Low-power-consumption Bluetooth module batch production detection method and system

Abstract

The invention belongs to the field of wireless low-power-consumption Bluetooth module production detection, and particularly relates to a low-power-consumption Bluetooth module batch production detection method and system which are mainly applied to factory low-power-consumption Bluetooth module batch production detection. The invention provides a low-power-consumption Bluetooth module batch production detection method, which is applied to a low-power-consumption Bluetooth module function test, and comprises the following steps: obtaining and judging a test instruction, carrying out a power consumption test, a radio frequency test and a GPIO port test on a low-power-consumption Bluetooth module according to an effective test instruction, and detecting the low-power-consumption Bluetooth module according to the power consumption test, the radio frequency test and the GPIO port test. After all tests are qualified, the MAC address and the user program are programmed into the low-power-consumption Bluetooth module, a test result is recorded, and test data are uploaded and analyzed. In addition, the invention further provides a detection system based on the detection method. The testing process is high in accuracy and pertinence and effective, and automation, standardization and high efficiency of the testing process are achieved; the strict requirement of the market for performance evaluation of the low-power-consumption Bluetooth module is met, and the market competitiveness of the module is enhanced.

Description

Technical Field

[0001] The present invention belongs to the field of production and detection of wireless low-power Bluetooth modules, and specifically relates to a method and system for mass production and detection of low-power Bluetooth modules, which is mainly used for mass production and detection of low-power Bluetooth modules in factories. Background Art

[0002] With the popularization of Bluetooth wireless communication technology, the market demand for low-power Bluetooth modules is increasing. However, since the Bluetooth technology it relies on has complicated testing methods for hardware parameter testing items, factories have high requirements on the technical level of production workers when mass-producing modules, and the testing efficiency is low, which does not meet the market demand for low-power Bluetooth modules.

[0003] As an emerging Bluetooth technology, the biggest feature of the low-power Bluetooth module is that it can significantly reduce power consumption and extend battery life while maintaining a stable connection. This technology is mainly used in the fields of Internet of Things, wearable devices, smart homes, etc., especially in application scenarios that require long-term operation and difficult battery replacement, it has incomparable advantages. Low-power Bluetooth technology is based on Bluetooth 4.0 and above, and uses energy-saving methods such as broadcasting and sleep mode to effectively reduce power consumption.

[0004] Most existing technical solutions are manual testing and lack the ability of intelligent testing; the existing testing solutions are separate testing of functional testing and RF testing, which wastes manpower and does not have the ability of low-power testing. Testing of low-power Bluetooth modules requires not only comprehensive testing of their functions, but also precise measurement of their power consumption performance. Traditional testing methods are difficult to meet this demand, especially in mass production environments. The lack of automated and intelligent testing solutions leads to low testing efficiency and cannot meet the market's production demand for low-power Bluetooth modules in a timely manner. Summary of the invention

[0005] In order to effectively solve the above problems, the present invention provides a method and system for mass production detection of low-power Bluetooth modules.

[0006] To achieve the above object, a technical solution of the present invention is:

[0007] A low-power Bluetooth module mass production detection method is applied to test the function of the low-power Bluetooth module, comprising the following steps:

[0008] Obtain and judge the test instructions, perform power consumption test, radio frequency test, and GPIO port test on the low-power Bluetooth module according to the valid test instructions, burn the MAC address and user program into the low-power Bluetooth module after all tests are passed, record the test results, and upload and analyze the test data.

[0009] In some preferred embodiments, the functional test is to perform the power consumption test, radio frequency test, and GPIO port test in a predetermined order.

[0010] In some preferred embodiments, the radio frequency test includes selecting three frequency bands of 2402 MHz, 2440 MHz, and 2480 MHz in the 2.4 GHz frequency band to test the transmission power, receiving sensitivity, and frequency deviation of the 2.4 GHz chip of the low-power Bluetooth module.

[0011] In some preferred embodiments, the test instruction is based on a MAC address.

[0012] Another technical solution of the present invention is:

[0013] A low-power Bluetooth module mass production detection system, comprising:

[0014] Hardware test platform, used for testing low-power Bluetooth modules and burning MAC addresses;

[0015] Cloud platform for storing, analyzing and displaying test data;

[0016] PC software is used to cooperate with the hardware testing platform to analyze test data, output test results, and upload test data to the cloud platform.

[0017] In some preferred embodiments, the hardware testing platform includes:

[0018] A test module, used to test the function of the low-power Bluetooth module;

[0019] A burning module, used for burning the MAC address and the user program into the low-power Bluetooth module;

[0020] The control module is used to coordinate and manage the work flow of the test module and the burning module, and execute the burning operation after the test is qualified. The control module is connected to the PC software for communication.

