CN219245772U

CN219245772U - Consistency testing device

Info

Publication number: CN219245772U
Application number: CN202320070833.XU
Authority: CN
Inventors: 孙思扬; 王培华
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-23
Anticipated expiration: 2033-01-10

Abstract

The utility model provides a consistency testing device, which relates to the technical field of equipment testing, and comprises: satellite signal receiving antenna, satellite signal amplifier, combiner, AP, power divider, variable gain amplifier, measuring antenna, low-loss coaxial line; the satellite signal receiving antenna frame is arranged in an outdoor non-shielding environment and is sequentially connected with the first input ends of the satellite signal amplifier and the combiner through a low-loss coaxial line; the AP is connected with a second input end of the combiner through a low-loss coaxial line; the output end of the combiner is connected with the input end of the power divider through a low-loss coaxial line, and the output end of the power divider is sequentially connected with the variable gain amplifier and the measuring antenna through the low-loss coaxial line. The device has simple architecture and strong expansibility and flexibility, can realize simultaneous test or separate test of satellite navigation performance and WIFI performance of the wireless terminal, and can greatly reduce system construction and test cost under the condition of ensuring test efficiency.

Description

Consistency testing device

Technical Field

The utility model relates to the technical field of equipment testing, in particular to a consistency testing device.

Background

This section is intended to provide a background or context to the embodiments of the utility model that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

Before various wireless communication terminals (for example, smart phones) leave the market, consistency tests of satellite navigation performance and WIFI performance are required.

In the prior art, for satellite navigation performance consistency test, relevant satellite scenes are generally generated based on a vector signal generator, and the satellite navigation performance of a wireless communication terminal to be tested is tested in a conduction and air interface OTA mode respectively; for consistency test of WIFI performance, signaling connection is generally established between a wireless communication comprehensive tester and a terminal to be tested, and the WIFI performance of the wireless communication terminal to be tested is tested in a conduction and over-the-air OTA mode respectively. However, the existing test methods have the following drawbacks: the configuration of satellite navigation signal scenes is relatively complicated; the vector signal generator, the wireless communication comprehensive tester and the darkroom are high in construction cost; the vector signal generator and the wireless communication comprehensive tester have the advantages of limited channel number, poor expansibility, low test efficiency and inapplicability to large-scale test of a production line, and only one terminal is supported by a single test; in addition, the existing test mode can only realize the respective test of satellite navigation performance and WIFI performance, and further reduces the test efficiency.

In view of the foregoing, there is a need for a consistent test solution that overcomes the above-mentioned drawbacks, reduces the test cost, and improves the test efficiency.

Disclosure of Invention

In order to solve the problems existing in the prior art, the utility model provides a consistency testing device, which comprises: satellite signal receiving antenna, satellite signal amplifier, combiner, AP, power divider, variable gain amplifier, measuring antenna, low-loss coaxial line; wherein,,

the satellite signal receiving antenna frame is arranged in an outdoor non-shielding environment and is sequentially connected with the first input ends of the satellite signal amplifier and the combiner through a low-loss coaxial line;

the AP is connected with a second input end of the combiner through a low-loss coaxial line;

the output end of the combiner is connected with the input end of the power divider through a low-loss coaxial line, and the output end of the power divider is sequentially connected with the variable gain amplifier and the measuring antenna through the low-loss coaxial line.

Further, the satellite signal receiving antenna is used for receiving outdoor satellite navigation signals;

wherein, outdoor satellite navigation signal includes: one or more of Beidou satellite navigation signals, GPS signals, galileo satellite navigation signals and Grignard satellite navigation signals.

Further, the satellite signal amplifier is located outdoors and connected with the satellite signal receiving antenna for compensating signal attenuation introduced by the subsequent low-loss coaxial line, the combiner and the power divider.

Further, the combiner is located indoors and is a two-in-one combiner covering the Beidou/GPS/Galileo/Grosvenor frequency band and the WIFI frequency band.

Further, the AP is located indoors and is configured to transmit WIFI wireless signals.

