A fool-proof system for preventing misoperation of starting and stopping of equipment and implementation process

Abstract

The application relates to a foolproof system and implementation process for preventing equipment start-stop misoperation, and relates to the technical field of industrial automation control and production safety. The system comprises a signal acquisition module, a logic judgment unit, an execution mechanism, a man-machine interaction interface and an emergency stop module. The application has the effect of solving the equipment misoperation problem caused by the non-standard manual confirmation process and the lack of a forced verification mechanism in the prior art.

Description

Technical Field

[0001] This application relates to the fields of industrial automation control and production safety technology, and in particular to a foolproof system and its implementation process for preventing equipment start-up and shutdown malfunctions. Background Technology

[0002] In modern industrial production, the start-up and shutdown of various process equipment (such as motors, pump sets, fans, conveyors, etc.) is the most basic and frequent operation link in the production process. At present, the start-up and shutdown operations of equipment in most production systems mainly rely on communication confirmation between the central control room operator and the on-site operator, as well as personal operating experience. This process that relies on manual confirmation has the following significant limitations: (1) High risk of human negligence: During periods of heavy workload or shift handover, operators are prone to accidental operation of adjacent or similar equipment buttons due to fatigue, lack of concentration or habitual thinking, resulting in unexpected equipment start-up or shutdown; (2) Insufficient process standardization: In the existing process, the "notification-confirmation" link between the central control room personnel and the on-site personnel lacks a mandatory and recordable verification mechanism. Verbal or instant messaging confirmation cannot form a closed loop, and there is a risk of information omission or incorrect transmission; (3) Lack of mandatory verification link: Once the operation instruction is issued in the control system, Often, the system is directly executed, and the system itself does not make secondary and automated logical judgments on the identity of the operation object (equipment number), the timing of the operation, and the current status of the equipment, and cannot effectively intercept erroneous instructions; (4) Difficulty in tracing accidents: When a misoperation accident occurs, due to the lack of detailed and tamper-proof operation logs (including the operator, time, equipment involved, confirmation process records, etc.), it is difficult to quickly locate the root cause of the problem, which is not conducive to accident analysis and responsibility determination; (5) Chain reaction risk: Equipment misoperation may not only lead to production interruption, product scrapping, and equipment damage, but more seriously, it may trigger the shutdown of environmental protection facilities, resulting in abnormal emission of pollutants and causing serious environmental pollution accidents; some equipment misoperation may even cause safety accidents such as explosions and fires; (6) Conflict between emergency response and conventional error prevention: Existing improvement schemes often overemphasize error prevention and ignore the need for emergency shutdown, resulting in operators being unable to quickly shut down the machine when major hidden dangers occur in production or equipment, which instead amplifies the consequences of the accident.

[0003] Therefore, the industry urgently needs a foolproof system and process that can enforce dual verification at the system design level, form an operational closed loop, record and trace the entire process, and quickly bypass the foolproof logic to achieve safe parking in emergency situations. Summary of the Invention

[0004] To address the problem of equipment misoperation caused by non-standard manual confirmation processes and lack of mandatory verification mechanisms in existing technologies, and to ensure that emergency shutdowns can be achieved both on-site and in the central control room in the event of major production or equipment hazards, with the system automatically recording all emergency stop operations, thereby balancing the error-proof nature of routine operations, the safety under emergency conditions, and the traceability of the entire process, this application provides an error-proof system and implementation process for preventing equipment start-up and shutdown misoperations.

