CN110100187A - Use the reversed beacon indoor locating system of existing detecting field - Google Patents
Use the reversed beacon indoor locating system of existing detecting field Download PDFInfo
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- CN110100187A CN110100187A CN201780079704.4A CN201780079704A CN110100187A CN 110100187 A CN110100187 A CN 110100187A CN 201780079704 A CN201780079704 A CN 201780079704A CN 110100187 A CN110100187 A CN 110100187A
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- Prior art keywords
- system node
- reversed
- beacon
- computer
- node
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0257—Hybrid positioning
- G01S5/0258—Hybrid positioning by combining or switching between measurements derived from different systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S2205/01—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations specially adapted for specific applications
- G01S2205/02—Indoor
Abstract
Indoor locating system and method include determining for position and there are the reversed beacons of detection technology.Reversed beacon be include any device of transceiver and the computer operated together with system node, and the form of usually smart phone or other mobile computers.The system and method utilize and follow common communication protocol (such as BluetoothTMAnd Wi-Fi) any device wireless signal, to provide location based service, such as position is determining and serves as there are the basic fact fields of sensing system.The system and method are operated by the passive license wireless communication occurred during the usual operating process of wireless network, irrespective of whether there are reversed beacons.
Description
Cross reference to related applications
This application claims U.S. Provisional Patent Application Serial Article No. 62/437,412 submitted on December 21st, 2016
Equity, and be in submission on May 19th, 2017 and U.S. patent Nos application sequence the 15/600th, 380 pending at present
Continuation in part application, application sequence the 15/600th, 380 be on August 3rd, 2016 submit and now authorization be American invention
Sequence is applied in the connecting application of patent application the 9th, 693,195 U.S. patent Nos application sequence the 15/227th, 717
No. 15/227,717 is in the beauty that on March 29th, 2016 submits and authorization is U.S. patent Nos the 9,474,042nd now
State's invention Patent Application Serial the 15/084,002nd connecting apply and require on November 9th, 2015 U.S. submitted it is interim
The U.S. Provisional Patent Application the 62/219,457th Patent Application Serial the 62/252,954th and submitted for 16th in September in 2015
Number equity.The complete disclosure of all above-mentioned files is incorporated herein by reference.
Technical field
This disclosure relates to the field of location based service.
Background technique
Wireless communication device includes one or more nodes that signal is sended and received according to respective programming.These nodes
Computer server can be will send information to by traditional communication means and any wireless technology or agreement.With disclosure herein
It is maximally related be wireless communication, and traditionally defer to some form of communication standard (including but not limited to Wi-Fi and
BluetoothTM).Two kinds of such wireless communication information is just causing the high interest of people: those facilitate position and determine
With the information that there is sensing.
Wireless communication technique becomes more and more popular in commercial market.The position of fixed assets is solved there are a large amount of prior arts
Determination is set, such as help people find car key or track the people in building.But in order to operate, these prior arts all have
There are a variety of requirements that must be satisfied.The prior art generally includes the system being made of multiple dedicated nodes.Each node be with
Target object (for example, people, car key or mobile device) associated dedicated transceiver, and other nodes can function as be
The transceiver of the fixed assets of the known location of system.Node is used as " beacon ", and dedicated transceiver obtains from stationary nodes and believes
Number, and communicate the signals to computing element by by the signal processing in the form of more available.Then, treated
Information can be by Computer display, or (including but not limited to position determines) is used in another system.
Signal from node is conventionally by by being based on Wi-Fi or BluetoothTMCommunication device composition network into
Row is sent, and wherein the information is relayed to computer server usually using Wi-Fi router or certain smart phone.The prior art
Usually estimated using such signal to the distance of each transceiver, and is utilized by certain triangulation means and come from each receipts
The distance estimations of device are sent out to estimate the position for the device being tracked.
In business and housing facilities, indoor locating system is continued to develop to become more effective and have cost-effectiveness.This
A little services start to do one's duty, including but not limited to position determination, location tracking, geography fence, safety and navigation.Many clothes
Business, which is also typically used as basic fact and the third party device of reference, to be enhanced.Pervious system needs to modify existing hardware,
Either by obtaining novel circuit, hardware or programming or changing available circuit, hardware or volume using add-on assemble or extension
Journey is modified.In order to valuable to user, such position sensing is generally had to the fixed known bits in systems of beacon
It sets to provide the triangulation relative to known point, and triangulation or similar algorithm can be determined relative to detection node
Position dedicated node, but any node cannot be placed on to the position relative to fixed coordinate system.
In order to suitably operate, current indoor locating system substantially needs a large amount of dedicated " beacons ", these beacons
The stationary nodes that be actually mounted at each facility.Installation and establishment process of these beacons in each independent facility
It is expensive and detailed process.Then, these beacons serve as fixed triangulation point, to position its position as the dedicated of target
Node.It should be apparent that due to two beacons that triangulation algorithm needs to know to interact with dedicated node,
The each point being necessary to ensure that in the target area for detection in existing interior detection system can be carried out with two beacons
Communication.
The positioning system product developed in commercial and industrial industry seldom penetrates into household technical industry.To cost sensitivity
Consumer especially shows the concern to the understanding of location based service.Lack the foundation to indoor locating system using usual
It is to be primarily upon driving by several, mainly in terms of cost and convenience.Simply, enough letters are installed in house
It is costly and complicated that being marked with, which makes system operate normally while still have cost-effectiveness,.
First problem is the high cost of the quantity of beacon needed for the essentially all indoor locating system of purchase and software.
Studies have shown that can be run in the case where no beacon almost without current system at present.No beacon system has been proposed
Idea, but there are no people to be actually implemented such system, because such system is invalid for triangulation algorithm.It examines
Quantity needed for considering the spending and system operation of each beacon, to the consumer of cost sensitivity usually to using such system still
It does not determine in Henan.Second Problem is the convenience in terms of installation foundation.Essentially all indoor locating system all includes being fixed on
The fixed beacon of each position in the system.Since the beacon of particular design is the particularity that receiver transmits signal specific,
Such system may be not easy replacement and original installation must shift completely.Such as and unrestrictedly, if family move, he
Will be forced to remove all beacons in family in each room, go to new house, then re-establish completely new environment and system.
