SiriusXM system testing device with delay control function
By introducing MCU delay circuit and power supply circuit in the SiriusXM system test device, the problem of inaccurate power timing and power supply time simulation in the prior art is solved, and accurate testing of SiriusXM system is achieved, and the reliability and efficiency of test results are improved. .
Patent Information
- Application Number
- CN202411326028.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2024-12-27
AI Technical Summary
When the existing SiriusXM system test device integrates multiple circuits and modules in a compact space, it is difficult to accurately simulate the communication environment, especially in power supply timing and power supply time, resulting in inaccurate test results and reliability problems.
A SiriusXM system test device with delay control function was designed to achieve accurate delay control through the MCU delay circuit, and combined with detection circuit, normally open power supply circuit and delay power supply circuit, ensure the accuracy of power supply timing and power supply time. , including detection circuit, MCU delay circuit, power supply circuit and serial port to USB circuit to ensure the accuracy and reliability of test results.
The SiriusXM system is realized to accurately simulate communication environment, ensuring the accuracy and reliability of test results, especially in power supply timing and power supply time, improving the testing efficiency and equipment compactness.
Smart Images
Figure CN119200478A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of testing devices, and in particular to a SiriusXM system testing device with a delay control function. Background Art
[0002] SiriusXM satellite radio service has been widely used around the world. For in-vehicle multimedia systems, integrating SiriusXM functions has become a trend. Therefore, the demand for testing the SiriusXM system is growing. Due to the complexity of SiriusXM system testing, the design and implementation of integrated test equipment face certain challenges. It is necessary to solve how to integrate multiple circuits and modules in a compact space while ensuring the accuracy and reliability of the test. The demand for SiriusXM system testing is growing, and traditional test methods have limitations. The design and implementation of integrated test equipment face challenges. Precise delay control has become a necessary technical means, and the demand for efficient test processes and reliable test results has become increasingly prominent. Traditional test methods may not accurately simulate the communication environment of the SiriusXM system, especially in terms of power timing and power supply time, which leads to inaccurate test results and reliability issues. Summary of the invention
[0003] The embodiment of the present invention provides a SiriusXM system testing device with a delay control function, aiming to solve the problem of low efficiency of the testing process of the SiriusXM system testing device in the prior art method.
[0004] The embodiment of the present invention discloses a siriusXM system test device with a delay control function, the device comprises a test board and a connection port, the connection port is arranged at one end of the test board and is connected to the signal of a device to be tested equipped with the siriusXM system; a test circuit is arranged on the test board, the test circuit comprises a detection circuit, an MCU delay circuit, a power supply circuit and a serial port to USB circuit, the power supply circuit comprises a normally open power supply circuit and a delayed power supply circuit; the detection circuit comprises a first transistor, a second transistor, a first connection end of the detection circuit, a second connection end of the detection circuit and a third connection end of the detection circuit, the first connection end of the detection circuit is arranged at the connection port, the second connection end of the detection circuit is respectively connected to the first connection end of the MCU delay circuit and the second connection end of the MCU delay circuit, the third connection end of the detection circuit is respectively connected to the first connection end of the normally open power supply circuit and the first connection end of the delayed power supply circuit, the base of the first transistor is connected to the second connection end of the detection circuit The MCU delay circuit is provided with a delay calculation module, the delay calculation module receives the induction signal through the first connection end of the MCU delay circuit, the other end of the delay calculation module outputs a control signal through the second connection end of the MCU delay circuit, and the second connection end of the MCU delay circuit transmits the control signal to the delay power supply circuit through the detection circuit; the serial port to USB circuit comprises a first connection end of the serial port to USB circuit, a second connection end of the serial port to USB circuit and a third connection end of the serial port to USB circuit, the second connection end of the delay power supply circuit of the delay power supply circuit is connected to the first connection end of the serial port to USB circuit, the second connection end of the serial port to USB circuit is connected to the computer end, and the third connection end of the serial port to USB circuit is configured at the connection port and connected to the signal of the device to be tested.
[0005] Furthermore, the device includes an SXM audio module, and a signal connection end of the SXM audio module is configured at the connection port.
[0006] Furthermore, the delayed power supply circuit includes a first anti-reverse diode, the anode of the first anti-reverse diode is connected to the second connection end of the delayed power supply circuit, and the cathode of the first anti-reverse diode is connected to the second connection end of the delayed power supply circuit.
