CN108646214A - Range-measurement system based on customed ranging protocol - Google Patents
Range-measurement system based on customed ranging protocol Download PDFInfo
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- CN108646214A CN108646214A CN201810441147.2A CN201810441147A CN108646214A CN 108646214 A CN108646214 A CN 108646214A CN 201810441147 A CN201810441147 A CN 201810441147A CN 108646214 A CN108646214 A CN 108646214A
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- range
- ranging
- antenna
- range unit
- transceiver
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Classifications
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present invention proposes a kind of range-measurement system based on customed ranging protocol, including：An at least range unit, the range unit is used to carry out ranging by UWB signal and communicate, and carries out ranging by TW ToF modes；The range unit includes processor, transceiver, antenna, setup module, ID registers and communication interface, wherein the processor is for carrying out data processing；The transceiver is connected to the processor, the transceiver is also connect with the antenna, the transceiver is used to export distance measurement request by the antenna, while also receiving other range unit distance measurement requests by the antenna, and the antenna is for carrying out data transmission；The setup module is connected to the processor, and the setup module is used to be arranged the operating mode of the range unit；The ID registers are nonvolatile memory, the ID identifiers for storing all range units；The communication interface is connect with range unit described in other, for carrying out many-one ranging.
Description
Technical field
The present invention relates to range-measurement system technical fields, in particular to a kind of ranging based on customed ranging protocol
System.
Background technology
Currently, with the quick increase of data service and multimedia service, demand of the people to positioning with navigating increasingly increases
Greatly, especially in complicated indoor environment, such as airport hall, exhibition room, warehouse, supermarket, library, underground parking and mine
Deng, it is often necessary to determine mobile terminal or its holder, the location information of facility and article indoors.It is directed to positioning distance measuring at present
Mainly comprising ultrasonic measuring distance technology, bluetooth ranging technology, radio frequency identification ranging technology, Wi-Fi ranging technologies etc., but each
Positioning distance measuring mode all has certain limitation, and wherein ultrasonic wave is very big due to being influenced by multipath effect and non-line-of-sight propagation,
A large amount of bottom hardware facility investment is needed simultaneously, thus ranging technology cost based on ultrasound is very high；Bluetooth ranging skill
Bluetooth devices, the price of equipment are typically more expensive in art, and poor to the adaptability of complex space environment, are easily believed by noise
Number interference；The operating distance of radio frequency identification ranging technology is short, does not have communication capacity, and be not easy to be integrated into other functions
Among system；In Wi-Fi ranging technologies, since transceiver is typically only capable to the region within 90 meters of covering radius, thus it is easy to
Precision is influenced by the interference of other signals, energy consumption is generally also higher.
UWB (Ultra Wide Band, ultra wide band) technologies as it is a kind of it is completely new, have with conventional communication techniques it is very big poor
Different New Communication Technology, it need not use the carrier wave in traditional communication system, by sending and receiving with nanosecond or nanosecond
Grade ultra-narrow pulse below carrys out transmission data, to the bandwidth with GHz magnitudes.Radio ultra wide band system and traditional narrowband systems phase
Than having that penetration power is strong, low in energy consumption, anti-multipath effect is good, safe, system complexity is low, can provide and is accurately positioned precision
Etc. a variety of advantages, thus it is highly suitable for carrying out positioning distance measuring to static or mobile object, people in indoor environment.
Invention content
In consideration of it, the present invention proposes a kind of range-measurement system based on customed ranging protocol, it is intended to solve to improve ranging
The problem of range accuracy of system.
On one side, the present invention proposes a kind of range-measurement system based on customed ranging protocol, including：
An at least range unit, the range unit is used to carry out ranging by UWB signal and communicate, and passes through TW-ToF
Mode carries out ranging；The range unit includes processor, transceiver, antenna, setup module, ID registers and communication interface,
Wherein, the processor is for carrying out data processing；The transceiver is connected to the processor, the transceiver also with it is described
Antenna connects, and the transceiver is used to export distance measurement request by the antenna, while also receiving other surveys by the antenna
Away from device distance measurement request, the antenna is for carrying out data transmission；The setup module is connected to the processor, the setting
Module is used to be arranged the operating mode of the range unit；The ID registers are nonvolatile memory, all for storing
The ID identifiers of range unit；The communication interface is connect with range unit described in other, for carrying out many-one ranging.
