Monitoring system for thermal deformation test of automobile lamp
By designing a thermal deformation test monitoring system for automotive lamps, the problem of insufficient monitoring in thermal deformation tests was solved by using current monitoring technology, thus achieving timely fault identification and performance verification, improving test reliability and reducing costs.
Patent Information
- Application Number
- CN202423057021.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing thermal deformation tests lack real-time monitoring of automotive lamps, making it impossible to identify faults or damage in a timely manner, affecting test accuracy.
A thermal deformation test monitoring system for automotive lamps was designed, which includes a control and drive module, a switch module, and a sampling module. The thermal deformation test of the lamp is controlled through electrical connection and current monitoring, and the load current is collected to determine the fault or damage.
The reliability and accuracy of thermal deformation tests are improved, the use cost is reduced, faults can be discovered in time, and the thermal deformation and high temperature resistance of lamps can be verified.
Smart Images

Figure CN223426224U_ABST
Abstract
Description
Technical Field
[0001] The embodiment of the utility model relates to the technical field of automobile lamps, and in particular to a monitoring system for a thermal deformation test of an automobile lamp. Background Art
[0002] Thermal deformation testing, also known as temperature rise testing, is a key component of automotive lighting product safety testing. The temperature rise of automotive lighting products not only affects the lighting performance but also directly impacts the lamp's service life and, more importantly, the user's personal safety during use. Therefore, thermal deformation testing of automotive lighting is crucial in safety testing. Under simulated normal operating conditions, no component or mounting surface of the automotive lighting should reach temperatures that could compromise safety.
[0003] However, in the current thermal deformation test process, there is a lack of monitoring of the thermal deformation test of automobile lamps, and it is impossible to timely know whether the automobile lamps are faulty or damaged by the high temperature test environment, which is not conducive to the test accuracy of the thermal deformation test. Utility Model Content
[0004] The embodiment of the present utility model provides a monitoring system for thermal deformation testing of automobile lamps, which has a simple structure and is easy to operate. It can better fit the actual use of automobile lamps, verify the thermal deformation performance and high temperature resistance of automobile lamps, and easily check the fault conditions of automobile lamps in a timely manner.
[0005] The embodiment of the utility model provides a monitoring system for thermal deformation test of automobile lamps, including a control and drive module, a switch module and a sampling module;
[0006] The control and driving module includes a driving signal output terminal and a sampling signal input terminal, the switch module includes a driving signal input terminal, a first sampling connection terminal and a lamp connection terminal, and the sampling module includes a second sampling connection terminal and a sampling signal output terminal;
[0007] The driving signal output end is electrically connected to the driving signal input end, the lamp connection end is electrically connected to the automobile lamp, the first sampling connection end is electrically connected to the second sampling connection end, and the sampling signal output end is electrically connected to the sampling signal input end.
[0008] Optionally, the control and drive module includes a control unit and a drive unit;
[0009] The first end of the control unit is electrically connected to one end of the driving unit, the other end of the driving unit is electrically connected to the driving signal input end as the driving signal output end, and the second end of the control unit is electrically connected to the sampling signal output end as the sampling signal input end.
[0010] Optionally, the driving unit includes a first resistor, a first transistor and a second transistor;
[0011] One end of the first resistor is electrically connected to the first end of the control unit, the other end of the first resistor is electrically connected to the control end of the first transistor, the first end of the first transistor is electrically connected to the first end of the second transistor, and the first end of the first transistor is electrically connected to the drive signal input end as the drive signal output end, the second end of the first transistor is electrically connected to the control end of the second transistor, and the second end of the second transistor is grounded.
[0012] Optionally, the control unit includes a single chip microcomputer.
[0013] Optionally, the switch module includes a relay unit;
[0014] The first end of the relay unit is electrically connected to the drive signal output end as the drive signal input end, the second end of the relay unit is electrically connected to the second sampling connection end as the first sampling connection end, the third end of the relay unit is electrically connected to the cathode of the automobile lamp as the lamp connection end, and the fourth end of the relay unit is electrically connected to the anode of the automobile lamp and an external positive voltage source, respectively.
