CN109819465A - A kind of indoor RRU positioning diagnosticing method, apparatus and system based on passive RFID tags - Google Patents
A kind of indoor RRU positioning diagnosticing method, apparatus and system based on passive RFID tags Download PDFInfo
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- CN109819465A CN109819465A CN201910046387.7A CN201910046387A CN109819465A CN 109819465 A CN109819465 A CN 109819465A CN 201910046387 A CN201910046387 A CN 201910046387A CN 109819465 A CN109819465 A CN 109819465A
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Abstract
The invention discloses a kind of indoor RRU positioning diagnosticing method, apparatus and system based on passive RFID tags, this method comprises the following steps: mobile terminal emits RFID poll CF signal to the detection probe being fixed on Remote Radio Unit, and the detection probe includes the filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit；The back wave of the RFID poll CF signal is received, the back wave carries the feedback information of detection probe；The position for being fixed with the Remote Radio Unit of the detection probe is determined according to the back wave.The present invention can position the position of Remote Radio Unit by the interaction between mobile terminal and detection probe, convenient for safeguarding to Remote Radio Unit.
Description
Technical field
The present invention relates to field of communication technology, especially a kind of indoor level diagnosis side RRU based on passive RFID tags
Method, apparatus and system.
Background technique
RRU is a kind of common base station 2G, 3G, 4G or 5G remote device of mobile communication indoor distribution system, especially in 5G
In network, after electrification fiber optic stretch, Chang Jiang RRU is fixed on ceiling.Since 5GRRU is laid intensively, almost every 5 meters
One will be placed, it is therefore desirable to be regularly maintained, to ensure its normal work.But the ornament on ceiling is easy RRU
Block, make RRU look for positioning and diagnostic work is very difficult, maintenance personnel needs to expend many times thus.Have on the market
The product of Asset Inventory is carried out by RFID label tag, but can not be applied on RRU, because the high power that RRU itself is issued is penetrated
Frequency signal can interfere it and can not work normally, while the product can not judge the working condition of RRU, so
So far it there is no effective solution method.
Summary of the invention
The present invention provides a kind of indoor RRU positioning diagnosticing method, apparatus and system based on passive RFID tags, passes through shifting
Interaction between dynamic terminal and detection probe can position the position of Remote Radio Unit, convenient for tieing up to Remote Radio Unit
Shield.
According to the first aspect of the invention, the present invention provides a kind of indoor RRU level diagnosis based on passive RFID tags
Method includes the following steps: mobile terminal to the detection probe transmitting RFID poll carrier frequency letter being fixed on Remote Radio Unit
Number, the detection probe includes the filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit；Described in reception
The back wave of RFID poll CF signal, the back wave carry the feedback information of detection probe；It is true according to the back wave
Surely it is fixed with the position of the Remote Radio Unit of the detection probe.
It is preferably, described that the position for being fixed with the Remote Radio Unit of the detection probe is determined according to the back wave,
It specifically includes: calculating the signal strength of the back wave, calculate the detection probe to mobile terminal according to the signal strength
Distance, based on it is described distance determine be fixed with the detection probe Remote Radio Unit position.
Preferably, the feedback information includes the identification information for being fixed with the Remote Radio Unit of the detection probe, institute
The position for determining according to the back wave and being fixed with the Remote Radio Unit of the detection probe is stated, is specifically included: from described anti-
The identification information is demodulated in ejected wave, determines Remote Radio Unit corresponding to the identification information according to the back wave
Position.
Preferably, further include following steps: starting preset Remote Radio Unit detection module, pass through the remote radio
Unit detection module detects the working condition for the Remote Radio Unit for having determined that position.
Preferably, further include following steps: when detecting working condition exception, issuing alarm.
Preferably, mobile terminal is only communicated with single detection probe in the given time, when detection probe to movement
When the distance of terminal is greater than preset distance, the lower detection probe of mobile terminal poll.
Preferably, the antenna of the RFID label tag has preset standing wave frequency.
Preferably, when the feedback information for not receiving detection probe in the given time, mobile terminal enters battery saving mode.
