CN103904431A - Electric tilt antenna and control device thereof - Google Patents
Electric tilt antenna and control device thereof Download PDFInfo
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- CN103904431A CN103904431A CN201410143649.9A CN201410143649A CN103904431A CN 103904431 A CN103904431 A CN 103904431A CN 201410143649 A CN201410143649 A CN 201410143649A CN 103904431 A CN103904431 A CN 103904431A
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Abstract
The invention discloses a control device of an electric tilt antenna. The control device comprises a processor, a communication module, a storage module, a motor driving module, a power module and a control terminal interface, wherein the communication module, the storage module, the motor driving module, the power module and the control terminal interface are connected with the processor respectively, and the power module is further connected with the motor driving module. The control device outputs pulse signals through the control terminal interface, and therefore one or more phase shift transmission devices of the multi-frequency electric tilt antenna can be controlled selectively. Thus, not only can the structure of the antenna be simplified, but also cost of the electric tilt antenna can be saved. In addition, the invention further discloses the electric tilt antenna achieving the purpose.
Description
Technical field
The present invention relates to electrical tilt antenna field, relate in particular to the Long-distance Control of the antenna lower decline angle to electrical tilt antenna.
Background technology
In current mobile communication system, multiband electrical tilt antenna is widely used in base station.Adopt in the industry RET(Remote Electrical Tilt, RET) device carries out long-range electricity regulation and control system to the lower decline angle of antenna oscillator, thereby optimization wireless network, a but external RET device, can only regulate for the lower decline angle of the antenna oscillator of the signal of the same frequency range of radiation, and the lower decline angle that multiband electrical tilt antenna (being designated hereinafter simply as multifrequency antenna) needs the multiple RET devices of corresponding configuration could realize the antenna oscillator to each frequency range regulates, each RET device is including corresponding circuit for controlling motor with comprise the phase shift driving device motor in addition, like this, interface and the control cables thereof of the multiple RET that form thus can make whole antenna internal structure become very complicated, and increase the cost of antenna.
In order to solve multifrequency antenna, because needs arrange, multiple RET cause baroque problem in the industry, propose, in the radome inside of multifrequency antenna, a total circuit for controlling motor is set, and use it to control the motor of multiple phase shift driving devices.The cost that this simplifies to a certain extent the internal structure of multifrequency antenna and reduces multifrequency antenna, but when this total circuit for controlling motor breaks down, all motors all cannot be regulated, can affect the normal use of whole antenna, reliability is low; And, in the time keeping in repair or change total circuit for controlling motor, need to open whole radome, operate more difficult.
In order to solve the problem to total circuit for controlling motor maintain and replace operating difficulties, propose total circuit for controlling motor to be split as control unit and two parts of switch switching unit in the industry, switch switching unit is placed in radome, be connected with phase shift driving device; Again control unit is placed on outside radome, but have need to control phase shift time, again control unit and switch switching unit are coupled together, in the time not needing to control phase shift, control unit is separated with switch switching unit, can further simplify like this parts of antenna inside, and in the time that control unit breaks down, can keep in repair outward and change at radome, difficulty be lower.If but in the time that switch switching unit breaks down, need to open equally radome and keep in repair or change, operating difficulties, and in radome, there are multiple switch switching units, structure is still simplified not.
Summary of the invention
The object of the present invention is to provide a kind of control device of electrical tilt antenna, by single face output pulse signal, in order to optionally to control the phase shift driving device of lower decline angle of antenna oscillator of one or more frequency ranges.
Another object of the present invention is to provide a kind of electrical tilt antenna, optionally control the phase shift driving device of the lower decline angle of the antenna oscillator of one or more frequency ranges with a control device output pulse signal of realizing above-mentioned purpose, internal structure is simple.
The control device of electrical tilt antenna, comprises processor, the communication module, memory module, multiple motor drive module and the power module that are connected respectively with described processor, and the control end interface being connected with each described motor drive module; Described communication module, for receiving extraneous instruction and sending command signal to described processor; Described memory module, for storing configuration file and the driver of described processor; Described processor, move according to described driver after pin and parameter configuration for carrying out according to described configuration file, receive the command signal that described communication module sends, then need to send control command at least one in described multiple motor drive modules according to this command signal; Each described each motor drive module, it is exported through described control end interface after received control command is converted into pulse signal; Described power module is connected with each described motor drive module, for giving described processor and motor drive module power supply described in each.
