Automatic testing device for wireless module

Abstract

The utility model discloses an automatic testing device used for a wireless module, comprising a wireless testing device main body, a wireless receiving module is arranged in the wireless testing device main body, the wireless receiving module comprises a power supply module, an MCU, a wireless signal detection module and a communication module, the power supply module is connected with the MCU, and the MCU is connected with the wireless signal detection module. The MCU is in bidirectional connection with the wireless signal detection module and the communication module, the power supply module is used for supplying power to the MCU, the MCU is connected with an isolation IO circuit, the isolation IO circuit can identify switching value input and output switching value according to function requirements, the wireless signal detection module is used for receiving wireless signals and outputting transmission data and signal strength, and the communication module is used for communication. The power supply module comprises a power supply, the power supply is connected with a DCDC and an LDO, and the LDO is connected to the output end of the DCDC. According to the utility model, the testing efficiency and accuracy of the wireless module in the product can be obviously improved, so that the production cost can be reduced and the product quality can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of wireless module testing technology, and specifically relates to an automated testing device for wireless modules. Background Technology

[0002] A wireless communication module is a device that integrates a microprocessor, radio frequency (RF) circuitry, and a modem to implement the basic functions of wireless communication. A wireless communication module typically consists of a microprocessor, RF chip, amplifier, modulator / demodulator, and antenna. These devices can establish wireless connections between different electronic devices and transmit information to the target device. The wireless communication module has a built-in radio transceiver. When data needs to be transmitted, the microprocessor controls the RF chip to generate a specific carrier frequency, and then modulates the data to be transmitted onto the carrier. The receiver, after receiving the data, uses a demodulator to restore the data and then passes it to the processor for further processing. Wireless communication modules have a wide range of applications, including but not limited to wireless sensor networks, smart homes, healthcare, and remote monitoring.

[0003] The characteristics of wireless communication modules dictate that functional testing must be conducted via wireless transmission. Although the wireless communication chip has already undergone testing of the wireless portion at the factory, it still needs to be tested after manufacturing. This is because factors that may affect the performance of the wireless communication module may occur during the manufacturing process, such as poor soldering, component damage, and circuit board defects.

[0004] In the field of wireless communication module testing, various technologies and methods have been widely used. These technologies mainly focus on the measurement and analysis of wireless signals. However, when mass-producing products with wireless communication modules, using these complex analyzers for batch testing presents a problem of low efficiency.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an automated testing device for wireless modules.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide an automated testing device for wireless modules, which can solve the problem of low efficiency in batch testing of wireless communication modules.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] An automated testing device for wireless modules includes: a main body of the wireless testing device, within which a wireless receiving module is provided. The wireless receiving module includes a power supply module, an MCU, a wireless signal detection module, and a communication module. The power supply module is connected to the MCU, and the MCU is bidirectionally connected to the wireless signal detection module and the communication module. The power supply module supplies power to the MCU. The MCU is connected to an isolated I / O circuit, which can identify switch inputs and output switch signals according to functional requirements. The wireless signal detection module receives wireless signals and outputs transmitted data and signal strength. The communication module is used for communication.

[0010] In one or more embodiments of this utility model, the power supply module includes a power supply, which is connected to a DC-DC converter and an LDO. The LDO is connected to the output terminal of the DC-DC converter and is connected to the MCU. The LDO can play a role in voltage regulation and step-down, and the DC-DC converter can play a role in step-down.

[0011] In one or more embodiments of this utility model, an isolation power supply module is connected between the DC-DC converter and the LDO, and the isolation power supply module is connected to the communication module, so that the input and output circuits are isolated to ensure the safe operation of the MCU.

[0012] In one or more embodiments of this utility model, the power supply can input a 9-30V DC voltage, and the input and output of the isolation I / O circuit are both TTL level.

[0013] In one or more embodiments of this utility model, the wireless signal detection module includes an RF receiver, which is bidirectionally connected to the MCU. After being configured by software, the RF receiver can accurately receive Sub-1GHz wireless signals and output transmission data and signal strength.

[0014] In one or more embodiments of this utility model, the communication module includes an RS485, which is bidirectionally connected to the MCU and connected to the isolated power supply module. The communication module is based on the Modbus RTU communication protocol and operates and reads the status and test results of the wireless test device body through serial port operation.

