Test processing method of multistage ship lock in-situ linkage control system

Abstract

A test processing method of a multistage ship lock in-situ linkage control system includes the steps of lock closing linkage, water delivery linkage, centralized control testing, locking detection, synchronous control, fault alarm, fault processing and the like, the centralized control system judges operation conditions after receiving instructions in situ and automatically executes the operation conditions after receiving the instructions from the in-situ information which is short instruction information. The centralized control issues a linkage water conveying operation state and a water supplementing operation state to the field, and when communication interruption or operation interruption occurs in the centralized control linkage water conveying control and centralized control water supplementing control processes, program control emergency valve closing protection is automatically executed in the field; meanwhile, faults are classified and defined, the faults are shielded, reset and confirmed under the linkage condition, and autonomous controllability in the water delivery process of the multi-stage ship lock is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of multi-stage ship lock linkage test, and relates to a test processing method for an on-site linkage control system of a multi-stage ship lock. Background Art

[0002] The on-site control system of the multi-level ship lock adopts PLC signal acquisition and output mode for control, including redundant limit switch detection, opening detection and calibration, limit delay signaling, redundant digital output, redundant analog input, redundant analog output, etc. Its control function adopts the on-site station to set the "centralized control-on-site-maintenance", "middle pier side-double sides-non-middle pier side" and "run-pause-jog" control modes; under the program control operation state of the on-site station, the "centralized control-on-site-maintenance" mode is switched by the control button or touch screen button, and the machine room on the middle pier side and non-middle pier side is switched synchronously. The system starts with the default "maintenance" control mode; "centralized control" and "on-site" modes are automatically set to "double sides" control and "run" control modes; during the operation of the gate valve, the "centralized control-on-site-maintenance" and "middle pier side-double sides-non-middle pier side" operation modes are switched to automatically terminate the current gate valve operation.

[0003] It can be seen that the control system of multi-level ship locks is relatively complex, and the key nodes mainly include gate linkage, water supply linkage, fault alarm and processing, etc. How to conduct system testing on these key nodes and how to deal with faults are the key issues currently faced. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a test and processing method for a multi-stage ship lock on-site linkage control system, to test linkage nodes in the multi-stage ship lock control process, and to summarize and process possible faults that may occur in the control process.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a test processing method for a multi-stage ship lock on-site linkage control system, comprising the following steps: S1, gate linkage, set up the gate linkage process in the local system to achieve automatic unlocking and closing of the gate; S2, water delivery linkage, set the local linkage command process, when the control conditions are met, prompt operation confirmation and start linkage control; S3, centralized control test, through communication with the centralized control system, realizes remote centralized monitoring and operation of local gate valves and anti-collision devices; including communication between centralized control PLC and local PLC, and communication between centralized control I / O server and local PLC; S4, lock detection, using hardware lock to ensure safe operation of the lock; S5, synchronous control, controls the gate waiting position, the miter gate speed change operation and the miter gate synchronous deviation correction respectively; S6, fault alarm, classifies and defines the fault; S7, fault handling, partitions, shields, resets and confirms faults.

[0006] In S1, in the gate closing linkage process, when a ship passes through the lock, a gate closing advance signal is sent, and at the same time the gate is unlocked. If the gate is unlocked, the gate is closed. When the gate is closed, a gate closing completion signal is sent.

[0007] In S2, the water transfer linkage instruction process includes: S2-1, when there is no fault in water delivery, open the valve to deliver water. If the water level is horizontal, the gate is opened and a gate opening signal is sent. When the gate is fully opened, the valve is closed and the linkage ends. S2-2, when the water delivery valve is opened, if an auxiliary valve opening water level signal or a level warning water level difference signal is received, the auxiliary valve is opened and the level warning is sent respectively; S2-3, when there is no fault in water delivery, open the valve to deliver water. If the water level is not in a horizontal state, send a water shut-off valve signal or open the water shut-off valve to the set opening to deliver water; S2-4, if there is any fault during the water delivery process, the valve will be closed urgently by program control to terminate the linkage.

[0008] In S3, the communication between the centralized control PLC and the local PLC includes: the local PLC sends the local control mode, gate valve operation information, hydraulic system operation information, anti-collision operation information and gate head water level information to the centralized control PLC, and the centralized control PLC sends control instruction information to the local PLC; the communication between the centralized control I / O server and the local PLC includes: the centralized control I / O server reads the local PLC I / O information, fault diagnosis information, complete gate head operation status information and operation parameter information from the local PLC, and the centralized control I / O server sends control instruction information and parameter setting information to the local PLC.

