CN108548520A - A kind of antenna attitude remote data acquisition system based on NB-IOT - Google Patents
A kind of antenna attitude remote data acquisition system based on NB-IOT Download PDFInfo
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- CN108548520A CN108548520A CN201810158277.5A CN201810158277A CN108548520A CN 108548520 A CN108548520 A CN 108548520A CN 201810158277 A CN201810158277 A CN 201810158277A CN 108548520 A CN108548520 A CN 108548520A
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- antenna
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- antenna attitude
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
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- Radar, Positioning & Navigation (AREA)
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Abstract
The present invention provides a kind of antenna attitude remote data acquisition system based on NB IOT, including hardware device and management platform two parts, multiple high-precision sensors realize aerial position measurement, azimuth determination, pitch angle measurement, hang high measurement wherein built in hardware device, that is, antenna attitude tracker.And high-precision GPS chip, electronic compass, gyroscope, baroceptor and data transmission module built in antenna attitude tracker.System management platform can be divided into two, client and server end part, and mainly there are three modules for server end：Data acquisition module, database processing module, NB IOT module management modules.Several modules such as client includes mainly function displayed page, early warning work order distributes, statistical analysis and collection rule are formulated.It is mounted on antenna for base station using antenna attitude tracker, for monitoring antenna attitude in real time, improves antenna physical parameters accurate testing degree, interference from human factor when antenna physical parameters being avoided to measure improves the precision and efficiency of the network optimization.
Description
Technical field
The invention belongs in the communication technology the network optimization and antenna attitude monitoring management field, and in particular to one kind is based on
The antenna attitude remote data acquisition system of NB-IOT.
Background technology
The main work ginseng of antenna for base station has pitch angle, azimuth, roll angle and position longitude and latitude etc., these parameters are to base station
Electromagnetism be covered with conclusive influence.So the correctness of antenna parameter has important meaning in the network planning and the network optimization
Justice.There are more drawback, the azimuth of antenna of mobile communication base station and the biographies of angle of declination for traditional antenna attitude measurement method
The measurement request engineers and technicians that unite use compass, artificially orientation angle really, and disturbing factor is more, also requires engineering technology people
The scale mark for the low precision that member is identified by visual inspection on the mounting bracket of antenna identifies gradient, engineering staff's
Error in terms of skill and manual measurement will produce incorrect or unstable measurement result, can not accurately reach design
It is required that.Meanwhile old survey tool is there are larger defect, orientation difficulty is big when circumferentor onsite application, precision it is not high and
Largely influenced by individual factor.Tower power frequency is numerous, and upper and lower tower has certain risk.To improve network optimization precision and effect
Rate, it is necessary to antenna attitude can be monitored in real time and return the technology of antenna work ginseng.
NB-IOT is the emerging technology in one, the fields IOT, and low power consuming devices is supported to be connected in the cellular data of wide area network,
It is regarded as low-power consumption wide area network (LPWAN).NB-IOT supports that stand-by time is long, connecting to the efficient of network connectivity requirements higher device
It connects.
Invention content
The posture of antenna needs to measure the appearance of antenna with mechanical tool by staff to tower top in the prior art
State just can determine that the coverage area of base station signal, the workload of personnel are very big and time-consuming.The present invention is directed to pass through a kind of outside
Device be mounted on antenna for base station on, come in real time, the period or on demand monitoring measure antenna physical parameters.By installing hardware module
Antenna attitude tracker measures the antenna physical parameters such as acquisition aerial position, azimuth, pitch angle, height above sea level, roll angle, leads to
It crosses NB-IOT modules and carries out data back to cloud platform, the real-time or measurement on demand to antenna physical parameters is realized, when antenna appearance
State information can send out early warning in time when being abnormal change, and accurate antenna physical work ginseng is provided for the fining network optimization,
Ensure to improve related Optimization Work efficiency while measurement result accuracy.To reduce the workload and electricity of base station operation personnel
The operation cost of letter company.
