CN210042235U - Indoor positioning system - Google Patents
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- CN210042235U CN210042235U CN201920769911.9U CN201920769911U CN210042235U CN 210042235 U CN210042235 U CN 210042235U CN 201920769911 U CN201920769911 U CN 201920769911U CN 210042235 U CN210042235 U CN 210042235U
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Abstract
The utility model provides an indoor positioning system, which relates to the technical field of indoor positioning and can utilize a position server to send synchronous signals to bridge nodes; after receiving the synchronous signal, the bridge node sends a UWB signal to the PDA device according to the UWB positioning module, and triggers the anchor node to send the UWB signal to the PDA device through the UWB positioning module; the PDA device receives UWB signals sent by the bridge node and the anchor node through the UWB positioning module, and calculates the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals, so that the PDA device is automatically positioned in the current space, and the use experience of a user is improved.
Description
Technical Field
The utility model belongs to the technical field of indoor location technique and specifically relates to an indoor positioning system is related to.
Background
The present PDA (Personal Digital Assistant) is basically equipped with a GPS (Global Positioning System) Positioning module, and its use occasion can only be applied to the outdoor place with GPS signals, but not the indoor place without GPS signals, and the PDA cannot provide Positioning service by the GPS. Most PDA products have WIFI and Bluetooth functions and can rely on WIFI (Wireless-Fidelity) to perform indoor positioning, but the positioning accuracy is not high and is about several meters to dozens of meters, and the indoor positioning scene of the warehouse logistics industry cannot be met.
Because the existing PDA can not provide accurate indoor position information when used for indoor positioning, the PDA with indoor positioning is not used for in-out management in the existing storage logistics management system, and the experience degree of a user on PDA products is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an indoor positioning system to alleviate the above technical problems.
In a first aspect, an embodiment of the present invention provides an indoor positioning system, which includes: the system comprises a bridge node, an anchor node, a PDA device and a position server, wherein the bridge node, the anchor node and the PDA device respectively comprise a UWB positioning module, the bridge node and the anchor node are arranged at the designated position of the current space, and the bridge node is connected with the position server; the position server is used for sending a synchronous signal to the bridge node; the bridge node is used for receiving the synchronous signal, sending a UWB signal to the PDA device according to the UWB positioning module, and triggering the anchor node to send the UWB signal to the PDA device through the UWB positioning module; the PDA device is used for receiving UWB signals sent by the bridge node and the anchor node through the UWB positioning module and calculating the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals.
With reference to the first aspect, embodiments of the present invention provide a first possible implementation manner of the first aspect, wherein the UWB positioning module includes: the UWB mainboard is connected with the UWB adapter board through a connector to realize communication; the UWB mainboard comprises a UWB antenna and a UWB unit; the UWB unit is used for calculating position information according to the UWB signals received by the UWB antenna; the UWB unit is also used to transmit UWB signals through the UWB antenna.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the UWB positioning module is communicatively connected to the PDA device through a UWB adapter board, and is configured to send the spatial location information calculated by the UWB unit to the PDA device for analysis and display.
With reference to the first aspect, embodiments of the present invention provide a third possible implementation manner of the first aspect, wherein the PDA device is communicatively connected to the location server; the PDA device is also used for sending the calculated self spatial position information to the position server for displaying; the bridge node is also used for receiving the spatial position information of the anchor node, wherein the spatial position information of the anchor node is position information carrying self identification; the bridge node is also used for transmitting the position information carrying the self identification and the spatial position information of the anchor node to a position server for displaying.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the system further includes a WMS server; the PDA device is in communication connection with the WMS server through the wifi module and is used for receiving the task information sent by the WMS server and displaying the task information on the display screen; the task information at least comprises goods information, goods shelf position information or goods warehousing quantity information.