[0015] Optionally, the relay unit includes a first inductor and a first switch;
[0016] One end of the first inductor serves as the first end of the relay unit and is electrically connected to the drive signal output end. The other end of the first inductor serves as the fourth end of the relay unit and is electrically connected to the anode of the automotive lamp and an external positive voltage source, respectively. One end of the first switch serves as the second end of the relay unit and is electrically connected to the second sampling connection end. The other end of the first switch serves as the third end of the relay unit and is electrically connected to the cathode of the automotive lamp.
[0017] Optionally, the sampling module includes a sampling unit and an analog-to-digital conversion unit;
[0018] One end of the sampling unit is electrically connected to one end of the analog-to-digital conversion unit, the other end of the sampling unit is electrically connected to the first sampling connection end as the second sampling connection end, and the other end of the analog-to-digital conversion unit is electrically connected to the sampling signal input end as the sampling signal output end.
[0019] Optionally, the sampling unit includes a Hall current sensor.
[0020] Optionally, a touch screen module is further included;
[0021] The control and driving module further includes a parameter debugging and data monitoring terminal, and the touch screen module includes a signal transmission terminal, which is electrically connected to the parameter debugging and data monitoring terminal.
[0022] Optionally, a host computer module is also included;
[0023] The control and drive module further includes a program input terminal, and the host computer module includes a program output terminal, and the program output terminal is electrically connected to the program input terminal.
[0024] An embodiment of the present utility model provides a monitoring system for thermal deformation testing of automobile lamps, which includes a control and drive module, a switch module and a sampling module; the control and drive module includes a drive signal output end and a sampling signal input end, the switch module includes a drive signal input end, a first sampling connection end and a lamp connection end, and the sampling module includes a second sampling connection end and a sampling signal output end; the drive signal output end is electrically connected to the drive signal input end, the lamp connection end is electrically connected to the automobile lamp, the first sampling connection end is electrically connected to the second sampling connection end, and the sampling signal output end is electrically connected to the sampling signal input end. The monitoring system uses a switch module to achieve electrical connection with the corresponding automobile lamp, and uses a control and drive module to control the conduction and shutdown of the corresponding switch module, thereby controlling the start and stop of the thermal deformation test of the corresponding automobile lamp. In addition, the sampling module is used to collect the load current of the switch module to indirectly determine whether the corresponding automobile lamp has a fault or is damaged by the high-temperature test environment. The system has a simple structure and is easy to operate, which can better fit the actual use of the automobile lamp, verify the thermal deformation performance and high-temperature resistance of the automobile lamp, and make it easy to check the fault status of the automobile lamp in time, thereby improving the reliability of the thermal deformation test and reducing the use cost of the thermal deformation test. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 This is a schematic structural diagram of a monitoring system for thermal deformation testing of automotive lamps provided by an embodiment of the present utility model;
[0027] Figure 2 It is a structural schematic diagram of another monitoring system for thermal deformation testing of automobile lamps provided by an embodiment of the utility model. DETAILED DESCRIPTION
[0028] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.
[0029] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described based on the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be formed directly "on" or "under" another element, but can also be formed indirectly "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not indicate any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0030] The term "including" and its variations used in the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment".
[0031] It should be noted that the concepts of "first" and "second" mentioned in this utility model are only used to distinguish the corresponding contents, and are not used to limit the order or mutual dependence.
[0032] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0033] Figure 1 This is a schematic diagram of the structure of a monitoring system for thermal deformation testing of automotive lamps provided by an embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of another monitoring system for thermal deformation testing of automotive lamps provided by an embodiment of the present utility model. Figure 2 It can be understood as Figure 1 Examples of specific circuit structures of some modules are as follows: Figure 1 and Figure 2As shown, the monitoring system includes a control and driving module 10, a switch module 20 and a sampling module 30; the control and driving module 10 includes a driving signal output terminal and a sampling signal input terminal, the switch module 20 includes a driving signal input terminal, a first sampling connection terminal and a lamp connection terminal, and the sampling module 30 includes a second sampling connection terminal and a sampling signal output terminal; the driving signal output terminal is electrically connected to the driving signal input terminal, the lamp connection terminal is electrically connected to the automobile lamp 40, the first sampling connection terminal is electrically connected to the second sampling connection terminal, and the sampling signal output terminal is electrically connected to the sampling signal input terminal.
