CN220457417U - Testing device of wireless image transmission module - Google Patents
Testing device of wireless image transmission module Download PDFInfo
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- CN220457417U CN220457417U CN202322021619.8U CN202322021619U CN220457417U CN 220457417 U CN220457417 U CN 220457417U CN 202322021619 U CN202322021619 U CN 202322021619U CN 220457417 U CN220457417 U CN 220457417U
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 230000005540 biological transmission Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model belongs to the technical field of wireless image transmission module testing, and discloses a testing device of a wireless image transmission module, which comprises a module to be tested, an attenuator, a frequency spectrograph, a network cable and a PC (personal computer), wherein the PC comprises a first PC and a second PC, the module to be tested is the wireless image transmission module, the wireless image transmission module comprises a power interface, a serial port, a network interface and two antenna ports with transmitting and receiving functions, the wireless image transmission module comprises a main port and an auxiliary port respectively, the power interface of the module to be tested is connected with a 24V power supply, the network interface of the module to be tested is connected with the second PC through the network cable, the main port or the auxiliary port of the module to be tested is connected with the attenuator, the attenuator is connected with the RF-IN of the frequency spectrograph, and the frequency spectrograph is connected with the first PC. The utility model can effectively perform the power test, the noise floor test and the bi-directional code rate test of the wireless transmission module, the test device is not limited by the environment, the test process is simple, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of wireless image transmission module testing, and particularly relates to a testing device of a wireless image transmission module.
Background
The wireless line transmission is widely applied to image real-time monitoring in the fields of unmanned aerial vehicles, individual soldiers, public security, fire protection, security protection and the like. Before the wireless transmission module leaves the factory again, functional tests are carried out, including testing the transmitting power of the RF module, testing the anti-interference performance of the wireless module, testing the communication distance of the wireless module and the like. When in testing, two wireless image transmission modules are required to be respectively arranged at a far distance to test the attenuation rate of the wireless image transmission modules in the air, and the testing method is limited by the environment, long in testing distance and complex in testing process, engineers need to send and receive signals back and forth to perform data acquisition testing, and the efficiency is low, and time and labor are wasted.
Disclosure of Invention
The utility model aims to provide a testing device of a wireless image transmission module so as to solve the technical problems.
In order to achieve the above purpose, the specific technical scheme of the testing device of the wireless image transmission module of the utility model is as follows:
the testing device of the wireless image transmission module comprises a module to be tested, an attenuator, a frequency spectrograph, a network cable and a PC, wherein the PC comprises a first PC and a second PC, the module to be tested is the wireless image transmission module, the wireless image transmission module comprises a power interface, a serial port, a network interface and two antenna ports with transmitting and receiving functions, namely a main port and an auxiliary port, the power interface of the module to be tested is connected with a 24V power supply, the network interface of the module to be tested is connected with the second PC through the network cable, the main port or the auxiliary port of the module to be tested is connected with the attenuator, the attenuator is connected with the RF-IN of the frequency spectrograph, and the frequency spectrograph is connected with the first PC;
the attenuator is used for air attenuation of the analog signals;
the spectrometer is used for detecting the received power;
the second PC is used for setting the transmitting power parameter of the module to be tested;
the PC is used for displaying the received power parameters of the spectrometer.
Further, the main port and the auxiliary port of the module to be tested are respectively connected with the attenuator, and the main port and the auxiliary port are respectively tested.
Further, the attenuator is a 40dB attenuator.
The system comprises a first PC (personal computer) and a second PC (personal computer), wherein the first PC is connected with a network interface of the first PC through a network cable, the second PC is connected with a main port or a secondary port of a first module to be tested through a radio frequency coaxial cable, a power interface of the first module to be tested is connected with a 24V power supply, and the second PC is connected with the network interface of the first module to be tested through a network cable;
the radio frequency coaxial line is used for prolonging the distance between the modules to be tested;
the PC is used for setting the transmitting power parameter of the reference signal source;
and the PC II is used for displaying the received noise floor parameters of the module to be tested.
Further, the length of the radio frequency coaxial line is 1.5-4m.
Further, the main port and the auxiliary port of the module to be tested are respectively connected with the attenuator, and the main port and the auxiliary port are respectively tested.
The power divider comprises a first power divider and a second power divider, the PC comprises the first PC and the second PC, a network interface of the first module to be tested is connected with the first PC through a network cable, a main port of the first module to be tested is connected with the first attenuator, a secondary port of the first module to be tested is connected with the second attenuator, a network port of the second module to be tested is connected with the second PC through a radio frequency coaxial cable, a network port of the first attenuator and the second attenuator are connected with the second PC through a radio frequency coaxial cable, a network port of the second module to be tested is connected with the third PC through a network cable, a main port of the second module to be tested is connected with the fourth attenuator, a secondary port of the second module to be tested is connected with the fourth attenuator, and the third attenuator and the second attenuator are connected with the second power divider through a radio frequency coaxial cable;
the PC is used for configuring a network transmission mode and displaying a test result of the module to be tested;
the attenuator is used for air attenuation of the analog signals;
the power divider is used for dividing one path of signal energy into two paths of signals for output or combining the two paths of signal energy into one path.
