Sensor multimode test system and method

Abstract

The invention discloses a sensor multi-mode test system and method, and the system comprises a test pedestal equipped with a tested sensor, the side surface of the test pedestal is provided with a guide rail, and the guide rail is equipped with a heating plate; the test base and the guide rail are assembled in the shielding box, the wave-absorbing cone is assembled on the inner wall surface of the shielding box, and the lamp body is assembled on the top of the inner wall surface; the tested sensor is electrically connected with the first driving power supply through the test base, the lamp body is electrically connected with the second driving power supply, the heating plate is electrically connected with the third driving power supply, and the driving motor drives the heating plate to slide; and a comprehensive control panel is assembled outside the shielding box body and is electrically connected with the first driving power supply, the second driving power supply, the third driving power supply and the driving motor. Scene simulation is carried out through the guide rail, the heating plate and the lamp body, approaching, leaving, natural illumination changes and the like of a human body can be simulated, diversified detection can be achieved in combination with the simulated scene by assembling different types of sensors, a special test site does not need to be arranged for specific sensors, the test efficiency is greatly improved, and the test cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test equipment, in particular to a sensor multi-mode test system and method. BACKGROUND

[0002] With the development and popularization of Internet of Things products, more and more facilities can be controlled by sensors, for example, lamps can be controlled by infrared sensors, microwave sensors, etc. to achieve the effect of turning on when a person approaches and turning off when the person leaves, automatic curtains can be controlled by light sensors to achieve the effect of opening automatically when it is light and closing automatically when it is dark, and in industrial applications, infrared sensors can be used to achieve emergency shutdown.

[0003] It can be seen that the above-mentioned sensing control functions involve various types of sensors, and the same product may also be adapted to use different types of sensors in different use scenarios, which makes it necessary to additionally test different types of sensors for a product in addition to traditional manual switches when designing a product. Similarly, when designing a sensor, it is also necessary to test different products and different use scenarios that the sensor may be adapted to. Therefore, the current testing requirements for sensors have significantly increased.

[0004] The traditional sensor testing method requires a special test site and test equipment, and the test site needs to be rearranged or the test equipment needs to be replaced or re-adjusted when testing different sensors. In the current situation of product and sensor diversification, there is a problem of high testing cost and low testing efficiency. SUMMARY

[0005] The first aspect of the embodiment discloses a sensor multi-mode test system, which specifically comprises: A test base 1 is used to assemble a tested sensor, a guide rail 2 is arranged on the side of the test base 1, and a heating plate 21 is assembled on the top of the guide rail 2; The test base 1 and the guide rail 2 are assembled inside a shielding box 3, and a wave-absorbing cone 31 is assembled on the inner wall surface of the shielding box 3; A lamp body 4 is assembled on the top of the inner wall surface of the shielding box 3; The tested sensor is electrically connected to a first driving power supply through the test base 1, the lamp body 4 is electrically connected to a second driving power supply, the heating plate 21 is electrically connected to a third driving power supply, and a driving motor drives the heating plate 21 to slide along the top of the guide rail 2; A comprehensive control panel 5 is assembled outside the shielding box 3, and the comprehensive control panel 5 is electrically connected to the first driving power supply, the second driving power supply, the third driving power supply and the driving motor; The heating plate 21 comprises a power supply module, a control module, an output module and a prompt module. The power supply module receives the third driving power supply and converts and outputs heating current and operating current; The control module comprises a thermistor RT and a master control chip U2, the master control chip U2 acquires the temperature signal output by the thermistor RT, and outputs a PWM signal based on the temperature signal; The output module comprises a driving chip U3, a MOS tube QT and an output terminal CON6, the driving chip U3 regulates the output of the MOS tube QT according to the PWM signal.

[0006] As an optional implementation, the first driving power supply and the test base 1 are connected by a DALI bus, and the first driving power supply and the control panel 5 are connected by a DALI bus; The first driving power supply is used to supply power to the DALI bus and drive the tested sensor mounted on the test base 1 to operate.

[0007] As an optional implementation, the control panel 5 is electrically connected to the first driving power supply, the second driving power supply, the third driving power supply and the driving motor through the DALI bus to directionally output driving instructions; The control panel 5 is also electrically connected to the driving motor through the 485 control switch to perform switch control.

[0008] As an optional implementation, the control panel 5 is electrically connected to the first driving power supply, the second driving power supply, the third driving power supply and the driving motor through the AC bus to output driving current.