[0021] In some preferred embodiments, the test module includes a power consumption test module, a radio frequency test module and a GPIO port test module.

[0022] In some preferred embodiments, the control module receives the MAC address extracted by the PC software and starts the test module to perform functional testing based on the MAC address.

[0023] In some preferred embodiments, the control module includes a single-chip microcomputer, and the single-chip microcomputer is connected to the PC software via a USB to RS-485 serial bus.

[0024] In some preferred embodiments, the PC software includes:

[0025] A data acquisition module, used for acquiring test data from the hardware test platform;

[0026] Data processing module, used to analyze test data and output test results;

[0027] The data upload module is used to upload the test results to the cloud platform and has an offline storage function. When the cloud platform cannot be connected, the test data can be saved locally and uploaded after reconnecting to the cloud platform.

[0028] Beneficial effects of the present invention:

[0029] By obtaining and judging the test instructions, the accuracy and pertinence of the test process are ensured, and test failures caused by instruction errors are effectively avoided; the power consumption test, RF test and GPIO function test of the Bluetooth module are carried out, and the MAC address and user program are burned after all the tests are passed. At the same time, the test data is recorded, uploaded and analyzed, realizing the automation, standardization and efficiency of the test process;

[0030] The combination of hardware testing platform, PC software and cloud platform has promoted the intelligent production of factories. Through the real-time monitoring and data analysis functions of the cloud platform, factories can achieve remote management and big data support to further optimize production efficiency. The seamless collaboration of PC software and hardware testing platform simplifies the operation process and reduces the need for manual intervention.

[0031] The direct interaction between the single-chip microcomputer and the RF chip inside the Bluetooth module avoids the reliance on expensive comprehensive testers, making the test system more economical and convenient; at the same time, through the automated process, the test time is significantly shortened and the overall operating efficiency of the production line is improved.

[0032] The power consumption test module of this system can accurately detect low power consumption at the microampere level, adapt to the detection requirements of mainstream low-power Bluetooth modules, and ensure the reliability of test data. Through high-precision detection capabilities, it meets the market's strict requirements for low-power Bluetooth module performance evaluation and enhances the module's market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a flow chart of a method for mass production and detection of low-power Bluetooth modules according to an embodiment of the present invention;

[0034] Figure 2 is a structural block diagram of a low-power Bluetooth module mass production system of an embodiment;

[0035] Figure 3 is a structural block diagram of a hardware test platform of a low-power Bluetooth module mass production system according to an embodiment;

[0036] Figure 4 is a functional schematic diagram of a power consumption test module circuit of an embodiment;

[0037] Figure 5 is a functional module block diagram of PC software of a low-power Bluetooth module mass production system of an embodiment;

[0038] Figure 6 is a schematic diagram of the interface of PC software of a low-power Bluetooth module mass production system according to an embodiment;

[0039] Figure 7 is a schematic diagram of the interface of PC software of a low-power Bluetooth module mass production system according to an embodiment;

[0040] Figure 8 is a flow chart of a detection method of a low-power Bluetooth module mass production system according to an embodiment;

[0041] In the figure, 1. Hardware test platform; 2. Cloud platform; 3. PC software; 11. Power consumption test module; 12. RF test module; 13. GPIO port test module; 14. Burning module; 15. Control module; 21. Data acquisition module; 22. Data processing module; 23. Data upload module. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only 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.

[0043] See also Figure 1 , a low-power Bluetooth module mass production detection method, applied to test the function test of the low-power Bluetooth module, comprises the following steps:

[0044] S101, obtaining and judging a test instruction;

[0045] S102, performing power consumption test, radio frequency test, and GPIO port test on the low-power Bluetooth module according to valid test instructions;

[0046] S103, after all tests are passed, burning the MAC address and the user program into the low-power Bluetooth module;

[0047] S104. Record the test results, and upload and analyze the test data.

[0048] A valid test command is a command that conforms to a predetermined format, carries test parameters, and matches the low-power Bluetooth module to be tested.

[0049] Preferably, the functional test is to perform the power consumption test, radio frequency test, and GPIO port test in sequence according to a predetermined order.

[0050] In this embodiment, the functional test is performed in sequence according to the power consumption test, radio frequency test, and GPIO port test.

[0051] The RF test includes selecting 2402MHz, 2440MHz, and 2480MHz in the 2.4GHz band to test the transmission power, receiving sensitivity, and frequency deviation of the 2.4GHz chip of the low-power Bluetooth module. The transmission power of the low-power Bluetooth module can be accurately detected between -90 and 20dBm by superimposing the 2.4G RF chip on the single-chip microcomputer; the receiving sensitivity of the module RF; and the frequency deviation of the module RF. In order to improve the test efficiency and ensure the accuracy of the test data, the RF test process selects 2402MHz, 2440MHz, and 2480MHz in the 2.4GHz band for testing. The above method replaces the traditional solution of using a comprehensive tester to test RF, which not only saves tens of thousands of costs but also improves the test efficiency.

