Intelligent safety alarm device of electric control cabinet

Abstract

The utility model relates to an electric control cabinet intelligent safety alarm device, which comprises an electric control cabinet main body, an ultrasonic ranging module, an alarm module and a communication module, and is characterized in that the ultrasonic ranging module measures the time difference of transmitting and receiving ultrasonic waves to determine the actual distance between an obstacle and the electric control cabinet main body, so that non-contact ranging is realized; the timeliness of alarm triggering is ensured, and accurate measurement can be carried out even in a severe environment full of dust, smog or corrosive substances and the like; the multi-mode alarm module and the ultrasonic ranging module are combined for use, multi-mode alarm is carried out when the ultrasonic ranging module triggers the alarm function, a multi-level verification and confirmation mechanism is realized, the possibility of false alarm is reduced, diversified alarm signals are provided, and the alarm can be carried out even in a noisy or poor-sight environment. Normal receiving of alarm information can also be ensured; by means of the communication module, the intelligent safety alarm device of the electric control cabinet has remote monitoring and management functions, and the quick response capability is remarkably enhanced.

Description

Technical Field

[0001] This application relates to the field of power safety equipment technology, and in particular to an intelligent safety alarm device for electrical control cabinets. Background Technology

[0002] Electrical control cabinets, as core power supply devices in power distribution lines and equipment control systems, have an extremely wide range of applications. However, this widespread use also correspondingly increases the risk of human contact and the potential danger of fire, accounting for a significant proportion of electrical fires. During the operation of electrical control cabinets, if personnel approach or enter their interiors, it can easily lead to electric shock accidents, short circuits, misoperation of equipment, and other unsafe events, which in severe cases can even threaten personal safety and the normal operation of the equipment. Although there are clear warning signs prohibiting approaching the electrical control cabinet and its surrounding area, these warnings are often ignored, thus creating hidden dangers for safety accidents.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0004] The purpose of this application is to provide an intelligent safety alarm device for electrical control cabinets, in order to solve the problems of low security, insignificant warning effect, lack of remote monitoring and management, and difficulty in adapting to complex environments in the existing technology of electrical control cabinets.

[0005] To solve the above problems, the intelligent safety alarm device for electrical control cabinets disclosed in this application adopts the following technical solution:

[0006] The intelligent safety alarm device for the electrical control cabinet includes: an electrical control cabinet body, an ultrasonic ranging module, an alarm module, and a communication module. The ultrasonic ranging module is mounted on the electrical control cabinet body and is used to determine the actual distance between an obstacle and the electrical control cabinet body by measuring the time difference between transmitting and receiving ultrasonic waves. The alarm module is connected to the ultrasonic ranging module and performs a multimodal alarm when the ultrasonic ranging module triggers its alarm function. The communication module is connected to the alarm module to establish a communication link between the intelligent safety alarm device for the electrical control cabinet and external devices.

[0007] According to an embodiment of this application, an intelligent safety alarm device for an electrical control cabinet includes an ultrasonic ranging module comprising an ultrasonic generator, an ultrasonic receiver, a main control unit, a timer, a judgment unit, and an alarm execution unit. The ultrasonic generator emits ultrasonic signals to the vicinity of the electrical control cabinet body. The ultrasonic receiver receives the ultrasonic signals generated by the ultrasonic generator and reflected back by obstacles. The timer is connected to the ultrasonic generator and the ultrasonic receiver to record the time difference between the ultrasonic signal emission and reception. The main control unit is connected to the timer and determines the actual distance between the obstacle and the electrical control cabinet body based on the time difference. The judgment unit is connected to the main control unit and compares the actual distance with a preset safety distance. The alarm execution unit is connected to the judgment unit and triggers an alarm function.

[0008] According to one embodiment of the intelligent safety alarm device for electrical control cabinets, the ultrasonic ranging module further includes a temperature unit, which is connected to the main control unit and transmits the real-time monitored ambient temperature to the main control unit, which then performs temperature calibration on the propagation speed of the ultrasonic signal.

[0009] According to an embodiment of the intelligent safety alarm device for electrical control cabinets, the temperature unit includes a temperature sensor, a signal conditioning circuit, and an analog-to-digital converter. The temperature sensor is used to monitor the ambient temperature in real time. The signal conditioning circuit is connected to the temperature sensor and amplifies, filters, and linearizes the ambient temperature. The analog-to-digital converter is connected between the signal conditioning circuit and the main control unit and performs analog-to-digital conversion on the output signal of the signal conditioning circuit for temperature calibration by the main control unit.

