Patent Grant
11524597
Certain electronic devices need to be tracked in physical space to serve their appointed function. The devices can be tracked using external sensors that receive wireless signals which are either reflected off or generated by the tracked device. The positioning system can then determine a position value for the device by analyzing the characteristics of the wireless signals using such approaches as multilateration (MLAT) or other techniques. A specific example of these kinds of devices is the universal remote controller developed and sold by 7hugs Labs which is tracked using an ultrawide band (UWB) positioning system with external wall mounted sensors that determine the position of the universal remote controller. The system can then determine where the remote is pointing so that commands entered on the controller are sent to the appropriate device. Similar systems can be used to track the position of specialized game controllers, pointing devices for interacting with a presentation or display, toys for virtual tag, and many other applications involving tracked electronic devices.
Specialized charging devices for tracked objects and associated methods are disclosed herein. A charging device can be augmented to include a wireless transceiver that is used to assist in tracking the position of the object that the charging device is designed to charge. The charging device can be a charging station that both provides a dock for charging the tracked object and for transmitting wireless signals to conduct a tracking action and determine the location of the object. The charging device can conduct the tracking action alone or in combination with a positioning system including a set of external sensors.
A device exhibiting the combined functionality of both charging an object and tracking the position of the object provides certain benefits. The two kinds of functionality exhibit an appealing synergy because devices that need to be tracked tend to be mobile such that they will also need to be battery powered. Hence, a single device that provides both charging and tracking functionality is aptly suited to facilitate the operation of the tracked device. Furthermore, a charging station will generally include a wired connection and thereby have a large power budget to assist in reliable position tacking. Furthermore, if the charging station is connected to a wall socket, it will already be located in a fixed position which is an amenable characteristic for anchors in many positioning systems. Additional benefits associated with specific embodiments of the invention are disclosed in the detailed description below.
In one embodiment, a charging station is provided. The charging station comprises a charging port for a remote control, a regulator that provides power from a power source to the charging port, a transceiver that transmits an outbound positioning signal to the remote control, and a non-transitory computer-readable medium storing instructions for a method. The method comprises at least one of generating the outbound positioning signal and receiving an inbound positioning signal.
In another embodiment, a charging station is provided. The charging station comprises a charging port configured to connect with a remote control, a regulator for providing power from a power source to the charging port, and a transceiver that transmits and receives positioning signals to and from the remote control.
In another embodiment, a positioning system for generating a position value is provided. The system comprises a remote control for which the positioning system generates the position value, a set of positioning devices that transmit a set of positioning signals to the remote control, and a charging station. The charging station comprises a charging port for the remote control, a regulator that provides power from a power source to the charging port, and a transceiver that transmits an outbound positioning signal to the remote control. The positioning system generates the positioning value using the set of positioning signals from the set of positioning devices, and the outbound positioning signal.
Specialized charging devices for tracked objects and associated systems and methods are disclosed in detail below. As described above, in specific embodiments, a charging device can be augmented to include a wireless transceiver that is used to assist in tracking the position of the object. The charging device can therefore provide both a source of power for the object and assist in tracking the device. Specific embodiments and variations of these concepts are disclosed below with reference to
In specific embodiments of the invention, a charging station will exhibit the functionality required for charging an object. The charging station can include a charging port for an object and a regulator that provides power from a power source to the charging port. The power source can be a mains power connection, provided with a standard electric wall socket, such as a 220-240 V 50 Hz or 120 V 60 Hz supply. The power source could also be a battery, such as a lithium, nickel, or lead acid battery, or an ultra-capacitor. The battery or capacitor could be charged via a periodic connection to a mains power connection, a solar cell, or some other form of energy. The charging station can include any kind of regulator used to condition the power received from the power source into a power characteristic (voltage and current) that is suitable for charging the object. The regulator can be a switching or linear regulator. The object can be charged via the charging port when the object is docked with the charging station such that power flows from the power source, through the regulator, to the charging port, and ultimately charges a battery or ultracapacitor on the object.
