A power distribution point safety warning device, method and computer program product

Abstract

This invention discloses a power distribution point safety warning device, method, and computer program product, belonging to the technical field of mine warning equipment. The device includes a sensing and detection component, a control component, an alarm component, and a power supply component. The sensing and detection component outputs a trigger signal after detecting a target object at the power distribution point entrance. The control component responds to the trigger signal and outputs a control command. The alarm component issues an alarm based on the control command. The power supply component supplies power to all components. The device also features an outer shell with explosion-proof and intrinsically safe chambers, improving safety in underground coal mines. This device effectively solves the problems of cumbersome and poorly adaptable traditional power distribution point isolation measures, achieving efficient dynamic warning, and is easy to deploy, safe, and reliable.

Description

Technical Field

[0001] This disclosure relates to the field of mine warning equipment technology, and in particular to a power distribution point safety warning device, method and computer program product. Background Technology

[0002] In the underground working environment of coal mines, power distribution points are critical areas where high-voltage electrical equipment, such as mobile substations, vacuum feeder switches, and electromagnetic starters, are centrally installed, posing significant risks of electric shock. Traditional safety measures mainly rely on installing bulky, heavy metal fences and hanging warning signs at the entrance of the power distribution point. This physical isolation method is not only cumbersome to transport, install, and dismantle, consuming a lot of manpower, but also has poor adaptability in the space-constrained underground environment, making it difficult to achieve efficient and dynamic safety warnings.

[0003] Therefore, there is an urgent need to provide a power distribution point warning device that is easy to deploy, low in cost, and safe and reliable, in order to address the shortcomings of traditional power distribution point isolation technology. Summary of the Invention

[0004] This disclosure provides a power distribution point safety warning device, method, and computer program product.

[0005] In a first aspect, this disclosure provides a power distribution point safety warning device, including a sensing and detection component, a control component, an alarm component, and a power supply component; The sensing and detection component is located at the entrance of the power distribution point and is electrically connected to the control component. It is configured to output a trigger signal after detecting a target object. The control component, electrically connected to the sensing and alarm components, is configured to output control commands in response to a trigger signal from the sensing component; An alarm component, electrically connected to the control component, is configured to issue an alarm in response to a control command from the control component; The power supply unit is electrically connected to and provides power to the sensing and detection unit, control unit, and alarm unit.

[0006] In some embodiments, the device further includes a housing, the interior of which includes mutually isolated explosion-proof cavities and intrinsically safe cavities, wherein the power supply assembly is disposed in the explosion-proof cavity, and the control assembly and alarm assembly are disposed in the intrinsically safe cavity.

[0007] In some embodiments, the sensing component includes an infrared emitting unit and an infrared receiving unit; An infrared emitting unit, including an infrared transmitter, is configured to continuously emit an infrared beam to an infrared receiving unit; An infrared receiving unit, including an infrared receiver, is configured to continuously receive an infrared beam emitted by an infrared emitting unit. When the infrared beam is blocked by a target object, the infrared receiving unit outputs a trigger signal.

[0008] In some embodiments, the control components include a main control unit and an extended interlocking unit; The main control unit, including a first relay, is configured to output a control command to the alarm component in response to a trigger signal from the sensing component; The extended interlocking unit includes a second relay electrically connected to an external associated device and is configured to control the external associated device in response to a trigger signal from the sensing component.

[0009] In some embodiments, the alarm component includes an audible alarm unit configured to output pre-stored safety warning audio information in sound form in response to a control command from the control component.

[0010] In some embodiments, the power supply component includes a power conversion unit configured to convert an externally input AC power supply into a DC power supply to provide adapted power to the sensing component, control component, and alarm component.

[0011] In some embodiments, a connection component is also included, comprising a relay base, internal connecting wires, and a transmission cable, the connection component being configured to provide an electrical connection between the sensing component, the control component, the alarm component, and the power supply component.