[0010] According to one embodiment of the intelligent safety alarm device for electrical control cabinets, the temperature sensor includes a thermocouple, a thermistor, and a platinum resistance thermometer.

[0011] According to an embodiment of the intelligent safety alarm device for electrical control cabinets, the signal conditioning circuit includes an operational amplifier, a filter, and a linear amplifier, wherein the operational amplifier is connected to the temperature sensor; the filter is connected to the operational amplifier; and the linear amplifier is connected to the filter.

[0012] According to one embodiment of the present application, the intelligent safety alarm device for an electrical control cabinet includes an RC filter and an RLC filter.

[0013] According to one embodiment of the present application, the intelligent safety alarm device for electrical control cabinet includes a main control unit comprising a digital signal processor, a microcontroller unit, and an ARM processor.

[0014] According to one embodiment of the intelligent safety alarm device for electrical control cabinets, the alarm module includes a voice announcement unit, an optical signal unit, and an AI voice recognition unit. The voice announcement unit is connected to the ultrasonic ranging module and plays preset voice information for real-time announcement when the ultrasonic ranging module triggers the alarm function. The optical signal unit is connected to the ultrasonic ranging module and provides visual alerts when the ultrasonic ranging module triggers the alarm function. The AI ​​voice recognition unit is connected to the voice announcement unit and the optical signal unit, and identifies obstacles based on keywords and emotional changes, adjusting the alarm strategy according to the identification results.

[0015] According to an embodiment of the intelligent safety alarm device for electrical control cabinets, the communication module includes a communication interface, a routing configuration unit, a VPN private network access unit, a firewall protection unit, an NTP time calibration unit, a domain name resolution unit, a processor unit, a power supply and interface protection unit, and a watchdog timer. The communication interface is connected to the processor unit and configures the communication protocol and interface parameters. The routing configuration unit is connected to the processor unit bus. The VPN private network access unit is connected to the processor unit bus. The firewall protection unit is connected to the processor unit bus. The NTP time calibration unit is connected to the processor unit bus for time synchronization. The domain name resolution unit is connected to the processor unit bus. The power supply and interface protection unit is connected to the communication interface, providing power to the communication interface and providing lightning protection. The watchdog timer is connected to the processor unit, monitoring the processor unit's operating status and triggering reset protection.

[0016] The beneficial effects of this application are as follows:

[0017] In this application, the time difference between transmitting and receiving ultrasonic waves is measured by an ultrasonic ranging module to determine the actual distance between the obstacle and the main body of the electrical control cabinet, realizing non-contact ranging and ensuring the timeliness of alarm triggering. Even in harsh environments such as those filled with dust, smoke, or corrosive substances, accurate measurements can be performed without error. The multimodal alarm module is used in conjunction with the ultrasonic ranging module. By triggering the alarm function of the ultrasonic ranging module, a multimodal alarm is generated, realizing a multi-level verification and confirmation mechanism, reducing the possibility of false alarms, and providing diverse alarm signals. Even in noisy or poor visibility environments, alarm information can be received normally. Relying on the communication module, the intelligent safety alarm device of the electrical control cabinet has remote monitoring and management functions, significantly enhancing the rapid response capability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below:

[0019] Figure 1 This is a schematic diagram of the structure of an intelligent safety alarm device for an electrical control cabinet provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of an ultrasonic ranging module according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of another ultrasonic ranging module provided according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of a temperature unit according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of a signal conditioning circuit according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the structure of an alarm module according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the structure of a communication module provided according to an embodiment of this application. Detailed Implementation

[0026] To make the technical objectives, technical solutions, and beneficial effects of this application clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application; that is, the described embodiments are only a part of the embodiments of this application, and not all of them. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Figure 1 This is a schematic diagram of the structure of an intelligent safety alarm device for an electrical control cabinet provided in an embodiment of this application. Figure 1 As shown, the intelligent safety alarm device for the electrical control cabinet includes, but is not limited to, the main body of the electrical control cabinet, an ultrasonic ranging module, an alarm module, and a communication module, wherein:

[0028] The ultrasonic ranging module, mounted on the main body of the electrical control cabinet, measures distances to the surrounding environment. It emits ultrasonic waves and receives the reflected signals to measure distance. When the ultrasonic waves encounter an obstacle, they are reflected back and received by the ranging module. By calculating the time difference between transmission and reception, the actual distance between the obstacle and the main body of the electrical control cabinet is determined. An alarm module connects to the ultrasonic ranging module. When the ultrasonic ranging module triggers the alarm function, it can provide multi-modal alarms, including sound, light, and voice alerts. A communication module connects to the alarm module, establishing a communication link between the intelligent safety alarm device of the electrical control cabinet and external devices. This communication module enables the intelligent safety alarm device of the electrical control cabinet to have remote monitoring and management functions.

