Methods and systems for reliable broadcasting that use re-transmissions, in a multi-hop, time-slotted wireless network, is presented. The methods and systems evaluate the trade-off between power consumption and communication reliability, and are consequently able to provide increasing degrees of robustness for broadcasts in the wireless network. Embodiments of the present invention are able to incrementally use re-transmissions, therein trading-off battery ...

A battery pack includes: a battery assembly including a plurality of batteries; a fluid drive member driving a fluid which cools the battery assembly; a housing that houses the battery assembly and the fluid drive member; and a beam provided integrally with a bottom wall of the housing to support the battery assembly from a lower side. A circulation passage ...

A device of the present disclosure includes an electronic component, a metal plate, a housing, and a wavelength selective heat radiating member. The metal plate is thermally coupled to the electronic component. The housing houses the electronic component and the metal plate. The wavelength selective heat radiating member is mounted on a surface of the metal plate, so as to ...

A portable battery pack comprising a battery enclosed by a wearable and replaceable pouch or skin is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be molle-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery ...

A secondary battery packing case structure is provided, where a first joint portion that protrudes outward and a first embedded block are formed on a side surface of the case, a second joint portion that protrudes outward and a second embedded block are formed on another side surface opposite to the foregoing surface, and the first joint portion and second ...

Disclosed is a wireless diagnosis system power supply, which is not connected with an external power supply, and comprises a shell (1), a battery pack (2) provided within the shell, an electrical module (3) connected with the battery pack to adjust the voltage and the current, and a cable handle (4) connected with the electrical module. The power supply provides independent power supply directly ...

A battery controller used in an electronic device supplied with electric power from a battery pack including a rechargeable battery includes a battery monitor for monitoring remaining battery charge in the rechargeable battery, and a power supply controller. The battery monitor issues an alarm when the remaining battery charge lowers to a threshold or below, and, after that, shuts down ...

A system for estimating values of parameters of a battery includes a battery management system (bms) and a server communicated with the bms. The bms includes a modeling module, an acquisition module, and a first communication module. The server includes a second communication module and an operation module. The modeling module is configured to create an equivalent circuit model for ...

A safety communication system may include a firearm holder capable of detecting withdrawal of the firearm from a holster. The firearm holder may also be able to communicate via both cellular and low energy communication protocols, but may be adapted to selectively communicate via the low energy communication protocol in the absence of a critical event. When a critical event ...

Embodiments directed to a method of manufacturing a pyrotechnic article for use with a thermal battery are disclosed. The method includes forming an iron oxide preform from iron oxide powder. The method also includes reducing the iron oxide preform to an iron preform made of metallic iron. The method further includes impregnating the iron preform with an oxidizer to form ...

The present invention generally relates to two-wheel, three-wheel or four-wheel electric boards, methods of making and using the boards, and power sources used to propel the boards. In one aspect the present invention provides a two-wheel, three-wheel or four-wheel electric board. The board includes: at least one truck and one battery case attached to a deck; at least two wheels ...

The present disclosure relates to an apparatus and a method for controlling transmission control protocol (tcp) connection close to improve a battery life time of a client such as a smart phone in a wireless communication system are provided. A method of operating a client in a wireless communication system includes determining a data transfer inactivity time of at least ...

Aspects of present disclosure relate to a test signal generator, a method for estimating the battery life of battery-powered audio products by means of a test signal simulating effects of music, and a computer program product for generating a test signal simulating the effects of music. The method may include at least one of: extracting, by a test signal generation ...

A system and method for charging battery packs is provided. The system may include a charging pad comprising a power supply, a charging pad surface, and a microcontroller unit. The power supply may provide charging power. The charging pad surface may include a first charging region and a second charging region. The microcontroller unit may control delivery of charging power ...

A device for charging a mobile device, which is also capable of converting a digital audio signal of a mobile device in to an analog audio signal, includes a first digital interface, a digital to analog converter, and a preamplifier. The first digital interface is configured to provide power to a mobile device connected thereto in order to charge the ...

A battery pack receives a charging current from a charger via a power line. The battery pack includes a battery management unit and a transmitting unit. The battery management unit is coupled to a plurality of battery cells and is operable for acquiring data associated with the battery pack. The transmitting unit is coupled to the battery management unit and ...

A battery thermal management system includes a passenger cabin air-conditioning refrigerant loop including at least one evaporator in fluid communication with a chiller and a battery pack coolant loop in fluid communication with the chiller. A controller is configured to determine whether a temperature of the at least one evaporator falls within a predetermined temperature range, and if so to ...

A battery pack includes: a core pack comprising a battery cell including a plurality of unit battery cells electrically connected to each other, a first electrode tab, and a second electrode tab; a case comprising a lower case accommodating the core pack therein and having an opening at a side thereof to insert the core pack therethrough, and an upper ...

Disclosed herein is a sheet attachment device for battery packs, specifically a sheet attachment device for attaching a label sheet and a sheathing sheet to a battery pack having a plate-shaped battery cell mounted in a pack case. The sheet attachment device includes first and second loaders, first and second jigs, first and second guide frames, a first sheet attachment ...

An automated tool control system provides both inventory control of items stored in the system and monitoring of the charging status of rechargeable inventory items such as tools and batteries stored in the system. For these purposes, the tool control system includes storage locations for storing tools and other inventory items, and the storage locations include at least one storage ...

A battery control ic includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and ...