[0012] In some embodiments, an intrinsically safe cavity inside the housing is provided with a mounting rail and a removable base plate. The removable base plate is installed at the bottom of the intrinsically safe cavity in a manner that is easy to remove. The mounting rail is fixed to the removable base plate, and the control components are installed on the mounting rail.

[0013] Secondly, this disclosure provides a safety warning method for a power distribution point safety warning device, including: The infrared emitting unit emits an infrared beam, and the infrared receiving unit receives the infrared beam emitted by the infrared emitting unit. When the infrared beam emitted by the infrared emitting unit is blocked by the target object, the infrared receiving unit outputs a trigger signal to the control component. In response to the trigger signal transmitted by the infrared receiving unit, the main control unit in the control assembly outputs control commands to the alarm assembly, and the extended interlocking unit outputs interlocking commands to the electrically connected external associated devices to control the coordinated operation of the external associated devices. The alarm component responds to the control commands transmitted by the main control unit, and the audible alarm unit emits a warning sound.

[0014] Thirdly, this disclosure provides a computer program product, including a computer program that, when executed by a processor, implements the aforementioned method.

[0015] The at least one technical solution adopted in this embodiment can achieve the following beneficial effects: A sensing detection component located at the power distribution point entrance detects a target object and outputs a trigger signal; the control component responds to this signal and outputs a control command, driving the alarm component to issue an alarm, thus achieving automatic warning of the power distribution point. The power supply component provides the necessary power to each component. The explosion-proof cavity and the intrinsically safe cavity are isolated from each other; placing the power supply component in the explosion-proof cavity and the control component and alarm component in the intrinsically safe cavity effectively improves the intrinsic safety of the device underground. The control component includes a main control unit and an extended interlocking unit, enabling the device not only to trigger alarms but also to control the coordinated action of external related equipment through the extended interlocking unit, thereby achieving effective warning of the power distribution point.

[0016] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0017] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 This schematic diagram illustrates a block diagram of a power distribution point safety warning device according to an embodiment of the present disclosure; Figure 2 The diagram schematically illustrates the composition of the control components of a power distribution point safety warning device according to an embodiment of the present disclosure; Figure 3 The diagram schematically illustrates the composition of a sensing detection component of a power distribution point safety warning device according to an embodiment of the present disclosure; Figure 4 This diagram schematically illustrates the circuit connection of a power distribution point safety warning device according to an embodiment of the present disclosure. Figure 5 A flowchart illustrating a safety warning method using a power distribution point safety warning device according to an embodiment of the present disclosure is shown schematically. Figure 6 This schematically illustrates an alarm stop flowchart for a power distribution point safety warning device according to an embodiment of the present disclosure; Figure 7 An exemplary block diagram of a computer program product of a power distribution point safety warning device according to an embodiment of the present disclosure is shown schematically.

[0019] In the diagram: 101, outer casing; 102, explosion-proof cavity; 103, intrinsically safe cavity; 104, power supply assembly; 105, control assembly; 106, alarm assembly; 107, connection assembly; 108, sensing and detection assembly; 109, main control unit; 110, extended interlocking unit; 111, first relay; 111-1, normally open contact of the first relay; 112, second relay; 112-1, normally open contact of the second relay; 113, infrared transmitting unit; 114, infrared receiving unit; 115, infrared transmitter; 116, infrared receiver; 701, computer program. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.

[0021] Figure 1 A schematic block diagram illustrating the components of a power distribution point safety warning device according to an embodiment of the present disclosure is shown.

[0022] like Figure 1 As shown, the power distribution point safety warning device consists of a housing 101, a sensing and detection component 108, a control component 105, an alarm component 106, a power supply component 104, and a connection component 107. The components are electrically connected to realize the dynamic safety warning function of the power distribution point area.