[0029] It should be noted that the ultrasonic ranging module can be installed externally on the main body of the electrical control cabinet to accurately measure the distance to obstacles in the surrounding environment. The installation location should avoid the electrical components and wiring inside the cabinet to prevent interference and damage. Alternatively, brackets or fasteners can be used to secure the ultrasonic ranging module to the cabinet body, ensuring stability and preventing it from easily falling off. During installation, the transmission and reception angles of the ultrasonic ranging module should be considered to ensure coverage of the required measurement range. The performance of the ultrasonic ranging module may be affected by environmental factors such as temperature, humidity, and wind speed; therefore, these factors should be considered and appropriate calibrations performed during use.

[0030] Alternatively, as an example, Figure 2 This is a schematic diagram of an ultrasonic ranging module provided according to an embodiment of this application. Figure 2As shown, the ultrasonic ranging module includes an ultrasonic generator, an ultrasonic receiver, a main control unit, a timer, a judgment unit, and an alarm execution unit. The ultrasonic generator emits ultrasonic signals around the main body of the electrical control cabinet, generating ultrasonic signals through vibration, which then propagate in the air or other media. The ultrasonic receiver receives the ultrasonic signals generated by the generator and reflected back by obstacles, converting the received ultrasonic signals into electrical signals using the piezoelectric effect. The timer, connected to the ultrasonic generator and receiver, records the time difference between the ultrasonic signal transmission and reception. Timing begins simultaneously with the ultrasonic generator's emission of the ultrasonic signal and stops when the ultrasonic receiver receives the emitted ultrasonic signal. The main control unit, connected to the timer, determines the actual distance between the obstacle and the main body of the electrical control cabinet based on the time difference recorded by the timer. The main control unit includes a digital signal processor, a microcontroller unit, and an ARM processor; the configuration of the main control unit should be selected according to the specific application scenario. The main control unit can calculate the distance using the formula (distance = speed of sound × time difference / 2) based on the speed of sound and time difference. The judgment unit is connected to the main control unit and compares the actual distance with a preset safe distance. By comparing the preset safe distance with the actual distance, it can determine whether there is a safety hazard. The alarm execution unit is connected to the judgment unit and is used to trigger the alarm function of the alarm module. For example, it receives a signal from the judgment unit. When the judgment unit determines that the abnormal situation meets the alarm standard, the alarm execution unit will be triggered, and the alarm module will execute the alarm action according to the trigger action.

[0031] Optionally, the process of triggering the alarm function includes: firstly, detecting abnormal conditions, such as infrared signals triggered by intruders, which are converted into electrical signals and transmitted to the judgment unit; after receiving the electrical signals, the judgment unit analyzes and processes them, for example, the judgment unit will determine whether the actual record reaches the alarm standard based on the preset safe distance; if it is determined that the abnormal condition reaches the alarm standard, the judgment unit will send a signal to the alarm execution unit, which will then trigger the alarm function.

[0032] Alternatively, as an example, Figure 3 This is a schematic diagram of another ultrasonic ranging module provided according to an embodiment of this application. Figure 3As shown, the ultrasonic ranging module also includes a temperature unit connected to the main control unit. This temperature unit monitors the ambient temperature in real time and transmits the monitored temperature to the main control unit. Since the speed of ultrasonic signal propagation in air is affected by temperature, generally, the higher the temperature, the greater the speed of sound. Therefore, it is necessary to establish a correspondence between the speed of sound and temperature. This correspondence is usually established by measuring the ultrasonic propagation speed at different temperatures and storing the data in the main control unit as calibration data. During ranging, the main control unit adjusts the ultrasonic signal propagation speed based on the real-time measured ambient temperature and the stored calibration data. This is typically achieved through a lookup table or an interpolation algorithm. The lookup table is a pre-calculated table showing the correspondence between the speed of sound and temperature; the main control unit looks up the corresponding speed of sound value based on the current temperature. The interpolation algorithm is used to interpolate between lookup tables to obtain a more accurate speed of sound value. The method for adjusting the ultrasonic signal propagation speed should be selected based on the specific application scenario. The adjusted speed of sound is used to calculate the ultrasonic ranging result. The ranging formula is usually based on the time difference (the time it takes for the ultrasonic wave to travel from emission to reception) and the speed of sound to calculate the distance.

