CN115754492A - Antenna test system - Google Patents
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- CN115754492A CN115754492A CN202111265831.8A CN202111265831A CN115754492A CN 115754492 A CN115754492 A CN 115754492A CN 202111265831 A CN202111265831 A CN 202111265831A CN 115754492 A CN115754492 A CN 115754492A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The application provides an antenna test system includes: 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 detected to the first bearing mechanism; the inserting mechanism is arranged in the darkroom; the testing mechanism is arranged in the darkroom and used for testing the antenna to be tested; the control mechanism is respectively connected with the first bearing mechanism, the transmission mechanism, the plugging mechanism and the testing mechanism, the control mechanism is used for controlling the transmission mechanism and the testing mechanism, 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 transmitted to the position, and the connection between the plugging mechanism and the antenna to be tested is disconnected when the testing of the testing mechanism is finished. In the application, the control mechanism automatically connects/disconnects the plugging mechanism to/from the antenna to be tested, so that automation is realized, manual intervention is not needed, and the efficiency is high.
Description
Technical Field
The invention relates to the field of antenna test, in particular to an antenna test system.
Background
At present, 5G has entered into a formal business stage, and operators all around the world adopt large-scale base station equipment for building a 5G network. For a 5G base station antenna, the antenna and the RRU are integrated together, so that on one hand, interference factors such as electromagnetic coupling and active standing waves cannot be completely eliminated; on the other hand, the calibration and amplitude-phase weighting of the active antenna are completed through the cooperation 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 greatly different from that of the passive antenna array. Therefore, for the 5G base station adopting the large-scale MIMO active antenna technology, the performance index of the base station can be effectively reflected by an integrated OTA test mode.
The OTA test must be carried out in a darkroom, and for a production line with a flow line operation, an antenna to be tested and a test system need to be connected in a manual intervention mode in the antenna test process, so that the test efficiency is low.
Disclosure of Invention
The application provides an antenna test system, which can at least solve the technical problem that the test efficiency of the existing test system is low.
The application provides an antenna test system, includes:
a darkroom;
the first bearing mechanism is arranged in the darkroom;
the conveying mechanism is arranged outside the darkroom and is used for conveying the antenna to be tested to the first bearing mechanism;
the inserting and connecting mechanism is arranged in the darkroom;
the testing mechanism is arranged in the darkroom and used for testing the antenna to be tested;
control mechanism, control mechanism respectively with first bearing mechanism the transport mechanism connect with connect the jack and the accredited testing organization, control mechanism is used for control transport mechanism with accredited testing organization, control mechanism still is used for the antenna that awaits measuring is controlled when being conveyed the position connect the jack and connect the antenna that awaits measuring, disconnection when accredited testing organization test finishes connect jack with the connection between the antenna that awaits measuring.
In a possible implementation manner, the antenna testing device further includes a second bearing mechanism, where 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 plugging mechanism comprises a first plugging module and a second plugging module, 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 plugging module, and is used for controlling the first plugging module to be connected with the second plugging module when the second bearing mechanism is conveyed to a position, and disconnecting the first plugging module from the second plugging module when the test of the test mechanism is finished.
In a possible implementation manner, the first bearing mechanism includes a displacement module and a lifting module, the lifting module is connected with the displacement module, and the first plugging 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, the control mechanism is used for controlling the lifting module to ascend when the second bearing mechanism is conveyed to a position so that the first plug-in module is connected with the second plug-in module, and the control mechanism is also used for controlling the lifting module to descend when the test of the test mechanism is finished so that the first plug-in module is disconnected with the second plug-in module.
In one possible implementation, the lifting module includes a jacking cylinder, and the jacking cylinder is connected with the displacement module and the control mechanism respectively.
In a possible implementation manner, the first bearing mechanism further includes a first limit module, and the first limit module is connected to the displacement module;
the control mechanism is connected with the first limiting module and used for controlling the first limiting module to be connected with the second bearing mechanism when the second bearing mechanism is conveyed to a position, so that the first limiting module applies force to the second bearing mechanism in a target direction, and the target direction is opposite to the ascending direction of the lifting module.
In a possible implementation manner, the second bearing mechanism includes 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, the first end of the rotating piece is connected with the displacement module, and the second end of the rotating piece is connected with the positioning block;
the control mechanism is connected with the rotating piece and 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 a possible implementation manner, the first limiting module further includes a first telescopic member, the first telescopic member is respectively connected to the displacement module and the rotating member, 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 drive the rotating piece to translate.
