CN115754492B - Antenna test system - Google Patents
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- CN115754492B CN115754492B CN202111265831.8A CN202111265831A CN115754492B CN 115754492 B CN115754492 B CN 115754492B CN 202111265831 A CN202111265831 A CN 202111265831A CN 115754492 B CN115754492 B CN 115754492B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
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- G01R29/10—Radiation diagrams of antennas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The antenna test system provided by the application comprises: a darkroom; the first bearing mechanism is arranged in the dark room; the conveying mechanism is arranged outside the dark room and is used for conveying the antenna to be tested to the first bearing mechanism; the plugging mechanism is arranged in the dark room; the testing mechanism is arranged in the dark room and is used for testing the antenna to be tested; the control mechanism is respectively connected with the first bearing mechanism, the conveying mechanism, the plugging mechanism and the testing mechanism, and is used for controlling the conveying mechanism and the testing mechanism, and the control mechanism is also used for controlling the plugging mechanism to be connected with the antenna to be tested when the antenna to be tested is conveyed in place, and disconnecting the connection between the plugging mechanism and the antenna to be tested when the testing mechanism is tested. In the application, the control mechanism automatically connects/disconnects the plug-in mechanism to the antenna to be tested, automation is realized, manual intervention is not needed, and the efficiency is high.
Description
Technical Field
The invention relates to the field of antenna testing, in particular to an antenna testing system.
Background
Currently, 5G has entered a formal commercial stage, and global operators are using large-scale collection base station equipment for 5G network construction. For a 5G base station antenna, the antenna and RRU are integrated together, so that on one hand, interference factors such as electromagnetic coupling, active standing waves and the like cannot be completely eliminated; on the other hand, the calibration and amplitude-phase weighting of the active antenna are completed through the matching of a series of active devices on each radio frequency channel, and the mode of amplitude-phase weighting of the passive antenna array through a passive power division network is quite different. Therefore, for the 5G base station adopting the large-scale MIMO active antenna technology, the integrated OTA test mode can effectively reflect the performance index.
The OTA test must be performed in a darkroom, and for a production line of pipeline operation, in the antenna test process, the antenna to be tested and the test system need to be connected by a manual intervention mode, which results in lower test efficiency.
Disclosure of Invention
The application provides an antenna test system, which at least can solve the technical problem of lower test efficiency of the existing test system.
The application provides an antenna test system, include:
a darkroom;
the first bearing mechanism is arranged in the darkroom;
the transmission mechanism is arranged outside the darkroom and is used for transmitting the antenna to be tested to the first bearing mechanism;
the plugging mechanism is arranged in the darkroom;
the testing mechanism is arranged in the darkroom and is used for testing the antenna to be tested;
the control mechanism is respectively connected with the first bearing mechanism, the conveying mechanism, the plugging mechanism and the testing mechanism, and is used for controlling the conveying mechanism and the testing mechanism, and is also used for controlling the plugging mechanism to connect the antenna to be tested when the antenna to be tested is conveyed in place, and disconnecting the connection between the plugging mechanism and the antenna to be tested when the testing mechanism tests.
In one possible implementation manner, the antenna to be tested further comprises a second bearing mechanism, wherein the second bearing mechanism bears the antenna to be tested;
the conveying mechanism is used for conveying the second bearing mechanism to the first bearing mechanism;
the first plugging module is connected with the first bearing mechanism, the second plugging module is connected with the second bearing mechanism, and the second plugging module is connected with the antenna to be tested;
the control mechanism is connected with the first plug-in module, and is used for controlling the first plug-in module to be connected with the second plug-in module when the second bearing mechanism is transmitted in place, and disconnecting the connection between the first plug-in module and the second plug-in module when the test of the test mechanism is finished.
In one possible implementation manner, the first bearing mechanism comprises a displacement module and a lifting module, the lifting module is connected with the displacement module, and the first plug-in module is connected with the displacement module;
the conveying mechanism is used for conveying the second bearing mechanism to the displacement module;
the control mechanism is connected with the lifting module, and is used for controlling the lifting module to ascend when the second bearing mechanism is conveyed in place so that the first plugging module is connected with the second plugging module, and is also used for controlling the lifting module to descend when the test of the test mechanism is finished so that the first plugging module and the second plugging module are disconnected.
In one possible implementation, the lifting module comprises a lifting cylinder connected to the displacement module and to the control mechanism, respectively.
In one possible implementation manner, the first bearing mechanism further comprises a first limiting module, and the first limiting module is connected with the displacement module;
the control mechanism is connected with the first limit module, and is used for controlling the first limit module to be connected with the second load-bearing mechanism when the second load-bearing mechanism is conveyed in place, so that the first limit module applies force in a target direction to the second load-bearing mechanism, and the target direction is opposite to the rising direction of the lifting module.
In one possible implementation manner, the second bearing mechanism comprises a tray, the tray is provided with a groove, and the tray bears the antenna to be tested;
the first limiting module comprises a positioning block and a rotating piece, a first end of the rotating piece is connected with the displacement module, and a second end of the rotating piece is connected with the positioning block;
the control mechanism is connected with the rotating piece and is used for controlling the rotating piece to rotate and driving the positioning block to rotate, so that the positioning block is clamped to the groove and applies force in a target direction to the tray.
In one possible implementation manner, the first limiting module further comprises a first telescopic member, the first telescopic member is connected with the displacement module and the rotating member respectively, and the first telescopic member is used for driving the rotating member to translate;
the control mechanism is connected with the first telescopic piece and used for controlling the first telescopic piece to stretch and retract and driving the rotating piece to translate.
In one possible implementation manner, the first bearing mechanism further comprises a second limiting module, wherein the second limiting module comprises a second telescopic piece and a baffle, and the second telescopic piece is respectively connected with the displacement module and the baffle;
the control mechanism is connected with the second telescopic piece and is used for controlling the second telescopic piece to stretch and retract and drive the baffle plate to translate, so that the baffle plate is connected with the second bearing mechanism and applies force in the horizontal direction to the second bearing mechanism.