[0033] Furthermore, as an example, Figure 4 This is a schematic diagram of a temperature unit according to an embodiment of this application. The temperature unit includes a temperature sensor, a signal conditioning circuit, and an analog-to-digital converter. The temperature sensor is used to monitor the ambient temperature in real time. Specifically, the temperature sensor can be a thermocouple, a thermistor, a platinum resistance thermometer, or an infrared temperature sensor. The type of temperature sensor should be selected according to the specific application scenario.

[0034] like Figure 4 As shown, the signal conditioning circuit is connected to the temperature sensor to amplify, filter, and linearize the ambient temperature. Specifically, as an example, Figure 5 This is a schematic diagram of a signal conditioning circuit according to an embodiment of this application. Figure 5 As shown, the conditioning circuit includes an operational amplifier, a filter, and a linear amplifier. The operational amplifier is connected to the temperature sensor; the filter is connected to the operational amplifier, and the filter includes RC filters and RLC filters. The filter configuration should be selected according to the specific application scenario; the linear amplifier is connected to the filter.

[0035] like Figure 4 As shown, the analog-to-digital converter is connected between the signal conditioning circuit and the main control unit, converting the output signal of the signal conditioning circuit into an analog-to-digital signal for the main control unit to perform temperature calibration.

[0036] It should be further noted that the ultrasonic ranging module can also be configured using application-specific integrated circuits (ASICs, which are integrated circuits designed and manufactured for specific user requirements and systems; in this embodiment, the integrated circuit is characterized as a stability detection circuit), IP cores (intelligent property cores, which are mature designs of circuit modules with independent functions in chip or integrated circuit designs; these circuit designs can be applied to other chip or integrated circuit design projects that include the circuit module, thereby reducing the design workload, shortening the design cycle, and improving the success rate of chip or integrated circuit design; IP cores are classified into three levels: behavioral, structural, and physical, thus corresponding to three types of IP cores: soft cores designed with hardware description languages, solid cores that complete structural descriptions, and hard cores based on physical descriptions and verified by processes), etc. The specific configuration methods will not be elaborated here. As long as the actual distance between the obstacle and the main body of the electrical control cabinet can be determined by measuring the time difference between transmitting and receiving ultrasonic waves, any configuration method of the ultrasonic ranging module is applicable and is not limited to this embodiment.

[0037] Alternatively, as an example, Figure 6 This is a schematic diagram of the structure of an alarm module according to an embodiment of this application. Figure 6 As shown, the alarm module includes a voice announcement unit, a light signal unit, and an AI voice recognition unit. The voice announcement unit is connected to the ultrasonic ranging module and plays preset voice information for real-time announcement when the ultrasonic ranging module triggers the alarm function. The light signal unit is connected to the ultrasonic ranging module and provides visual reminders when the ultrasonic ranging module triggers the alarm function. The AI ​​voice recognition unit is connected to the voice announcement unit and the light signal unit, and identifies keywords and emotional changes in obstacles, adjusting the alarm strategy based on the recognition results.

[0038] It should be noted that the voice warning unit is the component in the alarm module used to issue voice warnings. When the ultrasonic ranging module detects an obstacle too close or that it has reached a preset safety threshold, it will trigger the alarm function. At this time, the voice warning unit will play a preset voice message, such as "Attention, there is an obstacle ahead," to provide real-time warnings and remind relevant personnel to pay attention to safety. The light signal unit is another important alarm component, used to provide visual alerts. Similar to the voice warning unit, the light signal unit will light up when the ultrasonic ranging module triggers the alarm function, usually a red or yellow warning light, to attract people's attention. This visual alert is especially important in noisy or visually limited environments, ensuring that people notice potential dangers even if they cannot hear the voice warning. The AI ​​voice recognition unit is used to identify keywords and emotional changes in sounds near obstacles. This recognition capability helps the system more accurately determine the nature of obstacles and the degree of potential threat. For example, the AI ​​voice recognition unit can listen to and analyze sounds near obstacles and identify specific keywords, such as "emergency" and "help." The appearance of these keywords may indicate that there is an emergency or a need for help near the obstacle. In addition to keyword recognition, the AI ​​voice recognition unit can also analyze emotional changes in sounds, such as anxiety and panic. These emotional changes may indicate potential danger or an emergency.