Further, the range unit includes power module, the power module and the processor, transceiver, day
Line, setup module, ID registers are connected with communication interface.
Further, the range unit is provided with power interface, and the power interface with external power supply for connecting.
Compared with prior art, beneficial effects of the present invention are：UWB signal is provided through to carry out ranging and communicate, and
The range unit of ranging is carried out by TW-ToF modes, and multiple range units can mutually communicate ranging, greatly improve
The range accuracy of range-measurement system.
Further, this range-measurement system has two-way flight time ranging, and can be simultaneously in many range units
Between communicated, detected data result can be used for calculating the position of each equipment room relative to each other so that this
System has long-range consecutive tracking ability of tracking, and Z can be continuously maintained the accurate positionin between device.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol；
Fig. 2 is the pulse ultra-broad band channel radio of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol
Believe schematic diagram of mechanism；
Fig. 3 is the TW-ToF rangings of the UWB of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol
Schematic diagram；
Fig. 4 is that the two-way flight time of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol is accurate
Ranging schematic diagram；
Fig. 5 many-to-one surveys between the device of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol
Away from positioning schematic diagram.
Specific implementation mode
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig.1, it is the structure of the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol
Schematic diagram.The embodiment of the present invention proposes a kind of range-measurement system based on customed ranging protocol, including：An at least ranging fills
It sets, the range unit is used to carry out ranging by UWB signal and communicate, and carries out ranging by TW-ToF modes；The survey
Include processor, transceiver, antenna, setup module, ID registers and communication interface away from device, wherein the processor is used for
Carry out data processing；The transceiver is connected to the processor, and the transceiver is also connect with the antenna, the transceiver
For exporting distance measurement request by the antenna, while other range unit distance measurement requests are also received by the antenna, it is described
Antenna is for carrying out data transmission；The setup module is connected to the processor, and the setup module is for being arranged the survey
Operating mode away from device；The ID registers are nonvolatile memory, the ID identifiers for storing all range units；
The communication interface is connect with range unit described in other, for carrying out many-one ranging.The range unit includes power supply mould
Block, the power module are connect with the processor, transceiver, antenna, setup module, ID registers and communication interface.It is described
Range unit is provided with power interface, and the power interface with external power supply for connecting.
It carries out ranging it is understood that being provided through UWB signal and communicates, and ranging is carried out by TW-ToF modes
Range unit, and multiple range units can mutually communicate ranging, greatly improve the range accuracy of range-measurement system.
It is respectively the range-measurement system provided in an embodiment of the present invention based on customed ranging protocol in conjunction with shown in Fig. 2-5
Pulse ultra-broad band wireless communication mechanism schematic diagram, UWB TW-ToF range measurement principles figure, two-way flight time precision ranging signal
Many-to-one ranging and positioning schematic diagram between figure, device.
Specifically, range unit emits wireless signal using nanosecond burst pulse, by reinforcing signal strength modulation, with
Reach relatively long distance, the wireless communication of high speed.Device utilizes, the time domain impulse of stop (nanosecond) is directly realized by modulation,
Directly modulation intelligence process is placed on a very wide frequency band in transmission process and is carried out, and with lasting during this
Time by the time risen, the time domain impulse of stop is fallen after rise, calculates between stream oriented device to determine the frequency range occupied by bandwidth
Accurate distance.
The present apparatus use UWB technology pattern it is insensitive to channel fading, transmitting power spectrum density low (micropower),
Low interception capability, system complexity be low, multipath anti-interference ability, and not with precision height, and device can provide the survey of Centimeter Level
Away from precision.
Specifically, two-way flight time ranging and communication, calculate according to the mutual distance information between multiple devices
Relative position between device.
