CN113131214A - Antenna dynamic sector scanning control method and control system - Google Patents
Antenna dynamic sector scanning control method and control system Download PDFInfo
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- CN113131214A CN113131214A CN202110334316.4A CN202110334316A CN113131214A CN 113131214 A CN113131214 A CN 113131214A CN 202110334316 A CN202110334316 A CN 202110334316A CN 113131214 A CN113131214 A CN 113131214A
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- antenna
- fan
- scanning
- sector scanning
- range
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/005—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using remotely controlled antenna positioning or scanning
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a control method and a control system for antenna dynamic sector scanning, wherein the control method comprises the following steps: acquiring the central position and the range of the fan scanning at the current moment; acquiring the central position and the range of the fan-sweeping at the next moment, and calculating the offset of the central position and the adjustment quantity of the range of the fan-sweeping at the current moment; if the offset is positive, the fan-scanning center is moved to the right by the offset value, if the offset is negative, the fan-scanning center is moved to the left by the offset value, and then the scanning range is adjusted according to the adjustment amount. The invention discloses a set of antenna dynamic sector scanning control system for special equipment, which enables an antenna to be subjected to sector scanning within a set range at any time and at any position, and the sector scanning range, the sector scanning central position and the sector scanning speed can be dynamically adjusted in the sector scanning process.
Description
Technical Field
The invention relates to a method and a system for controlling the dynamic sector scanning of an antenna for special equipment, which can dynamically adjust the antenna in the sector scanning process.
Background
The antenna sector scanning plays an important role in finding, tracking and distinguishing a target in the working process of certain special equipment.
Particularly, when the attribute and the type of the suspected target need to be judged after the suspected target is found, the target needs to be scanned repeatedly so as to help quickly judge the range of the suspected target and confirm the target.
Because the region to be monitored has uncertainty due to the uncertainty of the target, the current scanning mode of the antenna has poor capability of responding to the dynamic response, and needs to be improved.
Disclosure of Invention
The invention aims to provide an antenna dynamic sector scanning control system and method for special equipment, so that an antenna can be subjected to sector scanning within a set range at any time and at any position.
Therefore, the invention provides an antenna dynamic sector scanning control method on one hand, which comprises the following steps: acquiring the central position and the range of the fan scanning at the current moment; acquiring the central position and the range of the fan-sweeping at the next moment, and calculating the offset of the central position and the adjustment quantity of the range of the fan-sweeping at the current moment; if the offset is positive, the fan-sweeping center is moved to the right by the offset value, if the offset is negative, the fan-sweeping center is moved to the left by the offset value, and then the fan-sweeping range is adjusted according to the adjustment amount.
According to another aspect of the present invention, there is provided an antenna dynamic sector sweep control system, comprising a central control unit, a first frequency conversion controller, a first ac asynchronous motor, a sector sweep center rotation actuator, an antenna angle encoder, a second frequency conversion controller, a second ac asynchronous motor, an antenna sector sweep rotation actuator, a sector sweep range adjustment unit, and a sector sweep center adjustment unit, the antenna dynamic sector sweep control system performing control according to the antenna dynamic sector sweep control method described above.
The invention provides a set of antenna dynamic sector scanning control system and a control method for special equipment, which enable an antenna to be subjected to sector scanning within a set range at any time and at any position, and enable the sector scanning range, the sector scanning central position and the sector scanning speed to be dynamically adjusted in the sector scanning process.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic diagram of an antenna dynamic sector sweep control system according to the present invention;
fig. 2 shows a flow chart of an antenna dynamic sector sweep control method according to the present invention; and
fig. 3 shows a schematic diagram of an antenna dynamic sector sweep control system of a comparative embodiment.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Please refer to fig. 1: in the embodiment of the invention, software is used for controlling a first variable frequency controller to drive a first alternating current asynchronous motor to drive an antenna to perform scanning motion; and controlling a second variable frequency controller to drive a second alternating current asynchronous motor to drive the central position of the antenna to rotate by using software.
The antenna angle encoder is linked with the antenna, the current angle of the antenna is fed back to the central processing unit in real time, a basis is provided for calculation of a sector scanning program, the antenna central position encoder feeds back the central position of sector scanning of the current antenna to the central processing unit, and the sector scanning program controls the rotation speed and the rotation direction of the antenna according to the current sector scanning center and the set sector scanning angle.
The fan-sweeping center adjusting unit sends fan-sweeping center offset to the central processing unit, the offset is negative, and the central processing unit moves the fan-sweeping center to the left by offset units; if the offset is positive, the central processing unit moves the fan-scanning center to the right by an offset unit; the fan sweep range adjustment unit sends the size of the fan sweep angle to the central processing unit, which controls the antenna to scan 1/2 the fan sweep angle on both sides of the fan sweep center, respectively.