[0009] As an optional implementation, the tested sensor at least comprises a microwave sensor, an infrared sensor and a light sensor; The test base 1 is equipped with a microwave sensor, and the heating plate 21 is used to simulate the contour of a human body; The control panel 5 drives the first driving power supply to supply power to the microwave sensor according to the microwave test signal, and drives the driving motor to drive the heating plate 21 to move along the top of the guide rail 2; The microwave sensor performs microwave induction test on the heating plate 21 and transmits test data to the control panel 5.

[0010] As an optional implementation, the test base 1 is equipped with an infrared sensor, and the heating plate 21 is used to simulate the infrared characteristics of a human body; The control panel 5 drives the first driving power supply to supply power to the infrared sensor according to the infrared test signal, drives the third driving power supply to supply power to the heating plate 21 to heat, and drives the driving motor to drive the heating plate 21 to move along the top of the guide rail 2; The infrared sensor performs an infrared sensing test on the heating plate 21 and transmits the test data to the integrated control panel 5.

[0011] As an optional implementation, the prompting module includes transistor Q2, buzzer BEEP1, and diode D2; The third pin of the main control chip U2 is used to output a prompt signal to the base of the transistor Q2 when the third driving power supply supplies power to the power supply module; The transistor Q2 turns on the buzzer BEEP1 based on the prompt signal, and emits a power-on prompt tone; The diode D2 is connected in parallel to the two pins of the buzzer BEEP1; As an optional implementation, the test base 1 is equipped with a light sensor, and the lamp body 4 is used to simulate ambient light. The integrated control panel 5 drives the first driving power supply to power the light sensor and drives the second driving power supply to power the lamp body 4 for dimming, based on the light sensor test signal. The light sensor performs a light sensing test based on the light emitted by the lamp body 4 and transmits the test data to the integrated control panel 5.

[0012] The second aspect of this embodiment discloses a sensor multi-mode testing method, specifically including: Assemble the sensor under test; A test signal is generated based on the type of the sensor under test; A driving signal is generated based on the test signal; The driving signal drives the object under test to move or heat, or drives the lamp to light up; The sensor under test senses the object under test or senses light based on the driving signal; Generate and output test data; Based on the relative position data between the sensor under test and the object under test, and combined with the test data, performance data corresponding to the sensor under test is calculated.

[0013] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, a scene simulation is achieved using a guide rail, a heating plate, and a lamp body. This can simulate human movement, changes in natural lighting, and more. By assembling different types of sensors on the test base, diverse detection can be achieved in combination with the simulated scene, without the need to set up a special test site for specific sensors. This significantly improves test efficiency and reduces test costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a sensor multi-mode testing system disclosed in this embodiment; Figure 2 This is a partial structural schematic diagram of a sensor multimode testing system disclosed in this embodiment; Figure 3 This is a schematic diagram of the system structure of a sensor multimode testing system disclosed in this embodiment; Figure 4 This is a schematic diagram of the circuit principle of the heating plate in a sensor multi-mode testing system disclosed in this embodiment; Figure 5 This is a schematic diagram of the workflow of a sensor multimode testing method disclosed in this embodiment.

[0016] The specific structural component comparison table is as follows: Detailed Implementation

[0017] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figures 1-4 The first aspect of this embodiment discloses a sensor multimode testing system, comprising: The test base 1 is used to assemble the sensor under test. The side of the test base 1 is provided with a guide rail 2, and the top of the guide rail 2 is equipped with a heating plate 21. The test base 1 and the guide rail 2 are assembled inside the shielded box 3, and the inner wall of the shielded box 3 is equipped with a wave-absorbing cone 31. The lamp body 4 is installed on the top of the inner wall of the shielding box 3; The sensor under test is electrically connected to the first driving power supply via the test base 1, the lamp body 4 is electrically connected to the second driving power supply, the heating plate 21 is electrically connected to the third driving power supply, and the driving motor drives the heating plate 21 to slide along the top of the guide rail 2. The shielded enclosure 3 is externally equipped with a control panel 5, which is electrically connected to the first drive power supply, the second drive power supply, the third drive power supply, and the drive motor. The heating plate 21 includes a power supply module, a control module, an output module, and a prompting module; The power supply module receives power from the third drive power supply and converts the output heating current and operating current. The control module includes a thermistor RT and a main control chip U2. The main control chip U2 acquires the temperature signal output by the thermistor RT and outputs a PWM signal based on the temperature signal. The output module includes a driver chip U3, a MOSFET QT, and an output terminal CON6. The driver chip U3 controls the output of the MOSFET QT according to the PWM signal.

