A microwave testing method and system

Abstract

The application provides a microwave test method and system, the method comprises the following steps: obtaining a current sampling value from a microwave induction module when a motor in a shielding box works under a preset working condition; judging whether the current sampling value matches a preset sampling value; if yes, controlling an AD module to output a first preset voltage value to a voltmeter; if not, controlling the AD module to output a second preset voltage value to the voltmeter; wherein the first preset voltage value indicates that the microwave induction module passes the test, the second preset voltage value indicates that the current functional module fails the test, and the voltmeter is arranged outside the shielding box. The application can simplify the difficulty of microwave test and improve the efficiency of microwave test.

Description

Technical Field

[0001] This invention relates to the field of microwave testing, specifically to a microwave testing method and system. Background Technology

[0002] As microwave technology gradually becomes more widespread in the smart home field, more and more microwave-based products are entering the market. These products face product testing during the research and development and production process, and the efficiency of product testing can affect the efficiency of product production and even the time to market.

[0003] For example, in the field of smart lighting, microwave-based smart lights typically determine the user's distance using the Doppler effect, and then adjust the lighting accordingly. However, for microwave-based smart lights, in addition to testing the microwave sensing function, it is generally necessary to test the light sensing function, AD dimming function, relay output switch dimming function, infrared sensing function, etc. These functions are usually tested separately, resulting in low testing efficiency. Summary of the Invention

[0004] The primary objective of this invention is to provide a microwave testing method that improves testing efficiency and simplifies testing.

[0005] The second objective of this invention is to provide a microwave testing system with a simple structure.

[0006] To achieve the aforementioned first objective, the present invention provides a microwave testing method, wherein: when the motor inside the shielded box is operating under a preset condition, the current sampled value is obtained from the microwave sensing module; it is determined whether the current sampled value matches the preset sampled value; if yes, the AD module is controlled to output a first preset voltage value to the voltmeter; if no, the AD module is controlled to output a second preset voltage value to the voltmeter; wherein the first preset voltage value indicates that the microwave sensing module has passed the test, and the second preset voltage value indicates that the current functional module has failed the test, and the voltmeter is located outside the shielded box.

[0007] As can be seen from the above scheme, the present invention can test the AD module of the microwave device under test through a voltmeter. At the same time, by reusing the voltmeter, the microwave test results can be intuitively represented by the voltmeter outputting a specific voltage. Thus, all test results can be displayed through the voltmeter. The testing method is simple, and the test results can be known through the voltmeter. The test results of multiple functional modules can be displayed through the voltmeter, thereby improving the testing efficiency.

[0008] A further proposed approach is to control the AD module to output a third preset voltage value to the voltmeter before obtaining the current sampled value from the microwave sensing module.

[0009] Therefore, it is essential to first ensure that the AD module is working properly to guarantee the accuracy of the voltmeter readings and ensure the normal testing of subsequent functional modules.

[0010] A further proposed solution involves determining whether the current sampled value matches a preset sampled value, then controlling the relay to close. The relay connects to the spectral lamp inside the shielded box and is used to control the start and stop of the spectral lamp. The solution also involves acquiring the first current illumination data from the light sensor and determining whether the first current illumination data matches the first preset illumination data. If so, the solution controls the AD module to output a fourth preset voltage value to the voltmeter.

[0011] Therefore, it can be seen that the function of a relay can be tested by observing the working status of a spectral lamp.

[0012] A further solution is to match the first current illumination data with the first preset illumination data, determine whether the first current illumination data matches the second preset illumination data, and if so, control the AD module to output the fifth preset voltage value to the voltmeter.

[0013] Therefore, it can be seen that the function of a light sensor can be tested based on the different wavelengths of light emitted by the spectral lamp.

[0014] In a further embodiment, the first preset voltage value is less than the fourth preset voltage value, the fourth preset voltage value is less than the fifth preset voltage value, and the difference between the fourth preset voltage value and the first preset voltage value is equal to the difference between the fifth preset voltage value and the fourth preset voltage value.

[0015] Therefore, using an arithmetic progression method to display test results more intuitively and makes it easier to understand which function test is currently being performed.

[0016] To achieve the second objective mentioned above, the present invention provides a microwave testing system, comprising: a shielded box, a microwave device under test (DUT), and a voltmeter. The shielded box contains a motor driver, a motor, and the DUT; the motor driver is connected to the motor. The DUT includes a main control module, a microwave induction module, and an analog-to-digital (AD) module; the main control module is connected to both the microwave induction module and the AD module. The voltmeter is located outside the shielded box, and the AD module is connected to the voltmeter. The main control module is used to implement the aforementioned microwave testing method.