[0052] In some preferred embodiments, the test instruction is based on the MAC address. The test instruction is based on the MAC address, and the MAC address is used as the core parameter in the test instruction, which simplifies the verification process and does not need to include other complex information. The control module 15 quickly determines whether to perform the test by determining whether the MAC address is within the valid range. Since only the MAC address needs to be verified, the control module 15 does not need to store and process multiple parameters additionally, thereby simplifying the logic and meeting the basic requirements of the test process.

[0053] like Figure 2 As shown, a low-power Bluetooth module mass production detection system includes:

[0054] Hardware test platform 1, used for testing low-power Bluetooth modules and burning MAC addresses;

[0055] Cloud platform 2, used to store, analyze and display test data;

[0056] The PC software 3 is used to cooperate with the hardware testing platform 1 to analyze test data, output test results, and upload test data to the cloud platform 2.

[0057] See also Figure 3 , the hardware testing platform 1 comprises:

[0058] A test module, used to test the function of the low-power Bluetooth module, the test module includes a power consumption test module 11, a radio frequency test module 12 and a GPIO port test module 13;

[0059] The burning module 14 is used to burn the MAC address and the user program into the low-power Bluetooth module; the control module 15 is used to coordinate and manage the work flow of the test module and the burning module 14, and perform the burning operation after the test is qualified. The control module 15 is communicated with the PC software 3. The control module 15 includes a single-chip microcomputer, and the single-chip microcomputer is connected to the PC software 3 via a USB to RS-485 serial bus.

[0060] The high-precision power consumption test module 11 is used to test whether the low-power Bluetooth module meets the requirements, and the test accuracy can reach 1uA, ensuring that the power consumption of the existing mainstream Bluetooth modules with low-power consumption functions can be accurately detected.

[0061] High-precision power consumption test module 11 solution: It adopts the current detection amplifier solution of integrated operational amplifier and the integrated circuit solution with 24-bit ADC acquisition and processing capability, and the measurement accuracy is 1uA. The circuit function schematic diagram is as follows Figure 4 As shown: the current is output from the current input terminal (OUT DC_uA+) to the current output terminal (OUT DC_uA-) through the sampling resistor R23; the 4th and 5th pins of the operational amplifier U6 collect the voltage between the two pins of the sampling resistor R23, and convert the current signal flowing through the sampling resistor into a voltage signal and output it from the 6th pin; the analog-to-digital converter (ADC) conversion circuit converts the collected voltage signal into a digital signal through the 1st and 6th pins of the chip U2 and transmits it to the control module 15, such as a single-chip microcomputer, through the I2C protocol.

[0062] The radio frequency test module 12 includes three frequency bands of 2402MHz, 2440MHz, and 2480MHz in the 2.4GHz band to test the transmission power, receiving sensitivity, and frequency deviation of the 2.4GHz chip of the low-power Bluetooth module. The transmission power of the low-power Bluetooth module can be accurately detected between -90 and 20dBm by superimposing a 2.4G radio frequency chip on a single-chip microcomputer; the receiving sensitivity of the radio frequency of the test module; and the frequency deviation of the radio frequency of the test module. In order to improve the test efficiency and ensure the accuracy of the test data, the radio frequency test process selects three frequency bands of 2402MHz, 2440MHz, and 2480MHz in the 2.4GHz band for testing. The above method replaces the traditional solution of using a comprehensive tester to test radio frequency, which not only saves tens of thousands of costs but also improves the test efficiency.

[0063] The control module 15 receives the MAC address extracted by the PC software 3 and starts the test module to perform a functional test based on the MAC address.

[0064] See also Figure 5 and Figure 6 , the PC software 3 includes:

[0065] A data acquisition module 21, used to collect test data from the hardware test platform 1;

[0066] A data processing module 22, used for analyzing test data and outputting test results;

[0067] The data uploading module 23 is used to upload the test results to the cloud platform 2 and has an offline storage function. When the cloud platform 2 cannot be connected, the test data can be saved locally and uploaded after reconnecting to the cloud platform 2.

[0068] See also Figure 7 , the cloud platform 2 is used for:

[0069] Store all test data;

[0070] Intelligently analyze test data, provide real-time monitoring and analysis functions, and support remote viewing and management of factory test data;

[0071] Support big data statistical analysis to help optimize production and testing processes.

[0072] In an application scenario, see Figure 8 As shown, the detection method of the low-power Bluetooth module mass production system includes the following steps:

[0073] Scan the QR code of the low-power Bluetooth module with a barcode scanner, send the data to the PC software via Wi-Fi, and extract the MAC address from the data;

[0074] The PC software sends the MAC address to the hardware test platform via the USB to RS-485 serial bus. The hardware platform determines the validity of the MAC address and starts the test after the determination is successful.