[0007] Furthermore, the normally-open power supply circuit includes a second anti-reverse diode, the anode of the second anti-reverse diode is connected to the first connection end of the normally-open power supply circuit, and the cathode of the second anti-reverse diode is connected to the second connection end of the normally-open power supply circuit.
[0008] Furthermore, the starting voltage of the delayed power supply circuit is set to 3.3V, and the power supply duration of the delayed power supply circuit to the serial port to USB circuit is set to 11S.
[0009] Furthermore, the starting voltage of the detection circuit is set to 9.5V.
[0010] Furthermore, the normally-open power supply circuit includes a first filter module, an input end of the first filter module is connected to a first connection end of the normally-open power supply circuit, and an output end of the first filter module is connected to a second connection end of the normally-open power supply circuit.
[0011] Furthermore, the delayed power supply circuit includes a second filtering module, an input end of the second filtering module is connected to the first connection end of the delayed power supply circuit, and an output end of the second filtering module is connected to the second connection end of the delayed power supply circuit.
[0012] The above test device simplifies the complexity of the test equipment through integrated design, making the entire test process more compact and efficient. The core effect of the SiriusXM system test device is its precise delay control function. Delay control is the key to ensuring the normal communication of the SiriusXM system, especially in terms of power timing and power supply time. The device achieves precise delay control through the MCU delay circuit, solving the power supply time and power-on timing problems of the normal communication connection of the SiriusXM system. This core effect enables the test device to accurately simulate the communication environment of the SiriusXM system, ensuring the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.
[0014] Figure 1 A schematic diagram of the structure of a test board of a SiriusXM system test device with a delay control function provided by an embodiment of the present invention;
[0015] Figure 2 A schematic diagram of the detection circuit structure of a SiriusXM system test device with a delay control function provided by an embodiment of the present invention;
[0016] Figure 3 A schematic diagram of the structure of the MCU delay circuit of the SiriusXM system test device with delay control function provided by an embodiment of the present invention;
[0017] Figure 4 A schematic diagram of the structure of a normally open power supply circuit of a siriusXM system test device with a delay control function provided by an embodiment of the present invention;
[0018] Figure 5A schematic diagram of the structure of a delayed power supply circuit of a SiriusXM system test device with a delay control function provided by an embodiment of the present invention;
[0019] Figure 6 A schematic diagram of the serial port to USB circuit structure of a SiriusXM system test device with a delay control function provided by an embodiment of the present invention.
[0020] Figure Number:
[0021] 1. The first connection terminal of the detection circuit; 2. The second connection terminal of the detection circuit; 3. The third connection terminal of the detection circuit; 4. The first transistor; 5. The second transistor; 21. The first connection terminal of the MCU delay circuit; 22. The second connection terminal of the MCU delay circuit; 31. The first connection terminal of the normally open power supply circuit; 32. The first connection terminal of the delay power supply circuit; 24. The delay calculation module; 41. The first connection terminal of the serial port to USB circuit; 42. The second connection terminal of the serial port to USB circuit; 331. The third connection terminal of the serial port to USB circuit; 231. The first anti-reverse diode; 233. The second anti-reverse diode; 33. The first filter module; 34. The second filter module. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.
