CN104571144A - Remote control unit (RCU) - Google Patents
Remote control unit (RCU) Download PDFInfo
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- CN104571144A CN104571144A CN201410742145.9A CN201410742145A CN104571144A CN 104571144 A CN104571144 A CN 104571144A CN 201410742145 A CN201410742145 A CN 201410742145A CN 104571144 A CN104571144 A CN 104571144A
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- rcu
- base station
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Abstract
The invention provides a remote control unit (RCU). The RCU comprises a shell, and a processor and an electronic compass component arranged in the shell, wherein the electronic compass component and the processor are fixedly mounted on a PCB board on the shell; the electronic compass component comprises a three-axis acceleration sensor and a three-axis magnetic field sensor which are respectively and electrically connected with the processor; the processor is used for receiving monitoring commands sent by remote network management equipment; the processor is further used for controlling the measurement of mechanical downward inclination angles and azimuthal angles of a base station antennae by the three-axis acceleration sensor and the three-axis magnetic field sensor according to the monitoring commands, so that by additionally arranging the electronic compass component on the existing RCU, the measurement to the mechanical downward inclination angles and azimuthal angles of the base station antennae by the RCU can be realized, the RCU is simple and convenient, relatively comprehensive important parameters of the base station antennae can be obtained, and a premise is provided for performing corresponding parameter adjustment on the measured parameters.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of remote control unit RCU.
Background technology
In mobile communication system, along with the development of antenna technology, current electrical tilt antenna is widely used.So-called electrical tilt antenna refers to the portable antenna using electronics adjustment tilt angled down, by being positioned at the maintenance system of base station, the mode of remote network management is adopted to adjust the electrical tilt angle of antenna, namely by Long-distance Control remote control unit (Remote Control Unit, hereinafter referred to as RCU) realize reading and the adjustment of antenna electronics angle of declination, with optimized network.
Along with the continuous expansion of network size, the antenna for base station quantity needed also is being on the increase, in actual mobile network covers, determine portable antenna coverage effect except electrical tilt angle, also closely related with other antenna foundation data, wherein most important 2 parameters are mechanical tilt angles of antenna azimuth (i.e. the main lobe coverage direction of antenna) and antenna.
Traditional RCU can realize reading and the adjustment at remote antenna electrical tilt angle, but cannot realize aerial mechanical angle of declination and azimuthal monitoring and reading.At present, aerial mechanical angle of declination and azimuthal monitoring are generally realized by equipment such as extra such as antenna attitude instrument.But so just need realize the integration of at least two kinds of watch-dog image data at far-end, and need to safeguard at least two kinds of watch-dogs, cost is higher, and not convenient.
Summary of the invention
The invention provides a kind of remote control unit RCU, in order to overcome prior art need adopt multiple watch-dog could obtain antenna for base station comparatively comprehensively the antenna for base station parameter monitoring cost that causes of supplemental characteristic high, realize not defect easily.
The invention provides a kind of remote control unit RCU, comprising:
Housing, and the processor be arranged in described housing and electronic compass assembly;
Described electronic compass assembly and described processor fixedly mount on pcb board on the housing;
Described electronic compass assembly comprises 3-axis acceleration sensor and triaxial magnetic field sensor, and described 3-axis acceleration sensor and described triaxial magnetic field sensor are electrically connected with described processor respectively;
The Monitoring instruction that described processor sends for receiving remote network management equipment, described Monitoring instruction is used to indicate the mechanical tilt angle and position angle of measuring antenna for base station;
Described processor also measures mechanical tilt angle and the position angle of described antenna for base station for controlling described 3-axis acceleration sensor and described triaxial magnetic field sensor according to described Monitoring instruction.
Further, three axles of three axles of described 3-axis acceleration sensor and described triaxial magnetic field sensor respectively correspondence be arranged in parallel.
Further, the inclination angle axle in described three axles and the axis being parallel of described RCU, the axis of described RCU and the axis being parallel of described antenna for base station;
Azimuth axis in described three axles and the front vertical of described RCU, the front of described RCU is parallel with the radiating surface of described antenna for base station and in the same way.