In the process of fan scanning operation, a control program detects the offset of a fan scanning center and the adjustment quantity of a fan scanning range in real time, when the change of the offset of the fan scanning center is detected, the central processing unit calculates the positive and negative values and the size of the offset, the offset is negative, and the central processing unit moves the fan scanning center by an offset unit to the left; if the offset is positive, the central processing unit moves the fan-scanning center to the right by an offset unit; when the change of the adjustment amount of the fan-scanning range is detected, the central processing unit calculates the adjustment amount, and the central processing unit controls the antenna to scan 1/2 fan-scanning angles at two sides of the fan-scanning center respectively.
Please refer to fig. 2: when the system works, the current position is taken as the fan scanning center, the current fan scanning angle (the default value of system power-on is 30 degrees) is taken as the range, and the symmetrical scanning motion is performed on the left side and the right side of the fan scanning center. In the scanning process, the control program calculates the difference between the scanning position of the antenna and the left inflection point or the right inflection point according to the actual angle fed back by the antenna, and controls the rotation speed of the antenna by the difference so as to stop scanning the antenna at the inflection point position. After the antenna pauses for 1 second, the reverse direction accelerates from zero speed to maximum speed.
In one embodiment, the fan-scan center position at the next time is obtained in the order of prediction, statistics, manual input second-to-first priority.
Specifically, whether the appearance rule of the target accords with a preset empirical model or not is judged, if so, the position appearing at the next moment is directly predicted and is used as the central position of the fan sweep, otherwise, the average value of the appearance positions of the observation targets is obtained through statistical calculation according to historical observation data of the appearance positions of the observation targets and is used as the central position of the fan sweep, and when manual input exists, manual input information is used as the central position of the fan sweep.
The manual input information includes a position mark of the observation target on the electronic map, and a fan-sweep angle input of the central position or the appearance range of the observation target.
Please refer to fig. 3: in the comparative example, the frequency conversion controller is controlled by software to drive the alternating current asynchronous motor to drive the antenna to perform scanning motion. The antenna angle encoder is linked with the antenna, feeds the current angle of the antenna back to the central processing unit in real time, provides basis for calculation of a sector scanning program, and controls the rotation speed and the rotation direction of the antenna by the sector scanning program according to the difference between the current sector scanning range and the set sector scanning range.
The invention has the beneficial effects that:
1. dynamic adjustment of fan sweep range and fan sweep center
In the invention, the central control unit reads the adjustment quantity of the sector scanning center, the adjustment quantity of the sector scanning range and the actual angle of the antenna sector scanning in real time through a specially-implanted control program, and the three are fused together for processing, so that the dynamic adjustment of the frequency and the direction of the power output of the two variable frequency controllers can be realized, and the dynamic adjustment of the antenna sector scanning motion can be further realized.
Compared with the comparative embodiment, the invention adopts two sets of actuating mechanisms to drive the antenna to perform sector scanning, improves the dynamic response capability of the system operation to the maximum extent, and meets the requirements of dynamically adjusting the monitoring area and the monitoring position.
2. Dynamic adjustment of sweeping speed
The antenna unit of the special equipment works in the open air, the load acting on the transmission device is extremely complex, the load of the antenna is constantly changed in the working process, and the antenna is greatly influenced by factors such as wind speed and wind direction in the natural environment, system rotating speed and acceleration and the like.
In the process of sector scanning, due to frequent reversing of a servo motor of a driving system, particularly sudden change of the instantaneous speed of the reversing, the system can generate large impact, the destructive performance of the impact force between transmission gears on the system cannot be ignored, the sector scanning speed is dynamically adjusted, when the sector scanning of the antenna is close to an inflection point position, the speed is linearly reduced to zero, after 1 second of pause, the speed is reversely accelerated to the maximum speed from the zero line, and the damage of the impact force between the transmission gears on the system in the process of sector scanning of the antenna is reduced to the maximum extent.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A method for controlling the dynamic sector scanning of an antenna is characterized by comprising the following steps:
acquiring the central position and the range of the fan scanning at the current moment;
acquiring the central position and the range of the fan-sweeping at the next moment, and calculating the offset of the central position and the adjustment quantity of the range of the fan-sweeping at the current moment;
if the offset is positive, the fan-sweeping center is moved to the right by the offset value, if the offset is negative, the fan-sweeping center is moved to the left by the offset value, and then the fan-sweeping range is adjusted according to the adjustment amount.