[0009] In S4, the lock detection includes the following steps: S4-1, the local PLC collects the signal status of each link of the locking signal transmission; S4-2: When water replenishment is required for the operation of the ship lock, if the local water replenishment permission switch is not set to water replenishment permission, a water replenishment warning is generated; S4-3, when the forced locking switch at the gate is not set to the forced locking permission, the local or centralized control software forced locking signal is automatically reset; S4-4, the local PLC generates a software locking signal based on the position information of the first gate valve of the upper and lower gates and the forced locking signal of the local or centralized control software. If it is inconsistent with the hardware locking signal, an alarm will be issued.

[0010] In S5, the gate closing waiting position control includes the following steps: SA5-1, in order to prevent the card guide from being squeezed and collided when closing the gate, the card guide should be ensured to enter synchronously when closing the gate on both sides. When closing the gate on both sides, a synchronous waiting position is set. The synchronous waiting position is determined by the opening meter. The waiting position stroke is 7100mm. The waiting position is within the range of ±15mm of the waiting position stroke. SA5-2, when the synchronization difference between the gates on both sides exceeds the set range of ±25mm, both sides will wait for unloading at the synchronization waiting position and then close the gates synchronously; SA5-3, during the gate closing process, the synchronization difference between the gates on both sides does not exceed the set range, which does not affect the synchronous closing of the gates and does not require unloading and waiting; SA5-4, when the synchronization difference between the gates on both sides exceeds the set range, the gate stroke on one side is greater than the waiting position stroke, and the gate stroke on the other side is less than the waiting position stroke, the gate is prohibited from closing; SA5-5, when one side of the opening meter fails, the waiting position cannot be determined. It is prohibited to close the gates on both sides at the same time during non-maintenance operation. The gates can be closed at a low speed during maintenance operation.

[0011] In S5, the speed change operation control of the miter gate includes the following steps: SB5-1, when the gate is opened and closed at a uniform speed, the load is saddle-shaped. When the acceleration, uniform speed and deceleration process of the gate opening and closing are controlled in the opposite direction of the saddle shape, the gate opening and closing process can achieve balanced load on the gate hoist; SB5-2, automatically calculates the acceleration and deceleration of the gate opening and closing variable speed operation according to the set uniform speed setting, acceleration and deceleration inflection point settings; SB5-3, gate speed change operation requires both gates on both sides to be opened and closed synchronously from the open end position or the closed end position; SB5-4, synchronous deviation correction control is performed during the gate speed change operation. When the stroke difference between the gates on both sides exceeds the synchronous setting value, the synchronous deviation correction and speed change control are stopped and the gate is switched to low speed operation; SB5-5, when one side of the gate is running, the gate opening meter on one side fails, the gate starts to open and close from the middle position, and the stroke difference between the gates on both sides exceeds the synchronous setting value, the gate opens and closes at a low speed; SB5-6, in the maintenance operation mode, when the gate opens and closes at a low speed, the gate opening and closing speed can be manually increased or decreased through the touch screen; SB5-7, in order to ensure the consistency of the limit switch signal when the gate stops, when the gate opening is close to the switch end position, it runs at the stopping speed.

[0012] In S5, the synchronous deviation correction control of the miter gate includes the following steps: SC5-1, when the gates on both sides are running at variable speed, synchronous deviation correction control is adopted; SC5-2, the gate on one side tracks and synchronizes with the gate on the other side to perform deviation correction control, and the gates can switch between tracking objects; SC5-3, gate synchronous deviation correction adopts PID adjustment, and PID parameters can be set; SC5-4: When the stroke difference between the gates on both sides exceeds the synchronous operation setting value, the synchronous deviation correction and speed control are stopped and the system switches to low-speed operation.

[0013] In S6, referring to the operation and maintenance habits, faults are divided into Class A faults, Class B1 faults, Class B2 faults, Class B3 faults and Class C faults; Class A faults are prompt faults and are prompted by Class A fault alarms; Class B1 faults are equipment component faults and are prompted by Class B1 fault alarms, and the operation of equipment components associated with the faults is stopped; Class B2 faults are regional faults and are prompted by Class B2 fault alarms; Class B3 faults are local substation faults and are prompted by Class B3 fault alarms; Class C faults are process protection faults and are prompted by Class C fault alarms.

[0014] In S7, faults are partitioned into PLC diagnostic fault partitions, gate fault partitions, power supply fault partitions, hydraulic fault partitions, gate fault partitions, valve fault partitions and auxiliary equipment fault partitions; for the partitioned faults, fault shielding, fault reset or fault confirmation are selectively performed.