[0024] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0025] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0026] like Figures 1 to 6As shown, a siriusXM system test device with a delay control function provided in this embodiment includes a test board and a connection port. The connection port is arranged at one end of the test board and is connected to the signal of the device to be tested equipped with the siriusXM system; a test circuit is arranged on the test board, and the test circuit includes a detection circuit, an MCU delay circuit, a power supply circuit and a serial port to USB circuit. The power supply circuit includes a normally open power supply circuit and a delayed power supply circuit; the detection circuit includes a first transistor 4, a second transistor 5, a first connection end 1 of the detection circuit, a second connection end 2 of the detection circuit and a third connection end 3 of the detection circuit. The first connection end 1 of the detection circuit is arranged at the connection port, the second connection end 2 of the detection circuit is respectively connected to the first connection end 21 of the MCU delay circuit and the second connection end 22 of the MCU delay circuit, the third connection end 3 of the detection circuit is respectively connected to the first connection end 31 of the normally open power supply circuit and the first connection end 32 of the delayed power supply circuit, the base of the first transistor 4 is connected to the second connection end 2 of the detection circuit, and the first transistor 5 is connected to the second connection end 2 of the detection circuit. The collector of the transistor 4 is connected to the first connection terminal 1 of the detection circuit, the base of the second triode 5 is connected to the third connection terminal 3 of the detection circuit, and the collector of the second triode 5 is connected to the first connection terminal 1 of the detection circuit; a delay calculation module 24 is set in the MCU delay circuit, the delay calculation module 24 receives the sensing signal through the first connection terminal 21 of the MCU delay circuit, and the other end of the delay calculation module 24 outputs a control signal through the second connection terminal 22 of the MCU delay circuit, and the second connection terminal 22 of the MCU delay circuit transmits the control signal to the delay power supply circuit through the detection circuit; the serial port to USB circuit includes a first connection terminal 41 of the serial port to USB circuit, a second connection terminal 42 of the serial port to USB circuit and a third connection terminal 331 of the serial port to USB circuit, the second connection terminal of the delay power supply circuit is connected to the first connection terminal 41 of the serial port to USB circuit, the second connection terminal 42 of the serial port to USB circuit is connected to the computer end, and the third connection terminal 331 of the serial port to USB circuit is configured at the connection port and connected to the signal of the device to be tested.
[0027] In actual usage scenarios, the detection circuit detects whether SXM_EN and SXM_POWER meet the requirements; the MCU delay circuit detects the delayed SXM_EN and powers the serial port to USB circuit; the SXM audio circuit inputs audio to the SXM simulation test board; the serial port to USB circuit connects the computer-side SiriusXM simulation software and the machine under test to achieve interactive communication between the PC and the machine.
[0028] like Figure 2In the detection circuit shown, SXM_POWER is required to be greater than 10V for the indicator LED1 to light up. When the second transistor 5 is in the cut-off state, the collector and emitter are not conducting, and LED1 will not light up. When SXM_POWER is 9.5V, the base voltage of the second transistor 5 is 0.8V. At this time, the base voltage 1V is greater than the S0805 turn-on voltage 0.7V. The second transistor 5 is in a saturation state, the collector and emitter are conducting, and the negative voltage of LED1 is pulled down, forming a loop and LED1 lights up. When there is no signal from SXM_EN_1, the first transistor 4 is in the cut-off state, the collector and emitter are not conducting, and LED2 will not light up. When there is a signal from SXM_EN_1, the first transistor 4 is in a saturation state, its collector and emitter are conducting, and the negative voltage of LED2 is pulled down, forming a loop and LED2 lights up. Figure 3 The MCU delay circuit shown in the figure, because SXM_EN controls the serial port to USB power supply, and when SXM does not have a normal communication connection, SXM_EN is always in a high and low level detection communication state cycle of 6S. Because the normal communication of SXM requires 11S to connect, it cannot meet the power supply time and power-on timing of the normal communication connection of SXM. Use the MCU delay circuit as a delay detection to solve this problem. When the MCU delay circuit detects that there is a signal from SXM_EN_1, it is processed by the MCU, and then the MCU delay circuit outputs SXM_EN_2 with a delay of 11S. SXM_EN_2 makes the serial port to USB circuit power supply time reach 11S, which meets the normal communication connection of SXM. After the SXM is connected to normal communication, SXM_EN always maintains a high level. Figure 1 As shown in the working relationship of the entire circuit system, the SXM connection port needs to be connected to audio, SXM_EN, and SXM communication at the same time, and the PC side needs to detect it. The detection result must ensure that the result of the SiriusXM simulation board is consistent, otherwise it will lose its detection and verification function. When the MCU detects that SXM_EN needs to be delayed for 11S to output it, it controls the power supply of U3, and U3 supplies power to the serial port to USB circuit. Only then can the SiriusXM simulation software on the PC side communicate normally with the machine. After normal communication, the audio signal can be tested, otherwise the audio test cannot be tested.
[0029] In summary, the test device simplifies the complexity of the test equipment through integrated design, making the entire test process more compact and efficient. The core effect of the SiriusXM system test device is its precise delay control function. Delay control is the key to ensuring the normal communication of the SiriusXM system, especially in terms of power timing and power supply time. The device achieves precise delay control through the MCU delay circuit, solving the power supply time and power-on timing problems of the normal communication connection of the SiriusXM system. This core effect enables the test device to accurately simulate the communication environment of the SiriusXM system, ensuring the accuracy and reliability of the test results.
