State monitoring system for permanent magnet lifting sucker of travelling crane

Abstract

The invention provides a state monitoring system for a permanent magnet crane chuck of a travelling crane, which comprises a PLC control module, a voice broadcast module, a state display module and an alarm module, and is characterized in that the PLC control module is used for collecting an output signal of the permanent magnet crane chuck and judging the working state of the permanent magnet crane chuck based on the output signal of the permanent magnet crane chuck; the voice broadcast module is in communication connection with the PLC control module, and the PLC control module is used for transmitting the generated working state information or alarm information of the permanent magnet lifting suction cup to the voice broadcast module in real time; the state display module is in communication connection with the PLC control module, and the PLC control module is used for transmitting the generated working state information or alarm information of the permanent magnet lifting sucker to the state display module in real time; the alarm module is in communication connection with the PLC control module. Misoperation caused by the fact that an operator confirms the state of the permanent magnet lifting suction cup mistakenly can be avoided to a great extent.

Description

Technical Field

[0001] The present invention belongs to the technical field of crane equipment, and particularly relates to a state monitoring system for a permanent magnet lifting sucker of an overhead crane. Background Art

[0002] The electromagnetic lifting sucker of a crane (overhead crane) is a key equipment for the logistics of iron and steel enterprises, and is applied to departments such as steelmaking, hot rolling, cold rolling, and finished product warehouse. In the cold rolling area, a permanent magnet lifting sucker overhead crane is used to lift vertical packaged steel coils. Due to the characteristics of this lifting method, it is necessary to constantly confirm the pre-magnetization, full magnetization, and demagnetization states of its sucker during daily production to ensure the safety of operations. Currently, in the prior art, signal lights are usually used to confirm the state of the permanent magnet lifting sucker. The signal lights are installed on the operation console in the cab of the overhead crane and under the end of one side beam of the trolley. This confirmation method will cause visual fatigue to the overhead crane operator after long-term operation, especially during night operations, and the state will be particularly poor, which may easily lead to misoperations, posing a certain risk to production safety and the safety of personnel walking nearby. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a state monitoring system for a permanent magnet lifting sucker of an overhead crane to solve the problems existing in the prior art.

[0004] To achieve the above purpose and other related purposes, the present invention provides a state monitoring system for a permanent magnet lifting sucker of an overhead crane, including a PLC control module, which is used to collect the output signal of the permanent magnet lifting sucker and judge the working state of the permanent magnet lifting sucker based on the output signal of the permanent magnet lifting sucker, so as to generate the working state information or alarm information of the permanent magnet lifting sucker. The working state information of the permanent magnet lifting sucker includes pre-magnetization state, full magnetization state, and demagnetization state; the alarm information of the permanent magnet lifting sucker includes pre-magnetization failure, full magnetization failure, and demagnetization failure; a voice broadcast module, which is communicatively connected to the PLC control module, and the PLC control module is used to transmit the generated working state information or alarm information of the permanent magnet lifting sucker to the voice broadcast module in real time; a state display module, which is communicatively connected to the PLC control module, and the PLC control module is used to transmit the generated working state information or alarm information of the permanent magnet lifting sucker to the state display module in real time; an alarm module, which is communicatively connected to the PLC control module.

[0005] Further, the PLC control module includes a signal acquisition unit, a signal processing unit, a signal output unit, and a network communication unit. Among them, the signal acquisition unit is used to acquire the output signal of the permanent magnet lifting chuck; the signal processing unit is used to perform logical judgment based on the acquired output signal of the permanent magnet lifting chuck to generate the working state information or alarm information of the permanent magnet lifting chuck; the signal output unit is communicatively connected to the alarm module; and the network communication module is communicatively connected to the voice broadcast module and the status display module.

[0006] Further, the PLC control module is also used to acquire the load information of the permanent magnet lifting chuck, and compare the load information of the permanent magnet lifting chuck with a preset load threshold. When the load information of the permanent magnet lifting chuck is greater than the preset load threshold, the PLC control module will send an alarm signal to the alarm module.

[0007] Further, the PLC control module is also used to acquire the current signal and voltage signal of the permanent magnet lifting chuck in real time.

[0008] Further, the alarm module includes a buzzer.

[0009] Further, the PLC control module is communicatively connected to the traveling crane control system.

