Radio station signal receiving sensitivity testing device with protection effect

Abstract

The utility model provides a radio station signal receiving sensitivity testing device with a protection effect. The radio station signal receiving sensitivity testing device comprises a detection table. According to the radio signal receiving sensitivity testing device with the protection effect, the adjusting block is rotated to drive the mounting rod to rotate, the reciprocating thread layer on the surface of the mounting rod is meshed with the clamping plates on the upper side and the lower side of the outer surface to get close to each other or get away from each other, and a signal connecting line is clamped or loosened. After the signal connecting line is inserted into the interface slot, the two clamping plates clamp the two sides of the connecting line through the rubber pads, the signal connecting line is limited, the problem that the signal connecting line is disengaged due to external force dragging is avoided, the assembling stability of the signal connecting line is improved, and the accuracy of test data is improved.

Description

Technical Field

[0001] This utility model relates to the field of radio measurement technology, and in particular to a radio signal receiving sensitivity testing device with protective effect. Background Technology

[0002] Shortwave radio receiver sensitivity is a key indicator of its ability to receive weak signals.

[0003] The radio is placed on the test bench, and the user sets the test frequency band, frequency interval, and modulation mode via the touchscreen; presets the sensitivity threshold and test confidence level; the test program controls the signal generation unit to transmit standard test signals at the set frequency; the signal detection unit collects the output signal of the radio under test in real time and analyzes the signal-to-noise ratio and bit error rate; when SNR≥12dB and BER≤10... -5 At that time, the current signal source output power is recorded as the sensitivity value at that frequency point. The test program automatically generates a sensitivity-frequency curve, marks abnormal frequency points (such as areas where the sensitivity drops by more than 3dB), compares historical test data, identifies the trend of equipment performance changes, and generates a PDF test report, which includes test environment parameters, equipment information, and conclusions.

[0004] Before testing, the radio needs to be connected to the interface unit via a signal connection cable to collect parameters such as the output signal of the radio under test. However, after the signal receiving cable is inserted into the radio interface slot, there is no protective device to protect the receiving cable. There is a problem that the connection cable may fall off due to external force pulling the connection cable, which will affect the test results.

[0005] Therefore, it is necessary to provide a radio signal reception sensitivity testing device with protective effect to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a radio signal receiving sensitivity testing device with protective effect, which solves the problem that after the signal receiving line is connected to the radio interface slot, there is no protective device to protect the receiving line, and the connecting line may fall off due to external force pulling the connecting line, thus affecting the test results.

[0007] To solve the above-mentioned technical problems, this utility model provides a radio signal receiving sensitivity testing device with protective effect, comprising: a testing station;

[0008] An interface device is fixedly installed on one side of the top of the testing platform. A radio body is provided on the front side of the top of the testing platform. Multiple signal connection lines are provided on the surface of the interface device. One end of each signal connection line is fixedly connected to a connector. Multiple interface slots are provided on the rear side of the radio body.

[0009] A protective structure is provided at the center of the top of the testing platform. The protective structure includes a first mounting plate, mounting rods, a second mounting plate, an adjusting block, and clamping plates. The first mounting plate is fixedly installed at the center of the top of the testing platform. Both mounting rods are rotatably installed on both sides of the top of the first mounting plate. The second mounting plate is located at the top of the outer surface of the mounting rods. The adjusting block is fixedly installed at the top of the mounting rods. The two clamping plates are respectively located on the outer surfaces of the two mounting rods. One of the mounting rods has a reciprocating thread layer on its surface. A threaded hole is opened on one side of the clamping plate surface, and the threaded hole is threadedly engaged with the reciprocating thread layer on the outer surface of the mounting rod.

[0010] Preferably, a mounting plate is fixedly installed on the rear side of the testing station, and a signal generating device, a test control device, and a signal detection device are provided on the surface of the mounting plate.

[0011] Preferably, auxiliary equipment is provided on the left side of the testing station.

[0012] Preferably, the surface of the clamping plate is provided with a rubber pad.