In a fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the PDA device further includes a cargo identification module, wherein the cargo identification module includes one or more of the following modules: the RFID system comprises an RFID unit module, a one-dimensional code identification module and a two-dimensional code identification module; the PDA device is also used for acquiring goods information through the goods identification module and sending the goods entering and exiting quantity information carrying the goods information to the WMS server.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the bridge node further includes: the UWB positioning module comprises an Ethernet interface and a data transmission module connected with the Ethernet interface, wherein the UWB positioning module is connected with the data transmission module; the Ethernet interface is used for connecting with the position server so as to realize the bidirectional communication between the bridge node and the position server; the data transmission module is used for sending the spatial position information to the position server.
With reference to the sixth possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where the data transmission module includes: the system comprises an Ethernet chip and an ARM processor connected with the Ethernet chip; wherein, the Ethernet chip is connected with the Ethernet interface, and the ARM processor is connected with the UWB positioning module.
In combination with the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the system further includes a network device, the network device includes a switch, and a router connected to the switch, wherein the bridge node is connected to the switch, and the router is connected to the location server.
In combination with the sixth possible implementation manner of the first aspect, an embodiment of the present invention provides a ninth possible implementation manner of the first aspect, wherein the bridge node further includes a charging module, where the charging module includes: the power supply chip, and a first LDO chip, a charging chip, a lithium battery and a second LDO chip which are sequentially connected with the power supply chip; the power supply chip is connected with the Ethernet interface and used for acquiring electric energy from the Ethernet; the lithium cell is connected with UWB orientation module, and ethernet chip and ARM treater all are connected with the second LDO chip for provide the electric energy for UWB orientation module, ethernet chip and ARM treater.
The embodiment of the utility model provides a following beneficial effect has been brought:
the embodiment of the utility model provides an indoor positioning system can utilize the position server to send synchronizing signal to the bridge node; after receiving the synchronous signal, the bridge node sends a UWB signal to the PDA device according to the UWB positioning module, and triggers the anchor node to send the UWB signal to the PDA device through the UWB positioning module; the PDA device receives UWB signals sent by the bridge node and the anchor node through the UWB positioning module, and calculates the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals, so that the PDA device is automatically positioned in the current space, and the use experience of a user is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an indoor positioning system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another indoor positioning system provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bridge node according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another bridge node according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
The indoor positioning means that position positioning is realized in an indoor environment, and a set of indoor position positioning system is formed by mainly integrating multiple technologies such as wireless communication, base station positioning, inertial navigation positioning and the like, so that position monitoring of personnel, objects and the like in an indoor space is realized. At present, PDA has only configured GPS orientation module, and its use occasion can only be used in the outdoor place that has the GPS signal, and does not have the place of GPS signal indoor, and PDA then can not provide positioning service by GPS, and based on this, the embodiment of the utility model provides an indoor positioning system and method can alleviate above-mentioned problem.
In order to facilitate understanding of the present embodiment, a detailed description will be given first of all to an indoor positioning system disclosed in an embodiment of the present invention.
The first embodiment is as follows:
the embodiment of the utility model provides an indoor positioning system, as the structural schematic diagram of an indoor positioning system that figure 1 is shown, this system includes: bridge node 102, anchor node 104, PDA device 106, and location server 108.
As shown in fig. 1, the bridge node, the anchor node and the PDA device respectively include an UWB (Ultra wide band) positioning module 110, the bridge node and the anchor node are disposed at a designated position in a current space, the bridge node is connected to a location server, and the bridge node, the anchor node and the PDA device are communicatively connected by UWB signals. Specifically, the location server is configured to send a synchronization signal to the bridge node; the bridge node is used for receiving the synchronous signal, sending a UWB signal to the PDA device according to the UWB positioning module, and triggering the anchor node to send the UWB signal to the PDA device through the UWB positioning module; the PDA device is used for receiving UWB signals sent by the bridge node and the anchor node through the UWB positioning module and calculating the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals.