[0010] Further, the voice broadcast module includes an information processing unit, an audio storage unit, and an audio output unit. Among them, a variety of audio information is stored in the audio storage unit, and the variety of audio information includes at least but is not limited to "the system enters the pre-magnetization state", "the system enters the full-magnetization state", "the system enters the demagnetization state", "the system pre-magnetization fails", "the system full-magnetization fails", "the system demagnetization fails"; the information processing unit extracts the audio information corresponding to the state from the audio storage unit according to the received working state information or alarm information of the permanent magnet lifting chuck, and sends the audio information to the audio output unit for playback.

[0011] Further, the voice broadcast module also includes a redundant audio storage unit. The redundant audio storage unit is communicatively connected to the information processing unit, and a variety of audio information is stored in the redundant audio storage unit. The variety of audio information includes at least but is not limited to "the system enters the pre-magnetization state", "the system enters the full-magnetization state", "the system enters the demagnetization state", "the system pre-magnetization fails", "the system full-magnetization fails", "the system demagnetization fails".

[0012] Furthermore, the status display module includes a display driving unit and a display screen. Among them, the display driving unit is used to drive the display screen to display the corresponding working status information or alarm information according to the received working status information or alarm information of the permanent magnet lifting sucker.

[0013] Furthermore, a data recording unit is provided on the display screen. The data recording unit is used to record and save the duration of each displayed working status information.

[0014] As described above, the status monitoring system of the permanent magnet lifting sucker for the overhead crane of the present invention has the following beneficial effects: During operation, through the voice broadcast module set inside the cab of the overhead crane, the operation status of the current permanent magnet lifting sucker is broadcast by voice, and the status display module set outside the cab of the overhead crane performs intelligent status display. While the voice is being broadcast, the current operation status or alarm information is also synchronously displayed on the status display screen, realizing a multiple feedback mechanism, further enhancing the visibility and operation safety of the system. And through the logical judgment of the PLC control module and the linkage mechanism of the alarm module with the voice broadcast module and the status display module, an alarm signal can be sent out in time, and the abnormal point can be quickly locked to avoid the expansion of abnormal phenomena, ensuring the safe and stable operation of the system, greatly improving the operation safety and the operation efficiency of the overhead crane. Description of the Drawings

[0015] Figure 1 It shows a structural block diagram of the status monitoring system of the permanent magnet lifting sucker for the overhead crane provided by the present invention.

[0016] Figure 2 It shows a schematic diagram of the status monitoring system of the permanent magnet lifting sucker for the overhead crane provided by the present invention during operation.

[0017] Description of the Reference Numerals

[0018] 10 PLC control module

[0019] 101 Signal acquisition unit

[0020] 102 Signal processing unit

[0021] 103 Signal output unit

[0022] 104 Network communication unit

[0023] 20 Voice broadcast module

[0024] 201 Information processing unit

[0025] 202 Audio storage unit

[0026] 203 Audio output unit

[0027] 204 Redundant Audio Storage Unit

[0028] 30 Status Display Module

[0029] 301 Display Driver Unit

[0030] 302 Display Screen

[0031] 40 Alarm Module

[0032] 100 Permanent Magnet Lifting Sucker Specific Embodiment

[0033] The following uses specific specific examples to illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present invention is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] Please refer to Figures 1 to 2 . It should be noted that the drawings provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0037] The present invention provides a state monitoring system for a permanent magnet lifting sucker of a traveling crane (hereinafter referred to as "monitoring system"), as Figure 1 and Figure 2 shown. The monitoring system includes a PLC control module 10, a voice broadcast module 20, a status display module 30, and an alarm module 40. Among them, the PLC control module 10 is used to collect the output signal of the permanent magnet lifting sucker 100, and based on the output signal of the permanent magnet lifting sucker 100, judge the working state of the permanent magnet lifting sucker 100, so as to generate the working state information or alarm information of the permanent magnet lifting sucker 100. Specifically, the working state information of the permanent magnet lifting sucker includes a pre-magnetization state, a full-magnetization state, and a demagnetization state, and the alarm information of the permanent magnet lifting sucker includes pre-magnetization failure, full-magnetization failure, and demagnetization failure; the voice broadcast module 20 is communicatively connected to the PLC control module 10, and the PLC control module 10 is used to transmit the generated working state information or alarm information of the permanent magnet lifting sucker to the voice broadcast module 20 in real time. The status display module 30 is communicatively connected to the PLC control module, and the PLC control module 10 is used to transmit the generated working state information or alarm information of the permanent magnet lifting sucker to the status display module 30 in real time. The alarm module 40 is also communicatively connected to the PLC control module 10, and the PLC control module 10 is used to transmit the generated alarm information of the permanent magnet lifting sucker to the alarm module 40 in real time. The alarm module 40 can issue an alarm signal based on the received alarm information.

