Tiantong satellite communication module function verification device

Abstract

The utility model discloses a Tiantong satellite communication module function verification device. The Tiantong satellite communication module function verification device comprises a master control module, an audio module, a positioning module and a module switching module, the main control module is connected with the audio module and the positioning module; the tested module is connected with the audio module, and the main control module is connected with the tested module through the module switching module; the main control module is used for generating a control signal; the audio module is used for mutually converting an analog audio signal and a digital audio signal according to the control signal; the positioning module is used for generating position signals according to the control signals; the master control module receives the position signal. Through the control signal generated by the main control module, the audio module and the positioning module are controlled to carry out function verification on the tested module, and automatic testing of the communication module is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of Tiantong satellite communications, in particular to a Tiantong satellite communications module function verification device. Background Art

[0002] Satellite communications are communications between radio communication stations on Earth, using satellites as relays. Satellite communications offer significant advantages, including wide communication range, susceptibility to land-based disasters, high reliability, rapid circuit activation, flexible circuit configuration, and the ability to use the same channel in different directions or over different distances. China strongly supports the development of the communications satellite industry. The 13th Five-Year Plan emphasizes the utilization of satellite frequency and orbital resources to accelerate the deployment of a space-based internet, build an integrated space-ground information network, and research new approaches to high-altitude coverage.

[0003] The number of communications satellites in orbit worldwide increased from 30 in 2009 to 1,366 in 2021, a compound annual growth rate of 37.5%. Since 2020, with the large-scale construction of SpaceX's Starlink project, communications satellite launches have experienced explosive growth. In 2021, China's communications satellite launches and in-orbit numbers accounted for 1% and 2% of the global total, respectively, still lagging behind international standards.

[0004] Tiantong satellite communication module is an important technical direction in the field of satellite communication. At present, the main control module in the functional verification device of Tiantong satellite communication module only performs necessary timing drive and does not have the ability to complete the test automatically. It also does not have rich and powerful voice debugging capabilities and the ability to perform combination testing with highly correlated modules such as positioning modules. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a Tiantong satellite communication module function verification device, which can solve the problems in the existing technology that the function verification device does not have automated testing, rich and powerful voice debugging capabilities, and the ability to perform combined testing with the positioning module.

[0006] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0007] A Tiantong satellite communication module function verification device, comprising:

[0008] Main control module, audio module, positioning module and module transfer module;

[0009] The main control module is connected to the audio module and the positioning module; the module under test is connected to the audio module, and the main control module is connected to the module under test through the module adapter module;

[0010] The main control module is used to generate a control signal;

[0011] The audio module is used to convert between analog audio signals and digital audio signals according to the control signal;

[0012] The positioning module is used to generate a position signal according to the control signal; and the main control module receives the position signal.

[0013] Compared with the existing technology, the beneficial effects of the Tiantong satellite communication module function verification device provided by the utility model are as follows: through the control signal generated by the main control module, the audio module and the positioning module are controlled to test the module under test, thereby realizing automatic testing of the communication module, solving the problem in the existing technology that the function verification device cannot automatically test the communication module.

[0014] Optionally, a power module is also included;

[0015] The power module is connected to the main control module, the audio module and the module under test;

[0016] The power supply module is used to provide working power.

[0017] Optionally, the power supply module includes an external power supply unit, a BUCK power supply unit, a first linear regulator, a second linear regulator and a third linear regulator;

[0018] The external power supply unit is connected to the BUCK power supply unit, the BUCK power supply unit is connected to the first linear voltage regulator, the second linear voltage regulator, and the third linear voltage regulator, the first linear voltage regulator is connected to the main control module, the second linear voltage regulator is connected to the audio module, and the third linear voltage regulator is connected to the module under test;

[0019] The external power supply unit is used to access an external power source;

[0020] The BUCK power supply unit is used to step down the voltage of the external power supply to obtain an initial voltage;

[0021] The first linear regulator is used to adjust the initial voltage to a first voltage, where the first voltage is the operating voltage of the main control module;

[0022] The second linear regulator is used to adjust the initial voltage to a second voltage, where the second voltage is the operating voltage of the audio module;

[0023] The third linear regulator is used to adjust the initial voltage to a third voltage, and the third voltage is the operating voltage of the module under test.

[0024] Optionally, the main control module includes a main control chip, a four-wire flow control serial port unit, a first interface, a second interface and a third interface;

[0025] The main control chip is connected to the audio module, the module adapter module, the power module, the four-wire flow control serial port unit, the first interface, the second interface, and the third interface. The four-wire flow control serial port unit is connected to the module under test, and the third interface is connected to the positioning module.