[0034] First, it should be noted that this embodiment involves monitoring a thermal deformation test of an automotive lamp 40. This thermal deformation test involves placing the lamp 40 in a high-temperature environment, simulating normal operation, and subsequently observing the lamp 40 to determine whether it has deformed due to the heat. For example, the lamp 40 may be a rear combination lamp.
[0035] Specifically, the monitoring system comprises a control and driving module 10, a switching module 20 and a sampling module 30. The driving signal output end of the control and driving module 10 is electrically connected with the driving signal input end of the switching module 20, the lamp connection end of the switching module 20 is electrically connected with the automobile lamp 40, the control and driving module 10 can output driving signals and send them to the switching module 20, and then the switching module 20 can be turned on or turned off according to the received driving signals, so as to start or stop the thermal deformation test of the corresponding automobile lamp 40. For example, the switching module 20 can control the on-off, bright-dark and the like of the corresponding automobile lamp 40 according to the fixed time sequence. In addition, the first sampling connection end of the switching module 20 is electrically connected with the second sampling connection end of the sampling module 30, the sampling signal output end of the sampling module 30 is electrically connected with the sampling signal input end of the control and driving module 10, and the sampling module 30 can collect the load current of the switching module 20. Since there is an electrical connection relationship between the switching module 20 and the automobile lamp 40, the load current of the switching module 20 can indirectly reflect whether the corresponding automobile lamp 40 has a fault or is damaged due to the influence of the high-temperature test environment. After the sampling module 30 collects the load current of the switching module 20, it can be transmitted to the control and driving module 10, so that the control and driving module 10 can process and analyze the received load current information of the switching module 20 to determine whether the corresponding automobile lamp 40 has a fault or is damaged due to the influence of the high-temperature test environment. In turn, the monitoring system can effectively ensure the accuracy of the thermal deformation test and avoid the situation that the accuracy of the thermal deformation test is low due to the lack of timely monitoring. That is, the time control logic and current monitoring of the thermal deformation test of the automobile lamp 40 in the embodiment can complete the thermal deformation test of the automobile lamp 40 by designing the time control logic, analyzing and processing the results of current monitoring.
[0036] The technical solution in the embodiment of the present utility model is that the monitoring system includes a control and drive module, a switch module and a sampling module; the control and drive module includes a drive signal output end and a sampling signal input end, the switch module includes a drive signal input end, a first sampling connection end and a lamp connection end, and the sampling module includes a second sampling connection end and a sampling signal output end; the drive signal output end is electrically connected to the drive signal input end, the lamp connection end is electrically connected to the automobile lamp, the first sampling connection end is electrically connected to the second sampling connection end, and the sampling signal output end is electrically connected to the sampling signal input end. The monitoring system uses a switch module to achieve electrical connection with the corresponding automobile lamp, and uses a control and drive module to control the conduction and shutdown of the corresponding switch module, thereby controlling the start and stop of the thermal deformation test of the corresponding automobile lamp. In addition, the sampling module is used to collect the load current of the switch module to indirectly determine whether the corresponding automobile lamp has a fault or is damaged by the high-temperature test environment. The system has a simple structure and is easy to operate, which can better fit the actual use of the automobile lamp, verify the thermal deformation performance and high-temperature resistance of the automobile lamp, and make it easy to check the fault status of the automobile lamp in time, thereby improving the reliability of the thermal deformation test and reducing the use cost of the thermal deformation test.
[0037] Optionally, continue to refer to Figure 1 and Figure 2 The control and driving module 10 includes a control unit 11 and a driving unit 12; a first end of the control unit 11 is electrically connected to one end of the driving unit 12, the other end of the driving unit 12 is electrically connected to the driving signal input end as a driving signal output end, and a second end of the control unit 11 is electrically connected to the sampling signal output end as a sampling signal input end.