[0019] In this embodiment, the guide rail 2, heating plate 21 and lamp body 4 are used to simulate the scene, which can simulate the approach and departure of the human body, changes in natural lighting, etc. By assembling different types of sensors on the test base 1, diversified detection can be achieved in combination with the simulated scene.

[0020] For example, when the heating plate 21 is not heated but only moves on the guide rail 2, it can simulate the outline of a human body for microwave sensors, reflective sensors, etc. to perform induction tests.

[0021] When the heating plate 21 is heated and moves on the guide rail 2, it can simulate the infrared characteristics of the human body for infrared sensors and other devices to perform sensing tests.

[0022] When the lamp body 4 emits light at different brightness levels, it can simulate changes in ambient brightness, which can be used for sensing tests by light sensors and other devices.

[0023] Therefore, there is no need to set up special test sites for specific sensors, which greatly improves test efficiency and reduces test costs.

[0024] In this embodiment, the shielding box 3 combined with the wave-absorbing cone 31 mounted on the inner wall can effectively block external signal interference and absorb electromagnetic scattering signals inside the shielding box 3, avoiding continuous signal reflection inside causing equipment malfunction and ensuring stable and accurate test results.

[0025] As an optional implementation, a DALI bus is connected between the first drive power supply and the test base 1, and between the first drive power supply and the integrated control panel 5. The first drive power supply is used to power the DALI bus and drive the sensor under test mounted on the test base 1.

[0026] Here, the first drive power supply supplies power to the DALI bus, enabling bidirectional transmission of drive commands or test data between the integrated control panel 5 and each drive component and test component, thereby achieving precise control of specific drive components or test components.

[0027] As an optional implementation, the integrated control panel 5 is electrically connected to the first drive power supply, the second drive power supply, the third drive power supply and the drive motor via the DALI bus to output drive commands in a directional manner. The integrated control panel 5 is also electrically connected to the drive motor via a 485 control switch to perform switch control.

[0028] As an optional implementation, the integrated control panel 5 is electrically connected to the first drive power supply, the second drive power supply, the third drive power supply and the drive motor via an AC bus to output drive current.

[0029] Here, in addition to data transmission based on the DALI bus, the drive motor switching is controlled by the 485 control switch, and power is supplied to each drive component and test component via the AC bus. Integrated control can be achieved through the integrated control panel 5 according to the set test code, without the need for independent debugging of each component, which greatly improves the testing efficiency.

[0030] Furthermore, compared to manual debugging, test cases executed uniformly by test code have advantages in accuracy and uniformity, ensuring accurate test results and avoiding the influence of subjective factors such as human intervention.

[0031] In this embodiment, the sensor under test includes at least a microwave sensor, an infrared sensor, and a light sensor.

[0032] As an optional implementation, the test base 1 is equipped with a microwave sensor, and the heating plate 21 is used to simulate the human body contour. The integrated control panel 5 drives the first driving power supply to power the microwave sensor according to the microwave test signal, and drives the driving motor to move the heating plate 21 along the top of the guide rail 2. The microwave sensor performs microwave induction testing on the heating plate 21 and transmits the test data to the integrated control panel 5.

[0033] Here, a movable heating plate 21 is used to simulate the outline of a human body for microwave sensors to perform sensing tests.

[0034] As an optional implementation, the test base 1 is equipped with an infrared sensor, and the heating plate 21 is used to simulate the infrared characteristics of the human body. According to the infrared test signal, the integrated control panel 5 drives the first driving power supply to power the infrared sensor, drives the third driving power supply to power the heating plate 21 for heating, and drives the driving motor to drive the heating plate 21 to move along the top of the guide rail 2. The infrared sensor performs an infrared sensing test on the heating plate 21 and transmits the test data to the integrated control panel 5.

[0035] Here, the heating plate 21 in a moving, heated state simulates the infrared characteristics of the human body for infrared sensor to perform sensing tests.

[0036] The notification module includes transistor Q2, buzzer BEEP1, and diode D2; Pin 3 of the main control chip U2 is used to output a prompt signal to the base of transistor Q2 when the third drive power supply supplies power to the power supply module; Transistor Q2 turns on the buzzer BEEP1 based on the prompt signal, emitting a power-on prompt tone; Diode D2 is connected in parallel to the two pins of buzzer BEEP1.

