Intelligent lighting switch controller with electrical safety monitoring function

Abstract

The utility model relates to an intelligent lighting switch controller with an electrical safety monitoring function. The controller is suitable for the fields of families, commercial places, public spaces, urban lighting and the like. Aiming at the problem that a traditional intelligent lighting switch controller lacks lighting loop load potential safety hazard detection, a shell structure, a magnetic latching relay and a signal acquisition circuit are redesigned. Under a single-mode structure, acquisition and monitoring of electrical parameters (current, voltage, frequency, power and electric quantity) of a lighting loop and control functions of over-current, over-voltage / under-voltage, over-temperature, time control and the like are realized; and potential safety hazards such as load over-temperature, electric arc and short circuit can be detected. The high-frequency current transformer structurally comprises an upper shell, a key, an indicator lamp, a light guide column, a circuit board assembly, a magnetic latching relay, a high-frequency current transformer, a wiring frame, a lower shell, a buckle and the like. The advantages of electrical safety monitoring, intelligent control and low cost are realized through measures of adding temperature sensors at two ends of the magnetic latching relay, adding a high-frequency current transformer and a sampling circuit thereof and the like in cooperation with a single-chip microcomputer.

Description

Technical Field

[0001] This utility model relates to the field of intelligent lighting control technology, specifically to an intelligent lighting switch controller with electrical safety monitoring. Background Technology

[0002] Currently available smart lighting switch controllers are designed with intelligent control of circuit opening and closing and monitoring of circuit electrical parameters. They use magnetic latching relays and current / voltage sampling circuits to monitor circuit opening and closing and parameters such as voltage, current, and energy, improving the intelligent control and monitoring of electrical parameters in lighting circuits. However, they lack the ability to detect potential safety hazards in the lighting circuit load. Compared to intelligent lighting control, electrical safety monitoring of lighting circuits is a national standard requirement. Many lighting circuits, such as those in spaces with a height greater than 12 meters (high-rise buildings, large stadiums, exhibition halls, etc.) and lighting systems in older buildings, require the installation of arc fault detectors. If traditional smart lighting switch controllers are used, additional electrical safety products need to be added to achieve this, posing significant challenges in terms of installation space and customer renovation budgets. Utility Model Content

[0003] The technical problem this utility model aims to solve is an intelligent lighting switch control system that achieves lighting electrical safety, energy consumption measurement, statistical analysis, and lighting control functions in a single-mode structure. By redesigning the housing structure, magnetic latching relay, and signal acquisition circuit, it achieves the acquisition and monitoring of electrical parameters of the lighting circuit, such as current, voltage, frequency, power, and power consumption, as well as the control of overcurrent, over / undervoltage, overtemperature, and time control, and the detection of safety hazards such as overtemperature, arcing, and short circuits in the load, in a minimal single-mode structure. It takes into account both the intelligent lighting control requirements and electrical safety requirements, significantly reduces the initial investment cost of lighting renovation, and can be installed and used in a variety of different installation environments, giving full play to its advantages.

[0004] To achieve the above objectives, this utility model designs an intelligent lighting switch controller with electrical safety monitoring. The intelligent lighting switch controller includes a magnetoelectric assembly, a circuit board assembly, and a microcontroller.

[0005] The magnetoelectric assembly includes a fixed magnetic latching relay and a high-frequency current transformer; the magnetic latching relay has an incoming NTC temperature sensor lead-out terminal, an outgoing NTC temperature sensor lead-out terminal, a low-frequency sampling shunt lead-out terminal, and an incoming / outgoing voltage acquisition lead-out terminal on both sides.

[0006] The circuit board assembly includes a fixed power board and a control board to ensure stable signal transmission. The circuit board assembly is equipped with at least two temperature acquisition circuits, a low-frequency current acquisition circuit, and a high-frequency current acquisition circuit. The control board is equipped with a microcontroller, one end of which is connected to each of the temperature acquisition circuit, low-frequency current acquisition circuit, and high-frequency current acquisition circuit. The other end is indirectly connected to a magnetic latching relay via circuits on the circuit board assembly. The microcontroller receives signals from the temperature, low-frequency current, and high-frequency current acquisition circuits, analyzes and processes them. If the data is normal, it controls the magnetic latching relay to switch the lighting on / off according to button commands. If the data is abnormal, such as parameters exceeding thresholds or a fault arc being detected, it controls the magnetic latching relay to cut off the circuit.