According to the second aspect of the invention, the present invention provides a kind of indoor RRU level diagnosis based on passive RFID tags
Device, comprising: transmitting module, for emitting RFID poll CF signal to the detection probe being fixed on Remote Radio Unit,
The detection probe includes the filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit；Receiving module is used
In the back wave for receiving the RFID poll CF signal, the back wave carries the feedback information of detection probe；Determine mould
Block, for determining the position for being fixed with the Remote Radio Unit of the detection probe according to the back wave.
According to the third aspect of the invention we, a kind of indoor RRU level diagnosis system based on passive RFID tags of the present invention,
Including baseband processing unit, multiple Remote Radio Unit being connected with the baseband processing unit, it is fixed on the remote radio
Detection probe and mobile terminal on unit, the detection probe include RFID label tag and for filtering out Remote Radio Unit
The filter of radiofrequency signal, the mobile terminal include RFID card reader module；The mobile terminal configuration is used for: to being fixed on
Detection probe on Remote Radio Unit emits RFID poll CF signal, receives the reflection of the RFID poll CF signal
Wave, the back wave carry the feedback information of detection probe, are fixed with the detection probe according to back wave determination
The position of Remote Radio Unit.
In the present invention, the filter for filtering out the radiofrequency signal of Remote Radio Unit is provided in detection probe, with
The signal interference of Remote Radio Unit is filtered out, on this basis, mobile terminal passes through poll carrier signal excitation-detection probe, and
The position of corresponding Remote Radio Unit is positioned, according to back wave convenient for safeguarding to Remote Radio Unit.
Detailed description of the invention
Fig. 1 is that the structure of the indoor RRU level diagnosis system based on passive RFID tags of an embodiment of the present invention is shown
It is intended to；
Fig. 2 is the flow chart of the indoor RRU positioning diagnosticing method based on passive RFID tags of an embodiment of the present invention；
Fig. 3 is that the structure of the indoor RRU level diagnosis device based on passive RFID tags of an embodiment of the present invention is shown
It is intended to.
Specific embodiment
Before the present invention is specifically described, it is necessary to the system that the present invention is applicable in is introduced, as shown in Figure 1, being
The structural schematic diagram of the indoor RRU level diagnosis system based on passive RFID tags of an embodiment of the present invention.The system packet
It includes baseband processing unit 100, multiple Remote Radio Unit 200 being connected with the baseband processing unit 100, be fixed on described penetrate
Detection probe 300 and mobile terminal 400 on frequency extension unit 200.
The baseband processing unit (BBU) 100 can be directly connected with Remote Radio Unit (RRU) 200 by optical fiber,
Multi-tier can be carried out by interface of the RHUB to baseband processing unit 100, connect Remote Radio Unit 200 with RHUB,
To increase the quantity of Remote Radio Unit 200.In general, only including a base in a mobile communication indoor distribution system
Tape handling unit 100, Remote Radio Unit 200 then have it is multiple and it is discrete be distributed in the interior space, Remote Radio Unit 200
The pRRU that can be Huawei Company's LampSite system is also possible to other RRU.
Detection probe 300 can be label adhesive paper, pastes and is fixed on Remote Radio Unit 200, specifically includes
The filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit 200.RFID label tag can be passive RFID
Detect label.Filter is used to filter out the radio frequency of Remote Radio Unit 200 in RFID label tag and 400 communication process of mobile terminal
Signal, with ensure communicated between RFID label tag and mobile terminal 400 it is smooth.Due to Remote Radio Unit 200 radiofrequency signal with
The poll carrier signal of mobile terminal 400 has differences in frequency, and filter can be filtered by way of limiting communication frequency
Except the radiofrequency signal of Remote Radio Unit 200.The filtering implement body can be filtering chip, filter circuit or other filtering
Device, can be encapsulated in RFID label tag or it is external on the rfid labels.
Mobile terminal 400 includes RFID card reader module, to be communicated based on RFID with detection probe, mobile terminal
400 specifically can be mobile phone, handheld terminal or other mobile devices.
The embodiment of the present invention provides a kind of indoor RRU positioning diagnosticing method based on passive RFID tags, and this method is from shifting
The angle of dynamic terminal is illustrated, as shown in Fig. 2, it includes the following steps:
S100: mobile terminal emits RFID poll CF signal to the detection probe being fixed on Remote Radio Unit.