[0015] The main beneficial effects of the present invention are: The information sent by the centralized control system to the local area is short command information. After receiving the command, the local area judges the operating conditions and automatically executes it. The centralized control sends the linkage water delivery operation status and water replenishment operation status to the local area. If communication interruption or operation interruption occurs during the centralized control linkage water delivery control and centralized control water replenishment control, the local area automatically executes the program-controlled emergency valve closing protection. The purpose of testing the local system and the centralized control interface is achieved through the centralized control function test.

[0016] Classify and define faults, shield, reset and confirm faults under linkage conditions, and achieve autonomous control of water transfer in multi-stage ship locks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 This is a flow chart of the linkage control of multi-stage ship lock closing according to the present invention.

[0019] Figure 2 This is a flow chart of the water delivery linkage control of the multi-stage ship lock of the present invention.

[0020] Figure 3 This is the current control flow chart of the present invention.

[0021] Figure 4 This is the input signal detection block diagram of the present invention.

[0022] Figure 5 This is the valve control diagram of the present invention.

[0023] Figure 6 This is a fault diagnosis diagram of the present invention.

[0024] Figure 7 This is a fault byte definition diagram of the present invention. DETAILED DESCRIPTION

[0025] like Figure 1 to Figure 7 A test processing method for a multi-stage ship lock on-site linkage control system includes the following steps: S1, gate linkage, set up the gate linkage process in the local system to achieve automatic unlocking and closing of the gate; S2, water delivery linkage, set the local linkage command process, when the control conditions are met, prompt operation confirmation and start linkage control; S3, centralized control test, through communication with the centralized control system, realizes remote centralized monitoring and operation of local gate valves and anti-collision devices; including communication between centralized control PLC and local PLC, and communication between centralized control I / O server and local PLC; S4, lock detection, using hardware lock to ensure safe operation of the lock; S5, synchronous control, controls the gate waiting position, the miter gate speed change operation and the miter gate synchronous deviation correction respectively; S6, fault alarm, classifies and defines the fault; S7, fault handling, partitions, shields, resets and confirms faults.

[0026] Embodiment 1, like Figure 1 As shown in the figure, in the gate closing linkage process, when a ship passes through the lock, a gate closing advance signal is sent, and at the same time the gate is unlocked. If the gate is unlocked in place, the gate is closed. When the gate is closed, a gate closing completion signal is sent.

[0027] The gate linkage realizes the first gate closing notice, automatic unlocking and gate closing operation of this gate.

[0028] Embodiment 2, like Figure 2 As shown, the water transfer linkage includes valve opening, water transfer, water flow valve closing, level warning, gate opening warning, gate opening, and valve closing steps.

[0029] When there is no fault in water delivery, open the valve to deliver water. If the water level is horizontal, the gate will be opened and a gate opening signal will be sent. When the gate is fully opened, the valve will be closed and the linkage will end. When the water delivery valve is opened, if the auxiliary valve water level signal is received or the level warning water level difference signal is received, the auxiliary valve is opened and the level warning is sent respectively; When there is no fault in water delivery, open the valve to deliver water. If the water level is not in a horizontal state, send a water shut-off valve signal or open the water shut-off valve to the set opening to deliver water. If any fault occurs during the water delivery process, the valve will be closed urgently by program control to terminate the linkage.

[0030] In the local linkage control mode, after receiving the local linkage command, when the linkage control conditions are met, a prompt will be displayed to confirm the operation, and the linkage control will be started after the operator confirms.

[0031] Embodiment 3, Centralized control communication includes communication between centralized control PLC and local PLC, and communication between centralized control I / O server and local PLC. By communicating with the centralized control system, remote centralized monitoring and operation of local gate valves and anti-collision devices can be realized. The purpose of inspecting the interface between the local system and centralized control can be achieved through centralized control function testing.

[0032] Communication data between centralized control PLC and local PLC: The local PLC sends the local control mode, gate valve operation information, hydraulic system operation information, anti-collision operation information, gate head water level information, etc. to the centralized control PLC; The centralized control PLC sends control instruction information to the local PLC.

[0033] Centralized control I / O server communicates with local PLC: The centralized control I / O server reads the local PLC I / O information, fault diagnosis information, complete gate operation status information, and operation parameter information from the local PLC; The centralized control I / O server sends control instruction information and parameter setting information to the local PLC.

[0034] The information sent by the centralized control system to the local site is short command information. After receiving the command, the local site determines the operating conditions and executes it automatically.