Further, the power divider is located indoors and is a one-two, one-four or one-eight microstrip power divider covering the Beidou/GPS/Galileo/Grosvenor frequency band and the WIFI frequency band;

the power divider supports the number of concurrent test channels through cascade expansion; the power divider adopts a passive power divider or an active power divider.

Furthermore, the variable gain amplifier is positioned indoors and connected with the output ends of the power dividers at all levels, and is used for adjusting the dynamic range of the test signal according to the actual test scene, the test distance and the number of stages of the power dividers.

Further, the measurement antenna is used for transmitting satellite navigation test signals and WIFI test signals indoors, constructing an air interface OTA test environment, and testing satellite navigation performance and WIFI performance of the wireless terminal to be tested.

Further, during testing, the measuring antennas on the relevant test channels are removed, a conduction test environment is built, and satellite navigation performance and WIFI performance of the wireless terminal to be tested are tested.

Further, during testing, the consistency testing device is used for testing satellite navigation performance and WIFI performance of the wireless terminal to be tested respectively or simultaneously.

The consistency testing device provided by the utility model does not need to use complex equipment instruments such as a vector signal generator, a wireless communication comprehensive tester, a darkroom and the like, has simple structure and strong expansibility and flexibility, can realize simultaneous testing or separate testing of satellite navigation performance and WIFI performance of the wireless terminal, can adjust a testing mode according to actual needs, can greatly reduce system construction and testing cost under the condition of ensuring testing efficiency, and provides powerful technical support for testing of the wireless communication terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a consistency testing apparatus according to an embodiment of the present utility model.

FIG. 2 is a schematic diagram of a consistency testing apparatus according to another embodiment of the present utility model.

Reference numerals illustrate:

110: a satellite signal receiving antenna;

120: a satellite signal amplifier;

130: a combiner;

140：AP；

150: a power divider;

160: a variable gain amplifier;

170: a measuring antenna;

180: low-loss coaxial line.

Detailed Description

The principles and spirit of the present utility model will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are presented merely to enable those skilled in the art to better understand and practice the utility model and are not intended to limit the scope of the utility model in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

According to the embodiment of the utility model, a consistency testing device is provided, and relates to the technical field of equipment testing.

The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.

FIG. 1 is a schematic diagram of a consistency testing apparatus according to an embodiment of the present utility model. As shown in fig. 1, the apparatus includes: satellite signal receiving antenna 110, satellite signal amplifier 120, combiner 130, AP 140, power divider 150, variable gain amplifier 160, measurement antenna 170, low-loss coaxial line 180; wherein,,

the satellite signal receiving antenna 110 is erected in an outdoor non-shielding environment and is sequentially connected with the first input ends of the satellite signal amplifier 120 and the combiner 130 through the low-loss coaxial line 180;

the AP 140 is connected to a second input of the combiner 130 via a low-loss coaxial line 180;

the output end of the combiner 130 is connected to the input end of the power divider 150 through a low-loss coaxial line 180, and the output end of the power divider 150 is sequentially connected to the variable gain amplifier 160 and the measurement antenna 170 through the low-loss coaxial line 180.

The consistency testing device provided by the utility model has the advantages of simple architecture, strong expansibility and flexibility, and capability of realizing simultaneous testing or separate testing of satellite navigation performance and WIFI performance of the wireless terminal, and greatly reducing the system construction and testing cost under the condition of ensuring the testing efficiency.

In one embodiment, the satellite signal receiving antenna 110 is configured to receive outdoor satellite navigation signals;

In one embodiment, the satellite signal amplifier 120 is located outdoors and is connected to the satellite signal receiving antenna 110 to compensate for signal attenuation introduced by the subsequent low-loss coaxial line 180, the combiner 130, and the power divider 150.

In one embodiment, the combiner 130 is located indoors and is a two-in-one combiner covering the Beidou/GPS/Galileo/Gelnas frequency bands and the WIFI frequency band.

In one embodiment, AP 140 is located indoors for transmitting WIFI wireless signals.

