Testing device of adjustable real network base station signal for simulating field test

Abstract

The utility model discloses an adjustable real network base station signal testing device for simulating field testing, which comprises an electromagnetic shielding room, a product to be tested is placed in the electromagnetic shielding room, and a signal repeater is arranged outside the electromagnetic shielding room. After the signal repeater improves a base station signal, the base station signal is transmitted into the electromagnetic shielding room through the radio frequency cable to the programmable attenuator; a control computer is arranged in the electromagnetic shielding room, the control computer is connected with the programmable attenuator, regulated and controlled base station signals are transmitted to the transmitting antenna through the radio frequency cable, and the to-be-tested product receives the base station signals transmitted by the transmitting antenna. According to the utility model, base station signals outside the electromagnetic shielding room are amplified through the signal repeater and then are sent into the programmable attenuator, and the control computer is used for adjusting the base station signals input into the programmable attenuator and setting the attenuation value, so that the attenuation value is set according to the size of the base station signals required by a product to be tested; therefore, performance tests such as function test, data transmission and the like of products are carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of signal testing, in particular to a testing device for adjustable real network base station signals used for simulating field testing. Background Art

[0002] The existing technology tests the base station signals to evaluate the signal coverage, quality, capacity and other performance indicators of the base stations of mobile communication networks (such as GSM, LTE, 5G, etc.) in the actual environment. These tests can help network operators, equipment suppliers, engineering technicians or researchers to accurately understand the signal conditions in the base station service area, and optimize the network, troubleshoot or plan new sites accordingly; in addition, such tests can also be applied to different products to infer the product performance of such products under different environmental base signals.

[0003] At present, most of the signal testing devices are used to evaluate the mobile communication network in the actual environment and to understand the signal conditions in the base station service area. They are rarely used to test or verify the performance of products, especially to test the feedback of products on signals in electromagnetic shielding spaces. Therefore, the utility model proposes a test device for an adjustable real network base station signal for simulating field measurement for detection. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A test device for adjustable real network base station signals for simulating field testing, comprising an electromagnetic shielding room, in which a product to be tested is placed, and a signal repeater is arranged outside the electromagnetic shielding room, and after the signal repeater increases the base station signal, it is transmitted to a program-controlled attenuator in the electromagnetic shielding room through a radio frequency cable;

[0006] A control computer is provided in the electromagnetic shielding room. The control computer is connected to the programmable attenuator and adjusts the attenuation value of the base station signal of the programmable attenuator. The adjusted base station signal is transmitted to the transmitting antenna through a radio frequency cable, and the product to be tested receives the base station signal transmitted from the transmitting antenna.

[0007] Preferably, the product to be tested is placed on an operating table.

[0008] Preferably, two operating tables are provided, and the control computer is placed on the other operating table.

[0009] Preferably, the radio frequency cable transmits the base station signal to the inside of the electromagnetic shielding room through a radio frequency interface board, and the signal is connected to the programmable attenuator through the radio frequency interface board.

[0010] Preferably, the transmitting antenna is arranged on the inner top of the electromagnetic shielding room.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the base station signal outside the electromagnetic shielding room is amplified by a signal repeater, and then sent to a programmable attenuator, and the base station signal input into the programmable attenuator is adjusted by a control computer to set the attenuation value, so that the attenuation value is set according to the base station signal size required by the product to be tested, and by effectively regulating the base station signal suitable for the environment, the product's functional testing and data transmission and other performance testing can be carried out.

[0012] In the utility model, the signal attenuation value can be modified in real time by controlling the computer, so that the base station signal received by the product to be tested can be changed within the range of -110dBm≤RSSI≤-50dBm, so as to test or verify the performance of the product to be tested under different base station signals, simulate the product performance and function usage under different actual network signals, and have greater use and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Explanation of the reference numerals in the figure: 1) electromagnetic shielding room; (2) signal repeater; (3) programmable attenuator; (4) transmitting antenna; (5) control computer; (6) product to be tested; (7) operating table: (8) RF cable, (9) RF interface board. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figure 1 , an embodiment provided by the utility model:

[0019] A test device for an adjustable real network base station signal for simulating field testing, comprising an electromagnetic shielding room 1. In order to realize the detection after electromagnetic shielding, a product to be tested 6 is placed in the electromagnetic shielding room 1, and the product to be tested 6 is placed on an operating table 7;

[0020] A signal repeater 2 is provided outside the electromagnetic shielding room 1. After the signal repeater 2 increases the base station signal, it is transmitted to the program-controlled attenuator 3 in the electromagnetic shielding room 1 through the radio frequency cable 8.