[0035] The centralized control system sends the linkage water supply operation status and water replenishment operation status to the local site. If communication interruption or operation interruption occurs during the centralized control linkage water supply control and centralized control water replenishment control, the local site will automatically execute the programmed emergency valve closing protection.

[0036] Embodiment 4, Key control technology: To ensure the safe operation of the ship lock, the local control adopts hardware locking and the locking relationship detection of the upper and lower locks: The local PLC collects the signal status of each link of the locking signal transmission to achieve safe monitoring of the locking signal; When the lock needs water replenishment during operation, if the local water replenishment permission switch is not set to water replenishment permission, a water replenishment warning is generated; When the forced locking switch at the gate is not set to the forced locking permission, the local or centralized control software forced locking signal is automatically reset; The local PLC generates a software locking signal based on the position information of the first gate valve of the upper and lower gates and the forced locking signal of the local or centralized control software. If it is inconsistent with the hardware locking signal, an alarm will be issued.

[0037] Gate closing waiting position control: In order to prevent the card guide from being squeezed and collided when closing the gate, the card guide should be ensured to enter synchronously when closing the gate on both sides. A synchronous waiting position is set when closing the gate on both sides. The synchronous waiting position is determined by the opening meter. The waiting position stroke is 7100mm. The waiting position is within the range of ±15mm of the waiting position stroke. When the synchronization difference between the gates on both sides exceeds the set range of ±25mm, both sides will wait for unloading at the synchronization waiting position and then close the gates synchronously; During the gate closing process, if the synchronization difference between the gates on both sides does not exceed the set range, it will not affect the synchronous closing of the gates and there is no need to wait for unloading; When the synchronization difference between the gates on both sides exceeds the set range, and the gate stroke on one side is greater than the waiting position stroke, and the gate stroke on the other side is less than the waiting position stroke, closing the gate is prohibited; When the opening meter on one side fails, the waiting position cannot be determined. It is prohibited to close the gates on both sides at the same time during non-maintenance operation. The gates can be closed at a low speed during maintenance operation.

[0038] Miter gate variable speed operation control: When the gate is opened and closed at a uniform speed, the load is saddle-shaped. When the acceleration, uniform speed and deceleration process of the gate opening and closing are controlled in the opposite direction of the saddle shape, the load of the gate hoist can be balanced during the gate opening and closing process. According to the set uniform speed setting, acceleration and deceleration inflection point settings, the acceleration and deceleration of the gate opening and closing variable speed operation are automatically calculated; The gate speed change operation requires that the gates on both sides are opened and closed synchronously from the open end position or the closed end position; During the gate speed change operation, synchronous deviation correction control is performed. When the stroke difference between the gates on both sides exceeds the synchronous set value, the synchronous deviation correction and speed change control are stopped and the gate is switched to low-speed operation. When one side of the gate is running, the gate opening meter on one side fails, the gate starts to open and close from the middle position, and the stroke difference between the gates on both sides exceeds the synchronous setting value, the gate opens and closes at a low speed; In the maintenance operation mode, when the gate opens and closes at a low speed, the gate opening and closing speed can be manually increased or decreased through the touch screen; In order to ensure the consistency of the limit switch signal when the gate stops, it can be set when the gate opening is close to the switch end position and run at the stopping speed.

[0039] Synchronous deviation correction control of miter gate: When the gates on both sides are running at variable speed, synchronous deviation correction control is adopted; Correction control is performed in a way that the gate on one side tracks and synchronizes the gate on the other side, and the gates can switch between tracking objects; The gate synchronous deviation correction adopts PID adjustment, and the PID parameters can be set; When the stroke difference between the gates on both sides exceeds the set value for synchronous operation, the synchronous deviation correction and speed change control are stopped and the system switches to low-speed operation.

[0040] Embodiment 5, In the above control method, in order to prevent the gate from arching and deforming, and for overfilling, overdischarge and overload protection, it is also necessary to decompose it into water discharge gate opening protection and water filling gate closing protection, and adopt solenoid valve control, as follows: When the gate valve leaves the closed position and the gate is not in the open position or in the gate operation, the miter gate is allowed to move in the direction of opening, and the solenoid valve is energized; When the upper and lower gate valves leave the closed position and the miter gate of this gate is not closed, the miter gate is allowed to move in the closing direction and the solenoid valve is energized.

[0041] Unilateral water supply control: When inspecting a single-side valve, it is allowed to cut off the inspection valve and enter the single-side water supply operation mode. The cut-off valve does not participate in the system operation.

[0042] Before and after the valve is cut off, it must be ensured that the valve sends a signal in the final closed position.