To solve the above problems, the present invention is achieved by the following technical solutions；
A kind of antenna attitude remote data acquisition system based on NB-IOT, including the tracking of sequentially connected antenna attitude
Instrument, data processing unit and displaying applying unit；The antenna attitude tracker includes GPS chip, electronic compass, gyro
Instrument, baroceptor and data transmission module；The data processing unit include data acquisition module, database processing module,
NB-IOT module management modules；The displaying applying unit include displayed page, early warning work order distribute, statistical analysis and acquisition
Rulemaking module.
Data transmission module of the data transmission based on NB-IOT in data transmission module.
Antenna attitude tracker is by attitude transducer MPU9250 to antenna attitude into line trace.
Antenna attitude tracker is used for measuring acquisition aerial position, azimuth, pitch angle, antenna hang high, roll angle day
Line physical parameter.
Aerial position is measured realizes positioning by GPS, GOLNASS or Beidou positioning module, i.e., by time difference ranging come
Positioning, receiver include the exact position of satellite and the precise time letter of satellite emission signal in the satellite-signal received
Breath.
Azimuth is measured by electronic compass and is realized, and the electronic compass is using based on " Hall effect " principle
The compass in magnetic field.
Antenna pitching angular measurement is realized by gyroscope, is sensed based on 3-axis acceleration, using pressure resistance type, piezoelectric type and electricity
Appearance formula operation principle, the acceleration of generation are proportional to the variation of resistance, voltage and capacitance, by amplifying accordingly and filter circuit
It is acquired.
Antenna hangs high measurement by the way of air pressure sensing combination GPS, first obtains the atmospheric pressure value and GPS letters of reference position
Breath then is calculated to obtain according to air pressure change and hangs height, while being calibrated using GPS.
Antenna bearingt angular measurement is exported by slope compensation algorithm in conjunction with 3 axis magnetic induction intensity of electronic compass and gyroscope
Pitch angle, roll angle be corrected compensation.
Installation antenna attitude tracker need to be bonded in aerial head, it is ensured that installation position is consistent with antenna direction；Antenna
90 ° of top planted agent is blocked without building.
Attitude Tracking instrument mechanical performance design parameter is as shown in the table：
Antenna bearingt angular measurement is exported by slope compensation algorithm in conjunction with 3 axis magnetic induction intensity of electronic compass and gyroscope
Pitch angle, roll angle be corrected compensation.
The advantageous effect of above-mentioned technical proposal：1. the antenna for solving to occur angular deviation quickly positions, facilitate repair people
Member's adjustment；2. accurately measuring all angles, earth magnetism is calibrated before product export, eliminates external magnetic field interference；Optimize simultaneously soft or hard
Part, hardware and software algorithm strong antijamming capability；The ultralow power consumption of 3.NB data transmissions a, as long as batteries are not required to external electricity
Source simplifies appearance.4. saving company operation and maintenance cost, personnel's efficiency is improved.
Compared with the prior art, the present invention has the following advantages：
The present invention can replace traditional antenna work to join survey tool, realize efficiently, accurately data edge, compared to biography
The antenna work of system joins measurement method, and this product above has apparent advantage in application.
1. measurement result deviation can be occurred by complex environment and human factor in traditional measurement method, antenna attitude is surveyed
Reason instrument is not influenced to ensure that the accuracy of measurement result by these factors；
2. joining measurement method compared to traditional antenna work, this product can significantly improve the effect that antenna work ginseng measures
Rate, the promptness of Logistics networks optimization.
3. security performance higher can reduce the number of working at height, the safety of antenna measurement is improved.
4. being based on NB-IOT networks, cooperation cloud platform uses, and promotes data management efficiency.
In conclusion this product may be directly applied to existing network, and join measurement side in traditional antenna work
Outside formula, look for another way, can directly, accurately improve antenna work ginseng measuring accuracy and network optimization efficiency.