[0005] Firstly, the foolproof system for preventing erroneous start-up and shutdown of equipment provided in this application adopts the following technical solution: A foolproof system for preventing erroneous operation during equipment start-up and shutdown includes a signal acquisition module, a logic judgment unit, an actuator, a human-machine interface, and an emergency stop module; The signal acquisition module is communicatively connected to the target device and control system to monitor the device's operating status parameters in real time. These status parameters include at least the device's current signal, speed signal, start / stop command signal, and emergency stop trigger signal from the emergency stop module. The signal acquisition module also collects key safety parameters during device operation, including but not limited to vibration, temperature, pressure, and harmful gas concentration, to determine whether emergency stop conditions have been met. The logic judgment unit is communicatively connected to the information acquisition module, the human-machine interface and the execution mechanism to receive and process data from each module, perform verification based on preset logic rules, and output normal execution instructions, prohibition instructions or emergency stop instructions. The actuator is connected in series in the control circuit of the equipment to physically connect or disconnect the start-stop control line of the equipment according to the output command of the logic judgment unit. The actuator is used to quickly disconnect the circuit so that the emergency stop response time is no more than 0.5 seconds. The human-machine interface includes at least a central control room operation terminal and a field operation terminal, which are used to display information to operators and receive input. The central control room operation terminal is equipped with a virtual emergency stop button and displays the emergency stop status of each device in real time. The emergency shutdown module includes: At least one on-site emergency stop button is installed in a prominent position near the target equipment, and is equipped with a protective cover to prevent accidental contact or a dual-action design. The on-site emergency stop button is directly connected to the dedicated emergency stop input port of the signal acquisition module. The virtual emergency stop button in the central control room is integrated into the central control room operation terminal; Automatic emergency stop triggering logic: The logic judgment unit automatically triggers an emergency stop when any of the following emergency stop conditions are met, based on the equipment safety parameters monitored by the signal acquisition module: A. The vibration amplitude of the equipment exceeds the preset warning value; B. The temperature of the equipment bearing exceeds the set upper limit; C. The sudden change rate of motor current exceeds the safety threshold; D. The concentration of hazardous gases or liquids leaked from the equipment exceeds safety standards; E. Safety devices such as pull rope switches or deviation switches on site are triggered; The signal transmission link is independent of the transmission path of the conventional start / stop command or adopts a redundant path designed for reliability, so as to ensure that the emergency stop signal can be reliably delivered to the logic judgment unit under any circumstances.

[0006] Preferably, the logic judgment unit has a priority arbitration logic, and the priority of the emergency stop command is higher than all regular start / stop commands and double confirmation verification process; the logic judgment unit also includes an emergency stop condition comparator, which is used to compare the real-time collected equipment safety parameters with the preset emergency stop threshold, and automatically trigger an emergency stop when any parameter exceeds the threshold.

[0007] Secondly, this application also provides a foolproof implementation process for preventing erroneous operation during equipment start-up and shutdown, comprising the following steps: S1: Standard operating procedure; S11: Operation Initiation and Initial Notification; S12: On-site triggering and central control forced verification; S13: Secondary confirmation and feedback of on-site status; S14: Execute the instruction after double confirmation; S15: Operation log recording and closed-loop management; S2: Emergency shutdown procedure; S21: Emergency stop signal acquisition and priority determination; S22: Rapid action by the executing agency; S23: Emergency stop operation is recorded by computer throughout; S24: Post-emergency stop procedures.

[0008] Preferably, step S1 further includes: S11: Operation Initiation and Initial Notification; When the central control room operator needs to start or stop a target piece of equipment according to the production plan, he first notifies the on-site operator through communication means to inform him of the operation to be performed. S12: On-site triggering and central control forced verification; Upon receiving notification, the on-site operator arrives at the target equipment and clicks the start / stop button on the equipment via the on-site operating terminal. This operation triggers a signal to the human-machine interface in the central control room, where the central control computer randomly displays a device start / stop verification box. This verification box requires the operator in the central control room to input or confirm the following key information: Equipment Number: Confirm that the equipment to be operated is accurate; Equipment location: Confirm the specific physical location of the equipment; Operational procedures: Confirm the current operating conditions and operation type of the equipment; Operation time: Confirm that the current operation matches the timing of the production plan; Only after the operator in the central control room correctly completes and confirms the above verification information will the logic judgment unit allow the operation instruction to proceed to the next step; S13: Secondary confirmation and feedback of on-site status; After the central control verification is passed, the system does not immediately shut down or start up. The system prompts the on-site operator to personally confirm again through the human-machine interface that the surrounding environment of the equipment is safe and the equipment itself is in normal condition. After the on-site operator confirms that there are no errors, the system sends a confirmation signal to the central control room through the on-site operation terminal. S14: Execute the instruction after double confirmation; Once the central control verification and on-site status confirmation are completed, the logic judgment unit issues the final execution command to the actuator, which then performs the action to complete the equipment start-up and shutdown operation. S15: Operation log recording and closed-loop management; While all the above steps are being performed, the logic judgment unit automatically records a complete operation log and stores it in an immutable storage medium. The operation log includes at least the operation time, operator, operation equipment number, operation type, and timestamps for each confirmation step.