In a possible implementation manner, the first bearing mechanism further includes a second limiting module, the second limiting module includes a second telescopic member and a baffle, and the second telescopic member is connected to the displacement module and the baffle respectively;
the control mechanism is connected with the second telescopic piece and used for controlling the second telescopic piece to stretch and drive the baffle to translate so that the baffle is connected with the second bearing mechanism and applies horizontal force to the second bearing mechanism.
In a 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 a possible implementation manner, the testing mechanism includes a supporting frame, a first testing frame, a second testing frame, a rotating assembly and a testing assembly, the supporting frame is connected with the darkroom, the first testing frame is connected with the supporting frame, the second testing frame is connected with the first testing frame, the rotating assembly is connected with the second testing frame, and the testing assembly is connected with the rotating assembly;
control mechanism respectively with first test jig the second test jig the rotating assembly with the test component is connected, control mechanism is used for controlling first test jig is along first horizontal orbit translation, controls the second test jig is along second horizontal orbit translation, controls rotating assembly is rotatory and drives test component is rotatory, control test component test the antenna that awaits measuring, first horizontal orbit with the second horizontal orbit is mutually perpendicular.
In the application, the control mechanism automatically connects/disconnects the plugging mechanism to/from the antenna to be tested, so that automation is realized, manual intervention is not needed, efficiency is high, and the technical problem of low testing efficiency of the existing testing system can be solved. The method and the device can realize process automation, simplify the testing process on the premise of ensuring the testing precision and improve the testing efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating a positional relationship between a darkroom and a transfer mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 2 is a schematic diagram of an auto-feed shield door in an antenna test system according to an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a connection relationship between 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 carrying mechanism and a second carrying mechanism in an antenna testing system according to an exemplary embodiment;
FIG. 5 is a schematic structural diagram illustrating a first carrier mechanism in an antenna test system according to an exemplary embodiment;
FIG. 6 is a schematic diagram illustrating a first displacement assembly of an antenna test system in accordance with 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 structural diagram illustrating a tray in an antenna test system from a top view according to an exemplary embodiment;
fig. 9 is a schematic structural diagram illustrating a tray in an antenna test system from a bottom perspective according to an exemplary embodiment;
fig. 10 is a schematic diagram illustrating a connection structure of a third displacement assembly, a first limiting module and a second limiting module in an antenna testing system according to an exemplary embodiment;
fig. 11 is a schematic diagram illustrating a connection structure of a third displacement assembly and a first position limiting 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 limiting module and a lifting module in an antenna testing system according to an exemplary embodiment; a
FIG. 13 is a schematic diagram illustrating a configuration of a test mechanism in an antenna test system in accordance with one illustrative 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 can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively 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.
Furthermore, in the following detailed description, numerous specific details are set forth 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 that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
The application provides an antenna test system, which can at least solve the technical problem that the test efficiency of the existing test system is low.
With reference to fig. 1 to 14, an embodiment of the present specification provides an antenna testing system, including:
a darkroom 1;
the first bearing mechanism 2, the first bearing mechanism 2 locates in 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 inserting 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 transmission mechanism 3, the plugging mechanism and the testing mechanism 5, the control mechanism is used for controlling the transmission mechanism 3 and the testing mechanism 5, 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 transmitted to the position, and the connection between the plugging mechanism and the antenna to be tested is disconnected when the testing of the testing mechanism 5 is finished.
In the embodiment of the present specification, anechoic chamber 1 may be an anechoic chamber 1, anechoic chamber 1 is an environment necessary for an Over-the-Air Technology (OTA) test, and anechoic chamber 1 includes a shield 15 and a wave absorber 16. The absorber 16 may be a wedge-shaped absorbing material. An automatic feed shield door 10 is provided on one surface of the shield 15. The transfer mechanism 3 may be disposed opposite to the auto feed shield door 10. The automatic feeding shield door 10 is externally provided with a photoelectric switch, and when the photoelectric switch senses that the transmission mechanism 3 conveys the antenna to be detected to the gate of the automatic feeding shield door 10, the shield door 10 can be automatically opened.
