Radio frequency line switching circuit, control box and test system

Abstract

The utility model provides a radio frequency line switching circuit, a control box and a test system, and relates to the technical field of test. The radio frequency line switching circuit comprises a control module, a multi-path radio frequency switch and a power supply module, a communication interface of the control module is connected with an external control source, and an output interface of the control module is connected with a control end of the multi-path radio frequency switch; the power supply module is connected with the control module and the power supply end of the multi-path radio frequency switch. The radio frequency output end of the multi-channel radio frequency switch is used for being connected with a plurality of modules to be tested, and the common input end of the multi-channel radio frequency switch is used for being connected with test equipment. Therefore, in the testing process, a tester does not need to manually replace the module, manpower is liberated, meanwhile, the testing efficiency is improved, and waste of testing resources is avoided.

Description

Technical Field

[0001] The utility model relates to the field of testing technology, and in particular to a radio frequency line switching circuit, a control box and a testing system. Background Art

[0002] With the improvement of testing technology, people's demand for automated testing is becoming more and more urgent.

[0003] Currently, automated testing tools typically only cover the testing content of a single module at a time. For projects with a small number of test cases or short individual tests, manual control is required. During nighttime testing, if testers fail to promptly replace modules after a test is completed, subsequent testing time is wasted, leading to idle resources and reduced equipment utilization.

[0004] Therefore, there is an urgent need for an efficient automatic device for automatically switching modules. Utility Model Content

[0005] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art and provide a radio frequency line switching circuit, a control box and a test system to solve the problems of low test efficiency in the prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] In a first aspect, an embodiment of the present application provides a radio frequency line switching circuit, the radio frequency line switching circuit comprising: a control module, a multi-channel radio frequency switch, and a power supply module;

[0008] The communication interface of the control module is connected to an external control source, and the output interface of the control module is connected to the control end of the multiple RF switches; the power supply module is respectively connected to the control module and the power supply end of the multiple RF switches;

[0009] The RF output ends of the multiple RF switches are respectively used to connect to multiple modules to be tested, and the common input ends of the multiple RF switches are used to connect to test equipment.

[0010] Optionally, the radio frequency line switching circuit further includes: a power switch;

[0011] The power switch is connected to the power supply path of the power module and is used to control the power supply of the power module.

[0012] Optionally, the radio frequency line switching circuit further includes: a plurality of status indication units, and the output interface of the control module is further connected to the plurality of status indication units.

[0013] Optionally, the communication interface is a serial communication interface; and the output interface comprises a plurality of input / output pins.

[0014] Optionally, control terminals of the plurality of radio frequency switches are serial communication interfaces.

[0015] In a second aspect, an embodiment of the present application provides a radio frequency line switching control box, comprising: a box body, and the radio frequency line switching circuit in any one of the first aspect provided above arranged in the box body; the plurality of radio frequency switches in the radio frequency line switching circuit are fixedly arranged on an inner side of a first panel of the box body, and radio frequency output terminals of the plurality of radio frequency switches, a communication interface of a control module and a common input terminal are exposed on an outer side of the first panel.

[0016] Optionally, an input pin of the power supply module, an operation part of the power switch and a display part of the state indicating unit in the radio frequency line switching circuit are exposed on the outer side of the first panel.

[0017] Optionally, the control box further comprises: a heat dissipation device arranged in the box body; two second panels oppositely arranged on the box body are hollow panels, the heat dissipation device is fixedly arranged in the box body at a preset position close to the plurality of radio frequency switches, and the preset position is a position close to any one of the two second panels.

[0018] Optionally, the connection wiring in the radio frequency line switching circuit is embedded in a preset area close to a third panel in the box body, and the third panel is a panel of a bottom of the box body.