In one possible implementation manner, the displacement module includes a first displacement assembly, a second displacement assembly and a third displacement assembly, the first displacement assembly is connected with the darkroom and the second displacement assembly respectively, the second displacement assembly is connected with the third displacement assembly, and the third displacement assembly is connected with the second bearing mechanism;
The control mechanism is respectively connected with the first displacement assembly, the second displacement assembly and the third displacement assembly, and is used for controlling the first displacement assembly to translate along a first displacement track, controlling the second displacement assembly to translate along a second displacement track and controlling the third displacement assembly to translate along a third displacement track, wherein the first displacement track, the second displacement track and the third displacement track are perpendicular to each other.
In one possible implementation manner, the test mechanism includes a support frame, a first test frame, a second test frame, a rotating assembly and a test assembly, the support frame is connected with the darkroom, the first test frame is connected with the support frame, the second test frame is connected with the first test frame, the rotating assembly is connected with the second test frame, and the test assembly is connected with the rotating assembly;
the control mechanism is respectively connected with the first test frame, the second test frame, the rotating assembly and the test assembly, the control mechanism is used for controlling the first test frame to translate along a first horizontal track, controlling the second test frame to translate along a second horizontal track, controlling the rotating assembly to rotate and driving the test assembly to rotate, controlling the test assembly to test the antenna to be tested, and the first horizontal track is perpendicular to the second horizontal track.
In the application, the control mechanism automatically connects/disconnects the plug-in mechanism to-be-tested antenna, automation is realized, manual intervention is not needed, the efficiency is high, and the technical problem of lower testing efficiency of the existing testing system can be solved. The method and the device can realize flow automation, simplify the test flow and improve the test efficiency on the premise of ensuring the test precision.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram illustrating the positional relationship of a darkroom and a transfer mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 2 is a schematic diagram of an automatic feed shield door in an antenna test system according to an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a connection relationship among a darkroom, a first carrying mechanism and a second carrying mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating a connection relationship between a first carrier mechanism and a second carrier mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 5 is a schematic diagram of a first carrying mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 6 is a schematic diagram illustrating a configuration of a first displacement assembly in an antenna testing system according to an exemplary embodiment;
FIG. 7 is a schematic diagram illustrating a connection structure of a second displacement assembly and a third displacement assembly in an antenna test system according to an exemplary embodiment;
fig. 8 is a schematic diagram of a tray in a top view of an antenna testing system according to an exemplary embodiment;
fig. 9 is a schematic diagram of a tray in a bottom view in an antenna testing system according to an exemplary embodiment;
FIG. 10 is a schematic diagram illustrating a connection structure of a third displacement assembly, a first limit module, and a second limit module in an antenna test system according to an exemplary embodiment;
FIG. 11 is a schematic diagram illustrating a connection structure between a third displacement assembly and a first limit module in an antenna testing system according to an exemplary embodiment;
FIG. 12 is a schematic diagram illustrating a connection structure of a third displacement assembly, a first limit module, and a lifting module in an antenna test system according to an exemplary embodiment; a step of
FIG. 13 is a schematic diagram of a test mechanism in an antenna test system according to an exemplary embodiment;
fig. 14 is a schematic diagram illustrating a positional relationship between a testing mechanism and a first carrying mechanism in an antenna testing system according to an exemplary embodiment.
Detailed Description
Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
In addition, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits have not been described in detail as not to unnecessarily obscure the present application.
The application provides an antenna test system, which at least can solve the technical problem of lower test efficiency of the existing test system.
Referring to fig. 1 to 14, an embodiment of the present disclosure provides an antenna test system, including:
a darkroom 1;
the first bearing mechanism 2 is arranged in the darkroom 1;
the conveying mechanism 3 is arranged outside the darkroom 1, and the conveying mechanism 3 is used for conveying the antenna to be tested to the first bearing mechanism 2;
the plugging mechanism is arranged in the darkroom 1;
the testing mechanism 5 is arranged in the darkroom 1, and the testing mechanism 5 is used for testing the antenna to be tested;
the control mechanism is respectively connected with the first bearing mechanism 2, the conveying mechanism 3, the plugging mechanism and the testing mechanism 5, and is used for controlling the conveying mechanism 3 and the testing mechanism 5, and the control mechanism is also used for controlling the plugging mechanism to be connected with the antenna to be tested when the antenna to be tested is conveyed in place, and disconnecting the connection between the plugging mechanism and the antenna to be tested when the testing mechanism 5 is tested.
In the embodiment of the present disclosure, the anechoic chamber 1 may be an anechoic chamber 1, and the anechoic chamber 1 is an environment necessary for an Over-the-Air Technology (OTA) test, and the anechoic chamber 1 includes a shielding body 15 and a wave absorber 16. The wave absorber 16 may be a wedge-shaped wave absorbing material. An automatic feed shield door 10 is provided on one side of the shield 15. The transfer mechanism 3 may be disposed opposite the automatic feed shield door 10. The photoelectric switch is arranged outside the automatic feeding shielding door 10, and when the photoelectric switch senses that the conveying mechanism 3 conveys the antenna to be tested to the door opening of the automatic feeding shielding door 10, the shielding door 10 can be automatically opened.
When the conveying mechanism 3 conveys the antenna to be tested, the conveying mechanism 3 is arranged opposite to the first bearing mechanism 2. When the shielding door 10 is opened, the transfer mechanism 3 can transfer the antenna to be tested to the first carrying mechanism 2. The conveying mechanism 3 may be a belt conveying device or a drum conveying device. The first bearing mechanism 2 is arranged in the darkroom 1 and can bear the antenna to be tested, and the first bearing mechanism 2 can move in the darkroom 1, so that the position of the antenna to be tested is adjusted, and the antenna to be tested can be tested at each position. The transfer mechanism 3 is a device for transferring the antenna to be tested to a specified test position. The conveying mechanism 3 can be provided with an automatic guiding system, so that the system can automatically run along a preset route without manual navigation, and the antenna to be tested can be automatically conveyed to a destination from a starting point. The conveying mechanism 3 in the embodiment of the present specification adopts a roller backpack, and the roller has the same height as the shielding door 10 of the anechoic chamber 1.