In one embodiment, the power divider 150 is located indoors and is a one-in-two, one-in-four or one-in-eight microstrip power divider covering the Beidou/GPS/Galileo/Gelnas frequency band, and the WIFI frequency band;

the power divider 150 can extend the number of supported concurrent test channels by cascading; the power divider 150 may be a passive power divider or an active power divider.

In one embodiment, the variable gain amplifier 160 is located indoors and connected to the output terminals of the power dividers 150 at each stage, for adjusting the dynamic range of the test signal according to the actual test scenario, the test distance (path loss) and the number of power divider stages.

In an embodiment, the measurement antenna 170 is configured to transmit a satellite navigation test signal and a WIFI test signal indoors, construct an over-the-air OTA test environment, and test satellite navigation performance and WIFI performance of a wireless terminal to be tested.

In another embodiment, referring to fig. 2, a schematic diagram of a consistency testing apparatus according to another embodiment of the present utility model is shown. As shown in fig. 2, during testing, the measurement antennas on the relevant test channels are removed, a conduction test environment is constructed, and the satellite navigation performance and the WIFI performance of the wireless terminal to be tested are tested.

In an actual application scene, the consistency testing device is used for respectively testing satellite navigation performance and WIFI performance of the wireless terminal to be tested or simultaneously testing the satellite navigation performance and the WIFI performance during testing. Namely, the device can flexibly set the test mode, and the content of the test can be adjusted according to actual needs.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A consistency testing apparatus comprising: a satellite signal receiving antenna (110), a satellite signal amplifier (120), a combiner (130), an AP (140), a power divider (150), a variable gain amplifier (160), a measuring antenna (170) and a low-loss coaxial line (180); wherein,,

the satellite signal receiving antenna (110) is erected in an outdoor non-shielding environment and is sequentially connected with the first input ends of the satellite signal amplifier (120) and the combiner (130) through the low-loss coaxial line (180);

the AP (140) is connected with the second input end of the combiner (130) through a low-loss coaxial line (180);

the output end of the combiner (130) is connected with the input end of the power divider (150) through a low-loss coaxial line (180), and the output end of the power divider (150) is sequentially connected with the variable gain amplifier (160) and the measuring antenna (170) through the low-loss coaxial line (180).

2. The consistency test device according to claim 1, characterized in that the satellite signal receiving antenna (110) is adapted to receive outdoor satellite navigation signals;

3. The consistency test arrangement according to claim 1, characterized in that the satellite signal amplifier (120) is located outdoors and is connected to the satellite signal receiving antenna (110) for compensating signal attenuation introduced by the subsequent low-loss coaxial line (180), combiner (130), power divider (150).

4. The device according to claim 1, wherein the combiner (130) is located indoors and is a two-in-one combiner covering the beidou/GPS/galileo/gnonas band and the WIFI band.

5. The consistency test device according to claim 1, wherein the AP (140) is located indoors for transmitting WIFI wireless signals.

6. The consistency test device according to claim 1, wherein the power divider (150) is located indoors and covers the beidou/GPS/galileo/gnomonas frequency band and one-half, one-quarter or one-eighth microstrip power divider of the WIFI frequency band;

the power divider (150) supports the number of concurrent test channels through cascade expansion; the power divider (150) adopts a passive power divider or an active power divider.

7. The consistency testing device according to claim 1, wherein the variable gain amplifier (160) is located indoors and connected to the output terminals of the power dividers (150) of each stage for adjusting the dynamic range of the test signal according to the actual test scenario, the test distance and the number of power divider stages.

8. The consistency testing device according to claim 1, wherein the measurement antenna (170) is configured to transmit satellite navigation test signals and WIFI test signals indoors, construct an over-the-air OTA test environment, and test satellite navigation performance and WIFI performance of the wireless terminal to be tested.

9. The consistency testing device of claim 1, wherein during testing, the measurement antennas on the relevant test channels are removed to construct a conductive test environment, and the satellite navigation performance and the WIFI performance of the wireless terminal to be tested are tested.

10. The device according to any one of claims 1-9, wherein the device is configured to test the satellite navigation performance and the WIFI performance of the wireless terminal to be tested separately or simultaneously during the testing.