[0023] The outer casing 101 serves as the load-bearing structure of this device. The interior of the outer casing 101 employs a partitioned isolation design, comprising an independent explosion-proof cavity 102 and an intrinsically safe cavity 103. The explosion-proof cavity 102 possesses explosion-proof and anti-explosion properties, limiting the diffusion of potentially dangerous energy such as sparks and high temperatures generated within it. The intrinsically safe cavity 103 adopts an intrinsically safe design, ensuring that electrical sparks and thermal effects generated during the operation of its internal components cannot ignite surrounding explosive mixtures. The electrical connection between the two cavities is achieved through a connecting assembly 107.

[0024] The sensing and detection component 108 is located at the entrance of the power distribution point and installed on both sides of the entrance to detect target objects entering the power distribution point in real time. When the sensing and detection component 108 detects a target object, it outputs a trigger signal, which is transmitted to the control component 105 via an electrical connection as a trigger condition for initiating the alarm process.

[0025] The control component 105 is electrically connected to the sensing and detection component 108 and the alarm component 106, and undertakes the functions of signal reception, processing, and control command output. It includes a main control unit 109 and an extended interlocking unit 110. After receiving the trigger signal from the sensing and detection component 108, the main control unit 109 outputs a control command to the alarm component 106. The extended interlocking unit 110 establishes an electrical connection with external related equipment, such as power distribution point access control devices, and outputs interlocking commands to the external related equipment after receiving a trigger signal, realizing coordinated control between the alarm and external equipment.

[0026] The main control unit 109 corresponds to the first relay 111 in the device. Its coil end is electrically connected to the signal output end of the infrared receiving unit 114. Upon receiving the trigger signal from the infrared receiving unit 114, it immediately activates, and the normally open contact 111-1 of the first relay closes, outputting a control command to the voice broadcast module of the alarm component 106. The extended interlocking unit 110 corresponds to the second relay 112. The coil end of this relay is synchronously connected to the signal output end of the infrared receiving unit 114. Upon receiving the trigger signal, it synchronously activates, and its normally open contact 112-1 closes, outputting an interlocking command to external related equipment such as a power distribution point access control device, thereby realizing the coordinated operation of external equipment and this device.

[0027] The alarm component 106 is electrically connected to the control component 105 and is used to output safety warning information. Its core is an audible alarm unit. The audible alarm unit pre-stores safety warning audio for power distribution points. After receiving control commands from the control component 105, it converts the audio information into a sound signal and outputs it.

[0028] The power supply component 104 is electrically connected to the sensing and detection component 108, the control component 105, and the alarm component 106, providing stable power to each component. It includes a power conversion unit that converts externally input 127V AC power into 24V DC power suitable for each component, and simultaneously provides overvoltage protection, overcurrent protection, and short-circuit protection functions to ensure power supply stability and component electrical safety.

[0029] The connection assembly 107 consists of a relay base, internal connecting wires, and transmission cables, used to achieve electrical connections between various components. The relay base provides a standardized wiring interface to ensure connection reliability and ease of maintenance; the internal connecting wires are used to connect components within the same cavity and use wear-resistant and aging-resistant insulated wires; the transmission cables are used for connections across cavities or to external devices, such as the sensing and detection assembly 108 and the control assembly 105, and the extended interlocking unit 110 and external associated devices. The outer layer is provided with a wear-resistant and corrosion-resistant protective layer, suitable for humid and dusty underground environments.

[0030] The intrinsically safe cavity 103 is equipped with a removable base plate and mounting rails. The removable base plate is fixed to the bottom of the intrinsically safe cavity 103 by clips or quick-release screws, allowing for quick disassembly. The mounting rails are fixed to the removable base plate, and the control component 105 is mounted via the rails, enabling component position adjustment and quick assembly / disassembly, reducing maintenance difficulty. Specifically, the installation structure is as follows: the removable base plate is connected to pre-drilled holes on the bottom of the intrinsically safe cavity 103 using screws; the mounting rails are fixed to pre-drilled holes on the removable base plate using bolts; the control component 105 is secured to the mounting rails via a clip structure, which can slide along the length of the rails and is fixed by positioning screws. The installation position can be adjusted according to the internal space of the intrinsically safe cavity 103 and wiring requirements, adapting to the installation environment of different power distribution points.

