SCADA system based on oil wharf

Abstract

The invention provides an SCADA (Supervisory Control and Data Acquisition) system based on an oil wharf, which relates to the technical field of SCADA, and comprises an offshore SCADA server, a shore SCADA server, an oil wharf controller cabinet and an oil wharf subsystem set, the offshore SCADA server, the shore SCADA server, the oil wharf controller cabinet and the oil wharf subsystem set are mutually connected, and the offshore SCADA server and the shore SCADA server are used for performing integrated processing on acquired system data to obtain a data processing result; the oil wharf subsystem set comprises an on-island berth system, an on-island platform system, an on-shore valve station system and an on-shore tank field system. According to the invention, the system data of the oil wharf is integrated.

Description

Technical Field

[0001] The present invention relates to the field of SCADA technology, and in particular to a SCADA system based on an oil terminal. Background Art

[0002] Oil terminals, also known as petroleum terminals, are mainly used for the transshipment and transportation of petroleum products, and the products transported are usually crude oil, heavy fuel oil, aviation fuel, diesel, gasoline, liquefied petroleum gas, etc. Due to the particularity of the location of the oil terminal and the dangerousness of the oil products, multiple subsystems are required to monitor the transportation process or perform auxiliary operations. The SCADA system is a computer system used to monitor and control industrial processes. It can perform real-time monitoring, data collection and remote control of subsystems. However, the existing subsystem models and manufacturers are different, and the existing SCADA system cannot integrate the oil terminal system data of multiple subsystems. Summary of the invention

[0003] The problem solved by the present invention is how to integrate and process the system data of the oil terminal.

[0004] In order to solve the above problems, the present invention provides a SCADA system based on an oil terminal.

[0005] The present invention provides a SCADA system based on an oil terminal, the SCADA system comprising an offshore SCADA server, an onshore SCADA server, an oil terminal controller cabinet and an oil terminal subsystem set;

[0006] The offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set are connected to each other, and the offshore SCADA server and the onshore SCADA server are used to integrate and process the acquired system data to obtain data processing results;

[0007] The oil terminal subsystem set includes an island berth system, an island platform system, an onshore valve station system and an onshore tank area system. The island berth system is used to represent a system whose geographical location is in the island berth area, the island platform system is used to represent a system whose geographical location is in the island platform area, the onshore valve station system is used to represent a system whose geographical location is in the onshore valve station area, and the onshore tank area system is used to represent a system whose geographical location is in the onshore tank area.

[0008] Optionally, the island berth system includes an oil transfer arm system, which is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the oil transfer arm system is used to control the connection or disconnection of the berth pipeline and the oil tanker.

[0009] Optionally, the island platform system includes a safety instrument system, a fire protection system, an auxiliary berthing system and an island leakage detection monitoring system;

[0010] The safety instrument system is connected to the offshore SCADA server based on the TCS900 SIS Patch communication protocol, and the safety instrument system is used to monitor the safety status of the environment and personnel;

[0011] The fire protection system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the fire protection system is used to control the switch of the fire protection valve and the start and stop of the fire protection pump;

[0012] The auxiliary berthing system is connected to the offshore SCADA server based on the Modbus TCP communication protocol to monitor the berthing status of the ship;

[0013] The island leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the island leakage detection monitoring system is used to be set in the platform area on the island to monitor pipeline leakage.

[0014] Optionally, the island platform system also includes a sampling system, an electric heating system, an island electrical monitoring system, a flow computer system, and a nitrogen system;

[0015] The sampling system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the sampling system is used for sampling and testing of products;

[0016] The electric heating system is connected to the oil terminal controller cabinet based on the Modbus RTU communication protocol, and the electric heating system is used to control the heating of part of the petroleum products;

[0017] The island electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the island electrical monitoring system is used to monitor the electrical load and electrical switches in the platform area on the island;

[0018] The flow computer system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the flow computer system is used to calculate the pipeline flow;

[0019] The nitrogen system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the nitrogen system is used to monitor the nitrogen pressure and the nitrogen valve switch.

