Multi-protocol parallel earphone radio frequency test system and radio frequency test equipment

Abstract

The utility model provides a multi-protocol parallel earphone radio frequency test system. The system comprises a master control module, an identification module, a radio frequency test module and a data management module. The identification module reads type information of a to-be-tested wireless earphone product and transmits the type information to the main control module, the main control module activates the corresponding radio frequency test module according to the type information, and a radio frequency test channel is multiplexed through time division; a data acquisition card in the data management module downloads preset test parameters from a database server and synchronizes the preset test parameters to a test station, so that the radio frequency test module completes test and uploads data; the radio frequency test module comprises a plurality of wireless radio frequency protocol test units which can respectively receive the activation test instruction so as to execute a multi-protocol parallel radio frequency index test. The system breaks through the limitation of a traditional single protocol test, realizes flexible configuration of a multi-protocol combination test, shares a radio frequency hardware test channel in a time-sharing manner through the main control module, solves the problems of repeated investment and high vacancy rate of traditional production line hardware test equipment, and effectively improves the utilization rate of the test equipment.

Description

Technical Field

[0001] This disclosure relates to the technical field of headphone radio frequency testing, and in particular to a multi-protocol parallel headphone radio frequency testing system and radio frequency testing equipment. Background Technology

[0002] With the rapid development of wireless audio technology, wireless headphones, represented by Bluetooth, Wi-Fi, and 2.4GHz, have gradually become mainstream consumers due to their convenience and high performance. To ensure the stability and reliability of the product's wireless radio frequency signal, rigorous testing of various radio frequency performance parameters of the headphones must be conducted during the research and development and manufacturing process. This verifies whether key parameters such as signal strength, anti-interference ability, and transmission stability meet design expectations, while also monitoring the impact of assembly processes on performance.

[0003] However, current RF testing systems in the industry use different wireless protocols (such as Bluetooth, Wi-Fi, and 2.4G), requiring independent testing equipment and software platforms. This leads to redundant hardware investment and complex production line layouts, and the testing process lacks standardized management. On the other hand, traditional testing systems often adopt a single-machine, single-protocol mode, resulting in high equipment idle rates and poor scalability, making it difficult to meet the needs of multi-protocol parallel testing and severely hindering the intelligent development of factories. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a multi-protocol parallel headphone RF test system and RF test equipment that can improve the utilization rate of test equipment.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A multi-protocol parallel headphone RF test system includes a main control module, an identification module, an RF test module, and a data management module. The main control module is connected to the identification module, the data management module, and the RF test module.

[0007] The identification module is used to read the product type information of the wireless earphone under test and transmit the product type information to the main control module; the main control module is used to activate the corresponding RF test module for testing according to the product type information and to use time-division multiplexing of the RF test channel; the data management module includes a database server and a data acquisition card, the data acquisition card is used to automatically download preset test parameters from the database server and synchronize them to the test station of the RF test module, so that the RF test module can complete the test and generate test data, and simultaneously upload the test data to the database server.

[0008] The radio frequency test module includes multiple wireless radio frequency protocol test units. Each wireless radio frequency protocol test unit is used to receive an activation test command from the main control module to activate the test function of each wireless radio frequency protocol test unit and perform multi-protocol parallel radio frequency index tests on the wireless earphone under test.

[0009] In one embodiment, the multi-protocol parallel headphone RF test system further includes an electromagnetic shielding box, and the identification module is disposed inside the electromagnetic shielding box.

[0010] In one embodiment, the identification module includes a test fixture and a radio frequency identification (RFID) unit, wherein the RFID unit is fixed to the test fixture, and the test fixture is disposed inside the electromagnetic shielding box.

[0011] In one embodiment, the radio frequency identification unit is an RFID identification unit.

[0012] In one embodiment, the radio frequency test module includes at least one of a Bluetooth test unit and a Wi-Fi test unit.

[0013] In one embodiment, the radio frequency test module further includes a BLE test unit.

[0014] In one embodiment, the radio frequency test module further includes a 2.4G test unit.

[0015] In one embodiment, the main control module is a PC host computer.

[0016] In one embodiment, the data management module further includes an FTP server.