This is very time-consuming, and system maintenance and displacement is made to cause to bear to consumer.In addition, they may not have for new position
There is the beacon of suitable quantity or type, therefore further infrastructure must also be invested, so that system is feasible in new position.
Summary of the invention
It is summary of the invention of the invention below, in order to provide the basic comprehension to some aspects of the invention.In the present invention
Hold to be not intended to and identifies key or important element of the invention or describe the scope of the present invention.The sole purpose of this part is with simplification
Form some designs of the invention are presented, as the preamble in greater detail presented later.
Since these and other problem in this field is designed in addition, described herein is reversed beacon system
Estimate its position relative to a group node of creation detecting field.In general, reversed Beacon analysis is by one in detecting field
Or one or more groups of signals that multiple wireless devices generate, analyze the mode in those signals at any time, and estimate its relative to
The position of those nodes.Communication is not necessarily directly established between the node in reversed beacon and detecting field (for example, being based on agreement
Communication, wherein reversed beacon participates in the transmission using data on network), the signal of the node in detecting field is still available
Relative position in environment.Usage trend and the ability that the communication based on agreement is carried out with the node in detecting field is not needed
The position for allowing reversed beacon using the various different devices under different agreement to estimate it relative to those nodes.
In principle, such system can be stored in reversed beacon addressable by will test the position of the node in field
It being operated in tripartite's service, then reversed beacon analyzes the identifier (thus it can detecte communication) provided by each device,
And oneself is positioned relative to those devices in the environment of third party's service.It is not needing to be based on the node in detecting field
In the case where the direct communication of agreement, reversed beacon can use existing infrastructure to estimate its position, and not need to visit
The network provided by the node in detecting field is provided, if the physical radio electricity in reversed beacon can monitor in the network into
Capable communication.
In addition, there is also described herein one kind for positioning reversed letter calibration method in detecting field, comprising: providing includes receiving
Send out the reversed beacon of device and computer；The multiple system nodes for being deployed as being formed detecting field are provided；The reversed beacon is mobile
Into the detecting field；The first system section is received from the first system node in the multiple system node at the transceiver
Point signal；Second system node signal is received from the second system node in the multiple system node at the transceiver；
Third system node signal is received from the third system node in the multiple system node at the transceiver；In the meter
The first system node signal, the second system node signal and the third system node signal are converted at calculation machine
History data set, the history data set include: the first system node identifier and associated with the first system node
The first system nodal distance measurement；With second system node identifier and second system associated with the second system node
Nodal distance measurement；Third system node identifier and third system node associated with the third system node are apart from degree
Amount；The step of the step of by the reception the first system node signal, the reception second system node signal, described receives the
The step of three system node signals and the switch process are repeated as many times, to form multiple history data sets；Based on than
Each of more the multiple historical data concentration history data set is to calculate the reversed beacon in the detecting field
Position, determined at the computer the reversed beacon relative to the first system node, the second system node and
The position of the third system node.
In the embodiment of this method, reversed beacon includes mobile device.
In another embodiment of this method, reversed beacon includes smart phone or tablet computer.
In another embodiment of this method, reversed beacon includes wearable computer device.
In another embodiment of this method, the first system node is selected from the group being made up of: computer, network dress
It sets and smart machine.
In another embodiment of this method, this method further comprises that the reversed letter is determined at the computer
It marks and determines state relative to the position of the detecting field.
In another embodiment of this method, the position determines that state is selected from the group that is made up of: it is close, from
Open, in a room, it is static and mobile.
In another embodiment of this method, computer includes local networked computer.
In another embodiment of this method, reversed beacon includes local networked computer.
In another embodiment of this method, computer includes being communicatively connected to transceiver by telecommunication network
Wireless computer server.
In another embodiment of this method, this method further comprises: providing third party system；At least partly ground
The third party system is operated in the position of the reversed beacon determined in the determining step.
In another embodiment of this method, the third party system is selected from the group being made up of: electrical system；According to
Bright system；Heating, ventilation and cooling (HVAC) system；Security system；Domestic automation system；Industrial automation system.
In another embodiment of this method, the detecting field is by using the agreement selected from group consisting of
Wireless communication is formed: BluetoothTM, BluetoothTMLow energy, ANT, ANT+, WiFi, Zigbee, Thread and Z-
Wave。
In another embodiment of this method, system node described at least one of the multiple system node is matched
It is set to and is communicated using the communication protocol different from the other system nodes of at least one of the multiple system node.
In another embodiment of this method, the detecting field is arranged in space indoors, and the determining step
Further comprise: based on each of more the multiple historical data concentration history data set to exist to the reversed beacon
Position in the detecting field carries out triangulation, determines the reversed beacon relative to first system at the computer
The position of system node, the second system node and the third system node.
In another embodiment of this method, the method is by the reversed beacon only passively from the multiple system
Node receives wireless communication signals to execute.
In another embodiment of this method, the method is by the reversed beacon initiatively from the multiple system section
Point receives wireless communication signals to execute.
In addition, there is also described herein a kind of systems for positioning reversed beacon in detecting field, comprising: computer；It is more
A system node is disposed to form detecting field；Reversed beacon, including transceiver, computer and thereon have program instruction
Non-volatile computer readable storage medium storing program for executing, when by the computer execute when, described program instruction make the reversed beacon
It executes following steps: receiving the first system node from the first system node in the multiple system node at the transceiver
Signal；Second system node signal is received from the second system node in the multiple system node at the transceiver；?
