Anti-electric shock early warning system for large machine tool

Abstract

The invention relates to the technical field of large-scale machine tool electric shock prevention, in particular to a large-scale machine tool electric shock prevention early warning system, which comprises an induction unit, a high-voltage induction module and a distance monitoring module cooperatively operating with the high-voltage induction module; the receiving unit comprises a signal processing module which is simultaneously connected with the high-voltage sensing module and the distance detection module, a communication module which is connected with the signal processing module, and an alarm module which is connected with the communication module; and the management unit comprises a dismounting module which is simultaneously connected with the high-voltage induction module and the distance detection module, and a power supply management module. The beneficial effects of the invention are that the surrounding electromagnetic field is sensed in real time through the front-end monitoring device, and when it is detected that the safe distance between the large-scale machine tool and the live-line equipment is insufficient, sound-light alarm and remote early warning can be given out in time through the rear end, so that the operation safety is significantly improved, and the risk of touching the live-line equipment by mistake is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-electric shock for large-scale machines and tools, and particularly to an anti-electric shock early warning system for large-scale machines and tools. Background Art

[0002] In modern power systems, substations, as key nodes for power transmission and distribution, their safe operation is crucial for the stability of the entire power grid. However, in the daily work of substations, when using large-scale machines and tools such as cranes and aerial work platforms for tasks such as equipment hoisting, maintenance, and aerial work, there are some deficiencies in the existing technologies. These deficiencies mainly include that the vision of operators is restricted, especially on the crane arm or the platform of the aerial work platform, making it difficult to comprehensively observe the surrounding environment, increasing the risk of misoperation. At the same time, the structural characteristics of large-scale machines and tools result in blind spots for operators during the operation process. These blind spots may prevent operators from timely discovering and avoiding live equipment, thus triggering safety accidents. In addition, there are numerous equipment and complex layouts in substations, and there are live equipment with various voltage levels, which makes the movement and operation of large-scale machines and tools more difficult and increases the possibility of accidentally touching live equipment. In the existing substation operations, there is a lack of an effective safety early warning system. Especially when large-scale machines and tools approach live equipment, it is impossible to timely remind operators, resulting in potential safety hazards. Once accidents such as accidentally touching live equipment occur, it will not only cause equipment damage and operation interruption, but may also trigger power system failures and even threaten the lives of operators. At the same time, it is difficult to achieve real-time monitoring of large-scale machine operations in substations, and it is difficult for supervisors to comprehensively grasp the operation situation, increasing the difficulty of safety management. Summary of the Invention

[0003] In view of the problems existing in the above or the prior art, the present invention is proposed.

[0004] Therefore, the purpose of the present invention is to provide an anti-electric shock early warning system for large-scale machines and tools, which can solve the problem of high risk of accidentally touching live equipment caused by vision limitation, blind spot problems, environmental complexity, insufficient safety early warning, and large supervision difficulty when using large-scale machines and tools for operations in substations.

[0005] To solve the above technical problems, the present invention provides the following technical solution: An anti-electric shock early warning system for large-scale machines and tools, which includes an induction unit, including a high-voltage induction module and a distance monitoring module that operates in coordination with the high-voltage induction component;

[0006] A receiving unit, including a signal processing module connected to both the high-voltage induction module and the distance detection module, a communication module connected to the signal processing module, and an alarm module connected to the communication module;

[0007] A management unit, including a disassembly and assembly module connected to both the high-voltage induction module and the distance detection module, and a power management module.

[0008] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the high-voltage induction module includes a high-voltage inductor, which is used to detect the existence of a high-voltage electric field and trigger the alarm mechanism in time when it detects that the large-scale machine is approaching a live device.

[0009] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the distance monitoring module includes a sensor, which is used to measure the distance between the large-scale machine and the live device, or the position information of the machine, and works in cooperation with the high-voltage inductor.

[0010] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the signal processing module includes a controller and a processor.

[0011] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the controller receives signals from the high-voltage induction component and the distance detection component and performs preliminary processing;

[0012] The processor further analyzes the signals from the high-voltage induction component and the distance detection component to determine whether to trigger an alarm.

[0013] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the communication module includes a signal receiver, which is responsible for transmitting the received signal to the signal processing module.

[0014] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the communication module is arranged between the high-voltage induction module and the distance monitoring module and the signal processing module, aggregates the signals collected from the high-voltage induction module and the distance detection module, and transmits all the aggregated signals to the signal processing module for processing.

[0015] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the alarm module includes an alarm, which alarms by means of sound and light after receiving the alarm instruction issued by the processor.

[0016] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the disassembly and assembly module includes a magnetic switch, which is used to realize the quick installation and removal of the high-voltage induction module and the distance monitoring module.

[0017] As a preferred embodiment of the large-scale machine anti-electric shock warning system of the present invention, wherein: the power management module includes a power supply, which provides a stable power supply for the entire warning system to ensure that all components can work normally.