In specific implementation, the UWB is a carrier-free communication technology, and data is transmitted by using nanosecond-microsecond-level narrow non-sine wave pulses. UWB is not a single technology but a radio technology that is applied for a range of practical wideband signals. These radio technologies operate over a wide frequency range and have different signal characteristics. UWB can be used to accurately measure the distance between a transmitting source and a reflecting object and accurately determine location information. In practical use, a UWB positioning module is respectively arranged in the bridge node, the anchor node and the PDA device, and the three are in communication connection through sending and receiving UWB signals.
On the basis of fig. 1, fig. 2 shows a schematic structural diagram of another indoor positioning system, as shown in fig. 2, by taking an example of a location reference for positioning a wireless network formed by placing one bridge node 102 and three anchor nodes 104 at a specified location in a current space as an illustration, the bridge node 102 is connected to a location server 108 through a network device 202, the network device 202 includes a switch 204, and a router 206 connected to the switch, wherein the bridge node is connected to the switch, the router is connected to the location server, the three anchor nodes are connected to the bridge node, and the three anchor nodes and the bridge node are all connected to a PDA device, so as to realize the positioning of the PDA device in the current space.
Specifically, the position server sends a synchronous signal to the bridge nodes through the router and the switch, after the bridge nodes receive the synchronous signal, UWB signals carrying the synchronous signal are sent to each anchor node through the UWB positioning module, the synchronous bridge nodes and the anchor nodes periodically send the UWB signals to the UWB positioning module in the PDA device, and the UWB positioning module in the PDA device calculates the space position of the current space where the current PDA device is located according to the time of the received UWB signals sent by the bridge nodes and the anchor nodes and the UWB signal propagation rate.
The embodiment of the utility model provides an indoor positioning system can utilize the position server to send synchronizing signal to the bridge node; after receiving the synchronous signal, the bridge node sends a UWB signal to the PDA device according to the UWB positioning module, and triggers the anchor node to send the UWB signal to the PDA device through the UWB positioning module; the PDA device receives UWB signals sent by the bridge node and the anchor node through the UWB positioning module, and calculates the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals, so that the PDA device is automatically positioned in the current space, and the use experience of a user is improved.
Specifically, the UWB positioning module includes: the UWB mainboard is connected with the UWB adapter board through a connector to realize communication; the UWB mainboard comprises a UWB antenna and a UWB unit; the UWB unit is used for calculating position information according to the UWB signals received by the UWB antenna; the UWB unit is also used to transmit UWB signals through the UWB antenna.
Typically, a UWB location module in a PDA device is communicatively coupled to the PDA device via a UWB patch panel. Specifically, the UWB interposer and the PDA device are connected by a Flexible Printed Circuit (FPC) cable to realize communication between the UWB positioning module and the PDA device.
During specific implementation, the bridge node and the anchor node send UWB signals to a UWB positioning module of the PDA device through a UWB antenna by utilizing a UWB unit, the PDA device receives the UWB signals sent by the bridge node and the anchor node through the UWB antenna and sends the received UWB signals to the UWB unit in the PDA device, the UWB unit calculates the spatial position of the UWB unit in the current space according to the received UWB signals, and the spatial position information calculated by the UWB unit is sent to the PDA device through a UWB adapter plate for analysis and display.
In actual use, the PDA device is in communication connection with the position server; the PDA device is also used for sending the calculated self spatial position information to the position server for displaying; the bridge node is also used for receiving the spatial position information of the anchor node, wherein the spatial position information of the anchor node is position information carrying self identification; the bridge node is also used for transmitting the position information carrying the self identification and the spatial position information of the anchor node to a position server through the switch for displaying.
Usually, the anchor node communicates with the location server through the bridge node, so that the composition of the positioning wireless network can be realized without laying a large amount of optical fibers during construction, in practical use, each anchor node sends UWB signals carrying self identification and self position information to the bridge node through the UWB positioning module, the bridge node sends UWB signals of the self identification and self position information and the UWB signals of each anchor node to the position server through the switch and the router for display, as shown in fig. 2, the PDA device is communicatively coupled to the location server via UWB signals, when the UWB location module in the PDA device calculates its own spatial location within the current space, the PDA device sends the UWB signals carrying the self identification and the self position information to the position server for displaying, so that a user can know the position of the current PDA device in the current space.