[0031] Figure 2 The diagram schematically illustrates the composition of the control components of a power distribution point safety warning device according to an embodiment of the present disclosure.

[0032] like Figure 2 As shown, the control component 105 is the core component of the device for signal processing and command output. It consists of a main control unit 109 and an extended interlocking unit 110. Both are electrically connected to the sensing and detection component 108 through the connection component 107 and can synchronously receive the trigger signal transmitted by the sensing and detection component 108.

[0033] The main control unit 109 is centered around a first relay 111, whose coil terminal is electrically connected to the signal output terminal of the infrared receiving unit 114 in the sensing and detection component 108. When the infrared receiving unit 114 outputs a trigger signal, the coil of the first relay 111 is energized and closed, the normally open contact 111-1 of the first relay closes, and a control command is output to the alarm component 106, driving the alarm component 106 to perform an alarm action.

[0034] The extended interlocking unit 110 is centered around the second relay 112. The coil of the second relay 112 is connected in parallel to the coil of the first relay 111 to the signal output of the infrared receiving unit 114, enabling it to respond synchronously to trigger signals with the main control unit 109. The extended interlocking unit 110 is electrically connected to external related devices, such as access control devices at power distribution points, through the contacts of the second relay 112. When a trigger signal is received, the coil of the second relay 112 is energized and closed, and the normally open contact 112-1 of the second relay closes, outputting an interlocking command to the external related devices, controlling the external related devices to act in concert, and forming a linkage warning mechanism.

[0035] Both the main control unit 109 and the extended interlocking unit 110 are mounted on the mounting rails of the intrinsically safe cavity 103 within the housing 101. A reliable electrical connection to the connecting assembly 107 is achieved via a relay base, facilitating not only installation and fixation but also subsequent maintenance and replacement. Their coordinated operation allows the device to provide direct warnings via the alarm assembly 106 and enhance the warning effect through coordinated actions of external associated devices, effectively improving the safety warning level of the power distribution point.

[0036] Figure 3 The diagram schematically illustrates the composition of a sensing detection component of a power distribution point safety warning device according to an embodiment of the present disclosure.

[0037] like Figure 3 As shown, the sensing and detection component 108 is the core functional part of this device to realize automatic alarm. It specifically includes two working functional units: an infrared emitting unit 113 and an infrared receiving unit 114.

[0038] The infrared emitting unit 113 integrates an infrared emitter 115. This infrared emitter 115 is configured to continuously and stably emit an infrared beam in a specific direction. The infrared emitting unit 113 is typically installed on one side of the power distribution point entrance area.

[0039] The infrared receiving unit 114 is responsible for receiving signals from the infrared emitting unit 113 and determining the status. The infrared receiving unit 114 integrates a corresponding infrared receiver 116. This infrared receiver 116 is configured to continuously receive the infrared beam emitted by the infrared emitting unit 113. Under normal operating conditions, i.e., when no object blocks the path of the infrared beam, the infrared receiver 116 will continuously receive a stable infrared beam signal.

[0040] The working principle of the sensing and detection component 108 is based on the detection of infrared beam obstruction. When a target object enters the power distribution point entrance area and blocks the beam transmission path between the infrared emitting unit 113 and the infrared receiving unit 114, the infrared beam is blocked by the target object. At this time, the infrared receiving unit 114 will immediately detect a significant change or complete interruption of the infrared beam signal. This state change can be identified by the infrared receiving unit 114 as a valid triggering event.

[0041] Once the infrared beam is detected to be blocked, the infrared receiving unit 114 responds and generates a trigger signal. This trigger signal is transmitted in real time and accurately to the control component 105 of the device via the connection component 107, serving as the initiation command for subsequent alarm and interlocking actions.

[0042] The sensing and detection component 108 of this device adopts the non-contact infrared beam principle, which has the characteristics of fast response speed, strong resistance to ambient light interference, and relatively simple installation and maintenance. It is particularly suitable for dynamic target detection at the entrance of underground power distribution point.