[0009] Preferably, step S2 further includes: S21: Emergency stop signal acquisition and priority determination; The emergency stop trigger signal generated by the emergency stop module is transmitted to the signal acquisition module via a dedicated independent channel. The priority arbitration logic in the logic judgment unit immediately identifies the highest priority of the signal and unconditionally bypasses all conventional dual verification processes. Regardless of whether there is a conventional start-stop operation in progress, the conventional process is immediately stopped and the emergency stop process is initiated. S22: Rapid action by the executing agency; The logic judgment unit directly issues an emergency stop command to the actuator, which cuts off the power supply or control circuit of the equipment within 0.5 seconds to safely stop the equipment. S23: Emergency stop operation is recorded by computer throughout; At the same time an emergency stop occurs, the logic judgment unit automatically generates an unalterable emergency stop operation record and saves it in a dedicated log storage area; S24: Post-emergency stop procedures; After an emergency shutdown is completed, the equipment enters a safety lock state. The system continuously displays the "Emergency Stop Activated" warning signal on the central control room and the on-site human-machine interface, and locks the normal start-up operation. The equipment can only re-enter the standby start state after on-site personnel have checked for potential hazards, manually reset the emergency stop button, and confirmed in the central control room. The above reset process is also recorded in the log.

[0010] Preferably, the emergency stop operation record includes: Emergency stop trigger time: timestamp accurate to milliseconds; Emergency stop trigger source: Clearly record whether the trigger source is "on-site emergency button", "central control virtual button" or "automatic trigger"; Operator identification: If the emergency stop button is pressed actively on-site or in the central control room, record the corresponding personnel ID or employee number; if it is automatically triggered, record "system automatic". Equipment status at the moment of triggering: Record key parameters of the equipment such as current, speed, vibration, and temperature at the instant of emergency stop; Emergency Stop Reason Notes: If triggered manually, the system will display a note input box, allowing the operator to briefly describe the emergency reason; if triggered automatically, the trigger conditions will be automatically filled in. Event Number: The system automatically generates a unique event serial number for easy tracing.

[0011] Preferably, step S2 includes two emergency stop conditions. An emergency stop can be triggered under either of the above emergency stop conditions. The two emergency stop conditions include manual triggering and automatic system triggering.

[0012] Preferably, the personnel-initiated triggering includes on-site personnel pressing the on-site emergency stop button near the target equipment and central control room personnel clicking the virtual emergency stop button on the central control computer; the system-automatic triggering includes the logic judgment unit detecting that the equipment operating safety parameters exceed the preset emergency stop threshold and the on-site safety interlock device.