Electrical tilt antenna, in radome, be provided with at least one sub antenna for the signal of a frequency range of radiation, phase shift driving device of each described sub antenna separate configurations, described in each, phase shift driving device is connected with phase shift end interface, in described radome, also comprise a control device as claimed in claim 1, described phase shift end interface is for being connected with described control end Interface Matching, each described phase shift driving device is for receiving the phase place that produces machine power after the pulse signal of described control device and change the radiation signal of described sub antenna by the described phase shift end interface that is connected and described control end interface.
Further, described control end interface is the plug with multiple contact pins, and described phase shift end interface is for mating with described plug the socket being connected.
Beneficial effect of the present invention is as follows:
1, control device adopts embedded design theory, according to information such as the frequency range of connected electrical tilt antenna, specification and quantity, setting in advance corresponding configuration file and driver leaves in memory module, thereby realize the control of a control device to one or more phase shift gear units in electrical tilt antenna, flexibility is high.
2, electrical tilt antenna by the direct transmitted signal of control device to phase shift driving device, thereby drive motors rotates, and omits the hardware device such as switch switching circuit, simplifies its internal structure.
3, electrical tilt antenna is placed on control device outside radome, the mode plugging by plug and socket, simply also realizing neatly control device is connected with phase shift driving device, in the time not needing motor to drive, control device is separated with phase shift driving device, can more simplify the structure of electrical tilt antenna; And in the time that control device breaks down, can in the situation that not needing to open radome, repair or replace control device, improve the reliability of whole system.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention three overall structure figure of electrical tilt antenna frequently;
Fig. 2 is the structure chart of the motor of the embodiment of the present invention;
Fig. 3 is the structure chart of the screw-and-nut transmission device of the embodiment of the present invention;
Fig. 4 is the circuit block diagram of the control device of the embodiment of the present invention;
Fig. 5 is the output interface of the embodiment of the present invention and the structure chart being separated of input interface;
Fig. 6 is the output interface of the embodiment of the present invention and the structure chart plugging of input interface;
Fig. 7 is the overall structure figure of another embodiment of the present invention double frequency electrical tilt antenna.
Embodiment
Three frequency electrical tilt antennas as shown in Figure 1, in the radome inside of this electrical tilt antenna, be provided with the sub antenna that three row are made up of multiple antenna oscillators, every row sub antenna is for realizing the signal radiation of a frequency range, every row sub antenna is provided with the phase shift driving device 1 of connection corresponding to it, and each phase shift driving device 1 is all connected with phase shift end interface; In radome outside, be provided be connected control device 3 and control end interface, in the time that needs carry out phase shift to sub antenna, control end interface is connected with phase shift end interface; In the time not needing sub antenna to carry out phase shift, control end interface and phase shift end interface disconnect.
So that wherein a row sub antenna and connected phase shift driving device 1 are as example, structure and annexation to its inside describe below, the structure of other two pairs of sub antennas and phase shift driving device 1 can the like.Phase shift driving device 1 comprises the motor 11, screw rod-transmission device 12 and the phase shifter 13 that connect successively.The motor 11 here can be PM reducing motor.
As shown in Figure 2, the exterior contour of motor 11 is a metal screen case 111, the two ends of metal screen case 111 first cover with metal cover board 118, the middle part of this metal cover board 118 is provided with the through hole that only current supply cable 14 passes, make the external overall of motor 11 form the metallic cavity with shield effectiveness of a sealing, can play like this effect that prevents electromagnetic exposure; Be buckled on the outermost layer at two ends of metal screen case 111 with the mount pad 112 of plastics again, can further prevent electromagnetic exposure, be conducive to reduce the impact on antenna intermodulation index.On mount pad 112, be provided with alignment pin 114, the bottom of mount pad 112 is provided with two outstanding buckles 113, by buckle 113, whole metal screen case 111 assemblies is fixed on antenna-reflected plate, plays effective buffer action.
As shown in Figure 3, screw rod-transmission device 12 comprises nut 121, screw rod 122, two blocks 123 and supports 124, one end of screw rod 122 is connected with motor 11, the other end is connected with support 124, support 124 is fixed on screw rod 122 on antenna-reflected plate, block 123 is separately fixed at the two ends of screw rod 122, and nut 121 is set on two screw rods 122 between block 123.Phase shifter 13 is provided with shackle rod 131, and shackle rod 131 is through support 124, and its one end is fixed on nut 121, can change by the motion of nut 121 motion of shackle rod 131.