[0026] The main control chip is used to generate the control signal and receive the position signal;

[0027] The four-wire flow control serial port unit is used for communication connection between the main control chip and the module under test;

[0028] The first interface is used to receive input signals from external devices;

[0029] The second interface is used to receive the test signal and send the position signal;

[0030] The control signal is generated according to the input signal and the test signal.

[0031] Optionally, the audio module includes an audio codec chip, a voice acquisition unit, a power amplification unit and a level conversion unit;

[0032] The audio codec chip is connected to the module under test, the voice collection unit, the power amplification unit, and the level conversion unit, and the level conversion unit is connected to the main control chip;

[0033] The audio codec chip is used to convert analog audio signals into digital audio signals, or convert digital audio signals into analog audio signals;

[0034] The voice collection unit is used to collect analog audio signals;

[0035] The power amplification unit is used to amplify the analog audio signal;

[0036] The level conversion unit is used to convert the level of the signal transmitted between the main control chip and the audio codec chip.

[0037] Optionally, the module adapter module includes a fourth interface and a fifth interface;

[0038] The fourth interface is connected to the fifth interface, and the fourth interface is connected to the main control chip; the fifth interface is connected to the module under test.

[0039] Optionally, it further includes an external card slot module, wherein the external card slot module is connected to the module under test;

[0040] The external card slot module is used for connecting an external SIM card to the module under test.

[0041] Optionally, a sixth interface is further included, wherein the sixth interface is connected to the module under test;

[0042] The sixth interface is used to receive a debugging upgrade signal.

[0043] Optionally, the fourth interface is a straight-plug female interface.

[0044] Optionally, the fifth interface is a needle clamping interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is the overall block diagram of the utility model;

[0046] Figure 2 This is a block diagram of the main control module of the present utility model;

[0047] Figure 3 This is a block diagram of the audio module of the present utility model;

[0048] Figure 4 This is a schematic diagram of the structure of the audio codec chip of the present utility model;

[0049] Figure 5 This is a block diagram of the module adapter module of the present invention;

[0050] Figure 6 This is a block diagram of the power module of the present utility model.

[0051] Explanation of the accompanying drawings: 1. Main control module; 101. Main control chip; 102. Four-wire flow control serial port unit; 103. First interface; 104. Second interface; 105. Third interface; 2. Audio module; 201. Audio codec chip; 202. Voice acquisition unit; 203. Power amplifier unit; 204. Level conversion unit; 3. Positioning module; 4. Module adapter module; 401. Fourth interface; 402. Fifth interface; 5. Power module; 501. External power supply unit; 502. BUCK power supply unit; 503. First linear regulator; 504. Second linear regulator; 505. Third linear regulator; 6. External card slot module; 7. Sixth interface; 8. Module under test. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0053] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0054] See also Figure 1 As shown, the utility model provides a Tiantong satellite communication module function verification device, including: a main control module 1, an audio module 2, a positioning module 3, a module adapter module 4, a power module 5, an external card slot module 6 and a sixth interface 7.

[0055] The main control module 1 is connected to the audio module 2 and the positioning module 3; the module under test 8 is connected to the audio module 2, and the main control module 1 is connected to the module under test 8 through the module adapter module 4; the power module 5 is connected to the main control module 1, the audio module 2 and the module under test 8; the external card slot module 6 is connected to the module under test 8; and the sixth interface 7 is connected to the module under test 8.

[0056] The main control module 1 is used to generate a control signal; the audio module 2 is used to convert between analog audio signals and digital audio signals according to the control signal, and the module under test 8 receives the digital audio signal after the analog audio signal is converted by the audio module 2, and sends the digital audio signal to the audio module 2; the positioning module 3 is used to generate a position signal according to the control signal; the main control module 1 receives the position signal; the power supply module 5 is used to provide working power for the function verification device; the external card slot module 6 is used to connect an external SIM card to the module under test 8; the sixth interface 7 is used to receive debugging and upgrade signals.

[0057] Through the control signal generated by the main control module 1, the audio module 2 and the positioning module 3 are controlled to perform functional verification on the module under test 8, thereby realizing automated testing of the communication module, solving the problem in the prior art that the functional verification device cannot automatically test the communication module.