[0013] Preferably, the surface of the testing table is provided with a sliding groove, and a reciprocating lead screw is rotatably installed inside the sliding groove, with an adjusting column fixedly installed at one end of the reciprocating lead screw.

[0014] Preferably, threaded blocks are threaded on both sides of the outer surface of the reciprocating lead screw, and a limit plate is fixedly installed on the top of the threaded blocks.

[0015] Preferably, the surface of the limiting plate is provided with a rubber pad.

[0016] Compared with related technologies, the radio signal receiving sensitivity testing device with protective effect provided by this utility model has the following beneficial effects:

[0017] This invention provides a radio signal receiving sensitivity testing device with protective effect. By rotating the adjusting block, the mounting rod rotates. The reciprocating thread layer on the surface of the mounting rod engages with the clamps on the upper and lower sides of the outer surface, which move closer or further apart to clamp or release the signal connection cable. This device has a simple structure and is highly practical. After the signal connection cable is inserted into the interface slot, the two clamps hold the two sides of the connection cable with rubber pads, restricting the signal connection cable and preventing it from coming off due to external force. This improves the stability of the signal connection cable assembly and the accuracy of the test data. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the first embodiment of a radio signal receiving sensitivity testing device with protective effect provided by this utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below;

[0020] Figure 3 for Figure 1 The diagram shows a side view of the testing station.

[0021] Figure 4 for Figure 3 The enlarged schematic diagram at point B is shown below;

[0022] Figure 5 A schematic diagram of the structure of a second embodiment of a radio signal receiving sensitivity testing device with protective effect provided by this utility model;

[0023] Figure 6 for Figure 5 The enlarged schematic diagram at point C is shown.

[0024] The following are the labels in the diagram: 1. Testing platform, 2. Mounting plate, 3. Signal generating equipment, 4. Test control equipment, 5. Signal detection equipment, 6. Interface equipment, 7. Protective structure, 71. First mounting plate, 72. Mounting rod, 73. Second mounting plate, 74. Adjusting block, 75. Clamping plate, 8. Radio body, 9. Auxiliary equipment, 10. Signal connection cable, 11. Connector, 12. Interface groove, 13. Slide groove, 14. Reciprocating lead screw, 15. Adjusting column, 16. Limiting plate, 17. Threaded block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of a radio signal receiving sensitivity testing device with protective effect provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below; Figure 3 for Figure 1 The diagram shows a side view of the testing station. Figure 4 for Figure 3 The enlarged schematic diagram at point B is shown. A radio signal receiving sensitivity testing device with protective effect includes: a testing station 1;

[0028] Interface device 6 is fixedly installed on one side of the top of the test station 1. Radio body 8 is provided on the front side of the top of the test station 1. Multiple signal connection lines 10 are provided on the surface of the interface device 6. One end of each signal connection line 10 is fixedly connected to a connector 11. Multiple interface slots 12 are provided on the rear side of the radio body 8.

[0029] The protective structure 7 is disposed in the middle of the top of the testing table 1. The protective structure 7 includes a first mounting plate 71, a mounting rod 72, a second mounting plate 73, an adjusting block 74, and a clamping plate 75. The first mounting plate 71 is fixedly installed in the middle of the top of the testing table 1. The two mounting rods 72 are rotatably installed on both sides of the top of the first mounting plate 71. The second mounting plate 73 is disposed on the top of the outer surface of the mounting rod 72. The adjusting block 74 is fixedly installed on the top of the mounting rod 72. The two clamping plates 75 are respectively disposed on the outer surface of the two mounting rods 72. The surface of one of the mounting rods 72 is provided with a reciprocating thread layer. A threaded hole is opened on one side of the surface of the clamping plate 75, and the threaded hole is threadedly engaged with the reciprocating thread layer on the outer surface of the mounting rod 72.

[0030] A mounting plate 2 is fixedly installed on the rear side of the testing station 1, and a signal generating device 3, a test control device 4, and a signal detection device 5 are provided on the surface of the mounting plate 2.