The antenna to be measured being transferred in place may mean that the antenna to be measured is transferred to the antenna mounting area in the first carrier 2. The plugging mechanism can be connected with the antenna to be tested when the antenna to be tested is transferred in place, and electric signals are transmitted between the antenna to be tested and the control mechanism, wherein the electric signals can be signals for controlling the antenna emission parameters, and the antenna emission parameters can be the phase, the amplitude and the like of the antenna emission signals. The signal sent by the control mechanism to the antenna to be tested through the plugging mechanism comprises a radio frequency signal, an optical signal, a strong and weak electric signal and the like of the antenna to be tested. The connection mechanism can be disconnected from the antenna at the end of the test by the test mechanism 5, so that the first carrying mechanism 2 can conveniently convey the antenna to the conveying mechanism 3, and the antenna is conveyed out of the darkroom 1.
The testing mechanism 5 can send signals to the antenna to be tested and can also receive signals sent by the antenna to be tested, so that signal interaction is carried out with the antenna to be tested, and the performance of the antenna to be tested is tested.
The control mechanism is respectively connected with the first bearing mechanism 2, the conveying mechanism 3, the plugging mechanism and the testing mechanism 5, and is used for controlling the conveying mechanism 3 to convey the antenna to be tested to the first bearing mechanism 2, controlling the plugging mechanism to be connected with the antenna to be tested when the antenna to be tested is conveyed in place, controlling the testing mechanism 5 to test when the plugging mechanism is connected with the antenna to be tested, controlling the plugging mechanism to disconnect the connection between the plugging mechanism and the antenna to be tested when the test is finished, and controlling the conveying mechanism 3 to convey the antenna to be tested to the outside of the darkroom 1 when the test is finished.
In the prior art, when the antenna to be tested is transferred in place, the plugging mechanism needs to be manually connected with the antenna to be tested, and the efficiency is low.
In the embodiment of the specification, the control mechanism automatically connects/disconnects the plug-in mechanism to the antenna to be tested, so that automation is realized, manual intervention is not needed, the efficiency is high, and the technical problem of lower testing efficiency of the existing testing system can be solved. According to the embodiment of the specification, the flow automation can be realized, the test flow is simplified on the premise of ensuring the test precision, the test efficiency is improved, and the occupied space is reduced.
In one possible implementation, the automatic feeding shielding door 10 may be a single door, and correspondingly, the antenna to be tested may be transferred into the darkroom 1 or transferred out of the darkroom 1 through the automatic feeding shielding door 10 in a single door and single door mode. The number of the automatic feeding shielding doors 10 can be two, correspondingly, a through type access mode can be adopted, the antenna to be tested is conveyed into the darkroom 1 through one automatic feeding shielding door, and the antenna is conveyed out of the darkroom 1 through the other automatic feeding shielding door.
The shielding door 10 is of a lifting structure and consists of a door plate 11 and driving mechanisms 12 on the left side and the right side, wherein the driving mechanisms 12 are distributed on the left side and the right side of the door body and are symmetrically arranged. The driving mechanism 12 drives the door plate 11 to move up and down, and can also drive the door plate 11 to move back and forth at the lower limit position, and continuously gives the door plate 11 an attaching force to the door frame in the state that the door is closed, so that the shielding and sealing functions are achieved. The driving mechanism 12 consists of a driving cylinder 151, a traction plate 141, a guide plate 131 and a concentric shaft group, wherein the concentric shaft group is fixed on the door plate 11, a section of the shaft is provided with a roller, and a section of the shaft is provided with a copper sleeve. The rollers slide in the guide grooves of the guide plate 131, and the copper bush slides in the slide grooves of the traction plate 141. The driving cylinder 151 drives the traction plate 141 to move up and down, the traction plate 141 is provided with a 45-degree sliding groove, the concentric shaft is assembled in the sliding groove, and the component force in the horizontal and vertical directions can be simultaneously given to the concentric shaft group when the traction plate 141 moves up and down. The guide grooves of the guide plate 131 control the direction of door movement. The movement of the driving cylinder 151 is controlled by a solenoid valve, and the door panel 11 may be immediately stopped when the solenoid valve is suddenly de-energized. The shielding body 15 is also provided with a maintenance shielding door 14 on the other surface, which is convenient for personnel to enter and exit for maintenance. The wave-absorbing material is disposed on six sides inside the shielding body 15, and the influence of multipath effects on the test result due to signal reflection of the inner wall can be reduced. The anechoic chamber 1 further has basic lighting, video monitoring, temperature and humidity monitoring and smoke detection alarm functions, and testing safety is guaranteed.
In one possible implementation manner, the antenna to be tested is further comprised of a second bearing mechanism 6, and the second bearing mechanism 6 bears the antenna to be tested;
the conveying mechanism 3 is used for conveying the second bearing mechanism 6 to the first bearing mechanism 2;
the plugging mechanism comprises a first plugging module 41 and a second plugging module 42, the first plugging module 41 is connected with the first bearing mechanism 2, the second plugging module 42 is connected with the second bearing mechanism 6, and the second plugging module 42 is connected with the antenna to be tested;
the control mechanism is connected with the first plug-in module 41, and the control mechanism is used for controlling the first plug-in module 41 to be connected with the second plug-in module 42 when the second bearing mechanism 6 is transferred into place, and disconnecting the connection between the first plug-in module 41 and the second plug-in module 42 when the test of the test mechanism 5 is finished.