[0038] The beneficial effects of the state monitoring system for the permanent magnet lifting sucker of the traveling crane of the present invention are: as Figure 2As shown, during operation, the operator operates the permanent magnet lifting suction cup handle in the cab of the overhead crane to send an operation instruction to the permanent magnet lifting suction cup 100. After the permanent magnet lifting suction cup 100 performs corresponding actions according to the received operation instruction, it will send out an output signal accordingly. Therefore, during operation, the PLC control module collects the output signal sent by the permanent magnet lifting suction cup 100, and can generate the working state information or alarm information of the permanent magnet lifting suction cup 100 by analyzing and judging the collected conveying signal. That is, the PLC control module 10 can judge whether the permanent magnet lifting suction cup is in the pre-magnetization state, full-magnetization state or demagnetization state, or whether the pre-magnetization fails, full-magnetization fails and demagnetization fails according to the output signal of the permanent magnet lifting suction cup. Then the PLC control module 10 sends the generated working state information of the permanent magnet lifting suction cup 100 to the voice broadcast module 20 for voice broadcast of this working state to remind the operator of the state. At the same time, the PLC control module 10 also synchronously sends the working state information of the permanent magnet lifting suction cup 100 to the state display module 30 for text display of this working state, further for the operator to confirm the state of the permanent magnet lifting suction cup and alert the operator. Thus, compared with the prior art where only signal lights are used for state confirmation, the state monitoring system of the permanent magnet lifting suction cup of the present invention can greatly improve the accuracy and alertness of the operator's confirmation of the state of the permanent magnet lifting suction cup through multiple feedbacks of voice broadcast and text display, and can largely avoid misoperations caused by the operator's misjudgment of the state of the permanent magnet lifting suction cup. At the same time, during operation, when the PLC control module judges that the pre-magnetization of the permanent magnet lifting suction cup fails, full-magnetization fails or demagnetization fails, the PLC control module will send the alarm information to the voice broadcast module 20 and the state display module 30 respectively for voice alarm (such as voice broadcasting pre-magnetization failure) and text display alarm (such as text displaying pre-magnetization failure), and the PLC control module will also send the alarm information to the alarm module 40, and the alarm module 40 will send out an alarm signal to timely notify the staff to take corresponding measures to prevent the expansion of the fault. In summary, through the state monitoring system of the overhead crane permanent magnet lifting suction cup of the present invention, the safety of operation and the efficiency of the overhead crane operation can be greatly improved.

[0039] Specifically, taking the pre-magnetization of a permanent magnet lifting chuck as an example, when performing pre-magnetization, first, the chain for hanging the permanent magnet lifting chuck 100 needs to be in a relaxed state. Then, the operator presses the "Safety Button" and then the "Pre-magnetization Button". When the permanent magnet lifting chuck performs pre-magnetization after pressing the pre-magnetization button, it will emit a first output signal. After the pre-magnetization of the permanent magnet lifting chuck 100 is completed, it will emit a second output signal. In the PLC control module 10, a set time value required from receiving the first output signal to receiving the second output signal, that is, the maximum duration required for pre-magnetization, is preset in advance. During operation, if the PLC control module 10 receives the second output signal within this set time value, the PLC control module 10 determines that the permanent magnet lifting chuck 100 is in the pre-magnetization state, and sends this pre-magnetization state information to the voice broadcast module 20 for voice broadcast: "The system is in the pre-magnetization state", and also synchronously sends this pre-magnetization state information to the status display module 30, and the status display module 30 performs text display: "The system is in the pre-magnetization state"; if the PLC control module 10 does not receive the second output signal within this set time value, the PLC control module 10 determines that the pre-magnetization of the permanent magnet lifting chuck 100 fails, and the PLC control module 10 synchronously sends this pre-magnetization failure information to the voice broadcast module 20, the status display module 30 and the alarm module 40 for status broadcast and alarm. Similarly, when performing full magnetization and demagnetization, the judgment logic of the PLC control module 10 for the full magnetization state and demagnetization state of the permanent magnet lifting chuck is the same as the above pre-magnetization state judgment logic, so it will not be elaborated here.