[0037] Understandably, in the enclosed environment of the shielded enclosure 3, heat dissipation is limited, and if the test cycle is long, the heating plate 21 will continue to heat up.

[0038] Therefore, such as Figure 4 As shown, a thermistor is used to detect the temperature of the heating plate in real time, and the output of the PWM signal is adjusted accordingly to ensure that the temperature of the heating plate 21 remains stable within a specific temperature range, thereby improving the reliability and accuracy of the test process.

[0039] Furthermore, the heating plate temperature can be flexibly configured by manually adjusting the PWM to simulate different usage environments and different human body temperatures, and it can also support testing of high-precision infrared sensors.

[0040] As an optional implementation, the test base 1 is equipped with a light sensor, and the lamp body 4 is used to simulate ambient light. Based on the light sensor test signal, the integrated control panel 5 drives the first driving power supply to power the light sensor and drives the second driving power supply to power the lamp body 4 for dimming. The light sensor performs a light sensing test based on the light emitted by the lamp body 4 and transmits the test data to the integrated control panel 5.

[0041] Here, the dimmable lamp body 4 is used as a simulated ambient light source for the light sensor to perform sensing tests.

[0042] Understandably, this discussion uses only microwave sensors, infrared sensors, and light sensors as examples to demonstrate the diverse testing methods and scope of the multi-mode sensor testing system.

[0043] When testing other types of sensors is required, the corresponding sensor can be tested by replacing the heating plate 21 with the object that the other type of sensor is designed to detect, or by adding other types of triggering devices.

[0044] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, a scene simulation is achieved using a guide rail, a heating plate, and a lamp body. This can simulate human movement, changes in natural lighting, and more. By assembling different types of sensors on the test base, diverse detection can be achieved in combination with the simulated scene, without the need to set up a special test site for specific sensors. This significantly improves test efficiency and reduces test costs.

[0045] Example 2 Please see Figure 5 The second aspect of this embodiment discloses a sensor multimode testing method, including: a. Assemble the sensor to be tested.

[0046] In this embodiment, the test base has a universal interface, which can be easily assembled with various types of sensors and oriented toward the object under test.

[0047] b. Generate test signals based on the type of sensor being tested.

[0048] In this embodiment, the type of sensor under test can be selected in the integrated control panel, or the integrated control panel can poll the device through the DALI bus to obtain the response signal of the sensor under test and determine the type of sensor under test itself.

[0049] c. Generate driving signals based on test signals.

[0050] In this embodiment, a drive signal corresponding to the type of sensor under test will be generated based on the test signal.

[0051] The drive signal includes addressing data for a specific drive component or test component, as well as control strategies for that specific drive component or test component.

[0052] d. Drive the object under test to move or heat based on the driving signal, or drive the lamp body to light up.

[0053] In this embodiment, different control strategies should be implemented for different sensor types.

[0054] For example, when testing microwave sensors, moving the object under test can simulate the movement of the human body contour.

[0055] When testing infrared sensors, heating the object under test and driving it to move can simulate the movement of human infrared features.

[0056] When testing the light sensor, the process of illuminating the lamp and adjusting its intensity can simulate the change in ambient light intensity.

[0057] e. The sensor under test senses the object under test based on the driving signal, or senses light; In this embodiment, a specific component is driven to run based on preset test cases to complete the current test.

[0058] f. Generate and output test data.

[0059] In this embodiment, the sensor under test measures several test data for the object under test.

[0060] Understandably, parameters such as the distance between the sensor and the object under test, the outline of the object, and its moving speed during simulation testing differ from those in dedicated testing scenarios. Therefore, it is necessary to convert the test data obtained from simulation testing to obtain performance data corresponding to actual application scenarios. As an optional implementation method, performance data corresponding to the sensor under test is obtained by combining the relative position data of the sensor under test and the object under test with the test data.