The test circuit of the wireless image transmission module has the following advantages: the utility model can simulate the remote test of the wireless transmission module through the aerial attenuation of the attenuator analog signal, prolong the test distance through the radio frequency coaxial line, avoid signal interference, and effectively perform the power test, the noise floor test and the bidirectional code rate test of the wireless transmission module.
Drawings
FIG. 1 is a schematic diagram of a power test connection of a main port of a module to be tested according to the present utility model;
FIG. 2 is a schematic diagram of a power test connection of a secondary port of a module under test according to the present utility model;
FIG. 3 is a schematic diagram of a noise floor test connection of a main port of a module to be tested according to the present utility model;
FIG. 4 is a schematic diagram of a noise floor test connection of a secondary port of a module to be tested according to the present utility model;
fig. 5 is a schematic diagram of a bidirectional code rate test connection of a module to be tested according to the present utility model.
Detailed Description
For better understanding of the objects, structures and functions of the present utility model, a test circuit of a wireless image transmission module according to the present utility model will be described in further detail with reference to the accompanying drawings.
As shown in FIG. 1, the testing device of the wireless image transmission module comprises a module to be tested, an attenuator, a spectrometer, a network cable and a PC, wherein the PC comprises a first PC and a second PC, the module to be tested is the wireless image transmission module, and the wireless image transmission module comprises a power interface, a serial port, a network interface and two antenna ports with transmitting and receiving functions, namely a main port and an auxiliary port. The power interface of the module to be tested is connected with a 24V power supply, the network interface of the module to be tested is connected with a PC (personal computer) through a network cable, the main port or the auxiliary port of the module to be tested is connected with an attenuator, the attenuator is connected with the RF-IN of the spectrometer, and the spectrometer is connected with the PC I;
the attenuator is a 40dB attenuator and is used for the air attenuation of the analog signals;
the spectrometer is used for detecting the received power;
the second PC is used for setting the transmitting power parameter of the module to be tested;
the PC is used for displaying the received power parameters of the spectrometer.
When the module power test is carried out, the main port of the module to be tested is connected with the attenuator, and the PC enters a webpage configuration interface after the module to be tested is started after power-on, and the PC is sent by using a common instruction. And reading out the main port transmitting power of the module to be tested on the spectrometer.
As shown IN fig. 2, after the transmitting power of the main port is read, the auxiliary port of the module to be tested is connected with the attenuator and then connected with the RF-IN of the spectrometer, and the PC computer enters the web configuration interface after the module to be tested is powered on, and then the PC computer transmits the web configuration interface by using the common command. And reading out the transmitting power of the auxiliary port of the module to be tested on the spectrometer.
As shown in fig. 3, when the module noise floor test is performed, the system further comprises a radio frequency coaxial line, a standard wireless image transmission module is used as a reference signal source, a network interface of the reference signal source is connected with the first PC through a network cable, the reference signal source is connected with an attenuator, the attenuator is connected with a main port of the module to be tested through the radio frequency coaxial line, a power interface of the module to be tested is connected with a 24V power supply, and a network interface of the module to be tested is connected with the second PC through a network cable. The radio frequency coaxial line is used for prolonging the distance between the modules to be tested, and the length is 1.5-4m; the PC is used for setting the transmitting power parameter of the reference signal source; and the PC II is used for displaying the received noise floor parameters of the module to be tested. When testing, the PC enters a webpage configuration interface, and the power of the reference signal source is set to be 40dBm which is output. And the PC reads out the signal-to-noise ratio of the main port of the module to be tested at the moment.
As shown in fig. 4, the attenuator is then connected to the secondary port of the module to be tested through the rf coaxial line, and the signal-to-noise ratio of the secondary port of the module to be tested is read out and the data is recorded. The noise floor value should be less than or equal to-93.
As shown in FIG. 5, when code rate test is performed, the test device of the wireless graph transmission module comprises two modules to be tested, four attenuators, two power splitters, a plurality of radio frequency coaxial lines, two network wires and two PCs, wherein the modules to be tested comprise a first module to be tested and a second module to be tested, the attenuators comprise an attenuator I, an attenuator II, an attenuator III and an attenuator IV, the power splitters comprise a power splitter I and a power splitter II, and the PCs comprise a PC I and a PC II. The network interface of the first module to be tested is connected with the PC through a network cable, the main port of the first module to be tested is connected with the attenuator I, the auxiliary port of the first module to be tested is connected with the attenuator II, the attenuator I and the attenuator II are connected with the power divider I through radio frequency coaxial lines, the network port of the second module to be tested is connected with the PC through a network cable, the main port of the second module to be tested is connected with the attenuator III, the auxiliary port of the second module to be tested is connected with the attenuator IV, the attenuator III and the attenuator IV are connected with the power divider II through radio frequency coaxial lines, and the power divider I and the power divider II are connected through radio frequency coaxial lines.