[0040] Preferably, as Figure 1 shown, in this embodiment, the PLC control module 10 includes a signal acquisition unit 101, a signal processing unit 102, a signal output unit 103 and a network communication unit 104. Among them, the signal acquisition unit 101 is used to acquire the output signal of the permanent magnet lifting chuck 100, the signal processing unit 102 is used to perform logical judgment based on the acquired output signal of the permanent magnet lifting chuck 100 to generate the working state information or alarm information of the permanent magnet lifting chuck. The signal output unit 103 is communicatively connected to the alarm module 40, and the network communication module 104 is communicatively connected to the voice broadcast module 20 and the status display module 30. That is, in this embodiment, when the PLC control module generates alarm information, the PLC control module 10 sends this alarm information to the alarm module 40 through the signal output unit 103, and sends this alarm information to the voice broadcast module 20 and the status display module 30 through the network communication unit 104. With such a setting, the structure is simple and the cost is low.

[0041] Specifically, as Figure 2As shown, in this embodiment, the voice broadcast module 20 is preferably arranged in the driving cab of the crane, the status display module 30 is arranged at one end of the crane girder, and the alarm module 40 is preferably arranged in the crane control room.

[0042] To further ensure the safety of the permanent magnet lifting suction cup during operation, preferably, in this embodiment, the PLC control module 10 is also used to collect the load information of the permanent magnet lifting suction cup 100, and the PLC control module 10 compares the collected load information of the permanent magnet lifting suction cup with a preset load threshold. When the actual load information of the collected permanent magnet lifting suction cup is greater than the preset load threshold, the PLC control module sends an alarm signal to the alarm module 40, so as to be able to timely notify the operator to stop the vehicle in time and avoid safety accidents.

[0043] Furthermore, to facilitate the monitoring of the stability of the permanent magnet lifting suction cup 100 during operation, preferably, in this embodiment, the PLC control module 10 is also used to collect the current signal and voltage signal of the permanent magnet lifting suction cup 100 in real time. With such a setting, during operation, the PLC control module can transmit the collected current signal and voltage signal of the permanent magnet lifting suction cup 100 in real time to the central monitoring system of the crane, so as to facilitate the remote monitoring and management of the permanent magnet lifting suction cup by the background, and also facilitate the stability analysis of the permanent magnet lifting suction cup.

[0044] Furthermore, in this embodiment, the PLC control module is communicatively connected to the crane control system. With such a setting, when the PLC control module determines that a serious fault or abnormality occurs in the permanent magnet lifting suction cup (such as overloading or electrical short circuit), the PLC control module can send an emergency stop instruction to the crane control system, so as to be able to control the entire crane equipment to stop running immediately to protect the safety of the crane equipment and personnel.

[0045] Specifically, in this embodiment, a multi-level alarm mode can be set in the alarm module 40. Exemplarily, three modes of early warning, general alarm, and emergency alarm can be set in the alarm module 40. The PLC control module 10 can respectively control the alarm module 40 to perform corresponding early warning, general alarm, or emergency alarm according to the severity of the judged fault, so that the operator can take corresponding emergency measures according to different situations. Specifically, in this embodiment, the alarm module 40 includes but is not limited to a buzzer.

[0046] Furthermore, in this embodiment, while the monitoring system of the present invention issues an alarm, the PLC control module can also generate corresponding processing suggestions or solutions by combining the fault type and a preset solution library, and display them through the status display module. Specifically, it includes: Fault diagnosis: The PLC automatically generates a diagnostic report by analyzing the sensor data and the fault signal source, pointing out the specific fault location and reason, such as "load exceeds the rated value", "status switch timeout", "voltage insufficient", etc. Solution suggestions: The PLC control module provides corresponding repair solutions according to different types of faults. For example, for overload alarms, it is recommended to reduce the load or check the equipment; for electrical faults, it prompts to check the electrical circuit or components. Historical records and analysis: All fault and alarm information will be recorded and stored for subsequent analysis and system optimization. Through such a design, the PLC control module and the alarm module achieve automated monitoring, intelligent fault diagnosis, and alarm handling of the permanent magnet lifting chuck, improving the reliability of equipment operation and ensuring that problems can be detected and effective countermeasures can be taken in complex operating environments.

