery cell; the battery equalization unit of the third battery cell includes a third discharging load and a third switch; and the battery equalization circuit further includes a fourth switch and a current detection unit, and a second end of the third discharging load is connected to a second end of the third battery cell.

Battery equalization self-discharging circuit and unmanned aerial vehicle

Mobile payment POS machine

A wireless communication method includes after a master device establishes a wireless connection to a slave device, performing negotiation on sound effect processing The master device determines, based on indication information fed back by the slave device, whether joint sound effect processing can be performed between the master device and the slave device. If joint sound effect processing can be performed, the method includes performing adaptive sound effect processing on both master device and slave device sides.

Wireless audio system, wireless communication method, and device

POS machine

The disclosure provides a bus-based communication system, which comprises a bus controller, a first buffer, a bus redundant controller, a second buffer and a comparator. The bus controller is configured to receive a bus input signal and send a bus output signal. The first buffer is connected with the bus controller in parallel to receive the bus input signal, and is configured to output the bus input signal after a preset time, wherein the preset time is two or more duty cycles of the bus controller. The bus redundant controller is connected to an output terminal of the first buffer and configured to receive a bus output signal delayed by at least T cycles output by the first buffer and output a bus redundant output signal.

Bus-based communication system, system-on-chip and method therefor

Embodiments of the present invention relate to the field of charging technologies, and particularly to a charging method and apparatus, a charging device, and a charging system. The charging method is configured for charging a battery. The method includes: acquiring a number of charging cycles and a charging temperature of the battery; determining a target charging parameter according to the number of charging cycles and the charging temperature; and charging the battery according to the target charging parameter. By means of the method, the embodiments of the present invention can determine in real time a target charging parameter for charging a battery according to different aging degrees and temperature states of the battery, thereby improving the safety of charging.

Charging method and apparatus, charging device, and charging system

Embodiments of the present invention disclose a method and device for warning overdischarge of a battery, a battery and an aerial vehicle. The battery is configured to supply power to a moving platform. The method includes: acquiring a number of times of overdischarge damage of the battery, where the number of times of overdischarge damage is obtained based on minimum voltage values of the battery in previous discharge processes and a preset overdischarge judgment criterion, and the preset overdischarge judgment criterion is less than a voltage threshold of overdischarge of the battery; and giving a battery overdischarge warning according to the number of times of overdischarge damage of the battery.

Method and device for warning overdischarge of battery, battery and aerial vehicle

Embodiments are a multi-battery management apparatus and an unmanned aerial vehicle. The apparatus includes at least two batteries, a mutual-charging switch, a voltage conversion module and a microprocessor; each of the batteries is connected to the microprocessor, and each of the batteries is also connected to the voltage conversion module by the mutual-charging switch; and the microprocessor is also respectively connected to a control terminal of the mutual-charging switch and the voltage conversion module. In the present invention, when an abnormal battery of which an electric quantity does not meet the storage condition occurs, a corresponding mutual-charging switch is controlled to be switch on, so that a battery with a higher electric quantity in the abnormal batteries charges a battery with a lower electric quantity.

Multi-battery management apparatus and unmanned aerial vehicle

The present application provides a device battery and an unmanned aerial vehicle (UAV). The device battery includes: a battery microprocessor, an electrically erasable programmable read-only memory and a marking component. The battery microprocessor is connected to the electrically erasable programmable read-only memory, and the marking component is connected to the battery microprocessor and the electrically erasable programmable read-only memory. The marking component is configured to mark a storage address to which battery data is written last time. The battery microprocessor is configured to write battery data to the electrically erasable programmable read-only memory in a cyclic erasing writing mode according to the storage address currently marked by the marking component. According to the solution, an independent electrically erasable programmable read-only memory is added inside the device battery to store the battery data, which can improve stability and safety of battery data storage. In addition, a storage size of the memory can be flexibly selected according to actual requirements, to avoid a waste of storage resources and of occupied areas of the memory.

Device battery and unmanned aerial vehicle

The present invention provides a battery equalizing apparatus and method, and an unmanned aerial vehicle (UAV). The battery equalizing apparatus includes: a battery gauge configured to monitor battery level information of a battery in a static state, a battery equalizing circuit being disposed inside the battery gauge; and a microprocessor connected to a communication port of the battery gauge and configured to: acquire the battery level information monitored by the battery gauge, and calculate a pressure difference between cells of the battery in a static state according to the battery level information, and determine whether the pressure difference is greater than a pressure difference threshold; the microprocessor sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the equalizing circuit of the battery gauge to equalize the battery. Through implementation of the present invention, a space of a circuit board may be saved by using an internally integrated equalization function of the battery gauge, facilitating miniaturization of the battery.

Battery equalizing apparatus and method, and unmanned aerial vehicle

Mobile payment terminal

Smart payment terminal

A method of communication between a first apparatus and a second apparatus, and pertains to the field of communications technologies. The method includes receiving, by the second apparatus before the second apparatus is associated with the first apparatus, a radio signal from the first apparatus carrying a message frame, detecting rich media information in the message frame, and providing the rich media information on a user screen of the second apparatus to help a user make an association decision.

Communication method and apparatus for pr-association rich media exchange

The present application discloses a series-multiple battery pack management system, including: a plurality of series-multiple battery packs; a plurality of electric quantity measurement modules, respectively connected to the plurality of series-multiple battery packs to obtain parameter information of the plurality of series-multiple battery packs, and further obtain compensation parameters according to the parameter information; and a controller, respectively connected to the plurality of electric quantity measurement modules, and configured to manage the plurality of series-multiple battery packs according to the compensation parameters. By using the series-multiple battery pack management system of the present application, relatively accurate current electric quantity information and a relatively accurate current battery use status can be obtained, so that the battery electric quantity of the battery management system can be measured more accurately.

Series-multiple battery pack management system

Growing community of inventors

Shenzhen, China

Wei Qin