Third system node signal is received from the third system node in the multiple system node at the transceiver；By described first
System node signal, the second system node signal and the third system node signal are converted to history data set, described
History data set includes: the first system node identifier and the first system nodal distance associated with the first system node
Measurement；It is measured with second system node identifier and second system nodal distance associated with the second system node；The
Three system node identifiers and third system node distance metric associated with the third system node；The is received by described
The step of the step of one system node signal, the reception second system node signal, the reception third system node signal
The step of and the switch process be repeated as many times, to form multiple history data sets；Based on more the multiple history
Each of data set history data set is determined described anti-with calculating position of the reversed beacon in the detecting field
Position to beacon relative to the first system node, the second system node and the third system node.
In embodiment, which further comprises: third party system；Computer server；Wherein, the journey thereon
Sequence instruction further makes the reversed beacon execute following steps: will be described in the determination when being executed by the computer
The position of reversed beacon is sent to the computer server；Wherein, the computer server includes referring to thereon with program
The non-volatile computer-readable medium of order makes the calculating when described program instruction is executed by the computer server
Machine server is based at least partially on the position of the reversed beacon of the determination to operate the third party system.
In another embodiment of the system, the third party system is selected from the group being made up of: electrical system；According to
Bright system；Heating, ventilation and cooling (HVAC) system；Security system；Domestic automation system；Industrial automation system.
Detailed description of the invention
Fig. 1 (a) provides the universal block figure of the embodiment of the reversed beacon in detecting field.
Fig. 1 (b) shows the embodiment that the positioning system of universal block of Fig. 1 (a) is replaced with the embodiment of various elements.
Fig. 2 provides the diagram that position determines how is carried out based on the movement relative to detection zone.
Fig. 3 provides the flow chart of the embodiment of method used for positioning, and this method is since transmitting the signal of node
And being shown or being utilized with the information of remote server or computer terminates.
Fig. 4 provides the universal block figure that may be used as the smart phone of reversed beacon.
Specific embodiment
Described in detail below and disclosure is shown by way of example, and not limitation.The description will clearly make this field skill
Art personnel can manufacture and use disclosed system and method, and describe several implementations of disclosed system and method
Example, reorganization, modification, substitution and use.Due to that can carry out in said structure without departing from the scope of the disclosure
Various changes, it is expected that, comprising in the de-scription or all the elements for showing in the accompanying drawings should be interpreted it is illustrative
Meaning and not restrictive.
System and method described herein provides the indoor locating system of reversed beacon mode, and it is true to can be used for position
Determine and there are detection technologies.As it is used herein, " reversed beacon " be include the transceiver operated together with system node and
Any device of computer, and the form of usually smart phone or other mobile computers.System described herein and side
Method utilizes the wireless signal of any device in accordance with communication protocol (including but not limited to BluetoothTM and Wi-Fi), to provide
Location based service, such as position are determining and are had existed by the way that technology is placed in single receiver node and is monitored
It serves as in any pre-existing wireless communication system given in environment for there are the basic fact fields of sensing system.
It is different by being specially designed for the traditional location tracing system for the network that the equipment that position determines is formed from depending on,
The system and method for the disclosure are usually monitored by some exterior arrangement systems by any general and pre-existing channel radio
The wireless communication in detecting field that the node of communication network is formed.Reversed beacon includes transceiver and computer, and detecting field is preferred
Ground includes almost any type of at least three existing wireless communications device.Existing wireless communications device, which forms to send, is reversed letter
Mark the detecting field of received signal.Reversed beacon process wireless signal is believed with creating available position from surrounding existing node
Breath.Then the information can be used in various ways, including but not limited to shown on computers or as the attached of external system
Add information (such as there is sensing).Such system usually more cost effective, adaptability and convenience than the prior art,
Because it utilizes pre-existing wireless communication device, wherein such device needs not be a part of self-contained communication network,
And the pre-existing device need not must also utilize identical communication protocol.
System and method described herein provides the indoor locating system of reversed beacon mode, and it is true to can be used for position
Determine and there are detection technologies.With in the environment using presetting the net formed with dedicated location determining device for detection
The traditional location tracing system of network is different, and system and method can be by serving as any node set of existing wireless communications device
It forms detecting field and is then operated in the set, regardless of whether described device anticipates on consolidated network and as tradition
Beacon operation in justice.
In the entire disclosure, term " computer ", which describes, usually realizes that the function of being provided by Digital Computing is (special
Be not computing function associated with microprocessor) hardware.Term " computer " is not limited to any certain types of meter
Device is calculated, and is intended to comprising all computing devices, including but not limited to: processing unit, microprocessor, personal computer, platform
Formula computer, laptop computer, work station, terminal, server, client, portable computer, handheld computer, intelligence
Energy mobile phone, tablet computer, mobile device, server zone, hardware device, minicomputer, mainframe computer, video-game control
(including but not limited to glasses, wrist are worn, pendant and clip fill for platform, handheld video games product and wearable computing device
It sets).
As it is used herein, " computer " is necessarily the abstract of the function of being provided by single computer installation, the list
Exemplary hardware and attachment of a computer installation equipped with the computer of specific role.Such as and unrestrictedly, this field is common
The skilled person will understand that the term " computer " about laptop computer includes by input unit (such as mouse based on pointer
Or Trackpad) provide function, and those skilled in the art will appreciate that for refer to enterprise-level server term " calculate
Machine " includes the function of being provided by redundant system (such as RAID drive and dual power supply).
Those of ordinary skill in the art it is also known that, the function of single computer can be distributed on multiple individual machines.
This be distributed in when specific machine executes particular task may be practical, or be able to carry out any other machine in every machine
The largely or entirely function and the available resources based on it at some time point of device are balanced when being assigned task.Therefore,
Terms used herein " computer " can refer to single, independent, self-contained device or work together or independently more
A machine, including but not limited to: network server group, " cloud " computing system, software services or other distributed or cooperating types
Computer network.
Those of ordinary skill in the art should also be understood that traditionally be not considered as " computer " some devices in certain feelings
Still the feature of " computer " is shown under condition.The case where such device executes the function of " computer " as described herein
Under, term " computer " includes such device to this extent.Such device includes but is not limited to: the network hardware,
Printing server, file server, NAS and SAN, load balancer, and can be at traditional " computer " aspect and this paper institute
State any other hardware of system and method interaction.