[0047] Furthermore, as Figure 1 shown, in this embodiment, the voice broadcast module 20 includes an information processing unit 201, an audio storage unit 202, and an audio output unit 203. Among them, the audio storage unit 202 stores a variety of audio information. Specifically, the variety of audio information includes at least, but is not limited to, "the system enters the pre-magnetization state", "the system enters the full-magnetization state", "the system enters the demagnetization state", "the system pre-magnetization fails", "the system full-magnetization fails", "the system demagnetization fails"; the information processing unit 201 extracts the audio information corresponding to the working state information or alarm information of the permanent magnet lifting chuck received from the audio storage unit 202, and sends the audio information to the audio output unit 203 for playback. Specifically, in this embodiment, the audio storage unit 202 adopts a non-volatile memory, thereby preventing the loss of the variety of audio information stored in the audio storage unit 202 and improving the stability and lifespan of the voice broadcast module 20. Specifically, the audio output unit 203 includes a digital signal processing chip and a voice broadcaster. Among them, the digital signal processing chip digitally processes the audio information and enhances the sound quality to ensure the clarity and recognizability of voice prompts in an environment with relatively high industrial noise; the voice broadcaster adopts a high-quality dustproof and waterproof speaker to ensure the long-term stable operation of the equipment in a harsh environment and ensure that the operator in the cab of the crane or the ground personnel nearby can clearly hear the current operation status.

[0048] Specifically, during operation, the frequency and content of the voice broadcast by the voice broadcast module 20 can be preset or adjusted according to on-site requirements to ensure that the operator obtains key operation prompts during the appropriate time period.

[0049] Furthermore, in this embodiment, as Figure 1 shown, the voice broadcast module 20 further includes a redundant audio storage unit 204, which is communicatively connected to the information processing unit 201. A variety of audio information is also stored in the redundant audio storage unit 204. The variety of audio information includes at least, but is not limited to, "The system enters the pre-magnetization state", "The system enters the full-magnetization state", "The system enters the demagnetization state", "The system pre-magnetization fails", "The system full-magnetization fails", and "The system demagnetization fails". The setting of the redundant audio storage unit 204 can prevent the voice broadcast function from failing when the audio storage unit 202 fails, thus ensuring the continuous reliability of the system.

[0050] Furthermore, as Figure 1 shown, in this embodiment, the status display module 30 includes a display driving unit 301 and a display screen 302. Among them, the display driving unit 301 is used to drive the display screen 302 to display the corresponding working status information or alarm information according to the received working status information or alarm information of the permanent magnet lifting sucker. Specifically, when the display screen 302 is displaying, it will be displayed on the display screen 302 in a text scrolling manner, so as to ensure that all relevant personnel (such as operators, forklift drivers, and outbound delivery drivers) can clearly understand the current operation status.

[0051] Furthermore, in this embodiment, the display screen 302 can support multi-language or multi-symbol display to meet the needs of different working environments or personnel, further improving the flexibility and universality of operation.

[0052] Specifically, the display screen can support a variety of status displays. It can not only scroll and display three normal operation statuses and three alarm statuses, but the display screen can also display in combination with information such as operation progress and equipment failures, so that operators can make timely responses.

[0053] Specifically, in this embodiment, the display screen 302 uses a high-brightness LED or LCD panel to ensure that the information can still be readable even in a poor light or outdoor environment. And an HMI (Human Machine Interface) is also integrated in the display screen, so that it is convenient for operators to adjust the display settings in real time through touching the display screen or buttons, such as brightness adjustment, mode switching adjustment, etc. Through the HMI, operators can also troubleshoot the display screen. When the status display is abnormal or there is a communication failure, the problem source can be quickly located and troubleshooting suggestions are provided.

[0054] Furthermore, in this embodiment, a data recording unit is provided on the display screen 302. The data recording unit is used to record and save the duration of each displayed working status information. Such a setting facilitates historical status tracing in the later stage.

