CN217063747U - Test system - Google Patents
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- CN217063747U CN217063747U CN202220693056.XU CN202220693056U CN217063747U CN 217063747 U CN217063747 U CN 217063747U CN 202220693056 U CN202220693056 U CN 202220693056U CN 217063747 U CN217063747 U CN 217063747U
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Abstract
The present application provides a test system comprising: the shielding box is internally provided with an accommodating space for placing a piece to be detected; the antenna coupling plates are arranged on the inner surface of the shielding box at intervals and are respectively used for being coupled with an antenna on the to-be-detected element; the switch is connected with the antenna coupling plates and used for switching the working state of each antenna coupling plate, and the working state comprises an opening state and a closing state; the test device is respectively connected with the change-over switch and the piece to be tested and used for testing the performance of each antenna of the piece to be tested, the plurality of antenna coupling plates are arranged on the inner surface of the shielding box at intervals, so that the antennas of the piece to be tested are respectively coupled with the antenna coupling plates, and the antennas of the piece to be tested can be respectively tested by switching the working states of different antenna coupling plates; by arranging the plurality of antenna coupling plates, each antenna on the piece to be tested can be coupled with the antenna coupling plate with better matching property, and the testing efficiency and the testing accuracy of each antenna are improved.
Description
Technical Field
The application relates to the field of product testing, in particular to a testing system.
Background
With the development of wireless communication technology, the application range of communication products in daily life is wider and wider. Before a communication product is shipped out, each antenna in the communication product generally needs to be tested. For the non-signaling test, because the antennas of some products are more and distributed at different positions, the position of the product needs to be changed continuously during the test, the antenna to be tested is close to the antenna coupling plate, the test efficiency is low, and each antenna can only be connected with one antenna coupling plate, so that whether the antenna is in the optimal test state cannot be determined, and the problem of poor accuracy of testing the performance of each antenna is caused.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a test system for improving the test efficiency and the test accuracy of each antenna.
The present application provides a test system, the system comprising: the shielding box is internally provided with an accommodating space for placing a piece to be detected; the antenna coupling plates are arranged on the inner surface of the shielding box at intervals and are respectively used for being coupled with the antenna on the piece to be tested; the switch is connected with the antenna coupling plates and used for switching the working state of each antenna coupling plate, and the working state comprises an opening state and a closing state; and the testing device is respectively connected with the change-over switch and the piece to be tested and is used for testing the performance of each antenna of the piece to be tested.
In the embodiment of the application, a plurality of antenna coupling plates are arranged on the inner surface of a shielding box at intervals, a piece to be tested is placed in a containing space in the shielding box, so that each antenna on the piece to be tested can be coupled with one antenna coupling plate, errors caused by the fact that the distance between the antenna in the piece to be tested and the antenna coupling plates is too far are avoided, the antenna is connected with the antenna coupling plates through a change-over switch, the working states of different antenna coupling plates are switched, signals of antennas close to the antenna coupling plates can be obtained without changing the position of the piece to be tested, the testing efficiency of each antenna is improved, the antenna on the piece to be tested is respectively tested by connecting a testing device with the change-over switch and the piece to be tested, and each antenna on the piece to be tested can be coupled with the antenna coupling plates with better matching performance by arranging the plurality of antenna coupling plates, the accuracy of testing the performance of each antenna is improved.
In one embodiment, the test apparatus comprises: the frequency spectrograph is connected with the change-over switch and is used for measuring signals of an antenna coupled with the antenna coupling plate in an opening state; the first terminal is connected with the piece to be detected and is used for controlling the working state of each antenna in the piece to be detected and controlling the power of a signal transmitted by the piece to be detected; the antenna is connected with the frequency spectrograph and used for analyzing the transmitting performance of the antenna according to the antenna signal measured by the frequency spectrograph and the power of the transmitting signal of the piece to be measured; and the antenna coupling board is connected with the selector switch and used for controlling the selector switch to switch the working state of each antenna coupling board.
In this application embodiment, the spectrometer is connected to the switch to measure the signal of the antenna coupled to the antenna coupling plate in the on state, and then the first terminal is connected to the switch to control the switch to switch the working state of each antenna coupling plate, and further the first terminal is connected to the to-be-tested object, so as to control the working state of each antenna in the to-be-tested object and control the power of the signal transmitted by the to-be-tested object, and further analyze the antenna transmission performance according to the power of the signal transmitted by the to-be-tested object and the antenna signal measured by the spectrometer.