In the embodiment of the present disclosure, the second carrying mechanism 6 is detachably connected to the first carrying mechanism 2, the antenna to be tested may be mounted on the second carrying mechanism 6, the second carrying mechanism 6 may be placed on the conveying mechanism 3, and the conveying mechanism 3 may convey the antenna to be tested by conveying the second carrying mechanism 6. The antenna to be tested is mounted on the second bearing mechanism 6, and then the second bearing mechanism 6 is conveyed, and the second bearing mechanism 6 can serve as a carrier of the antenna to be tested, so that the conveying mechanism 3 can convey the antenna to be tested conveniently; and the position of the antenna to be measured in the darkroom 1 can be conveniently adjusted later.
In the embodiment of the present disclosure, an operator may mount the antenna to be tested to the second carrying mechanism 6, and connect the antenna to be tested to the second socket module 42 through a signal line. The first plugging module 41 and the second plugging module 42 are detachably connected, when the second bearing mechanism 6 is transferred in place, the control mechanism controls the first plugging module 41 to be connected with the second plugging module 42, and the electric connection lines among the antenna to be tested, the second plugging module 42, the first plugging module 41 and the control mechanism are connected, so that the control mechanism can send electric signals to the antenna to be tested to perform antenna test. When the test of the test mechanism 5 is finished, the control mechanism can control the first plugging module 41 to be separated from the second plugging module 42, disconnect the connection between the first plugging module 41 and the second plugging module 42, and avoid the influence of the signal wire on the transmission mechanism 3 to transmit the second bearing mechanism 6 to the outside of the darkroom 1. In the embodiment of the present disclosure, the first connector module 41 is connected to the second connector module 42, so that the connection between the antenna to be tested and the control mechanism can be realized, and the control mode is simple and the operation is convenient.
In one possible implementation, the first carrying mechanism 2 includes a displacement module and a lifting module 29, the lifting module 29 is connected with the displacement module, and the first plugging module 41 is connected with the displacement module;
The conveying mechanism 3 is used for conveying the second bearing mechanism 6 to the displacement module;
the control mechanism is connected with the lifting module 29, and is used for controlling the lifting module 29 to ascend when the second bearing mechanism 6 is transferred in place so that the first plugging module 41 is connected with the second plugging module 42, and is also used for controlling the lifting module 29 to descend when the test of the test mechanism 5 is finished so that the first plugging module 41 is disconnected with the second plugging module 42.
In the present embodiment, the second carrying means 6 may be placed on the displacement module. When the second carrying mechanism 6 is transferred in place, the control mechanism can control the lifting module 29 to lift, and since the lifting module 29 is connected with the displacement module, the lifting module 29 can drive the displacement module to lift, so that the first plugging module 41 on the displacement module lifts and is connected to the second plugging module 42. The control mechanism may also control the lifting module 29 to descend when the test of the test mechanism 5 is finished, and the lifting module 29 may drive the displacement module to descend, so that the first connector module 41 descends and is disconnected from the second connector module 42. The embodiment of the specification has simple structure and is easy to control.
In one possible implementation, the lifting module 29 comprises a lifting cylinder connected to the displacement module and to the control mechanism, respectively.
The lifting module 29 in the embodiment of the present disclosure may be implemented by a lifting cylinder, and the control mechanism may control the lifting cylinder to extend upward to push the displacement module upward, so that the second connector module 42 on the displacement module is lifted and connected to the first connector module 41. The control mechanism can control the jacking cylinder to shrink downwards, after the upward jacking force of the jacking cylinder is lost, the displacement module can automatically fall back, so that the second plug-in module 42 on the displacement module is disconnected with the first plug-in module 41, and the lifting module 29 in the embodiment of the specification has a simple structure and low cost.
In one possible implementation, the first carrying mechanism 2 further includes a first limiting module 231, and the first limiting module 231 is connected with the displacement module;
the control mechanism is connected with the first limit module 231, and the control mechanism is used for controlling the first limit module 231 to be connected with the second load bearing mechanism 6 when the second load bearing mechanism 6 is conveyed in place, so that the first limit module 231 applies a force in a target direction to the second load bearing mechanism 6, and the target direction is opposite to the rising direction of the lifting module 29.
In the embodiment of the present disclosure, when the second carrying mechanism 6 is transferred in place, the control mechanism may control the first limiting module 231 to connect with the second carrying mechanism 6, because the first limiting module 231 is connected with the displacement module, and thus, the second carrying mechanism 6 may be limited to the displacement module by the first limiting module 231. When the jacking cylinder stretches upwards, the displacement module can be driven to ascend, so that the second plug-in module 42 on the displacement module ascends; in this embodiment of the present disclosure, the first limiting module 231 applies a force in a downward direction to the second bearing mechanism 6, so that the second bearing mechanism 6 can be limited, the second bearing mechanism 6 is prevented from being lifted, the situation that the first connector module 41 cannot be connected with the second connector module 42 is avoided, and the connector effect of the connector mechanism can be ensured.
Preferably, the first limiting module 231 is disposed at an end of the displacement module near the first connector module 41 in the embodiment of the present disclosure.
In one possible implementation, the second carrying mechanism 6 includes a tray 61, the tray 61 is provided with a groove, and the tray 61 carries the antenna to be tested;
the first limiting module 231 comprises a positioning block 2311 and a rotating piece 2312, a first end of the rotating piece 2312 is connected with the displacement module, and a second end of the rotating piece 2312 is connected with the positioning block 2311;
the control mechanism is connected to the rotating member 2312, and the control mechanism is used for controlling the rotating member 2312 to rotate and driving the positioning block 2311 to rotate, so that the positioning block 2311 is clamped to the groove and applies a force in a target direction to the tray 61.