In practical applications, the conventional PDA does not have an indoor positioning function, and cannot position the relationship between the in-out goods of the operator and the actual storage location, so that the actual in-out product and the expected in-out product have errors, and the PDA device is internally provided with the UWB positioning module, so that a series of applications in positioning are generated, such as access monitoring of an office and personnel positioning of a specific work occasion. For example, the PDA device can be used for positioning an operator in the warehouse logistics industry, and when the operator carries the PDA device to enter a warehouse, the operator can be guided to a designated warehouse location to access goods.
Specifically, the System further includes a WMS (wireless Management System) server; the PDA device is in communication connection with the WMS server through the wifi module and is used for receiving the task information sent by the WMS server and displaying the task information on the display screen; the task information at least comprises goods information, goods shelf position information or goods warehousing quantity information.
When the PDA device is used specifically, the PDA device is in communication connection with the WMS server through the wifi module, a user can send task information to the PDA device through the WMS server to enable an operator to know specific content of the task information, goods are stored and taken from a warehouse where the goods are stored according to the task information, and the operator can be guided to the designated warehouse to take and take the goods by carrying the PDA device.
Typically, the PDA device further comprises a cargo identification module, wherein the cargo identification module comprises one or more of the following modules: an RFID (Radio Frequency Identification) unit module, a one-dimensional code Identification module and a two-dimensional code Identification module; the PDA device is also used for acquiring goods information through the goods identification module and sending the goods entering and exiting quantity information carrying the goods information to the WMS server.
Preferably, a goods label corresponding to the goods is attached to the shelf or the goods, the goods label may be composed of an RFID unit module, a one-dimensional code identification module or a two-dimensional code identification module, and an operator may obtain information of the goods, such as a name, a place of production, and a date of production, by scanning the goods label using a goods identification module in the PDA device. The operator can input the goods in and out quantity on the PDA device, and the goods in and out quantity information carrying the goods information is sent to the WMS server to be displayed and stored.
Fig. 3 shows a schematic structural diagram of a bridge node, and as shown in fig. 3, the bridge node includes, in addition to the UWB locating module 110: an ethernet interface 302 and a data transmission module 304 connected to the ethernet interface, wherein the UWB positioning module 110 is connected to the data transmission module 304; the Ethernet interface is used for connecting with the position server so as to realize the bidirectional communication between the bridge node and the position server; the data transmission module is used for sending the spatial position information to the position server.
The data transmission module 304 includes: an ethernet chip 306, and an arm (advanced RISC machine) processor 308 connected to the ethernet chip; wherein, the Ethernet chip is connected with the Ethernet interface, and the ARM processor is connected with the UWB positioning module.
Specifically, the position server sends a synchronous signal to the data transmission module through the Ethernet interface, and sends the synchronous signal to the UWB positioning module in the bridge node through the data transmission module, the UWB positioning module in the bridge node can send the UWB signal to the data transmission module, the UWB signal is sent to the position server through the data transmission module, and the Ethernet interface and the data transmission module are arranged in the bridge node to realize the two-way communication between the UWB positioning module in the bridge node and the position server.
On the basis of fig. 3, fig. 4 shows another bridge node structure schematic diagram, and as shown in fig. 4, the node further includes a charging module 402, where the charging module includes: a power chip 404, a first LDO (low dropout Regulator) chip 406, a charging chip 408, a lithium battery 410, and a second LDO chip 412, which are connected to the power chip in sequence; the power supply chip is connected with the Ethernet interface and used for acquiring electric energy from the Ethernet; the lithium cell is connected with UWB orientation module, and ethernet chip and ARM treater all are connected with the second LDO chip for provide the electric energy for UWB orientation module, ethernet chip and ARM treater.