In one embodiment, the frequency spectrograph is connected with the switch through a radio frequency line.
In one embodiment, the first terminal is connected to the frequency spectrograph through a universal interface bus or a universal serial bus or a network cable.
In one embodiment, the first terminal is connected to the dut through an RJ45 cable.
In one embodiment, the test apparatus further comprises: the signal generator is respectively connected with the selector switch and the first terminal and is used for generating a test signal and sending the test signal to the antenna coupling plate in an open state; the first terminal is further configured to control the power of the test signal generated by the signal generator, and analyze the receiving performance of the antenna according to the signal received by the antenna connected to the antenna coupling board in the on state and the power of the test signal generated by the signal generator.
In the embodiment of the application, the signal generator is connected with the change-over switch to generate the test signal and send the test signal to the antenna coupling plate in the on state, so that the antenna coupled with the antenna coupling plate in the on state in the piece to be tested can receive the test signal, the first terminal is connected with the piece to be tested and the signal generator respectively to control the power of the test signal generated by the signal generator, and the receiving performance of the antenna is analyzed according to the power of the test signal received by the antenna in the piece to be tested and the power of the test signal generated by the signal generator.
In one embodiment, the test apparatus comprises: the signal generator is connected with the selector switch and used for generating a test signal and sending the test signal to the antenna coupling plate in an open state; the second terminal is connected with the signal generator and is used for controlling the power of the test signal generated by the signal generator; the antenna coupling board is connected with the antenna to be tested and used for receiving the test signal generated by the signal generator; and the switching switch is connected with the antenna coupling board and is used for controlling the switching switch to switch the working state of each antenna coupling board.
In the embodiment of the application, the second terminal is connected with the switch to control the switch to switch the working state of each antenna coupling board, the signal generator is connected with the switch to generate the test signal and send the test signal to the antenna coupling board in the on state, the second terminal is further connected with the signal generator to control the power of the test signal generated by the signal generator, and the receiving performance of the antenna is analyzed according to the power of the test signal generated by the signal generator and the signal received by the antenna connected with the antenna coupling board in the on state.
In one embodiment, the signal generator is connected to the switch through a radio frequency line.
In one embodiment, the second terminal is connected to the signal generator through a universal interface bus, a universal serial bus or a network cable.
In one embodiment, the second terminal is connected to the dut through an RJ45 cable.
In one embodiment, the switch is a radio frequency switch.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description and drawings, and from the claims.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a block diagram of a test system according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
Referring to fig. 1, fig. 1 is a block diagram of a test system according to an embodiment of the present disclosure, the test system including: shielding case, a plurality of antenna coupling board, change over switch and testing arrangement.
The shielding box is internally provided with an accommodating space for placing a piece to be tested. A plurality of antenna coupling boards are arranged on the inner surface of the shielding box at intervals, and each antenna coupling board is used for being coupled with an antenna on the element to be tested. The switch is connected with the antenna coupling plates and used for switching the working state of each antenna coupling plate, and the working state comprises an opening state and a closing state. The test device is respectively connected with the change-over switch and the piece to be tested and is used for testing the performance of each antenna of the piece to be tested.
It can be understood that, by disposing a plurality of antenna coupling boards on the inner surface of the shielding box at intervals, and disposing the to-be-tested piece in the accommodating space inside the shielding box, each antenna on the to-be-tested piece can be coupled with one antenna coupling board, thereby avoiding the error introduced during the test due to the too far distance between the antenna in the to-be-tested piece and the antenna coupling board, and by connecting the switch with the antenna coupling boards, the working states of different antenna coupling boards are switched, so that the signal of the antenna near the antenna coupling board can be obtained without changing the position of the to-be-tested piece, thereby improving the test efficiency of each antenna, and by connecting the test device with the switch and the to-be-tested piece, respectively testing the antennas of the to-be-tested piece, by disposing a plurality of antenna coupling boards, each antenna on the to-be-tested piece can be coupled with the antenna coupling board with better matching performance, the accuracy of testing the performance of each antenna is improved.
Illustratively, the dut may be a 5G product such as a mobile communication terminal, a router, or a CPE (Customer Premise Equipment).
It can be understood that if the to-be-tested part is a 5G CPE, an antenna coupling plate with a working frequency of 824MHz-5GHz may be selected, and in order to further improve the test accuracy, the smaller the insertion loss value and the standing-wave ratio of the selected antenna coupling plate are, the better the insertion loss value and the standing-wave ratio are, the specific types of the antenna coupling plate and the specific values of the insertion loss value and the standing-wave ratio may be selected by a person skilled in the art according to an actual application scenario, and details are not described herein.