Mobile terminal launches outward RFID poll CF signal by RFID card reader module, waits and stays in detection range
Detection probe response.The detection that each poll is excited can be limited by controlling the signal strength of RFID poll CF signal to visit
The quantity of needle is waken up the detection probe being located near mobile terminal in preset range.RFID card reader module and RFID are marked
Coupled modes between label mainly have inductive coupling and ELECTROMAGNETIC REFLECTION to couple two kinds, are typically secured to room in view of Remote Radio Unit
On interior ceiling, mobile terminal farther out, therefore, is more fitted at a distance from detection probe by the way of ELECTROMAGNETIC REFLECTION coupling
Preferably.
S200: receiving the back wave of the RFID poll CF signal, and the back wave carries the feedback of detection probe
Information.
After detection probe in detection range receives RFID poll CF signal, its detection is formed into energy, is swashed
The internal circuit work of RFID label tag is sent out, while the feedback information that will test probe interior storage is modulated to RFID poll carrier frequency letter
Number backward-wave in.Mobile terminal receives the back wave of RFID poll CF signal, carries detection probe in the back wave
The feedback information of feedback.
S300: the position for being fixed with the Remote Radio Unit of the detection probe is determined according to the back wave.
Mobile terminal will determine the Remote Radio Unit being fixed together with the detection probe being polled to according to the back wave
Position, to detect the working condition of Remote Radio Unit based on identified position.
In one embodiment, step S300 is specifically included: the signal strength (RSSI) of the back wave is calculated, it is available
Entrained transmission power information and/or receive power in feedback signal to calculate signal strength, utilizes signal strength and distance
The characteristics of in inverse ratio, algorithm well known in the prior art can be used calculate the detection probe to mobile terminal distance, then
The position of respective radio-frequency extension unit is determined based on the distance calculated.
For the ease of being managed to Remote Radio Unit, feedback information transmitted by detection probe includes to be secured to phase
The identification information of Remote Radio Unit even, identification information are used to identify the uniqueness of Remote Radio Unit, and identification information can be with
It is the ID number of Remote Radio Unit, the ID number and Remote Radio Unit have unique corresponding relation.
Since above-mentioned identification information is modulated in back wave, after receiving back wave, demodulated from the back wave
The identification information out, then determine according to the back wave position of Remote Radio Unit corresponding to the identification information, and
Position determined by recording.A tables of data, record identification information and corresponding location information can be established in mobile terminal.
The distance and location information calculated may be displayed on the display screen of mobile terminal, and personnel convenient to overhaul check.
On the basis of the above embodiments, further include following steps after step S300: mobile terminal can start preset
Remote Radio Unit detection module makes Remote Radio Unit detection module open work.The Remote Radio Unit detection module can
To be independent circuit module in mobile terminal, it is also possible to preset detection program in mobile terminal.Due to remote radio list
The position of member is it has been determined that Remote Radio Unit detection module examines the working condition of the Remote Radio Unit to the position
It surveys.Test object includes signaling mode, signal frequency and signal strength etc..These detection datas may be displayed on mobile terminal
On display screen, personnel convenient to overhaul understand the actual operating state of Remote Radio Unit.
Further, further include following steps: when detecting working condition exception, issuing alarm.For each detection
Object all has scheduled normal parameters, when a certain data detected have exceeded its corresponding parameter area, it is determined that
There is exception in the data, and exception also occurs in the working condition of corresponding Remote Radio Unit.Once assert Remote Radio Unit
Working condition is abnormal, and mobile terminal will be issued and be alarmed, and specific type of alarm can be audible alarm, light warning etc., can be with
The real-time upload server of the data that will test.
Since the distribution of Remote Radio Unit indoors is relatively intensive, in order to avoid multiple detection probes because of distance
It closely clashes, needs to limit communication mode.For this purpose, mobile terminal in the given time only with single detection probe
It is communicated, it is possible to prevente effectively from multiple detection probes clash when transmitting data.