[0043] Figure 4 The schematic diagram illustrates a circuit connection diagram of a power distribution point safety warning device according to an embodiment of the present disclosure.

[0044] like Figure 4 As shown, the circuit connection of the power distribution point safety warning device is based on the power supply component 104 as the core power supply node, forming a complete power transmission and signal interaction network. Each component is electrically connected through the connection component 107, which can ensure that the device operates stably and reliably in the complex environment of underground coal mines.

[0045] The power supply component 104 is the core of the entire device's power supply, and the power conversion unit within it performs the function of power adaptation. Based on the power supply environment of underground coal mines, the power conversion unit can convert the externally input 127V AC power into the 24V DC power required by each component of the device to meet the stability requirements of each component's power consumption. The converted DC power is then transmitted to the sensing and detection component 108, the control component 105, and the alarm component 106 via the connection component 107.

[0046] The sensing and detection component 108 is deployed at the power distribution point entrance and is responsible for real-time monitoring of the target object. When the sensing and detection component 108 detects the target object, its internal circuit generates a trigger signal, which is transmitted to the control component 105 through the connection component 107.

[0047] The control component 105, acting as the core of signal processing and command output, simultaneously executes two operations upon receiving the trigger signal from the sensing component 108. The main control unit 109 outputs control commands to the alarm component 106 via internal connection lines. Simultaneously, the extended interlocking unit 110 outputs interlocking commands to electrically connected external devices, such as power distribution point access control devices, via the connection component 107, to achieve coordinated operation between external devices and the system.

[0048] Upon receiving a control command from the main control unit 109, the alarm component 106 drives the built-in audible alarm unit to operate. Based on pre-stored safety warning audio, the audible alarm unit converts the audio signal into a sound signal for output upon triggering the control command, ensuring clear identification in the downhole environment.

[0049] Electrical connections between components are achieved through connection component 107. The relay base uses a standardized interface to ensure a secure connection and easy maintenance. Internal connection wires are fixedly laid out within the intrinsically safe cavity 103 to avoid signal interference caused by messy tangles. Transmission cables enter and exit the cavity through a pre-reserved sealed interface on the outer shell 101. The interface is sealed to prevent dust and moisture from entering the cavity and to ensure a safe operating environment for the circuitry within the cavity.

[0050] The circuit connection of this device has a certain anti-interference capability, meets the requirements of the underground environment, and can ensure that the device can stably perform the safety warning function in the underground coal mine environment.

[0051] Figure 5 The diagram illustrates a safety warning method using a power distribution point safety warning device according to an embodiment of the present disclosure.

[0052] like Figure 5 As shown, the steps of the method include: S501, the infrared emitting unit 113 continuously emits an infrared beam to the infrared receiving unit 114, and the infrared receiving unit 114 continuously receives the infrared beam. S502, when the target object enters the power distribution point entrance area and blocks the infrared beam, the infrared receiving unit 114 detects that the infrared beam is interrupted. S503, the infrared receiving unit 114 generates a trigger signal in response to the interruption of the infrared beam and outputs the trigger signal to the control component 105; S504, the main control unit 109 in the control component 105 receives the trigger signal, generates a control command and outputs it to the alarm component 106; S505, the extended interlocking unit 110 in the control component 105 synchronously receives the trigger signal, generates an interlocking command and outputs it to the electrically connected external associated device to control its coordinated action; S506, the alarm component 106 receives the control command output by the main control unit 109 and drives the sound alarm unit to work; the sound alarm unit converts the pre-stored safety warning audio information into a warning sound.

[0053] Figure 6 The diagram illustrates an alarm stop flowchart for a power distribution point safety warning device according to an embodiment of the present disclosure.

[0054] like Figure 6 As shown, the steps of the method include: S601, when the target object leaves the power distribution point entrance area, the infrared receiving unit 114 resumes normal reception of the infrared beam and then stops outputting the trigger signal. S602, the main control unit 109 and the extended interlocking unit 110 stop outputting commands; S603, alarm component 106 stops emitting audible alarms, and external associated devices stop operating.