[0039] Based on the recognition results of the AI ​​voice recognition unit, the alarm module can dynamically adjust its alarm strategy. For example, if the AI ​​voice recognition unit identifies keywords or emotional changes indicating an emergency, the voice announcement unit may play more urgent voice messages, and the light signal unit may flash warning lights more frequently to attract more attention. If the recognition results indicate that the situation near the obstacle is not urgent, the alarm module may adopt a gentler alarm approach, such as playing a soft voice reminder, to avoid causing unnecessary panic.

[0040] It should be noted that the alarm module can also be configured using dedicated integrated circuits, IP cores, etc. The specific configuration methods will not be elaborated here. As long as multimodal alarm can be triggered when the ultrasonic ranging module triggers the alarm function, any configuration method of the alarm module is applicable and is not limited to this embodiment.

[0041] Alternatively, as an example, Figure 7 This is a schematic diagram of the structure of a communication module according to an embodiment of this application. Figure 7As shown, the communication module includes a communication interface, a routing configuration unit, a VPN private network access unit, a firewall protection unit, an NTP time calibration unit, a domain name resolution unit, a processor unit, a power supply and interface protection unit, and a watchdog timer. The communication interface is connected to the processor unit and configures the communication protocol and interface parameters. The routing configuration unit is connected to the processor unit bus. The VPN private network access unit is connected to the processor unit bus. The firewall protection unit is connected to the processor unit bus. The NTP time calibration unit is connected to the processor unit bus for time synchronization. The domain name resolution unit is connected to the processor unit bus. The power supply and interface protection unit is connected to the communication interface to provide power and provide lightning protection. The watchdog timer is connected to the processor unit to monitor the processor unit's operating status and trigger reset protection.

[0042] It should be noted that the communication module equips the intelligent safety alarm device for the electrical control cabinet in this embodiment with a relatively complete communication interface and has built-in powerful routing functions, ensuring efficient and flexible data transmission. Its core uses a high-performance processor, significantly improving instruction cycle efficiency by increasing clock frequency and optimizing parallel processing capabilities. Regarding network access, the intelligent safety alarm device supports VPN private network access, compatible with operator private network APN and virtual private network (VPN) technologies. The VPN function covers mainstream protocols such as PPTP and L2TP, providing users with diverse secure access solutions. In terms of security performance, the intelligent safety alarm device also has a built-in firewall protection mechanism, effectively improving the security level of the internal network and significantly reducing potential security risks. It also supports NTP time calibration, enabling synchronization with public network time servers to ensure accurate data transmission. Furthermore, the intelligent safety alarm device has domain name resolution capabilities, allowing users to directly access the device using domain names instead of IP addresses. This feature demonstrates a significant advantage in accurately locating the electrical control cabinet, and the identification process requires no additional cost. Considering that this intelligent safety alarm device for electrical control cabinets is primarily used in outdoor environments, its power supply and interface protection units can be specially designed to provide high-current protection and lightning strike protection, ensuring stable operation. Simultaneously, a watchdog timer ensures uninterrupted 24-hour operation, preventing downtime. Furthermore, through a communication module, this intelligent safety alarm device can seamlessly connect with users' industrial IoT projects via base stations, providing users with a convenient and efficient IoT solution.

[0043] In summary, the intelligent safety alarm device for the electrical control cabinet in this application embodiment uses an ultrasonic ranging module to measure the time difference between transmitting and receiving ultrasonic waves to determine the actual distance between the obstacle and the main body of the electrical control cabinet. This achieves non-contact ranging, ensuring timely alarm triggering. Even in harsh environments such as those filled with dust, smoke, or corrosive substances, it can perform accurate measurements. The multi-modal alarm module is used in conjunction with the ultrasonic ranging module. By triggering the alarm function of the ultrasonic ranging module, a multi-modal alarm is generated, realizing a multi-level verification and confirmation mechanism, reducing the possibility of false alarms, and providing diverse alarm signals. Even in noisy or poorly visible environments, it can ensure normal reception of alarm information. Relying on the communication module, the intelligent safety alarm device for the electrical control cabinet has remote monitoring and management functions, significantly enhancing rapid response capabilities.

[0044] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this application. Any equivalent substitutions and modifications or partial substitutions made to this application that do not depart from the spirit and scope of this application shall be covered within the scope of protection of the claims of this application.