[0020] Optionally, the safety instrument system includes an emergency stop system and a fire and gas alarm system, wherein the emergency stop system is used to control the emergency stop of the system, and the fire and gas alarm system is used to detect fire and gas leakage.

[0021] Optionally, the onshore valve station system includes an onshore leakage detection monitoring system and an onshore electrical monitoring system;

[0022] The onshore leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the onshore leakage detection monitoring system is used to be set in the onshore valve station area to monitor pipeline leakage;

[0023] The onshore electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the onshore electrical monitoring system is used to monitor the electrical loads and electrical switches on shore.

[0024] Optionally, the onshore tank farm system includes a tank farm radar level monitoring system;

[0025] The tank area radar liquid level monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the tank area radar liquid level monitoring system is used to collect the tank area liquid level.

[0026] Optionally, the SCADA system further comprises a SCADA network, wherein the SCADA network is used to connect the offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set;

[0027] The SCADA network includes a main network and a backup network, and the main network and the backup network are independent of each other.

[0028] Optionally, the system data includes system diagnostic data, equipment status, operation data, production data and alarm data, and the integrated processing of the acquired system data to obtain the data processing result includes:

[0029] The system diagnostic data, the equipment status, the operation data, the production data and the alarm data acquired in real time are integrated and processed to obtain a data processing result.

[0030] Optionally, the oil terminal controller cabinet and the oil terminal subsystem assembly are connected via a network twisted pair cable.

[0031] The beneficial effect of a SCADA system based on an oil terminal of the present invention is that the SCADA system includes an offshore SCADA server, an onshore SCADA server, an oil terminal controller cabinet and an oil terminal subsystem set, and two SCADA servers are respectively set at sea and on shore, and the data of each subsystem is integrated through the SCADA server. The offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set are interconnected, and the two SCADA servers are redundant with each other. If one of the servers stops working, it will not affect the normal operation of the entire SCADA system. The offshore SCADA server and the onshore SCADA server are used to integrate and process the acquired system data to obtain data processing results. The oil terminal subsystem set includes an island berth system, an island platform system, an onshore valve station system and an onshore tank area system. According to the characteristics of the oil terminal, different geographical areas are divided, and subsystems set in each area are selected, so that the system data of the oil terminal can be better integrated and processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a SCADA system based on an oil terminal according to an embodiment of the present invention;

[0033] Figure 2 FIG. 4 is a schematic diagram of another SCADA system based on an oil terminal according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0035] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0036] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0038] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0039] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a SCADA system based on an oil terminal.

[0040] like Figure 1 As shown, an embodiment of the present invention provides a SCADA system based on an oil terminal, including:

[0041] The SCADA system includes an offshore SCADA server, an onshore SCADA server, an oil terminal controller cabinet and an oil terminal subsystem set;

[0042] The offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set are connected to each other, and the offshore SCADA server and the onshore SCADA server are used to integrate and process the acquired system data to obtain data processing results;

[0043] The oil terminal subsystem set includes an island berth system, an island platform system, an onshore valve station system and an onshore tank area system. The island berth system is used to represent a system whose geographical location is in the island berth area, the island platform system is used to represent a system whose geographical location is in the island platform area, the onshore valve station system is used to represent a system whose geographical location is in the onshore valve station area, and the onshore tank area system is used to represent a system whose geographical location is in the onshore tank area.

