Signal comprehensive testing device

Abstract

The utility model discloses a signal comprehensive testing device which comprises a shell, a first signal generator, a second signal generator, a conversion head, signal attenuators, a signal combiner and a signal distributor are arranged in the shell, the signal combiner is arranged in the center of the shell, the signal attenuators are arranged on the two sides of the signal combiner, and the signal distributor is arranged in the shell. One side of the signal attenuator is connected with one side of the signal combiner, the first signal generator and the second signal generator are arranged at the upper end of the signal combiner corresponding to the signal attenuator, and the first signal generator and the second signal generator are respectively connected with the other side of the signal attenuator through the adapter. And the signal distributor is arranged at the lower end of the signal combiner and is connected with the lower end of the signal combiner. According to the utility model, the positions of the elements in the signal comprehensive test device are arranged according to the connection relation, so that the structural arrangement of the elements is compact, and the size of the signal comprehensive test device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of product performance testing technology, and in particular to a signal comprehensive testing device. Background Technology

[0002] In GPS measurements, static, rapid static, and dynamic measurements all require post-processing to achieve centimeter-level accuracy. RTK real-time differential positioning, on the other hand, is a measurement method that can obtain centimeter-level positioning accuracy in real time in the field. Its emergence has greatly improved the efficiency of field operations. To ensure the stability of the test signal for RTK measurements and improve work efficiency, RTK measuring instruments are tested using a signal integration test device. However, existing signal integration test devices require a large space, and their structural compactness needs to be improved. Summary of the Invention

[0003] This application provides a signal integration testing device. By arranging the components in the signal integration testing device according to their connection relationships, the component structure is compact, reducing the size of the signal integration testing device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a signal integrated testing device, comprising a housing, inside which are arranged a first signal generator, a second signal generator, a converter, a signal attenuator, a signal combiner, and a signal distributor. The signal combiner is located at the center of the housing, and the signal attenuators are located on both sides of the signal combiner. One side of the signal attenuator is connected to one side of the signal combiner. The first signal generator and the second signal generator are located at the upper end of the signal combiner corresponding to the signal attenuators, so the first signal generator and the second signal generator are respectively connected to the other side of the signal attenuator through the converter. The signal distributor is located at the lower end of the signal combiner and is connected to the lower end of the signal combiner.

[0005] Compared with the prior art, the advantages of this utility model are:

[0006] Because two signal generators, a first signal generator and a second signal generator, are provided, and the first and second signal generators are connected to a signal combiner via signal attenuators, and the signal combiner is connected to a signal distributor, the signal combiner is located at the center of the housing. Since there are two signal generators, the first and second signal generators are located on either side of the upper part of the housing. Simultaneously, the signal attenuators are located on either side of the signal combiner for easy connection via adapters. The signal distributor is located at the lower end of the signal combiner and connected to the lower end of the combiner. The terminals of the signal distributor pass through the lower end of the housing and connect to the antenna mount of the RTK measuring instrument. The components in this signal integration testing device are arranged compactly according to their connection relationships, reducing the overall size of the signal integration testing device.

[0007] As an improvement to the housing, the internal casing features a first protrusion corresponding to the signal combiner and second protrusions on both sides corresponding to the signal distributor. The lower end of the signal combiner is embedded in the first protrusion, and the lower end of the signal distributor is embedded in the second protrusion, ensuring that the terminals of the signal combiner and the signal distributor are on the same horizontal plane. Due to the height difference between the signal combiner and the signal distributor, the first and second protrusions are provided, with the lower end of the signal combiner embedded in the first protrusion and the lower end of the signal distributor embedded in the second protrusion. Because the lower ends of the signal combiner and the signal distributor are embedded to different depths, the terminals of the signal combiner and the signal distributor are on the same horizontal plane, facilitating subsequent connection of the signal combiner and the signal distributor, as well as facilitating the positioning and installation of the signal combiner and the signal distributor.

[0008] As an improvement, the interior of the housing has threaded posts protruding from both sides and both ends corresponding to the first signal generator, and third bosses protruding from both sides corresponding to the second signal generator. The lower end of the first signal generator abuts against the upper end of the threaded posts, and both sides and both ends of the first signal generator are threadedly connected to the threaded posts. The second signal generator is embedded inside the third bosses and is arranged on both sides and both ends of the first signal generator through the threaded posts. The third bosses are arranged on both sides of the second signal generator. When both sides and both ends of the first signal generator are threadedly connected to the threaded posts, and the second signal generator is embedded inside the third bosses, there is a certain space between the lower ends of the first and second signal generators and the inner wall of the housing. This facilitates heat dissipation for the first and second signal generators during operation and also facilitates the positioning and installation of the first and second signal generators.