[0043] During unilateral water delivery operation, the system automatically adjusts the intermittent valve opening and dynamic water valve closing parameters.

[0044] Faults associated with cut-off valves do not alarm.

[0045] Intermittent valve opening function: In order to improve the water delivery conditions of high-head ship locks, during the process of linked valve opening and water delivery, when the valve is opened to the set opening, it is necessary to pause for the set time and wait for the water delivery flow to stabilize before continuing to open the valve.

[0046] Automatic intermittent conditions for valve opening: in non-maintenance control mode, when the water level difference is greater than the set value, the valve opening operation is suspended when the valve is opened to the set opening, and the valve opening operation is resumed after the suspension time reaches the set time.

[0047] When the opening meter fails, the valve opening degree is replaced by the valve opening time.

[0048] When water is delivered on one side, the intermittent valve opening operating parameters are automatically adjusted.

[0049] Dynamic water shut-off valve control function: The dynamic water shut-off valve specifically refers to the dynamic water shut-off valve that prevents over-filling and over-leakage during water delivery.

[0050] When the water level difference reaches the set value when the valve is opened for water delivery on site or in centralized control, the water delivery valve is automatically closed to a small opening. In centralized control mode, the centralized control issues a water valve closing command.

[0051] The dynamic water valve closing parameters include the water level difference parameters during bilateral water supply and unilateral water supply, the valve small opening parameters, the water supply protection time parameters, and the valve closing time parameters when the opening meter fails.

[0052] When the opening meter fails, the valve closing opening is replaced by the valve closing time.

[0053] When the dynamic water shut-off valve conditions are met, if the dynamic water shut-off valve is not started within the water supply protection time or the valve is not closed to a small opening when horizontal, a warning or alarm will be issued if the dynamic water shut-off valve is not normally shut-off valve.

[0054] Program-controlled water replenishment function: After the ship lock is completed, the bottom sill of the first lock is raised to 139m, and the lowest navigable water level upstream is raised to 145m. When the upstream water level is 152.4m~165.75m and the fifth-level operation is adopted, the minimum navigable water depth of 5m will not be met, and the fifth-level water replenishment operation mode needs to be activated. According to the current minimum navigable water depth requirement of 5m, there is no fourth-level water replenishment operation condition, and the system retains the fourth-level water replenishment operation mode.

[0055] When the water replenishment operation mode needs to be enabled, the water replenishment control switch needs to be set to the water replenishment permission position at the local station on the side of the middle pier of the second gate. When the water replenishment operation needs to be enabled and the local station has not switched to the water replenishment permission position, the centralized control system should issue a warning that the local water replenishment permission is not set and restrict the corresponding water delivery control.

[0056] In the centralized control operation mode, the centralized control system sends water replenishment operation, water replenishment valve opening and valve closing instructions to the local area.

[0057] During the water replenishment process, the locking relationship between the water replenishment valve and the adjacent gate head is released when the water replenishment valve is opened and closed.

[0058] Program-controlled emergency valve closing: In the local or centralized control operation mode, if a Class C fault occurs and water is being delivered, the system will automatically shut down the valve in an emergency.

[0059] In the centralized control mode, the local station receives the program-controlled emergency valve closing signal issued by the centralized control station and starts the emergency valve closing control. In the non-centralized control mode, the local station receives the program-controlled emergency valve closing signal of the local station and starts the emergency valve closing control.

[0060] During emergency valve closing control, terminate other gate valve control instructions except valve closing, start the pump and directly load the valve closing control solenoid valve until the valve is closed.

[0061] There is a long corridor effect in the water transfer of the six gates, and the program-controlled emergency valve closing is prohibited when the water difference is greater than the set value.

[0062] Hardware emergency shutdown or emergency valve closing interrupts program-controlled emergency valve closing control.

[0063] Embodiment 6, Fault classification: refer to the original operation and maintenance habits to classify the faults: Type A failure: Class A faults are warning faults and will be given as Class A fault alarms. They will not affect system operation.

[0064] Class B1 fault: Class B1 faults are equipment component faults. According to the Class B1 fault alarm prompt, the operation of the equipment components associated with the fault will be stopped. When the gate or valve is in operation, if a Class B1 fault occurs in the corresponding or associated area, it will enter the protective operation state until the gate or valve is fully operational.

[0065] When a B1 fault occurs in the gate or valve area or associated area on one side in the maintenance mode, it is prohibited to start the gate or valve on both sides or the faulty side. When a B1 fault occurs in the gate or valve area on either side in the local mode, it is prohibited to start the local linkage operation. B1 fault does not affect the issuance and execution of centralized control instructions.