[0058] The Tiantong satellite communication module is mainly used as an auxiliary communication device in a non-public network environment. Almost all Tiantong satellite terminals are equipped with a positioning module, and the antenna often integrates Tiantong and positioning dual frequencies. The integrated positioning function can verify the compatibility of the Tiantong satellite communication module with satellite networks and navigation systems, eliminate potential radio frequency interference problems, and ensure that the module under test 8 can be seamlessly connected with various satellite systems and perform consistently in different positioning systems. In the present utility model, the positioning module 3 and the module under test 8 share a radio frequency antenna. Therefore, the position signal generated by the positioning module 3 is received by the main control module 1, and the position signal is sent to the tester for viewing, so that the main control module 1 can verify the radio frequency performance of the module under test 8 through the position signal, thereby determining whether the simultaneous operation of the positioning module 3 and the module under test 8 will affect the radio frequency performance of the module under test 8, thereby causing the satellite communication effect of the module under test 8 to deteriorate, so as to realize automatic determination of the compatibility of the module under test 8 with satellite networks and navigation systems, eliminate potential radio frequency interference problems, and ensure that the module under test 8 can be seamlessly connected with various satellite systems and perform consistently in different positioning systems.

[0059] By using the external card holder module, the module under test 8 can be connected to an external SIM card, thereby enabling the module under test 8 to perform satellite communication functions.

[0060] The sixth interface 7 is specifically a USB-TypeA interface, which provides a USB2.0 Type-A socket. The firmware upgrade or LOG capture of the module under test 8 can be achieved through the sixth interface 7. By adding the sixth interface 7 to the functional verification baseboard, the debugging and upgrading functions can be integrated into the functional verification device, thereby expanding the usability of the functional verification device.

[0061] See also Figure 2 As shown, the main control module 1 includes a main control chip 101, a four-wire flow control serial port unit 102, a first interface 103, a second interface 104 and a third interface 105; the main control chip 101 is connected to the audio module 2, the module adapter module 4, the power module 5, the four-wire flow control serial port unit 102, the first interface 103, the second interface 104, and the third interface 105, the four-wire flow control serial port unit 102 is connected to the module under test 8, and the third interface 105 is connected to the positioning module 3.

[0062] The main control chip 101 is used to generate control signals; the four-wire flow control serial port unit 102 is used for communication connection between the main control chip 101 and the module under test 8; the first interface 103 is used to receive input signals from external devices; the second interface 104 is used to receive test signals sent by the tester and send position signals to the tester; control signals are generated according to the input signals and test signals; the third interface 105 is used to connect the main control chip 101 and the positioning module 3.

[0063] The main control chip 101 is also used to perform timing control on the module under test 8 , and realize functional control such as power supply, sleep and wake-up, and reset of the module under test 8 .

[0064] The four-wire flow-controlled serial port unit 102 is specifically a four-wire flow-controlled UART bus, which can realize satellite communication functions such as voice, short message, data, etc. based on the AT command set between the main control and the module under test 8.

[0065] The main control module 1 is connected to an external device through the first interface 103, and the external device is used to debug the main control chip 101. Through the first interface 103, the convenience of debugging the main control chip 101 can be improved, so that the function verification device can provide changed conditions when specific test requirements are met.

[0066] The second interface 104 is specifically an RS232-TTL level UASRT interface, and the connection between the functional verification device and the tester is realized through the second interface 104. When the tester sends a test signal, the test signal can be received through the second interface 104, and the test signal can be responded to based on the input signal of the external device, that is, a control signal is generated; it is also used to send the position signal received by the main control chip 101 to the tester for viewing, so that the main control module 1 can verify the radio frequency performance of the module under test 8 through the position signal, thereby determining whether the simultaneous operation of the positioning module 3 and the module under test 8 will affect the radio frequency performance of the module under test 8, thereby causing the satellite communication effect of the module under test 8 to deteriorate, so as to realize automatic determination of the compatibility of the module under test 8 with satellite networks and navigation systems, eliminate potential radio frequency interference problems, and ensure that the module under test 8 can be seamlessly connected with various satellite systems and perform consistently in different positioning systems.

[0067] See also Figure 3 As shown, the audio module 2 includes an audio codec chip 201, a voice collection unit 202, a power amplification unit 203 and a level conversion unit 204; the audio codec chip 201 is connected to the module under test 8, the voice collection unit 202, the power amplification unit 203, and the level conversion unit 204, and the level conversion unit 204 is connected to the main control chip 101.

[0068] The audio codec chip 201 is used to convert analog audio signals into digital audio signals, or convert digital audio signals into analog audio signals; the voice acquisition unit 202 is used to collect voice data that is an analog audio signal; the power amplifier unit 203 is used to amplify the analog audio signal converted by the audio decoding chip 201 from the digital audio signal received by the tested module 8 through the satellite antenna; the level conversion unit 204 is used to convert the signal level transmitted between the main control chip 101 and the audio codec chip 201.

