CN101013769A - Separable control device for tilted angle of antenna and control system thereof - Google Patents
Separable control device for tilted angle of antenna and control system thereof Download PDFInfo
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- CN101013769A CN101013769A CNA2007100267756A CN200710026775A CN101013769A CN 101013769 A CN101013769 A CN 101013769A CN A2007100267756 A CNA2007100267756 A CN A2007100267756A CN 200710026775 A CN200710026775 A CN 200710026775A CN 101013769 A CN101013769 A CN 101013769A
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- screw mandrel
- potentiometer
- downtilt angle
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Abstract
The invention discloses one antenna inclination angle isolate control device for antenna wire beam to adjust antenna electricity angle, which comprises motor unit, gear set and relay, wherein, the said gear set is driven by motor unit and gears with antenna bar; the motor unit provides dynamic torque antenna wire bar for axis move; the said level active arm sets spring element at the remote end of wire bar with its near end absorbed by the said wire bar.
Description
Technical field
The present invention relates to the control device of communication antenna tilt angled down, especially relate to the detachable control device of realizing adjusting the antenna downtilt angle in a kind of closed-loop control.
Background technology
In mobile communication system, for realizing coverage optimization to the cellular cell wireless signal, and produce co-channel interference mutually for suppressing co-frequency cell, need reasonably to adjust the tilt angled down of antenna for base station, make it point to the angle and do suitable inclination (also claiming downwards bevel beam) down in the horizontal line direction.The overlay area of the tilt angled down decision antenna beam ripple of antenna.
Adopt the antenna at mechanical angle modulation or fixed electrical tilt angle to be difficult to satisfy the demand that networking is optimized.Electrical tilt antenna be fit to solve very that the big and medium-sized cities district is intensive because of the user, stop spacing little produces distinguish interference problem more, solve the often provisional traffic hot issue of appearance of urban district easily, also can be according to period and the reasonable balanced telephone traffic of adjacent cell.
Because the electrical tilt angle of electrical tilt antenna can wired adjusting at the bottom of tower, or away from carrying out straighforward operation outside the scene, therefore, electrical tilt antenna is used for communication network optimize: the kind and the model that reduce the antenna of needs manufacturing; Simplified field program, the expense that has reduced the sub-district site operation has become basic network optimization requirement.
Modern electrical tilt antenna develops into remote networking control, it mainly is to utilize the RS485 serial communication port by the antenna driver element, carry out AISG (Antenna Interface Standards Group) agreement or other standard agreements, equipment interconnection in cable and machine room is realized the Long-distance Control to electrical tilt antenna.Wherein, the antenna driver element is called RCU (Remote Control Unit) again, or is called RET module (RemoteElectrical Tilt Unit), or is called ACU module (Antenna Control Units).The antenna driver element can be fixed on the antenna housing below, or is installed in antenna body inside, or even the hand-held controller of operation under the base station towers.
Be subjected to the restriction of manufacturing cost, the external antenna controller product that meets the AISG standard on the antenna tower in the market all is open loop control or half-closed loop control mode.Because electrical tilt antenna needs self calibration after just enabling and using for a long time, the omnidistance back and forth movement of the motor in the controller, this self-calibration process has 2-4 branch clock time.If antenna is worked, just unavoidably lose radiofrequency signal in the self-calibration process.
Therefore,, be necessary antenna controller is done suitable improvement design, make antenna not need self-calibration process, and start shooting once more after the motor outage in service and also can know the tilt angled down of antenna at once at present antenna controller product.
Summary of the invention
First purpose of the present invention is to provide a kind of detachable control device of antenna downtilt angle, to solve the problem that exists in the existing antenna controller, realizes closed-loop control with low cost, improves the control performance of electrical tilt antenna.
For solving technical problem of the present invention, the present invention discloses a kind of detachable control device of antenna downtilt angle, is used for being connected with the screw mandrel of antenna, with the indirect regulation phase shifter, and then adjusts antenna lower decline angle, comprises electric motor units, gear train and potentiometer; Described gear train is driven by electric motor units and is meshed with the screw mandrel of antenna, and the screw mandrel that the kinetic moment that electric motor units provides drives antenna axially moves; The lever arm of described potentiometer is at far-end setting the flexible member that lever arm is resetted of the described screw mandrel of its distance, its near-end then with described screw mandrel magnetic attracting.
According to the content that the embodiment of the invention disclosed, for ease of the function of expansion potentiometer, the lever arm of described potentiometer is provided with sliding cap and magnetic element, and described flexible member and magnetic element branch occupy this sliding cap both sides.In like manner, also can on the lever arm of described potentiometer sliding cap be set, described flexible member is arranged on the side of sliding cap away from the screw mandrel of described antenna, and the screw mandrel of described antenna is provided with magnetic element at the near-end of its range potentiometer.