[0017] This application also provides an RF test device, including the multi-protocol parallel earphone RF test system described in any embodiment.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] The aforementioned multi-protocol parallel headphone RF test system breaks through the limitations of traditional single-protocol testing by activating multiple test units (such as Bluetooth, Wi-Fi, and 2.4G) of the RF test module in a time-sharing manner through the main control module. This enables flexible configuration for multi-protocol combination testing. Furthermore, by sharing the RF hardware test channel in a time-sharing manner through the main control module, it solves the problem of redundant investment in hardware test equipment and high equipment idle rate caused by the limitation of a single platform in traditional production lines, and effectively improves the utilization rate of test equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a block flowchart of a multi-protocol parallel headphone RF test system according to one embodiment;

[0022] Figure 2 for Figure 1 The flowchart shown is for the data management module.

[0023] Figure 3 for Figure 1 The flowchart shown is of the RF test module. Detailed Implementation

[0024] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0028] like Figures 1 to 3As shown, a multi-protocol parallel headphone RF test system 10 according to an embodiment of the present disclosure includes a main control module 100, an identification module 200, an RF test module 300 and a data management module 400. The main control module 100 is connected to the identification module 200, the data management module 400 and the RF test module 300 respectively.

[0029] The identification module 200 is used to read the product type information of the wireless earphone under test and transmit the product type information to the main control module 100. The main control module 100 is used to activate the corresponding RF test module 300 for testing according to the product type information and to use the RF test channel for time-division multiplexing. The data management module 400 includes a database server and a data acquisition card. The data acquisition card is used to automatically download preset test parameters from the database server and synchronize them to the test station of the RF test module 300 so that the RF test module can complete the test and generate test data, and at the same time upload the test data to the database server.

[0030] The radio frequency test module 300 includes multiple wireless radio frequency protocol test units. Each wireless radio frequency protocol test unit is used to receive an activation test command from the main control module 100 to activate the test function of each wireless radio frequency protocol test unit and perform multi-protocol parallel radio frequency index tests on the wireless earphone under test.

[0031] In this embodiment, during the RF protocol testing process of the wireless earphone, the identification module 200 is placed inside an electromagnetically shielded box. The wireless earphone to be tested is placed in the testing station of the identification module 200, and then the main control module 100 controls the electromagnetically shielded box to automatically close. The identification module 200 obtains the product type information and built-in wireless protocol type of the earphone through a non-contact reading method, and transmits the identified product type information to the main control module 100 in real time. After parsing, the main control module 100 determines the RF protocol combination that the earphone to be tested needs to be tested. Next, the host computer software of the main control module 100 controls the testing process through a state machine mode. According to the protocol type provided by the identification module 200, it controls the data management module 400 to automatically download the preset test parameters that match the protocol type of the earphone to be tested from the database server, and then synchronizes the parameters to the RF test module 300 through the data management module 400 to activate the corresponding wireless RF protocol test unit combination. If both the Bluetooth and Wi-Fi test units need to be activated simultaneously, the host computer software of the main control module 100 can share the RF hardware test channel in a time-sharing manner, thus supporting parallel testing methods such as single-unit, one-to-two, and one-to-many. This solves the problem that each test unit needs to be configured with a set of test equipment in the traditional testing process, avoids redundant investment in test equipment, and improves the utilization rate of test equipment. Furthermore, during the testing process, the raw data generated by each RF test module 300 is transmitted to the data management module 400 in real time. After the test is completed, the system analyzes the test data in real time, automatically compares it with preset standards to identify defective products, determines whether the test has passed, and then automatically stores the defective product information into the database.

[0032] The aforementioned multi-protocol parallel headphone RF test system 10 activates multiple test units (such as Bluetooth, Wi-Fi, and 2.4G) of the RF test module 300 in a time-division manner through the main control module 100, breaking through the limitations of traditional single-protocol testing and realizing flexible configuration for multi-protocol combination testing. Furthermore, through the RF hardware test channel shared by the main control module 100 in a time-division manner, it solves the problem of repeated investment in hardware test equipment and high equipment idle rate caused by the limitation of a single platform in traditional production lines, and effectively improves the utilization rate of test equipment.

[0033] like Figure 1 and Figure 2As shown, in one embodiment, the multi-protocol parallel headphone RF test system 10 further includes an electromagnetic shielding box, and the identification module 200 is disposed inside the electromagnetic shielding box. In this embodiment, when the wireless headphone to be tested is placed at the test station of the identification module 200, the clamps inside the electromagnetic shielding box hold and fix the wireless headphone to be tested, and the main control module 100 sends a command to control the electromagnetic shielding box to automatically close. The body of the electromagnetic shielding box is made of a metal material with high magnetic permeability, which has good electromagnetic shielding performance and can effectively block interference from external electromagnetic waves. When the electromagnetic shielding box is closed, a relatively independent electromagnetic environment is formed inside it. Specifically, when the RF test module performs testing, the test software on the main control module obtains preset test parameters from the database server and sends them to the test instrument, so that the test instrument begins to test the wireless headphone to be tested and collects test data. The test data is analyzed by the test software and then uploaded to the database server for storage, thereby completing the testing and analysis process of the wireless headphone performance parameters. During this process, the shielding box can prevent electromagnetic waves generated during the test from leaking to the outside world, avoiding interference with the surrounding environment and other equipment. At the same time, it can also prevent external electromagnetic waves from interfering with the test signal, thereby ensuring the reliability of the test results.