Claims

1. A sensor multi-mode test system, characterized by, The application relates to a test base (1) for assembling a sensor to be tested, wherein a guide rail (2) is arranged on the side of the test base (1), and a heating plate (21) is arranged on the top of the guide rail (2); the test base (1) and the guide rail (2) are arranged in a shielding box (3), and a wave-absorbing cone (31) is arranged on the inner wall of the shielding box (3); a lamp body (4) is arranged on the top of the inner wall of the shielding box (3); the sensor to be tested is electrically connected with a first driving power supply through the test base (1), the lamp body (4) is electrically connected with a second driving power supply, the heating plate (21) is electrically connected with a third driving power supply, and a driving motor drives the heating plate (21) to slide on the top of the guide rail (2); a comprehensive control panel (5) is arranged on the outside of the shielding box (3), and the comprehensive control panel (5) is electrically connected with the first driving power supply, the second driving power supply, the third driving power supply and the driving motor; wherein the heating plate (21) comprises a power supply module, a control module, an output module and a prompt module; the power supply module receives power supply of the third driving power supply and converts and outputs heating current and operating current; the control module comprises a thermistor RT and a main control chip U2, the main control chip U2 acquires a temperature signal output by the thermistor RT and outputs a PWM signal based on the temperature signal; the output module comprises a driving chip U3, a MOS tube QT and an output terminal CON6, and the driving chip U3 adjusts and controls the output of the MOS tube QT according to the PWM signal. The first driving power supply is connected with the test base (1) and the comprehensive control panel (5) through a DALI bus; the first driving power supply is used for supplying power to the DALI bus and driving the sensor to be tested arranged on the test base (1) to operate. The comprehensive control panel (5) is electrically connected with the first driving power supply, the second driving power supply, the third driving power supply and the driving motor through the DALI bus to directionally output driving instructions; the comprehensive control panel (5) is also electrically connected with the driving motor through a 485 control switch to perform switch control. The comprehensive control panel (5) is electrically connected with the first driving power supply, the second driving power supply, the third driving power supply and the driving motor through an AC bus to output driving current. The sensor to be tested at least comprises a microwave sensor, an infrared sensor and a light sensor; the test base (1) is arranged with the microwave sensor, and the heating plate (21) is used for simulating a human body contour; the comprehensive control panel (5) drives the first driving power supply to supply power to the microwave sensor according to a microwave test signal and drives the driving motor to drive the heating plate (21) to move on the top of the guide rail (2); the microwave sensor performs microwave induction test on the heating plate (21) and transmits test data to the comprehensive control panel (5). The test base (1) is arranged with the infrared sensor, and the heating plate (21) is used for simulating an infrared feature of a human body. ​ ​ ​ ​ 2. A sensor multi-mode test system according to claim 1, wherein, ​ ​ ​ 3. A sensor multi-mode test system according to claim 2, wherein, ​ ​ ​ 4. The sensor multi-mode test system of claim 3, wherein, ​ ​ 5. The sensor multi-mode test system of claim 1, wherein, ​ ​ ​ ​ ​ 6. A sensor multi-mode test system according to claim 5, wherein, ​ ​ The control panel (5) drives the first driving power supply to power the infrared sensor, drives the third driving power supply to power and heat the heating plate (21), and drives the driving motor to drive the heating plate (21) to move along the top of the guide rail (2) according to the infrared test signal. The infrared sensor performs infrared induction test on the heating plate (21) and transmits test data to the control panel (5).

7. The sensor multi-mode test system of claim 1, wherein, It comprises: The prompt module comprises a triode Q2, a buzzer BEEP1 and a diode D2; The third pin of the main control chip U2 is used to output a prompt signal to the base of the triode Q2 when the third driving power supply powers the power supply module; The triode Q2 turns on the buzzer BEEP1 based on the prompt signal to issue a power-on prompt sound; The diode D2 is connected in parallel with the two pins of the buzzer BEEP1.

8. The sensor multi-mode test system of claim 5, wherein, It comprises: The test base (1) is equipped with a light sensor, and the lamp body (4) is used to simulate an environmental light source; The control panel (5) drives the first driving power supply to power the light sensor and drives the second driving power supply to power the lamp body (4) for dimming according to the light test signal; The light sensor performs light induction test based on the light emitted by the lamp body (4) and transmits test data to the control panel (5).

9. A method of multi-mode testing of a sensor, the method comprising: It comprises: Assembling a tested sensor; Generating a test signal based on the type of the tested sensor; Generating a driving signal based on the test signal; Driving the tested object to move or heat, or driving the lamp body to light up based on the driving signal; The tested sensor senses the tested object or light based on the driving signal; Generating test data and outputting; Based on the relative position data of the tested sensor and the tested object, the performance data corresponding to the tested sensor is obtained by combining the test data.

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