When the transmission mechanism 3 transmits the antenna to be tested, the transmission mechanism 3 is arranged opposite to the first bearing mechanism 2. When the shield door 10 is opened, the conveying mechanism 3 can convey 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. First bearing mechanism 2 is located in darkroom 1, can bear the antenna that awaits measuring, and first bearing mechanism 2 can remove in darkroom 1 to the position of adjustment antenna that awaits measuring can be tested the antenna that awaits measuring in 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 be ensured to automatically run along a preset route without manual piloting, 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 specification adopts a roller back-pack type, and the height of the roller is the same as that of the shielding door 10 of the anechoic chamber 1.
The antenna to be tested is transferred to the antenna mounting area in the first carrying mechanism 2. The plugging mechanism can be used for connecting the antenna to be tested when the antenna to be tested is conveyed in place, and transmitting an electric signal between the antenna to be tested and the control mechanism, wherein the electric signal can be a signal for controlling the transmitting parameter of the antenna, and the transmitting parameter of the antenna can be the phase, amplitude and the like of the transmitting signal of the antenna. The signals sent to the antenna to be tested by the control mechanism through the plug-in mechanism comprise radio frequency signals, optical signals, strong and weak electric signals and the like of the antenna to be tested. The plug-in mechanism can be disconnected from the antenna when the test mechanism 5 finishes the test, so that the first bearing mechanism 2 can conveniently convey the antenna to the conveying mechanism 3, and the antenna can be conveyed out of the darkroom 1.
The testing mechanism 5 can send signals to the antenna to be tested and also can receive signals sent by the antenna to be tested, so that signal interaction is carried out between the testing mechanism and 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 transmission mechanism 3, the plugging mechanism and the testing mechanism 5, the control mechanism is used for controlling the transmission mechanism 3 to transmit 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 transmitted to a position, controlling the testing mechanism 5 to test when the plugging mechanism is connected with the antenna to be tested, controlling the plugging mechanism to be disconnected with the antenna to be tested when the test is finished, and controlling the transmission mechanism 3 to transmit 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 conveyed in place, the plugging mechanism needs to be connected to the antenna to be tested manually, and the efficiency is low.
In the embodiment of the specification, the control mechanism automatically connects/disconnects the plugging mechanism to/from the antenna to be tested, so that automation is realized, manual intervention is not needed, efficiency is high, and the technical problem of low testing efficiency of the conventional testing system can be solved. The embodiment of the specification can realize flow automation, simplify the testing flow on the premise of guaranteeing the testing precision, improve the testing efficiency and reduce the occupied space.
In a possible implementation manner, the auto-feed screen door 10 may be one, and correspondingly, a single-in single-out manner may be adopted to convey the antenna to be tested into the darkroom 1 or convey the antenna out of the darkroom 1 through the one auto-feed screen door 10. The automatic feeding screen door 10 may also be two, and correspondingly, a straight-through type access mode may be adopted, in which the antenna to be tested is transferred into the darkroom 1 through one automatic feeding screen door, and the antenna is transferred out of the darkroom 1 through the other automatic feeding screen door.
The shield door 10 is a lifting structure, and is composed of a door panel 11 and driving mechanisms 12 on the left and right sides, and the driving mechanisms 12 are distributed on the left and right sides of the door body and are symmetrically arranged. The driving mechanism 12 drives the door panel 11 to move up and down, and at the lower limit position, the driving mechanism can also drive the door panel 11 to move back and forth, and continuously provides the door panel 11 with a fitting force to the door frame under the state that the door is closed, so that the shielding and sealing functions are achieved. The driving mechanism 12 is composed of a driving cylinder 151, a traction plate 141, a guide plate 131 and a concentric shaft set, the concentric shaft set is fixed on the door panel 11, one section of the shaft is provided with a roller, and the other section of the shaft is provided with a copper sleeve. The roller slides in the guide groove of the guide plate 131, and the copper bush slides in the slide groove of the traction plate 141. The driving cylinder 151 drives the traction plate 141 to move up and down, a sliding groove with an angle of 45 degrees is formed in the traction plate 141, the concentric shafts are assembled in the sliding groove, and when the traction plate 141 moves up and down, component forces in the horizontal direction and the vertical direction can be simultaneously given to the concentric shaft group. The guide groove of the guide plate 131 controls the direction of the door movement. The movement of the driving cylinder 151 is controlled by a solenoid valve, and the door panel 11 can be immediately stopped when the solenoid valve is suddenly de-energized. The other side of the shield body 15 is also provided with a maintenance shield door 14, so that personnel can conveniently go in and out for maintenance. The wave-absorbing material is arranged on six surfaces inside the shielding body 15, so that the influence of multipath effect on a test result caused by signal reflection of the inner wall can be reduced. The anechoic chamber 1 further has basic functions of illumination, video monitoring, temperature and humidity monitoring and smoke detection and alarm, and the safety of testing is guaranteed.