[0034] like Figure 1 As shown, in one embodiment, the identification module 200 includes a test fixture and a radio frequency identification (RFID) unit, with the RFID unit fixed to the test fixture. In this embodiment, when the wireless earphone to be tested is placed in the test position, the test fixture provides a stable test position for the earphone, ensuring that the earphone is in a suitable test position to guarantee the accuracy of subsequent identification and testing. Simultaneously, the test fixture, within an electromagnetic shielding box, is electrically connected to other modules in the system, providing power and transmitting signals to the earphone, enabling it to function normally for various tests, thereby improving the reliability of the test results. Furthermore, the RFID unit, fixed to the test fixture, immediately activates its non-contact reading function after the wireless earphone to be tested is placed in the designated position on the test fixture. It communicates with the RFID tag built into the earphone by emitting a specific frequency radio frequency signal, thereby obtaining the earphone's product type information and built-in wireless protocol type. The obtained information is transmitted in real time to the main control module 100 for subsequent analysis and decision-making. This process allows for the rapid and accurate acquisition of key earphone information without manual intervention, thereby improving the automation level of the test and reducing the impact of human factors on the test results.

[0035] like Figure 1As shown, in one embodiment, the radio frequency identification unit is an RFID identification unit. In this embodiment, when the test fixture detects that the wireless earphone under test has been placed in a designated position, it sends a start signal to the RFID identification unit. After receiving the start signal, the RFID identification unit begins to emit radio frequency signals and radiates them into the surrounding space through its antenna, forming a radio frequency magnetic field. Since the wireless earphone under test has a built-in RFID tag, the tag is activated when the earphone enters the radio frequency field range of the RFID identification unit. The activated RFID tag modulates its own reflected signal to send the product type information and built-in wireless protocol type data stored in the tag back to the RFID identification unit. After receiving the signal returned by the tag, the RFID identification unit demodulates and decodes the signal to obtain the relevant information of the earphone. The RFID identification unit transmits the information to the main control module 100 in real time through the communication interface. After receiving the information, the main control module 100 parses and processes it to determine the radio frequency protocol combination that the earphone under test needs to be tested. Since the RFID identification unit adopts a non-contact reading method, it avoids direct physical contact with the earphone and reduces the risk of wear and damage to the earphone.

[0036] like Figure 1 and Figure 3 As shown, in one embodiment, the RF test module 300 includes at least one of a Bluetooth test unit and a Wi-Fi test unit. In this embodiment, the main control module 100, based on the headphone product type information transmitted by the identification module 200, determines that the headphone supports both Bluetooth and Wi-Fi protocols, and activates the Bluetooth test unit and the Wi-Fi test unit accordingly. The two test modules are started and initialized, connected to external Bluetooth and Wi-Fi test equipment, and load their respective required test programs, configuration files, and hardware drivers. Simultaneously, the data management module 400 downloads preset test parameters corresponding to the Bluetooth and Wi-Fi protocols from the database server and synchronizes them to the Bluetooth and Wi-Fi test units respectively through the main control module 100. The Bluetooth and Wi-Fi test units start testing in parallel according to a preset timing sequence. During the test, the two test modules collect relevant test data of the headphone's Bluetooth and Wi-Fi components in real time, such as Bluetooth signal strength, audio transmission error rate, Wi-Fi signal strength changes, packet loss rate, etc., and transmit the test data to the data management module 400. The data management module 400 stores and processes Bluetooth and Wi-Fi data separately, and generates test reports.