Further, described RCU also comprises:
Nonvolatile memory, described storer is connected with described processor, for storing mechanical tilt angle and the position angle of the described antenna for base station recorded.
Further, described RCU also comprises: AISG protocol stack, mutual for what realize with described remote network management equipment room.
Further, described RCU is connected with the radio frequency remote unit RRU of described base station, is powered to described RCU by described RRU.
Further, described housing adopts non-magnetic material.
Particularly, described non-magnetic material comprises any one in following material:
Aluminium alloy, copper.
Further, described RCU also comprises:
Be arranged at the CD-ROM drive motor on described housing;
Described CD-ROM drive motor is connected with described processor.
Particularly, described CD-ROM drive motor is magnetic shielding motor.
Remote control unit RCU of the present invention, comprise and be arranged on electronic compass assembly in housing and processor, this electronic compass assembly comprises 3-axis acceleration sensor and triaxial magnetic field sensor, when processor receives the mechanical tilt angle of instruction measurement antenna for base station and azimuthal Monitoring instruction, control mechanical tilt angle and the position angle of 3-axis acceleration sensor and triaxial magnetic field sensor measurement antenna for base station according to this Monitoring instruction.Thus can realize on the basis to antenna for base station electrical tilt angular measurement at existing RCU, just RCU can be realized to antenna for base station mechanical tilt angle and azimuthal measurement by setting up above-mentioned electronic compass assembly, simple and convenient, thus antenna for base station comparatively comprehensively important parameter can be obtained, for the adjustment carrying out relevant parameter according to the parameter recorded provides prerequisite.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of remote control unit RCU embodiment one of the present invention;
Fig. 2 is that remote control unit RCU of the present invention measures antenna for base station mechanical tilt angle and azimuthal schematic diagram;
Fig. 3 is the Facad structure schematic diagram of remote control unit RCU embodiment two of the present invention;
Fig. 4 is the side structure schematic diagram of remote control unit RCU embodiment three of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but the present invention is not limited to the following examples.
Fig. 1 is the Facad structure schematic diagram of remote control unit RCU embodiment one of the present invention, and as shown in Figure 1, this RCU comprises:
Housing 1, and the processor 2 be arranged in described housing 1 and electronic compass assembly 3;
Described electronic compass assembly 3 and described processor 2 are fixedly mounted on the pcb board 4 on described housing 1;
Described electronic compass assembly 3 comprises 3-axis acceleration sensor 31 and triaxial magnetic field sensor 32, and described 3-axis acceleration sensor 31 and described triaxial magnetic field sensor 32 are electrically connected with described processor 2 respectively;
Described processor 2 is for receiving Monitoring instruction, and described Monitoring instruction is used to indicate the mechanical tilt angle and position angle of measuring antenna for base station;
Described processor 2 also measures mechanical tilt angle and the position angle of described antenna for base station for controlling described 3-axis acceleration sensor 31 and described triaxial magnetic field sensor 32 according to described Monitoring instruction.
In the present embodiment, realizing on the basis to antenna for base station electrical tilt angular measurement and adjustment at existing RCU, mechanical tilt angle to antenna for base station and azimuthal monitoring can also be realized by setting up above-mentioned electronic compass assembly 3.
Wherein, electronic compass assembly 3 comprises 3-axis acceleration sensor 31 and triaxial magnetic field sensor 32.Error is produced in order to avoid these two sensors send to during remote network management at data fusion and mechanical tilt angle and position angle packing, in the present embodiment, by three axles (X-axis, Y-axis, Z axis) of three of 3-axis acceleration sensor 31 axles (X-axis, Y-axis, Z axis) and triaxial magnetic field sensor 32 respectively correspondence be arranged in parallel.