[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. This application can significantly reduce the risk of human error: By introducing a dual verification mechanism of "central control mandatory verification" and "on-site secondary confirmation", the system design forces operators to perform two independent, cross-position confirmations, which completely avoids the erroneous actions that may be caused by a single operation by a single person. Even if the on-site worker presses the wrong button or the central control personnel misread the instruction, the other verification can effectively intercept it. 2. This application can achieve closed-loop operation and traceability of the process: the complete operation process and automatically generated operation logs solidify the entire process of each equipment start-up and shutdown operation (initiation, verification, confirmation, execution) in the system. The computer recording function of emergency shutdown accurately preserves the details of emergencies, providing strong data support for accident analysis, responsibility determination and process improvement. 3. This application can ensure production and environmental safety: effectively prevent production interruption, material scrapping and equipment damage caused by accidental shutdown, especially avoid environmental accidents caused by accidental shutdown of environmental protection equipment (such as dust collectors and waste gas treatment devices). At the same time, when a real danger occurs, the emergency stop system can respond quickly to prevent the accident from escalating. 4. This application can improve management standardization: the process enforced by the system transcends the subjective arbitrariness of personnel, making the standard operating procedures (SOP) an insurmountable system logic, which greatly improves the standardization level of production management; 5. This application takes into account both conventional error prevention and emergency safety: This application integrates the double confirmation error prevention logic with an independent high-priority emergency stop module into one unit. Conventional operation is "slow but accurate", and emergency stop operation is "fast and stable". The two do not interfere with each other, which solves the problem that traditional error prevention systems may hinder emergency response. 6. This application has intelligent automatic emergency stop capability: by monitoring the equipment safety parameters in real time and comparing them with preset thresholds, the system can automatically trigger an emergency stop before the operator notices any abnormality, eliminating the accident in its infancy and further improving the intrinsic safety level; 7. This application has a complete audit traceability chain: whether it is routine operation or emergency shutdown, all actions are timestamped, recorded by operators and recorded on the status of the equipment. In particular, the emergency stop record includes the trigger source and the trigger reason (automatic over-limit or personnel remarks), which provides valuable first-hand information for subsequent safety analysis and system optimization. Attached Figure Description

[0014] Figure 1 This is a block diagram of a foolproof system for preventing erroneous operation during equipment start-up and shutdown, according to an embodiment of this application.

[0015] Figure 2 This is a typical start-stop flowchart of an embodiment of this application.

[0016] Figure 3 This is an emergency stop control logic diagram according to an embodiment of this application.

[0017] Explanation of reference numerals in the attached diagram: 1. Signal acquisition module; 2. Logic judgment unit; 3. Actuator; 4. Human-machine interface; 5. Emergency stop module. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0019] This application discloses a foolproof system to prevent erroneous operation during equipment start-up and shutdown. (Refer to...) Figure 1 , Figure 2 and Figure 3 It includes a signal acquisition module 1, a logic judgment unit 2, an execution mechanism 3, a human-machine interface 4, and an emergency stop module 5.

[0020] The signal acquisition module 1 is connected to the target equipment and control system to monitor the equipment's operating status parameters in real time. The status parameters include at least the equipment's current signal, speed signal, start / stop command signal, and emergency stop trigger signal from the emergency stop module 5. The signal acquisition module 1 also collects key safety parameters during equipment operation, including but not limited to vibration, temperature, pressure, and concentration of harmful gases, to determine whether emergency stop conditions have been met.

[0021] The logic judgment unit 2 is communicatively connected to the information acquisition module 1, the human-machine interface 4, and the execution mechanism 3 to receive and process data from each module, perform verification based on preset logic rules, and output normal execution instructions, prohibition instructions, or emergency stop instructions.

[0022] Specifically, the logic judgment unit 2 has a priority arbitration logic, in which the emergency stop command has a higher priority than all regular start and stop commands and the double confirmation verification process; the logic judgment unit 2 also includes an emergency stop condition comparator, which is used to compare the real-time collected equipment safety parameters with the preset emergency stop threshold. When any parameter exceeds the threshold, an emergency stop is automatically triggered.