In practical maintenance process, service personnel needs inspection of walking about, when mobile terminal is with respect to the position of detection probe
Often in variation, after being detected for the Remote Radio Unit in some region.Service personnel will carry mobile terminal entrance
It is detected to next region.Mobile terminal calculates detection probe to the distance of mobile terminal, for having completed to examine in real time
The Remote Radio Unit of survey, when mobile terminal is secured to the distance between detection probe together greater than preset distance,
The automatic connection disconnected with the detection probe, the new detection probe of automatic searching are carried out next poll detection by mobile terminal,
This mode can effectively promote detection efficiency.
In the above embodiments, in order to avoid the communication between detection probe and mobile terminal is to the performance of RRU antenna
It impacts, in the dipole antenna design to detection probe, not only needs strictly to limit the standing wave performance of high band, but also
It needs to consider the stationary wave characteristic of low-frequency range, to ensure that RFID communication is normal, while not interfering Remote Radio Unit again, for this purpose,
The antenna of RFID label tag has preset standing wave frequency, which can be the frequency for being empirically worth setting
Rate range.
In order to guarantee the cruising ability of mobile terminal, inside can integrate high-capacity lithium battery, while in house software uses
Intelligent power saving mode.Specifically, when mobile terminal does not receive the feedback information of detection probe, mobile terminal in the given time
Battery saving mode will be entered, in a power-save mode, mobile terminal can enter standby mode.Into after battery saving mode, mobile terminal can
To automatically wake up or wake up at regular intervals under manual operation, the cruising ability of mobile terminal can be so ensured.
The embodiment of the present invention also provides a kind of indoor RRU level diagnosis device based on passive RFID tags, such as Fig. 3 institute
Show, comprising: transmitting module 401, for emitting RFID poll CF signal to the detection probe being fixed on Remote Radio Unit,
The detection probe includes the filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit；Receiving module 402,
For receiving the back wave of the RFID poll CF signal, the back wave carries the feedback information of detection probe；It determines
Module 403, for determining the position for being fixed with the Remote Radio Unit of the detection probe according to the back wave.
In one embodiment, the determining module 403 is used to calculate the signal strength of the back wave, according to the letter
Detection probe described in number Strength co-mputation is fixed with penetrating for the detection probe based on the distance determination to the distance of mobile terminal
The position of frequency extension unit.
In one embodiment, the feedback information includes the mark for being fixed with the Remote Radio Unit of the detection probe
Information, the determining module 403 determine institute according to the back wave for demodulating the identification information from the back wave
State the position of Remote Radio Unit corresponding to identification information.
It in one embodiment, further include starting module, the starting module is used for true in the position of Remote Radio Unit
After fixed, start preset Remote Radio Unit detection module, by the Remote Radio Unit detection module to having determined that position
The working condition of Remote Radio Unit detected.
It further, further include alarm module, for issuing alarm when detecting working condition exception.
In one embodiment, the antenna of the RFID label tag has preset standing wave frequency.
The embodiment of the present invention also provides a kind of indoor RRU level diagnosis system based on passive RFID tags, such as Fig. 1 institute
Show, the system include baseband processing unit 100, multiple Remote Radio Unit 200 being connected with the baseband processing unit 100,
The detection probe 300 and mobile terminal 400 being fixed on the Remote Radio Unit 200.The detection probe 300 includes
The filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit 200, the mobile terminal 400 are read including RFID
Card device module.
The mobile terminal 400 is configured to: being emitted to the detection probe 300 being fixed on Remote Radio Unit 200
RFID poll CF signal, receives the back wave of the RFID poll CF signal, and the back wave carries detection probe 300
Feedback information, according to the back wave determine be fixed with the detection probe 300 Remote Radio Unit 200 position.
In one embodiment, mobile terminal 400 is configured to: the signal strength of the back wave is calculated, according to described in
Signal strength calculates the detection probe to the distance of mobile terminal, is fixed with the detection probe based on the distance determination
The position of Remote Radio Unit.
In one embodiment, the feedback information includes the mark for being fixed with the Remote Radio Unit of the detection probe
Information, mobile terminal 400 are configured to: being demodulated the identification information from the back wave, determined according to the back wave
The position of Remote Radio Unit corresponding to the identification information.