In a possible implementation manner, the antenna testing device further comprises 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 to the position, and disconnecting the first plug-in module 41 from 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 bearing mechanism 6 is detachably connected to the first bearing mechanism 2, the antenna to be tested can be mounted on the second bearing mechanism 6, the second bearing mechanism 6 can be placed on the conveying mechanism 3, and the conveying mechanism 3 can convey the antenna to be tested by conveying the second bearing mechanism 6. The antenna to be tested is mounted on the second bearing mechanism 6, and then the second bearing mechanism 6 is conveyed, wherein the second bearing mechanism 6 can be used 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 subsequently.
In this embodiment, an operator may mount the antenna to be tested on the second supporting mechanism 6, and connect the antenna to be tested to the second patch module 42 through a signal line. The first patch module 41 and the second patch module 42 are detachably connected, and when the second bearing mechanism 6 is conveyed in place, the control mechanism controls the first patch module 41 to be connected with the second patch module 42, and the antenna to be tested, the second patch module 42, the electric connection circuit between the first patch module 41 and the control mechanism are connected, so that the control mechanism can send an electric signal to the antenna to be tested, and the antenna test is performed. When the test of the testing mechanism 5 is finished, the control mechanism can control the first plugging module 41 to be separated from the second plugging module 42, and disconnect the first plugging module 41 and the second plugging module 42, so as to prevent the signal line from influencing the transmission mechanism 3 to transmit the second bearing mechanism 6 out of the darkroom 1. In the embodiment of the present specification, the first patch module 41 is connected to the second patch module 42, so that the connection between the antenna to be tested and the control mechanism can be realized, the control method is simple, and the operation is convenient.
In one possible implementation, the first support mechanism 2 includes a displacement module and a lifting module 29, the lifting module 29 is connected to the displacement module, and the first plug-in module 41 is connected to 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, the control mechanism is used for controlling the lifting module 29 to ascend when the second bearing mechanism 6 is conveyed to the position so that the first plug-in module 41 is connected with the second plug-in module 42, and the control mechanism 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 plug-in module 41 is disconnected with the second plug-in module 42.
In this illustrative embodiment, the second support means 6 can be placed on the displacement module. When the second carrying mechanism 6 is transferred to the proper position, the control mechanism can control the lifting module 29 to ascend, and since the lifting module 29 is connected with the displacement module, the lifting module 29 can drive the displacement module to ascend, so that the first plug-in module 41 on the displacement module ascends and is connected to the second plug-in module 42. The control mechanism can also control the lifting module 29 to descend when the test of the test mechanism 5 is finished, and the lifting module 29 can drive the displacement module to descend, so that the first plug-in module 41 descends and is disconnected from the second plug-in module 42. The structure of this specification embodiment is simple, easily control.
In a possible implementation, the lifting module 29 comprises a jacking cylinder, which is connected with the displacement module and the control mechanism, respectively.
The function of the lifting module 29 in the embodiment of the present disclosure may be realized by a jacking cylinder, and the control mechanism may control the jacking cylinder to extend upward, pushing the displacement module upward, so that the second connector module 42 on the displacement module rises and is connected to the first connector module 41. The control mechanism can control the jacking cylinder to contract downwards, and 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 from the first plug-in module 41.
In a possible implementation manner, the first bearing 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 to the first position-limiting module 231, and the control mechanism is configured to control the first position-limiting module 231 to connect to the second carrying mechanism 6 when the second carrying mechanism 6 is conveyed to a position, so that the first position-limiting module 231 applies a force to the second carrying mechanism 6 in a target direction, which is opposite to the ascending direction of the lifting module 29.
In the embodiment of the present specification, when the second bearing mechanism 6 is conveyed in place, the control mechanism may control the first limiting module 231 to connect with the second bearing mechanism 6, because the first limiting module 231 is connected with the displacement module, and thus, the second bearing mechanism 6 may be limited to the displacement module by the first limiting module 231. When the jacking cylinder extends upwards, the displacement module can be driven to ascend, so that the second plug-in module 42 on the displacement module ascends; in the embodiment of the present specification, the first limiting module 231 applies a downward force 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 plugging module 41 cannot be connected with the second plugging module 42 is avoided, and the plugging effect of the plugging mechanism can be ensured.