[0031] An auxiliary device 9 is provided on the left side of the testing station 1.

[0032] The surface of the clamping plate 75 is provided with a rubber pad.

[0033] A threaded hole is made on the right side of the top of the clamping plate 75, and a sliding hole is made on the left side.

[0034] Two mounting rods 72 are rotatably mounted on both sides of the top of the first mounting plate 71. The outer surface of the mounting rod 72 on the right side is provided with a reciprocating thread layer, which engages with the upper and lower clamping plates 75 on the outer surface. The surface of the mounting rod 72 on the left side is smooth, which restricts the upper and lower clamping plates 75 on the outer surface to slide only through the sliding hole and cannot rotate.

[0035] Signal generating device 3 is electrically connected to test control device 4, and test control device 3 is communicatively connected to signal detection device 5. Interface device 6 is connected to signal generating device 3, test control device 4, and signal detection device 5 respectively. The signal generating unit includes a frequency synthesizer, a power amplifier, and a modulation module. The output range of the frequency synthesizer is 1.6MHz to 30MHz, and the frequency resolution is 1Hz. The test control unit includes an embedded industrial computer and a test program. The test program includes an automatic frequency sweep algorithm and a sensitivity determination algorithm. The sensitivity determination algorithm is based on a signal-to-noise ratio (SNR) ≥ 12dB and a bit error rate (BER). The interface unit includes an RF switching matrix. The RF switching matrix supports parallel testing of at least 8 devices under test, and the switching time is ≤ 10ms. The auxiliary device 9 includes a temperature / humidity sensor and a calibration module. The calibration module has a built-in standard signal source and supports automatic temperature compensation and system error calibration. The signal detection device 5 includes a spectrum analyzer and a bit error rate tester. The spectrum analyzer has an adjustable resolution bandwidth of 10Hz to 3MHz and is a device for detecting the sensitivity of radio signals, which is existing technology.

[0036] The working principle of the radio signal receiving sensitivity testing device with protective effect provided by this utility model is as follows:

[0037] During operation, firstly, the connectors 12 of multiple signal connection cables 10 are respectively connected to the multiple interface slots 12 of the radio body 8. Then, the right adjustment block 74 is rotated. The adjustment block 74 drives the right mounting rod 72 to rotate. The reciprocating thread layer on the surface of the right mounting rod 72 engages with the clamping plates 75 on the upper and lower sides of the outer surface. The two clamping plates 75 engage with the mounting rod 72, bringing them closer or further apart, so that the two clamping plates 75 hold the signal connection cable 10 or release the signal connection cable 10, maintaining the stability of the assembly of the signal connection cable 10.

[0038] Compared with related technologies, the radio signal receiving sensitivity testing device with protective effect provided by this utility model has the following beneficial effects:

[0039] This invention provides a radio signal receiving sensitivity testing device with protective effect. By rotating the adjusting block 74, the mounting rod 72 is rotated. The reciprocating thread layer on the surface of the mounting rod 72 engages with the clamping plates 75 on the upper and lower sides of the outer surface, which move closer or further apart to clamp or release the signal connection cable 10. This device has a simple structure and strong practicality. After the signal connection cable 10 is inserted into the interface slot 12, the two clamping plates 75 clamp the two sides of the connection cable with rubber pads, restricting the signal connection cable 10 and preventing it from coming off due to external force. This improves the stability of the signal connection cable 10 assembly and the accuracy of the test data.

[0040] Second Embodiment

[0041] Please refer to the following: Figure 5 and Figure 6 Based on the first embodiment of this application, which provides a radio signal receiving sensitivity testing device with protective effect, the second embodiment of this application proposes another radio signal receiving sensitivity testing device with protective effect. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0042] Specifically, the second embodiment of this application provides a radio signal receiving sensitivity testing device with protective effect, which differs in that the surface of the testing platform 1 is provided with a sliding groove 13, a reciprocating screw 14 is rotatably installed inside the sliding groove 13, and an adjusting column 15 is fixedly installed at one end of the reciprocating screw 14.