Phase shift end interface is the structure of one point of multichannel, its each divergent ends is connected with each motor 11 respectively by cable 14, here cable 14 is preferably shielded multiconductor cable, the screen of one end port that this cable 14 is connected with phase shift end interface is designed to ground connection, can prevent like this electromagnetic exposure, improve anti-interference index; As shown in Figure 2, on the screen of cable 14 and motor 11 junctions, be provided with becket 115, ring is tightly on cable 14, on becket 115, be provided with a metal sheeting 116, cable 14 is fixed in the case body of motor by metal sheeting 116, effectively prevents that cable 14 is connected and comes off with motor 11, has good earthing effect, can prevent further like this electromagnetic exposure, improve anti-interference index.
As shown in Figure 4, control device 3, exterior contour is a metallic cavity 31, the communication module, memory module, three motor drive modules, power module and the control end interfaces that in this metallic cavity 31, comprise processor, be connected respectively with processor, control end interface is connected with each motor drive module, power module is connected with each motor drive module and is its power supply, and this control end interface receives the physical interface gathering of the feedback signal of phase shift driving device 1 as motor drive module foreign exchanges and processor.
Communication module is connected with extraneous controller (as computer etc.), receives extraneous instruction and sends command signal to processor.Memory module, storage configuration file and the driver transferred for processor, this configuration file is different and according to specifically writing according to the address of signal reception/transmission path between the difference of number of motors in electrical tilt antenna and different motors and motor drive module.This memory module is preferably EEPROM(Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)), EEPROM can change or write new configuration file and driver as required.After control module is connected with phase shift transmission module with control end interface by the phase shift end interface being connected, processor transfer configuration file definition for transmit common data and for the pin of each motor drive module transmission data after, then move according to driver.In the time of needs phase shift, this processor sends control command to corresponding one or more motor drive modules by the pin corresponding with each motor drive module.Motor drive module is exported by control end interface after receiving and being translated into pulse signal after the control command that processor sends.External power source is by cable transfer direct current to power module, and power module is processor and motor drive ic power supply.
Further, control device 3 also comprises temperature sensor, and the temperature of the whole applied environment to control device 3 is monitored, and Monitoring Data is sent to processor.Because electrical tilt antenna is different to the requirement of the dynamics of phase shift and speed under different temperatures, processor can be adjusted control signal according to this Monitoring Data, the phase shift dynamics that makes the phase shift driving device 1 being connected with control device 3 suitably and speed steady; When electrical tilt antenna is during at low temperature environment, the monitoring information that processor is sent out according to temperature sensor sends control signal to motor drive module, turn round with lower rotating speed, higher output torque to the motor of phase shift driving device with pulse signal again, overcome the subsidiary next resistance of low temperature environment, thereby improve the reliability of system; When electrical tilt antenna is during in hot environment, processor send control signal to motor drive module with pulse signal to the motor of phase shift driving device with higher rotating speed, lower output torque running.
Further, between power module and external power source, be also provided with lightning protection circuit, control device 3 is played to lightning protection effect.
Further, motor 11 afterbodys of each phase shift transmission module 1 are built-in with position sensing module 117, this position sensing module 117 adopts Hall element, between each position sensing module 117 and processor, be provided with feedback link, this position sensing module 117 feeds back to processor by the pulse signal of the information that is comprising motor 11 positions by the control end interface and the phase shift end interface that are connected, processor obtains the position of motor 11 according to this feedback information, and determines whether needing the running of further drive motors 11 with this.