[0007] The circuit board assembly is fixed to one side of the magnetoelectric assembly and is used to process and control electrical signals. The circuit board assembly is provided with a light guide column and two indicator lights. The middle part of the upper housing is provided with a first button hole and a second button hole. The light guide column is provided with at least two light guide holes. One indicator light and one light guide hole correspond to the first button hole. The other indicator light and one light guide hole correspond to the second button hole. Buttons are provided on the button holes respectively.

[0008] The output terminal of the magnetic latching relay is fitted with a high-frequency current transformer, and the terminals of the two are fixed in sequence in the corresponding connectors on the circuit board. The magnetic latching relay is soldered to the circuit board assembly through its pins.

[0009] The NTC temperature sensor lead-out terminal on the incoming line side is used for real-time monitoring of the temperature on the incoming line side.

[0010] The NTC temperature sensor lead-out terminal on the outgoing side is used for real-time monitoring of the outgoing side temperature.

[0011] The low-frequency sampling shunt terminal is used to collect low-frequency current signals.

[0012] The input / output voltage acquisition lead terminal is used to acquire the input / output voltage signal.

[0013] The temperature acquisition circuit includes an input temperature sensor signal access port, an NTC resistor, a voltage divider resistor, a filter circuit, and a microcontroller ADC acquisition port. The input temperature sensor signal access port is connected to the lead-out terminal of the NTC temperature sensor on the input side. The NTC resistor and the voltage divider resistor divide the reference voltage VREF, with one end of the voltage divider resistor connected to the input temperature sensor signal access port and the other end connected to the filter circuit. The other end of the filter circuit is connected to the microcontroller ADC acquisition port. The NTC resistor and the voltage divider resistor divide the reference voltage VREF to generate a voltage sampling signal. After being filtered by the filter circuit, the voltage sampling signal enters the microcontroller ADC acquisition port. The microcontroller ADC acquisition port receives the filtered voltage sampling signal and processes the acquired signal to monitor the temperature at the input end. When the temperature rises abnormally and reaches or exceeds the safety threshold, the microcontroller controls a magnetic latching relay to cut off the lighting circuit, preventing electrical faults caused by excessive temperature and ensuring the safety of equipment and personnel.

[0014] The low-frequency current acquisition circuit includes a voltage sampling signal input port, a signal processing element, a signal amplification circuit, an operational amplifier, a filter circuit, and a microcontroller ADC acquisition port. The voltage sampling signal input port is connected to the output terminal of the low-frequency sampling shunt. One end of the signal processing element is connected to the voltage sampling signal input port, and the other end is connected to the signal amplification circuit. The operational amplifier is connected in the signal amplification circuit. One end of the filter circuit is connected to the operational amplifier, and the other end is connected to the microcontroller ADC acquisition port. The circuit receives the voltage sampling signal formed by the load current across the low-frequency shunt. The signal processing element processes the voltage sampling signal. The signal amplification circuit amplifies the signal using a resistor and provides a bias voltage using a reference voltage VREF. The operational amplifier amplifies the sampling signal, and the filter circuit filters the amplified sampling signal. The microcontroller ADC acquisition port receives the filtered sampling signal. The microcontroller processes the acquired signal to monitor the low-frequency current at the input terminal. If an overload occurs in the low-frequency current, the magnetic latching relay will cut off the lighting circuit under the control software to prevent safety accidents such as circuit burnout due to overcurrent.

[0015] The high-frequency current acquisition circuit includes a high-frequency current transformer signal input port, a filtering circuit, a hysteresis comparator, and a microcontroller. The high-frequency current transformer signal input port is connected to the high-frequency current transformer to receive its signal. One end of the filtering circuit is connected to the high-frequency current transformer signal input port, and the other end is connected to the hysteresis comparator. The other end of the hysteresis comparator is connected to the microcontroller. The filtering circuit filters the high-frequency current transformer signal. The hysteresis comparator includes at least two characteristic components for extracting the arc. The microcontroller receives the signal processed by the hysteresis comparator and analyzes and judges it through software algorithms to achieve real-time monitoring of fault arcs. Once a fault arc signal is detected, the magnetic latching relay will quickly cut off the lighting circuit, effectively preventing electrical fires.