In the embodiment of the present disclosure, the conveying mechanism 3 may convey the antenna to be tested by conveying the tray 61, and the groove of the tray 61 may be clamped by the positioning block 2311 of the first limiting module 231. The rotating member 2312 may be rod-shaped, and the control mechanism may control the rotating member 2312 to rotate and drive the positioning block 2311 to rotate. When the transfer mechanism 3 transfers the tray 61 to the displacement module, the control mechanism may control the rotation member 2312 to rotate to a horizontal position where the positioning block 2311 is positioned below the tray 61, so that the positioning block 2311 can be prevented from blocking the transfer process of the tray 61. When the tray 61 is transferred in place, the control mechanism can control the rotating piece 2312 to rotate to a vertical position, and when the tray 61 is in the vertical position, the positioning piece 2311 is clamped in the groove of the tray 61, the bottom of the positioning piece 2311 can be abutted against the upper surface of the groove, and the positioning piece 2311 can apply downward force to the tray 61, so that the limiting function of the first limiting module 231 is realized. The tray 61 is used for rotating the antenna to be tested, and is used as a general component, and has the characteristics of strong compatibility, stable structure and the like.
The tray 61 is provided with a supporting block 62, a heat dissipation hole 65 and a clamping block 63, the antenna to be tested can be placed on the supporting block 62 of the tray 61, the heat dissipation hole 65 is positioned below the antenna to be tested, and the heat dissipation hole 65 is beneficial to heat dissipation of the antenna to be tested. The clamping block 63 can be clamped around the antenna to be tested, so that the antenna to be tested is limited to the tray 61. The clamping block 63 may be fixed or adjustable, the adjustable clamping block 63 is provided with a hand wheel 64, and an operator can rotate the hand wheel 64 to adjust the distance between the clamping block 63 and the antenna to be tested.
In one possible implementation, the first limiting module 231 further includes a first telescopic member 2313, where the first telescopic member 2313 is connected to the displacement module and the rotating member 2312, and the first telescopic member 2313 is used to drive the rotating member 2312 to translate;
the control mechanism is connected to the first telescopic member 2313, and the control mechanism is used for controlling the first telescopic member 2313 to stretch and drive the rotating member 2312 to translate.
In this embodiment, the first telescopic member 2313 may be a telescopic cylinder, the first telescopic member 2313 may be telescopic along the conveying direction of the conveying mechanism 3, and the first telescopic member 2313 may be matched with the rotating member 2312 to clamp the positioning block 2311 in the groove. When the conveying mechanism 3 conveys the tray 61 to the displacement module, the control mechanism can control the first telescopic member 2313 to extend away from the displacement module, and then control the rotating member 2312 to rotate to a horizontal position, and when the positioning block 2311 is positioned below the tray 61 in the horizontal position, the positioning block 2311 can be prevented from blocking the tray 61 to move into the darkroom 1. When the tray 61 is transferred in place, the control mechanism can control the rotating piece 2312 to rotate to a vertical position, and then control the first telescopic piece 2313 to shrink towards the direction close to the displacement module, so that the positioning piece 2311 is clamped in the groove of the tray 61, the bottom of the positioning piece 2311 can be abutted against the upper surface of the groove, and the positioning piece 2311 can apply downward force to the tray 61, so that the limiting function of the first limiting module 231 is realized. At the end of the test, the control mechanism can control the first telescopic member 2313 to extend away from the displacement module, and then control the rotating member 2312 to rotate to the horizontal position, so as to prevent the positioning block 2311 from blocking the tray 61 from moving outside the darkroom 1.
In a possible implementation manner, the first carrying mechanism 2 further comprises a second limiting module, the second limiting module comprises a second telescopic piece 232 and a baffle 233, and the second telescopic piece 232 is respectively connected with the displacement module and the baffle 233;
the control mechanism is connected with the second telescopic member 232, and is used for controlling the second telescopic member 232 to stretch and retract and driving the baffle 233 to translate, so that the baffle 233 is connected with the second bearing mechanism 6 and applies a force in the horizontal direction to the second bearing mechanism 6.
In this embodiment of the present disclosure, when the tray 61 is transferred in place, the control mechanism may control the second limiting module to apply a force in a horizontal direction to the tray 61, so as to further limit the tray 61, and avoid the tray 61 from shifting to affect the antenna test.
The third displacement assembly 23 is provided with a first edge 236 and a second edge 234 that illustrate the tray 61 being transferred into position when one end of the tray 61 abuts the first edge 236. The second telescopic piece 232 in the second limiting module can stretch and drive the baffle 233 to translate, so that the baffle 233 is propped against the tray 61, the tray 61 is propped against the second edge 234, the position of the tray 61 is finely adjusted, the tray 61 is clamped between the baffle 233 and the second edge 234, the tray 61 is further limited, and the influence of the shift of the tray 61 on the antenna test is avoided.
In one possible implementation, the displacement module comprises a first displacement assembly 21, a second displacement assembly 22 and a third displacement assembly 23, the first displacement assembly 21 is connected with the darkroom 1 and the second displacement assembly 22 respectively, the second displacement assembly 22 is connected with the third displacement assembly 23, and the third displacement assembly 23 is connected with the second bearing mechanism 6;
the control mechanism is respectively connected with the first displacement assembly 21, the second displacement assembly 22 and the third displacement assembly 23, and is used for controlling the first displacement assembly 21 to translate along a first displacement track, controlling the second displacement assembly 22 to translate along a second displacement track and controlling the third displacement assembly 23 to translate along a third displacement track, wherein the first displacement track, the second displacement track and the third displacement track are perpendicular in pairs.
In the embodiment of the present disclosure, the displacement module may move in the darkroom 1 to adjust the position of the antenna to be tested, so that different positional relationships are formed between the antenna to be tested and the testing mechanism 5, and the performance of the antenna is tested more comprehensively. The first displacement trajectory may be a vertical direction trajectory, the second displacement trajectory may be a horizontal direction trajectory perpendicular to the conveying direction of the conveying mechanism 3, and the third displacement trajectory may be a horizontal direction trajectory parallel to the conveying direction of the conveying mechanism 3.