Particularly, inclination angle axle in described three axles (is generally X-axis, the i.e. X-axis of 3-axis acceleration sensor 31 and the X-axis of triaxial magnetic field sensor 32) be set to the axis being parallel with RCU, and the axis being parallel of the axis of RCU and its antenna for base station be installed on, as long as measure the inclination angle of inclination angle axle like this, namely obtain the mechanical tilt angle of antenna for base station.
Particularly, azimuth axis in described three axles (is generally Z axis, the i.e. Z axis of 3-axis acceleration sensor 31 and the Z axis of triaxial magnetic field sensor 32) be set to the front vertical with described RCU, and the front of RCU and the radiating surface of antenna for base station parallel and in the same way.Thus, as long as measure the position angle of azimuth axis sensing, namely obtain the position angle of antenna for base station.
In embody rule, remote network management can assign Monitoring instruction by remote network management equipment to RCU, processor 2 in RCU measures the mechanical tilt angle of antenna for base station and azimuthal Monitoring instruction for receiving this instruction, and measures mechanical tilt angle and the position angle of antenna for base station according to this Monitoring instruction control 3-axis acceleration sensor 31 and triaxial magnetic field sensor 32.
As shown in Figure 2, Fig. 2 is that remote control unit RCU of the present invention measures antenna for base station mechanical tilt angle and azimuthal schematic diagram for the mechanical tilt angle of antenna for base station and azimuthal concrete monitoring implementation procedure.
The mechanical tilt angle of antenna for base station is monitored in the following way:
By 3-axis acceleration sensor 31, record the component A z of gravity acceleration g in inclination angle axle (X-axis) durection component Ax and azimuth axis (Z axis) direction, according to rectangular coordinate relation, the angle ψ of inclination angle axle and gravity acceleration g, be the mechanical tilt angle of antenna for base station, thus there is following relational expression: Ax=g × cos ψ, Az=g × sin ψ.Thus, Az/Ax=tan ψ, therefore, ψ=tan (Az/Ax).
The position angle of antenna for base station is monitored in the following way:
Azimuthal measurement is mainly calculated by the existence in triaxial magnetic field sensor 32 perception magnetic field of the earth.When under the ecotopia of pure magnetic field of the earth, triaxial magnetic field sensor 32 rotates a circle around stationary shaft, the earth magnetic field intensity set of values that the another diaxon of triaxial magnetic field sensor 32 is measured, the circle in should to be one in rectangular coordinate system with initial point the be center of circle.But due to magnetic field of the earth very faint, around triaxial magnetic field sensor 32, there is the magnetic material of tool maybe can affect the magnetic interference of local magnetic field strength material, make the magnetic field of triaxial magnetic field sensor 32 position that deviation occur, when triaxial magnetic field sensor 32 rotates a circle around fixed axis under this magnetic field environment, the field strength value collection that another diaxon is measured, in rectangular coordinate system, show as the ellipse of a deviation from origin, the position angle of measuring in such a case is incorrect.Therefore, to calibrate it before use triaxial magnetic field sensor 32.Calibration steps, RCU powers on and enters calibration mode, slowly rotates a circle around RCU axis, and rotational time is about 1 minute.In follow-up actual use procedure, draw scale factor and off-set value by triaxial magnetic field sensor 32 calibration, measured data in actual environment is modified to standard round from ellipse, the center of circle of departing from is withdrawn into initial point.
When monitoring the position angle of antenna for base station, by 3-axis acceleration sensor 31, recording the component of gravity acceleration g on three direction of principal axis, according to coordinate relation, trying to achieve angle of pitch φ and the roll angle θ of azimuth axis (Z axis).By the scale factor obtained during triaxial magnetic field sensor 32 initialization of calibration and off-set value, the magnetic field strength component on three direction of principal axis recorded by triaxial magnetic field sensor 32 carries out Data correction and error compensation, and after revising, the magnetic field strength component of three axles is denoted as M
x, M
y, M
z.Because azimuth axis may not exclusively be horizontal, directly use revised magnetic field strength component to do position angle and calculate, can be inaccurate, so pour angle compensation will be carried out to azimuth axis.Particularly, utilize the above-mentioned azimuth axis angle of pitch of trying to achieve and roll angle, substitute into following formula:
M
ZH＝M
Ycosφ+M
Zsinθcosφ-M
Xcosθsinφ
M
YH＝M
Zcosθ++M
Xsinθ
Revised azimuth axis magnetic field strength component is converted horizontal direction, is denoted as M
zH, M
yH.Utilize the azimuth angle alpha of the magnetic field strength component computer azimuth axle of diaxon on the surface level after conversion, consider four quadrants of angle, position angle can be tried to achieve by following formula:
Further, described RCU also comprises: AISG protocol stack, mutual for what realize with described remote network management equipment room.
