CN105353241A - Microwave darkroom test system based on wireless control and wireless control method - Google Patents
Microwave darkroom test system based on wireless control and wireless control method Download PDFInfo
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- CN105353241A CN105353241A CN201510770635.4A CN201510770635A CN105353241A CN 105353241 A CN105353241 A CN 105353241A CN 201510770635 A CN201510770635 A CN 201510770635A CN 105353241 A CN105353241 A CN 105353241A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to a microwave darkroom test system based on wireless control and a wireless control method. A host computer communicates with an emission radio station via a 485 serial port, motion control instructions of axial motors are transmitted to an emission antenna reception radio station, a three-axis holder reception radio station and a reception radio station of a reception antenna scanning rack via a radio station, and the emission antenna reception radio station, the three-axis holder reception radio station and the reception radio station of the reception antenna scanning rack convert the control instructions into a system five-dimensional motion control instruction via decoders, and controls motion of the motors via encoders of themselves. Five-dimension, including horizontal, vertical, oriented, pitching and polarized, movement of the reception antenna as well as the polarized movement of the emission antenna can be completed, and requirements for microwave darkroom test can be met.
Description
Technical field
The invention belongs to Electromagnetic Field and Microwave Technology, be specifically related to microwave dark room technical field of performance test, be mainly used in the Acceptance Test of newly-built microwave dark room.
Background technology
The major function of microwave dark room is the unreflected free space of simulation, and the maximum reflection level in dead zone is its topmost technical indicator.This method of testing adopts free space standing-wave ratio (SWR) method.It emitting antenna is placed in one end, darkroom (front end), and be placed in by receiving antenna in dead zone to be identified, darkroom.Continuous moving receiving antenna in different visual angles situation, the standing wave curve according to record obtains reflective level.The foundation that this method measures microwave dark room quiet zone reflectivity level is: the concept of using waveguide slotted line test terminal load reflection voltage standing wave ratio (VSWR), darkroom is regarded as waveguide slotted line, test antenna regards as probe, and the absorbing material of laying regards as load, and emitting antenna regards as driving source.Unlike, can make " probe " of directive test antenna here, replace the one-dimensional space of slotted line with three dimensions, thus power and the angle of arrival of any direction wall reflection ripple can be measured.
Because test antenna needs to move in microwave dark room dead zone, existing method of testing is by Serve Motor Control horizontal and vertical mobile device, antenna is driven in microwave dark room dead zone by set stroke motion with this, host computer, by the servomotor on motor cable, scrambler cable, detent cable control mobile device, drives receiving antenna motion thus.This mode, because Electric Machine Control line is too many, have uncertainty, and the existence of motor lines often can disturb the tangential movement of mobile device on the impact of test result.By the impact of servomotor weight and motor cable etc., present stage, this pattern can only make antenna move in horizontal and vertical direction, the motion of antenna bearingt, pitching, polarization cannot be met, and because some large-scale microwave dark rooms transmit and receive the distant of antennas, the problem that is synchronized with the movement of emitting antenna and receiving antenna cannot solve always, cannot solve in known manner microwave dark room test in multipath loss test item.
The present invention is by employing wireless program-controlled electric machine technology, solve the interference problem of Serve Motor Control line, by adopting low frequency communication mode, effectively can solve the impact of radiowave on test result, simultaneously can by the mode of wireless station, control the motion of test macro in level, vertical, orientation, pitching, polarization, also emitting antenna mode can be controlled, solve the stationary problem between dual-mode antenna, complete the test problem of microwave dark room multipath loss, the test error problem that wireless program-controlled motor technology can avoid a large amount of control line of servomotor to introduce.
From domestic disclosed technical literature, not yet find the technology report of the application of wireless program-controlled motor in microwave dark room test, what disclosed technical literature was mainly reported mostly is existing Serve Motor Control pattern, such as:
1) " microwave dark room test Design of Motion Control System " (Jiang Wenxi, the Liu Jianxue work) of " manufacturing equipment " is published in.This test macro is moved by the horizontal and vertical of servo control system, cannot solve the automatic control of the orientation of antenna, pitching, polarization etc.
2) control mode of what " emulation in dead zone, darkroom and test " (Lee Hua Minzhu) adopted is also servomotor, same exist the control ability that cannot complete other three-dimensional motion of antenna.
Summary of the invention
The technical matters solved
There are following 3 deficiencies in existing microwave dark room test macro:
1, in existing testing apparatus, the various cable of motor affects problem to what test;
2, existing testing apparatus can not complete the orientation of receiving antenna, pitching, polarization automatic rotation control problem;
3, existing testing apparatus can not realize the test problem of microwave dark room multipath loss.