Preferably, described potentiometer adopts linear potentiometer, can be so that judge opening circuit or short trouble of stube cable, and the mechanical breakdown of drive of motor.
More specifically, described gear train comprises driving gear, idler gear and the final stage gear of cascade, and described driving gear is fixedlyed connected with the machine shaft in the described electric motor units, and described final stage gear is meshed with the screw mandrel of antenna.
Described final stage gear hollow becomes axle sleeve, or axle sleeve is set in addition, bore sleeve is provided with the part internal thread, the cut formation burnishing surface in the face of cylinder of the screw mandrel of described antenna, axle sleeve is inserted in it screw mandrel of antenna and the engagement of realization part, the described screw mandrel axial motion of final stage gear driven.
The burnishing surface of described screw mandrel can be provided with the graduated scale of its displacement of reflection, so that the operator understands displacement immediately.
According to the content that embodiments of the invention disclosed, this control device also specifically comprises housing, support and circuit board, described support, circuit board, electric motor units, potentiometer and gear train all are encapsulated in the housing, support provides the structure of fixing circuit board, electric motor units and gear train, and the inactive side of potentiometer and described flexible member is fixed on the circuit board.
Described housing also is provided with data transmission interface and power interface, electrically connects with circuit board, so that power supply is provided and realizes data interaction for this control device.
Second purpose of the present invention is to provide a kind of control system of antenna downtilt angle based on above-mentioned detachable control device.
This control system comprises the transmission device that places the radiating element that is used to form wave beam, the phase shifter that is used to adjust the phase place of the signal that exports radiating element to, displacement in the antenna to be directly proportional with the phase modulation amount of phase shifter, and places antenna to control the control device that transmission device carries out phase modulation outward;
Wherein, described transmission device comprises the screw mandrel of direct or indirect control phase shifter travel(l)ing phase, and described control device is the detachable control device described in the present invention's first purpose.
Described screw mandrel partly exposes to the antenna outside, and inserts the inner and described potentiometer magnetic attracting of described detachable control device.
Described control device and transmission device are respectively arranged with sub-device and female device, form the primary and secondary device that coincide mutually.
A detachable control device and a control centre electrically connect and accept the control of this control centre.
Compared with prior art, the present invention has following beneficial effect:
1, control device of the present invention or control system, detect accurately by carrying out the antenna downtilt angle, owing to have proportional relation between the potential difference of the output of potentiometer and the displacement of its lever arm, lever arm and screw mandrel interlock, there is proportional relation in the displacement of screw mandrel with the amount of phase shift of phase shifter again, therefore, detect in real time by output potential difference potentiometer, obtain the electrical down-tilting angle of antenna main beam after the conversion, thereby realize closed-loop control, promoted whole control of quality of antenna and performance the tilt angled down of electrical tilt antenna;
2, the present invention is by potentiometer indirect detection antenna downtilt angle, and the ratio of precision open loop control mode of its measurement is more accurate, and control procedure does not need self check, has solved the defective that may lose the radio frequency operation signal in the existing controller self-calibration process;
3, in addition,, be easy in the closed-loop control judge opening circuit or short trouble of stube cable owing to use linear potentiometer, and the mechanical breakdown of drive of motor;
4, the present invention independently places control device outside the antenna, can load and unload because of need, needn't all be equipped with control device for every slave antenna, helps saving cost, and can realize centralized management by control centre.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of displacement measurement unit among the present invention;
Fig. 3 is the structural representation of potentiometer among the present invention;
Fig. 4 is the structural representation of a specific embodiment among the present invention.
Embodiment
Control system of the present invention comprises: comprise the radiating element that is used to form wave beam (not shown) that places in the antenna (not shown), be used for adjusting the phase shifter 50 (consulting Fig. 1) of the phase place of the signal that exports radiating element (not shown) to, the transmission device that displacement is directly proportional with the phase modulation amount of phase shifter 50, and place that antenna (not shown) is outer controls the control device that transmission device carries out phase modulation.
Please refer to shown in Figure 1ly, be the structural representation of the detachable control device in the control system of antenna downtilt angle of the present invention.
Fig. 1 has specifically illustrated control device of the present invention, comprising: electric motor units 10, gear train 20 and potentiometer 40.