In an embodiment, the device under test may be disposed at a center of the shielding box, and each antenna coupling plate is disposed on an inner surface of the shielding box and surrounds the device under test.
In one embodiment, the number of the antenna coupling plates may be 6, and the antenna coupling plates are respectively disposed at the front, rear, left, right, top, and bottom of the receiving space in the shielding box.
It can be understood that, through setting up the antenna coupling board in each direction of accommodating space, ensure that each antenna in the piece that awaits measuring has at least an antenna coupling board to couple, avoid because the antenna in the piece that awaits measuring is too far away from the distance of antenna coupling board, and lead to introducing the error when testing, need not to change the position of the piece that awaits measuring when testing simultaneously, can obtain the signal of the antenna that is close apart from the antenna coupling board, improve the test efficiency of testing each antenna, set up the antenna coupling board through setting up a plurality of positions in accommodating space, make each antenna on the piece that awaits measuring can couple with the antenna coupling board of matching nature preferred, improve the accuracy of the performance of testing each antenna.
It should be noted that the number of the antenna coupling plates 6 is merely an example, and those skilled in the art may set the specific number of the antenna coupling plates according to a specific application scenario.
In one embodiment, the test apparatus may include: the system comprises a frequency spectrograph and a first terminal.
The frequency spectrograph is connected with the change-over switch and is used for measuring signals of an antenna coupled with the antenna coupling plate in an opening state. The first terminal is connected with the piece to be tested and used for controlling the working state of each antenna in the piece to be tested and controlling the power of a signal transmitted by the piece to be tested. The first terminal is connected with the frequency spectrograph and used for analyzing the transmitting performance of the antenna according to the power of the antenna signal measured by the frequency spectrograph and the transmitting signal of the to-be-detected element. The first terminal is connected with the change-over switch and is used for controlling the change-over switch to switch the working state of each antenna coupling plate.
Illustratively, the first terminal may be a PC (Personal Computer) or the like.
It can be understood, through being connected spectrometer and change over switch, with the signal of the antenna of measuring and being in the antenna coupling board coupling of on-state, through being connected first terminal and change over switch, the operating condition of each antenna coupling board is switched to control change over switch, further through being connected first terminal and the piece that awaits measuring, the operating condition of each antenna and the power of the control piece transmission signal that awaits measuring in the control piece from this, and then according to the power of the piece transmission signal that awaits measuring and the antenna signal that the spectrometer measured to antenna emission performance analysis.
In one embodiment, the antenna of some of the devices under test may include both external and internal types. Through first terminal and the piece that awaits measuring be connected, can control the piece that awaits measuring and switch the antenna and the antenna coupling board of each different grade type and couple, make things convenient for follow-up each antenna to test in the piece that awaits measuring.
It is understood that the internal antenna is an antenna integrated in the device under test. The piece to be tested and the antenna are integrated, and the antenna is arranged inside the piece to be tested.
The external antenna is an antenna arranged on the surface of the piece to be measured. The antenna can be connected with the piece to be tested through an antenna socket on the surface of the piece to be tested, and can also be an antenna which is fixed on the surface of the piece to be tested and arranged outwards.
In one embodiment, the spectrometer may be connected to the switch via a radio frequency line.
In one embodiment, the first terminal may be connected to the frequency spectrograph through a universal interface bus or a universal serial bus or a network cable.
It can be understood that the first terminal is provided with related software for testing, and the data obtained by the measurement of the frequency spectrograph is acquired and recorded through the testing software, so that the data can be conveniently processed subsequently.
In an embodiment, the power of the signal transmitted by the to-be-detected element may be a preset value, and the first terminal is connected to the switch to control the operating states of the antenna coupling plates, so that the spectrometer can measure the signal of each antenna in the to-be-detected element coupled to each antenna coupling plate, and then the signal measured by the spectrometer is compared with the preset power value of the to-be-detected element, thereby analyzing the transmission performance of each antenna in the to-be-detected element.
In one embodiment, the test device may further comprise a signal generator.
The signal generator is respectively connected with the selector switch and the first terminal and used for generating a test signal and sending the test signal to the antenna coupling plate in an open state. The first terminal is also used for controlling the power of the test signal generated by the signal generator, and analyzing the receiving performance of the antenna according to the signal received by the antenna connected with the antenna coupling plate in the opening state and the power of the test signal generated by the signal generator.