The present invention adopts functionalization, modular design thinking, abundant reference software and radio technique, wireless method and program-controlled electric machine technology are applied to test macro, and by writing associated control software, solve electromagnetic compatibility problem, propose a kind of microwave dark room test macro based on controlled in wireless and wireless control method.
Technical scheme
Based on a microwave dark room test macro for controlled in wireless, it is characterized in that comprising host computer, transmitting station, emitting antenna, emitting antenna turntable, signal generator, receiving antenna, receiving antenna three axle The Cloud Terrace, receiving antenna scanning support, low noise amplifier and spectrum analyzer; Host computer is connected with signal generator and spectrum analyzer respectively by GPIB, host computer is connected with transmitting station by serial ports, the output terminal of signal generator connects emitting antenna, receiving antenna is by connecting spectrum analyzer after low noise amplifier, emitting antenna is arranged on emitting antenna turntable, receiving antenna is arranged on receiving antenna three axle The Cloud Terrace, and receiving antenna three axle The Cloud Terrace is arranged on receiving antenna scanning support; Described emitting antenna turntable is provided with emitting antenna and receives radio station, and receiving antenna scanning support is provided with receiving antenna scanning support and receives radio station, and receiving antenna three axle The Cloud Terrace is provided with receiving antenna three axle The Cloud Terrace and receives radio station.
To the wireless control method that microwave dark room test macro carries out, it is characterized in that step is as follows:
Step 1: steering order is issued to transmitting station by serial ports by host computer, steering order sends by transmitting station;
Decoded control command code, if decoded steering order is emitting antenna, is the instruction controlling emitting antenna rotary motion by step 2: emitting antenna receives radio station and decodes to steering order;
Receiving antenna scanning support receives radio station and decodes to steering order, if decoded steering order is receiving antenna scanning support, is the instruction controlling receiving antenna scanning support level or vertical movement by decoded control command code;
Receiving antenna three axle The Cloud Terrace receives radio station and decodes to steering order, if decoded steering order is receiving antenna three axle The Cloud Terrace, is the instruction controlling receiving antenna three axle The Cloud Terrace orientation, pitching or polarization motion by decoded control command code.
Beneficial effect
A kind of microwave dark room test macro based on controlled in wireless that the present invention proposes and wireless control method, compared with prior art have following technical characterstic:
1, wireless program-controlled technology is adopted to solve five dimension motion problems of portable antenna;
2, the stationary problem of multipath loss in microwave dark room test is solved;
3, the error problem that the various cable of servomotor is introduced in testing is solved.
Radio set technology introduces microwave dark room test, whole parameters of traditional test can be completed, and can solve the test problem of the insurmountable antenna bearingt of conventional test methodologies, pitching, polarization and multipath loss, system has the feature of integration, portability, low cost simultaneously.
Accompanying drawing explanation
The application system main assembly block diagram of Fig. 1 wireless program-controlled motor of the present invention in microwave dark room test;
Fig. 2 emitting antenna turntable of the present invention controlled in wireless schematic diagram;
Fig. 3 the present invention receives scanning support controlled in wireless schematic diagram;
Three-dimensional cradle head structure schematic diagram in the application of Fig. 4 wireless program-controlled of the present invention motor in microwave dark room test;
Fig. 5 the present invention three axle The Cloud Terrace controlled in wireless schematic diagram.
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Principle of work of the present invention is as follows: host computer is by serial ports 485 and transmitting station communication, serial ports 485 can long distance communication, ensure tester can between the control of microwave dark room or other place away from region, microwave dark room dead zone control testing apparatus, reduce personnel and testing apparatus to the impact of darkroom test result.Host computer and serial ports 485 communication, each spindle motor control information is sent through transmitting station, emitting antenna receives radio station, by demoder, steering order is converted to the instruction of transmitting motor motion control, controls motor movement, emitting antenna is rotated on plane of polarization by scrambler; Three axle The Cloud Terraces receive radio station and also complete corresponding decode procedure simultaneously, and control three motor movements of three axle The Cloud Terraces by scrambler, complete the rotary motion of the orientation of receiving antenna, pitching, polarization; Scanning support is made up of tangential movement test platform and the VTOL (vertical take off and landing) bar be fixed on tangential movement testing jig, and the three axle The Cloud Terraces installing receiving antenna are just fixed on the top of elevating lever, after scanning support receives the decoding of radio station settling signal, coding, tangential movement Electric Machine Control testing jig moves in the horizontal direction, the elevating movement of vertical movement Electric Machine Control elevating lever, thus drive receiving antenna to complete the motion of horizontal direction and vertical direction.And then complete microwave dark room performance test.