Wherein, the rotating shaft of described electric motor units 10 is connected with described gear train 20, described gear train 20 connects and describedly places in the antenna and part protrudes in screw mandrel 30 outside the antenna, power from described electric motor units 10 is passed to described screw mandrel 30 by described gear train 20, drives described gear train 20 motions; Wherein terminal and described potentiometer 40 magnetic attracting of described screw mandrel 30, and another end is connected with described phase shifter 50.
Described electric motor units 10 specifically comprises motor, for motor provides the power supply, driving of power source and the driver of control motor movement, at this enumeration not.Described gear train 20 comprises the gear of multi-stage cascade, and wherein, driving gear 21 is connected with machine shaft in the described electric motor units 10, by idler gear 22 and 23 engagements of final stage gear, drives 23 motions of final stage gear.
The last branch in described screw mandrel 30 faces of cylinder is cut, forms burnishing surface.Described screw mandrel 30 screws togather with described final stage gear 23, drives described screw mandrel 30 by described final stage gear 23 and does the upper and lower shifting movement in vertical direction; The displacement of described phase shifter 50 is proportional to the variable quantity of antenna downtilt angle.When motor in the described electric motor units 10 rotates, described screw mandrel 30 does not rotate, be synchronized with described electric motor units 10 and do translational motion vertically, described phase shifter 50 and described potentiometer 40 motions that link make described phase shifter 50 displacement variable be proportional to resistance (or potential difference) variable quantity of described potentiometer 40.
In addition, please also refer to Fig. 2, shown in Figure 3, be respectively the structural representation of described screw mandrel 30 and described potentiometer 40.The end of described screw mandrel 30 is provided with iron nail 31.And described potentiometer 40 is a linear potentiometer, is fixed on the circuit board; Connect a sliding cap 42 on its lever arm 41, the end away from described screw mandrel 30 of this sliding cap 42, connect as flexible member by a spring 44, the static state of the described potentiometer 40 of these spring 44 restrictions do not have the linkage status highest distance position be slightly less than antenna when being in maximum tilt angled down position lever arm 41 be in position on the described potentiometer 40; And in described sliding cap 42 inner chambers, the end near described screw mandrel 30 fixedly installs a magnetic element 43.
So, when the magnet the suction-combining force greater than 500gf, when the locomotivity that promotes described lever arm 41 is 30-250gf, then cannot see under described screw mandrel 30 situations, can be screwed to the state that makes antenna be in maximum tilt angled down to described screw mandrel 30 in advance, also can send the described electric motor units 10 of automatically controlled commands for controlling by operational control center at machine room makes antenna be in the direction rotation of the state of maximum tilt angled down, make the magnetic force adhesive between described magnetic element 43 and the described iron nail 31, drive described sliding cap 42 and described screw mandrel 30 adhesives interlock.Certainly, the magnetic force adhesive between described locator 40 and the described screw mandrel 30 also makes and is convenient to dismounting, maintenance.
In like manner, also on screw mandrel 30, magnetic element is set, iron nail or magnetic element are set on sliding cap 42, also can play same effect.
In addition, convenient for being suitable for as shown in Figure 2, can also mark the scale 32 that reflects its displacement on the burnishing surface of described screw mandrel 30.
Among the present invention, described potentiometer 40 is a linear potentiometer, and described phase shifter 50 can be rotary-type phase shifter; Described potentiometer 40 is as the position detector of described phase shifter 50 displacements, and the resistance change amount of described potentiometer 40 outputs is proportional to the displacement of described phase shifter 50; And resistance variations and absolute value can be measured indirectly by resistance two ends potential difference, obtain through A/D conversion becoming numeral, and then extrapolate the electrical down-tilting angle value of antenna.
Simultaneously, please refer to shown in Figure 4, for controller of the present invention is used in a specific embodiment in the antenna for base station.
One housing 70 is packaged with electric motor units 10, circuit board 60, support 71, gear train 20 and potentiometer 40 in it.The inactive side of potentiometer 40 and described flexible member 44 is fixed on the circuit board 60.Described electric motor units 10 is fixed on the support 71 in the housing 70, and the motor rotating torque is delivered to final stage gear 23 by driving gear 21 and idler gear 22 in the described electric motor units 10; And final stage gear 23 hollows and be provided with the major axis cover, there is internal thread its inner chamber some areas, so final stage gear 23 drives described screw mandrel 30 front and back translational motions.Magnetic element 43 adhesives in iron nail 31 on described screw mandrel 30 ends and the sliding cap of described potentiometer 40 42, the suction of its generation are enough to overcome the stiction of the described lever arm 41 of described potentiometer 40, make described screw mandrel 30 and described potentiometer 40 interlocks.