The PC is used for configuring a network transmission mode and displaying a test result of the module to be tested;
the attenuator is a 40dB attenuator and is used for the air attenuation of the analog signals;
the power divider is used for dividing one path of signal energy into two paths of signals for output or combining the two paths of signal energy into one path.
The main port and the auxiliary port of the module to be tested have bidirectional receiving and transmitting functions.
The radio frequency coaxial line is used for prolonging the distance between the modules to be tested, and the length is 1.5-4m.
During testing, the two modules to be tested are respectively connected with a 24V power supply, the transmission bandwidth is set on the first PC machine through a network performance testing tool, the main port and the auxiliary port of the first module to be tested simultaneously transmit signals, the signals are combined into one path through the first power divider after being attenuated by the first attenuator and the second attenuator, the signals are divided into two paths through the second power divider, the signals are received by the main port and the auxiliary port of the second module to be tested simultaneously, and the code rate received by the second module to be tested is displayed through the second PC machine. On the contrary, the main port and the auxiliary port of the second module to be tested simultaneously transmit signals, two paths of signals are combined into one path through the second power divider after being attenuated by the third attenuator and the fourth attenuator, and then are divided into two paths of signals through the first power divider, and meanwhile, the two paths of signals are received by the main port and the auxiliary port of the second module to be tested, the code rate received by the first module to be tested is displayed through the first PC, and the unidirectional transmission bandwidth is qualified to be more than 85M.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The testing device of the wireless image transmission module comprises a module to be tested, an attenuator, a frequency spectrograph, a network cable and a PC, wherein the PC comprises a first PC and a second PC, the module to be tested is the wireless image transmission module, and comprises a power interface, a serial port, a network interface and two antenna ports with transmitting and receiving functions, namely a main port and an auxiliary port;
the attenuator is used for air attenuation of the analog signals;
the spectrometer is used for detecting the received power;
the second PC is used for setting the transmitting power parameter of the module to be tested;
the PC is used for displaying the received power parameters of the spectrometer.
2. The device for testing a wireless image transmission module according to claim 1, wherein the main port and the auxiliary port of the module to be tested are respectively connected with an attenuator, and the main port and the auxiliary port are respectively tested.
3. The test device of a wireless graphic module of claim 1, wherein the attenuator is a 40dB attenuator.
4. The device for testing the wireless image transmission module according to claim 1, comprising a reference signal source and a radio frequency coaxial line, wherein the reference signal source is a standard wireless image transmission module, a network interface of the reference signal source is connected with a first PC through a network cable, the reference signal source is connected with an attenuator, the attenuator is connected with a main port or a secondary port of a module to be tested through the radio frequency coaxial line, a power interface of the module to be tested is connected with a 24V power supply, and a network interface of the module to be tested is connected with a second PC through a network cable;
the radio frequency coaxial line is used for prolonging the distance between the modules to be tested;
the PC is used for setting the transmitting power parameter of the reference signal source;
and the PC II is used for displaying the received noise floor parameters of the module to be tested.
5. The device for testing a wireless graphic module according to claim 4, wherein the length of the radio frequency coaxial line is 1.5-4m.
6. The device for testing a wireless image transmission module according to claim 4, wherein the main port and the auxiliary port of the module to be tested are respectively connected with the attenuator, and the main port and the auxiliary port are respectively tested.
7. The device for testing the wireless image transmission module according to claim 1, comprising two modules to be tested, four attenuators, two power dividers, a plurality of radio frequency coaxial lines, two network cables and two PCs, wherein the modules to be tested comprise a first module to be tested and a second module to be tested, the attenuators comprise a first attenuator, a second attenuator, a third attenuator and a fourth attenuator, the power dividers comprise a first power divider and a second power divider, the PCs comprise a first PC and a second PC, a network interface of the first module to be tested is connected with the first PC through one network cable, a main port of the first module to be tested is connected with the first attenuator, a secondary port of the first module to be tested is connected with the second attenuator, the first attenuator and the second attenuator are connected with the first power divider through radio frequency coaxial lines, a network port of the second module to be tested is connected with the second PC through one network cable, a main port of the second module to be tested is connected with the third attenuator, a secondary port of the second module to be tested is connected with the fourth attenuator, and the fourth attenuator is connected with the second radio frequency coaxial line through the second power divider;
the PC is used for configuring a network transmission mode and displaying a test result of the module to be tested;
the attenuator is used for air attenuation of the analog signals;
the power divider is used for dividing one path of signal energy into two paths of signals for output or combining the two paths of signal energy into one path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021619.8U CN220457417U (en) | 2023-07-31 | 2023-07-31 | Testing device of wireless image transmission module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021619.8U CN220457417U (en) | 2023-07-31 | 2023-07-31 | Testing device of wireless image transmission module |
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| Publication Number | Publication Date |
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| CN220457417U true CN220457417U (en) | 2024-02-06 |
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| CN202322021619.8U Active CN220457417U (en) | 2023-07-31 | 2023-07-31 | Testing device of wireless image transmission module |
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| CN (1) | CN220457417U (en) |
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- 2023-07-31 CN CN202322021619.8U patent/CN220457417U/en active Active
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