In specific embodiments of the invention, the charging station will also provide functionality for tracking the object. The charging station can include a wireless receiver for sensing wireless signals that have been either transmitted by the object or reflected off the object. The charging station can also include a wireless transmitter for transmitting wireless signals to the object to assist in the positioning operation. In one approach, the object can include an accelerometer or other sensors, and keep track of its position internally. The object can then send a wireless signal back to the device to report its position. In another approach, the charging station can conduct time of arrival (TOA) or angle of arrival (AOA) analysis on signals transmitted by the charging station and reflected off the device to track its position. In another approach, the charging station can track the position of the object in combination with a set of external positioning devices. The external positioning devices can transmit wireless signals towards the object which are then reflected off the object and measured by a wireless receiver on the charging station. The external positioning devices can also transmit wireless signals towards the charging station to allow the charging station to auto-locate itself within the positioning system. The external positioning devices can also receive wireless signals transmitted from the charging station directly to the external positioning devices or reflected off the object. The external positioning devices can be wall mounted beacons in an indoor positioning system. The wireless signals can be part of an ultra-wideband (UWB) positioning system that uses MLAT to track the object.
A set of specific embodiments of the invention can be described with reference to
State 100 involves the charging station 101 participating in the charging of object 102. In the illustrated case, object 102 is a wireless battery powered remote control. The remote control may require a system to provide a position value for the remote control so that the remote can either provide the appropriate controls for the device it is pointing at and/or so the system can route commands received on the remote to the appropriate device. In short, a positioning system may be needed to determine where the remote is pointing at any given time. Charging station 101 includes a wired connection to mains power source 104 via a wire connection from a wall socket to the charging station. Charging station 101 can include a port 202 for receiving the wire connection from power source 104. The internals of the charging station include a regulator 206 that conditions power received from mains power source 104 for delivery to object 102 via charging port 201 at a power characteristic optimized to charge object 102. In the illustrated case, the power delivered by the charging station 101 can be used to charge the batteries of the object 102.
In specific embodiments, the charging station can include a charging port and the charging port can take on various forms. The charging port can be configured to connect with the object in order to provide power to a power storage device on the object. In specific embodiments, the charging port will also be a data port for the object. Approaches in which the charging port can also be a data port include approaches in which the object includes software or firmware that can be updated, requires the wired delivery of data from an external source, or requires the wired transmission of data to an external source. For example, the object could be a universal remote and the remote could receive software updates when it is docked with the charging station. Any transfer of data can be conducted via this data port. In particular, transfers of data that are not immediately necessary and that might otherwise overly tax the internal power storage of the object can be transmitted through this data port. In the case of charging station 101, the charging port 201 can also be a data port for object 102.
The charging port could be configured to connect with an object in the sense that the charging port both held the object in place and provided power to the object. For example, the port could be a USB, USB-B, USB-C, Thunderbolt, Lighting, or HDMI port. The charging port could be configured to connect with an object by presenting a male or female interface positioned to accept a corresponding interface on the object. The charging device could also be configured to wirelessly charge the device through inductive coupling. In these embodiments, the charging device could present a target located over an inductive coupling antenna or be designed such that its entire upper surface was prepared to inductively charge an object placed on top of or otherwise in the vicinity of the charging device. If inductive coupling was utilized, the charging device could still communicate with the device while charging using a near field communication wireless protocol or through other wireless protocols such as Bluetooth, Zigbee, Z-wave, Wi-Fi, and other variants.
In specific embodiments, the charging port can hold the object at an angle to either improve the appearance of the unit overall, or to allow an integrated display on the object to display useful information when the device is docked. In situations in which the charging port was placed on a flat surface, as opposed to being wall mounted, the charging port could position the docked device vertically such that the display was perpendicular to a base of the charging station. In approaches in which the object is atheistically pleasing, this form of positioning is beneficial in the sense that the object itself is essentially on display while charging. Furthermore, if the device included an integrated display, the object could be configured to display useful information when docked. For example, the display could show how close the object is to being fully charged, or other useful information such as the time or temperature.