[0018] Advantages of the present invention: The present invention can sense the surrounding electromagnetic field in real time through the front-end monitoring device. When the safety distance between large-scale machines and charged equipment is insufficient, it can promptly issue an audible and visual alarm and a remote warning through the back-end, thereby significantly improving the operation safety and reducing the risk of accidentally touching the charged equipment. In addition, through the quick installation and removal design, it can flexibly adapt to different operation environments and machines, enhancing the stability of the power grid operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0020] Figure 1 It is a schematic diagram of the monitoring and alarm circuit of the anti-electric shock warning system for large-scale machines.

[0021] Figure 2 It is a schematic diagram of the power control circuit of the anti-electric shock warning system for large-scale machines.

[0022] Figure 3 It is the first implementation mode of the anti-electric shock warning system for large-scale machines.

[0023] Figure 4 It is the second implementation mode of the anti-electric shock warning system for large-scale machines. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation modes of the present invention in conjunction with the drawings of the specification.

[0025] Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation mode of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1 to 4, which is an embodiment of the present invention. This embodiment provides a large-scale machine anti-electric shock warning system, which can solve the problem of high risk of accidentally touching live equipment caused by limited vision, blind spot problems, environmental complexity, insufficient safety warning, and difficult supervision when using large-scale machines for operations in a substation.

[0029] Specifically, the induction unit 100 includes a high-voltage induction module 101 and a distance monitoring module 102 that operates in coordination with the high-voltage induction component.

[0030] The receiving unit 200 includes a signal processing module 201 that is connected to both the high-voltage induction module 101 and the distance detection module, a communication module 202 that is connected to the signal processing module 201, and an alarm module 203 that is connected to the communication module 202.

[0031] The management unit 300 includes a disassembly and assembly module 301 that is connected to both the high-voltage induction module 101 and the distance detection module, and a power supply management module 302.

[0032] Furthermore, the high-voltage induction module 101 includes a high-voltage inductor 101a, which is used to detect the presence of a high-voltage electric field and trigger the alarm mechanism in a timely manner when it detects that the large-scale machine is approaching a live equipment.

[0033] Furthermore, the distance monitoring module 102 includes a sensor 102a, which is used to measure the distance between the large-scale machine and the live equipment or the position information of the machine, and works in coordination with the high-voltage inductor 101a. The sensor 102a can be selected as an ultrasonic sensor 102a, an infrared sensor 102a, or a laser rangefinder sensor 102a according to the on-site operation requirements.

[0034] It should be noted that both the high-voltage induction module 101 and the distance monitoring module 102 are preset with safety thresholds. When the monitored values exceed the safety thresholds, the alarm mechanism will be immediately triggered to send an alarm signal to the signal processing module 201.

[0035] Furthermore, the signal processing module 201 includes a controller 201a and a processor 201b.

[0036] Furthermore, the controller 201a receives signals from the high-voltage induction component and the distance detection component and performs preliminary processing.

[0037] The processor 201b further analyzes the signals from the high-voltage induction component and the distance detection component to determine whether to trigger an alarm.

[0038] Furthermore, the communication module 202 includes a signal receiver 202a, which is responsible for transmitting the received signals to the signal processing module 201.

[0039] Further, the communication module 202 is disposed between the high-voltage induction module 101 and the distance monitoring module 102 and the signal processing module 201, aggregates the signals collected from the high-voltage induction module 101 and the distance detection module, and transmits all the aggregated signals to the signal processing module 201 for processing.

[0040] Further, the alarm module 203 includes an alarm 203a, which alarms by means of sound and light after receiving the alarm instruction issued by the processor 201b.

[0041] Further, the disassembly and assembly module 301 includes a magnetic switch 301a for realizing the rapid installation and removal of the high-voltage induction module 101 and the distance monitoring module 102.

[0042] It should be noted that the magnetic switch 301a is adapted to various large-scale machines, facilitating the rapid switching and use of the high-voltage induction module 101 and the distance monitoring module 102 between different large-scale machines, and improving work efficiency.

[0043] Further, the power supply 302a management module 302 includes a power supply 302a, which provides a stable power supply 302a for the entire warning system to ensure that all components can work properly.

[0044] The operating principle of the system circuit is as follows: Figure 1 As shown, the transmitter TX generates a modulated signal through IC1 RD627, which is coupled to the subsequent circuit through the capacitor C1. The output of IC1 is adjusted through the resistor R1 and the adjustable resistor RP. After the signal is amplified and processed by the three operational amplifier units (A1, A2, A3) of the LM324 operational amplifier, it is rectified by the diodes D1 and D2 to provide a stable voltage for the subsequent circuit. Among them, A1 and A2 are used for the primary amplification and filtering of the signal, and A3 is used for further signal processing or as a comparator. When the signal meets certain conditions, the SCR conducts, driving the speaker B to emit sound to achieve the alarm function.