[0044] Specifically, SCADA (Supervisory Control and Data Acquisition) is a computer system used to monitor and control industrial processes. It is mainly used for real-time monitoring, data acquisition and remote control, and is a core component in many industrial automation and control systems. The SCADA server can monitor various parameters in the industrial process in real time, such as temperature, pressure, flow, etc., and display these data in a graphical way on the monitoring screen to help operators make decisions. The SCADA server collects data from various sensors and devices on site. This data includes equipment status, operating parameters, and historical records. Through the SCADA server, operators can remotely control equipment and processes. This includes operations such as starting and stopping equipment and adjusting parameters, usually through the operation interface. The SCADA server can configure alarm thresholds, and when the monitored data exceeds the preset range, an alarm will be issued to remind the operator to take action. The SCADA server can record historical data, generate trend charts and reports, and help analyze past operations and optimize future operations. The oil terminal controller cabinet is a PLC cabinet. PLC cabinet refers to a programmable control cabinet. The control cabinet refers to a complete set of control cabinets, which is an electrical cabinet that can realize the control of motors and switches. It is mainly used for pipeline valve switch control and temperature and pressure collection.

[0045] In some more specific embodiments, due to the characteristics of the oil terminal, it can be divided into island berths, island platforms, submarine pipelines, onshore valve stations, and onshore tank farms according to geographical location. PLC cabinets and third-party system equipment are distributed in areas other than submarine pipelines.

[0046] In some more specific embodiments, the SCADA server includes an operator station and an engineer station, the engineer station is used for SCADA software configuration, and the operator station is used for monitoring operations.

[0047] In this embodiment, the SCADA system includes an offshore SCADA server, an onshore SCADA server, an oil terminal controller cabinet and an oil terminal subsystem set. By setting two SCADA servers at sea and onshore respectively, the data of each subsystem is integrated through the SCADA server. The offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set are interconnected. The two SCADA servers are redundant with each other. If one of the servers stops working, it will not affect the normal operation of the entire SCADA system. The offshore SCADA server and the onshore SCADA server are used to integrate and process the acquired system data to obtain data processing results. The oil terminal subsystem set includes an island berth system, an island platform system, an onshore valve station system and an onshore tank area system. According to the characteristics of the oil terminal, different geographical areas are divided, and subsystems set in each area are selected to better integrate and process the system data of the oil terminal.

[0048] Optionally, the island berth system includes an oil transfer arm system, which is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the oil transfer arm system is used to control the connection or disconnection of the berth pipeline and the oil tanker.

[0049] Specifically, the oil loading arm system is able to control the system drone interface.

[0050] Optionally, the island platform system includes a safety instrument system, a fire protection system, an auxiliary berthing system and an island leakage detection monitoring system;

[0051] The safety instrument system is connected to the offshore SCADA server based on the TCS900 SIS Patch communication protocol, and the safety instrument system is used to monitor the safety status of the environment and personnel;

[0052] The fire protection system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the fire protection system is used to control the switch of the fire protection valve and the start and stop of the fire protection pump;

[0053] The auxiliary berthing system is connected to the offshore SCADA server based on the Modbus TCP communication protocol to monitor the berthing status of the ship;

[0054] The island leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the island leakage detection monitoring system is used to be set in the platform area on the island to monitor pipeline leakage.

[0055] Specifically, the Safety Instrumented System (SIS), referred to as the SIS system, is also called a safety instrument control system or a safety system. It is an automated system specifically used to protect the safety of industrial processes and facilities. The main function of the SIS system is to detect potentially dangerous process states and take measures to keep them within a safe operating range when necessary, or shut down dangerous processes or equipment in an emergency to ensure the safety of personnel, assets and the environment. The fire protection system is a fire pump and fire foam control system. It is used for fire valve switch control and fire pump start and stop control. The system has only a touch screen for simple operation and no workstation. The auxiliary berthing system is used to monitor the berthing status of the ship. The system is equipped with an independent human-machine interface and a workstation. The island leak detection monitoring system is used to monitor pipeline leaks on the island. The system is equipped with an independent human-machine interface and a workstation. Considering the convenience of implementation, the system is first connected to the PLC cabinet, and the PLC controller in the PLC cabinet sends data to the SCADA server. For each subsystem, different communication methods are selected according to its communication interface type, communication protocol, and convenience of implementation.