In the entire disclosure, term " software " refers to code object, programmed logic, imperative structures, data structure and determines
Justice, source code, executable and/or binary file, machine code, object code, compiling library, embodiment, algorithm, library or
Person can be executed or can be converted by computer processor can be (including but not limited to virtual by computer processor
Processor) or by using runtime environment, virtual machine and/or interpreter execute form any instruction or instruction set.
Those skilled in the art will appreciate that software can be routed to or be embedded into hardware (including but not limited to microchip),
And it is still considered as being " software " in disclosure meaning.For the purpose of this disclosure, software include but is not limited to store or
The instruction that can be stored in following item: RAM, ROM, flash memory BIOS, CMOS, mother and sons' plate circuit, hardware control, USB control
Device or host, peripheral equipment and controller, video card, Audio Controller, network interface card, BluetoothTMIt is filled with other wireless communications
It sets, virtual memory, storage device and related controller, firmware and device driver.It is expected that system and method described herein
Use the computer and computer software being generally stored inside in computer or machine readable storage medium or memory.
In the entire disclosure, term " network " typically refer to computer communicate with one another used voice, data or its
Its cordless communication network.Term " server " typically refers to the computer by network offering services, and " client " typically refers to
Access or the computer that the service provided by server by network is provided.It will be appreciated by the skilled addressee that term " clothes
Business device " and " client " can according to circumstances refer to the combination of hardware, software and/or hardware and software.The common skill in this field
Art personnel will be further understood that, term " server " and " client " also refer to the endpoint of network communication or network connection,
Including but not necessarily limited to web socket connects.Those of ordinary skill in the art will be further understood that " server " may include
Multiple software and/or hardware servers of transmission service or services set.Those of ordinary skill in the art will be further understood that, term
" host " can refer to the endpoint (for example, " distance host ") of network communication or network under occlusion, or can be
Refer to that server passes through network offering services by network offering services (" trustship website ") or access point under verb form.
In the entire disclosure, term " transceiver " is referred to hardware, circuit and/or software to generate and transmission is taken
The equipment of electromagnetic wave with message, signal, data or other information or one group of equipment.Transceiver can also include component to receive
Electric signal comprising such message, signal, data or other information simultaneously converts thereof into such electromagnetic wave.Term " receiver " refers to
Be that there is hardware, circuit and/or software to receive the electromagnetic wave of such transmitting and convert thereof into signal (usually telecommunications
Number) equipment or one group of equipment, can be from signal extraction information, signal, data or the other information.Term " transceiver " is usual
Refer to the device or system including both transceiver and receiver, such as but is not necessarily limited to two-way radio or wireless network routing
Device or access point.For the purpose of this disclosure, unless otherwise stated, all three terms should be understood it is interchangeable；
For example, term " transceiver " is interpreted as implying the presence of receiver, term " receiver " is interpreted as implying the presence of transceiver.
In the entire disclosure, term " node " refers to the beginning or end of network communication, usually has wireless receive
It sends out device and is the device of a part of communication network.Node is usually independent self-contained network equipment, such as wireless routing
Device, wireless access point, short range beacons etc..Node can be configured for as described herein detect network fexible unit or
Dedicated unit.Such as and unrestrictedly, node can be the ready-made wireless network dress with unique identification and fixed known location
The device for the wireless transmission capability set.In network, each node can serve as both transceiver and receiver of network signal.
Node is usually known as " system node " by the disclosure, is intended to refer to the section being present in the fixation position with known mark
Point, any additional dedicated hardware, circuit, component or the volume which is not usually required to for realizing system and method described herein
Journey, it is also possible to not necessarily be communicated on same cordless communication network with other system nodes in same system.For clarity,
Reversed beaconing nodes and " system node " the difference is that, it is needed for realizing the dedicated hard of system and method described herein
Part, circuit, component or some combinations of programming.In general, reversed beacon will use at least three system nodes, (node will be not required to
If a part of same wireless communication network) determine its position.
In the entire disclosure, term " detecting field " refers to the space for location based service.In general, this will
By that can be occupied with broadcast singal with the various nodes for being reversed beacon reception.Detecting field is preferably independent, self-contained position
It sets, such as room or house.Detecting field can be it is general or dedicated, including but not limited to for such as location tracking, deposit
In sensing, geography fence and safety.Such as and unrestrictedly, detecting field can be comprising all broadcast BluetoothTM
2.4GHz and can be by the calculating for such as computer, loudspeaker group and coffee machine that reversed beacon is connected in the form of wearable
The room of device.The connection between these devices and reversed beacon in detecting field does not need to establish to complete degree, because
The data transmitted between device in detecting field do not need to be reversed beacon decryption, but the transceiver in reversed beacon can be examined
It surveys the presence of network flow and identifies the source of the flow.Detecting field can be all with integrally include (such as any
The single field of whole building) or they can be it is segmentation and individuation (the corresponding subfield in such as each room,
But can jointly be identified as a field).The principal parameter of detecting field is the principal parameter of physical space, which includes being used for
The system node of location based service, as discussed in the disclosure.
Essentially all current system is all limited, because they need the beacon largely specially designed, quantity is usual
It is tens of sum numbers 20.System and method does not need many (if any) dedicated beacons, because their uses come from
The daily signal for preexisting in the ready-made device in facility.For example, existing wireless router, hot spot and wireless communication
Any other device can be used as " system node " in the reversed beacon system and method that are discussed herein.This makes this system
More than essentially all current system par and bigger property easy to install is provided, this is because having existed in many facilities
A large amount of infrastructure.Such as and unrestrictedly, can by the recording medium access control address location (MAC) at least once and
Store them via third party's service reversed beacon system is arranged, allow the MAC Address and associated position by
Other reversed beacon apparatus retrievals and use.