Present system composition frame chart is referring to Fig. 1, and system comprises host computer, transmitting station, spectrum analyzer, signal generator, low noise amplifier, emitting antenna, emitting antenna turntable, receiving antenna, receiving antenna three axle The Cloud Terrace, receiving antenna scanning support and emitting antenna elevating lever; Host computer is connected with signal generator and spectrum analyzer respectively by GPIB, host computer is connected with transmitting station by serial ports, the output terminal of signal generator connects emitting antenna, emitting antenna is arranged on emitting antenna turntable, emitting antenna turntable is arranged on emitting antenna elevating lever, and these parts form the transmitting branch of test; Receiving antenna is arranged on receiving antenna three axle The Cloud Terrace, and receiving antenna three axle The Cloud Terrace is arranged on receiving antenna scanning support, and be input to spectrum analyzer after receiving antenna is connected with low noise amplifier, these parts constitute the receiving branch of test; Described emitting antenna turntable is provided with emitting antenna and receives radio station, and receiving antenna scanning support is provided with receiving antenna scanning support and receives radio station, and receiving antenna three axle The Cloud Terrace is provided with receiving antenna three axle The Cloud Terrace and receives radio station.Transmitting station and emitting antenna receive radio station, receiving antenna scanning support receives radio station, antenna three axle The Cloud Terrace receives between radio station and adopts controlled in wireless mode.
Described in each several part of the present invention is composed as follows:
In traditional microwave dark room performance test process, tester and testing apparatus limit due to circuit, can only operate inside microwave dark room, and the control line of servomotor, line of codes etc. are oversize, these lines move together along with mobile device, in test process, often there is line ball phenomenon, cause mobile device normally to work, the carrying out of impact test.Because receiving antenna will move in dead zone, darkroom, there is certain height on general and ground, in order to automatically control the three-axis moving of receiving antenna, if installation servomotor, various control line will bring very large weight, and testing jig is in order to ensure load-bearing safety, that certainly will design is very huge and heavy, this will be unfavorable for installation and the transport of testing apparatus, and huge testing jig will bring great error to test, and test even can be made to lose meaning.In order to make testing apparatus small and exquisite, be convenient to transport, and the impact as far as possible reduced test, we adopt wireless program-controlled method and program control electric system, design three small and exquisite axle The Cloud Terraces, three light and handy program control motors are arranged on The Cloud Terrace, by wireless transmission method, the orientation of receiving antenna, pitching, the automatic control of polarization three axle and the polarized rotation of emitting antenna can be completed and control, and decrease weight and the impact of the various control line of motor.Move horizontally aspect to keep away the various cable of motor to the impact of mobile device, we also adopt wireless method and program-controlled electric machine, so just thoroughly avoid the phenomenon that the mobile device occurred in test process rolls motor cable.The introducing of wireless program-controlled motor, makes test can full automation, and for this reason, after introducing wireless method and program-controlled electric machine first, we compile and develop microwave dark room testing software, make microwave dark room performance test fully achieve robotization.The introducing of wireless program-controlled method and program-controlled electric machine, transmitting station is sent after instruction, and emitting antenna and receiving antenna can be synchronized with the movement, very scabrous multipath loss test problem always in microwave dark room performance test process before solving.
Fig. 1 is test macro connection layout.Institutional framework of the present invention as can be seen from Fig..Host computer controls the mode of motion of each motor by wireless method and program-controlled electric machine, thus completes microwave dark room performance test.
Fig. 2 is emitting antenna turntable controlled in wireless schematic diagram.After emitting antenna reception radio station receives the steering order of host computer, steering order is decoded, if decoded steering order is emitting antenna, be the instruction (comprising rotating speed and sense of rotation) controlling emitting antenna rotary motion by decoded control command code;
Fig. 3 is receiving antenna scanning support controlled in wireless schematic diagram.Scanning support is made up of horizontally moving device and VTOL (vertical take off and landing) bar, and three axle The Cloud Terraces are arranged on VTOL (vertical take off and landing) masthead end, does horizontal and vertical motion together with elevating lever.Move horizontally motor and vertical movement motor is arranged on horizontally moving device, by rotating speed and the sense of rotation of wireless method level of control motor, motor vertical, thus solve the horizontal and vertical motion of receiving antenna.After receiving antenna scanning support reception radio station receives the steering order of host computer, steering order is decoded, if decoded steering order is receiving antenna scanning support, be the instruction controlling receiving antenna scanning support level or vertical movement by decoded control command code;
Fig. 4 is three axle cradle head structure schematic diagram.Receiving antenna is arranged on three axle The Cloud Terraces, The Cloud Terrace has been installed three small and exquisite program control motors, can control the rotation that receiving antenna completes orientation, pitching, polarization.