[0066] Class B2 fault: Class B2 faults are regional faults, and will be reported as Class B2 faults. When a Class B2 fault occurs in the gate area, the gate operation on the faulty side will be stopped; in the double-side operation mode, the gate operation on both sides will be stopped. When a Class B2 fault occurs in the valve area, the valve operation on the faulty side will be stopped; in the double-side mode and valve operation, the double-side valve operation will be stopped.

[0067] In the maintenance mode, gates or valves without B2 faults can still operate on one side. In the local mode, when a B2 fault occurs in the gate area on either side, it is prohibited to start the local linkage gate closing operation; when a B2 fault occurs in the gate or valve area on either side, it is prohibited to start the local linkage water delivery operation. In the centralized control mode, when a B2 fault occurs on either side, the local system does not respond to the centralized control gate and valve opening control instructions, and valves without B2 faults still respond and execute the centralized control valve closing instructions.

[0068] Class B3 fault: Class B3 faults are local substation faults, and the alarm prompts are based on Class B3 faults. When a Class B3 fault occurs in the local station, the gate and valve operation will be stopped. When both sides are in operation, in addition to closing the valve operation, the gate and valve operation on both sides will be stopped.

[0069] In the local mode, when a B3 fault occurs in the local station on either side, it is forbidden to start the local linkage operation. In the centralized control mode, when a B3 fault occurs in the local station on either side, the local system does not respond to the centralized control gate and valve opening control instructions, and the valve on the side without B3 fault still responds and executes the centralized control valve closing instructions.

[0070] Type C failure: Class C faults are process protection faults, and the alarm prompts are as follows. When a Class C fault occurs, stop the operation of other gates and valves except the valve closing operation.

[0071] In the maintenance mode, when a Class C fault occurs, the valve closing operation can still be started. In the local and centralized control modes, when a Class C fault occurs, the valve will automatically perform emergency closing if it is not completely closed.

[0072] Embodiment 7, The fault bytes are defined as Figure 7 shown.

[0073] Embodiment 8, Derivative fault handling: When fault A occurs, fault B will definitely occur, and fault B is a derivative fault of fault A. Fault A is the parent fault of fault B.

[0074] When programming, it is necessary to clarify the derivative relationship between various faults to reduce repeated alarms. When faults A and B exist at the same time, only fault A will be alarmed. If fault A disappears but fault B still exists, fault B will be alarmed.

[0075] Fault partition: Referring to the original operation and maintenance habits and combining the product features, the fault division is as follows: PLC diagnostic fault partitioning, The faults come from PLC diagnostic information, redundant modules and network diagnostic information. PLC diagnostic faults are not divided into partition piers and non-partition piers, and are all Class A faults.

[0076] Gate head fault partition, The gate faults are derived from independent sensor diagnostic information, emergency control and emergency control circuit diagnostic information, locking circuit and locking diagnostic information, and control process diagnostic information. They are mainly Class A or Class C faults.

[0077] Power supply fault partitioning, Power supply faults are derived from the diagnostic information of the local cabinet power and distribution system, which is divided into the partition pier side and the non-partition pier side. They belong to the common area of ​​​​gate valves and are mainly Class A, Class B1, and Class B3 faults.

[0078] Hydraulic fault partitioning, Hydraulic faults are derived from the diagnostic information of the hydraulic pump station system, which is divided into the partition pier side and the non-partition pier side. They belong to the common area of ​​​​gate valves and are mainly Class A, Class B1, and Class B3 faults.

[0079] Gate fault partitioning, Gate faults come from the gate area exclusive sensor diagnostic information, as well as other public system diagnostic information that only affects gate operation, including power and distribution system and hydraulic pump station system faults that affect gate operation. Gate faults are divided into the middle pier side and the non-middle pier side, mainly Class A, Class B1, and Class B2 faults.

[0080] Valve fault partitioning, Valve faults are derived from the diagnostic information of sensors exclusive to the valve area, as well as other public system diagnostic information that only affects valve operation, including power and distribution system and hydraulic pump station system faults that affect valve operation. Valve faults are divided into the pier side and the non-pier side, mainly Class A, Class B1, and Class B2 faults.

[0081] Auxiliary equipment fault partitioning, The diagnostic information of auxiliary equipment fault sources, such as signal lights, boundary screens, dry oil pumps, drainage systems, etc., is distinguished between the partition pier side and the non-partition pier side, mainly Class A and Class B1.