System node in system and method is simple wireless communication device, can be relative to fixed coordinate system
(for example, not opposite to each other) Urine scent simultaneously maintains known location, or can report itself in identical fixed coordinate system
Position.From each system node, reversed beacon reception one of the following or multiple: signal strength, the bit error rate, time delay or
Other signals attribute.Then, the computer positioned at reversed beacon or other places processes the signal into available information；Specifically
It says, can determine the related distance in position, angle or the other variables with reversed beacon relative to system node.Then described
Information can be reversed beacon utilization, or be sent to local computer or outer computer server to show in another system
Show or uses.The quantity of node it is expected the number of the transceiver of tracking or positioning independent of family size, room quantity or user
Amount.Relative to making a big purchase in large quantities for the system for needing detailed installation, single purchase is more likely to the consumer of cost sensitivity.
Substantially, the system and method being discussed herein allow by eliminating to the algorithm being exclusively used in operating position determination
The needs of the fixed beacon of processing are detected.On the contrary, the node in this system is Normal appearances.They are according to designed
Carry out wireless communication each other or with other systems in a network.When they did this, reversed beacon can be according to interference, letter
Number intensity or other definition factors determine relative position of the node relative to its own.Then the relative position can be supplied to
Processor, which knows the position of real space interior joint, and it is possible thereby to determines reversed beacon in real space
Position.
This system can also provide improved convenience.System installation is related to wireless communication device (such as platform simply
Formula machine or wireless speaker group) it is placed in environment in the position of user configuration.In some embodiments it is possible to pass through third party
Service enables this location information to be used.It does not need technically by wireless communications devices position in fixed position, because usually assuming that
Ordinary user will have relatively great amount of radio node in a room.In addition, specific node in position detection whether it is useless simultaneously
It is inessential, because its purpose is mainly to provide the wireless service except position detection.Position detection is secondary.Therefore, three-dimensional
Wireless speaker and adapter in sound system each act as the node in this system.However, the main purpose of each node be by
Voice signal is wirelessly transmitted to loudspeaker to reproduce；Detection is secondary.
Reversed beacon can be single piece of hardware, usually will be the form of wearable device or mobile device, and with biography
The beacon setting of system is compared, and needs additionally to obtain and the hardware of installation is less.But it be generally also with wait track or detect
The associated device of object.In several cases, due to target object be with may carry smart phone or wearing it is wearable
The people of device, therefore it is usually obvious immediately for connecting.Therefore, existing wireless communication system can be used for position ginseng
It examines, and this needs seldom or does not need extra work.In addition, the system and method for the disclosure are adaptive, because it
Can receive and signal and enhance according to this from newly added system node, but regardless of communication protocol how.
Because node data only needs to be compared with its own (that is, each node is preferably only known how only from it
Itself determines the necessary variable for being used for triangulation), so the signal of the different nodes of agreement, device from variation etc. is not
It will not influence reversed beacon output with amplitude.On the contrary, each node determines its own between reversed beacon in any manner
Particular variables (for example, distance).Then, which is supplied to central control for the public variable (being in this example distance)
Device, the central controller can position reversed beacon from these variables.This means that detecting field may include almost each germline
Any mixing of system node, uses different communication means, such as Wi-Fi and Bluetooth in reversed beacon systemTM.Such as
" distance " used in upper can be absolute distance or relative distance instruction between device, carry out self-test wherein can analyze
The set of " distance " of the node in is to estimate that reversed beacon is opposite and/or the position of absolute term." distance metric " include but
It is not necessarily limited to the instruction of signal strength, estimated distance is calculated and calculates in estimation detecting field between reversed beacon and given node
Distance change." position of calculating " can be the absolute or relative position of the reversed beacon in detecting field, wherein reversed beacon
Its position is calculated based on the distance metric to the node in the detecting field is known.
By way of example, and not limitation, if to invent new communication protocol, in view of deferring to new traffic agreement
System node can with Urine scent and keep to the new position of reversed beacon, the system and method being discussed herein will keep phase
It closes and function, reversed beacon still can be interacted with remaining node in system in the same way as previously.Therefore, these
System and method can be easily installed, and can be easily adaptable to new position or system node, but regardless of bottom communication
The variation occurred in technology or agreement.It should be appreciated that in another embodiment, existing beacon can also be interacted with reversed beacon
Accuracy is improved to provide more multivariable sum number strong point.
Following embodiment can be constructed around physical unit 108 (referred to here as reversed beacon 108) comprising transceiver
105 and computer 106, such as, but not limited to shown in Fig. 4.Reversed beacon 108 can make transceiver 105 and 106 groups of computer
It closes in a physical entity or separates.The transceiver 105 being communicatively coupled with computer 106 provides in detecting field 109
System node 103.Transceiver 105 receives signal from the system node 103 for including detecting field 109.In order to make reversed beacon 108 into
Row operation, detecting field 109 must include transmission will be by least three systems of 105 received signal of transceiver of reversed beacon 108
System node 103.
System node 103 can respectively defer to different communication protocol, including but not limited to BluetoothTM, Wi-Fi or
Other communication protocols that are currently known or being later discovered that.Therefore, and because of system node 103 it is usually fixed,
The great flexibility of user is given in terms of constituting detecting field 109, as illustrated in figs. 1A and ib.On the contrary, other system requirements users
It installs dedicated unit (beacon), for the consumer of cost sensitivity, this is unattractive option.
In fig 1 a, the abstract of the reversed beacon 108 in detecting field 109 is provided.Detecting field passes through example in Fig. 1 b
Unrestricted mode is extended, to show the particular instance of system node 103.
Transceiver 105 converts a signal into the data of the processing of computer components 106.Each data packet generally includes at least one
The intensity of a system node identifier and system node 103 broadcast singal at that time.