[0030] Furthermore, the device includes an SXM audio module, and a signal connection end of the SXM audio module is configured at the connection port.
[0031] Furthermore, the delayed power supply circuit includes a first anti-reverse diode 231, the anode of the first anti-reverse diode 231 is connected to the second connection end of the delayed power supply circuit, and the cathode of the first anti-reverse diode 231 is connected to the second connection end of the delayed power supply circuit.
[0032] Specifically, the core effect of the SiriusXM system test device is further extended to the input and processing of audio signals. By adding the SXM audio module to the test device, the device can not only test the communication function of the SiriusXM system, but also test the processing capability of the audio signal to ensure the performance of the entire system in terms of audio transmission. In addition, the design of the delayed power supply circuit further enhances the functionality and reliability of the device. By using the first anti-reverse diode 231, the delayed power supply circuit can better manage the power supply to ensure that the critical circuit is powered when needed, while preventing the power supply from flowing back into the circuit, thereby protecting the circuit from damage. In summary, the core effect of the SiriusXM system test device lies in its precise delay control function and audio signal processing capability, as well as the power management design of the delayed power supply circuit. These technical features together ensure that the test device can accurately simulate the communication and audio transmission environment of the SiriusXM system, thereby providing reliable and accurate test results.
[0033] Furthermore, the normally open power supply circuit includes a second anti-reverse diode 233, the anode of the second anti-reverse diode 233 is connected to the first connection terminal 31 of the normally open power supply circuit, and the cathode of the second anti-reverse diode 233 is connected to the second connection terminal of the normally open power supply circuit.
[0034] Furthermore, the starting voltage of the delayed power supply circuit is set to 3.3V, and the power supply duration of the delayed power supply circuit to the serial port to USB circuit is set to 11S.
[0035] Furthermore, the starting voltage of the detection circuit is set to 9.5V.
[0036] Furthermore, the normally-open power supply circuit includes a first filter module 33, an input end of the first filter module 33 is connected to the first connection end 31 of the normally-open power supply circuit, and an output end of the first filter module 33 is connected to the second connection end of the normally-open power supply circuit.
[0037] Furthermore, the delayed power supply circuit includes a second filter module 34, an input end of the second filter module 34 is connected to the first connection end 32 of the delayed power supply circuit, and an output end of the second filter module 34 is connected to the second connection end of the delayed power supply circuit.
[0038] Specifically, the first anti-reverse diode 231 and the second anti-reverse diode 233 in the device are used for the normally open power supply circuit and the delayed power supply circuit, respectively, which can prevent the power supply from flowing back into the circuit and protect the circuit from damage. The starting voltage of the delayed power supply circuit is set to 3.3V, which provides a stable power supply for the MCU delay circuit and ensures the accuracy and reliability of the delay calculation module 24. The power supply duration of the delayed power supply circuit to the serial port to USB circuit is set to 11S, which ensures that when the SiriusXM system needs to establish a communication connection, the serial port to USB circuit has sufficient power supply time, thereby ensuring the stability and accuracy of the communication. The starting voltage of the detection circuit is set to 9.5V, which provides a stable power supply for the normal operation of the detection circuit and helps to ensure the accuracy and reliability of the detection circuit. The normally open power supply circuit and the delayed power supply circuit respectively include a first filter module 33 and a second filter module 34, which can reduce noise and interference in the power supply and ensure the stability and purity of the power supply, which is crucial to improving the performance and reliability of the entire test device. These further technical details enhance the device's power protection capabilities, power supply stability, power supply duration control, detection circuit stability, and power purity, further improving the overall performance and reliability of the SiriusXM system test device.
[0039] like Figure 4 The normally open power supply circuit shown in the figure and Figure 5 The delay power supply circuit shown in the figure, the 3.3V power supply process of the MCU delay circuit is: SXM_POWER passes through the first anti-reverse diode 231D1, and then is filtered through the first filter module 33 to the LDO voltage regulator to adjust the output 3.3V of the MCU delay circuit, and supplies power to the MCU delay circuit. The USB power supply process is: SXM_POWER passes through the second anti-reverse diode 233D2, and then is filtered through the second filter module 34 to the LDO voltage regulator to adjust the output VCC+5V, and its output voltage is controlled by SXM_EN_2. When SXM_EN_2 is high, U3 outputs VCC+5V, and when SXM_EN_2 is low, U3 has no output voltage. Figure 6In the serial port to USB circuit shown, the serial ports RX and TX on the machine end can communicate with the computer simulation software through FT232R conversion. The machine end can then operate the SiriusXM function and detect the SiriusXM software functions and hardware performance indicators on the machine end.