In this embodiment of the present disclosure, the displacement module may be installed in a lower space of the anechoic chamber 1, and the displacement module may move on the first displacement track, the second displacement track, and the third displacement track. The displacement module can be used for conveying the antenna to be tested to the feeding door of the anechoic chamber 1 for connecting the antenna to be tested, and is also used for moving the antenna to be tested to a specified test position in the anechoic chamber 1.
The first displacement assembly 21 is a lifting structure and is used for changing the test distance from the antenna to be tested to the test mechanism 5, the first displacement assembly 21 comprises a base 218, a first bottom plate, 4 ball screws 213, 2 guide shafts 214, 4 lifters 217, a first guide rail 211, a first motor 215, a first speed reducer 216 and a first sliding block 212, and the base 218 is installed on the bottom surface of the darkroom 1. The two first guide rails 211 are respectively arranged at two sides of the first bottom plate, and the first motor 215, the first speed reducer 216, the ball screw 213 and the guide shaft 214 are all connected with the first bottom plate. After the first motor 215 is decelerated by the first speed reducer 216, power is respectively transmitted to 4 lifters 217 through transmission shafts, nut pairs are arranged in the lifters 217, and the lifters 217 are matched with the ball screws 213 to realize synchronous lifting actions of the first guide rails 211 on two sides. The first slider 212 is slidably disposed on the first rail 211. The control mechanism is connected with the first motor 215, and the control mechanism controls the first guide rail 211 to lift along the ball screw 213 by controlling the first motor 215. The arrangement direction of the ball screw 213 is the first displacement track direction.
The second displacement assembly 22 comprises a second bottom plate, second guide rails 221, second sliding blocks 222, a second screw nut pair, a motor and a second speed reducer, wherein a driving device formed by the second motor, the second speed reducer and the second screw nut pair is arranged on the first bottom plate of the first displacement assembly 21, the two second guide rails 221 are in cross connection with the two first guide rails, and the setting direction of the second guide rails 221 is perpendicular to the setting direction of the first guide rails. The second slider 222 is slidably disposed on the second rail 221. The bottom of the second rail 221 is connected with the first slider of the first displacement assembly 21, whereby the second rail 221 is slidable on the first rail. The control mechanism is coupled to the second motor and controls the movement of the second displacement assembly 22 on the first rail by controlling the second motor. The setting direction of the first guide rail is the second displacement track direction.
The third displacement assembly 23 includes a third bottom plate 230, a third screw nut pair, a third motor, a third speed reducer, and a roller assembly 237, and a driving device formed by the third screw nut pair, the third motor, and the third speed reducer is mounted on the second bottom plate of the second displacement assembly 22. The third motor and the third speed reducer drive the screw rod to rotate and drive the third displacement assembly 23 to move. The third bottom plate 230 is mounted on the second slider 222 of the second displacement assembly 22, whereby the third bottom plate 230 is slidable on the second rail 221 of the second displacement assembly 22. The control mechanism is connected with the third motor, and controls the third displacement assembly 23 to move on the second guide rail 221 by controlling the third motor. The setting direction of the second guide rail 221 is the third displacement trajectory direction. The third bottom plate 230 of the third displacement assembly 23 is further provided with a roller assembly 237, and the roller assembly 237 may be provided with 2 power rollers and 3 driven rollers for feeding in and feeding out the tray 61. The roller assembly 237 may receive the tray 61 conveyed by the conveyor 3, or may convey the tray 61 to the conveyor 3. The lifting module 29 may be connected to the third base plate 230, the lifting module 29 may be a lifting cylinder, and the control mechanism may control lifting of the drum assembly 237 by the lifting cylinder to connect or disconnect the connection between the first and second connector modules 41 and 42.
In the embodiment of the present disclosure, the first connector module 41 is mounted on the third bottom plate 230 of the third displacement assembly 23, the jacking cylinder is mounted on the bottom of the third bottom plate 230 of the third displacement assembly 23, the second connector module 42 is mounted on the tray 61, the third bottom plate 230 can be jacked up by the movement of the cylinder, so that the first connector module 41 is connected to the second connector module 42, and the third bottom plate 230 can be driven to descend by the movement of the cylinder, so that the first connector module 41 is pulled out from the second connector module 42.
In one possible implementation, the test mechanism 5 includes a support 50, a first test rack 51, a second test rack 52, a rotating assembly, and a test assembly 70, the support 50 being connected to the darkroom 1, the first test rack 51 being connected to the support 50, the second test rack 52 being connected to the first test rack 51, the rotating assembly being connected to the second test rack 52, the test assembly 70 being connected to the rotating assembly;
the control mechanism is respectively connected with the first test frame 51, the second test frame 52, the rotating assembly and the test assembly 70, and is used for controlling the first test frame 51 to translate along a first horizontal track, controlling the second test frame 52 to translate along a second horizontal track, controlling the rotating assembly to rotate and driving the test assembly 70 to rotate, and controlling the test assembly 70 to test the antenna to be tested, wherein the first horizontal track is perpendicular to the second horizontal track.
In the embodiment of the present disclosure, the support 50 is connected with the darkroom 1, the support 50 plays a supporting role, and the first test rack 51 and the second test rack 52 can move in the darkroom 1 to adjust the position of the test component 70, so that different positional relationships are formed between the antenna to be tested and the test mechanism 5, and the performance of the antenna is tested more comprehensively. The first horizontal track and the second horizontal track are tracks in the horizontal direction. The support frame 50 is provided with a first test guide rail, the direction of which is a first horizontal track, and the first test frame 51 is slidably arranged on the first test guide rail. The first test frame 51 is provided with a second test rail, the direction of which is a second horizontal track, and the second test frame 52 is slidably disposed on the second test rail.
In the embodiment of the present specification, the test mechanism 5 is mounted in the top space of the anechoic chamber 1. The control mechanism may control the translation of the first test rack 51 along a first horizontal path and the translation of the second test rack 52 along a second horizontal path, thereby allowing any directional movement of the test assembly 70 in a horizontal plane. The test assembly 70 is mounted on a rotating assembly through which control of any angular pitch is achieved. The test assembly 70 is 1 dual polarized antenna corresponding to the polarization direction of the antenna under test. The dual polarized antenna is fixed on an antenna mounting plate which is fixed on a rotating assembly.