Fig. 5 is three axle The Cloud Terrace controlled in wireless schematic diagram.After receiving antenna three axle The Cloud Terrace receives the steering order of host computer, steering order is decoded, if decoded steering order is receiving antenna three axle The Cloud Terrace, be the instruction controlling receiving antenna three axle The Cloud Terrace orientation, pitching or polarization motion by decoded control command code.
Claims (2)
1., based on a microwave dark room test macro for controlled in wireless, it is characterized in that comprising host computer, transmitting station, emitting antenna, emitting antenna turntable, signal generator, receiving antenna, receiving antenna three axle The Cloud Terrace, receiving antenna scanning support, low noise amplifier and spectrum analyzer; Host computer is connected with signal generator and spectrum analyzer respectively by GPIB, host computer is connected with transmitting station by serial ports, the output terminal of signal generator connects emitting antenna, receiving antenna is by connecting spectrum analyzer after low noise amplifier, emitting antenna is arranged on emitting antenna turntable, receiving antenna is arranged on receiving antenna three axle The Cloud Terrace, and receiving antenna three axle The Cloud Terrace is arranged on receiving antenna scanning support; Described emitting antenna turntable is provided with emitting antenna and receives radio station, and receiving antenna scanning support is provided with receiving antenna scanning support and receives radio station, and receiving antenna three axle The Cloud Terrace is provided with receiving antenna three axle The Cloud Terrace and receives radio station.
2., to the wireless control method that system according to claim 1 is carried out, it is characterized in that step is as follows:
Step 1: steering order is issued to transmitting station by serial ports by host computer, steering order sends by transmitting station;
Decoded control command code, if decoded steering order is emitting antenna, is the instruction controlling emitting antenna rotary motion by step 2: emitting antenna receives radio station and decodes to steering order;
Receiving antenna scanning support receives radio station and decodes to steering order, if decoded steering order is receiving antenna scanning support, is the instruction controlling receiving antenna scanning support level or vertical movement by decoded control command code;
Receiving antenna three axle The Cloud Terrace receives radio station and decodes to steering order, if decoded steering order is receiving antenna three axle The Cloud Terrace, is the instruction controlling receiving antenna three axle The Cloud Terrace orientation, pitching or polarization motion by decoded control command code.
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| CN201510770635.4A CN105353241A (en) | 2015-11-12 | 2015-11-12 | Microwave darkroom test system based on wireless control and wireless control method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911515A (en) * | 2016-04-01 | 2016-08-31 | 中国电子科技集团公司第三十八研究所 | Reflection surface interferometer test and correction device and method |
| CN106680841A (en) * | 2016-12-31 | 2017-05-17 | 中国人民解放军63653部队 | Method for detecting short message communication performance of Beidou first-generation user machine in external field |
| CN106970363A (en) * | 2017-05-11 | 2017-07-21 | 九江精密测试技术研究所 | A kind of triaxial antennas test table system with low reflection characteristic |
| CN107796995A (en) * | 2017-11-30 | 2018-03-13 | 上海英恒电子有限公司 | Microwave dark room and corresponding Antenna testing system |
| CN109786925A (en) * | 2017-11-10 | 2019-05-21 | 千藏工业株式会社 | Antenna positioner, the system and method for measuring unnecessary electromagnetic radiation |
| CN110672932A (en) * | 2019-11-14 | 2020-01-10 | 中国电子科技集团公司第五十四研究所 | Automatic calibration method for multi-antenna navigation darkroom test signal level |
| CN112098732A (en) * | 2020-09-21 | 2020-12-18 | 深圳市环波科技有限责任公司 | Microwave electromagnetic parameter three-dimensional test system and method thereof |