[0040] The invention discloses a siriusXM system test device with a delay control function. The device comprises a test board and a connection port. The connection port is arranged at one end of the test board and is connected to the signal of a device to be tested equipped with the siriusXM system. A test circuit is arranged on the test board. The test circuit comprises a detection circuit, an MCU delay circuit, a power supply circuit and a serial port to USB circuit. The power supply circuit comprises a normally open power supply circuit and a delayed power supply circuit. The detection circuit comprises a first transistor 4, a second transistor 5, a first connection end 1 of the detection circuit, a second connection end 2 of the detection circuit and a third connection end 3 of the detection circuit. The first connection end 1 of the detection circuit is arranged at the connection port. The second connection end 2 of the detection circuit is respectively connected to a first connection end 21 of the MCU delay circuit and a second connection end 22 of the MCU delay circuit. The third connection end 3 of the detection circuit is respectively connected to a first connection end 31 of the normally open power supply circuit and a first connection end 32 of the delayed power supply circuit. The base of the first transistor 4 is connected to the second connection end 2 of the detection circuit. The first transistor 5 is connected to the first connection end 31 of the detection circuit and the second connection end 32 of the detection circuit. 4 is connected to the first connection terminal 1 of the detection circuit, the base of the second triode 5 is connected to the third connection terminal 3 of the detection circuit, and the collector of the second triode 5 is connected to the first connection terminal 1 of the detection circuit; a delay calculation module 24 is set in the MCU delay circuit, the delay calculation module 24 receives the sensing signal through the first connection terminal 21 of the MCU delay circuit, and the other end of the delay calculation module 24 outputs a control signal through the second connection terminal 22 of the MCU delay circuit, and the second connection terminal 22 of the MCU delay circuit transmits the control signal to the delay power supply circuit through the detection circuit; the serial port to USB circuit includes a first connection terminal 41 of the serial port to USB circuit, a second connection terminal 42 of the serial port to USB circuit and a third connection terminal 331 of the serial port to USB circuit, the second connection terminal of the delay power supply circuit is connected to the first connection terminal 41 of the serial port to USB circuit, the second connection terminal 42 of the serial port to USB circuit is connected to the computer end, and the third connection terminal 331 of the serial port to USB circuit is configured at the connection port and connected to the signal of the device to be tested.
[0041] The above device is designed to be easy to carry and use, and is particularly suitable for field testing and mobile testing environments. Delay control is a key link in the testing of the SiriusXM system. Accurate delay control is achieved through the MCU delay circuit, ensuring that the communication protocol of the SiriusXM system is correctly executed, avoiding system startup failure or communication errors caused by improper power timing. By distinguishing between the normally open power supply circuit and the delayed power supply circuit, the device can manage power more effectively to ensure that critical circuits are powered only when needed, which not only saves energy but also extends the service life of the equipment. The detection circuit indicates the presence or absence of the power signal through the state change of the transistor, which provides intuitive feedback to the technician and facilitates rapid diagnosis of the system status. The serial port signal of the device under test is converted into a USB signal, so that the test equipment can communicate with the computer end, which is essential for executing complex test scripts and data analysis. Accurate delay control and power management ensure the consistency and repeatability of the test, thereby improving the accuracy of the test results. Since all circuits are integrated on the test board, it becomes easier and more economical to maintain and replace faulty modules. By ensuring the normal function of the SiriusXM in-vehicle multimedia system, the device helps to enhance the listening experience of the end user. The device can promote the development and optimization of SiriusXM related products. With the continuous advancement of technology, the software and hardware of the device can be updated regularly to keep it compatible with the latest SiriusXM system. In addition, with the rapid development of China's automotive electronics research and development technology, the automotive electronics industry is becoming more mature, and Chinese automotive electronics products have gone to the world. Then, in order to improve the functions, performance and user experience of in-vehicle multimedia in various countries around the world, it has become a battleground for major manufacturers. The traditional FM and AM radio radio functions, due to the limitations of the direction and propagation distance of the received signal, have affected the user's listening experience to a certain extent, and the performance in the most important aspect of sound quality is not satisfactory. However, the satellite radio of SiriusXM in the United States can solve the above problems well, and can provide more radio channels and more powerful functions. At present, all satellite radio services of SiriusXM to replace traditional radio radio services must pass the certification test of SiriusXM. Because there is no SiriusXM satellite radio service and certification agency in China, the in-vehicle multimedia developed in China must go to SiriusXM abroad for certification testing before going on the market.Because the SiriusXM simulation test board is needed in the research and development stage to develop and verify the software and hardware of the in-vehicle multimedia SiriusXM functions, and the SiriusXM simulation test board is currently not available in China, it is necessary to apply to the foreign SiriusXM company to purchase the SiriusXM simulation test board. Moreover, the purchase cycle is long and the price is expensive. It is difficult for general domestic companies to find sales channels to purchase the SiriusXM simulation test board, which has caused certain difficulties for most companies in developing SiriusXM functions.