Preferably, the first limiting module 231 in the embodiment of the present disclosure is disposed at an end of the displacement module close to the first connector module 41.
In a possible implementation manner, the second bearing mechanism 6 includes 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 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 this embodiment, the transmission mechanism 3 may transmit the antenna to be tested through the transmission tray 61, and the groove of the tray 61 may be used for the positioning block 2311 of the first limiting module 231 to be clamped. 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 conveying mechanism 3 conveys the tray 61 to the displacement module, the control mechanism can control the rotating piece 2312 to rotate to the horizontal position, and the positioning block 2311 is positioned below the tray 61 in the horizontal position, so that the conveying process that the positioning block 2311 blocks the tray 61 can be avoided. When the tray 61 is transferred to the right position, the control mechanism can control the rotating piece 2312 to rotate to the vertical position, the positioning block 2311 is clamped in the groove of the tray 61 in the vertical position, the bottom of the positioning block 2311 can abut against the upper surface of the groove, the positioning block 2311 can apply downward force to the tray 61, and the limiting function of the first limiting module 231 is achieved. Tray 61 is used for the rotatory antenna that awaits measuring, as general spare part, possesses characteristics such as compatibility strong, stable in structure.
In a possible implementation manner, the first limiting module 231 further includes a first telescopic element 2313, the first telescopic element 2313 is connected to the displacement module and the rotating element 2312 respectively, and the first telescopic element 2313 is used for driving the rotating element 2312 to translate;
the control mechanism is connected with the first telescopic piece 2313 and is used for controlling the first telescopic piece 2313 to stretch and drive the rotating piece 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 cooperate 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 piece 2313 to extend in the direction away from the displacement module, and then control the rotating piece 2312 to rotate to the horizontal position, and the positioning block 2311 is positioned below the tray 61 in the horizontal position, so that the positioning block 2311 can be prevented from blocking the tray 61 to move into the darkroom 1. When the tray 61 is transferred to the right place, the control mechanism can control the rotating part 2312 to rotate to the vertical position, and then control the first telescopic part 2313 to contract towards the direction close to the displacement module, so that the positioning block 2311 is clamped in the groove of the tray 61, the bottom of the positioning block 2311 can be abutted against the upper surface of the groove, the positioning block 2311 can apply downward force to the tray 61, and the limiting function of the first limiting module 231 is realized. When the test is finished, the control mechanism can control the first telescopic part 2313 to extend towards the direction far away from the displacement module, and then control the rotating part 2312 to rotate to the horizontal position, so that the positioning block 2311 is prevented from blocking the tray 61 to move towards the outside of the darkroom 1.
In a possible implementation manner, the first bearing mechanism 2 further includes a second limiting module, the second limiting module includes a second telescopic member 232 and a baffle 233, and the second telescopic member 232 is connected to the displacement module and the baffle 233 respectively;
the control mechanism is connected with the second telescopic member 232, and the control mechanism 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, when the tray 61 is conveyed to a proper position, the control mechanism may control the second limiting module to apply a horizontal force to the tray 61, so as to further limit the tray 61, and prevent the tray 61 from shifting to affect the antenna test.
In a possible implementation manner, the displacement module includes 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 to each other.
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, thereby testing the performance of the antenna 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 the embodiment of the present specification, the displacement module may be installed in a lower space of the anechoic chamber 1, and the displacement module may move on a first displacement trajectory, a second displacement trajectory, and a third displacement trajectory. The displacement module can be used for conveying the antenna to be tested to the feed door of the anechoic chamber 1 for connection of 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 on two sides of the first base 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 base plate. After the speed of the first motor 215 is reduced by the first speed reducer 216, the power is transmitted to the 4 lifters 217 through the transmission shaft, the lifters 217 are internally provided with nut pairs, and the lifters 217 are matched with the ball screw shaft 213, so that synchronous lifting action of the first guide rails 211 on two sides is realized. The first slider 212 is slidably disposed on the first guide rail 211. The control mechanism is connected to the first motor 215, and the control mechanism controls the first motor 215 to drive and control the first guide rail 211 to move up and down along the ball screw 213. The ball screw shaft 213 is disposed in the first displacement track direction.