[0055] In summary, the state monitoring system of the permanent magnet crane sucker of the present invention realizes a multi-feedback mechanism by performing state voice broadcast and external state intelligent display on the operation state of the current permanent magnet crane sucker inside the crane cab. While the voice broadcast is being made, the current operation state or alarm information is also synchronously displayed on the state display screen, further enhancing the visibility and operation safety of the system. Moreover, through the logical judgment of the PLC control module and the linkage mechanism of the alarm module with the voice broadcast module and the state display module, an alarm signal can be sent out in a timely manner, and the abnormal point can be quickly locked to prevent the expansion of abnormal phenomena and ensure the safe and stable operation of the system, greatly improving the operation safety and the efficiency of the crane operation. Therefore, the present invention effectively overcomes various drawbacks in the prior art and has high industrial utilization value.

[0056] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A state monitoring system for a permanent magnetic suspension chuck of a vehicle, characterized in that: include: A PLC control module, wherein the PLC control module is used to collect an output signal of the permanent magnetic hanging sucker, and judge the working state of the permanent magnetic hanging sucker based on the output signal of the permanent magnetic hanging sucker, thereby generating working state information or alarm information of the permanent magnetic hanging sucker, wherein the working state information of the permanent magnetic hanging sucker includes a pre-magnetization state, a full magnetization state and a demagnetization state; and the alarm information of the permanent magnetic hanging sucker includes a pre-magnetization failure, a full magnetization failure and a demagnetization failure; A voice broadcast module, the voice broadcast module is communicatively connected with the PLC control module, and the PLC control module is used to transmit the generated working status information or alarm information of the permanent magnetic hanging sucker to the voice broadcast module in real time; A status display module, wherein the status display module is in communication with the PLC control module, and the PLC control module is used to transmit the generated working status information or alarm information of the permanent magnetic suspension sucker to the status display module in real time; An alarm module is communicatively connected with the PLC control module.

2. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The PLC control module includes a signal acquisition unit, a signal processing unit, a signal output unit and a network communication unit, wherein the signal acquisition unit is used to collect the output signal of the permanent magnetic hanging suction cup, the signal processing unit is used to perform logical judgment according to the collected output signal of the permanent magnetic hanging suction cup to generate the working status information or alarm information of the permanent magnetic hanging suction cup, the signal output unit is communicatively connected to the alarm module, and the network communication module is communicatively connected to the voice broadcast module and the status display module.

3. A state monitoring system for a permanent magnetic suspension chuck according to claim 1 or 2, characterized in that: The PLC control module is also used to collect the load information of the permanent magnetic hanging suction cup, and compare the load information of the permanent magnetic hanging suction cup with a preset load threshold. When the load information of the permanent magnetic hanging suction cup is greater than the preset load threshold, the PLC control module will send an alarm signal to the alarm module.

4. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The PLC control module is also used to collect the current signal and voltage signal of the permanent magnetic suspension suction cup in real time.

5. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The alarm module includes a buzzer.

6. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The PLC control module is in communication connection with the driving control system.

7. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The voice broadcast module includes an information processing unit, an audio storage unit and an audio output unit, wherein the audio storage unit stores a variety of audio information, and the various audio information at least includes but is not limited to "the system enters the pre-magnetization state", "the system enters the full magnetization state", "the system enters the demagnetization state", "the system pre-magnetization fails", "the system full magnetization fails", and "the system demagnetization fails"; the information processing unit extracts the audio information of the corresponding state from the audio storage unit according to the received working state information or alarm information of the permanent magnetic suspension suction cup, and sends the audio information to the audio output unit for playback.

8. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 7 is characterized in that: The voice broadcast module also includes a redundant audio storage unit, which is communicatively connected to the information processing unit, and stores a variety of audio information, including at least but not limited to "the system enters the pre-magnetization state", "the system enters the full magnetization state", "the system enters the demagnetization state", "the system pre-magnetization fails", "the system full magnetization fails", and "the system demagnetization fails".

9. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The status display module includes a display driving unit and a display screen, wherein the display driving unit is used to drive the display screen to display corresponding working status information or alarm information according to the received working status information or alarm information of the permanent magnetic suspension suction cup.

10. The state monitoring system of a permanent magnetic suspension chuck for a vehicle according to claim 1 is characterized in that: The display screen is provided with a data recording unit, and the data recording unit is used to record and save the duration of each displayed working status information.

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