| CN113848394A (en) * | 2021-09-23 | 2021-12-28 | 南京捷希科技有限公司 | Compact range air interface test equipment |
| CN114113700A (en) * | 2021-11-12 | 2022-03-01 | 中国电子科技集团公司第二十九研究所 | Microwave anechoic chamber direction-finding test device and method supporting multiple antenna polarizations |
| CN116827452A (en) * | 2023-08-30 | 2023-09-29 | 福州物联网开放实验室有限公司 | Internet of things communication terminal antenna debugging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036629A (en) * | 2012-12-19 | 2013-04-10 | 中国舰船研究设计中心 | Anechoic chamber performance measurement system |
| CN103051399A (en) * | 2012-12-19 | 2013-04-17 | 中国舰船研究设计中心 | Microwave anechoic chamber performance measuring method |
| CN204679780U (en) * | 2015-02-17 | 2015-09-30 | 赵华 | Intelligent remote measure and control device and intelligent zonal injection system |
| CN105021902A (en) * | 2015-08-21 | 2015-11-04 | 中国电子科技集团公司第三十八研究所 | Outfield test system applied to far-field pattern of high-frequency antenna and test method |
-
2015
- 2015-11-12 CN CN201510770635.4A patent/CN105353241A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036629A (en) * | 2012-12-19 | 2013-04-10 | 中国舰船研究设计中心 | Anechoic chamber performance measurement system |
| CN103051399A (en) * | 2012-12-19 | 2013-04-17 | 中国舰船研究设计中心 | Microwave anechoic chamber performance measuring method |
| CN204679780U (en) * | 2015-02-17 | 2015-09-30 | 赵华 | Intelligent remote measure and control device and intelligent zonal injection system |
| CN105021902A (en) * | 2015-08-21 | 2015-11-04 | 中国电子科技集团公司第三十八研究所 | Outfield test system applied to far-field pattern of high-frequency antenna and test method |
Non-Patent Citations (1)
| Title |
|---|
| "《中国计量科学研究院年报1994-1995年》" * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911515A (en) * | 2016-04-01 | 2016-08-31 | 中国电子科技集团公司第三十八研究所 | Reflection surface interferometer test and correction device and method |
| CN106680841B (en) * | 2016-12-31 | 2020-06-05 | 中国人民解放军63653部队 | Method for outfield detection of short message communication performance of Beidou I subscriber unit |
| CN106680841A (en) * | 2016-12-31 | 2017-05-17 | 中国人民解放军63653部队 | Method for detecting short message communication performance of Beidou first-generation user machine in external field |
| CN106970363A (en) * | 2017-05-11 | 2017-07-21 | 九江精密测试技术研究所 | A kind of triaxial antennas test table system with low reflection characteristic |
| CN106970363B (en) * | 2017-05-11 | 2023-06-16 | 九江精密测试技术研究所 | Triaxial antenna test turntable system with low reflection characteristic |
| CN109786925A (en) * | 2017-11-10 | 2019-05-21 | 千藏工业株式会社 | Antenna positioner, the system and method for measuring unnecessary electromagnetic radiation |
| CN109786925B (en) * | 2017-11-10 | 2022-08-30 | 千藏工业株式会社 | Antenna positioner, system and method for measuring unnecessary electromagnetic radiation |
| CN107796995A (en) * | 2017-11-30 | 2018-03-13 | 上海英恒电子有限公司 | Microwave dark room and corresponding Antenna testing system |
| CN110672932A (en) * | 2019-11-14 | 2020-01-10 | 中国电子科技集团公司第五十四研究所 | Automatic calibration method for multi-antenna navigation darkroom test signal level |
| CN112098732A (en) * | 2020-09-21 | 2020-12-18 | 深圳市环波科技有限责任公司 | Microwave electromagnetic parameter three-dimensional test system and method thereof |
| CN112098732B (en) * | 2020-09-21 | 2023-07-25 | 深圳市环波科技有限责任公司 | Microwave electromagnetic parameter three-dimensional test system and method thereof |
| CN113848394A (en) * | 2021-09-23 | 2021-12-28 | 南京捷希科技有限公司 | Compact range air interface test equipment |
| CN114113700A (en) * | 2021-11-12 | 2022-03-01 | 中国电子科技集团公司第二十九研究所 | Microwave anechoic chamber direction-finding test device and method supporting multiple antenna polarizations |
| CN114113700B (en) * | 2021-11-12 | 2023-05-09 | 中国电子科技集团公司第二十九研究所 | Device and method for supporting direction-finding test of microwave darkroom with multiple antenna polarizations |
| CN116827452A (en) * | 2023-08-30 | 2023-09-29 | 福州物联网开放实验室有限公司 | Internet of things communication terminal antenna debugging device |
| CN116827452B (en) * | 2023-08-30 | 2023-12-01 | 福州物联网开放实验室有限公司 | Internet of things communication terminal antenna debugging device |
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