The second displacement assembly 22 includes a second bottom plate, a second guide rail 221, a second slider 222, a second screw nut pair, a motor, and a second speed reducer, a driving device composed of the second motor, the second speed reducer, and the second screw nut pair is installed on the first bottom plate of the first displacement assembly 21, the two second guide rails 221 are both cross-connected with the two first guide rails, and the installation direction of the second guide rails 221 is perpendicular to the installation direction of the first guide rails. The second slider 222 is slidably disposed on the second guide rail 221. The bottom of the second guide rail 221 is connected to the first slider of the first displacement assembly 21, whereby the second guide rail 221 can slide on the first guide rail. The control mechanism is connected to the second motor, and controls the second displacement assembly 22 to move on the first guide rail by controlling the second motor. The arrangement direction of the first guide rail is the direction of the second displacement track.
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 composed of the third screw-nut pair, the third motor, and the third speed reducer is installed 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 base plate 230 is mounted on the second slider 222 of the second displacement assembly 22, whereby the third base plate 230 can slide on the second guide rail 221 of the second displacement assembly 22. The control mechanism is connected to the third motor, and the control mechanism controls the third displacement assembly 23 to move on the second guide rail 221 by controlling the third motor. The second guide rail 221 is disposed in the third displacement track direction. A roller assembly 237 is further disposed on the third bottom plate 230 of the third displacement assembly 23, and the roller assembly 237 may have 2 power rollers and 3 passive rollers for receiving and delivering the tray 61. The roller assembly 237 may receive the tray 61 transferred by the transfer mechanism 3, and may transfer the tray 61 to the transfer mechanism 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 the lifting of the roller assembly 237 through the lifting cylinder to connect or disconnect the first connector module 41 and the second connector module 42.
In the embodiment of the present disclosure, the first plug-in module 41 is mounted on the third bottom plate 230 of the third displacement assembly 23, the jacking cylinder is mounted at the bottom of the third bottom plate 230 of the third displacement assembly 23, the second plug-in 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 plug-in module 41 is connected to the second plug-in module 42, and the third bottom plate 230 can be driven to descend by the movement of the cylinder, so that the first plug-in module 41 is pulled out from the second plug-in module 42.
In a possible implementation manner, the testing mechanism 5 includes a supporting frame 50, a first testing frame 51, a second testing frame 52, a rotating component and a testing component 70, the supporting frame 50 is connected with the darkroom 1, the first testing frame 51 is connected with the supporting frame 50, the second testing frame 52 is connected with the first testing frame 51, the rotating component is connected with the second testing frame 52, and the testing component 70 is connected with the rotating component;
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 driving the test assembly 70 to rotate, and controlling the test assembly 70 to test the antenna to be tested, and the first horizontal track is perpendicular to the second horizontal track.
In the embodiment of the present disclosure, the supporting frame 50 is connected to the darkroom 1, the supporting frame 50 plays a supporting role, and the first testing frame 51 and the second testing frame 52 can move in the darkroom 1 to adjust the position of the testing component 70, so that different positional relationships are formed between the antenna to be tested and the testing mechanism 5, and the performance of the antenna can be tested more comprehensively. The first horizontal trajectory and the second horizontal trajectory are both trajectories in the horizontal direction. The supporting frame 50 is provided with a first testing guide rail, the direction of the first testing guide rail is a first horizontal track, and the first testing frame 51 is slidably arranged on the first testing guide rail. The first testing frame 51 is provided with a second testing guide rail, the direction of the second testing guide rail is a second horizontal track, and the second testing frame 52 is slidably arranged on the second testing guide rail.
In the embodiment described herein, the test mechanism 5 is installed in the top space of the anechoic chamber 1. The control mechanism may control the first test rack 51 to translate along a first horizontal path and the second test rack 52 to translate along a second horizontal path, thereby allowing the test assembly 70 to move in any direction within the horizontal plane. The test assembly 70 is mounted on the rotating assembly, and the control of any angle pitch is realized through the rotating assembly. The test component 70 is a 1-piece dual-polarized antenna, and corresponds to the polarization direction of the antenna to be tested. The dual-polarized antenna is fixed on the antenna mounting plate, and the antenna mounting plate is fixed on the rotating component.