[0023] The actuator 3 is connected in series in the control circuit of the equipment to physically connect or disconnect the start-stop control line of the equipment according to the output command of the logic judgment unit. The actuator 3 is used to quickly disconnect the circuit so that the emergency stop response time is no more than 0.5 seconds. The human-machine interface 4 includes at least a central control room operation terminal and a field operation terminal, which are used to display information to operators and receive input. The central control room operation terminal is equipped with a virtual emergency stop button and displays the emergency stop status of each device in real time. Emergency stop module 5 includes: At least one on-site emergency stop button is installed in a prominent position near the target equipment (e.g., no more than 1 meter from the equipment entrance), and adopts a protective cover to prevent accidental touch or a dual-action design (e.g., it must be rotated to reset after being pressed). The on-site emergency stop button is directly connected to the dedicated emergency stop input port of the signal acquisition module. The virtual emergency stop button in the central control room is integrated into the central control room operation terminal. It has an independent and prominent operation area and does not require any verification box or secondary confirmation before operation. Automatic emergency stop triggering logic: Based on the equipment safety parameters monitored by the signal acquisition module, logic judgment unit 2 automatically triggers an emergency stop when any of the following emergency stop conditions are met: A. The vibration amplitude of the equipment exceeds the preset warning value (e.g., ≥11.2mm / s). B. The temperature of the equipment bearing exceeds the set upper limit (e.g., ≥85℃); C. The sudden change rate of motor current exceeds the safety threshold (e.g., the current rises by more than 1.5 times the rated current within 3 seconds). D. The concentration of hazardous gases or liquids leaked from the equipment exceeds safety standards; E. Safety devices such as on-site pull rope switches or deviation switches are triggered.

[0024] The signal transmission link is independent of the transmission path of the regular start / stop command or adopts a redundant path designed for reliability to ensure that the emergency stop signal can be reliably delivered to the logic judgment unit 2 under any circumstances.

[0025] The implementation principle of the foolproof system for preventing equipment start-up and shutdown errors in this application embodiment is as follows: The system of this application can solve the problem of equipment misoperation caused by non-standard manual confirmation process and lack of mandatory verification mechanism in the prior art. At the same time, it ensures that in the event of major production or equipment hazards, both the site and the central control room can realize emergency shutdown, and the system automatically records all emergency stop operations, thereby taking into account the foolproofness of routine operation, the safety under emergency conditions, and the traceability of the whole process.

[0026] This application embodiment also provides a foolproof implementation process to prevent erroneous operation during equipment start-up and shutdown, including the following steps: S1: Standard operating procedure (double confirmation for start / stop) S11: Operation Initiation and Initial Notification When the central control room operator needs to start or stop a target piece of equipment according to the production plan, he first notifies the on-site operator through communication means (such as walkie-talkie or broadcast system) to inform him of the operation to be carried out.

[0027] S12: On-site triggering and central control forced verification Upon receiving notification, the on-site operator arrives at the target equipment and clicks the start / stop button on the equipment via the on-site operating terminal. This operation triggers a signal to the human-machine interface in the central control room, where the central control computer randomly displays a "Start / Stop Verification Box for XX Equipment." This box requires the operator in the central control room to input or confirm the following key information: Equipment Number: Confirm that the identity of the equipment to be operated is accurate.

[0028] Equipment location: Confirm the specific physical location of the equipment.

[0029] Operation procedure: Confirm the current operating status and operation type (start / stop) of the equipment.

[0030] Operation time: Confirm that the current operation matches the timing of the production plan.

[0031] Only after the operator in the control room correctly completes and confirms the above verification information will the logic judgment unit 2 allow the operation instruction to proceed to the next step.

[0032] S13: Secondary Confirmation and Feedback of On-Site Status After the system passes the central control verification, it does not immediately shut down or start up. Instead, the system prompts the on-site operator to personally confirm the safety of the surrounding environment and the normal status of the equipment itself (such as no abnormal vibration, no foreign objects, and the availability of start-up or shutdown conditions) through the human-machine interface 4. After the on-site operator confirms that everything is correct, the operator sends a "confirmation complete" signal to the central control room through the on-site operation terminal.