[0019] In a third aspect, an embodiment of the present application provides a radio frequency test system, comprising: a plurality of to-be-tested modules, the control box in any one of the second aspect provided above and a test device, the test device is connected to the plurality of common input terminals on the control box, and the plurality of radio frequency output terminals on the control box are connected to the plurality of to-be-tested modules; wherein the plurality of radio frequency output terminals comprise radio frequency output terminals of the plurality of radio frequency switches, and the plurality of common input terminals comprise common input terminals of the plurality of radio frequency switches.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] The application provides a radio frequency line switching circuit, a control box and a test system. The radio frequency line switching circuit comprises a control module, a multi-way radio frequency switch and a power module; a communication interface of the control module is connected with an external control source, and an output interface of the control module is connected with a control end of the multi-way radio frequency switch; the power module is connected with the control module and a power end of the multi-way radio frequency switch respectively; a radio frequency output end of the multi-way radio frequency switch is used for connecting a plurality of test modules, and a common input end of the multi-way radio frequency switch is used for connecting a test device. Therefore, during the test process, the test personnel do not need to manually replace the modules, the manpower is liberated, the test efficiency is improved, and the test resource waste is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 A structural schematic diagram of a radio frequency line switching circuit provided by the embodiment of the present application;

[0024] Figure 2 A structural schematic diagram of another radio frequency line switching circuit provided by the embodiment of the present application;

[0025] Figure 3 A planar structural schematic diagram of a radio frequency line switching control box provided by the embodiment of the present application;

[0026] Figure 4 A structural schematic diagram of a radio frequency test system provided by the embodiment of the present application.

[0027] Icon: 11-control module, 12-radio frequency switch, 13-power module, 14-power switch, 15-state indication unit, 2-test module, 1-control box, 3-test device. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0030] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In addition, if the terms "first", "second" and the like are used, they are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0032] It should be noted that the features in the embodiments of the application can be combined with each other without conflict.

[0033] The radio frequency line switching circuit provided by the embodiments of the application is explained and described as follows by specific examples. Figure 1 The structure diagram of the radio frequency line switching circuit provided by the embodiments of the application.

[0034] As shown in Figure 1 The radio frequency line switching circuit includes a control module 11, a multi-path radio frequency switch 12 and a power module 13.

[0035] The communication interface of the control module 11 is connected to an external control source, and the output interface of the control module 11 is connected to the control end of the multi-path radio frequency switch 12; the power module 13 is connected to the power end of the control module 11 and the multi-path radio frequency switch 12 respectively.

[0036] The radio frequency output end of the multi-path radio frequency switch 12 is used to connect a plurality of to-be-tested modules, and the common input end of the multi-path radio frequency switch is used to connect a test device.

[0037] For example, the control module 11 can be an MCU (Microcontroller Unit, microcontroller unit), and the external control source can be a computer outside the circuit. The communication interface of the control module 11 is connected to the external control source through a USB line. The MCU is built-in with a single-chip microcomputer program, which contains the corresponding relationship between the output interface level and the control instruction. The radio frequency switch 12 is a switch unit that can be controlled, which is not limited here.

[0038] The external control source can send an instruction to turn on / off a certain path of the radio frequency switch 12 to the control module 11, and the control module 11 turns on / off the certain path of the radio frequency switch 12 by controlling the change of the output interface level, thereby realizing the turn on / off of the radio frequency path corresponding to the certain path of the radio frequency switch 12.

[0039] The power module 13 supplies power to the control module 11 and the multi-path radio frequency switch 12 respectively. The power module 13 is also connected to an external power source through its corresponding input pin to obtain power.

[0040] Further, during the radio frequency test, the user connects a plurality of test modules on the radio frequency output end of the multi-path radio frequency switch 12 according to the actual test requirements, and connects the test equipment on the common input end of the multi-path radio frequency switch. Since the test time required by each test module is different, the test time of each test module and the connected radio frequency switch can be input to the external control source. The external control source can control the opening / closing of the radio frequency switch corresponding to each test module according to the test time of each test module and the connected radio frequency switch, thereby starting the test of the test module and stopping the test of the test module. The external control source can control the radio frequency switch corresponding to the current test module to be closed when the test of the current test module is completed, and control the radio frequency switch corresponding to the next test module to be opened, thereby realizing the automatic replacement of the test module. Without the need for the test personnel to control the time and manually replace the module when the current test is completed, the labor cost is reduced, and the time waste during the replacement of the two test modules is also reduced, which is especially obvious at night, thereby greatly improving the test efficiency.

[0041] In the Figure 1 , only one radio frequency switch 12 is used as an example to show that the connection mode of other multi-path radio frequency switches 12 is the same as that of the radio frequency switch 12 in the Figure 1 .