During the concrete realization, power chip connects the ethernet interface and is responsible for getting the electricity from the ethernet, and first LDO chip connects power chip and is responsible for transmitting to the chip that charges after the high voltage drops to safe voltage, and the chip that charges is responsible for carrying out charge management for the lithium cell, and the lithium cell is responsible for providing the electric energy for UWB orientation module, and second LDO chip is connected with the lithium cell and is responsible for further converting the voltage to voltage after will converting provides the electric energy for ethernet chip and ARM treater.
Adopt above-mentioned indoor positioning system, can realize the automatic positioning of PDA device in current space, to sum up, the embodiment of the utility model provides an indoor positioning system has following beneficial effect:
(1) in the indoor positioning system, a time synchronizer is not required to be independently arranged to synchronize the bridge node and the anchor node, so that the equipment purchase cost is saved, an independent optical fiber network is not required during construction, and data transmission and power supply of a power supply can be completed by only depending on one Ethernet network cable, so that the construction is very simple and convenient, and the wiring is easy.
(2) Because the PDA device is internally provided with the UWB positioning module, the position information of the PDA device can be automatically calculated through UWB signals of the bridge node and the anchor node, in addition, the number of the PDA devices which can be accessed in the system can reach tens of thousands, the system capacity is very large, compared with the traditional positioning system which depends on the server to calculate the position, the PDA device does not depend on other interfaces and networks to obtain the space position of the PDA device in the current space, but directly obtains the position, the response speed is high, and the requirement on the configuration of the position server is not high.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An indoor positioning system, the system comprising: the system comprises a bridge node, an anchor node, a PDA device and a position server, wherein the bridge node, the anchor node and the PDA device respectively comprise a UWB positioning module, the bridge node and the anchor node are arranged at the designated position of the current space, and the bridge node is connected with the position server;
the location server is used for sending a synchronization signal to the bridge node;
the bridge node is used for receiving the synchronous signal, sending a UWB signal to the PDA device according to the UWB positioning module, and triggering the anchor node to send the UWB signal to the PDA device through the UWB positioning module;
the PDA device is used for receiving UWB signals sent by the bridge node and the anchor node through the UWB positioning module and calculating the space position of the PDA device in the current space through the UWB positioning module according to the UWB signals.
2. The system of claim 1, wherein the UWB location module comprises: the UWB communication system comprises a UWB main board and a UWB adapter board, wherein the UWB main board and the UWB adapter board are connected through a connector to realize communication;
the UWB mainboard comprises a UWB antenna and a UWB unit;
the UWB unit is used for calculating position information according to the UWB signals received by the UWB antenna;
the UWB unit is further configured to transmit a UWB signal through the UWB antenna.
3. The system of claim 2, wherein the UWB positioning module is communicatively connected to the PDA device through the UWB patch panel, and is configured to send the spatial location information calculated by the UWB unit to the PDA device for analysis and display.
4. The system of claim 1, wherein said PDA device is communicatively coupled to said location server;
the PDA device is also used for sending the calculated self space position information to the position server for displaying;
the bridge node is also used for receiving the spatial position information of the anchor node, wherein the spatial position information of the anchor node is position information carrying self identification;
and the bridge node is also used for transmitting the position information carrying the self identification and the spatial position information of the anchor node to the position server for displaying.
5. The system of claim 1, further comprising a WMS server;
the PDA device is in communication connection with the WMS server through the wifi module and is used for receiving task information sent by the WMS server and displaying the task information on the display screen;
the task information at least comprises goods information, shelf information, position information of shelves or goods warehousing quantity information.
6. The system of claim 5, wherein the PDA device further comprises a cargo identification module, wherein the cargo identification module comprises one or more of the following modules: the RFID system comprises an RFID unit module, a one-dimensional code identification module and a two-dimensional code identification module;
the PDA device is also used for acquiring goods information through a goods identification module and sending the information of the quantity of the goods in and out carried with the goods information to the WMS server.
7. The system of claim 4, wherein the bridge node further comprises: the UWB positioning module is connected with the data transmission module;
the Ethernet interface is used for connecting with the position server so as to realize the bidirectional communication between the bridge node and the position server;
and the data transmission module is used for sending the spatial position information to the position server.