In the embodiment of the present specification, the control mechanism may control and acquire the state of the anechoic chamber 1, the transport mechanism 3, the testing mechanism 5, the first carrying mechanism 2, and the second carrying mechanism 6, and the control mechanism includes a main control module, a driving module, a strong current module, and a weak current module. The electric components are arranged inside the anechoic chamber 1 and are 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 the test cabinet 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 radio frequency channels, the input end is connected to the port of the measuring probe 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 instruments are commonly used signal sources, frequency spectrometers and power meters, and are used for testing uplink and downlink signals of the antenna to be tested and analyzing data. And 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.
Electromagnetic environment monitoring system gathers the signal power in a certain distance through monitor probe, and monitor probe generally installs on the near wall or roof of anechoic chamber 1, then through the mode that sets up the threshold value, leaks after the outside reaches certain critical value when the test signal in the anechoic chamber 1, carries out the system alarm, confirms test security. Meanwhile, external electromagnetic environment signals are collected, whether an overlarge radiation level exists or not is monitored, and personal safety of staff of a production line is guaranteed.
5G base station using MIMOThe number of elements is 64 or more in the design of the antenna. During the development stage, all oscillators are always operated together, so that for the darkroom 1, the aperture surface to be tested is large, and the distance of a required far field is large (2D) 2 Lambda/lambda). Therefore, in the production line test, the test can be simplified to test only a single oscillator or a small group of oscillators, so that the requirement on the far-field distance is lower. When a single oscillator or a small group of oscillators are tested, the measuring probe needs to be moved above the phase center of the single oscillator or the small group of oscillators, so that the test of all single oscillators or all group of oscillators can be completed in a relatively small darkroom 1 space by utilizing the combined movement of the first bearing mechanism 2 and the testing mechanism 5, and the test items are generally amplitude-phase calibration and the like.
The following describes a test method of the antenna test system provided in the embodiments of the present specification.
The operator can mount the antenna to be tested on the tray 61 of the second bearing 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 to the darkroom 1, a photoelectric switch is arranged outside the automatic feeding shielded door 10 of the darkroom 1, and when the photoelectric switch senses that the conveying mechanism 3 conveys the tray 61 to the door of the automatic feeding shielded door 10, the shielded 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 to 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 to the position. 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 the feeding is in place, the control mechanism can control the automatic feeding shielding door 10 to be closed. Further, the control mechanism can control the second limit module to horizontally limit the tray 61, control the first limit 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 plug-in module 41 on the third displacement assembly 23 is connected to the second plug-in module 42 on the tray 61. Further, the control mechanism can control the first displacement assembly 21 to move on the first displacement track, control the second displacement assembly 22 to move on the second displacement track, and control the third displacement assembly 23 to move on 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 the rotation of the rotating assembly to adjust the pitch angle of the test assembly 70. During testing, the control mechanism controls the antenna to be tested and the testing component 70 to perform signal interaction.
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 convey the tray 61 to the conveying mechanism 3 through the roller assembly 237, so as to convey the antenna to be tested to the outside of the darkroom 1.
On the basis of meeting the testing requirements of a production line, the embodiment of the specification combines the mode of an automatic production line, and the actions of butt joint, automatic feeding and discharging, automatic positioning, automatic insertion, automatic testing and the like are performed through the conveying mechanism 3, so that the process of manual intervention is cancelled, 24-hour unmanned management of a factory can be realized, the testing time is saved, the productivity is improved, and human resources are released.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. An antenna test system, comprising:
a darkroom (1);
the first bearing mechanism (2), the said first bearing mechanism (2) locates in the said 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 inserting and connecting mechanism is arranged in the darkroom (1);
the testing mechanism (5), the said testing mechanism (5) is located in the said darkroom (1), the said testing mechanism (5) is used for testing the said antenna to be measured;
control mechanism, control mechanism respectively with first bearing mechanism (2), transport mechanism (3) connect plug mechanism with accredited testing organization (5) are connected, control mechanism is used for controlling transport mechanism (3) with accredited testing organization (5), control mechanism still is used for the antenna that awaits measuring is controlled when being conveyed the position connect plug mechanism connects the antenna that awaits measuring the disconnection when accredited testing organization (5) test is ended connect plug mechanism with be awaited measuring between the antenna.
2. The antenna test system according to claim 1, further comprising a second carrying mechanism (6), wherein the second carrying mechanism (6) carries 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 plugging module (41), and is used for controlling the first plugging module (41) to be connected with the second plugging module (42) when the second bearing mechanism (6) is transmitted to a position, and disconnecting the first plugging module (41) from the second plugging module (42) when the test of the test mechanism (5) is finished.