[0042] It should be noted that the present application mainly protects the circuit structure of the radio frequency line switching circuit, and each element in the circuit structure and the connection mode between the elements are all prior art and are not described in detail. The program involved in the embodiment is used to explain the principle of the radio frequency line switching circuit, and is only an example and has no improvement. Even if the radio frequency line switching circuit has other programs built-in, it is also within the protection scope of the present application.

[0043] In summary, in the embodiment, the radio frequency line switching circuit comprises a control module, a multi-path radio frequency switch and a power module; the communication interface of the control module is connected to an external control source, and the output interface of the control module is connected to the control end of the multi-path radio frequency switch; the power module is connected to the power end of the control module and the multi-path radio frequency switch respectively; the radio frequency output end of the multi-path radio frequency switch is used to connect a plurality of test modules, and the common input end of the multi-path radio frequency switch is used to connect test equipment. Thus, during the test, the test personnel do not need to manually replace the module, which liberates the manpower and also improves the test efficiency and avoids the waste of test resources.

[0044] In the above Figure 1 , on the basis of the corresponding embodiment, the present application further provides another radio frequency line switching circuit.Figure 2 Another structure schematic diagram of the radio frequency circuit switching circuit provided by the embodiment of the present application is shown.

[0045] As shown in Figure 2 , the radio frequency circuit switching circuit further comprises a power switch 14.

[0046] The power switch 14 is connected on the power supply path of the power module 13, and is used for controlling the power supply of the power module 13.

[0047] For example, when the radio frequency test is performed, the user can manually press the power switch 14, so that the power module 13 supplies power to other power consumption devices.

[0048] In summary, in the embodiment, the radio frequency circuit switching circuit further comprises a power switch, the power switch is connected on the power supply path of the power module, and is used for controlling the power supply of the power module. Thus, the power switch is arranged, and the user can turn on the entire radio frequency circuit switching circuit.

[0049] Continuing to refer to Figure 2 , the radio frequency circuit switching circuit further comprises a plurality of state indication units 15, and the output interface of the control module 11 is further connected with the plurality of state indication units 15.

[0050] For one output interface of the control module 11, the output interface is connected with one radio frequency switch 12 and one state indication unit 15. The radio frequency switch 12 and the state indication unit 15 connected on the same output interface are in a corresponding relationship. When the output interface outputs a high level to turn on the radio frequency switch 12, the state indication unit 15 is also turned on at the same time. The state indication unit 15 is used for indicating whether the radio frequency switch 12 is turned on.

[0051] In Figure 2 , only one state indication unit 15 is exemplarily shown, and it can be known that the connection mode of the other plurality of state indication units 15 is the same as that of the state indication unit 15 in Figure 1 .

[0052] For example, the state indication unit 15 can emit sound and / or light indication, for example, the state indication unit 15 can be an indicator.

[0053] In summary, in the embodiment, the radio frequency circuit switching circuit further comprises a plurality of state indication units, and the plurality of state indication units are respectively connected between the power supply ends of the plurality of radio frequency switches and the power module. Thus, the state indication units are arranged, and the user can check the turning-on state of the plurality of radio frequency switches.

[0054] In another embodiment of the present application, the communication interface is a serial communication interface; and the output interface comprises a plurality of general-purpose input / output (GPIO) pins.

[0055] In another embodiment of the present application, the control end of the multi-path radio frequency switch is a serial communication interface.

[0056] For example, the serial communication interface is a DB15 input port.

[0057] In the above Figures 1-2 Based on any of the corresponding embodiments, the present application further provides a radio frequency line switching control box. Figure 3 A planar structure schematic diagram of a radio frequency line switching control box provided by an embodiment of the present application is shown.

[0058] As Figure 3 shown, the control box comprises a box body and the radio frequency line switching circuit in any of the above embodiments arranged in the box body; the multi-path radio frequency switch in the radio frequency line switching circuit is fixedly arranged on the inner side of a first panel of the box body, and the radio frequency output end, the common input end of the multi-path radio frequency switch and the communication interface of the control module are exposed on the outer side of the first panel.

[0059] The radio frequency line switching circuit is arranged in the box body, and the logic of the radio frequency line switching circuit has been described in the above embodiments, which will not be repeated here.

[0060] Exposing the radio frequency output end, the common input end of the multi-path radio frequency switch and the communication interface of the control module on the outer side of the first panel facilitates the user to plug the related equipment to the control box.