It can be understood that the signal generator is connected with the change-over switch to generate a test signal and send the test signal to the antenna coupling plate in the on state, so that an antenna in the to-be-tested piece, which is coupled with the antenna coupling plate in the on state, can receive the test signal, the first terminal is connected with the to-be-tested piece and the signal generator respectively to control the power of the test signal generated by the signal generator, and the receiving performance of the antenna is analyzed according to the test signal received by the antenna in the to-be-tested piece and the power of the test signal generated by the signal generator.
In an embodiment of the application, the first terminal may be connected to the spectrometer and the signal generator simultaneously, and the spectrometer is enabled alone to test the transmission performance of each antenna in the to-be-tested object or the signal generator is enabled alone to test the reception performance of each antenna in the to-be-tested object by issuing the control instruction according to the actual application requirement.
In another embodiment of the present application, the test system can be used to test the receiving performance of each antenna in the device under test separately. The test device of the test system comprises: a signal generator and a second terminal.
The signal generator is connected with the selector switch and used for generating a test signal and sending the test signal to the antenna coupling plate in an open state. The second terminal is connected with the signal generator and used for controlling the power of the test signal generated by the signal generator, the second terminal is connected with the to-be-tested element and used for analyzing the receiving performance of the antenna according to the signal received by the antenna connected with the antenna coupling plate in the opening state and the power of the test signal generated by the signal generator, and the second terminal is connected with the selector switch and used for controlling the selector switch to switch the working state of each antenna coupling plate.
It can be understood that the second terminal is connected with the switch to control the switch to switch the working state of each antenna coupling board, the signal generator is connected with the switch to generate a test signal and send the test signal to the antenna coupling board in the on state, the second terminal is further connected with the signal generator to control the power of the test signal generated by the signal generator, and the receiving performance of the antenna is analyzed according to the power of the test signal generated by the signal generator and the signal received by the antenna connected with the antenna coupling board in the on state.
It should be noted that the function of the second terminal is similar to that of the first terminal, and the first terminal and the second terminal may be two terminals independent from each other, or may be on the same terminal, so as to implement the functions of the first terminal and the second terminal.
In one embodiment, the signal generator may be connected to the switch through a radio frequency line.
In one embodiment, the second terminal may be connected to the signal generator via a universal interface bus or a universal serial bus or a network cable.
In one embodiment, the second terminal may be connected to the dut via an RJ45 cable.
In one embodiment, the switch may be a radio frequency switch.
Illustratively, the radio frequency switch may be of the type MXD 8545A.
It should be understood that the type of the rf switch can be selected according to the number of the antenna coupling boards to be connected, and the connection manner of the rf switch and each antenna coupling board is well known to those skilled in the art and will not be described herein.
In one embodiment, the switch may be connected to the rf switch via a control line.
Based on the same technical concept, the embodiment of the application also provides a test method of the test system, which comprises the following steps:
the method comprises the following steps: and controlling the first terminal to start all the antennas to be tested in the piece to be tested.
Illustratively, the first terminal is controlled to start 3 antennas to be tested in the piece to be tested.
Step two: and respectively controlling the selector switch to switch the antenna coupling plates to be in an open state, and coupling the antennas to be tested in the piece to be tested.
Exemplarily, the antenna coupling plate includes a first antenna coupling plate and a second antenna coupling plate, and the first antenna coupling plate is turned on to couple 3 antennas, and then the second antenna coupling plate is turned on to couple 3 antennas.
Step three: and obtaining signals of all antennas coupled with all the antenna coupling plates according to the testing device, and determining the antenna coupling plate corresponding to the minimum loss in the transmission process of all the antennas according to the signals of all the antennas coupled with all the antenna coupling plates.
Illustratively, signals a1, a2 and A3 of 3 antennas coupled with the first antenna coupling plate and signals B1, B2 and B3 of 3 antennas coupled with the second antenna coupling plate are obtained according to the test apparatus, assuming that a1 is greater than B1, a2 is greater than B2 and A3 is less than B3. And determining that the minimum loss in the transmission process of the first antenna is the first antenna coupling plate, the minimum loss in the transmission process of the second antenna is the first antenna coupling plate, and the minimum loss in the transmission process of the third antenna is the second antenna coupling plate.