[0069] The voice collection unit 202 is specifically a microphone, which collects the tester's voice data (analog audio signal) through the microphone and transmits the voice data to the audio codec chip 201 to convert the analog audio signal into a digital audio signal, and then sends the converted digital audio signal to the module under test 8; conversely, after receiving the digital audio signal, the module under test 8 sends it to the audio codec chip 201 to convert the digital audio signal into an analog audio signal, and then passes the converted analog audio signal through the power amplifier unit 203 to achieve signal amplification, and plays the audio data sent by the module under test 8 to the audio module 2 through the 3.5mm headphone jack or speaker; the audio codec chip 201 has a high degree of configuration freedom and can be arbitrarily configured by the main control chip 101, providing a prerequisite for in-depth testing of the voice function of the module under test 8. The main control chip 101 determines the acoustic quality of the digital audio signal sent to the module under test 8 after conversion, or the analog audio signal sent to the power amplifier unit 203 for amplification after conversion by freely configuring the function of the audio codec chip 201.

[0070] The operating voltage of the audio codec chip 201 is 1.8V, while the operating voltage of the main control chip 101 is 3.3V. That is, the levels of the signals transmitted between the two are different. Therefore, a level conversion unit 204 is required to convert the signal levels transmitted between the main control chip 101 and the audio codec chip 201 so that signals can be transmitted between the main control chip 101 and the audio codec chip 201, thereby ensuring the normal flow of signals between the devices and avoiding the problem of excessive high voltage damaging low-voltage devices.

[0071] The principle of the function verification device for verifying the voice function of the module under test 8 is as follows:

[0072] After installing the module 8 under test into the function verification device, wait for the module 8 under test to complete network access. After access, you can perform a call test. The module 8 under test can act as the caller or the called party. Take the caller as an example:

[0073] When the called party speaks, the voice data will be transmitted to the module under test 8 via the satellite network and parsed into voice data in a specific format by the RF component. After being processed by the module under test 8, the voice data is output as PCM data in a predetermined format through the PCM interface. After being parsed by the audio codec chip 201, the voice data is played through the headphone jack or speaker.

[0074] When the calling party speaks, the voice data will be collected by the microphone, processed by the audio codec chip 201 and output as PCM data in a predetermined format, which is then transmitted to the called party by the module under test 8 via the satellite network.

[0075] Therefore, the quality of the PCM timing output by the tested module 8 directly determines the voice quality. The tester can keep the configuration of the audio codec chip 201 unchanged to verify the differences in the voice quality of each tested module 8, and finally judge the quality of the tested module 8. At the same time, the tester can also debug the appropriate audio codec chip 201 configuration for the defective module to fix the defect.

[0076] See also Figure 4 As shown, it is a structural diagram of the audio codec chip 201; the audio codec chip 201 has a rich parameter configuration method. The tester can freely configure the parameters and implement configuration changes through the main control. It can perform detailed tests on various PCM formats and obtain the best configuration parameters. Finally, the optimal design of the peripheral circuit related to the voice function of the tested module 8 is obtained. The audio codec chip 201 is a prior art and will not be described in detail here.

[0077] See also Figure 5 As shown, the module adapter module 4 includes a fourth interface 401 and a fifth interface 402; the fourth interface 401 is connected to the fifth interface 402, and the fourth interface 401 is connected to the main control chip 101; the fifth interface 402 is connected to the module under test 8; the fourth interface 401 is a straight-plug female header interface, which can provide 4 PCS 2.54mm, 1*26Pin single-row straight-plug female header; the fifth interface 402 is a pin-clip interface, which is specifically a 2.54mm straight-plug square pin.

[0078] Through the straight-plug female interface and the pin-clip interface provided by the module adapter module 4, the main control module 1 and the module under test 8 are fixedly connected to realize signal transmission between the module under test 8 and the functional verification device, and also make the loading and unloading between the main control module 1 and the module under test 8 simple and quick, greatly reducing the possibility of damage to the functional verification device due to frequent loading and unloading or violent disassembly during mass production testing, and improving the service life and testing efficiency of the functional verification device.

[0079] See also Figure 6 As shown, the power supply module 5 includes an external power supply unit 501, a BUCK power supply unit 502, a first linear voltage regulator 503, a second linear voltage regulator 504 and a third linear voltage regulator 505; the external power supply unit 501 is connected to the BUCK power supply unit 502, the BUCK power supply unit 502 is connected to the first linear voltage regulator 503, the second linear voltage regulator 504, and the third linear voltage regulator 505, the first linear voltage regulator 503 is connected to the main control module 1, the second linear voltage regulator 504 is connected to the audio module 2, and the third linear voltage regulator 505 is connected to the module under test 8.