Computer 106 receives and processes data, returns to five possibility of reversed beacon 108 relevant to target room 109
One during position is determining.Five kinds of possibilities are: it is close, it leaves, and it is in a room, static and mobile, as shown in Figure 2.In order to true
Fixed to exist, the existing system including standardizing beacon determines available latest data from the angle of amplitude.On the contrary, this system and
The historical data of each node of the angle changing rate of method from directed movement and/or distance estimations is made decision, thus make its with
Amplitude is unrelated.In this way, the system node 103 that these system and method can be used for having various communication protocols.Unless
Ensure that data packet complies with standard communication protocol, it is all these otherwise which also eliminates the needs to additional configuration, equipment or calibration
Additional configuration, equipment or calibration can all generate additional time and money cost.
Fig. 2 provides the diagram of the algorithm embodiment 201 determined based on the position of movement relevant to detecting field.Fig. 3 is mentioned
Supplied the diagram of method 301 used for positioning, this method with since transmitting the signal of node 103 and with another server or
The information of computer, which shows or utilizes, to be terminated.
In order to determine the output determined for position, embodiment utilizes all processes as shown in Figure 3.Firstly, transceiver
105 receive 303 one or more signals from each of three or more system nodes 103；Second, the transceiver will
The signal conversion 305 is at the data about the signal；Third, the data are from the transceiver 105 transmitting 304 to calculating
Machine 106；4th, computer 106 runs the data by some analytic processes, with the reversed beacon of determination and this group of system node
Relative position；Wherein, system node does not need specially modified to be used together with reversed beacon.
The computer 106 of the physical location or other real space values that determine reversed beacon 108 can be local network meter
Calculation machine or wireless computer server 106.Local networked computer 106 can be with 105 physical connection of transceiver or disconnected.
The output that local networked computer 106 can be shown to user, to provide information for decision for user.Local network meter
The output of calculation machine 106 can also be used to notify the dynamic of local authority (including but not limited to intelligent lamp, heating system or cooling system)
Make.The information can be used for long-range or network-based mechanism by wireless computer server 106, including but not limited to can be
The system operated in cloud computing.The signal strength of each system node 103 is preferably by its RSSI (received signal strength indicator
Symbol) it provides.
In the embodiment of reversed beacon 108, transceiver 105 may be coupled to computer 106, and wherein transceiver 105 can
To receive signal and by the signal processing at data, and computer 106 processes data into available information.Computer 106
Wireless communication be can use to be used cooperatively with other systems (including but not limited to lighting system) in family, or can be limited
In directly displaying for a user information.The communication means is preferably BluetoothTMLow energy 2.4GHz；But this be not must
It needs.Any available wireless communication protocol can be used.
In the embodiment of reversed beacon 108, reversed beacon 108 includes wearable device comprising transceiver 105 and meter
Calculation machine 106, wherein received signal can be all processed into available information in identical reversed beacon apparatus 108.Institute
User can be visually shown to by small sized monitor by stating information.Wearable device can also connect with other communication protocol interfaces
It connects to be communicated with other systems (including but not limited to lighting system) in family.In alternative embodiments, data can pass through
External network is transmitted to be processed into information.
In the embodiment of reversed beacon 108, smart phone 108 or all as shown in Figure 4 including necessary transceiver
105 and other mobile devices 108 of mobile device 108 of 106 element of computer can be loaded with special software, to allow it
The signal collected from three or more system nodes 103 in detecting field 109 is handled, and determines it 108 relative to system section
The position of point 103, as described herein.Smart phone 108 will receive signal and process the signal into available information, and the information
It can be shown by the screen of smart phone to user.Mobile phone 108 can also and BluetoothTMOr Wi-Fi interface connection with
Other systems (including but not limited to lighting system) communication in family, to allow the reversed tracking of beacon 108 for use as such attached
The control of adding system.
In the embodiment of reversed beacon 108, the device 108 including transceiver 105 and minicomputer 106 be can connect
To will receive signal without inanimate object.Airborne computer 106 is by the signal processing at data.Airborne computer 106 can be with
It can be transmitted by wireless network and remotely handled for processing data into available information or the data.Then, device
108 can be connect with blue tooth interface with other system communications in family, including but not limited to opening door (such as, but not limited to
Garage door) or opening electrical system, lamp and/or heating, ventilation and/or air-conditioning (" HVAC ") system.
In the embodiment of detecting field 109, detecting field 109 includes any amount of system node 103.System node 103
Can all of identical communication protocol or they different communication protocol can be used.Isomery field 109 will be more common,
Because family usually holds the device of different communication methods, such as Wi-Fi wireless router and BluetoothTMLoudspeaker group.
In the embodiment of detecting field 109, multiple detecting fields 109 can be set to track each independent room in family
Between.
In the embodiment of monitor, smart phone can be equipped with the application program of the user interface for the system of serving as.It can
With the information handled from application program display, and user can customize setting, check statistical data and hand over manually with system
Mutually.
In the embodiment of monitor, can acoustically or in tactile rather than visually complete display.It will count
After being processed into available information, when user has entered detecting field 109, reversed beacon 108 can send to user and prompt.This
Kind prompt includes but is not limited to that different modes is vibrated for different states, and user can have or broadcast according to the state of user
Different tunes is put, wherein tune will be played when state changes.
In the embodiment of monitor, the system of monitor can be set around house with aobvious to one or more users
Show information.Various monitors may be coupled to wireless network, and each monitor can according to its position in house or
Person watches its people at most to show different information.It can be matched by smart mobile phone application program or some other user interface
Set all monitors.
In the embodiment of algorithm, detecting field 109 will be calibrated in setting and periodically be recalibrated to keep system
Accuracy.The algorithm will make certain variables keep variation to adapt to calibrate, such as threshold value or sample size.In alternate embodiment
In, in terms of algorithm may include machine learning or evolution, make it possible to the environment for adapting to variation.