[0033] S14: Execute the instruction after double confirmation Once the central control verification (first confirmation) and the on-site status verification (second confirmation) are completed, the logic judgment unit 2 sends the final execution command to the actuator 3, and the actuator takes action to complete the start-up and shutdown operation of the equipment.

[0034] S15: Operation Log Recording and Closed Loop While all the above steps are being performed, the logic judgment unit 2 automatically records a complete operation log and stores it in an immutable storage medium. The operation log includes at least the operation time, operator (central control and field), operation equipment number, operation type (start / stop), and timestamps of each confirmation step. Thus, a complete operation loop from "intent-verification-confirmation-execution-recording" is formed.

[0035] S2: Emergency Stop Procedure (Bypass Foolproof Logic) Specifically, step S2 includes two emergency stop conditions. An emergency stop can be triggered under either of the above emergency stop conditions. The two emergency stop conditions include manual triggering and automatic system triggering.

[0036] In the specific implementation process, personnel-initiated emergency stop includes on-site personnel pressing the on-site emergency stop button near the target equipment and personnel in the central control room clicking the virtual emergency stop button on the central control computer; automatic system triggering includes the logic judgment unit 2 detecting that the equipment's operating safety parameters (vibration, temperature, current mutation rate, leakage concentration, etc.) exceed the preset emergency stop threshold and on-site safety interlock devices (such as pull rope switches, deviation switches, limit switches).

[0037] S21: Emergency Stop Signal Acquisition and Priority Determination The emergency stop trigger signal generated by the emergency stop module 5 is transmitted to the signal acquisition module 1 via a dedicated independent channel. The priority arbitration logic in the logic judgment unit 2 immediately identifies the highest priority of the signal and unconditionally bypasses all regular dual verification processes. Regardless of whether there is a regular start-stop operation in progress, the regular process is immediately stopped and the emergency stop process is initiated.

[0038] S22: Rapid action of the actuator The logic judgment unit 2 directly issues an emergency stop command to the actuator 3, and the actuator 3 cuts off the power supply or control circuit of the equipment within 0.5 seconds, so that the equipment can be safely stopped.

[0039] S23: Emergency stop operation fully recorded by computer At the same time an emergency stop occurs, logic judgment unit 2 automatically generates an unalterable emergency stop operation record and saves it in a dedicated log storage area.

[0040] Specifically, the emergency stop operation log includes: Emergency stop trigger time: timestamp accurate to milliseconds; Emergency stop trigger source: Clearly record whether the trigger source is "on-site emergency button", "central control virtual button" or "automatic trigger"; Operator identification: If the emergency stop button is pressed actively on-site or in the central control room, record the corresponding personnel ID or employee number; if it is automatically triggered, record "system automatic". Equipment status at the moment of triggering: Record key parameters of the equipment such as current, speed, vibration, and temperature at the instant of emergency stop; Emergency Stop Reason Remarks: If triggered manually, the system will pop up a remarks input box, allowing the operator to briefly describe the emergency reason (such as "bearing smoke" or "belt tear"); if triggered automatically, the system will automatically fill in the trigger conditions (such as "vibration exceeds limit by 11.5 mm / s"). Event Number: The system automatically generates a unique event serial number for easy tracing.