[0075] The hardware test platform uses the power consumption test module to test the power consumption of the low-power Bluetooth module, and the test accuracy can reach the microampere level;

[0076] After the power consumption test is passed, the RF parameters of the low-power Bluetooth module are tested through the RF test module, including transmit power, receive sensitivity and frequency deviation;

[0077] After the RF test is passed, the GPIO test module is used to test the input and output functions of the GPIO port of the low-power Bluetooth module;

[0078] After the test is completed, the MAC address and user program are burned into the low-power Bluetooth module through the burning module. Specifically, the microcontroller burns the MAC address and Bluetooth module user program into the Bluetooth module through the TTL serial port;

[0079] The test data is transmitted to the PC software via the RS-485 serial bus, and the PC software analyzes the test results and uploads the test data to the cloud platform.

[0080] More specifically, in some application scenarios, the microcontroller and all test data are sent to the PC software through the RS-485 serial bus standard to USB protocol for analysis and determination of the test results. After the PC software outputs the determination results, it transmits the test data to the original platform via Ethernet for archiving and recording. In addition, the PC software has an offline data storage function, that is, when the PC software cannot connect to the cloud platform, the PC software will save the corresponding test data locally, and can save 5,000 test data at a time. After reconnecting to the network, all data will be sent to the cloud platform in sequence.

[0081] like Figure 2 As shown, the control method of the low-power Bluetooth module mass production detection system includes the following steps:

[0082] Use PC software to control hardware test platform 1 to start functional testing of the low-power Bluetooth module, including RF test, power consumption test and GPIO test;

[0083] Real-time monitoring of the test process through the cloud platform 2, supporting remote viewing and analysis;

[0084] After the test is completed, the PC software 3 stores and analyzes the test data through the cloud platform 2 and generates a test report.

[0085] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a computing device, they can be implemented by a program code executable by the computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for mass production detection of low-power Bluetooth modules, characterized in that: Applied to test the function of low-power Bluetooth module, including the following steps: Obtain and judge the test instructions, perform power consumption test, radio frequency test, and GPIO port test on the low-power Bluetooth module according to the valid test instructions, burn the MAC address and user program into the low-power Bluetooth module after all tests are passed, record the test results, and upload and analyze the test data.

2. The method for mass production detection of low-power Bluetooth modules according to claim 1, characterized in that: The power consumption test, radio frequency test, and GPIO port test are performed in sequence according to a predetermined order.

3. The method for mass production detection of low-power Bluetooth modules according to claim 1, characterized in that: The radio frequency test includes selecting 2402MHz, 2440MHz, and 2480MHz frequency bands in the 2.4GHz frequency band to test the transmission power, receiving sensitivity, and frequency deviation of the 2.4GHz chip of the low-power Bluetooth module.

4. The method for mass production detection of low-power Bluetooth modules according to claim 1, characterized in that: The test instructions are based on the MAC address.

5. A low-power Bluetooth module mass production detection system, characterized in that: include: Hardware test platform, used for testing low-power Bluetooth modules and burning MAC addresses; Cloud platform for storing, analyzing and displaying test data; PC software is used to cooperate with the hardware testing platform to analyze test data, output test results, and upload test data to the cloud platform.

6. The low-power Bluetooth module mass production detection system according to claim 5, characterized in that: The hardware testing platform comprises: A test module, used to test the function of the low-power Bluetooth module; A burning module, used for burning the MAC address and the user program into the low-power Bluetooth module; The control module is used to coordinate and manage the work flow of the test module and the burning module, and execute the burning operation after the test is qualified. The control module is connected to the PC software for communication.

7. The low-power Bluetooth module mass production detection system according to claim 6, characterized in that: The test modules include a power consumption test module, a radio frequency test module and a GPIO port test module.

8. The low-power Bluetooth module mass production detection system according to claim 2, characterized in that: The control module receives the MAC address extracted by the PC software, and based on this, starts the test module to perform a functional test.

9. The low-power Bluetooth module mass production detection system according to claim 5, characterized in that: The control module includes a single chip microcomputer, and the single chip microcomputer is connected to the PC software via a USB to RS-485 serial bus.

10. The low-power Bluetooth module mass production detection system according to claim 5, characterized in that: The PC software includes: A data acquisition module, used for acquiring test data from the hardware test platform; Data processing module, used to analyze test data and output test results; The data upload module is used to upload the test results to the cloud platform and has an offline storage function. When the cloud platform cannot be connected, the test data can be saved locally and uploaded after reconnecting to the cloud platform.

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