In the embodiment of algorithm, algorithm is present in device 108 identical with transceiver 105 as the firmware on computer
On.It can be replicated to allow multiple detecting fields 109 to be present in family.In alternative embodiments, algorithm can be with system
Rest part separates and is present on computer server (such as cloud).Data can be sent to algorithm by wireless network,
Algorithm will handle data and available information sent back to user.Communication means can be completed in various ways, including but not limited to
Wi-Fi and BluetoothTM。
In the embodiment of algorithm, reversed beacon 108 can be enhanced by additional sensing device 110, additional sensing dress
Including but not limited to Inertial Measurement Unit 110 (such as gyroscope), global positioning system (" GPS ") and rangefinder are set, they
The accurate of output can be increased by allowing reversed beacon 108 more effectively to handle the noise in wireless signal and exceptional value
Degree.Described device 110 can be used as attachment and be connected to reversed beacon 108, and can according to need its data of parallelization.Its shape
State or output can be exported with the reversed beacon in second layer decision tree to be integrated, based on the data from wireless signal
Combination with the data from sensor 110 obtains more accurate information.
In the embodiment of network, existing detecting field 109 is connect with reversed 108 interface of beacon, and reversed beacon can pass through
Wireless network sends data or available information to be handled, be distributed or be stored.
In the embodiment of network, can in external system known to network by cryptographic protocol come visualized data.
In the embodiment of network, reversed beacon 108 can be transmitted based on new signal to detect new system node
103.The system node 103 can be added to detecting field 109 and be incorporated into the algorithm of given user's input.
As described herein, reversed beacon 108 existing wireless communications device can be used determine reversed beacon 108 whether position
In the region that Yu Youyi group wireless communication device defines.Such as and unrestrictedly, give by around the region periphery section
The regions of 103 definition of point know that the reversed beacon 108 in such region can be based on becoming from the signal strength of each node 103
Gesture distinguishes that it is in the periphery of the given area or to be located at except the given area.This means that reversed beacon
108 do not need to calibrate and can be used the node 103 that is communicated via different agreement to operate.
Existing wireless communications device in a possible exemplary service condition of the technology, in the environment of shopping center
Can be used for determining people may be in which shop.Shop usually has wireless camera, point of sale device and/or wireless router,
And the inner space that is defined by these nodes 103 can be used to limit the detecting field 109 in shop.Make when using smart phone
When advancing in market for the customer of reversed beacon 108, smart phone 108 can determine that it is close to the shop, far from the quotient
Shop is also above the range in the shop (for example, if the device in shop can not for related smart phone in the shop
See).Such system provides class in not needing additional hardware or the deployment of improvement/upgrading pure software using existing infrastructure
Like the function of beacon, additional hardware or improvement/upgrading are needed for other short distance marketing activities based on beacon.Pass through collection
At the software platform on reversed beacon apparatus 108, existing wireless communications infrastructure can be used for indoor positioning ability.
In another exemplary service condition, feedback can be provided to advanced occupancy detection system, wherein based on reversed
Believe that the accuracy of calibration method can be higher than the advanced accuracy for occupying detection system.The system can utilize existing nothing again
Line communication device determines that people is to provide feedback to advanced occupancy system, which can make in space or outside space
The information that period collects in the space is in used in known people to enhance its functionality in the following detection.Because of reversed letter
Mark 108 can be operated together with a variety of different wireless communication devices without configuring described device to and reversed beacon
108 are used together, so such system can be easier and more inexpensively dispose, and can be than the solution of the prior art
It is broadly deployed to existing system, the solution of the prior art needs to configure the device for including in system.
As described above, reversed beacon 108 and current present beacon (such as Apple in the marketTMBeacon) it is different.Existing skill
Art beacon request device initiatively interacts/communication with beacon.However, in the disclosure, reversed beacon 108, which is served as, to be believed with reversed
Mark the passive listener of the signal of communication independently occurred.Reversed beacon 108 does not need other friendships with these other nodes 103
Mutually to determine its position relative to them, and apparent additional communication load is not applied to system.
It should be noted that method described herein is descriptive, and any common skill of basic trigonometry art of mathematics
Art personnel can derive location solution.
It should be noted that RSSI is usually measured by the receiver in any communication system.According to the bandwidth of receiver, transmission frequency
And antenna gain, RSSI can highly precisely measure distance and differential distance away from transmitter.For certain systems, such as
BLE(BluetoothTMLow energy), it may not be accurate measurement, and as the increase of distance may become less quasi-
Really.Specific method will consider the accuracy of communication system that it is relied on.
Described reversed beacon system allows in systems using existing radio node, wherein reversed beacon can be opposite
Itself is positioned in the inner space created by described device, without any configuration from those devices.This allow using
Reversed beacon itself establishes the positioning system based on reversed beacon, and haves no need to change reversed beacon node used for positioning.
Then, reversed beacon can by its position determine for numerous purposes, including indoor GPS, advanced take sensor system feedback,
Closely marketing etc., without changing the infrastructure having been positioned at facility.
It should be appreciated that any range, value, attribute or the characteristic that provide for any single component of the disclosure can with it is right
It is used interchangeably in any range, value, attribute or the characteristic that any other component of the disclosure provides, with shape in the case of compatibility
At the embodiment of the limit value with each component, as described in herein throughout.In addition, unless otherwise stated, to belong to class
Or the range of classification offer also can be applied to type or the category member of the category class.
Although the description for having been combined some embodiments discloses the present invention, including those are presently considered to be preferred implementation
The embodiment of example, but detailed description is intended to illustrative, is not construed as limiting the scope of the present disclosure.Such as this field
What those of ordinary skill was understood, the embodiment other than the embodiment being described in detail herein is included in the invention.Not
In the case where being detached from the spirit and scope of the present invention, described embodiment can be modified and be changed.
Claims (20)
1. one kind in detecting field for positioning reversed letter calibration method, comprising:
Reversed beacon including transceiver and computer is provided；
Computer；
The multiple system nodes for being deployed as being formed detecting field are provided；
The reversed beacon is moved in the detecting field；
The first system node signal is received from the first system node in the multiple system node at the transceiver；
Second system node signal is received from the second system node in the multiple system node at the transceiver；
Third system node signal is received from the third system node in the multiple system node at the transceiver；
By the first system node signal, the second system node signal and the third system section at the computer
Point signal is converted to history data set, and the history data set includes:
The first system node identifier and the first system nodal distance associated with the first system node measurement；With
Second system node identifier and second system nodal distance associated with second system node measurement；
Third system node identifier and third system node distance metric associated with the third system node；
The step of the step of by the reception the first system node signal, the reception second system node signal, the reception
The step of third system node signal and the switch process are repeated as many times, to form multiple history data sets；
Based on each of more the multiple historical data concentration history data set to calculate the reversed beacon described
Position in detecting field determines the reversed beacon relative to the first system node, described second at the computer
The position of system node and the third system node.