[0016] The intelligent lighting switch controller includes an upper housing and a lower housing, which are fixedly connected to form a cavity inside the upper housing; the magnetoelectric assembly and the circuit board assembly are disposed above the lower housing inside the cavity.

[0017] The magnetoelectric assembly has wiring frames at both ends, which are fixed by screws to establish a reliable electrical connection between the external electrical circuit and the internal electrical control components. The top of the upper housing has a first fastening hole and a second fastening hole at both ends. The upper end of the wiring frame is cylindrical, and the cylindrical end of the wiring frame is embedded in the first fastening hole and the second fastening hole respectively, which serves to stabilize the magnetoelectric assembly.

[0018] The upper housing has at least one slot at each of its bottom ends, and the lower housing has a corresponding protrusion at the corresponding position. The upper and lower housings are fixedly connected by the engagement of the slots and the protrusions. The depth and width of the slots and the dimensions of the protrusions are precisely designed to meet the requirements of structural stability and assembly accuracy, ensuring that the upper and lower housings are firmly connected under normal use and various working conditions, and that there will be no loosening or falling off.

[0019] A groove is provided on the lower part of the lower housing, and the lower housing is connected to the buckle through the groove. The buckle is used to assist in the installation and fixation of the entire intelligent lighting switch controller.

[0020] The buttons are equipped with button caps, and there are at least two buttons, which are used for turning the lighting on and off respectively. One button cap controls the lighting to turn on, and the other controls the lighting to turn off. When the lighting is on, the indicator light is green; when the lighting is off, the indicator light is red, thus providing intuitive feedback on the lighting status. The button caps and light guides are sequentially fitted onto the upper housing and then fastened by the pressure plate.

[0021] The temperature sensor is located on both sides of the magnetic latching relay and is electrically connected to the intelligent switch controller; the low-frequency sampling shunt and the high-frequency current transformer are installed on the magnetic latching relay and are electrically connected to the intelligent switch controller, and the high-frequency current transformer is located on the other side of the magnetic latching relay.

[0022] The intelligent lighting switch controller, in a single-mode structure, has tightly coupled components and integrates electrical safety monitoring, lighting control, and energy consumption measurement functions through unified control logic and signal paths.

[0023] The advantages and beneficial effects of this utility model are as follows:

[0024] Electrical safety performance is improved. By adding a high-frequency current transformer and its sampling circuit, the arc signal in the circuit is captured in real time. Advanced signal processing technology is used to analyze the collected signal, extract the characteristic components of the fault arc, and combine it with a microcontroller for analysis and judgment. This enables real-time monitoring and control of fault arcs in lighting circuits, preventing electrical fires and ensuring personal and property safety.

[0025] High level of functional integration. In a minimal single-mode structure, this controller can collect and monitor various electrical parameters (current, voltage, frequency, power, and electrical quantity) of the lighting circuit, as well as accurately control overcurrent, over / undervoltage, overtemperature, and time-related issues. It can also detect safety hazards such as overtemperature, arcing, and short circuits in the load, comprehensively addressing both the intelligent and electrical safety requirements of lighting control.

[0026] The cost-effectiveness is significant. By adopting a single-mode structure to achieve short-circuit detection, no additional components are needed, reducing hardware costs. Integrating multiple functions within the single-mode structure avoids the need to install additional electrical safety products for electrical safety monitoring, thus reducing the initial investment cost of lighting retrofits.

[0027] Energy and management cost savings. The product is suitable for various applications including homes, commercial spaces, public spaces, and urban lighting. In commercial settings, its energy-saving, automated, and comfortable environment features enhance the office and shopping experience while also saving energy and management costs. In urban lighting, remote control and other functions enable centralized management, improving energy efficiency and sustainable development, ultimately saving users costs in the long run. Attached Figure Description

[0028] Figure 1 This is the product structure drawing of this utility model;

[0029] Figure 2 It is a drawing of a magnetic latching relay;

[0030] Figure 3 It is a temperature acquisition circuit;

[0031] Figure 4 It is a low-frequency current acquisition circuit;

[0032] Figure 5 It is a high-frequency current acquisition circuit. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0034] Example 1:

[0035] A smart lighting switch controller with electrical safety monitoring, such as Figure 1 As shown, it includes a magnetoelectric assembly 6, a circuit board assembly 5, and a microcontroller.