[0009] As an improvement, the first signal generator produces a signal of 868-915MHz, and the second signal generator produces a signal of 410-470MHz. By having both high-frequency and low-frequency signal generators, the device can flexibly handle signals in different frequency ranges and accurately simulate the actual antenna usage environment. Furthermore, integrating two signal generators into one device makes it easier to achieve synchronization and coordination between them. By changing the signal attenuator connected to the first and second signal generators, it is convenient to simulate the usage environment of various antennas.

[0010] As an improvement, the first and second signal generators are connected to their respective converters via coaxial cables, and then their respective converters are connected to the inputs of corresponding signal attenuators. The outputs of their respective signal attenuators are connected to the input of a common signal combiner. The output of the signal combiner is then connected to the input of a signal distributor via a coaxial cable. The signal distributor distributes the signal to the outputs of several signal distributors and connects them to the antenna port of the device under test via extended coaxial cables. Each signal generator is connected to the signal combiner via its own signal attenuator. This design allows for independent attenuation control of each signal to meet different test requirements. By adjusting the attenuation of the attenuators, different signal strength conditions can be simulated, thereby testing the performance of the device under test in different signal environments. The signal combiner combines the signals from the two signal generators into a single output signal. This design not only simplifies the system complexity but also improves signal utilization. The signal combiner facilitates the merging of multiple signal sources, providing convenience for subsequent testing. Attached Figure Description

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0012] Figure 1 This is an exploded view of the structure of a signal integration testing device;

[0013] Figure 2 This is a schematic diagram of the internal structure of the shell;

[0014] Figure 3 This is a schematic diagram of the circuit connections of a signal comprehensive testing device.

[0015] The markings in the above figures are as follows: 1. Housing; 1.1. First boss; 1.2. Second boss; 1.3. Threaded post; 1.4. Third boss; 2. First signal generator; 3. Second signal generator; 4. Converter; 5. Signal attenuator; 6. Signal combiner; 7. Signal distributor. Detailed Implementation

[0016] In this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] like Figures 1 to 2 As shown, a signal integration testing device includes a housing 1. Inside the housing 1 are a first signal generator 2, a second signal generator 3, a converter 4, a signal attenuator 5, a signal combiner 6, and a signal distributor 7. The signal combiner 6 is located at the center of the housing 1, and the signal attenuator 5 is located on both sides of the signal combiner 6. One side of the signal attenuator 5 is connected to one side of the signal combiner 6. The first signal generator 2 and the second signal generator 3 are located at the upper end of the signal combiner 6, corresponding to the signal attenuator 5. Therefore, the first signal generator 2 and the second signal generator 3 are respectively connected to the other side of the signal attenuator 5 through the converter 4. The signal distributor 7 is located at the lower end of the signal combiner 6 and is connected to the signal combiner 6.

[0018] The housing 1 has a first protrusion 1.1 protruding from the inside of the signal combiner 6 and a second protrusion 1.2 protruding from both sides of the signal distributor 7. The lower end of the signal combiner 6 is embedded in the inside of the first protrusion 1.1 and the lower end of the signal distributor 7 is embedded in the inside of the second protrusion 1.2, so that the wiring terminals of the signal combiner 6 and the signal distributor 7 are set on the same horizontal plane.

[0019] Inside the housing 1, threaded posts 1.3 protrude from both sides and both ends of the first signal generator 2, and third bosses 1.4 protrude from both sides of the second signal generator 3. The lower end of the first signal generator 2 abuts against the upper end of the threaded posts 1.3, and both sides and both ends of the first signal generator 2 are threadedly connected to the threaded posts 1.3. The second signal generator 3 is embedded inside the third bosses 1.4.

[0020] The lower end of the first signal generator 2 abuts against the upper end of the threaded post 1.3, and both sides and both ends of the first signal generator 2 are threadedly connected to the threaded post 1.3. Preferably, the first signal generator 2 is an LM130-H1PCBA, and the first signal generator 2 generates a signal of 868-915MHz. The second signal generator 3 is embedded inside the third boss 1.4, and then both sides and both ends of the second signal generator 3 are fixedly connected to the third boss 1.4 by bolts. Preferably, the second signal generator 3 is a CC1200PCBA, and the second signal generator 3 generates a signal of 410-470MHz. The lower end of the signal combiner 6 is embedded in the first... Inside the boss 1.1, preferably, the signal combiner 6 is model ZX10-2-12-S+, and the signal attenuator 5 is disposed on both sides of the signal combiner 6. One side of the signal attenuator 5 is connected to the signal combiner 6, and the other side of the signal attenuator 5 is connected to the first signal generator 2 and the second signal generator 3 through the converter 4. The lower end of the signal distributor 7 is embedded inside the second boss 1.2. Preferably, the signal distributor 7 is model ZFSC-8-43-S+. The lower end of the signal combiner 6 and the upper end of the signal distributor 7 are connected through their respective terminals. The RTK measuring instrument includes an antenna mount, and the lower end of the signal distributor 7 passes through the housing 1 and is connected to the antenna mount under test.