[0082] Embodiment 9, Fault masking: To facilitate troubleshooting or emergency handling, the fault signal can be shielded, and the shielded fault will no longer alarm; If there is a fault in the system that is shielded, the system will automatically generate a warning message of the fault being shielded (Class A fault).

[0083] Fault reset: To facilitate fault diagnosis and location, the fault state will not disappear automatically after the fault signal triggers the fault. The fault alarm mark can be reset by the fault reset button.

[0084] During the PLC startup process, the system automatically resets the detected faults.

[0085] The fault reset function is prohibited during the operation of the gate valve.

[0086] The fault reset button does not distinguish between centralized control and local control modes.

[0087] Fault confirmation: The fault confirmation signal is used to confirm the fault that has occurred. After the fault is confirmed, a fault confirmation mark is added to the fault attribute that has occurred. The confirmed fault will no longer sound a buzzer alarm.

[0088] The fault reset signal resets the fault confirmation flag in the fault attributes.

[0089] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A test processing method for a multi-stage ship lock on-site linkage control system, characterized in that: The steps include: S1, gate linkage, set up the gate linkage process in the local system to achieve automatic unlocking and closing of the gate; S2, water delivery linkage, set the local linkage command process, when the control conditions are met, prompt operation confirmation and start linkage control; S3, centralized control test, through communication with the centralized control system, realizes remote centralized monitoring and operation of local gate valves and anti-collision devices; including communication between centralized control PLC and local PLC, and communication between centralized control I / O server and local PLC; S4, lock detection, using hardware lock to ensure safe operation of the lock; S5, synchronous control, controls the gate waiting position, the miter gate speed change operation and the miter gate synchronous deviation correction respectively; S6, fault alarm, classifies and defines the fault; S7, fault handling, partitions, shields, resets and confirms faults.

2. The test processing method for the multi-stage ship lock on-site linkage control system according to claim 1 is characterized in that: In S1, in the gate closing linkage process, when a ship passes through the lock, a gate closing warning signal is sent, and at the same time the gate is unlocked. If the gate is unlocked, the gate is closed. When the gate is closed, a gate closing completion signal is sent.

3. The test processing method for the multi-stage ship lock on-site linkage control system according to claim 1 is characterized in that: In S2, the water transfer linkage instruction process includes: S2-1, when there is no fault in water delivery, open the valve to deliver water. If the water level is horizontal, the gate is opened and a gate opening signal is sent. When the gate is fully opened, the valve is closed and the linkage ends. S2-2, when the water delivery valve is opened, if an auxiliary valve opening water level signal or a level warning water level difference signal is received, the auxiliary valve is opened and the level warning is sent respectively; S2-3, when there is no fault in water delivery, open the valve to deliver water. If the water level is not in a horizontal state, send a water shut-off valve signal or open the water shut-off valve to the set opening to deliver water; S2-4, if there is any fault during the water delivery process, the valve will be closed urgently by program control to terminate the linkage.

4. The test processing method for the multi-stage ship lock on-site linkage control system according to claim 1 is characterized in that: In S3, the communication between the centralized control PLC and the local PLC includes: the local PLC sends the local control mode, gate valve operation information, hydraulic system operation information, anti-collision operation information and gate head water level information to the centralized control PLC, and the centralized control PLC sends control instruction information to the local PLC; the communication between the centralized control I / O server and the local PLC includes: the centralized control I / O server reads the local PLC I / O information, fault diagnosis information, complete gate head operation status information and operation parameter information from the local PLC, and the centralized control I / O server sends control instruction information and parameter setting information to the local PLC. The information sent by the centralized control system to the local site is short command information. After receiving the command, the local site determines the operating conditions and executes it automatically. The centralized control system sends the linkage water supply operation status and water replenishment operation status to the local site. If communication interruption or operation interruption occurs during the centralized control linkage water supply control and centralized control water replenishment control, the local site will automatically execute the programmed emergency valve closing protection. The purpose of verifying the interface between the local system and the centralized control is achieved through centralized control function testing.

5. The test processing method for the on-site linkage control system of a multi-stage ship lock according to claim 1 is characterized in that: In S4, the lockout detection includes the following steps: S4-1, the local PLC collects the signal status of each link of the locking signal transmission; S4-2: When water replenishment is required for the operation of the ship lock, if the local water replenishment permission switch is not set to water replenishment permission, a water replenishment warning is generated; S4-3, when the forced locking switch at the gate is not set to the forced locking permission, the local or centralized control software forced locking signal is automatically reset; S4-4, the local PLC generates a software locking signal based on the position information of the first gate valve of the upper and lower gates and the forced locking signal of the local or centralized control software. If it is inconsistent with the hardware locking signal, an alarm will be issued.