In one embodiment, mobile terminal 400 is configured to: being started preset Remote Radio Unit detection module, is led to
The Remote Radio Unit detection module is crossed to detect the working condition for the Remote Radio Unit for having determined that position.
In one embodiment, mobile terminal 400 is configured to: when detecting working condition exception, issuing alarm.
In one embodiment, mobile terminal is only communicated with single detection probe in the given time, when detection is visited
When the distance of needle to mobile terminal is greater than preset distance, the lower detection probe of mobile terminal poll.
In one embodiment, the antenna of the RFID label tag has preset standing wave frequency.
In one embodiment, when the feedback information for not receiving detection probe in the given time, mobile terminal enters
Battery saving mode.
Above-mentioned indoor RRU level diagnosis device in relation to based on passive RFID tags and based on the interior of passive RFID tags
RRU level diagnosis system illustrates, can be with reference to the indoor RRU positioning diagnosticing method part based on passive RFID tags
Embodiment, this will not be repeated here.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of indoor RRU positioning diagnosticing method based on passive RFID tags, which comprises the steps of:
Mobile terminal emits RFID poll CF signal, the detection probe to the detection probe being fixed on Remote Radio Unit
The filter of radiofrequency signal including RFID label tag and for filtering out Remote Radio Unit；
The back wave of the RFID poll CF signal is received, the back wave carries the feedback information of detection probe；
The position for being fixed with the Remote Radio Unit of the detection probe is determined according to the back wave.
2. the method according to claim 1, wherein described be fixed with the detection according to back wave determination
The position of the Remote Radio Unit of probe, specifically includes:
The signal strength for calculating the back wave, according to the signal strength calculate the detection probe to mobile terminal away from
From based on the position of the determining Remote Radio Unit for being fixed with the detection probe of the distance.
3. the method according to claim 1, wherein the feedback information includes to be fixed with the detection probe
The identification information of Remote Radio Unit, it is described that the Remote Radio Unit for being fixed with the detection probe is determined according to the back wave
Position, specifically include:
The identification information is demodulated from the back wave, is determined according to the back wave and is penetrated corresponding to the identification information
The position of frequency extension unit.
4. method according to claim 1-3, which is characterized in that further include following steps:
Start preset Remote Radio Unit detection module, by the Remote Radio Unit detection module to having determined that position
The working condition of Remote Radio Unit is detected.
5. according to the method described in claim 4, it is characterized in that, further including following steps:
When detecting working condition exception, alarm is issued.
6. method according to claim 1-3, it is characterised in that:
Mobile terminal is only communicated with single detection probe in the given time, when the distance of detection probe to mobile terminal is big
When preset distance, the lower detection probe of mobile terminal poll.
7. method according to claim 1-3, it is characterised in that:
The antenna of the RFID label tag has preset standing wave frequency.
8. method according to claim 1-3, it is characterised in that:
When the feedback information for not receiving detection probe in the given time, mobile terminal enters battery saving mode.
9. a kind of indoor RRU level diagnosis device based on passive RFID tags characterized by comprising
Transmitting module, for emitting RFID poll CF signal, the inspection to the detection probe being fixed on Remote Radio Unit
Probing needle includes the filter of RFID label tag and the radiofrequency signal for filtering out Remote Radio Unit；
Receiving module, for receiving the back wave of the RFID poll CF signal, the back wave carries detection probe
Feedback information；
Determining module, for determining the position for being fixed with the Remote Radio Unit of the detection probe according to the back wave.
10. a kind of indoor RRU level diagnosis system based on passive RFID tags, it is characterised in that:
Including baseband processing unit, multiple Remote Radio Unit being connected with the baseband processing unit, it is fixed on the radio frequency
Detection probe and mobile terminal on extension unit, the detection probe include RFID label tag and for filtering out remote radio list
The filter of the radiofrequency signal of member, the mobile terminal includes RFID card reader module；The mobile terminal configuration is used for:
Emit RFID poll CF signal to the detection probe being fixed on Remote Radio Unit, receives the RFID poll carrier frequency
The back wave of signal, the back wave carry the feedback information of detection probe, are determined described in being fixed with according to the back wave
The position of the Remote Radio Unit of detection probe.
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Application publication date: 20190528 |
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