Described final stage gear 23 can directly form short axle sleeve with its hollow space, but effect is inferior slightly.
In addition, an end of described housing 70 has upper end cover 72, and another end has bottom end cover 73; The sleeve 74 that is wholely set with upper end cover 72; And the back-up ring 75 spacing to described screw mandrel 30, sleeve 74 and back-up ring 75 be common to form sub-device, works in coordination with corresponding female device of the transmission device of antenna, and control device of the present invention more firmly is connected on the antenna.In addition, bottom end cover 73 is provided with condensation apopore 76, and the power interface 77 and the data transmission interface 78 that are installed in the AISG standard specification on the bottom end cover 73.
In addition, the control centre that addresses previously electrically connects by described data transmission interface 78, when a plurality of control device of the present invention and control centre electrically connect, can realize centralized control adjustment antenna lower decline angle.
Therefore, control device of the present invention detects accurately by the carrying out to the antenna downtilt angle, realizes the closed-loop control to the tilt angled down of electrical tilt antenna, has promoted whole control of quality of antenna and performance; And the ratio of precision open loop control mode of measuring is more accurate, and control procedure does not need self check, has solved the defective that may lose the radio frequency operation signal in the existing controller self-calibration process; In addition,, be easy in the closed-loop control judge opening circuit or short trouble of stube cable owing to use linear potentiometer, and the mechanical breakdown of drive of motor.
Claims (13)
1, a kind of detachable control device of antenna downtilt angle is used for being connected with the screw mandrel of antenna, with the indirect regulation phase shifter, and then adjusts antenna lower decline angle, it is characterized in that comprising: electric motor units, gear train and potentiometer; Described gear train is driven by electric motor units and is meshed with the screw mandrel of antenna, and the screw mandrel that the kinetic moment that electric motor units provides drives antenna axially moves; The lever arm of described potentiometer is at far-end setting the flexible member that lever arm is resetted of the described screw mandrel of its distance, its near-end then with described screw mandrel magnetic attracting.
2, the detachable control device of antenna downtilt angle according to claim 1, it is characterized in that: the lever arm of described potentiometer is provided with sliding cap and magnetic element, and described flexible member and magnetic element branch occupy this sliding cap both sides.
3, the detachable control device of antenna downtilt angle according to claim 1, it is characterized in that: the lever arm of described potentiometer is provided with sliding cap, described flexible member is arranged on the side of sliding cap away from the screw mandrel of described antenna, and the screw mandrel of described antenna is provided with magnetic element at the near-end of its range potentiometer.
4, according to the detachable control device of any described antenna downtilt angle in the claim 1 to 3, it is characterized in that: described potentiometer is a linear potentiometer.
5, the detachable control device of antenna downtilt angle according to claim 4, it is characterized in that: described gear train comprises driving gear, idler gear and the final stage gear of cascade, described driving gear is fixedlyed connected with the machine shaft in the described electric motor units, and described final stage gear is meshed with the screw mandrel of antenna.
6, the detachable control device of antenna downtilt angle according to claim 5, it is characterized in that: described final stage gear hollow becomes axle sleeve, or axle sleeve is set in addition, bore sleeve is provided with the part internal thread, the cut formation burnishing surface in the face of cylinder of the screw mandrel of described antenna, axle sleeve is inserted in it screw mandrel of antenna and the engagement of realization part, the described screw mandrel axial motion of final stage gear driven.
7, the detachable control device of antenna downtilt angle according to claim 6 is characterized in that: the burnishing surface of described screw mandrel is provided with the graduated scale of its displacement of reflection.
8, according to the detachable control device of any one described antenna downtilt angle of claim 5 to 7, it is characterized in that: this control device also comprises housing, support and circuit board, described support, circuit board, electric motor units, potentiometer and gear train all are encapsulated in the housing, support provides the structure of fixing circuit board, electric motor units and gear train, and the inactive side of potentiometer and described flexible member is fixed on the circuit board.
9, the detachable control device of antenna downtilt angle according to claim 8: described housing is provided with data transmission interface and power interface, electrically connects with circuit board.
10, a kind of control system of antenna downtilt angle, comprise the transmission device that places the radiating element that is used to form wave beam, the phase shifter that is used to adjust the phase place of the signal that exports radiating element to, displacement in the antenna to be directly proportional, and place antenna to control the control device that transmission device carries out phase modulation outward with the phase modulation amount of phase shifter;
It is characterized in that:
Described transmission device comprises the screw mandrel of direct or indirect control phase shifter travel(l)ing phase, and described control device is any described detachable control device in the claim 1 to 9.