As shown in Figure 5 and Figure 6, phase shift end interface is socket 2, and control end interface is plug 4, and in like manner, phase shift end interface is that plug, control end interface are that socket also can be realized corresponding function.This sentences phase shift end interface is socket 2, control end interface is that plug 4 is example, internal circuit configuration to socket 2 and plug 4 is described further: plug 4 is provided with multiple contact pins 41, each motor drive module is electrically connected by internal circuit and a contact pin 41, in the time that control device 3 has output of pulse signal, by contact pin 41, pulse signal is transferred out; Part contact pin 41 is electrically connected by internal circuit with the processor of feedback link in addition, for the processor that feeds back to of delivering position sensing module 117.Socket 2 is provided with multiple corresponding jacks according to contact pin 41 quantity of plug 4 and position, the motor 11 of each phase shift driving device is connected with a jack, part jack and position sensing module 117 are electrically connected by internal circuit, for the corresponding contact pin of feeding back to of delivering position sensing module 117.In the time that plug 4 inserts socket 2, contact pin 41 is realized and being electrically contacted with jack, and pulse signal is flowed to jack by contact pin 41, and jack is input to this pulse signal on the motor 11 of the phase shift driving device being attached thereto, and motor 11 rotates according to the requirement of pulse signal.
Below the external structure of plug 4 and socket 2 is described further: socket 2 outer setting have flange 21, the both sides of flange 21 are provided with two open tubular columns 22, the space of these open tubular column 22 inside is larger, in screw is inserted in open tubular column 22, socket 2 is fixed on a bracing frame 23, between socket 2 and bracing frame 23 contraposition unpunctual, because open tubular column 22 inner spaces are larger, in open tubular column 22, still have and can, for the space of screw activity, realize deviation-correcting function.Bracing frame 23 comprises underframe 231 and is positioned at underframe 231 two ends two position-limited racks 232 perpendicular to underframe 231, and three has formed a semi-enclosed containing cavity jointly.Flange 21 is fixed on the underframe 231 of bracing frame 23, and underframe 231 is Openworks shape, socket 2 is exposed and can not blocked by underframe 231, and the position-limited rack 232 of bracing frame 23 extends to the rightabout of flange 21.The other end that position-limited rack 232 is connected with underframe 231 is provided with the fixed mount 233 outwards folding, fixed mount 233 is fixed on the corner bracket plate 5 in radome, thereby whole socket 2 is all fixed on corner bracket plate 5, when socket 2 and plug 4 are plugged, there is impetus, convenient pegging graft.
3 of the control device of the technical program for three frequently the situation of electrical tilt antennas describe, same reason, as shown in Figure 7, also can be applicable equally for double frequency electrical tilt antenna, only need to write in advance the configuration file that is applicable to double frequency electrical tilt antenna, leave memory module in and allocate for processor.A control device 3 can optionally connect one or more phase shift driving devices 1 in an electrical tilt antenna by control end interface as required, connect one to one and need to connecting interface be set respectively on phase shift driving device 1 and control device 3, saved the cost of electrical tilt antenna and simplified the structure of electrical tilt antenna inside; The direct output pulse signal of control device 3, to motor 11, has been saved a large amount of switching devices, has simplified electrical tilt antenna internal structure and has saved electrical tilt antenna cost.And while not needing to regulate at ordinary times the antenna lower decline angle of aerial array, plug 4 separates with socket 2; In the time having the antenna lower decline angle that need to regulate aerial array, just control device 3 and phase shift driving device 1 are realized and being electrically contacted by plug 4 and socket 2, can further simplify like this structure of antenna; And a control device 3 can be used in conjunction with multiple electrical tilt antennas, more save cost; In addition, in the time that control device 3 breaks down, because control device 3 is arranged in radome, can directly unclamp two captive screw 43, improve the reliability of whole system.
Further emphasize, the electrical tilt antenna of the present embodiment has all used the structure of metallic cavity on the surface of phase shift driving device 1 and control device 3, cable 14 adopts shielded multiconductor cable, all be set to ground connection in cable 14 and the junction of phase shift end interface and motor, on the whole electrical tilt antenna is done to shielding measure, reduce the impact on antenna intermodulation index, reduce electromagnetic interference.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a control device for electrical tilt antenna, is characterized in that: comprise processor, the communication module, memory module, multiple motor drive module and the power module that are connected respectively with described processor, and the control end interface being connected with each described motor drive module; Described communication module, for receiving extraneous instruction and sending command signal to described processor; Described memory module, for storing configuration file and the driver of described processor; Described processor, move according to described driver after pin and parameter configuration for carrying out according to described configuration file, receive the command signal that described communication module sends, then need to send control command at least one in described multiple motor drive modules according to this command signal; Each described each motor drive module, it is exported through described control end interface after received control command is converted into pulse signal; Described power module is connected with each described motor drive module, for giving described processor and motor drive module power supply described in each.