[0015] In one or more embodiments of this utility model, the MCU is connected to a host computer via RS485, and the host computer can directly control the main body of the wireless testing device to realize automated operations such as test case execution, data communication processing, and result analysis.

[0016] In one or more embodiments of this utility model, three indicator lights are installed on the surface of the wireless testing device body to indicate the operating status of the wireless testing device body. The three indicator lights are respectively connected to the power module, MCU and communication module.

[0017] Compared with existing technologies, the automated testing device for wireless modules of this invention can significantly improve the efficiency and accuracy of testing wireless modules in products, thereby reducing production costs and improving product quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of an automated testing device for a wireless module according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the arrangement of an automated testing device for a wireless module in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the hardware structure of an automated testing device for a wireless module according to one embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram illustrating the working principle of an automated testing device for a wireless module according to one embodiment of the present invention.

[0023] Figure 5 This is a test flowchart of an automated testing device for a wireless module according to one embodiment of the present invention.

[0024] Explanation of key figure labels:

[0025] 1-Main body of wireless testing device. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] like Figures 1 to 4 As shown in the figure, an automated testing device for wireless modules in one embodiment of the present invention includes a wireless testing device body 1, which is equipped with a wireless receiving module. This device can significantly improve the efficiency and accuracy of testing wireless modules in products, thereby reducing production costs and improving product quality.

[0028] The wireless receiving module includes a power supply module, an MCU, a wireless signal detection module, and a communication module. The power supply module is connected to the MCU, and the MCU is bidirectionally connected to the wireless signal detection module and the communication module.

[0029] like Figures 1 to 4 As shown, the power module is used to power the MCU. The power module includes a power supply, which is connected to a DC-DC converter and an LDO. The LDO is connected to the output of the DC-DC converter and is connected to the MCU. The LDO can regulate and step down the voltage, while the DC-DC converter can step down the voltage.

[0030] In addition, an isolation power supply module is connected between the DC-DC converter and the LDO. The isolation power supply module is connected to the communication module, so that the input and output circuits are isolated to ensure the safe operation of the MCU.

[0031] Specifically, the power supply can accept 9-30V DC voltage, and the input and output of the isolation I / O circuit are both TTL level.

[0032] In addition, the MCU is connected to an isolated I / O circuit. The combination of the MCU and the isolated I / O circuit forms a switch quantity detection circuit, which can identify switch quantity inputs and output switch quantities according to functional requirements.

[0033] like Figures 1 to 4 As shown, the wireless signal detection module is used to receive wireless signals and output transmission data and signal strength.

[0034] The wireless signal detection module includes an RF receiver, which is bidirectionally connected to the MCU. After software configuration, the RF receiver can accurately receive Sub-1GHz wireless signals and modify the reception strength and data matching quantity.

[0035] In addition, regarding reception strength, the receiving distance of the wireless receiving module can be adjusted, such as... Figure 2 As shown, the receiving distance can be adjusted by configuring the receiving power of the RF receiver, which can avoid mutual interference between various tooling fixtures and reduce the requirements for the test environment.

[0036] Specifically, regarding the number of data matching pairs, the number of data packets to be compared with the RF receiver can be adjusted by configuration to flexibly meet the customer's requirements for packet loss rate testing.

[0037] like Figures 1 to 4 As shown, the communication module is used for communication. The communication module includes an RS485 interface, which is bidirectionally connected to the MCU and also connected to the isolated power supply module, facilitating bus communication networking. The communication module is based on the Modbus RTU communication protocol and operates and reads the status and test results of the wireless test device body 1 via serial port.

[0038] The MCU is connected to a host computer via RS485. The host computer can directly control the main body 1 of the wireless test device to realize automated operations such as test case execution, data communication processing, and result analysis.

[0039] In addition, three indicator lights are installed on the surface of the wireless test device body 1: a power indicator light, a communication indicator light, and a result dual-color indicator light. The three indicator lights are connected to the power module, MCU, and communication module respectively, and are used to indicate the operating status of the wireless test device body 1.