[0017] As can be seen from the above scheme, the present invention sets up a voltmeter outside the shielding box and connects it to the AD module of the microwave device under test inside the shielding box. The test results of each functional module in the microwave device under test can be obtained directly through the voltmeter reading. The test environment is simple to set up, the structure is simple, and the test difficulty is simplified.

[0018] A further embodiment includes a shielding box that also includes a spectral lamp; the microwave device under test also includes a relay and a light sensor, with the main control module connected to the relay and the light sensor respectively; the relay is connected to the spectral lamp; the main control module is also used to implement the above-mentioned microwave testing method, as well as to control the closing and opening of the relay; when the relay is closed, it controls the spectral lamp to be powered on, and when the relay is open, it controls the spectral lamp to be powered off.

[0019] Therefore, it can be seen that the relay function can be tested by setting up a spectral lamp inside the shielded box.

[0020] A further solution is to connect a relay to the motor driver. When the relay is closed, it controls the motor driver to be energized; when the relay is open, it controls the motor driver to be de-energized.

[0021] Therefore, it can be seen that the relay function can also be tested by setting up a motor driver inside the shielded box.

[0022] A further option is to include an infrared module in the microwave device under test, which is connected to the main control module. Attached Figure Description

[0023] Figure 1 This is a system block diagram of an embodiment of the microwave testing system of the present invention.

[0024] Figure 2 This is a flowchart of an embodiment of the microwave testing method of the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0026] The microwave testing method of this invention, by installing a motor and a spectrum lamp inside a shielded box and a voltmeter outside the shielded box, allows the test results of the microwave device under test inside the shielded box to be displayed intuitively through the voltmeter, thereby facilitating the testing of the microwave product under test and improving testing efficiency. This invention also provides a microwave testing system for implementing the above-described microwave testing method.

[0027] Example of a microwave testing system:

[0028] In this embodiment, the microwave device under test is a smart lamp. In addition to microwave testing, the smart lamp also needs to be tested for its light sensor function, relay function, AD module output function, and infrared receiving function.

[0029] See Figure 1The microwave testing system of this embodiment includes a shielded box 1, a microwave device under test 2, and a voltmeter 3. The shielded box 1 houses a motor driver 11, a motor 12, a metal plate 13, and a spectrum lamp 14. The microwave device under test 2 includes a main control module 21, a microwave sensing module 22, an AD module 23, a relay 24, and a light sensor 25. The voltmeter 3 is located outside the shielded box 1.

[0030] Motor driver 11 is connected to motor 12, and motor 12 is connected to metal plate 13. Main control module 21 is connected to microwave sensing module 22, AD module 23, relay 24, light sensor 25, and infrared module 26. During testing, the microwave device under test (DUT) 2 is placed inside shielded box 1 and powered by an external power source via a power interface (not shown in the figure) inside shielded box 1. In this embodiment, DUT 2 is connected to 220V AC power. AD module 23 of DUT 2 is connected to voltmeter 3 outside shielded box 1. Relay 24 of DUT 2 is connected to spectrometer lamp 14. When main control module 21 controls relay 24 to close, motor driver 11 and spectrometer lamp 14 are connected to 220V AC power. When main control module 21 controls relay 25 to open, spectrometer lamp 14 is de-energized. Motor driver 11 is also connected to 220V AC power via another power interface (not shown in the figure) of shielded box 1.

[0031] The motor driver 11 drives the motor to operate under preset conditions, thereby causing the motor to drive the metal plate to rotate, simulating different motion conditions. Based on the Doppler effect, the main control module 21 can process the analog signal acquired by the microwave sensing module 22, and after ADC conversion, form the current sampled value. The spectrum lamp 14 can be a full-spectrum lamp to simulate sunlight, providing light of different wavelengths during operation. The light sensor 25 can detect light of different wavelengths, and through the light sensor 25, it can determine whether the spectrum lamp 14 has started working and whether it can detect light of different wavelengths. The AD module 23 can be controlled by the main control module 21 to output a voltage of 0-10V during operation. For details of the testing process of the microwave product under test, please refer to the following embodiment.