In the present embodiment, the communication interaction of RCU and remote network management equipment room is based on AISG (AntennaInterface Standard Group) agreement.Specifically, can based on the agreement of AISG2.0 version.
Further, because above-mentioned triaxial magnetic field sensor 32 is very easy to be subject to magnetic interference, therefore, in order to reduce the magnetic interference to it, in the present embodiment, described housing 1 adopts non-magnetic material.
Particularly, described non-magnetic material comprises any one in following material: aluminium alloy, copper.
In the present embodiment, comprise and be arranged on electronic compass assembly in housing and processor, this electronic compass assembly comprises 3-axis acceleration sensor and triaxial magnetic field sensor, when processor receives the mechanical tilt angle of instruction measurement antenna for base station and azimuthal Monitoring instruction, control mechanical tilt angle and the position angle of 3-axis acceleration sensor and triaxial magnetic field sensor measurement antenna for base station according to this Monitoring instruction.Thus can realize on the basis to antenna for base station electrical tilt angular measurement at existing RCU, just RCU can be realized to antenna for base station mechanical tilt angle and azimuthal measurement by setting up above-mentioned electronic compass assembly, simple and convenient, thus antenna for base station comparatively comprehensively important parameter can be obtained, for the adjustment carrying out relevant parameter according to the parameter recorded provides prerequisite.In addition, in order to ensure the accuracy of antenna for base station mechanical tilt angle and azimuthal measurement result, housing also adopts non-magnetic material, to reduce the magnetic interference to triaxial magnetic field sensor, ensures the accuracy of measurement result.
Fig. 3 is the Facad structure schematic diagram of remote control unit RCU embodiment two of the present invention, and as shown in Figure 3, on basis embodiment illustrated in fig. 1, described RCU also comprises:
Nonvolatile memory 5, described storer 5 is connected with described processor 2, for storing mechanical tilt angle and the position angle of the described antenna for base station recorded.
Further, described RCU is connected with the radio frequency remote unit RRU of described base station, is powered to described RCU by described RRU.
In prior art, the independently equipment such as other such as antenna attitude monitors is adopted to monitor the mechanical tilt angle of antenna for base station and position angle, these equipment need to adopt battery, sun power, independently draw the modes such as electricity supplies to realize electric power, less stable and cost is higher.In the present embodiment, realize mechanical tilt angle to antenna for base station and azimuthal monitoring by the electronic compass assembly 3 set up in RCU, thus, by the RRU be connected with RCU, it can be powered, simple and convenient, and stability is better.
When remote network management sends monitoring base station antenna mechanical tilt angle and position angle instruction by RRU to RCU, the CPU of RCU calculates mechanical tilt angle and the position angle of antenna for base station by said method control 3-axis acceleration sensor 31 and triaxial magnetic field sensor 32, be saved in the not volatile storer of power down 4, and return the mechanical tilt angle of antenna for base station and azimuthal supplemental characteristic by the mode meeting AISG agreement, realize remote network management and the unified of antenna for base station supplemental characteristic is read and management and control.
Fig. 4 is the side structure schematic diagram of remote control unit RCU embodiment three of the present invention, and as shown in Figure 4, described RCU also comprises:
Be arranged at the CD-ROM drive motor 6 on described housing, described CD-ROM drive motor 6 is connected with described processor 2.