[0036] The magneto-electric assembly 6 includes a fixed magnetic latching relay and a high-frequency current transformer. On both sides of the magnetic latching relay, there are leads-out terminals 14 for the incoming NTC temperature sensor, 16 for the outgoing NTC temperature sensor, 15 for the low-frequency sampling shunt, and 17 for the incoming / outgoing line voltage acquisition. A high-frequency current transformer is fitted onto the outgoing end of the magnetic latching relay, and both leads are sequentially fixed in corresponding connectors on the circuit board. The magnetic latching relay is soldered to the circuit board assembly 5 via its pins. Specifically, the incoming NTC temperature sensor lead-out terminal 14 monitors the incoming temperature in real time; the outgoing NTC temperature sensor lead-out terminal 16 monitors the outgoing temperature in real time; the low-frequency sampling shunt lead-out terminal 15 acquires the low-frequency current signal; and the incoming / outgoing line voltage acquisition lead-out terminal 17 acquires the incoming / outgoing line voltage signal.

[0037] The circuit board assembly 5 consists of a fixed power supply board and a control board, ensuring stable signal transmission. Circuit board assembly 5 is equipped with at least two temperature acquisition circuits, a low-frequency current acquisition circuit, and a high-frequency current acquisition circuit. The microcontroller on the control board is connected to the temperature acquisition circuit, the low-frequency current acquisition circuit, and the high-frequency current acquisition circuit on one end, and indirectly controls the magnetic latching relay through the circuits on circuit board assembly 5 on the other end. The microcontroller receives and analyzes the signals from each acquisition circuit. If the data is normal, it controls the magnetic latching relay to switch the lighting on and off according to the button commands; if the data is abnormal, such as parameters exceeding thresholds or a fault arc being detected, it controls the magnetic latching relay to cut off the circuit.

[0038] The circuit board assembly 5 is fixed to one side of the magneto-electric assembly 6 and is used for electrical signal processing and control. The circuit board assembly 5 is equipped with a light guide post 4 and two indicator lights 3. The middle part of the upper housing 1 has a first button hole 10 and a second button hole 11. The light guide post 4 has at least two light guide holes. One indicator light 3 and one light guide hole correspond to the first button hole 10; the other indicator light 3 and light guide hole correspond to the second button hole 11. Buttons 2 are respectively provided on the button holes.

[0039] The temperature acquisition circuit includes an input temperature sensor signal input port, an NTC resistor, a voltage divider resistor, a filter circuit, and a microcontroller ADC acquisition port. The input temperature sensor signal input port is connected to terminal 14 of the NTC temperature sensor on the input side. The NTC resistor and the voltage divider resistor divide the reference voltage VREF. One end of the voltage divider resistor is connected to the input temperature sensor signal input port, and the other end is connected to the filter circuit. The other end of the filter circuit is connected to the microcontroller ADC acquisition port. The NTC resistor and the voltage divider resistor (R32) divide the reference voltage VREF to generate a voltage sampling signal. The voltage sampling signal is filtered by the filter circuit (R29, C11) and then enters the microcontroller ADC acquisition port. The microcontroller ADC acquisition port receives the filtered voltage sampling signal and processes the acquired signal to monitor the temperature at the input end. When the temperature rises abnormally and reaches or exceeds the safety threshold, the microcontroller will control the magnetic latching relay to cut off the lighting circuit to prevent electrical faults caused by excessive temperature and ensure the safety of equipment and personnel.

[0040] The low-frequency current acquisition circuit includes a voltage sampling signal input port, a signal processing element, a signal amplification circuit, an operational amplifier, a filter circuit, and a microcontroller ADC acquisition port. The voltage sampling signal input port is connected to the output terminals of the low-frequency sampling shunt. One end of the signal processing element is connected to the voltage sampling signal input port, and the other end is connected to the signal amplification circuit. The operational amplifier is connected within the signal amplification circuit. One end of the filter circuit is connected to the operational amplifier, and the other end is connected to the microcontroller ADC acquisition port. The voltage sampling signal formed by the load current across the low-frequency shunt is received and input to the circuit via J1, passing through a ferrite bead (L...). 2. The processing of components such as L7, diode (D16), and resistors (R13, R16) is as follows: R16 and R28, R13 and R10 amplify the signal, and VREF provides the bias voltage for the signal. The sampled signal is amplified by operational amplifier U2 and then filtered by R7 and C4 before entering the microcontroller's ADC acquisition port. The microcontroller's ADC acquisition port receives the filtered sampled signal and processes the acquired signal to realize low-frequency current monitoring at the input terminal. If the low-frequency current is overloaded, the magnetic latching relay will control the magnetic latching relay to cut off the lighting circuit to avoid safety accidents such as circuit burnout caused by overcurrent.