6. The test processing method for the on-site linkage control system of a multi-stage ship lock according to claim 1 is characterized by: In S5, the gate closing waiting position control includes the following steps: SA5-1, in order to prevent the card guide from being squeezed and collided when closing the gate, the card guide should be ensured to enter synchronously when closing the gate on both sides. When closing the gate on both sides, a synchronous waiting position is set. The synchronous waiting position is determined by the opening meter. The waiting position stroke is 7100mm. The waiting position is within the range of ±15mm of the waiting position stroke. SA5-2, when the synchronization difference between the gates on both sides exceeds the set range of ±25mm, both sides will wait for unloading at the synchronization waiting position and then close the gates synchronously; SA5-3, during the gate closing process, the synchronization difference between the gates on both sides does not exceed the set range, which does not affect the synchronous closing of the gates and does not require unloading and waiting; SA5-4, when the synchronization difference between the gates on both sides exceeds the set range, the gate stroke on one side is greater than the waiting position stroke, and the gate stroke on the other side is less than the waiting position stroke, the gate is prohibited from closing; SA5-5, when one side of the opening meter fails, the waiting position cannot be determined. It is prohibited to close the gates on both sides at the same time during non-maintenance operation. The gates can be closed at a low speed during maintenance operation.

7. The test processing method for the multi-stage ship lock on-site linkage control system according to claim 1 is characterized by: In S5, the speed change operation control of the miter gate includes the following steps: SB5-1, when the gate is opened and closed at a uniform speed, the load is saddle-shaped. When the acceleration, uniform speed and deceleration process of the gate opening and closing are controlled in the opposite direction of the saddle shape, the gate opening and closing process can achieve balanced load on the gate hoist; SB5-2, automatically calculates the acceleration and deceleration of the gate opening and closing variable speed operation according to the set uniform speed setting, acceleration and deceleration inflection point settings; SB5-3, gate speed change operation requires both gates on both sides to be opened and closed synchronously from the open end position or the closed end position; SB5-4, synchronous deviation correction control is performed during the gate speed change operation. When the stroke difference between the gates on both sides exceeds the synchronous setting value, the synchronous deviation correction and speed change control are stopped and the gate is switched to low speed operation; SB5-5, when one side of the gate is running, the gate opening meter on one side fails, the gate starts to open and close from the middle position, and the stroke difference between the gates on both sides exceeds the synchronous setting value, the gate opens and closes at a low speed; SB5-6, in the maintenance operation mode, when the gate opens and closes at a low speed, the gate opening and closing speed can be manually increased or decreased through the touch screen; SB5-7, in order to ensure the consistency of the limit switch signal when the gate stops, when the gate opening is close to the switch end position, it runs at the stopping speed.

8. The test processing method for the on-site linkage control system of a multi-stage ship lock according to claim 1 is characterized by: In S5, the synchronous deviation correction control of the miter gate includes the following steps: SC5-1, when the gates on both sides are running at variable speed, synchronous deviation correction control is adopted; SC5-2, the gate on one side tracks and synchronizes with the gate on the other side to perform deviation correction control, and the gates can switch between tracking objects; SC5-3, gate synchronous deviation correction adopts PID adjustment, and PID parameters can be set; SC5-4: When the stroke difference between the gates on both sides exceeds the synchronous operation setting value, the synchronous deviation correction and speed control are stopped and the system switches to low-speed operation.

9. The test processing method for the on-site linkage control system of a multi-stage ship lock according to claim 1 is characterized in that: In S6, referring to the operation and maintenance habits, faults are divided into Class A faults, Class B1 faults, Class B2 faults, Class B3 faults and Class C faults; Class A faults are prompt faults and are prompted by Class A fault alarms; Class B1 faults are equipment component faults. Class B1 fault alarm prompts are issued and the operation of the equipment components associated with the fault is stopped. Class B2 faults are regional faults. Class B2 fault alarm prompts are issued. B3 faults are local substation faults and will be reported as B3 faults. Class C faults are process protection faults and will be reported as Class C faults.

10. The test processing method for the on-site linkage control system of a multi-stage ship lock according to claim 1 is characterized in that: In S7, faults are partitioned into PLC diagnosis fault partitions, gate fault partitions, power supply fault partitions, hydraulic fault partitions, gate fault partitions, valve fault partitions and auxiliary equipment fault partitions; for the partitioned faults, fault shielding, fault reset or fault confirmation are selectively performed.

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