A multi-mode sensor testing system

Abstract

This utility model discloses a multi-mode sensor testing system. The system includes a test base for mounting the sensor under test, a guide rail on the side of the test base, and a heating plate mounted on the guide rail. The test base and guide rail are assembled inside a shielded enclosure. An absorbing cone is mounted on the inner wall of the shielded enclosure, and a lamp is mounted on the top of the inner wall. The sensor under test is electrically connected to a first driving power supply via the test base, the lamp is electrically connected to a second driving power supply, and the heating plate is electrically connected to a third driving power supply. A drive motor drives the heating plate to slide. A control panel is mounted outside the shielded enclosure, electrically connected to the first, second, and third driving power supplies and the drive motor. By using the guide rail, heating plate, and lamp to simulate scene realism, it can simulate human movement, changes in natural lighting, etc. By assembling different types of sensors, diverse detection can be achieved in combination with simulated scenes without the need for dedicated test sites for specific sensors, significantly improving testing efficiency and reducing testing costs.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a sensor multimode testing system. Background Technology

[0002] With the development and promotion of IoT products, more and more facilities can be controlled by sensors. For example, lighting fixtures can achieve the effect of turning on when people approach and turning off when people leave, based on infrared sensors, microwave sensors, etc. Automatic curtains can achieve the effect of automatically opening when it is light and automatically closing when it is dark, based on light sensors, etc. In industrial settings, emergency shutdown can also be achieved based on infrared sensors, etc.

[0003] As can be seen, the various sensing and control functions mentioned above involve multiple types of sensors. The same product may also be compatible with different types of sensors in different usage scenarios. This necessitates additional compatibility testing for different sensor types beyond traditional manual switches when developing and designing a product. Similarly, when developing and designing a sensor, testing is required for different products and usage scenarios that the sensor may be compatible with. Consequently, the current demand for sensor testing has increased significantly.

[0004] Traditional sensor testing methods require setting up dedicated testing sites and equipment. Furthermore, when testing different sensors, the testing site needs to be rearranged, or the testing equipment needs to be replaced or readjusted. In the current context of diverse product and sensor compatibility, this results in excessively high testing costs and low testing efficiency. Utility Model Content

[0005] This embodiment discloses a sensor multi-mode testing system, specifically including: 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 surface of the shielded box 3 is equipped with a wave-absorbing cone 31. The top of the inner wall of the shielding box 3 is fitted with a lamp body 4; 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.

[0006] 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 driving power supply is used to power the DALI bus and drive the sensor under test mounted on the test base 1.

[0007] 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.

[0008] 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.

[0009] As an optional implementation, the sensor under test includes at least 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 outline of the human body. 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 drive the heating plate 21 to move 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.

[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 the human body; 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 according to the infrared test signal. 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 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 driving 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.

[0012] 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.

[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 this utility model. 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.

[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 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 are within the protection scope of this utility model.

[0018] Please see Figures 1-4 This embodiment discloses a sensor multi-mode testing system, including: 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.

[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] In this embodiment, 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Here, the dimmable lamp body 4 is used as a simulated ambient light source for the light sensor to perform sensing tests.

[0043] 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.

[0044] 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.

[0045] 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.

Claims

1. A sensor multi-mode testing system, characterized in that, include: A test base (1) for mounting the sensor under test, a guide rail (2) is provided on the side of the test base (1), and a heating plate (21) is mounted on the top of the guide rail (2). The test base (1) and the guide rail (2) are assembled inside the shielding box (3), and the inner wall of the shielding box (3) is equipped with a wave-absorbing cone (31). The top of the inner wall of the shielding box (3) is fitted with a lamp body (4); 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 fitted 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.

2. The sensor multi-mode testing system according to claim 1, characterized in that, include: A DALI bus is connected between the first driving power supply and the test base (1), and between the first driving power supply and the integrated control panel (5); The first driving power supply is used to power the DALI bus and drive the sensor under test mounted on the test base (1).

3. The sensor multi-mode testing system according to claim 2, characterized in that, include: 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.

4. The sensor multi-mode testing system according to claim 3, characterized in that, include: 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.

5. The sensor multi-mode testing system according to claim 1, characterized in that, include: The sensor under test includes at least 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 outline of the human body. 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 drive the heating plate (21) to move along the top of the guide rail (2); The microwave sensor performs a microwave induction test on the heating plate (21) and transmits the test data to the integrated control panel (5).

6. The sensor multi-mode testing system according to claim 5, characterized in that, include: 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; 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) according to the infrared test signal. The infrared sensor performs an infrared sensing test on the heating plate (21) and transmits the test data to the integrated control panel (5).

7. A sensor multi-mode testing system according to claim 6, characterized in that, include: 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 driving 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.

8. A sensor multi-mode testing system according to claim 7, characterized in that, include: 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.

9. A sensor multi-mode testing system according to claim 5, characterized in that, include: 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).

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