[0041] The high-frequency current acquisition circuit includes a high-frequency current transformer signal input port, a filter circuit, a hysteresis comparator, and a microcontroller. The high-frequency current transformer signal input port is connected to the high-frequency current transformer to receive its signal. One end of the filter circuit is connected to the high-frequency current transformer signal input port, and the other end is connected to the hysteresis comparator. The other end of the hysteresis comparator is connected to the microcontroller. The high-frequency current transformer signal enters the J3 input circuit. HS_A and HS_B, after passing through the filter circuit composed of C9, C13, and C10, enter IC1, R7, R11, and R12 respectively. After the hysteresis comparator 1 composed of IC3, R18, R20, and R17 is used to extract the characteristic components of the electric arc, the data is sent to the microcontroller for analysis and processing. D1 is used for amplitude limiting, R19 and R20 are connected to VREF to provide bias voltage for the input signal, and C29 is the power supply filter capacitor for comparator 1. The microcontroller receives the signal after processing by the hysteresis comparator and analyzes and judges it to realize real-time monitoring of fault arcs. Once a fault arc signal is detected, the magnetic latching relay will quickly cut off the lighting circuit, effectively preventing the occurrence of electrical fires.

[0042] The intelligent lighting switch controller includes an upper housing 1 and a lower housing 8, which are fixedly connected to form a cavity. A magnetoelectric assembly 6 and a circuit board assembly 5 are located above the lower housing 8 inside the cavity. The magnetoelectric assembly 6 has wiring frames 7 at both ends, which are secured with screws to establish a reliable electrical connection between the external electrical circuitry and the internal electrical control components. The upper housing 1 has a first fastening hole 12 and a second fastening hole 13 at both ends of its top, into which the cylindrical ends of the wiring frames 7 are embedded to secure the magnetoelectric assembly 6. At least one slot is provided at each end of the bottom of the upper housing 1, and a corresponding protrusion is provided on the lower housing 8. The two are fixedly connected by the slots and protrusions. The dimensions of the slots and protrusions are precisely designed to ensure a secure connection. A groove is provided at the bottom of the lower housing 8, which connects to a buckle 9 to assist in the installation and fixation of the entire intelligent lighting switch controller. A button cap is provided on the button 2. There are at least two buttons, controlling the lighting on and off respectively. When the lighting is on, the indicator light 3 is green, and when it is off, it is red. The button caps and light guide posts 4 are sequentially fitted onto the upper housing 1 and then secured by a pressure plate. Temperature sensors are located on both sides of the magnetic latching relay. A low-frequency sampling shunt and a high-frequency current transformer are mounted on the magnetic latching relay, with the high-frequency current transformer located on the other side of the magnetic latching relay. All of them are electrically connected to the intelligent switch controller.

[0043] This embodiment focuses on optimizing the design of the entire product using a single-module structure. Under the single-module structure, the layout and collaborative operation of each component are deeply integrated.

[0044] In terms of spatial layout, the positions of the circuit board assembly 5 and the magneto-electric assembly 6 within the housing have been further optimized. The circuit board assembly 5 is placed tightly against one side of the magneto-electric assembly 6, reducing the length and intersections of internal wiring, thereby lowering signal transmission loss and interference. Simultaneously, the component layout on the circuit board has been redesigned based on the functions of each circuit and the signal flow direction. For example, interconnected components in the low-frequency current acquisition circuit and the high-frequency current acquisition circuit are placed as close as possible to shorten the signal transmission path and enhance signal transmission stability.