[0056] The TCS900 system is a high-availability large-scale fully instrumented system (SIS) independently designed and developed for the entire field of industrial automation. The system consists of specially designed safety modules that comply with the IEC61508 standard. The TCS900 system can be used in critical process safety control situations with safety level requirements, including emergency shutdown systems (ESD), fire and gas detection systems (FGS), fuel management systems (BMS), large turbine compressor control (CCS), etc. The Modbus TCP protocol is a communication protocol based on the TCP / IP network, which is used to realize data exchange between different devices in industrial automation systems. This protocol aims to standardize the data format, communication method, and error handling of the Modbus TCP communication protocol to ensure the stability and reliability of communication. Modbus RTU is a common serial communication protocol used for industrial automation and communication between devices. It is based on the specification of serial communication and usually uses RS-232, RS-422 or RS-485 interfaces.

[0057] Modbus TCP is based on Ethernet and supports higher transmission rates (usually 10 / 100 / 1000Mbps), which is suitable for applications that require high-speed data transmission. Although Ethernet performs well in terms of electromagnetic interference, it may still be affected by interference in extreme environments, and Modbus TCP networks usually require more complex network configuration and management. Modbus RTU usually uses the RS-485 interface, which has good anti-interference ability and a longer communication distance (usually within 1200 meters), and is suitable for simple scenarios that require high anti-interference ability and a longer communication distance.

[0058] In this optional embodiment, considering the characteristics of the system and the convenience of implementation, the safety instrument system uses its system-specific communication protocol to communicate, that is, communicates in the TCS900 SIS Patch communication protocol.

[0059] Optionally, the island platform system also includes a sampling system, an electric heating system, an island electrical monitoring system, a flow computer system, and a nitrogen system;

[0060] The sampling system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the sampling system is used for sampling and testing of products;

[0061] The electric heating system is connected to the oil terminal controller cabinet based on the Modbus RTU communication protocol, and the electric heating system is used to control the heating of part of the petroleum products;

[0062] The island electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the island electrical monitoring system is used to monitor the electrical load and electrical switches in the platform area on the island;

[0063] The flow computer system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the flow computer system is used to calculate the pipeline flow;

[0064] The nitrogen system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the nitrogen system is used to monitor the nitrogen pressure and the nitrogen valve switch.

[0065] Specifically, the sampling system is used for sampling and testing of products. The system only has a touch screen for simple operation and no workstation. The electric heating system is used for heating some petroleum products. The system only has a touch screen for simple operation and no workstation. The island electrical monitoring system is used to monitor the electrical load and electrical switch control on the island. The system is equipped with an independent human-machine interface and workstation. The flow computer system is used to calculate pipeline flow. The system itself has a touch screen for simple operation and no workstation. The nitrogen system is used to monitor nitrogen pressure and nitrogen valve switch control.

[0066] Optionally, the safety instrument system includes an emergency stop system and a fire and gas alarm system, wherein the emergency stop system is used to control the emergency stop of the system, and the fire and gas alarm system is used to detect fire and gas leakage.

[0067] Specifically, the emergency shutdown system and the fire and gas alarm system do not have independent human-machine interfaces. The emergency shutdown system, also known as ESD, Emergency Shutdown System, directly sends a protection interlock signal when an emergency occurs in the production device to protect the on-site equipment and avoid huge losses caused by the expansion of danger.

[0068] Optionally, the onshore valve station system includes an onshore leakage detection monitoring system and an onshore electrical monitoring system;

[0069] The onshore leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the onshore leakage detection monitoring system is used to be set in the onshore valve station area to monitor pipeline leakage;

[0070] The onshore electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the onshore electrical monitoring system is used to monitor the electrical loads and electrical switches on shore.

[0071] Optionally, the onshore tank farm system includes a tank farm radar level monitoring system;

[0072] The tank area radar liquid level monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the tank area radar liquid level monitoring system is used to collect the tank area liquid level.