Step four: when the performance of each antenna in the to-be-tested element is tested, the to-be-tested element is controlled to transmit signals with the maximum power, and the change-over switch is controlled to switch the antenna coupling plate corresponding to the antenna with the minimum loss to be in an open state, so that a target signal value of each antenna is obtained.
Illustratively, when testing the first antenna, the first antenna coupling plate is selected to be coupled with the first antenna, and a target signal value of the first antenna is obtained. When the second antenna is tested, the first antenna coupling plate is selected to be coupled with the second antenna, and a target signal value of the second antenna is obtained. When the third antenna is tested, the second antenna coupling plate is selected to be coupled with the third antenna, and a target signal value of the third antenna is obtained.
Step five: and determining the test state of each antenna in the test piece according to the target signal value and the maximum power transmitted by the test piece, wherein the test state of the antenna comprises test passing and test failure.
Illustratively, the target signal value of the first antenna is compared with the maximum power transmitted by the element to be tested, and the test state of the first antenna is determined. And comparing the target signal value of the second antenna with the maximum power transmitted by the piece to be tested, and determining the test state of the second antenna. And comparing the target signal value of the third antenna with the maximum power transmitted by the piece to be tested, and determining the test state of the third antenna.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above described embodiments of the test system are merely illustrative, for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. A test system, comprising:
the shielding box is internally provided with an accommodating space for placing a piece to be detected;
the antenna coupling plates are arranged on the inner surface of the shielding box at intervals and are respectively used for being coupled with the antenna on the piece to be tested;
the change-over switch is connected with the antenna coupling plates and is used for switching the working state of each antenna coupling plate, and the working state comprises an opening state and a closing state;
and the testing device is respectively connected with the change-over switch and the piece to be tested and is used for testing the performance of each antenna of the piece to be tested.
2. The test system of claim 1, wherein the test device comprises:
the frequency spectrograph is connected with the selector switch and is used for measuring signals of an antenna coupled with the antenna coupling plate in an open state;
the first terminal is connected with the piece to be detected and is used for controlling the working state of each antenna in the piece to be detected and controlling the power of a signal transmitted by the piece to be detected; the frequency spectrograph is connected with the antenna and used for analyzing the transmitting performance of the antenna according to the power of the antenna signal measured by the frequency spectrograph and the power of the transmitting signal of the piece to be detected; and the switching switch is connected with the switch and is used for controlling the switching switch to switch the working state of each antenna coupling plate.
3. The test system of claim 2, wherein the spectrometer is connected to the switch by a radio frequency line.
4. The test system of claim 2, wherein the first terminal is connected to the spectrometer via a universal interface bus or a universal serial bus or a network cable.
5. The test system of claim 2, wherein the first terminal is connected to the device under test via an RJ45 cable.
6. The test system of claim 2, wherein the test device further comprises:
the signal generator is respectively connected with the selector switch and the first terminal and is used for generating a test signal and sending the test signal to the antenna coupling plate in an open state;
the first terminal is further configured to control the power of the test signal generated by the signal generator, and analyze the receiving performance of the antenna according to the signal received by the antenna connected to the antenna coupling board in the on state and the power of the test signal generated by the signal generator.
7. The test system of claim 1, wherein the test device comprises:
the signal generator is connected with the selector switch and used for generating a test signal and sending the test signal to the antenna coupling plate in an on state;
the second terminal is connected with the signal generator and is used for controlling the power of the test signal generated by the signal generator; the antenna coupling board is connected with the antenna to be tested and used for receiving the test signal generated by the signal generator; and the switching switch is connected with the antenna coupling plate and is used for controlling the switching switch to switch the working state of each antenna coupling plate.
8. The test system of claim 7, wherein the signal generator is connected to the switch by a radio frequency line.
9. The test system of claim 7, wherein the second terminal is connected to the signal generator through a universal interface bus or a universal serial bus or a network cable.
10. The test system of claim 7, wherein the second terminal is connected to the device under test via an RJ45 cable.
11. The test system of any one of claims 1-10, wherein the switch is a radio frequency switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220693056.XU CN217063747U (en) | 2022-03-22 | 2022-03-22 | Test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220693056.XU CN217063747U (en) | 2022-03-22 | 2022-03-22 | Test system |
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| Publication Number | Publication Date |
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| CN217063747U true CN217063747U (en) | 2022-07-26 |
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| CN202220693056.XU Active CN217063747U (en) | 2022-03-22 | 2022-03-22 | Test system |
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| CN (1) | CN217063747U (en) |
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