[0038] Specifically, the control and drive module 10 includes a control unit 11 and a drive unit 12. A first end of the control unit 11 is electrically connected to one end of the drive unit 12, and the other end of the drive unit 12 serves as a drive signal output end and is electrically connected to a drive signal input end. The control unit 11 can send corresponding control signals to the drive unit 12, and the drive unit 12 can generate corresponding drive signals based on the received control signals and send them to the switch module 20. A second end of the control unit 11 serves as a sampling signal input end and is electrically connected to a sampling signal output end. After the sampling module 30 collects the load current of the switch module 20, it can transmit the collected information to the control unit 11, allowing the control unit 11 to subsequently process and analyze the received load current information of the switch module 20 to determine whether the corresponding automotive lamp 40 is faulty or damaged by the high-temperature test environment.
[0039] Optionally, continue to refer to Figure 1 and Figure 2 , the control unit 11 includes a single chip microcomputer.
[0040] Specifically, with the decrease of the price of single-chip hardware, a small single-chip system can be used to replace a high-cost control system, and the small single-chip system has lower cost and higher efficiency and is widely used. The single-chip is a core device of the monitoring system, and can realize functions such as logic control, current detection, fault alarm, communication, and test monitoring, without the need for real-time monitoring by human, thereby effectively saving human operation, avoiding repetitive work of human, and improving the reliability of the monitoring system.
[0041] Further, with reference to Figure 1 and Figure 2 continuously, the driving unit 12 comprises a first resistor R1, a first transistor Q1, and a second transistor Q2; one end of the first resistor R1 is electrically connected with the first end of the control unit 11, the other end of the first resistor R1 is electrically connected with the control end of the first transistor Q1, the first end of the first transistor Q1 is electrically connected with the first end of the second transistor Q2, and the first end of the first transistor Q1 is electrically connected with the driving signal input end as the driving signal output end, the second end of the first transistor Q1 is electrically connected with the control end of the second transistor Q2, and the second end of the second transistor Q2 is grounded.
[0042] Specifically, one end of the first resistor R1 is electrically connected with the first end of the control unit 11, so that the first resistor R1 can receive the control signal sent by the control unit 11. The other end of the first resistor R1 is electrically connected with the control end of the first transistor Q1, the first end of the first transistor Q1 is electrically connected with the first end of the second transistor Q2, the first end of the first transistor Q1 is electrically connected with the driving signal input end as the driving signal output end, the second end of the first transistor Q1 is electrically connected with the control end of the second transistor Q2, and the second end of the second transistor Q2 is grounded, so that the first transistor Q1 and the second transistor Q2 can analyze and process the received control signal, correspondingly generate a driving signal, and send it to the switch module 20. Exemplarily, the first transistor Q1 and the second transistor Q2 can be bipolar transistors, and the first transistor Q1 and the second transistor Q2 can be NPN transistors. Exemplarily, the control end of the first transistor Q1 can be a base, the first end of the first transistor Q1 can be a collector, the second end of the first transistor Q1 can be an emitter, the control end of the second transistor Q2 can be a base, the first end of the second transistor Q2 can be a collector, and the second end of the second transistor Q2 can be an emitter. This embodiment is only exemplary and is not limited.
[0043] Optionally, with reference to Figure 1 and Figure 2The switch module 20 includes a relay unit 21; a first end of the relay unit 21 is electrically connected to the drive signal output end as a driving signal input end, a second end of the relay unit 21 is electrically connected to the second sampling connection end as a first sampling connection end, a third end of the relay unit 21 is electrically connected to the cathode of the automobile lamp 40 as a lamp connection end, and a fourth end of the relay unit 21 is electrically connected to the anode of the automobile lamp 40 and an external positive voltage source respectively.
[0044] Specifically, the switch module 20 includes a relay unit 21. The first end of the relay unit 21 is electrically connected to the drive signal output end as a drive signal input end, and the first end of the relay unit 21 can receive a corresponding drive signal. The third end of the relay unit 21 is electrically connected to the cathode of the automotive lamp 40 as a lamp connection end, and the fourth end of the relay unit 21 is electrically connected to the anode of the automotive lamp 40 and an external positive voltage source, respectively. The relay unit 21 can turn itself on or off according to the received drive signal, and thus the relay unit 21 can control the on and off, lighting, etc. of the corresponding automotive lamp 40 according to a fixed timing. The second end of the relay unit 21 is electrically connected to the second sampling connection end as a first sampling connection end, and the sampling module 30 can collect the load current of the relay unit 21.