[0032] Example of microwave testing method:

[0033] The microwave testing method in this embodiment is based on the aforementioned microwave testing system. Specifically, when testing the microwave device under test (DUT), the DUT is placed in a shielded box and connected to a 220V AC power supply. At this time, the relay is in the open state, and the main control module begins to execute a preset computer program. The main control module first executes step S1, controlling the AD module to output a third preset voltage value to the voltmeter. In this embodiment, the third preset voltage value is 8V. After the AD module outputs 8V, the voltmeter should display 8V. The tester can determine whether the AD module is operating normally based on whether the voltmeter displays 8V. If it cannot display 8V normally, the AD module may be malfunctioning, and the tester needs to stop the current test process and continue the subsequent test process after troubleshooting.

[0034] If the voltmeter normally displays 8V, then proceed to step S2 to close the relay. In this embodiment, the relay is used to control the energization of the motor driver and the spectrometer lamp. After the relay closes, the spectrometer lamp and the motor driver are energized and begin to operate. In other embodiments, the relay may be used to control the operation of the electrical driver alone or to control the operation of the spectrometer lamp alone.

[0035] Then, step S3 is executed to obtain the current sampled value from the microwave sensing module. Specifically, when the motor driver is powered on, the motor speed can be adjusted, and the metal sheet is moved by controlling the motor. Based on the Doppler effect, the electromagnetic wave transceiver antenna and radio frequency processing unit integrated on the microwave sensing module can identify the state changes of the moving metal sheet according to the changes in the electromagnetic wave signal. After the main control module obtains the analog signal output by the microwave sensing module, it performs ADC conversion to obtain the current sampled value.

[0036] Then, step S4 is executed to determine whether the current sampled value matches the preset sampled value. Before testing the microwave device under test, a standard microwave device is pre-determined, tested, and the data obtained from testing each functional module of the standard microwave device is recorded. This data serves as reference data when other standard microwave devices under test are tested using the same testing method. The preset sampled value is the sampled value obtained from testing the microwave induction module of the standard microwave device. Therefore, by determining whether the current sampled value matches the preset sampled value, i.e., whether the current sampled value is equal to the preset sampled value, it can be determined whether the microwave induction module of the microwave device under test has passed the test.

[0037] If the current sampled value does not match the preset sampled value, step S10 is executed, and a preset second voltage value is output to the voltmeter. The preset second voltage value indicates that the currently tested functional module has failed the test, and the tester can visually identify the faulty functional module through the voltmeter. It should be noted that the preset second voltage value can be a fixed voltage value, or different voltage values ​​can be corresponding to different functional modules.

[0038] If the current sampled value matches the preset sampled value, then proceed to step S5, controlling the AD module to output the first preset voltage value to the voltmeter. The first preset voltage value indicates that the microwave induction module has passed the test. In this embodiment, the first preset voltage value is 1V, so the tester can directly determine whether the microwave induction module has passed the test by using the voltmeter.

[0039] Then, proceed to step S6 to determine whether the first current illumination data obtained from the light sensor matches the first preset illumination data. After the relay closes, the spectral lamp starts working, allowing the light sensor to detect significant changes in the illumination data. The purpose of this step is to detect whether significant changes occur in the illumination data, thereby determining whether the closure of the relay enables the spectral lamp to work, and thus determining whether the relay is functioning correctly. The first preset illumination data is the illumination data recorded by the light sensor when the relay is not closed. If the first current illumination data matches the first preset illumination data (i.e., the first current illumination data is the same as the first preset illumination data), then it is determined that the spectral lamp has not started working, and the relay cannot close normally.

[0040] If the first illumination data matches the first preset illumination data, then step S10 is executed to output the preset second voltage value voltmeter.

[0041] If the first illumination data does not match the first preset illumination data, then step S7 is executed, controlling the AD module to output a fourth preset voltage value to the voltmeter. The fourth preset voltage value indicates that the relay test has passed; in this embodiment, the fourth preset voltage value is 2V.

[0042] Then, step S8 is executed to determine whether the first current illumination data obtained from the light sensor matches the second preset illumination data. Compared to step S6, this step requires judging the first current illumination data to determine whether the light sensor is functioning properly, that is, whether the light sensor can identify light of different wavelengths. The second preset illumination data is the illumination data obtained during standard microwave equipment testing. By judging whether the first current illumination data matches the second preset illumination data, that is, whether the first current illumination data is equal to the second preset illumination data, it can be determined whether the light sensor is functioning properly.