CD-ROM drive motor 6 is the power regulating antenna for base station electrical tilt angle angle.Disturb the magnetic force of above-mentioned triaxial magnetic field sensor 32 to reduce further, particularly, described CD-ROM drive motor 6 adopts magnetic shielding motor.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a remote control unit RCU, is characterized in that, comprising:
Housing, and the processor be arranged in described housing and electronic compass assembly;
Described electronic compass assembly and described processor fixedly mount on pcb board on the housing;
Described electronic compass assembly comprises 3-axis acceleration sensor and triaxial magnetic field sensor, and described 3-axis acceleration sensor and described triaxial magnetic field sensor are electrically connected with described processor respectively;
The Monitoring instruction that described processor sends for receiving remote network management equipment, described Monitoring instruction is used to indicate the mechanical tilt angle and position angle of measuring antenna for base station;
Described processor also measures mechanical tilt angle and the position angle of described antenna for base station for controlling described 3-axis acceleration sensor and described triaxial magnetic field sensor according to described Monitoring instruction.
2. RCU according to claim 1, is characterized in that, three axles of described 3-axis acceleration sensor and three axles of described triaxial magnetic field sensor respectively correspondence be arranged in parallel.
3. RCU according to claim 2, is characterized in that, the inclination angle axle in described three axles and the axis being parallel of described RCU, the axis of described RCU and the axis being parallel of described antenna for base station;
Azimuth axis in described three axles and the front vertical of described RCU, the front of described RCU is parallel with the radiating surface of described antenna for base station and in the same way.
4. RCU according to any one of claim 1 to 3, is characterized in that, also comprises:
Nonvolatile memory, described storer is connected with described processor, for storing mechanical tilt angle and the position angle of the described antenna for base station recorded.
5. RCU according to any one of claim 1 to 3, is characterized in that, also comprises: AISG protocol stack, mutual for what realize with described remote network management equipment room.
6. RCU according to any one of claim 1 to 3, is characterized in that, described RCU is connected with the radio frequency remote unit RRU of described base station, is powered to described RCU by described RRU.
7. RCU according to any one of claim 1 to 3, is characterized in that, described housing adopts non-magnetic material.
8. RCU according to claim 7, is characterized in that, described non-magnetic material comprises any one in following material:
Aluminium alloy, copper.
9. RCU according to any one of claim 1 to 3, is characterized in that, also comprises:
Be arranged at the CD-ROM drive motor on described housing;
Described CD-ROM drive motor is connected with described processor.
10. RCU according to claim 9, is characterized in that, described CD-ROM drive motor is magnetic shielding motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742145.9A CN104571144A (en) | 2014-12-05 | 2014-12-05 | Remote control unit (RCU) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742145.9A CN104571144A (en) | 2014-12-05 | 2014-12-05 | Remote control unit (RCU) |
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| CN104571144A true CN104571144A (en) | 2015-04-29 |
Family
ID=53087467
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| CN201410742145.9A Pending CN104571144A (en) | 2014-12-05 | 2014-12-05 | Remote control unit (RCU) |
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| CN107238373A (en) * | 2017-05-18 | 2017-10-10 | 诺优信息技术（上海）有限公司 | Unmanned plane aerial photography measures the method and system of antenna for base station engineering parameter |
| CN108445305A (en) * | 2018-03-13 | 2018-08-24 | 南京信息工程大学 | A kind of mobile base station antenna electrical tilt angle detecting system and method |
| CN110579649A (en) * | 2019-10-09 | 2019-12-17 | 广州达奕通信技术有限公司 | Antenna industrial parameter acquisition device |
| CN112671478A (en) * | 2020-12-31 | 2021-04-16 | 联想未来通信科技(重庆)有限公司 | Network element equipment and method for automatically testing antenna parameters of network element equipment |
| CN113008221A (en) * | 2019-12-18 | 2021-06-22 | 中移物联网有限公司 | Antenna attitude test device, method and system |
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Application publication date: 20150429 |