2. The method as claimed in claim 1, further comprising calculating a difference between the current position of the antenna scanning and the left inflection point or the right inflection point according to the actual angle fed back by the antenna, and controlling the rotation speed of the antenna according to the difference to stop the antenna scanning at the inflection point, and accelerating the antenna from zero speed to the maximum speed in the reverse direction after the antenna stops for 1 second.
3. An antenna dynamic sector scanning control system, characterized by comprising a central control unit, a first frequency conversion controller, a first alternating current asynchronous motor, a sector scanning center rotation executing mechanism, an antenna angle encoder, a second frequency conversion controller, a second alternating current asynchronous motor, an antenna sector scanning rotation executing mechanism, a sector scanning range adjusting unit and a sector scanning center adjusting unit, wherein the antenna dynamic sector scanning control system is controlled according to the antenna dynamic sector scanning control method of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110334316.4A CN113131214A (en) | 2021-03-29 | 2021-03-29 | Antenna dynamic sector scanning control method and control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110334316.4A CN113131214A (en) | 2021-03-29 | 2021-03-29 | Antenna dynamic sector scanning control method and control system |
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| CN113131214A true CN113131214A (en) | 2021-07-16 |
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| CN202110334316.4A Pending CN113131214A (en) | 2021-03-29 | 2021-03-29 | Antenna dynamic sector scanning control method and control system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294627A (en) * | 1994-04-27 | 1995-11-10 | Tech Res & Dev Inst Of Japan Def Agency | Radar apparatus azimuth scan width-controlling type |
| JPH1144756A (en) * | 1997-07-29 | 1999-02-16 | Fujitsu Ten Ltd | Radar sensor centering device |
| JP2003294829A (en) * | 2002-03-29 | 2003-10-15 | Taiyo Musen Co Ltd | Antenna scanning system for two-dimensional radar |
| US20050140541A1 (en) * | 2003-10-24 | 2005-06-30 | Fujitsu Ten Limited | Radar scanning method |
| JP2008096196A (en) * | 2006-10-10 | 2008-04-24 | Mitsubishi Electric Corp | In-vehicle radar system |
| CN101344590A (en) * | 2008-08-25 | 2009-01-14 | 北京航空航天大学 | Wide area observation method of sector scanning |
| CN102075227A (en) * | 2009-11-24 | 2011-05-25 | 中国移动通信集团公司 | System and method for controlling satellite finding antenna |
| CN106383332A (en) * | 2016-07-26 | 2017-02-08 | 中国船舶重工集团公司第七二四研究所 | Adaptive adjustment method for scanning mode of radar at passive working mode |
| CN109946717A (en) * | 2019-02-28 | 2019-06-28 | 西安思丹德信息技术有限公司 | A kind of wireless tracking system and tracking |
| CN209119358U (en) * | 2018-12-06 | 2019-07-16 | 西安希德雷达科技有限公司 | A kind of antenna driving control system |
-
2021
- 2021-03-29 CN CN202110334316.4A patent/CN113131214A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294627A (en) * | 1994-04-27 | 1995-11-10 | Tech Res & Dev Inst Of Japan Def Agency | Radar apparatus azimuth scan width-controlling type |
| JPH1144756A (en) * | 1997-07-29 | 1999-02-16 | Fujitsu Ten Ltd | Radar sensor centering device |
| JP2003294829A (en) * | 2002-03-29 | 2003-10-15 | Taiyo Musen Co Ltd | Antenna scanning system for two-dimensional radar |
| US20050140541A1 (en) * | 2003-10-24 | 2005-06-30 | Fujitsu Ten Limited | Radar scanning method |
| JP2008096196A (en) * | 2006-10-10 | 2008-04-24 | Mitsubishi Electric Corp | In-vehicle radar system |
| CN101344590A (en) * | 2008-08-25 | 2009-01-14 | 北京航空航天大学 | Wide area observation method of sector scanning |
| CN102075227A (en) * | 2009-11-24 | 2011-05-25 | 中国移动通信集团公司 | System and method for controlling satellite finding antenna |
| CN106383332A (en) * | 2016-07-26 | 2017-02-08 | 中国船舶重工集团公司第七二四研究所 | Adaptive adjustment method for scanning mode of radar at passive working mode |
| CN209119358U (en) * | 2018-12-06 | 2019-07-16 | 西安希德雷达科技有限公司 | A kind of antenna driving control system |
| CN109946717A (en) * | 2019-02-28 | 2019-06-28 | 西安思丹德信息技术有限公司 | A kind of wireless tracking system and tracking |
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