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Autonomous wireless charging surface for portable electronics
[Category : - ELECTRONICS]
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Our autonomous charging surface is capable of moving a proximity based power transfer method, such as an inductive power transfer coil, across the surface and allowing multiple electronic devices to be located and charged, all without further user intervention. To the user, electronic devices placed on the charging surface would appear to charge themselves. We believe this is an attractive prospect for potential electronic consumers, where users are expected to charge multiple devices, such as smartphones, smartwatches, wireless headphones, laptops, etc.
The autonomous charging surface can charge multiple devices at any one time by quickly moving the transmitter between devices, making our technology suitable for families or multi device use.
The autonomous charging surface could also be beneficial to mobility or visually impaired users, where plugging in a small cable could be difficult.
Technical Summary
The autonomous charging surface is capable of moving a proximity based power transfer method, such as an inductive power transfer coil, across the surface and allowing multiple electronic devices to be located and charged, all without further user intervention. To the user, electronic devices placed on the charging surface would appear to charge themselves. In our prototype system we used a magnet on the device and a magnetometer in the Charging Surface, however the patent covers a plurality of location methods, such as RFID, WiFi and Bluetooth.
Today we are using multiple portable electronic devices, such as smartphones and smartwatches, each of which requires the internal energy store to be replenished from a charging source for continued operation. Typically, each device requires a bespoke charger and user intervention to plug or unplug a cable. In the case of inductive charging, the user is often required to align their device with the charging mat to ensure power transfer. The autonomous charging surface is able to tilt the head to accommodate such inclinations.
In the case of multiple devices present on the autonomous charging surface, our system is capable of determining which devices require charging first, based on the least amount of power remaining in the device's internal battery and assigning a priority order to the devices. A user can override this automatically determined priority order at any time. There is also scope to determine usage pattern from a user and assign a charging priority order not solely based on battery status, but on predicted device usage at a given time of the day.
The autonomous charging surface is also able to quickly move between multiple devices allowing the devices to appear to be charging simultaneously; a process we designate as pseudo-parallel charging.
Financial information
We are looking for the complete sale and transfer of rights for our autonomous wireless charging surface patent, GB2549135A, for approximately £15,000.
The research paper "CoilMove: An Actuated to-body Energy Transfer System", is based upon our patent GB2549135A, and can be found at:
Link
We filled for our patent GB2549135A before submitting the research paper, so the invention is fully protected.
The patent GB2549135A was granted by the UK IPO on 15th December 2021.
To the user, electronic devices placed on the autonomous charging surface would appear to charge themselves. We believe this is an attractive prospect for potential electronic consumers, where users are expected to charge multiple devices, such as smartphones, smartwatches, wireless headphones, laptops, etc.
Patent publications:
GB 2549135
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