[0061] The top of the box body is designed as a detachable top cover, which facilitates the maintenance of internal wiring, replacement and addition of devices. At the same time, by assembling two handles on the left and right sides of the first panel of the control box, the overall movement is facilitated.

[0062] In summary, in the present embodiment, the control box comprises a box body and a radio frequency line switching circuit arranged in the box body; the multi-path radio frequency switch in the radio frequency line switching circuit is fixedly arranged on the inner side of a first panel of the box body, and the radio frequency output end, the common input end of the multi-path radio frequency switch and the communication interface of the control module are exposed on the outer side of the first panel. Thus, manual control of the test process is not required, the test efficiency is improved, and the waste of test resources is avoided.

[0063] In the above Figure 3 Based on the corresponding embodiments, in another embodiment of the present application, the input pin of the power module, the operation part of the power switch and the display part of the state indication unit in the radio frequency line switching circuit are exposed on the outer side of the first panel.

[0064] The input pin of the power module, the operation part of the power switch and the display part of the state indication unit are all exposed outside the first panel, facilitating user operation.

[0065] In summary, in the embodiment, the input pin of the power module, the operation part of the power switch and the display part of the state indication unit in the radio frequency circuit switching circuit are all exposed outside the first panel. Thus, the input pin of the power module and the operation part of the power switch are exposed outside the first panel, facilitating the operation of the tester; and the display part of the state indication unit is exposed outside the first panel, facilitating the observation of the tester on the current test progress and the on-off state of each to-be-tested module.

[0066] In the above Figure 3 Based on the corresponding embodiment, in another embodiment of the present application, the control box further comprises a heat dissipation device arranged in the box body.

[0067] The two second panels oppositely arranged on the box body are both hollow panels, and the heat dissipation device is fixedly arranged in the box body at a preset position close to the multi-path radio frequency switch, and the preset position is a position close to any one of the two second panels.

[0068] It should be noted that the heat dissipation device is connected with the power module, and the heat dissipation device starts to work after the power module is turned on, so as to dissipate heat inside the box body.

[0069] For example, the heat dissipation device is a heat dissipation fan.

[0070] In summary, in the embodiment, the control box further comprises a heat dissipation device arranged in the box body; and the two second panels oppositely arranged on the box body are both hollow panels, and the heat dissipation device is fixedly arranged in the box body at a preset position close to the multi-path radio frequency switch, and the preset position is a position close to any one of the two second panels. Thus, the heat dissipation capacity of the box body is improved.

[0071] In the above Figure 3 Based on the corresponding embodiment, in another embodiment of the present application, the connection wiring in the radio frequency circuit switching circuit is embedded in a preset area close to the third panel in the box body, and the third panel is a panel on the bottom of the box body.

[0072] By arranging the connection wiring in the radio frequency circuit switching circuit in the preset area of the third panel, the user can conveniently perform wiring and maintenance.

[0073] In summary, in the embodiment, the connection wiring in the radio frequency circuit switching circuit is embedded in a preset area close to the third panel in the box body, and the third panel is a panel on the bottom of the box body. Thus, the user can conveniently perform wiring and maintenance.

[0074] In the above Figure 3Based on the corresponding embodiments, the embodiments of the present application further provide a radio frequency testing system. Figure 4 A schematic diagram of the structure of a radio frequency testing system provided in an embodiment of the present application.

[0075] like Figure 4 As shown, the radio frequency test system includes: a plurality of modules to be tested 2, a control box 1 according to any one of the above embodiments, and a test device 3.

[0076] The test equipment 3 is respectively connected to a plurality of common input terminals on the control box 1 , and a plurality of radio frequency output terminals on the control box 1 are respectively connected to a plurality of modules 2 to be tested.

[0077] The multiple radio frequency output terminals include radio frequency output terminals of a multi-channel radio frequency switch, and the multiple common input terminals include a common input terminal of a multi-channel radio frequency switch.

[0078] exist Figure 2 In this example, only one module 2 to be tested is used for demonstration. The connection methods of other modules 2 to be tested can be known. Figure 1 The same as the module to be tested 2 in .