[0045] As Figure 2 shown, the rectifier DF converts alternating current into direct current to provide power supply 302a for the circuit. The voltage regulator E2 provides a stable voltage for the subsequent circuit. The motor M2 is controlled to start and stop through the switch S2 and is used to drive the front-end mechanical device in the circuit, such as a crane or an aerial work platform in a substation. The resistor WR is used for current limiting or voltage division to protect other components in the circuit. The overall circuit is used for the rectification and voltage stabilization of the power supply 302a and the control of the motor, and Figure 1 cooperates with the circuit shown in Figure 1 to form a complete system control circuit, where Figure 2 the circuit diagram is responsible for monitoring and alarming,

[0046] During use, the high-voltage inductor 101a and the sensor 102a continuously monitor the electromagnetic field and distance information around the large-scale machine. Meanwhile, the controller 201a collects data from the high-voltage inductor 101a and the sensor 102a through the signal receiver 202a, including the electromagnetic field intensity and the distance to the energized equipment. Further, the controller 201a preliminarily processes the collected data to determine whether the large-scale machine is approaching the energized equipment to an unsafe distance. If it is detected that the distance between the large-scale machine and the energized equipment is less than the preset safety distance, the controller 201a triggers an alarm signal, and the alarm signal is sent to the signal receiver 202a at the backend through wireless communication. After receiving the alarm signal from the front end, the processor 201b confirms it and sends the alarm signal to the alarm module 203, triggering the alarm 203a. After receiving the instruction from the processor 201b, the alarm 203a emits an audible and visual alarm to remind the guardians and drivers to pay attention to safety.

[0047] When the guardians and drivers hear the alarm, they take corresponding measures, such as stopping the operation, adjusting the position of the machine, etc., to ensure safety. After confirming safety, the system can be reset to prepare for the next monitoring.

[0048] In summary, through the front-end monitoring equipment, the present invention can continuously sense the surrounding electromagnetic field in real time. When it detects that the safety distance between the large-scale machine and the energized equipment is insufficient, it can promptly issue an audible and visual alarm and a remote warning through the backend, thereby significantly improving the operation safety and reducing the risk of accidentally touching the energized equipment. In addition, through the quick installation and removal design, it can flexibly adapt to different working environments and machines, enhancing the stability of the power grid operation.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (such as changes in the installation arrangement, use of materials, color, orientation, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or re-ordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0050] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described.

[0051] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development efforts will be a routine task of design, fabrication, and production without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A large-scale machine tool anti-electric shock warning system, characterized in that: include, A sensing unit (100) comprising a high-voltage sensing module (101) and a distance monitoring module (102) operating in coordination with the high-voltage sensing component; A receiving unit (200) comprising a signal processing module (201) connected to the high-voltage sensing module (101) and the distance detection module, a communication module (202) connected to the signal processing module (201), and an alarm module (203) connected to the communication module (202); The management unit (300) comprises a disassembly module (301) connected to the high-voltage sensing module (101) and the distance detection module, and a power supply (302a) management module (302).

2. The large machine tool anti-electric shock warning system as claimed in claim 1, characterized in that: The high-voltage sensing module (101) comprises a high-voltage sensor (101a) for detecting the presence of a high-voltage electric field and triggering an alarm mechanism in a timely manner when a large machine is detected to be close to an energized device.

3. The large machine tool anti-electric shock warning system as claimed in claim 2, characterized in that: The distance monitoring module (102) includes a sensor (102a) for measuring the distance between the large machine and the live equipment, or the location information of the machine, and works in coordination with the high-voltage sensor (101a).

4. The large machine tool anti-electric shock warning system as claimed in claim 3, characterized in that: The signal processing module (201) comprises a controller (201a) and a processor (201b).

5. The large machine tool anti-electric shock warning system as claimed in claim 4, characterized in that: The controller (201a) receives signals from the high-voltage sensing component and the distance detection component and performs preliminary processing; The processor (201b) further analyzes the signals from the high-voltage sensing component and the distance detection component to determine whether an alarm needs to be triggered.

6. The large machine tool anti-electric shock warning system as claimed in claim 5, characterized in that: The communication module (202) comprises a signal receiver (202a) responsible for transmitting the received signal to the signal processing module (201).

7. The large machine tool anti-electric shock warning system as claimed in claim 6, characterized in that: The communication module (202) is arranged between the high-voltage sensing module (101) and the distance monitoring module (102) and the signal processing module (201), collects the signals collected from the high-voltage sensing module (101) and the distance detection module, and transmits all the collected signals to the signal processing module (201) for processing.

8. The large machine tool anti-electric shock warning system as claimed in claim 7, characterized in that: The alarm module (203) comprises an alarm (203a) which, upon receiving an alarm instruction sent by the processor (201b), issues an alarm by means of sound and light alarm.

9. The large-scale machine tool anti-electric shock warning system according to any one of claims 1 to 8, characterized in that: The assembly and disassembly module (301) comprises a magnetic switch (301a) for realizing rapid assembly and disassembly of the high-voltage sensing module (101) and the distance monitoring module (102).

10. The large machine tool anti-electric shock warning system as claimed in claim 9, characterized in that: The power supply (302a) management module (302) includes a power supply (302a) that provides a stable power supply (302a) for the entire early warning system, ensuring that all components can operate normally.

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