[0041] S24: Post-emergency stop procedures After the emergency stop is completed, the equipment enters a safety lock state. The system continuously displays the "Emergency stop activated" warning signal on the central control room and the on-site human-machine interface 4, and locks the normal start operation. The equipment can only be put back into the standby state after on-site personnel check for hidden dangers, manually reset the emergency stop button, and confirm in the central control room. The above reset process is also recorded in the log.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foolproof system for preventing erroneous operation during equipment start-up and shutdown, characterized in that: It includes a signal acquisition module, a logic judgment unit, an actuator, a human-machine interface, and an emergency stop module; The signal acquisition module is communicatively connected to the target device and control system to monitor the device's operating status parameters in real time. These status parameters include at least the device's current signal, speed signal, start / stop command signal, and emergency stop trigger signal from the emergency stop module. The signal acquisition module also collects key safety parameters during device operation, including but not limited to vibration, temperature, pressure, and harmful gas concentration, to determine whether emergency stop conditions have been met. The logic judgment unit is communicatively connected to the information acquisition module, the human-machine interface and the execution mechanism to receive and process data from each module, perform verification based on preset logic rules, and output normal execution instructions, prohibition instructions or emergency stop instructions. The actuator is connected in series in the control circuit of the equipment to physically connect or disconnect the start-stop control line of the equipment according to the output command of the logic judgment unit. The actuator is used to quickly disconnect the circuit so that the emergency stop response time is no more than 0.5 seconds. The human-machine interface includes at least a central control room operation terminal and a field operation terminal, which are used to display information to operators and receive input. The central control room operation terminal is equipped with a virtual emergency stop button and displays the emergency stop status of each device in real time. The emergency shutdown module includes: At least one on-site emergency stop button is installed in a prominent position near the target equipment, and is equipped with a protective cover to prevent accidental contact or a dual-action design. The on-site emergency stop button is directly connected to the dedicated emergency stop input port of the signal acquisition module. The virtual emergency stop button in the central control room is integrated into the central control room operation terminal; Automatic emergency stop triggering logic: The logic judgment unit automatically triggers an emergency stop when any of the following emergency stop conditions are met, based on the equipment safety parameters monitored by the signal acquisition module: A. The vibration amplitude of the equipment exceeds the preset warning value; B. The temperature of the equipment bearing exceeds the set upper limit; C. The sudden change rate of motor current exceeds the safety threshold; D. The concentration of hazardous gases or liquids leaked from the equipment exceeds safety standards; E. Safety devices such as pull rope switches or deviation switches on site are triggered; The signal transmission link is independent of the transmission path of the conventional start / stop command or adopts a redundant path designed for reliability, so as to ensure that the emergency stop signal can be reliably delivered to the logic judgment unit under any circumstances.

2. The foolproof system for preventing misoperation during equipment start-up and shutdown according to claim 1, characterized in that: The logic judgment unit is equipped with priority arbitration logic, and the emergency stop command has a higher priority than all regular start and stop commands and double confirmation verification process. The logic judgment unit also includes an emergency stop condition comparator, which is used to compare the real-time collected equipment safety parameters with the preset emergency stop threshold. When any parameter exceeds the threshold, an emergency stop is automatically triggered.

3. A process for preventing equipment start-up and shutdown errors based on the error-proofing system according to any one of claims 1-2, characterized in that, Includes the following steps: S1: Standard operating procedure; S11: Operation Initiation and Initial Notification; S12: On-site triggering and central control forced verification; S13: Secondary confirmation and feedback of on-site status; S14: Execute the instruction after double confirmation; S15: Operation log recording and closed-loop management; S2: Emergency shutdown procedure; S21: Emergency stop signal acquisition and priority determination; S22: Rapid action by the executing agency; S23: Emergency stop operation is recorded by computer throughout; S24: Post-emergency stop procedures.