[0055] Figure 7 An exemplary block diagram of a computer program product of a power distribution point safety warning device according to an embodiment of the present disclosure is shown schematically.

[0056] like Figure 7 As shown, the computer program product stores a computer program 701, which, when executed by a processor, implements the method provided in any embodiment of this disclosure.

[0057] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0058] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0059] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0060] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.

[0061] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described above can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.

[0062] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0063] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A safety warning device for a power distribution point, characterized in that, It includes sensing and detection components, control components, alarm components, and power supply components; The sensing and detection component is located at the entrance of the power distribution point and is electrically connected to the control component. It is configured to output a trigger signal after detecting a target object. The control component, electrically connected to the sensing and detection component and the alarm component, is configured to output a control command in response to the trigger signal of the sensing and detection component. The alarm component is electrically connected to the control component and is configured to issue an alarm in response to the control command of the control component; The power supply component is electrically connected to and provides power to the sensing and detection component, the control component, and the alarm component.

2. The power distribution point safety warning device as described in claim 1, characterized in that, It also includes a housing, the interior of which includes an explosion-proof cavity and an intrinsically safe cavity that are isolated from each other, wherein the power supply component is disposed in the explosion-proof cavity, and the control component and the alarm component are disposed in the intrinsically safe cavity.

3. The power distribution point safety warning device as described in claim 1, characterized in that, The sensing and detection component includes an infrared emitting unit and an infrared receiving unit; The infrared emitting unit includes an infrared transmitter, configured to continuously emit an infrared beam to the infrared receiving unit; The infrared receiving unit includes an infrared receiver configured to continuously receive the infrared beam emitted by the infrared emitting unit. When the infrared beam is blocked by a target object, the infrared receiving unit outputs the trigger signal.

4. The power distribution point safety warning device as described in claim 1, characterized in that, The control components include a main control unit and an extended interlocking unit; The main control unit includes a first relay, configured to output the control command to the alarm component in response to the trigger signal of the sensing component; The extended interlocking unit includes a second relay electrically connected to an external associated device and configured to control the external associated device in response to the trigger signal of the sensing component.

5. The power distribution point safety warning device as described in claim 1, characterized in that, The alarm component includes an audible alarm unit configured to output pre-stored safety warning audio information in sound form in response to the control command of the control component.

6. The power distribution point safety warning device as described in claim 1, characterized in that, The power supply component includes a power conversion unit configured to convert externally input AC power into DC power to provide appropriate power to the sensing component, control component, and alarm component.

7. The power distribution point safety warning device as described in any one of claims 1 to 6, characterized in that, It also includes a connection component, which includes a relay base, internal connecting wires, and a transmission cable, and is configured to provide an electrical connection between the sensing component, the control component, the alarm component, and the power supply component.

8. The power distribution point safety warning device as described in claim 2, characterized in that, The intrinsically safe cavity inside the housing is provided with a mounting rail and a detachable base plate. The detachable base plate is installed at the bottom of the intrinsically safe cavity in a manner that is easy to remove. The mounting rail is fixed to the detachable base plate, and the control component is installed on the mounting rail.

9. A safety warning method for a power distribution point safety warning device, characterized in that, include: An infrared emitting unit emits an infrared beam, and an infrared receiving unit receives the infrared beam emitted by the infrared emitting unit. When the infrared beam emitted by the infrared emitting unit is blocked by the target object, the infrared receiving unit outputs a trigger signal to the control component. In response to the trigger signal transmitted by the infrared receiving unit, the main control unit in the control assembly outputs a control command to the alarm assembly, and the extended interlocking unit outputs an interlocking command to the electrically connected external associated device to control the external associated device to cooperate in operation. In response to the control command transmitted by the main control unit, the alarm component emits a warning sound.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the safety warning method of the power distribution point safety warning device as described in claim 9.

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