[0037] like Figure 1As shown, in one embodiment, the RF test module 300 further includes a BLE test unit. In this embodiment, the main control module 100, based on the headphone product type information transmitted by the identification module 200, determines that the headphone supports the BLE protocol and sends an activation command to the BLE test unit. Upon receiving the activation command, the BLE test unit starts and automatically loads the relevant programs and configuration files required for BLE testing, connects to external BLE testing equipment, and initializes its internal RF circuitry and signal processing unit. Simultaneously, the data management module 400 downloads preset test parameters corresponding to the BLE protocol version from the database server, such as the BLE signal transmission power range, connection delay, and data transmission rate. Then, the main control module 100 synchronizes the downloaded preset test parameters to the BLE test unit. The BLE test unit performs a comprehensive test of the BLE function of the wireless headphone under test based on the received test parameters. During the test, the BLE test unit collects various test data from the headphone in real time and transmits the test data to the data management module 400. The data management module 400 stores and processes the data in a unified format, generating a detailed test report to facilitate engineers' analysis and evaluation of the test results. Furthermore, if the headphones support BLE and other wireless protocols (such as Bluetooth and Wi-Fi), the BLE test unit can work in parallel with other RF test units (such as Bluetooth test unit and Wi-Fi test unit) to achieve multi-protocol synchronous testing.

[0038] like Figure 1 As shown, in one embodiment, the RF test module 300 further includes a 2.4G test unit. In this embodiment, when the identification module 200 obtains information through the RFID identification unit that the wireless headset under test supports the 2.4G wireless protocol, the main control module 100 analyzes the information and determines that the 2.4G test unit needs to be activated. It then sends an activation command to the 2.4G test unit. The 2.4G test unit automatically loads the dedicated program and configuration file required for 2.4G protocol testing, connects to an external spectrum testing instrument, and initializes its internal RF transceiver circuit and signal modulation / demodulation unit to ensure the hardware module is in a test-ready state. Simultaneously, the data management module 400, based on the headset protocol type provided by the main control module 100, retrieves preset test parameters matching the 2.4G protocol from the database server, including key indicators such as 2.4G signal transmit power tolerance, channel switching time, data transmission rate, and anti-adjacent channel interference capability. These parameters are synchronized to the 2.4G test unit via the communication bus. The 2.4G test unit configures peripheral hardware devices such as signal generators and spectrum analyzers according to the parameter requirements, establishes a 2.4G wireless connection with the earphone under test, and transmits the test data to the data management module 400 for real-time storage and analysis during the test.

[0039] like Figure 1 As shown, in one embodiment, the main control module 100 is a PC host computer. In this embodiment, the PC host computer serves as the core control unit of the system, establishing bidirectional connections with the identification module 200, data management module 400, and various RF test modules 300 through dedicated communication interfaces (such as USB, Ethernet, or PCIe). It utilizes customized host computer software to achieve fully automated control of the entire process. Furthermore, the host computer software is designed based on a state machine model and uses an event-driven mechanism to achieve collaborative work between modules. Further, when the earphone under test is placed in the test station within the electromagnetic shielding box, the PC host computer sends a start signal to the identification module 200, triggering the RFID identification unit to read the earphone's product type and built-in protocol information. After receiving the identification data, the host computer software parses the wireless protocol combinations supported by the earphone under test and generates a corresponding test module activation list based on a preset protocol-module mapping table (e.g., simultaneously activating the Bluetooth test unit, Wi-Fi test unit, and 2.4G test unit). Further, during the testing process, operators can view the real-time operating status, real-time waveforms, and key indicator curves of each module through the host computer's human-machine interface (HMI). After the test is completed, the host computer software automatically compares the test data with the preset standards and generates a test report. If the product is determined to be defective, the system automatically extracts the key defect data, then associates it with the headphone's identification code, stores the information in the database server, and thus forms a complete quality traceability chain.

[0040] like Figure 1 As shown, in one embodiment, the data management module 400 also includes an FTP server. In this embodiment, after the test is completed, the host computer software reads the test data from the test instrument (such as a Bluetooth tester or spectrum analyzer), generates a standardized test report, and automatically uploads the generated test report to a specified directory on the FTP server according to preset rules through the built-in communication module. This process requires no manual intervention, thereby improving the automation level of the testing process. In addition, the FTP server, as a centralized storage platform, receives and stores massive amounts of data from various test stations, supporting multiple users to access, download, or retrieve historical reports via the network. When it is necessary to trace historical data, users can access the FTP server through the host computer software or a remote WEB interface to retrieve and download specific reports, achieving rapid data retrieval and thus solving the problem of data loss caused by scattered data storage in traditional testing.