4. The foolproof implementation process for preventing equipment start-up and shutdown malfunctions according to claim 3, characterized in that: Step S1 further includes: S11: Operation Initiation and Initial Notification; When the central control room operator needs to start or stop a target piece of equipment according to the production plan, he first notifies the on-site operator through communication means to inform him of the operation to be performed. S12: On-site triggering and central control forced verification; Upon receiving notification, the on-site operator arrives at the target equipment and clicks the start / stop button on the equipment via the on-site operating terminal. This operation triggers a signal to the human-machine interface in the central control room, where the central control computer randomly displays a device start / stop verification box. This verification box requires the operator in the central control room to input or confirm the following key information: Equipment Number: Confirm that the equipment to be operated is accurate; Equipment location: Confirm the specific physical location of the equipment; Operational procedures: Confirm the current operating conditions and operation type of the equipment; Operation time: Confirm that the current operation matches the timing of the production plan; Only after the operator in the central control room correctly completes and confirms the above verification information will the logic judgment unit allow the operation instruction to proceed to the next step; S13: Secondary confirmation and feedback of on-site status; After the central control verification is passed, the system does not immediately shut down or start up. The system prompts the on-site operator to personally confirm again through the human-machine interface that the surrounding environment of the equipment is safe and the equipment itself is in normal condition. After the on-site operator confirms that there are no errors, the system sends a confirmation signal to the central control room through the on-site operation terminal. S14: Execute the instruction after double confirmation; Once the central control verification and on-site status confirmation are completed, the logic judgment unit issues the final execution command to the actuator, which then performs the action to complete the equipment start-up and shutdown operation. S15: Operation log recording and closed-loop management; While all the above steps are being performed, the logic judgment unit automatically records a complete operation log and stores it in an immutable storage medium. The operation log includes at least the operation time, operator, operation equipment number, operation type, and timestamps for each confirmation step.

5. The error-proofing implementation process for preventing equipment start-up and shutdown malfunctions according to claim 3, characterized in that: Step S2 further includes: S21: Emergency stop signal acquisition and priority determination; The emergency stop trigger signal generated by the emergency stop module is transmitted to the signal acquisition module via a dedicated independent channel. The priority arbitration logic in the logic judgment unit immediately identifies the highest priority of the signal and unconditionally bypasses all conventional dual verification processes. Regardless of whether there is a conventional start-stop operation in progress, the conventional process is immediately stopped and the emergency stop process is initiated. S22: Rapid action by the executing agency; The logic judgment unit directly issues an emergency stop command to the actuator, which cuts off the power supply or control circuit of the equipment within 0.5 seconds to safely stop the equipment. S23: Emergency stop operation is recorded by computer throughout; At the same time an emergency stop occurs, the logic judgment unit automatically generates an unalterable emergency stop operation record and saves it in a dedicated log storage area; S24: Post-emergency stop procedures; After an emergency shutdown is completed, the equipment enters a safety lock state. The system continuously displays the "Emergency stop activated" warning signal on the central control room and the on-site human-machine interface, and locks the normal start operation. The equipment can only be put back into the standby state after on-site personnel check for potential hazards, manually reset the emergency stop button, and confirm in the central control room. The above reset process is also recorded in the log.

6. The foolproof implementation process for preventing equipment start-up and shutdown malfunctions according to claim 5, characterized in that: The emergency stop operation record includes: Emergency stop trigger time: timestamp accurate to milliseconds; Emergency stop trigger source: Clearly record whether the trigger source is "on-site emergency button", "central control virtual button" or "automatic trigger"; Operator identification: If the emergency stop button is pressed actively on-site or in the central control room, record the corresponding personnel ID or employee number; if it is automatically triggered, record "system automatic". Equipment status at the moment of triggering: Record key parameters of the equipment such as current, speed, vibration, and temperature at the instant of emergency stop; Emergency Stop Reason Notes: If triggered manually, the system will display a note input box, allowing the operator to briefly describe the emergency reason; if triggered automatically, the trigger conditions will be automatically filled in. Event Number: The system automatically generates a unique event serial number for easy tracing.

7. The error-proofing implementation process for preventing equipment start-up and shutdown malfunctions according to claim 5, characterized in that: Step S2 includes two emergency stop conditions. An emergency stop can be triggered under either of the above emergency stop conditions. The two emergency stop conditions include manual triggering and automatic system triggering.

8. The foolproof implementation process for preventing equipment start-up and shutdown malfunctions according to claim 7, characterized in that: The manual triggering includes on-site personnel pressing the on-site emergency stop button near the target equipment and control room personnel clicking the virtual emergency stop button on the central control computer; the automatic system triggering includes the logic judgment unit detecting that the equipment's operating safety parameters exceed the preset emergency stop threshold and the on-site safety interlock device.

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