[0045] In terms of structural connections, the fixing methods between various components have been strengthened. For the connection between the circuit board assembly 5 and the magneto-electric assembly 6, in addition to the original fixing methods, some positioning posts and slots have been added to make the connection more stable and prevent displacement that could affect performance during vibration or collision. At the connection between the upper housing 1 and the lower housing 8, in addition to the existing slots and protruding structures, sealant has been added for sealing, which not only improves structural stability but also effectively prevents dust and water damage, adapting to more complex operating environments.

[0046] Example 2:

[0047] Unlike Embodiment 1, in this embodiment, the power board and control board are connected via pin headers and sockets. Pins are provided on the power board, and corresponding sockets are provided on the control board, or vice versa. This connection method makes the assembly of the power board and control board more convenient and improves assembly efficiency during production. Furthermore, when one board fails, it is easy to disassemble and replace it individually, reducing maintenance difficulty and cost.

[0048] In high-frequency current acquisition circuits, higher-performance hysteresis comparators, such as the LM339, are selected. This model of hysteresis comparator has higher sensitivity and anti-interference capability, and can more accurately extract the characteristic components of the arc, thereby improving the accuracy of fault arc monitoring and reducing false alarms.

[0049] The upper housing 1 and the lower housing 8 are made of engineering plastics with better insulation properties, which further improves the electrical safety of the product and reduces the risk of safety accidents caused by leakage and other problems.

[0050] Example 3:

[0051] The difference from Example 1 is that this example uses manganese copper to completely replace the current transformer for low-frequency current acquisition. During low-frequency current acquisition, the manganese copper sampling shunt plays a crucial role. When the load current passes through the manganese copper sampling shunt, a voltage signal proportional to the current magnitude is generated at its terminals. This voltage signal is received by the voltage sampling signal input port. The subsequent process is the same as the low-frequency current acquisition circuit in Example 1, namely, processing by signal processing elements, amplification by a signal amplification circuit, further amplification by an operational amplifier, filtering by a filtering circuit, and finally acquisition by the microcontroller's ADC acquisition port and processing by the microcontroller to monitor the low-frequency current at the input terminal. This method simplifies the acquisition structure, reduces costs, and ensures the accuracy of low-frequency current acquisition.

[0052] Example 4:

[0053] The difference from Embodiment 1 lies in the improvement of the temperature monitoring and control section. In addition to the existing NTC temperature sensor, thermistors are added as auxiliary temperature monitoring elements on both the input and output sides of the magnetic latching relay. These thermistors have different temperature response characteristics, complementing the NTC temperature sensor. When the temperature changes slowly, accurate measurement is mainly achieved using the NTC temperature sensor; however, when the temperature changes rapidly or there is a possibility of localized overheating, the thermistors can more quickly detect abnormal temperature fluctuations.

[0054] The temperature control strategy employs a tiered control approach. When the temperature exceeds the first-level safety threshold (slightly above the upper limit of the normal operating temperature range), the microcontroller controls the intelligent lighting switch controller to reduce the power of the lighting fixtures to decrease heat generation and prevent further temperature increases. Only when the temperature continues to rise and reaches the second-level safety threshold (approaching the dangerous temperature that could cause electrical faults) is the magnetic latching relay controlled to cut off the lighting circuit. This tiered control method can maintain lighting functionality to a certain extent while effectively ensuring the safety of equipment and personnel, and at the same time avoiding the inconvenience caused to users by frequent circuit cutoffs due to temperature fluctuations.

[0055] The above description is only a preferred embodiment of the intelligent lighting switch controller with electrical safety monitoring of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of this utility model, such as optimizing the shape of the wiring frame and fine-tuning the parameters of each circuit. These improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An intelligent lighting switch controller with electrical safety monitoring, characterized by, It comprises a magnetoelectric combination (6), a circuit board combination (5) and a single-chip microcomputer: The magnetoelectric combination (6) comprises a magnetically latching relay and a high-frequency current transformer; the magnetically latching relay is provided with an incoming line side NTC temperature sensor lead-out terminal (14), an outgoing line side NTC temperature sensor lead-out terminal (16), a low-frequency sampling shunt lead-out terminal (15) and an incoming and outgoing line voltage acquisition lead-out terminal lead terminal (17) respectively led out at both sides thereof; The circuit board combination (5) comprises a power supply board and a control board; the circuit board combination (5) is provided with at least two temperature acquisition circuits, a low-frequency current acquisition circuit and a high-frequency current acquisition circuit; the control board is provided with a single-chip microcomputer, one end of which is connected with the temperature acquisition circuits, the low-frequency current acquisition circuit and the high-frequency current acquisition circuit respectively, and the other end thereof is indirectly connected with the magnetically latching relay through the circuit on the circuit board combination (5); The circuit board combination (5) is fixed to one side of the magnetoelectric combination (6); the circuit board combination (5) is provided with a light guide column (4) and two indicator lamps (3), and the middle part of an upper shell (1) is provided with a first button hole (10) and a second button hole (11); the light guide column (4) is provided with at least two light guide holes; one of the indicator lamps (3) and one of the light guide holes correspond to the first button hole (10); the other indicator lamp (3) and the light guide hole correspond to the second button hole (11); the button holes are respectively provided with buttons (2).