This system is divided into two parts of hardware and management platform：
1, hardware components
Hardware components, that is, antenna attitude tracker realizes that aerial position measures by GPS module, and passes through attitude transducer
MPU9250, into line trace, realizes azimuth determination, pitch angle measurement, hangs high measurement to antenna attitude.MPU9250 is to incorporate
The digital sensor of 9 axis athletic postures detection, eliminates the between centers difference problem of multi sensor combination, and reduce the body of sensor
Product, reduces system power dissipation.MPU9250 is integrated with MPU6050 (3 axis gyroscopes, 3 axis accelerometers) and AK8963 (3 axis magnetic force
Count electronic compass), output signal is all 16 digital quantities；Data friendship can be carried out by IC bus (IIC) interface
Mutually.The angular velocity measurement range of gyroscope is up to ± 2000 (°)/s, has good dynamic response characteristic.Accelerometer
Measurement range is up to ± 16g (g is acceleration of gravity), and static measurement precision is high.Electronic compass is using highly sensitive Hall type
Sensor carries out data acquisition, and magnetic flux density measurement ranging from ± 4800Mt can be used for the subsidiary of azimuthal.
Aerial position is measured to be realized by GPS, GOLNASS or Beidou positioning module.Positioned by time difference ranging,
Include exact position and the precise time information of satellite emission signal of satellite in the satellite-signal received.Receiver is most
The signal that receive four satellites less is equivalent to from the point of four known exact positions and receives signal；And reception can be passed through
Machine clock obtains the time difference, to know four signals from satellite to receiver inaccurate distance (contain the same error amount, by
Receiver clock error causes), four equations are built with the accurate location of this four inaccurate distances and four satellites, are solved equation
Group just obtains receiver location.
Antenna bearingt angular measurement is exported by slope compensation algorithm in conjunction with 3 axis magnetic induction intensity of electronic compass and gyroscope
Pitch angle, roll angle be corrected compensation.Although GPS in navigation, position, test the speed, have a wide range of applications in terms of orientation,
Since its signal is often blocked by landform, atural object, precision is caused to substantially reduce, or even cannot used.Especially stand in great numbers city in high building
Validity with the forest zone of dense vegetation, GPS signal is only 60%.And in the stationary case, GPS can not also provide course
Information.Electronic compass can carry out effective compensation to GPS signal, ensure that directed information 100% is effective, even in GPS signal
It can also work normally, accomplish " lose star do not lose to " after losing lock.
Antenna pitching angular measurement realized by gyroscope, and gyroscope is called angular-rate sensor, measure physical quantity be deflection,
Rotational angular velocity when inclination.Accurate antenna elevation angle can be obtained by attitude algorithm, referring to attached drawing 4.
Antenna hangs high measurement by the way of air pressure sensing+GPS, first obtains the atmospheric pressure value and GPS information of reference position, and
It is calculated to obtain according to air pressure change afterwards and hangs height, while being calibrated using GPS.
Data transmission module of the data transmission based on NB-IOT.NB-IOT can be widely applied to a variety of vertical industries, such as
Remote meter reading, asset tracking, intelligent parking, wisdom agricultural etc..NB-IOT has four characteristics：
First, extensively covering, under same frequency range, NB-IOT is equivalent to than existing network gain 20dB and improves 100
The ability of times overlay area；
Second is that having the ability of support magnanimity connection, mono- sector NB-IOT can support 100,000 connections, support low prolong
When susceptibility, ultralow equipment cost, low equipment power dissipation and optimization the network architecture；
Third, more low-power consumption, the stand-by time of NB-IOT terminal modules is 10 years；
Fourth, lower module cost.
2, management platform
System management platform can be divided into two, client and server end part, and mainly there are three modules for server end：Number
According to acquisition module, database processing module, NB-IOT module management modules.Client includes mainly function displayed page, early warning
Several modules such as work order distributes, statistical analysis and collection rule are formulated.