[0043] If the first current illumination data matches the second preset illumination data, the photosensor is determined to be functioning correctly. Step S9 is then executed, controlling the AD module to output a preset fifth voltage value to the voltmeter. The preset fifth voltage value indicates that the photosensor has passed the test. In this embodiment, the preset fifth voltage value is 3V, allowing the tester to visually understand the test's success.

[0044] If the first current illumination data does not match the second preset illumination data, then step S10 is executed to output the preset second voltage value to the voltmeter.

[0045] In other embodiments, other functions of the microwave device under test can also be tested, such as the infrared receiving function. After the infrared module receives an external infrared signal, the main control device also outputs a specific voltage value to the voltmeter, thereby determining that the infrared receiving function of the infrared module is normal through the voltmeter.

[0046] In summary, this invention uses a motor installed inside a shielded enclosure to detect the microwave sensing module of the microwave device under test (DUT), and a spectral lamp to detect the relays and light sensors of the DUT. A voltmeter is installed outside the shielded enclosure to detect the AD module of the DUT. The voltmeter is multiplexed to display the pass / fail status of each test, outputting a specific voltage to the voltmeter when different functional tests are passed. This allows testers to intuitively understand the test results, simplifying testing, improving testing efficiency, and making the test environment simple to set up and easy to implement.

Claims

1. A microwave testing method, characterized in that: When the motor driver inside the shielding box is working, it drives the motor inside the shielding box to work under preset conditions, thereby enabling the motor to control the movement of the metal plates inside the shielding box and simulating different movement conditions. Based on the Doppler effect, the electromagnetic wave transceiver antenna and radio frequency processing unit integrated on the microwave sensing module of the microwave device under test inside the shielding box can identify the state changes of the moving metal sheet according to the changes in the electromagnetic wave signal. After the main control module of the microwave device under test obtains the analog signal output by the microwave sensing module, it performs ADC conversion to form the current sampled value. The microwave device under test is a smart lamp. The main control module determines whether the current sampled value matches a preset sampled value. If yes, it controls the AD module of the microwave device under test to output a first preset voltage value to the voltmeter. If no, it controls the AD module to output a second preset voltage value to the voltmeter. The first preset voltage value indicates that the microwave sensing module has passed the test, and the second preset voltage value indicates that the current functional module has failed the test. The voltmeter is located outside the shielding box. After determining whether the current sampled value matches the preset sampled value, the main control module controls the relay to close. The relay is connected to the spectral lamp inside the shielding box and is used to control the start and stop of the spectral lamp. The first current illumination data is obtained from the light sensor, and it is determined whether the first current illumination data matches the first preset illumination data. If so, the AD module is controlled to output a fourth preset voltage value to the voltmeter. If the first current illumination data matches the first preset illumination data, determine whether the first current illumination data matches the second preset illumination data. If so, control the AD module to output the fifth preset voltage value to the voltmeter. The first preset voltage value is less than the fourth preset voltage value, the fourth preset voltage value is less than the fifth preset voltage value, and the difference between the fourth preset voltage value and the first preset voltage value is equal to the difference between the fifth preset voltage value and the fourth preset voltage value. Before obtaining the current sampled value from the microwave sensing module, the main control module controls the AD module to output a third preset voltage value to the voltmeter.

2. A microwave testing system, characterized in that, include: The shielding box, the microwave device under test, and the voltmeter are described. The shielding box contains the motor driver, the motor, and the microwave device under test. The motor driver is connected to the motor. The microwave device under test is a smart lamp. The microwave device under test includes the main control module, the microwave sensing module, and the AD module, and the main control module is connected to the microwave sensing module and the AD module respectively; The voltmeter is installed outside the shielded box, and the AD module is connected to the voltmeter. The shielding box also includes a spectral lamp; the microwave device under test also includes a relay and a photosensitive sensor, and the main control module is connected to the relay and the photosensitive sensor respectively; the relay is connected to the spectral lamp; The main control module is also used to implement the microwave testing method described in claim 1, and to control the closing and opening of the relay; When the relay is closed, it controls the spectral lamp to be powered on; when the relay is open, it controls the spectral lamp to be powered off.

3. The microwave testing system as described in claim 2, characterized in that: The relay is connected to the motor driver. When the relay is closed, it controls the motor driver to be energized. When the relay is open, it controls the motor driver to be de-energized.

4. The microwave testing system as described in claim 3, characterized in that: The microwave device under test also includes an infrared module, which is connected to the main control module.

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