2. The smart lighting switch controller with electrical safety monitoring of claim 1, wherein, The temperature acquisition circuit comprises an incoming line end temperature sensor signal access port, an NTC resistor, a voltage dividing resistor, a filter circuit and a single-chip microcomputer ADC acquisition port; the incoming line end temperature sensor signal access port is connected with the incoming line side NTC temperature sensor lead-out terminal (14); the NTC resistor and the voltage dividing resistor divide a reference voltage VREF, wherein one end of the voltage dividing resistor is connected with the incoming line end temperature sensor signal access port, and the other end thereof is connected with the filter circuit; the other end of the filter circuit is connected with the single-chip microcomputer ADC acquisition port.

3. The smart lighting switch controller with electrical safety monitoring of claim 1, wherein, The low-frequency current acquisition circuit comprises a voltage sampling signal access port, a signal processing element, a signal amplification circuit, an operational amplifier, a filter circuit and a single-chip microcomputer ADC acquisition port; the voltage sampling signal access port is connected with the low-frequency sampling shunt lead-out terminal (15); one end of the signal processing element is connected with the voltage sampling signal access port, and the other end thereof is connected with the signal amplification circuit; the operational amplifier is connected in the signal amplification circuit; one end of the filter circuit is connected with the operational amplifier, and the other end thereof is connected to the single-chip microcomputer ADC acquisition port.

4. The electrically safety monitored intelligent lighting switch controller of claim 1, wherein, The high-frequency current acquisition circuit comprises a high-frequency current transformer signal access port, a filter circuit, a hysteresis comparator and a single-chip microcomputer ADC acquisition port; the high-frequency current transformer signal access port is connected with the high-frequency current transformer; one end of the filter circuit is connected with the high-frequency current transformer signal access port, and the other end thereof is connected with the hysteresis comparator; the other end of the hysteresis comparator is connected with the single-chip microcomputer.

5. The smart lighting switch controller with electrical safety monitoring of claim 1, wherein The intelligent lighting switch controller comprises an upper shell (1) and a lower shell (8), the upper shell (1) is fixed with the lower shell (8), and a cavity is formed in the inside; a magnetoelectric combination (6) and a circuit board combination (5) are arranged above the lower shell (8) in the cavity.

6. A smart lighting switch controller with electrical safety monitoring according to claim 1, wherein, Wire frames (7) are arranged at two ends of the magnetoelectric combination (6), and the wire frames (7) are fixed by screws.

7. A smart lighting switch controller with electrical safety monitoring according to claim 5, wherein, At least one clamping groove is arranged at each end of the bottom of the upper shell (1), and corresponding protruding structures are arranged on the corresponding positions of the lower shell (8).

8. A smart lighting switch controller with electrical safety monitoring according to claim 5, wherein, A recess is arranged below the lower shell (8), and the lower shell (8) is connected with a buckle (9) through the recess.

9. A smart lighting switch controller with electrical safety monitoring according to claim 1, wherein, Key caps are arranged on the keys (2), and the number of the keys (2) is at least two.

10. The intelligent lighting switch controller with electrical safety monitoring of claim 1, wherein, Temperature sensors are arranged on both sides of a magnetic latching relay and are electrically connected with the intelligent switch controller; a low-frequency sampling shunt and a high-frequency current transformer are installed on the magnetic latching relay and are electrically connected with the intelligent switch controller, and the high-frequency current transformer is arranged on the other side of the magnetic latching relay.

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