Description of the drawings
Fig. 1 is the product schematic diagram of the present invention；
Fig. 2 is the scheme of installation of the present invention；
Fig. 3 is the application schematic diagram of the present invention；
Fig. 4 is the gyroscope test schematic diagram of the present invention；
Fig. 5 is the implementing procedure figure of the present invention；
Fig. 6 is the system software work flow diagram of the present invention；
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in detail.It should be noted that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The first step is installed above fixed pose instrument to antenna, ensures that the external environment of system is stablized；
Second step, booting, nine axle acceleration modules start to work, record installation power on the moment initial coordinate (Lon0,
) and roll angle Ax0, pitch angle Ay0, bearing data Az0 Lat0；Air pressure P0, temperature T0, height H0；
Third walks, and opens NB-IOT modules, will be initial in a manner of UDP or Coap by NB platforms by initial data
Data and current data are uploaded onto the server end；
4th step, the data for comparing primary data and currently acquiring, if there is deviation, such as longitude and latitude deviation, angular deviation,
Temperature deviation, low battery etc. then provide alarm standard information, host computer platform are facilitated to handle in messages.If do not accused
Alert relevant information, MCU management system enter low-power consumption mode.Waiting wakes up next time.
5th step, timing wake up, and quickly detect above-mentioned environmental data, and filter out by the method for sliding-window filtering
Interference.Reducing detection time reduces system power dissipation Pw.
Base station, which is carried, measures experiment and interpretation of result：
Coordinate data obtains longitude and latitude by GPS module, and data deviation surveys 5m；But with dense fog and rainy weather
Error slightly expands but also within 10M.By accelerometer measures, laboratory measurement deviation is less than for pitch angle and roll angle
1 degree, but in outdoor due to installation, environment influence brings fractional error, 5 degree of statistic bias；It is most difficult to measure in all parameters
Be exactly azimuth because earth magnetism and environmental change can bring very big influence to magnetoresistive sensor, by glide filter, we obtain
Precision within 10 degree.It can be with extremely low power consumption (transmission time 10mS, operating current using NB platform stance instrument system
30mA operating voltage 3.3v, transmission power consumption is less than 1mW) transfer data to platform.
Implementing procedure figure such as attached drawing 5；System software work flow diagram such as attached drawing 6.
Test result is as follows shown in table：
| Azimuth actual value | Azimuth determination value | Pitch angle actual value | Pitch angle measurement value | Roll angle actual value | Roll angle measurement |
| 50 | 52 | 30 | 31 | 30 | 32 |
| 100 | 104 | 50 | 49 | 50 | 50 |
| 150 | 154 | 70 | 69 | 70 | 72 |
| 200 | 196 | 90 | 88 | 90 | 93 |
| 250 | 246 | 110 | 112 | 110 | 108 |
| 300 | 303 | 130 | 128 | 130 | 131 |
Test result meets error requirements above-mentioned.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to restrict the invention, all originals in the present invention
Then within spirit made by all any modification, equivalent and improvement etc., be included within protection scope of the present invention.
Claims (10)
1. a kind of antenna attitude remote data acquisition system based on NB-IOT, it is characterised in that：Including sequentially connected antenna
Attitude Tracking instrument, data processing unit and displaying applying unit；The antenna attitude tracker includes GPS chip, electronics sieve
Disk, gyroscope, baroceptor and data transmission module；The data processing unit includes data acquisition module, at database
Manage module, NB-IOT module management modules；The displaying applying unit include displayed page, early warning work order distribute, statistical analysis
And collection rule formulates module.
2. the antenna attitude remote data acquisition system according to claim 1 based on NB-IOT, it is characterised in that described
Data transmission module of the data transmission based on NB-IOT in data transmission module.
3. the antenna attitude remote data acquisition system according to claim 1 based on NB-IOT, it is characterised in that described
Antenna attitude tracker is by attitude transducer MPU9250 to antenna attitude into line trace.