[0079] According to actual test requirements, the user connects multiple modules 2 to be tested to the RF output end of the control box 1 and connects the test equipment 3 to the common input end. Since the test time required for each module 2 to be tested is different, the test time of each module 2 to be tested and the connected RF switch can be input into the external control source. The external control source can control the RF switch corresponding to each module 2 to be tested to turn on / off according to the test time of each module 2 to be tested and the connected RF switch, thereby starting and stopping the test of the module to be tested. The external control source can control the corresponding RF switch to turn off when the test of the current module to be tested is completed, and control the RF switch of the next module to be tested to turn on, thereby realizing automatic replacement of the module to be tested. There is no need for testers to control time and manually replace the module at the end of the current test, which reduces labor costs and reduces the time wasted in the process of replacing two modules to be tested. The effect is especially obvious during night testing, which greatly improves test efficiency.

[0080] Furthermore, the RF test system also includes: a programmable power supply and a RF cable. The programmable power supply is connected to the multiple modules to be tested and supplies power to the multiple modules to be tested. The RF cable is used to transmit RF signals.

[0081] To sum up, in the embodiment, the radio frequency test system comprises a plurality of test modules, a control box and a test device, the test device is connected with a plurality of common input ends on the control box, and a plurality of radio frequency output ends on the control box are connected with the plurality of test modules; wherein the plurality of radio frequency output ends comprise radio frequency output ends of a multi-path radio frequency switch, and the plurality of common input ends comprise common input ends of the multi-path radio frequency switch. Thus, in the test process, the test personnel do not need to manually replace the modules, the manpower is liberated, the test efficiency is improved, and the test resource waste is avoided.

[0082] It should be noted that each element in the present application and the connection mode between elements are prior art, and are not described in detail, which will not cause unclear situation.

[0083] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A radio frequency line switching circuit, characterized in that: The radio frequency line switching circuit includes: a control module, a multi-channel radio frequency switch and a power supply module; The communication interface of the control module is connected to an external control source, and the output interface of the control module is connected to the control end of the multiple RF switches; the power supply module is respectively connected to the control module and the power supply end of the multiple RF switches; The RF output ends of the multiple RF switches are respectively used to connect to multiple modules to be tested, and the common input ends of the multiple RF switches are used to connect to test equipment.

2. The radio frequency line switching circuit according to claim 1, characterized in that: The radio frequency line switching circuit further includes: a power switch; The power switch is connected to the power supply path of the power module and is used to control the power supply of the power module.

3. The radio frequency line switching circuit according to claim 1, characterized in that: The radio frequency line switching circuit further includes: a plurality of status indication units, and the output interface of the control module is further connected to the plurality of status indication units.

4. The radio frequency line switching circuit according to claim 1, wherein: The communication interface is a serial communication interface; The output interface includes: a plurality of input and output pins.

5. The radio frequency line switching circuit according to claim 1, characterized in that: The control end of the multi-channel radio frequency switch is a serial communication interface.

6. A radio frequency line switching control box, characterized in that: The control box includes: a box body, and the radio frequency circuit switching circuit described in any one of claims 1 to 5 above, which is arranged in the box body; the multi-channel radio frequency switch in the radio frequency circuit switching circuit is fixedly arranged on the inner side of the first panel on the box body, and the radio frequency output terminals, common input terminals and communication interfaces of the control modules of the multi-channel radio frequency switches are all exposed on the outer side of the first panel.

7. The control box according to claim 6, characterized in that: The input pins of the power module in the radio frequency line switching circuit, the operating portion of the power switch and the display portion of the status indication unit are all exposed outside the first panel.

8. The control box according to claim 6, characterized in that: The control box also includes: a heat dissipation device arranged in the box body; the two second panels arranged opposite to each other on the box body are both hollow panels, and the heat dissipation device is fixedly arranged in the box body at a preset position close to the multi-way radio frequency switch, and the preset position is a position close to any one of the two second panels.

9. The control box according to claim 6, characterized in that: The connection wiring in the radio frequency line switching circuit is embedded in a preset area of ​​the box body close to the third panel, and the third panel is a panel at the bottom of the box body.

10. A radio frequency testing system, characterized in that: The RF test system includes: multiple modules to be tested, the control box described in any one of claims 6 to 9 above, and a test device, the test devices are respectively connected to multiple common input terminals on the control box, and the multiple RF output terminals on the control box are respectively connected to multiple modules to be tested; wherein the multiple RF output terminals include: RF output terminals of a multi-way RF switch, and the multiple common input terminals include: common input terminals of multiple RF switches.

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