[0043] Both sides of the outer surface of the reciprocating lead screw 14 are threaded with threaded blocks 17, and a limit plate 16 is fixedly installed on the top of the threaded blocks 17.

[0044] The surface of the limiting plate 16 is provided with a rubber pad.

[0045] The working principle of the radio signal receiving sensitivity testing device with protective effect provided by this utility model is as follows:

[0046] During operation, the adjusting column 15 is first rotated to drive the reciprocating screw 14 to rotate. The reciprocating screw 14 rotates and engages the threaded blocks 17 on both sides of the outer surface. The two threaded blocks 17 slide close to each other or slide away from each other inside the slide groove 13.

[0047] The threaded block 17 moves together with the limiting plate 16, so that the two limiting plates 16 move closer to each other and clamp the radio body 8.

[0048] Compared with related technologies, the radio signal receiving sensitivity testing device with protective effect provided by this utility model has the following beneficial effects:

[0049] This invention provides a radio signal receiving sensitivity testing device with protective effect. By rotating the adjusting column 15, the reciprocating screw 14 is driven to rotate. The limiting plates 16 on both sides of the threaded outer surface of the reciprocating screw 14 move closer or further apart, so that the two limiting plates 16 can clamp and restrict the radio body 8 on the test table 1, and also facilitate the disassembly of the radio body 8. This device has a simple structure and strong practicality. It can conveniently limit radios of different models and functions on the test table 1, maintain the stability of the radio body 8 during testing, and prevent the radio body 8 from being affected by external forces.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A radio signal receiving sensitivity testing device with protective effect, characterized in that, include: Testing station; An interface device is fixedly installed on one side of the top of the testing platform. A radio body is provided on the front side of the top of the testing platform. Multiple signal connection lines are provided on the surface of the interface device. One end of each signal connection line is fixedly connected to a connector. Multiple interface slots are provided on the rear side of the radio body. A protective structure is provided at the center of the top of the testing platform. The protective structure includes a first mounting plate, mounting rods, a second mounting plate, an adjusting block, and clamping plates. The first mounting plate is fixedly installed at the center of the top of the testing platform. Both mounting rods are rotatably installed on both sides of the top of the first mounting plate. The second mounting plate is located at the top of the outer surface of the mounting rods. The adjusting block is fixedly installed at the top of the mounting rods. The two clamping plates are respectively located on the outer surfaces of the two mounting rods. One of the mounting rods has a reciprocating thread layer on its surface. A threaded hole is opened on one side of the clamping plate surface, and the threaded hole is threadedly engaged with the reciprocating thread layer on the outer surface of the mounting rod.

2. The radio signal receiving sensitivity testing device with protective effect according to claim 1, characterized in that, A mounting plate is fixedly installed on the rear side of the testing station, and a signal generating device, a test control device, and a signal detection device are provided on the surface of the mounting plate.

3. The radio signal receiving sensitivity testing device with protective effect according to claim 1, characterized in that, Auxiliary equipment is installed on the left side of the testing station.

4. The radio signal receiving sensitivity testing device with protective effect according to claim 1, characterized in that, The surface of the clamp is provided with a rubber pad.

5. The radio signal receiving sensitivity testing device with protective effect according to claim 1, characterized in that, The surface of the testing platform is provided with a sliding groove, and a reciprocating lead screw is rotatably installed inside the sliding groove. An adjusting column is fixedly installed at one end of the reciprocating lead screw.

6. A radio signal receiving sensitivity testing device with protective effect according to claim 5, characterized in that, Both sides of the outer surface of the reciprocating lead screw are threaded with threaded blocks, and a limit plate is fixedly installed on the top of the threaded blocks.

7. A radio signal receiving sensitivity testing device with protective effect according to claim 6, characterized in that, The surface of the limiting plate is provided with a rubber pad.

Images