8. The system of claim 7, wherein the data transmission module comprises: the system comprises an Ethernet chip and an ARM processor connected with the Ethernet chip;
the Ethernet chip is connected with the Ethernet interface, and the ARM processor is connected with the UWB positioning module.
9. The system of claim 1, further comprising a network device comprising a switch, and a router connected to the switch, wherein the bridge node is connected to the switch and the router is connected to the location server.
10. The system of claim 8, wherein the bridge node further comprises a charging module, wherein the charging module comprises: the device comprises a power supply chip, and a first LDO chip, a charging chip, a lithium battery and a second LDO chip which are sequentially connected with the power supply chip;
the power supply chip is connected with the Ethernet interface and is used for acquiring electric energy from the Ethernet;
the lithium cell with UWB location module connects, the ethernet chip with the ARM treater all with the second LDO chip is connected, is used for UWB location module, the ethernet chip with the ARM treater provides the electric energy.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110062460A (en) * | 2019-05-27 | 2019-07-26 | 北京雅讯东方科技有限公司 | Indoor locating system and method |
| US11457330B2 (en) | 2020-08-25 | 2022-09-27 | Cisco Technology, Inc. | Dynamic anchor assignments for UWB ranging |
| US11470571B2 (en) | 2020-08-25 | 2022-10-11 | Cisco Technology, Inc. | Assigning UWB anchors for client ranging |
| US11533698B2 (en) | 2020-12-16 | 2022-12-20 | Cisco Technology, Inc. | Mapping method to compensate for UWB coverage gaps |
| US11564057B2 (en) | 2020-08-25 | 2023-01-24 | Cisco Technology, Inc. | Prioritized scheduling for UWB ranging |
| US11644525B2 (en) | 2020-11-04 | 2023-05-09 | Cisco Technology, Inc. | Location accuracy augmentation method with ultra wideband |
| US11828832B2 (en) | 2020-08-25 | 2023-11-28 | Cisco Technology, Inc. | Infrastructure triggering techniques to facilitate secure ultra-wideband (UWB) ranging |
| US11863340B2 (en) | 2021-09-14 | 2024-01-02 | Samsung Electronics Co., Ltd. | Method and system for controlling home appliance |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110062460A (en) * | 2019-05-27 | 2019-07-26 | 北京雅讯东方科技有限公司 | Indoor locating system and method |
| US11457330B2 (en) | 2020-08-25 | 2022-09-27 | Cisco Technology, Inc. | Dynamic anchor assignments for UWB ranging |
| US11470571B2 (en) | 2020-08-25 | 2022-10-11 | Cisco Technology, Inc. | Assigning UWB anchors for client ranging |
| US11564057B2 (en) | 2020-08-25 | 2023-01-24 | Cisco Technology, Inc. | Prioritized scheduling for UWB ranging |
| US11812334B2 (en) | 2020-08-25 | 2023-11-07 | Cisco Technology, Inc. | Dynamic anchor assignments for UWB ranging |
| US11832208B2 (en) | 2020-08-25 | 2023-11-28 | Cisco Technology, Inc. | Assigning UWB anchors for client ranging |
| US11828832B2 (en) | 2020-08-25 | 2023-11-28 | Cisco Technology, Inc. | Infrastructure triggering techniques to facilitate secure ultra-wideband (UWB) ranging |
| US11838830B2 (en) | 2020-08-25 | 2023-12-05 | Cisco Technology, Inc. | Prioritized scheduling for UWB ranging |
| US11644525B2 (en) | 2020-11-04 | 2023-05-09 | Cisco Technology, Inc. | Location accuracy augmentation method with ultra wideband |
| US11533698B2 (en) | 2020-12-16 | 2022-12-20 | Cisco Technology, Inc. | Mapping method to compensate for UWB coverage gaps |
| US11863340B2 (en) | 2021-09-14 | 2024-01-02 | Samsung Electronics Co., Ltd. | Method and system for controlling home appliance |
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