[0045] Further, continue to refer to Figure 1 and Figure 2 The relay unit 21 includes a first inductor L1 and a first switch K1; one end of the first inductor L1 serves as the first end of the relay unit 21 and is electrically connected to the drive signal output end, the other end of the first inductor L1 serves as the fourth end of the relay unit 21 and is electrically connected to the anode of the automobile lamp 40 and the external positive voltage source VCC respectively, one end of the first switch K1 serves as the second end of the relay unit 21 and is electrically connected to the second sampling connection end, and the other end of the first switch K1 serves as the third end of the relay unit 21 and is electrically connected to the cathode of the automobile lamp 40.
[0046] Specifically, the first inductor L1 can be understood as being connected between the first and fourth terminals of the relay unit 21, and the first switch K1 can be understood as being connected between the second and third terminals of the relay unit 21. The first inductor L1 can generate a strong magnetic field and has a wide range of applications in electromagnetic induction, power conversion, energy transmission, and communications. Furthermore, the first inductor L1 has excellent heat resistance and can operate in high-temperature environments. Closing or opening the first switch K1 can correspondingly control the conduction or disconnection of the first inductor L1, and thereby the conduction or disconnection of the entire relay unit 21.
[0047] Optionally, continue to refer to Figure 1 and Figure 2The sampling module 30 includes a sampling unit 31 and an analog-to-digital conversion unit 32; one end of the sampling unit 31 is electrically connected to one end of the analog-to-digital conversion unit 32, the other end of the sampling unit 31 is electrically connected to the first sampling connection end as a second sampling connection end, and the other end of the analog-to-digital conversion unit 32 is electrically connected to the sampling signal input end as a sampling signal output end.
[0048] Specifically, the sampling module 30 includes a sampling unit 31 and an analog-to-digital conversion unit 32. One end of the sampling unit 31 is electrically connected to one end of the analog-to-digital conversion unit 32, and the other end of the sampling unit 31 serves as a second sampling connection end and is electrically connected to the first sampling connection end. The sampling unit 31 can collect the load current of the switch module 20 and send it to the analog-to-digital conversion unit 32. The other end of the analog-to-digital conversion unit 32 serves as a sampling signal output end and is electrically connected to a sampling signal input end. The analog-to-digital conversion unit 32 can perform analog-to-digital conversion on the load current of the switch module 20 collected by the sampling unit 31, obtain information of a type recognizable by the control and drive module 10, and send the information to the control and drive module 10, so that the control and drive module 10 can subsequently analyze and process the load current of the switch module 20.
[0049] Further, continue to refer to Figure 1 and Figure 2 The sampling unit 31 includes a Hall current sensor. The Hall current sensor has the advantages of wide measurement range, fast response speed, high measurement accuracy, good linearity, good dynamic performance, wide operating frequency band, high reliability, strong overload capacity, small size, light weight, and easy installation.
[0050] Optionally, continue to refer to Figure 1 and Figure 2 The monitoring system also includes a touch screen module 50; the control and drive module 10 also includes a parameter debugging and data monitoring terminal, the touch screen module 50 includes a signal transmission terminal, and the signal transmission terminal is electrically connected to the parameter debugging and data monitoring terminal.
[0051] Specifically, the monitoring system also includes a touch screen module 50. The parameter debugging and data monitoring terminals of the control and drive module 10 are electrically connected to the signal transmission terminals of the touch screen module 50. The touch screen module 50 allows test personnel to select programs, set parameters, and observe test status. The human-machine interface of the touch screen module 50 allows for more intuitive observation of the monitoring system's operating status and records information such as the occurrence and frequency of faults corresponding to the automotive lamps 40. By way of example, the touch screen module 50 may include a color screen.
[0052] Optionally, continue to refer to Figure 1 and Figure 2The monitoring system further includes a host computer module 60; the control and drive module 10 further includes a program input terminal, the host computer module 60 includes a program output terminal, and the program output terminal is electrically connected to the program input terminal.