In specific embodiments, the charging port can maintain the object in a position that makes it easy to attach and/or detach. For example, the object could be placed into a cradle on the charging station such that the charging port on the charging device was guided to mate with a counterpart on the object as the object was dropped into the cradle. In another example, the benefits of the prior paragraph could be achieved while still allowing for easy detachment of the device by modifying a standard charging port to decrease the holding force of the connector. The charging port could be configured to allow the device to be placed directly onto the charging port and be held at an angle greater than 45 degrees above a main surface of the charging station. In these situations, the holding force of the connector could be set to less than the weight of the charging station or object, whichever is less. In the illustrated case, the charging port 201 is a modified USB-C connector where the holding force of a traditional USB-C connector has been decreased such that it was less than a weight of the object. In this and similar embodiments, the charging station has been designed to be heavier than the object. In these approaches, object 102 could be lifted smoothly off the charging port 201 without danger of lifting the entire apparatus up along with it.
In specific embodiments, a charging device will include a means for wirelessly determining a position value for the object. The means for wirelessly determining a position value for the object can include a wireless receiver on the charging device. The wireless receiver can receive a signal indicative of the position of the object. The wireless receiver can also receive a signal from which the position of the object can be derived such as via a TOA or AOA analysis conducted on the signal. The means for wirelessly determining a position value for the object can also include a processor and a computer-readable medium storing instructions to conduct the above mentioned derivations. In specific approaches, the means for wirelessly determining a position value for the object can include a wireless transmitter used to send out wireless signals for engaging in a wireless positioning process. For example, the transmitter could transmit an outbound positioning signal to the object. In these approaches, the computer-readable medium could store instructions to generate an outbound positioning signal, receive an inbound positioning signal, and process the inbound positioning signal to determine a position value for the object. In specific approaches, the charging device can both transmit and receive wireless signals using a single transceiver on the charging device. In specific embodiments, the charging device can communicate with a set of external devices to determine the position value. For example, the charging device could rely on positioning signals generated by dedicated positioning devices to generate a position value, or it could rely on a central external server to derive the position value from a set of wireless signals observed by the charging device.
In specific embodiments, a system will include a means for wirelessly determining a position value for the charging device. The system may use the position value of the charging device to derive a more meaningful or more accurate position value for the object. For example, in an MLAT system, the positions of the positioning devices are all determined in order to derive and cross check a position value that coheres with the derived positions of all the devices in the system. The means for wirelessly determining the position value for the charging device can also communicate with a set of external devices. The charging device can receive an inbound auto-positioning signal from these external devices. The charging device can receive the inbound auto-positioning signal using a transceiver that was also used to generate outbound positioning signals transmitted to the object. The charging device can include computer-readable instructions to execute these actions either alone or in combination with external devices. The same processor used to process signals for conducting the derivations necessary to generate a position value for the object can be used to generate the position value for the charging device.
State 110 involves the charging station 101 participating in the tracking of object 102. Charging station 101 can include a processor 205 that is used to determine a position value for object 102 either by itself or in combination with external devices. The wireless transceiver 207 can transmit an outbound positioning signal to the object. Reflections of that signal, or responses to that signal, can then be used by the processor to derive a position of the object. The processor may also consider the characteristics of the outbound signal when determining the position value of the object in those derivations. The reflections can be measured by wireless transceiver 207 or by other devices. In the illustrated case, charging station 101 is participating in the tracking of object 102, and is not tracking the object independently. Instead, charging station 101 is operating with a positioning system for generating a position value for object 102. The system for generating the position value for the object can be system 120 and can include computer-readable media and processors on object 102 itself. System 120 includes a set of external positioning devices in the form of wall mounted beacons 103. The set of wall mounted beacons 103 include a first beacon 1 and a second beacon 2. As illustrated by the dotted lines in the depiction of state 110, beacon 1, beacon 2, and charging station 101 each receive signals that are reflected off object 102 to participate in generating a position value for object 102.
In the illustrated case, the processor relies on the cooperation of a set of external positioning devices 103. The charging station can also generate the positioning value in combination with data from a remote server 121 or the execution of instructions on remote server 121 for purposes of conducting the methods disclosed herein. The processor can generate the position value after analyzing signals received by a wireless receiver such as via wireless transceiver 207.