[0080] The external power supply unit 501 is used to connect to an external power supply; the BUCK power supply unit 502 is used to step down the external power supply to obtain an initial voltage; the first linear regulator 503 is used to adjust the initial voltage to a first voltage, which is the operating voltage of the main control module 1; the second linear regulator 504 is used to adjust the initial voltage to a second voltage, which is the operating voltage of the audio module 2; the third linear regulator 505 is used to adjust the initial voltage to a third voltage, which is the operating voltage of the module under test 8.

[0081] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A Tiantong satellite communication module function verification device, characterized in that: include: Main control module, audio module, positioning module and module transfer module; The main control module is connected to the audio module and the positioning module; The module under test is connected to the audio module, and the main control module is connected to the module under test through the module adapter module; The main control module is used to generate a control signal; The audio module is used to convert between analog audio signals and digital audio signals according to the control signal; The positioning module is used to generate a position signal according to the control signal; and the main control module receives the position signal.

2. The Tiantong satellite communication module function verification device according to claim 1, characterized in that: Also includes a power module; The power module is connected to the main control module, the audio module and the module under test; The power supply module is used to provide working power.

3. The Tiantong satellite communication module function verification device according to claim 2, characterized in that: The power supply module includes an external power supply unit, a BUCK power supply unit, a first linear voltage regulator, a second linear voltage regulator and a third linear voltage regulator; The external power supply unit is connected to the BUCK power supply unit, the BUCK power supply unit is connected to the first linear voltage regulator, the second linear voltage regulator, and the third linear voltage regulator, the first linear voltage regulator is connected to the main control module, the second linear voltage regulator is connected to the audio module, and the third linear voltage regulator is connected to the module under test; The external power supply unit is used to access an external power source; The BUCK power supply unit is used to step down the voltage of the external power supply to obtain an initial voltage; The first linear regulator is used to adjust the initial voltage to a first voltage, where the first voltage is the operating voltage of the main control module; The second linear regulator is used to adjust the initial voltage to a second voltage, where the second voltage is the operating voltage of the audio module; The third linear regulator is used to adjust the initial voltage to a third voltage, and the third voltage is the operating voltage of the module under test.

4. The Tiantong satellite communication module function verification device according to claim 2, characterized in that: The main control module includes a main control chip, a four-wire flow control serial port unit, a first interface, a second interface and a third interface; The main control chip is connected to the audio module, the module adapter module, the power module, the four-wire flow control serial port unit, the first interface, the second interface, and the third interface. The four-wire flow control serial port unit is connected to the module under test, and the third interface is connected to the positioning module. The main control chip is used to generate the control signal and receive the position signal; The four-wire flow control serial port unit is used for communication connection between the main control chip and the module under test; The first interface is used to receive input signals from external devices; The second interface is used to receive the test signal and send the position signal; The control signal is generated according to the input signal and the test signal.

5. The Tiantong satellite communication module function verification device according to claim 4, characterized in that: The audio module includes an audio codec chip, a voice acquisition unit, a power amplifier unit and a level conversion unit; The audio codec chip is connected to the module under test, the voice collection unit, the power amplification unit, and the level conversion unit, and the level conversion unit is connected to the main control chip; The audio codec chip is used to convert analog audio signals into digital audio signals, or convert digital audio signals into analog audio signals; The voice collection unit is used to collect analog audio signals; The power amplification unit is used to amplify the analog audio signal; The level conversion unit is used to convert the level of the signal transmitted between the main control chip and the audio codec chip.

6. The Tiantong satellite communication module function verification device according to claim 4, characterized in that: The module adapter module includes a fourth interface and a fifth interface; The fourth interface is connected to the fifth interface, and the fourth interface is connected to the main control chip; the fifth interface is connected to the module under test.

7. The Tiantong satellite communication module function verification device according to claim 1, characterized in that: It also includes an external card slot module, which is connected to the module under test; The external card slot module is used for connecting an external SIM card to the module under test.

8. The Tiantong satellite communication module function verification device according to claim 1, characterized in that: Also includes a sixth interface, the sixth interface is connected to the module under test; The sixth interface is used to receive a debugging upgrade signal.

9. The Tiantong satellite communication module function verification device according to claim 6, characterized in that: The fourth interface is a straight-plug female interface.

10. The Tiantong satellite communication module function verification device according to claim 6, characterized in that: The fifth interface is a needle clamping interface.

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