2. according to the method described in claim 1, wherein, the reversed beacon includes mobile device.
3. according to the method described in claim 2, wherein, the reversed beacon includes smart phone or tablet computer.
4. according to the method described in claim 2, wherein, the reversed beacon includes wearable computer device.
5. according to the method described in claim 1, wherein, the first system node is selected from the group being made up of: computer,
Network equipment and smart machine.
6. according to the method described in claim 1, further including determining the reversed beacon relative to described at the computer
The position of detecting field determines state.
7. the position determines that state is selected from the group being made up of according to the method described in claim 6, wherein: it is close, from
Open, in a room, it is static and mobile.
8. according to the method described in claim 1, wherein, the computer includes local networked computer.
9. according to the method described in claim 8, wherein, the reversed beacon includes the local networked computer.
10. according to the method described in claim 1, wherein, the computer includes being communicatively connected to by telecommunication network
The wireless computer server of the transceiver.
11. according to the method described in claim 1, further comprising:
Third party system is provided；
The position of the reversed beacon determined in the determining step is based at least partially on to operate the third
Method, system.
12. according to the method for claim 11, wherein the third party system is selected from the group being made up of: electrical system
System；Lighting system；Heating, ventilation and cooling (HVAC) system；Security system；Domestic automation system；Industrial automation system.
13. according to the method described in claim 1, wherein, the detecting field is by using the association selected from group consisting of
The wireless communication of view is formed: BluetoothTM, BluetoothTMLow energy, ANT, ANT+, WiFi, Zigbee, Thread and Z-
Wave。
14. according to the method described in claim 1, wherein, system node described at least one of the multiple system node
The communication protocol different from the other system nodes of at least one of the multiple system node is configured with to be communicated.
15. according to the method described in claim 1, wherein, the detecting field is arranged in space indoors, and the determining step
Suddenly further comprise: based on each of more the multiple historical data concentration history data set to the reversed beacon
Position in the detecting field carries out triangulation, determines the reversed beacon relative to described first at the computer
The position of system node, the second system node and the third system node.
16. according to the method described in claim 1, wherein, the method is by the reversed beacon only passively from the multiple
System node receives wireless communication signals to execute.
17. according to the method described in claim 1, wherein, the method is by the reversed beacon initiatively from the multiple system
System node receives wireless communication signals to execute.
18. a kind of system for positioning reversed beacon in detecting field, comprising:
Computer；
Multiple system nodes are disposed to form detecting field；
Reversed beacon, including transceiver, computer and thereon with program instruction non-volatile computer readable storage medium storing program for executing,
When being executed by the computer, described program instruction makes the reversed beacon execute following steps:
The first system node signal is received from the first system node in the multiple system node at the transceiver；
Second system node signal is received from the second system node in the multiple system node at the transceiver；
Third system node signal is received from the third system node in the multiple system node at the transceiver；
The first system node signal, the second system node signal and the third system node signal are converted to and are gone through
History data set, the history data set include:
The first system node identifier and the first system nodal distance associated with the first system node measurement；With
Second system node identifier and second system nodal distance associated with second system node measurement；
Third system node identifier and third system node distance metric associated with the third system node；
The step of the step of by the reception the first system node signal, the reception second system node signal, the reception
The step of third system node signal and the switch process are repeated as many times, to form multiple history data sets；
Based on each of more the multiple historical data concentration history data set to calculate the reversed beacon described
Position in detecting field determines the reversed beacon relative to the first system node, the second system node and described
The position of third system node.
19. system according to claim 18, further comprises:
Third party system；
Computer server；
Wherein, described program instruction thereon further executes the reversed beacon following when being executed by the computer
Step:
The computer server is sent by the position of the reversed beacon of the determination；
Wherein, the computer server includes non-volatile computer-readable medium thereon with program instruction, when described
Program instruction makes the computer server be based at least partially on the determination when being executed by the computer server
The position of the reversed beacon operates the third party system.
20. system according to claim 19, wherein the third party system is selected from the group being made up of: electrical system
System；Lighting system；Heating, ventilation and cooling (HVAC) system；Security system；Domestic automation system；Industrial automation system.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
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| US201662437412P | 2016-12-21 | 2016-12-21 | |
| US62/437,412 | 2016-12-21 | ||
| US15/600,380 | 2017-05-19 | ||
| US15/600,380 US10064013B2 (en) | 2015-09-16 | 2017-05-19 | Detecting location within a network |
| PCT/US2017/067972 WO2018119277A1 (en) | 2016-12-21 | 2017-12-21 | Reverse-beacon indoor positioning system using existing detection fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110100187A true CN110100187A (en) | 2019-08-06 |
Family
ID=62627611
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780079704.4A Pending CN110100187A (en) | 2016-12-21 | 2017-12-21 | Use the reversed beacon indoor locating system of existing detecting field |
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| EP (1) | EP3542178A4 (en) |
| JP (1) | JP2020504818A (en) |
| KR (1) | KR20190101378A (en) |
| CN (1) | CN110100187A (en) |
| CA (1) | CA3047820C (en) |
| WO (1) | WO2018119277A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3542178A4 (en) | 2020-06-17 |
| KR20190101378A (en) | 2019-08-30 |
| EP3542178A1 (en) | 2019-09-25 |
| WO2018119277A1 (en) | 2018-06-28 |
| JP2020504818A (en) | 2020-02-13 |
| CA3047820A1 (en) | 2018-06-28 |
| CA3047820C (en) | 2022-11-22 |
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