[0041] This application also provides an RF testing device, including a multi-protocol parallel headphone RF testing system 10 according to any embodiment. In this embodiment, during the RF protocol testing process of the wireless headphone, the identification module 200 is set inside an electromagnetic isolation shielding box. The wireless headphone to be tested is placed in the test station of the identification module 200, and then the main control module 100 controls the electromagnetic isolation shielding box to automatically close. The identification module 200 obtains the headphone's product type information and built-in wireless protocol type through a non-contact reading method, and transmits the identified product type information to the main control module 100 in real time. After parsing, the main control module 100 determines the RF protocol combination that the headphone to be tested needs to be tested. Next, the host computer software of the main control module 100 controls the test process through a state machine mode. According to the protocol type provided by the identification module 200, it controls the data management module 400 to automatically download preset test parameters matching the protocol type of the headphone to be tested from the database server, and then synchronizes the parameters to the RF testing module 300 through the data management module 400 to activate the corresponding wireless RF protocol test unit combination. If both the Bluetooth and Wi-Fi test units need to be activated simultaneously, the host computer software of the main control module 100 can share the RF hardware test channel in a time-sharing manner, thus supporting parallel testing methods such as single-unit, one-to-two, and one-to-many. This solves the problem that each test unit needs to be configured with a set of test equipment in the traditional testing process, avoids redundant investment in test equipment, and improves the utilization rate of test equipment. Furthermore, during the testing process, the raw data generated by each RF test module 300 is transmitted to the data management module 400 in real time. After the test is completed, the system analyzes the test data in real time, automatically compares it with preset standards to identify defective products, determines whether the test has passed, and then automatically stores the defective product information into the database.

[0042] Compared with the prior art, this disclosure has at least the following advantages:

[0043] The aforementioned multi-protocol parallel headphone RF test system 10 activates multiple test units (such as Bluetooth, Wi-Fi, and 2.4G) of the RF test module 300 in a time-division manner through the main control module 100, breaking through the limitations of traditional single-protocol testing and realizing flexible configuration for multi-protocol combination testing. Furthermore, through the RF hardware test channel shared by the main control module 100 in a time-division manner, it solves the problem of repeated investment in hardware test equipment and high equipment idle rate caused by the limitation of a single platform in traditional production lines, and effectively improves the utilization rate of test equipment.

[0044] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A multi-protocol parallel headphone RF test system, characterized in that, It includes a main control module, an identification module, an RF test module, and a data management module, wherein the main control module is connected to the identification module, the data management module, and the RF test module respectively; The identification module is used to read the product type information of the wireless earphone to be tested and transmit the product type information to the main control module; The main control module is used to activate the corresponding RF test module for testing according to the product type information, and to use the RF test channel for time-division multiplexing. The data management module includes a database server and a data acquisition card. The data acquisition card is used to automatically download preset test parameters from the database server and synchronize them to the test station of the RF test module, so that the RF test module can complete the test and generate test data, and simultaneously upload the test data to the database server. The radio frequency test module includes multiple wireless radio frequency protocol test units. Each wireless radio frequency protocol test unit is used to receive an activation test command from the main control module to activate the test function of each wireless radio frequency protocol test unit and perform multi-protocol parallel radio frequency index tests on the wireless earphone under test.

2. The multi-protocol parallel earphone RF test system according to claim 1, characterized in that, The multi-protocol parallel headphone RF test system also includes an electromagnetic shielding box, and the identification module is located inside the electromagnetic shielding box.

3. The multi-protocol parallel earphone RF test system according to claim 2, characterized in that, The identification module includes a test fixture and a radio frequency identification (RFID) unit. The RFID unit is fixed to the test fixture, and the test fixture is disposed inside the electromagnetic shielding box.

4. The multi-protocol parallel earphone RF test system according to claim 3, characterized in that, The radio frequency identification unit is an RFID identification unit.

5. The multi-protocol parallel earphone RF test system according to claim 1, characterized in that, The radio frequency test module includes at least one of a Bluetooth test unit and a Wi-Fi test unit.

6. The multi-protocol parallel earphone RF test system according to claim 5, characterized in that, The radio frequency test module also includes a BLE test unit.

7. The multi-protocol parallel earphone RF test system according to claim 5, characterized in that, The radio frequency test module also includes a 2.4G test unit.

8. The multi-protocol parallel earphone RF test system according to claim 1, characterized in that, The main control module is a PC host computer.

9. The multi-protocol parallel earphone RF test system according to claim 1, characterized in that, The data management module also includes an FTP server.

10. A radio frequency testing device, characterized in that, Includes the multi-protocol parallel headphone RF test system as described in any one of claims 1 to 9.

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