[0040] like Figure 4 As shown, during use, the MCU will initialize and complete the initial configuration of the RF receiver, including the wireless frequency, modulation mode, communication rate, transmit / receive power, preamble frame, and synchronization frame parameters. The host computer and the MCU can choose to start using a switch detection circuit or a communication method. After the host computer sends a START command, the RF receiver recognizes the correct start command, resets to its initial state, and starts the wireless receiving function.

[0041] The MCU scans the configured frequency wireless signal in real time and provides feedback on its operating status by outputting switch signals or communication status signals. The MCU reads the received data and compares its accuracy and the number of data packets. After reception is complete, it updates the reception status and PASS / FAIL status. The MCU has a timeout mechanism; if no data is received after the timeout, the status is directly set to FAIL. The MCU will retain the test results until the next start command.

[0042] The specific testing procedure for this utility model is as follows: Figure 5 As shown, the steps are as follows:

[0043] S1. Prepare the test environment: Ensure that the test environment meets the requirements, including proper power supply, grounding and shielding, to reduce the impact of interference on the test results. Then connect the power supply and communication line to the main body 1 of the wireless test device correctly and check for reliable connection.

[0044] S2. Power-on self-test preparation: Check the power supply and enable output. The power indicator light on the main body 1 of the wireless test device should be constantly on.

[0045] S3. Configure acquisition parameters: According to the test requirements, the host computer configures the communication station number, wireless receiving frequency, wireless receiving timeout and other parameters of the main body 1 of the wireless test device to ensure that the wireless communication parameters match the product under test.

[0046] S4. Wireless communication data acquisition: The host computer starts the main body 1 of the wireless test device and controls the product under test to send wireless communication signals, waits and reads whether the wireless test device has completed receiving;

[0047] S5. Data Analysis and Processing: The host computer reads the result status of the wireless test device body 1, records it, and generates a test report;

[0048] S6. Test complete.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated testing device for wireless modules, comprising a wireless testing device body, wherein a wireless receiving module is disposed within the wireless testing device body, characterized in that, The wireless receiving module includes a power module, an MCU, a wireless signal detection module, and a communication module. The power module is connected to the MCU, and the MCU is bidirectionally connected to both the wireless signal detection module and the communication module. The power module supplies power to the MCU. The MCU is connected to an isolated I / O circuit, which can identify switch inputs and output switch signals according to functional requirements. The wireless signal detection module receives wireless signals and outputs transmission data and signal strength. The communication module is used for communication.

2. The automated testing device for wireless modules according to claim 1, characterized in that, The power module includes a power supply, which is connected to a DC-DC converter and an LDO. The LDO is connected to the output of the DC-DC converter and to the MCU.

3. The automated testing device for wireless modules according to claim 2, characterized in that, An isolated power supply module is connected between the DC-DC converter and the LDO, and the isolated power supply module is connected to the communication module.

4. An automated testing device for wireless modules according to claim 3, characterized in that, The power supply can input 9-30V DC voltage, and the input and output of the isolation I / O circuit are both TTL level.

5. An automated testing device for wireless modules according to claim 1, characterized in that, The wireless signal detection module includes an RF receiver, which is bidirectionally connected to the MCU.

6. An automated testing device for a wireless module according to claim 5, characterized in that, The RF receiver is capable of receiving Sub-1GHz wireless signals, and its reception strength and data matching quantity can be modified through configuration.

7. An automated testing device for a wireless module according to claim 6, characterized in that, In terms of receiving strength, the receiving power is configured and the receiving distance is adjusted through software to avoid mutual interference between tooling fixtures and to reduce the requirements for the testing environment. Regarding the number of data matching pairs, the number of data packets to be compared is adjusted through software configuration to meet the customer's requirements for packet loss rate testing.

8. An automated testing device for a wireless module according to claim 3, characterized in that, The communication module includes an RS485, which is bidirectionally connected to the MCU and also connected to the isolated power supply module.

9. An automated testing device for a wireless module according to claim 8, characterized in that, The MCU is connected to a host computer via RS485.

10. An automated testing device for a wireless module according to claim 1, characterized in that, The wireless testing device has three indicator lights mounted on its main surface. These three indicator lights are respectively connected to the power module, MCU, and communication module.

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