In this embodiment of the present disclosure, the control mechanism may control and acquire the states of the anechoic chamber 1, the conveying mechanism 3, the testing mechanism 5, the first bearing mechanism 2 and the second bearing mechanism 6, where the control mechanism includes a main control module, a driving module, a strong current module, and a weak current module. The electrical component is arranged inside the anechoic chamber 1 and is communicated with a test cabinet outside the anechoic chamber 1 through a power supply and a signal filter. The test cabinet is arranged outside the darkroom 1 and is an independent standard cabinet, and comprises a switch system, a measuring instrument, an indoor baseband processing unit (BBU) and a programmable power supply. The switch system mainly realizes the switching of the radio frequency channel, the input end is connected to the measuring probe port of the anechoic chamber 1, and the output end is connected to each measuring instrument, so that the high-efficiency test is realized. The measuring instrument is a common signal source, a frequency spectrograph and a power meter, and realizes the test and data analysis of uplink and downlink signals of the antenna to be tested. The indoor baseband processing unit realizes the control of the antenna to be tested. The programmable power supply realizes power supply to the antenna to be tested, and power-on and power-off control and monitoring.
The electromagnetic environment monitoring system collects signal power in a certain distance through a monitoring probe, the monitoring probe is generally installed on a wall or a top plate near the anechoic chamber 1, then after a test signal in the anechoic chamber 1 leaks to the outside to reach a certain critical value in a threshold value setting mode, a system alarm is carried out, and the test safety is confirmed. And meanwhile, the external electromagnetic environment signals are collected, whether the excessive radiation level exists or not is monitored, and the personal safety of staff on the production line is ensured.
The 5G base station adopts a MIMO antenna design, and the number of vibrators is 64 or more. In the research and development stage, all vibrators are usually operated together, so that for the darkroom 1, the tested aperture surface is large, and the far field distance is required to be large (2D 2 /lambda). Therefore, in-production line testing can be simplified to only test single vibrators or small group vibrators, and the requirement on far-field distance is lower. In single vibrator or group vibration test, the measuring probe needs to be moved above the phase center, so that the combined movement of the first bearing mechanism 2 and the testing mechanism 5 can be utilizedTo complete the test of all single vibrators or all group vibrators in a relatively small darkroom 1 space, the test items are typically amplitude phase calibration and the like.
The following describes a test method of the antenna test system provided in the embodiment of the present specification.
The operator can mount the antenna to be tested on the tray 61 of the second carrying mechanism 6 and place the tray 61 on the conveying mechanism 3. The control mechanism can control the conveying mechanism 3 to convey the tray 61 into the darkroom 1, a photoelectric switch is arranged outside the automatic feeding shielding door 10 of the darkroom 1, and when the photoelectric switch senses that the conveying mechanism 3 conveys the tray 61 to a door opening of the automatic feeding shielding door 10, the shielding door 10 can be automatically opened. The displacement module of the first carrying mechanism 2 can receive and carry the tray 61 conveyed by the conveying mechanism 3, the tray 61 can be conveyed onto the third displacement assembly 23 of the displacement module, and when one end of the tray 61 abuts against the first edge 236 of the third displacement assembly 23, the tray 61 is conveyed into place. Whether the tray 61 is transferred in place can be detected by a photoelectric sensor, which can be connected to the control mechanism and the third displacement assembly 23. When transferred in place, the control mechanism may control the automatic feed shield door 10 to close. Further, the control mechanism may control the second limiting module to horizontally limit the tray 61, control the first limiting module 231 to vertically limit the tray 61, and control the lifting module 29 to lift the third displacement assembly 23, so that the first connector module 41 on the third displacement assembly 23 is connected to the second connector module 42 on the tray 61. Further, the control mechanism can control the first displacement assembly 21 to move along the first displacement track, control the second displacement assembly 22 to move along the second displacement track, and control the third displacement assembly 23 to move along the third displacement track, so as to adjust the position of the antenna to be measured on the third displacement assembly 23. In addition, the control mechanism can also control the first test frame 51 to move on a first horizontal track and control the second test frame 52 to move on a second horizontal track, so as to adjust the horizontal position of the test assembly 70; the control mechanism may also control rotation of the rotating assembly to adjust the pitch angle of the test assembly 70. The control mechanism controls the antenna under test and the test assembly 70 for signal interaction during testing.
After the test is finished, the control mechanism can control the third displacement assembly 23, the second displacement assembly 22 and the first displacement assembly 21 to align the position of the tray 61 with the automatic feeding shielding door 10, and after the automatic feeding shielding door 10 is opened, the third displacement assembly 23 can transmit the tray 61 to the transmission mechanism 3 through the roller assembly 237 to transmit the antenna to be tested to the outside of the darkroom 1.
According to the embodiment of the specification, on the basis of meeting the test requirement of the production line, the mode of an automatic production line is combined, the actions of automatic feeding and discharging, automatic positioning, automatic plugging, automatic testing and the like are performed through the butt joint of the conveying mechanism 3, the process of manual intervention is canceled, the 24-hour unmanned management of a factory can be realized, the test time is saved, the productivity is improved, and the human resources are released.