[0021] The electromagnetic shielding room 1 is provided with a control computer 5, see attached Figure 1 The control computer 5 is also installed on the operating table 7, which is installed on an operating table 7 different from the product to be tested 6. The control computer 5 is connected to the programmable attenuator 3 and adjusts the attenuation value of the base station signal of the programmable attenuator 3; wherein, the RF cable 8 transmits the base station signal to the inside of the electromagnetic shielding room 1 through the RF interface board 9, and the signal is connected to the programmable attenuator 3 through the RF interface board 9. The regulated base station signal is transmitted to the transmitting antenna 4 through the RF cable 8. In order to facilitate the better reception of the signal of the transmitting antenna 4, the transmitting antenna 4 is arranged on the inner top of the electromagnetic shielding room 1, and the product to be tested 6 receives the base station signal transmitted from the transmitting antenna 4.

[0022] In specific use, the implementation principle of the test is:

[0023] (1) The signal repeater 2 increases the gain of the actual network base station signal (2G, 3G, 4G, 5G signals of China Unicom, China Telecom or China Mobile) outside the electromagnetic shielding room by 50-70 dB, amplifies the base station signal, and connects the RF interface board 9 to the programmable attenuator 3 through the RF cable 8.

[0024] (2) The control computer 5 controls the programmable attenuator 3 to set the attenuation value according to the base station signal size required by the product to be tested 6.

[0025] (3) After being attenuated by the programmable attenuator 3 , the base station signal is transmitted to the transmitting antenna 4 on the top of the inner side of the electromagnetic shielding room 1 through the radio frequency cable 8 , and then transmitted through the transmitting antenna 4 .

[0026] (4) The product to be tested 6 receives the actual network base station signal transmitted by the transmitting antenna 4 and performs functional tests and data transmission and other performance tests.

[0027] By controlling the computer 5, the signal attenuation value can be modified in real time, so that the base station signal received by the product to be tested 6 (prototype) can be changed within the range of -110dBm≤RSSI≤-50dBm, so as to test or verify the performance of the product to be tested 6 under different base station signals and simulate the product performance and function usage under different actual network signals.

[0028] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A test device for adjustable real network base station signal for simulating field test, characterized in that: The invention comprises an electromagnetic shielding room (1), wherein a product to be tested (6) is placed in the electromagnetic shielding room (1), and a signal repeater (2) is arranged outside the electromagnetic shielding room (1), wherein the signal repeater (2) increases the base station signal and transmits the signal to a program-controlled attenuator (3) in the electromagnetic shielding room (1) through a radio frequency cable (8); The electromagnetic shielding room (1) is provided with a control computer (5), the control computer (5) is connected to the programmable attenuator (3) and adjusts the attenuation value of the base station signal of the programmable attenuator (3), the adjusted base station signal is transmitted to the transmitting antenna (4) via a radio frequency cable (8), and the product to be tested (6) receives the base station signal transmitted from the transmitting antenna (4).

2. The test device for adjustable real network base station signal for simulating field test according to claim 1 is characterized in that: The product to be tested (6) is placed on an operating table (7).

3. The test device for adjustable real network base station signal for simulating field test according to claim 2 is characterized in that: Two operating tables (7) are provided, and the control computer (5) is placed on the other operating table (7).

4. The test device for adjustable real network base station signal for simulating field test according to claim 1 is characterized in that: The radio frequency cable (8) transmits the base station signal to the inside of the electromagnetic shielding room (1) through the radio frequency interface board (9), and the signal is connected to the programmable attenuator (3) through the radio frequency interface board (9).

5. The test device for adjustable real network base station signal for simulating field test according to claim 1 is characterized in that: The transmitting antenna (4) is arranged on the inner top of the electromagnetic shielding room (1).

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