Claims

1. An intelligent safety alarm device for an electrical control cabinet, characterized in that, include: The system comprises an electrical control cabinet body, an ultrasonic ranging module, an alarm module, and a communication module. The ultrasonic ranging module is mounted on the electrical control cabinet body and is used to determine the actual distance between an obstacle and the electrical control cabinet body by measuring the time difference between transmitting and receiving ultrasonic waves. The alarm module is connected to the ultrasonic ranging module and provides a multi-modal alarm when the ultrasonic ranging module triggers its alarm function. The communication module is connected to the alarm module to establish a communication link between the intelligent safety alarm device of the electrical control cabinet and external devices.

2. The intelligent safety alarm device for electrical control cabinets according to claim 1, characterized in that, The ultrasonic ranging module includes an ultrasonic generator, an ultrasonic receiver, a main control unit, a timer, a judgment unit, and an alarm execution unit. The ultrasonic generator emits ultrasonic signals around the electrical control cabinet body. The ultrasonic receiver receives the ultrasonic signals generated by the ultrasonic generator and reflected back by obstacles. The timer, connected to the ultrasonic generator and the ultrasonic receiver, records the time difference between the ultrasonic signal emission and reception. The main control unit, connected to the timer, determines the actual distance between the obstacle and the electrical control cabinet body based on the time difference. The judgment unit, connected to the main control unit, compares the actual distance with a preset safety distance. The alarm execution unit, connected to the judgment unit, triggers an alarm function.

3. The intelligent safety alarm device for electrical control cabinets according to claim 2, characterized in that, The ultrasonic ranging module also includes a temperature unit, which is connected to the main control unit and transmits the real-time monitored ambient temperature to the main control unit, which then performs temperature calibration on the propagation speed of the ultrasonic signal.

4. The intelligent safety alarm device for electrical control cabinets according to claim 3, characterized in that, The temperature unit includes a temperature sensor, a signal conditioning circuit, and an analog-to-digital converter. The temperature sensor is used to monitor the ambient temperature in real time. The signal conditioning circuit is connected to the temperature sensor and amplifies, filters, and linearizes the ambient temperature. The analog-to-digital converter is connected between the signal conditioning circuit and the main control unit and converts the output signal of the signal conditioning circuit into an analog signal for the main control unit to perform temperature calibration.

5. The intelligent safety alarm device for electrical control cabinets according to claim 4, characterized in that, The temperature sensor includes a thermocouple, a thermistor, and a platinum resistance thermometer.

6. The intelligent safety alarm device for electrical control cabinets according to claim 4, characterized in that, The signal conditioning circuit includes an operational amplifier, a filter, and a linear amplifier, wherein the operational amplifier is connected to the temperature sensor; the filter is connected to the operational amplifier; and the linear amplifier is connected to the filter.

7. The intelligent safety alarm device for electrical control cabinets according to claim 6, characterized in that, The filters include RC filters and RLC filters.

8. The intelligent safety alarm device for electrical control cabinets according to claim 2, characterized in that, The main control unit includes a digital signal processor, a microcontroller unit, and an ARM processor.

9. The intelligent safety alarm device for electrical control cabinets according to claim 1, characterized in that, The alarm module includes a voice announcement unit, a light signal unit, and an AI voice recognition unit. The voice announcement unit is connected to the ultrasonic ranging module and plays preset voice information for real-time announcement when the ultrasonic ranging module triggers the alarm function. The light signal unit is connected to the ultrasonic ranging module and provides visual reminders when the ultrasonic ranging module triggers the alarm function. The AI ​​voice recognition unit is connected to the voice announcement unit and the light signal unit, and identifies keywords and emotional changes in obstacles, adjusting the alarm strategy based on the recognition results.

10. The intelligent safety alarm device for electrical control cabinets according to claim 1, characterized in that, The communication module includes a communication interface, a routing configuration unit, a VPN private network access unit, a firewall protection unit, an NTP time calibration unit, a domain name resolution unit, a processor unit, a power supply and interface protection unit, and a watchdog timer. The communication interface is connected to the processor unit and configures the communication protocol and interface parameters. The routing configuration unit is connected to the processor unit bus. The VPN private network access unit is connected to the processor unit bus. The firewall protection unit is connected to the processor unit bus. The NTP time calibration unit is connected to the processor unit bus for time synchronization. The domain name resolution unit is connected to the processor unit bus. The power supply and interface protection unit is connected to the communication interface, providing power and lightning protection. The watchdog timer is connected to the processor unit, monitoring the processor unit's operating status and triggering reset protection.

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