The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (6)
1. An antenna testing system, comprising:
a darkroom (1);
the first bearing mechanism (2) is arranged in the darkroom (1);
the conveying mechanism (3) is arranged outside the darkroom (1), and the conveying mechanism (3) is used for conveying the antenna to be tested to the first bearing mechanism (2);
the plugging mechanism is arranged in the darkroom (1);
the testing mechanism (5) is arranged in the darkroom (1), and the testing mechanism (5) is used for testing the antenna to be tested;
the control mechanism is respectively connected with the first bearing mechanism (2), the conveying mechanism (3), the plugging mechanism and the testing mechanism (5), and is used for controlling the conveying mechanism (3) and the testing mechanism (5), and the control mechanism is also used for controlling the plugging mechanism to be connected with the antenna to be tested when the antenna to be tested is conveyed in place, and disconnecting the connection between the plugging mechanism and the antenna to be tested when the testing mechanism (5) is tested;
the antenna to be tested is characterized by further comprising a second bearing mechanism (6), wherein the second bearing mechanism (6) bears the antenna to be tested;
the conveying mechanism (3) is used for conveying the second bearing mechanism (6) to the first bearing mechanism (2);
The plugging mechanism comprises a first plugging module (41) and a second plugging module (42), the first plugging module (41) is connected with the first bearing mechanism (2), the second plugging module (42) is connected with the second bearing mechanism (6), and the second plugging module (42) is connected with the antenna to be tested;
the control mechanism is connected with the first plug-in module (41) and is used for controlling the first plug-in module (41) to be connected with the second plug-in module (42) when the second bearing mechanism (6) is conveyed in place, and disconnecting the connection between the first plug-in module (41) and the second plug-in module (42) when the test of the test mechanism (5) is finished;
the first bearing mechanism (2) comprises a displacement module and a lifting module (29), the lifting module (29) is connected with the displacement module, and the first plug-in module (41) is connected with the displacement module;
the conveying mechanism (3) is used for conveying the second bearing mechanism (6) to the displacement module;
the control mechanism is connected with the lifting module (29), and is used for controlling the lifting module (29) to ascend when the second bearing mechanism (6) is conveyed in place so as to enable the first plugging module (41) to be connected with the second plugging module (42), and is also used for controlling the lifting module (29) to descend when the test of the test mechanism (5) is finished so as to enable the first plugging module (41) to be disconnected with the second plugging module (42);
The first bearing mechanism (2) further comprises a first limiting module (231), and the first limiting module (231) is connected with the displacement module;
the control mechanism is connected with the first limit module (231) and is used for controlling the first limit module (231) to be connected with the second load-bearing mechanism (6) when the second load-bearing mechanism (6) is conveyed in place, so that the first limit module (231) applies a force in a target direction to the second load-bearing mechanism (6), and the target direction is opposite to the rising direction of the lifting module (29);
the second bearing mechanism (6) comprises a tray (61), the tray (61) is provided with a groove, and the tray (61) bears the antenna to be tested;
the first limiting module (231) comprises a positioning block (2311) and a rotating piece (2312), a first end of the rotating piece (2312) is connected with the displacement module, and a second end of the rotating piece (2312) is connected with the positioning block (2311);
the control mechanism is connected with the rotating piece (2312), and is used for controlling the rotating piece (2312) to rotate and driving the positioning piece (2311) to rotate, so that the positioning piece (2311) is clamped to the groove and applies force in a target direction to the tray (61).
2. The antenna testing system according to claim 1, wherein the lifting module (29) comprises a lifting cylinder connected to the displacement module and the control mechanism, respectively.
3. The antenna testing system of claim 1, wherein the first limit module (231) further comprises a first telescopic member (2313), the first telescopic member (2313) being respectively connected to the displacement module and the rotation member (2312), the first telescopic member (2313) being configured to translate the rotation member (2312);
the control mechanism is connected with the first telescopic piece (2313), and is used for controlling the first telescopic piece (2313) to stretch and retract and driving the rotating piece (2312) to translate.
4. The antenna testing system according to claim 1, wherein the first carrying mechanism (2) further comprises a second limit module comprising a second telescopic member (232) and a baffle plate (233), the second telescopic member (232) being connected to the displacement module and the baffle plate (233), respectively;
the control mechanism is connected with the second telescopic piece (232), and is used for controlling the second telescopic piece (232) to stretch and drive the baffle (233) to translate, so that the baffle (233) is connected with the second bearing mechanism (6) and applies horizontal force to the second bearing mechanism (6).
5. The antenna test system according to claim 1, wherein the displacement module comprises a first displacement assembly (21), a second displacement assembly (22) and a third displacement assembly (23), the first displacement assembly (21) being connected to the darkroom (1) and the second displacement assembly (22), respectively, the second displacement assembly (22) being connected to the third displacement assembly (23), the third displacement assembly (23) being connected to the second carrier means (6);
the control mechanism is respectively connected with the first displacement assembly (21), the second displacement assembly (22) and the third displacement assembly (23), and is used for controlling the first displacement assembly (21) to translate along a first displacement track, controlling the second displacement assembly (22) to translate along a second displacement track and controlling the third displacement assembly (23) to translate along a third displacement track, wherein the first displacement track, the second displacement track and the third displacement track are perpendicular to each other.
6. The antenna test system according to claim 1, wherein the test mechanism (5) comprises a support frame (50), a first test frame (51), a second test frame (52), a rotating assembly and a test assembly (70), the support frame (50) being connected to the darkroom (1), the first test frame (51) being connected to the support frame (50), the second test frame (52) being connected to the first test frame (51), the rotating assembly being connected to the second test frame (52), the test assembly (70) being connected to the rotating assembly;
The control mechanism is respectively connected with the first test frame (51), the second test frame (52), the rotating assembly and the test assembly (70), the control mechanism is used for controlling the first test frame (51) to translate along a first horizontal track, controlling the second test frame (52) to translate along a second horizontal track, controlling the rotating assembly to rotate and drive the test assembly (70) to rotate, controlling the test assembly (70) to test the antenna to be tested, and the first horizontal track is perpendicular to the second horizontal track.
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| CN202111265831.8A CN115754492B (en) | 2021-10-28 | 2021-10-28 | Antenna test system |
| PCT/CN2022/124095 WO2023071738A1 (en) | 2021-10-28 | 2022-10-09 | Antenna test system |
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| CN202111265831.8A CN115754492B (en) | 2021-10-28 | 2021-10-28 | Antenna test system |
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