[0021] like Figure 3 As shown, the first signal generator 2 and the second signal generator 3 are respectively connected to their respective converters 4 via coaxial cables, and then their respective converters 4 are connected to the input terminals of their respective signal attenuators 5. The output terminals of their respective signal attenuators 5 are connected to the input terminal of the same signal combiner 6. The output terminal of the signal combiner 6 is connected to the input terminal of the signal distributor 7 via coaxial cables. The signal distributor 7 will distribute the signal to the output terminals of several signal distributors 7 and connect them to the antenna port of the device under test via extended coaxial cables.

[0022] The working process of the signal integration test device includes the following steps:

[0023] S1: The computer software controls the first signal generator 2 and the second signal generator 3 to send signals to the converter 4, and transmits the signals to the corresponding signal attenuator 5 through the converter 4;

[0024] S2: The attenuation value of the transmitted signal is precisely adjusted by the signal attenuator 5 to achieve the required level within a specific range;

[0025] S3: Two signals attenuated by signal attenuator 5 are connected to the input of the same signal combiner 6 via a coaxial cable, combining the two input signals into a composite output signal;

[0026] S4: The composite output signal is transmitted from the output of the signal combiner 6 to the signal distributor 7 via a coaxial cable. The signal distributor 7 distributes the input composite signal to several outputs of the signal distributor 7. Preferably, there are a total of 8 outputs of the signal distributor.

[0027] S5: After the antenna port of the device under test receives the signal from the signal distributor 7, the receiving circuit inside the device will process and analyze the signal to perform the corresponding test.

[0028] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A signal synthesis testing device, characterized in that: The device includes a housing (1), inside which are arranged a first signal generator (2), a second signal generator (3), a converter (4), a signal attenuator (5), a signal combiner (6), and a signal distributor (7). The signal combiner (6) is located at the center of the housing (1), and the signal attenuator (5) is located on both sides of the signal combiner (6). One side of the signal attenuator (5) is connected to one side of the signal combiner (6). The first signal generator (2) and the second signal generator (3) are located at the upper end of the signal combiner (6) corresponding to the signal attenuator (5). Therefore, the first signal generator (2) and the second signal generator (3) are respectively connected to the other side of the signal attenuator (5) through the converter (4). The signal distributor (7) is located at the lower end of the signal combiner (6) and is connected to the signal combiner (6).

2. The signal synthesis testing device according to claim 1, characterized in that: The housing (1) has a first boss (1.1) protruding from the inside of the signal combiner (6) and a second boss (1.2) protruding from both sides of the signal distributor (7). The lower end of the signal combiner (6) is embedded in the inside of the first boss (1.1) and the lower end of the signal distributor (7) is embedded in the inside of the second boss (1.2), so that the terminals of the signal combiner (6) and the signal distributor (7) are set on the same horizontal plane.

3. The signal synthesis testing device according to claim 1, characterized in that: Inside the housing (1), threaded posts (1.3) protrude from both sides and both ends of the first signal generator (2), and third bosses (1.4) protrude from both sides of the second signal generator (3). The lower end of the first signal generator (2) abuts against the upper end of the threaded post (1.3), and both sides and both ends of the first signal generator (2) are threadedly connected to the threaded post (1.3). The second signal generator (3) is embedded inside the third boss (1.4).

4. The signal synthesis testing device according to claim 1, characterized in that: The first signal generator (2) generates a signal of 868-915MHz, and the second signal generator (3) generates a signal of 410-470MHz.

5. The signal synthesis testing device according to claim 1, characterized in that: The first signal generator (2) and the second signal generator (3) are respectively connected to their respective converters (4) via coaxial cables, and then their respective converters (4) are connected to the input of the corresponding signal attenuators (5). The output of each of the signal attenuators (5) is connected to the input of the same signal combiner (6). The output of the signal combiner (6) is connected to the input of the signal distributor (7) via coaxial cables. The signal distributor (7) distributes the signal to the output of several signal distributors (7) and connects to the antenna port of the device under test via extended coaxial cables.

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