11, the control system of antenna downtilt angle according to claim 10 is characterized in that: described screw mandrel partly exposes to the antenna outside, and inserts the inner and described potentiometer magnetic attracting of described detachable control device.
12, the control system of antenna downtilt angle according to claim 11 is characterized in that: described control device and transmission device are respectively arranged with sub-device and female device, form the primary and secondary device that coincide mutually.
13, according to the control system of any described antenna downtilt angle in the claim 10 to 12, it is characterized in that: a detachable control device and a control centre electrically connect and accept the control of this control centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100267756A CN101013769A (en) | 2007-02-07 | 2007-02-07 | Separable control device for tilted angle of antenna and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100267756A CN101013769A (en) | 2007-02-07 | 2007-02-07 | Separable control device for tilted angle of antenna and control system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101013769A true CN101013769A (en) | 2007-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100267756A Pending CN101013769A (en) | 2007-02-07 | 2007-02-07 | Separable control device for tilted angle of antenna and control system thereof |
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| CN (1) | CN101013769A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013546A (en) * | 2010-11-05 | 2011-04-13 | 江苏省东方世纪网络信息有限公司 | Base station antenna |
| CN102104888A (en) * | 2010-12-22 | 2011-06-22 | 网拓(上海)通信技术有限公司 | Control system for electric tuning antenna of base station |
| CN101621156B (en) * | 2009-08-05 | 2012-11-07 | 宁波天韵天线科技有限公司 | Control device of electrically adjusted antenna |
| WO2012167698A1 (en) * | 2011-06-07 | 2012-12-13 | 华为技术有限公司 | Multi-frequency antenna remote control device and multi-frequency antenna system |
| CN105953042A (en) * | 2016-04-27 | 2016-09-21 | 广东欧珀移动通信有限公司 | Selfie stick rotating method and device and selfie stick |
| CN107425285A (en) * | 2016-05-24 | 2017-12-01 | 上海共联通信信息发展有限公司 | A kind of macro station Downtilt remotely adjusts system |
| CN111682315A (en) * | 2020-06-18 | 2020-09-18 | 武汉虹信通信技术有限责任公司 | Electrically-tunable antenna control system and control method |
| WO2022133653A1 (en) * | 2020-12-21 | 2022-06-30 | 华为技术有限公司 | Antenna control device, antenna, and base station |
-
2007
- 2007-02-07 CN CNA2007100267756A patent/CN101013769A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621156B (en) * | 2009-08-05 | 2012-11-07 | 宁波天韵天线科技有限公司 | Control device of electrically adjusted antenna |
| CN102013546A (en) * | 2010-11-05 | 2011-04-13 | 江苏省东方世纪网络信息有限公司 | Base station antenna |
| CN102104888A (en) * | 2010-12-22 | 2011-06-22 | 网拓(上海)通信技术有限公司 | Control system for electric tuning antenna of base station |
| CN102104888B (en) * | 2010-12-22 | 2014-06-11 | 罗森伯格（上海）通信技术有限公司 | Control system for electric tuning antenna of base station |
| WO2012167698A1 (en) * | 2011-06-07 | 2012-12-13 | 华为技术有限公司 | Multi-frequency antenna remote control device and multi-frequency antenna system |
| US8860334B2 (en) | 2011-06-07 | 2014-10-14 | Huawei Technologies Co., Ltd. | Device for remotely controlling multi-band antenna and multi-band antenna system |
| CN105953042A (en) * | 2016-04-27 | 2016-09-21 | 广东欧珀移动通信有限公司 | Selfie stick rotating method and device and selfie stick |
| CN105953042B (en) * | 2016-04-27 | 2018-02-02 | 广东欧珀移动通信有限公司 | A kind of method, apparatus and self-shooting bar of self-shooting bar rotation |
| CN107425285A (en) * | 2016-05-24 | 2017-12-01 | 上海共联通信信息发展有限公司 | A kind of macro station Downtilt remotely adjusts system |
| CN107425285B (en) * | 2016-05-24 | 2023-11-07 | 上海共联通信信息发展有限公司 | Remote adjusting system for declination angle of macro station antenna |
| CN111682315A (en) * | 2020-06-18 | 2020-09-18 | 武汉虹信通信技术有限责任公司 | Electrically-tunable antenna control system and control method |
| CN111682315B (en) * | 2020-06-18 | 2021-10-26 | 武汉虹信科技发展有限责任公司 | Electrically-tunable antenna control system and control method |
| WO2022133653A1 (en) * | 2020-12-21 | 2022-06-30 | 华为技术有限公司 | Antenna control device, antenna, and base station |
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Open date: 20070808 |