In specific embodiments in which the charging device operates in combination with external devices, the unique angle of the charging device relative to those external devices can contribute to a more accurate derivation of the positioning value. This is because the requirements for the location of the charging device may differ from the requirements for location of the external positioning device. For example, the charging device may be a charging station for a mobile object meant to be used indoors. More specifically, the charging device may be a charging station configured for placement on a flat surface, such as a coffee table or cabinet top, while the external positioning devices are wall-mounted beacons. The charging station may include a base for supporting the charging station. In these approaches, the charging station can improve the performance of the tracking system in an innocuous way by providing a different angle of view towards the tracked object without adding an additional device to the system. The charging station could further include a transceiver that is positioned to transmit and receive positioning signals at an angle above the base. These approaches provide certain benefits in that the object will likely be in a plane that lies above the charging station but below the external positioning device. The overall system may therefore provide a more accurate reading because the polarity of the heading vector for the object can be more readily derived.
The object being tracked by the positioning systems disclosed herein can be any object whose position needs to be determined by an automated system with a high degree of accuracy. The object can be a pointing device such as a remote control, presentation pointer, inventory management device, or a toy used for wireless tag. The pointing device will have a defined pointing direction which is associated with a heading the user aligns a target with when pointing. In other embodiments, the object can be a drone, smart phone, tablet computer, wearable computing device, or any other computing device. In the specific example of
In specific embodiments, a single wireless transceiver on the charging device can be used for multiple purposes. For example, the transceiver could be used to transmit and receive the positioning signals used to track the object as well as signals for other purposes such as sending commands to the object, receiving commands from the object, receiving data measured by the object, or transmitting a locate-assist signal to the object. The multiple uses will depend on the characteristics of the object.
As mentioned above, the same transceiver used to transmit and receive position values for an object can be used to transmit a locate-assist signal to the object. All objects have the potential to be misplaced. In the case of a remote control being used in an internal environment, the remote could fall behind a piece of furniture and be difficult to quickly locate. In specific embodiments, the object could include a locate-assist feature such that when a user interface on the charging device was engaged, a wireless signal could be sent to the object to make the object generate an audible signal such as a siren to allow someone to easily locate the object. The charging device could include a single transceiver used to transmit signals to position the object with a tracking system and to transmit such a locate-assist signal to the object. In certain approaches, the same wireless protocol and/or transmitter could be used to transmit outbound positioning signals from the charging device and the locate-assist signal. The wireless protocol could be a UWB protocol. As seen in
As mentioned above, the same transceiver used to transmit and receive position values for an object can be used to receive command signals from the object. For example, if the object were a remote control designed to receive controller inputs from the user, the single wireless transceiver used for the positioning signals on the charging device could also be used to receive controller input signals from the remote. The object could be designed to transmit those controller inputs to the charging station wirelessly via a controller input signal so that the system could process the controller inputs appropriately. In certain approaches, the same wireless protocol and/or transmitter could be used to transmit outbound positioning signals from the charging device and receive controller input signals from the object. The wireless protocol could be a UWB protocol. The charging station could include a wired connection, or a more resource intensive wireless connection than the one used to communicate with the remote, to send the controller inputs on to an external server or directly to a device to which the command was directed. The processor on the charging station could be used to process the command inputs and take the appropriate action in response thereto. In approaches in which a different wireless protocol was used to route the commands on from the charging station to other devices, the charging station could include another transceiver dedicated for this purpose. For example, the object could receive the controller input signal on a UWB transceiver and then transmit the commands to another device using a dedicated Zig-bee or Z-wave transceiver. Similar approaches could be used if the object was used to collect data where the controller input signals were replaced with data signals.
As seen in
While the specification has been described in detail with respect to specific embodiments of the invention, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing, may readily conceive of alterations to, variations of, and equivalents to these embodiments. For example, while the example of a mobile charging station with a cord for plugging into a supply has been used as an example environment throughout this disclosure, similar approaches could be applied to permanently installed charging devices built into the walls of a home or into fixed structures in an outdoor environment. These and other modifications and variations to the present invention may be practiced by those skilled in the art, without departing from the scope of the present invention, which is more particularly set forth in the appended claims.
This application is a continuation of U.S. patent application Ser. No. 16/049,133, filed Jul. 30, 2018, and incorporated by reference herein in its entirety for all purposes.
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 16049133 | Jul 2018 | US |
| Child | 17087959 | US |