2. control device according to claim 1, is characterized in that: also comprise temperature sensor, be connected with described processor, for monitoring ambient temperature feedback monitoring information to described processor; Described processor, the monitoring information feeding back for the command signal that sends according to received described communication module and described temperature sensor sends control command to motor drive module described at least one.
3. control device according to claim 1, it is characterized in that: described control end interface is connected with described processor, described control end interface is for receiving from the feedback information of phase shift driving device and feeding back to processor, described processor, sends control command to motor drive module described at least one for the command signal and the described feedback information that send according to received described communication module.
4. an electrical tilt antenna, it is characterized in that: in radome, be provided with at least one sub antenna for the signal of a frequency range of radiation, phase shift driving device of each described sub antenna separate configurations, described in each, phase shift driving device is connected with phase shift end interface, in described radome, also comprise a control device as claimed in claim 1, described phase shift end interface is for being connected with described control end Interface Matching, each described phase shift driving device is for receiving the phase place that produces machine power after the pulse signal of described control device and change the radiation signal of described sub antenna by the described phase shift end interface that is connected and described control end interface.
5. control device according to claim 4, is characterized in that: described control device also comprises temperature sensor, is connected, for monitoring ambient temperature feedback monitoring information to described processor with described processor; Described processor, the monitoring information feeding back for the command signal that sends according to received described communication module and described temperature sensor sends control command to motor drive module described at least one.
6. electrical tilt antenna according to claim 4, it is characterized in that: described phase shift driving device is provided with position sensing module, described position sensing module for feed back by the described phase shift end interface that is connected and described control end interface comprise described phase shift driving device motor position feed back to described processor.
7. electrical tilt antenna according to claim 4, is characterized in that: described control end interface is the plug with multiple contact pins, and described phase shift end interface is for mating with described plug the socket being connected.
8. electrical tilt antenna according to claim 4, is characterized in that: described phase shift end interface is the plug with multiple contact pins, and described control end interface is for mating with described plug the socket being connected.
9. according to the electrical tilt antenna described in claim 7 or 8, it is characterized in that: described control end interface is provided with lead, described phase shift end interface is provided with and mates the pilot hole of pegging graft with this lead.
10. electrical tilt antenna according to claim 4, it is characterized in that: described phase shift driving device is arranged in metallic cavity, between described phase shift driving device and described phase shift end interface, be provided with cable, port, the two ends ground connection of this cable, described control device is arranged in metallic cavity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143649.9A CN103904431A (en) | 2014-04-10 | 2014-04-10 | Electric tilt antenna and control device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143649.9A CN103904431A (en) | 2014-04-10 | 2014-04-10 | Electric tilt antenna and control device thereof |
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| CN103904431A true CN103904431A (en) | 2014-07-02 |
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| CN201410143649.9A Pending CN103904431A (en) | 2014-04-10 | 2014-04-10 | Electric tilt antenna and control device thereof |
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| CN104571144A (en) * | 2014-12-05 | 2015-04-29 | 中国联合网络通信集团有限公司 | Remote control unit (RCU) |
| CN105048095A (en) * | 2015-09-10 | 2015-11-11 | 武汉虹信通信技术有限责任公司 | Electrically-controlled antenna control device with pluggable function |
| CN105990687A (en) * | 2015-02-17 | 2016-10-05 | 安弗施无线射频系统（上海）有限公司 | Antenna driving device, phase shifting device and electrically tunable antenna |
| CN106505319A (en) * | 2016-11-24 | 2017-03-15 | 广东博纬通信科技有限公司 | A kind of modularity actuating device and multifrequency antenna |
| CN108432040A (en) * | 2015-12-31 | 2018-08-21 | 华为技术有限公司 | Include the antenna of beam forming device |
| CN109216921A (en) * | 2018-09-26 | 2019-01-15 | 中天宽带技术有限公司 | The one of a kind of single multi-load drags multiple antennas remote control unit |
| 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 |
| CN112652869A (en) * | 2019-10-10 | 2021-04-13 | 中兴通讯股份有限公司 | Phase shifter, electrically tunable antenna, network equipment and phase shifter manufacturing method |
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| CN112652869A (en) * | 2019-10-10 | 2021-04-13 | 中兴通讯股份有限公司 | Phase shifter, electrically tunable antenna, network equipment and phase shifter manufacturing 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 |
| 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 |
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Application publication date: 20140702 |