Two-way flight time (TW-ToF) ranging operation principle：
Different with ultrasonic wave or laser radar signal, UWB pulses can pass through wall and dense leaf.Flown using two-way
Row time (TW-ToF) mode carries out ranging between multiple range units, and accuracy of measurement refreshes up to 2.2 ± 0.1 centimetres
Rate is up to 125Hz.
Specifically, distance measurement request to be initiatively sent to the module of position A mounted on Q module, A will be automated toed respond to from request
Any distance measurement request that person receives.Q is in QTx M0Place sends request data package, and A is after delay time f in ARx M0Receive pulse.A
In ATx M1In response, Q is in Q for one pulse of upper transmittingRx M1Place receives it after the delay of f.
Calculate the wireless pulses transmission time f between Q and A：
δA=ATx M1-ARx M0, then just obtain the distance between Q and A dδA：
dδA=f*C
Wherein, constant C is the light velocity in vacuum:299792458 meter per seconds
Specifically, flight time precision ranging, device A sends distance measurement request S to device B, and device B is by sending one
Ranging response S1 acknowledges receipt of the request of device A, device A using this ranging response come device for accurately measuring A and device B it
Between the radio-frequency pulse two-way flight time, then calculate accurate distance between the two.
One unique identifier is set in the nonvolatile memory being arranged in range unit, this equipment can be automatic
Any distance measurement request that it can be received is responded.Device be also used as the connection of off host, be used only for ringing
The equipment answered uses, all data that device itself is received, including distance measurement request, ranging response or be other information
Data report is to the micro processor device of periphery, many-to-one ranging and positioning function between realization device.The mapping of range unit
Relationship be 3 pair 1, i.e., A, B, C only with G rangings.
It is understood that this range-measurement system has two-way flight time ranging, and can be simultaneously in many rangings
It is communicated between device, detected data result can be used for calculating the position of each equipment room relative to each other, and then make
It obtains this system and has long-range consecutive tracking ability of tracking, and Z can be continuously maintained the accurate positionin between device.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (3)
1. a kind of range-measurement system based on customed ranging protocol, which is characterized in that including：An at least range unit, the survey
It is used to be communicated by UWB signal away from device, and ranging is carried out by TW-ToF modes；
The range unit includes processor, transceiver, antenna, setup module, ID registers and communication interface, wherein described
Processor is for carrying out data processing；The transceiver is connected to the processor, and the transceiver is also connect with the antenna,
The transceiver is used to export distance measurement request by the antenna, while also receiving other range unit rangings by the antenna
Request, the antenna is for carrying out data transmission；The setup module is connected to the processor, and the setup module is for setting
Set the operating mode of the range unit；The ID registers are nonvolatile memory, for storing all range units
ID identifiers；The communication interface is connect with range unit described in other, for carrying out many-one ranging.
2. the range-measurement system according to claim 1 based on customed ranging protocol, which is characterized in that the range unit
Including power module, the power module and the processor, transceiver, antenna, setup module, ID registers and communication interface
Connection.
3. the range-measurement system according to claim 1 based on customed ranging protocol, which is characterized in that the range unit
It is provided with power interface, the power interface with external power supply for connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441147.2A CN108646214A (en) | 2018-05-10 | 2018-05-10 | Range-measurement system based on customed ranging protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441147.2A CN108646214A (en) | 2018-05-10 | 2018-05-10 | Range-measurement system based on customed ranging protocol |
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| Publication Number | Publication Date |
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| CN108646214A true CN108646214A (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810441147.2A Withdrawn CN108646214A (en) | 2018-05-10 | 2018-05-10 | Range-measurement system based on customed ranging protocol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661737A (en) * | 2019-11-01 | 2020-01-07 | 深圳市度彼电子有限公司 | Distance testing equipment and system |
| CN111965655A (en) * | 2019-05-02 | 2020-11-20 | 广州印芯半导体技术有限公司 | Multimedia system applying time-of-flight ranging and operation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111965655A (en) * | 2019-05-02 | 2020-11-20 | 广州印芯半导体技术有限公司 | Multimedia system applying time-of-flight ranging and operation method thereof |
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Application publication date: 20181012 |