4. the antenna attitude remote data acquisition system based on NB-IOT according to claim 2 or claim 3, special
Sign be the antenna attitude tracker be used for measuring acquisition aerial position, azimuth, pitch angle, antenna hang it is high, roll angle
Antenna physical parameters.
5. the antenna attitude remote data acquisition system according to claim 4 based on NB-IOT, it is characterised in that described
Aerial position is measured realizes positioning by GPS, GOLNASS or Beidou positioning module, i.e., is positioned, received by time difference ranging
Machine includes the exact position of satellite and the precise time information of satellite emission signal in the satellite-signal received.
6. the antenna attitude remote data acquisition system according to claim 4 based on NB-IOT, it is characterised in that antenna
The azimuth is measured by electronic compass and is realized, and the electronic compass is using the magnetic field based on " Hall effect " principle
Compass.
7. the antenna attitude remote data acquisition system according to claim 4 based on NB-IOT, it is characterised in that antenna
The pitch angle measurement is realized by gyroscope, is sensed based on 3-axis acceleration, is worked using pressure resistance type, piezoelectric type and condenser type
Principle is acquired by amplifying accordingly with filter circuit.
8. the antenna attitude remote data acquisition system according to claim 4 based on NB-IOT, it is characterised in that antenna
High measurement is hung by the way of air pressure sensing combination GPS, the atmospheric pressure value and GPS information of reference position are first obtained, then according to gas
Bucklingization, which calculates to obtain, hangs height, while being calibrated using GPS.
9. the antenna attitude remote data acquisition system according to claim 6 based on NB-IOT, it is characterised in that antenna
Azimuth determination passes through slope compensation algorithm, the pitch angle exported in conjunction with 3 axis magnetic induction intensity of electronic compass and gyroscope, rolling
Angle is corrected compensation.
10. according to the antenna attitude remote data acquisition system based on NB-IOT described in claim 5 to 9, it is characterised in that
Installation antenna attitude tracker need to be bonded in aerial head, it is ensured that installation position is consistent with antenna direction；Above antenna in 90 °
It should be blocked without building.
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| CN201810158277.5A CN108548520A (en) | 2018-02-25 | 2018-02-25 | A kind of antenna attitude remote data acquisition system based on NB-IOT |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110132224A (en) * | 2019-05-08 | 2019-08-16 | 苏州感测通信息科技有限公司 | A kind of antenna attitude intelligent measuring systems based on technology of Internet of things |
| CN110260849A (en) * | 2019-06-28 | 2019-09-20 | 宜通世纪物联网研究院(广州)有限公司 | Antenna attitude determination system based on image recognition and implementation method thereof |
| CN111654550A (en) * | 2020-06-16 | 2020-09-11 | 赵继海 | NB-IOT (NB-IOT) -based Internet of things deviation alarm system |
| CN112284328A (en) * | 2020-10-12 | 2021-01-29 | 通号工程局集团有限公司 | Comprehensive test system for azimuth angle and pitch angle of mobile communication base station antenna and use method thereof |
| CN113008221A (en) * | 2019-12-18 | 2021-06-22 | 中移物联网有限公司 | Antenna attitude test device, method and system |
| CN113805201A (en) * | 2021-09-17 | 2021-12-17 | 中科海微(北京)科技有限公司 | Antenna attitude detection device and method |
| CN117030118A (en) * | 2023-07-11 | 2023-11-10 | 大连海事大学 | Digital portable acquisition device for ship variable position load positioning information |
| CN117537792A (en) * | 2024-01-03 | 2024-02-09 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Electronic compass self-adaptive azimuth correction method |
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| CN117030118A (en) * | 2023-07-11 | 2023-11-10 | 大连海事大学 | Digital portable acquisition device for ship variable position load positioning information |
| CN117537792A (en) * | 2024-01-03 | 2024-02-09 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Electronic compass self-adaptive azimuth correction method |
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Application publication date: 20180918 |