[0042] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.
Claims
1. A SiriusXM system test device with delay control function, characterized in that: The device comprises: A test board and a connection port, wherein the connection port is disposed at one end of the test board and is connected to a signal of a device to be tested equipped with a SiriusXM system; A test circuit is arranged on the test board, and the test circuit includes a detection circuit, an MCU delay circuit, a power supply circuit and a serial port to USB circuit, and the power supply circuit includes a normally open power supply circuit and a delayed power supply circuit; The detection circuit includes a first triode, a second triode, a first connection end of the detection circuit, a second connection end of the detection circuit and a third connection end of the detection circuit, the first connection end of the detection circuit is configured at the connection port, the second connection end of the detection circuit is respectively connected to the first connection end of the MCU delay circuit and the second connection end of the MCU delay circuit, the third connection end of the detection circuit is respectively connected to the first connection end of the normally open power supply circuit and the first connection end of the delayed power supply circuit, the base of the first triode is connected to the second connection end of the detection circuit, the collector of the first triode is connected to the first connection end of the detection circuit, the base of the second triode is connected to the third connection end of the detection circuit, and the collector of the second triode is connected to the first connection end of the detection circuit; A delay calculation module is provided in the MCU delay circuit, and the delay calculation module receives the sensing signal through the first connection end of the MCU delay circuit, and the other end of the delay calculation module outputs a control signal through the second connection end of the MCU delay circuit, and the second connection end of the MCU delay circuit transmits the control signal to the delay power supply circuit through the detection circuit; The serial port to USB circuit includes a first connection end of the serial port to USB circuit, a second connection end of the serial port to USB circuit and a third connection end of the serial port to USB circuit. The second connection end of the delayed power supply circuit is connected to the first connection end of the serial port to USB circuit, the second connection end of the serial port to USB circuit is connected to the computer end, and the third connection end of the serial port to USB circuit is configured at the connection port and connected to the signal of the device to be tested.
2. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The device comprises an SXM audio module, and a signal connection end of the SXM audio module is configured at the connection port.
3. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The delayed power supply circuit includes a first anti-reverse diode, the anode of the first anti-reverse diode is connected to the second connection end of the delayed power supply circuit, and the cathode of the first anti-reverse diode is connected to the second connection end of the delayed power supply circuit.
4. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The normally open power supply circuit includes a second anti-reverse diode, the anode of the second anti-reverse diode is connected to the first connection end of the normally open power supply circuit, and the cathode of the second anti-reverse diode is connected to the second connection end of the normally open power supply circuit.
5. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The starting voltage of the delayed power supply circuit is set to 3.3V, and the power supply duration of the delayed power supply circuit to the serial port to USB circuit is set to 11S.
6. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The starting voltage of the detection circuit is set to 9.5V.
7. The SiriusXM system test device with delay control function according to claim 1, characterized in that: The normally-open power supply circuit includes a first filter module, an input end of the first filter module is connected to a first connection end of the normally-open power supply circuit, and an output end of the first filter module is connected to a second connection end of the normally-open power supply circuit.
8. The SiriusXM system testing device with delay control function according to claim 1, characterized in that: The delayed power supply circuit includes a second filter module, an input end of the second filter module is connected to the first connection end of the delayed power supply circuit, and an output end of the second filter module is connected to the second connection end of the delayed power supply circuit.