3. The antenna test system according to claim 2, characterized in that the first carrier means (2) comprises a displacement module and a lifting module (29), the lifting module (29) being connected with the displacement module, the first plug-in module (41) being 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 with lift module (29) is connected, control mechanism is used for when second bears mechanism (6) and is conveyed the position lift module (29) rises to make first connecing connect plug in module (41) second and connect plug in module (42), control mechanism still is used for when test mechanism (5) test is finished control lift module (29) descends, so that first connect plug in module (41) with the second connect and break off between the module (42).
4. The antenna test system according to claim 3, characterized in that the lifting module (29) comprises a jacking cylinder, which is connected with the displacement module and the control mechanism, respectively.
5. The antenna test system according to claim 3, wherein the first carrier means (2) further comprises a first stop module (231), the first stop module (231) being connected to 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 bearing mechanism (6) when the second bearing mechanism (6) is conveyed to a position, so that the first limit module (231) applies force to the second bearing mechanism (6) in a target direction, and the target direction is opposite to the ascending direction of the lifting module (29).
6. The antenna test system according to claim 5, characterized in that the second carrying mechanism (6) comprises a tray (61), the tray (61) is provided with a groove (610), 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 with the rotating piece (2312) and is used for controlling the rotating piece (2312) to rotate and driving the positioning block (2311) to rotate, so that the positioning block (2311) is clamped to the groove (610) and applies a force in a target direction to the tray (61).
7. The antenna testing system according to claim 6, wherein the first limiting module (231) further comprises a first telescopic member (2313), the first telescopic member (2313) is respectively connected with the displacement module and the rotating member (2312), and the first telescopic member (2313) is used for driving the rotating member (2312) to translate;
the control mechanism is connected with the first telescopic piece (2313), and the control mechanism is used for controlling the first telescopic piece (2313) to stretch and retract and driving the rotating piece (2312) to translate.
8. The antenna test system according to claim 5, characterized in that the first carrier means (2) further comprises a second limit module comprising a second telescopic member (232) and a baffle (233), the second telescopic member (232) being connected to the displacement module and the baffle (233), respectively;
the control mechanism is connected with the second telescopic piece (232), and the control mechanism is used for controlling the second telescopic piece (232) to stretch and drive the baffle plate (233) to translate, so that the baffle plate (233) is connected with the second bearing mechanism (6) and applies horizontal force to the second bearing mechanism (6).
9. The antenna test system according to claim 3, characterized in that 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 with the darkroom (1) and the second displacement assembly (22), respectively, the second displacement assembly (22) being connected with the third displacement assembly (23), the third displacement assembly (23) being connected with the second carrier (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.
10. The antenna testing system according to claim 1, characterized in that the testing mechanism (5) comprises a support frame (50), a first testing frame (51), a second testing frame (52), a rotating assembly and a testing assembly (70), wherein the support frame (50) is connected with the darkroom (1), the first testing frame (51) is connected with the support frame (50), the second testing frame (52) is connected with the first testing frame (51), the rotating assembly is connected with the second testing frame (52), and the testing assembly (70) is connected with the rotating assembly;
control mechanism respectively with first test jig (51), second test jig (52) rotating assembly with test component (70) are connected, control mechanism is used for controlling first test jig (51) is along first horizontal orbit translation, control second test jig (52) is along second horizontal orbit translation, control rotating assembly is rotatory and drives test component (70) are rotatory, control test component (70) test the antenna that awaits measuring, first horizontal orbit with second horizontal orbit looks vertically.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111265831.8A CN115754492B (en) | 2021-10-28 | 2021-10-28 | Antenna test system |
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| CN115754492A true CN115754492A (en) | 2023-03-07 |
| CN115754492B CN115754492B (en) | 2024-01-05 |
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| CN202111265831.8A Active CN115754492B (en) | 2021-10-28 | 2021-10-28 | Antenna test system |
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| WO (1) | WO2023071738A1 (en) |
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| 李冰;赖光霁;任超群;张振华;张彬;: "相控阵天线自动化测试研究与实现", 航天制造技术, no. 05, pages 63 - 67 * |
| 王亚楠: "电磁生物效应与电磁环境监测系统", 中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑, no. 5, pages 1 - 46 * |
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| CN115754492B (en) | 2024-01-05 |
| WO2023071738A1 (en) | 2023-05-04 |
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