[0053] Specifically, the monitoring system also includes a host computer module 60. The program input terminal of the control and drive module 10 is electrically connected to the program output terminal of the host computer module 60. The host computer module 60 can be used to program and check the control and drive module 10. The human-machine interface of the host computer module 60 allows for more intuitive observation of the operating status of the monitoring system and records information such as the occurrence and frequency of faults corresponding to the automotive lamps 40.
[0054] Optionally, the monitoring system further includes an alarm module. For example, the alarm module can be electrically connected to the control and drive module 10. After the control and drive module 10 processes and analyzes the load current information received from the switch module 20 to determine whether the corresponding automotive lamp 40 is faulty or damaged by the high-temperature test environment, it can issue an alarm to promptly alert relevant test personnel. For example, the alarm module can be an LED light.
[0055] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. A monitoring system for thermal deformation test of automobile lamps, characterized in that: Including control and drive module, switch module and sampling module; The control and driving module includes a driving signal output terminal and a sampling signal input terminal, the switch module includes a driving signal input terminal, a first sampling connection terminal and a lamp connection terminal, and the sampling module includes a second sampling connection terminal and a sampling signal output terminal; The driving signal output end is electrically connected to the driving signal input end, the lamp connection end is electrically connected to the automobile lamp, the first sampling connection end is electrically connected to the second sampling connection end, and the sampling signal output end is electrically connected to the sampling signal input end.
2. The monitoring system according to claim 1, characterized in that The control and drive module includes a control unit and a drive unit; The first end of the control unit is electrically connected to one end of the driving unit, the other end of the driving unit is electrically connected to the driving signal input end as the driving signal output end, and the second end of the control unit is electrically connected to the sampling signal output end as the sampling signal input end.
3. The monitoring system according to claim 2, characterized in that The driving unit includes a first resistor, a first transistor and a second transistor; One end of the first resistor is electrically connected to the first end of the control unit, the other end of the first resistor is electrically connected to the control end of the first transistor, the first end of the first transistor is electrically connected to the first end of the second transistor, and the first end of the first transistor is electrically connected to the drive signal input end as the drive signal output end, the second end of the first transistor is electrically connected to the control end of the second transistor, and the second end of the second transistor is grounded.
4. The monitoring system according to claim 2, characterized in that The control unit includes a single chip microcomputer.
5. The monitoring system according to claim 1, characterized in that The switch module includes a relay unit; The first end of the relay unit is electrically connected to the drive signal output end as the drive signal input end, the second end of the relay unit is electrically connected to the second sampling connection end as the first sampling connection end, the third end of the relay unit is electrically connected to the cathode of the automobile lamp as the lamp connection end, and the fourth end of the relay unit is electrically connected to the anode of the automobile lamp and an external positive voltage source, respectively.
6. The monitoring system according to claim 5, characterized in that The relay unit includes a first inductor and a first switch; One end of the first inductor serves as the first end of the relay unit and is electrically connected to the drive signal output end. The other end of the first inductor serves as the fourth end of the relay unit and is electrically connected to the anode of the automotive lamp and an external positive voltage source, respectively. One end of the first switch serves as the second end of the relay unit and is electrically connected to the second sampling connection end. The other end of the first switch serves as the third end of the relay unit and is electrically connected to the cathode of the automotive lamp.
7. The monitoring system according to claim 1, characterized in that The sampling module includes a sampling unit and an analog-to-digital conversion unit; One end of the sampling unit is electrically connected to one end of the analog-to-digital conversion unit, the other end of the sampling unit is electrically connected to the first sampling connection end as the second sampling connection end, and the other end of the analog-to-digital conversion unit is electrically connected to the sampling signal input end as the sampling signal output end.
8. The monitoring system according to claim 7, characterized in that: The sampling unit includes a Hall current sensor.
9. The monitoring system according to claim 1, characterized in that: Also includes a touch screen module; The control and driving module further includes a parameter debugging and data monitoring terminal, and the touch screen module includes a signal transmission terminal, which is electrically connected to the parameter debugging and data monitoring terminal.
10. The monitoring system according to claim 1, wherein: Also includes host computer module; The control and drive module further includes a program input terminal, and the host computer module includes a program output terminal, and the program output terminal is electrically connected to the program input terminal.