[0073] Specifically, the tank area radar liquid level monitoring system is used to collect the tank area liquid level. The system is equipped with an independent human-machine interface and workstation. Considering the convenience of implementation, the system is first connected to the PLC cabinet, and the PLC controller in the PLC cabinet sends the data to the SCADA server.

[0074] Optionally, the SCADA system further comprises a SCADA network, wherein the SCADA network is used to connect the offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set;

[0075] The SCADA network includes a main network and a backup network, and the main network and the backup network are independent of each other.

[0076] Specifically, the subsystem data is connected to the PLC cabinet nearby using a preset communication protocol, and the controller of the PLC cabinet then sends the data to the SCADA server through the SCADA network.

[0077] Optionally, the system data includes system diagnostic data, equipment status, operation data, production data and alarm data, and the integrated processing of the acquired system data to obtain the data processing result includes:

[0078] The system diagnostic data, the equipment status, the operation data, the production data and the alarm data acquired in real time are integrated and processed to obtain a data processing result.

[0079] Optionally, the oil terminal controller cabinet and the oil terminal subsystem assembly are connected via a network twisted pair cable.

[0080] In some more specific embodiments, in combination Figure 2 As shown in the figure, network A and network B are mutually redundant SCADA networks, which can increase the stability and availability of the system. Network A and B switches are designed in each area, and the network A switches in each area are connected together through optical fiber connection, and the same is true for network B. Network A and B switches are placed in the PLC cabinet. The oil terminal is to unload the oil products on the ship to the onshore tank area (called unloading), or to load the oil products onto the ship (called loading). By controlling the valves and pumps of the oil pipeline, the loading and unloading of oil products are realized. According to the characteristics of the oil terminal, the subsystems of the oil terminal are divided into the island berth system, the island platform system, the onshore valve station system and the onshore tank area system according to the geographical location, and no system is set at the submarine pipeline location. Multiple PLC cabinets are set in each area for connecting subsystems. The island berth system includes an oil transfer arm system. The island platform system includes a safety instrument system, a fire protection system, an auxiliary berthing system, an island leak detection monitoring system, a sampling system, an electric heating system, an island electrical monitoring system, a flow computer system and a nitrogen system. The onshore valve station system includes an onshore leak detection monitoring system and an onshore electrical monitoring system. The onshore tank farm system includes a tank farm radar level monitoring system. Two SCADA servers are set up, placed on the island and on the shore, namely, an offshore SCADA server and an onshore SCADA server. The two servers are redundant to each other, that is, if one of the servers stops working, it will not affect the normal operation of the entire SCADA system.

[0081] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A SCADA system based on an oil terminal, characterized in that: The SCADA system includes an offshore SCADA server, an onshore SCADA server, an oil terminal controller cabinet and an oil terminal subsystem set; The offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set are connected to each other, and the offshore SCADA server and the onshore SCADA server are used to integrate and process the acquired system data to obtain data processing results; The oil terminal subsystem set includes an island berth system, an island platform system, an onshore valve station system and an onshore tank area system. The island berth system is used to represent a system whose geographical location is in the island berth area, the island platform system is used to represent a system whose geographical location is in the island platform area, the onshore valve station system is used to represent a system whose geographical location is in the onshore valve station area, and the onshore tank area system is used to represent a system whose geographical location is in the onshore tank area.

2. The SCADA system based on the oil terminal according to claim 1, characterized in that: The island berth system includes an oil transfer arm system, which is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol. The oil transfer arm system is used to control the connection or disconnection of the berth pipeline and the oil tanker.

3. The SCADA system based on the oil terminal according to claim 1, characterized in that: The island platform system includes a safety instrument system, a fire protection system, an auxiliary berthing system and an island leakage monitoring system; The safety instrument system is connected to the offshore SCADA server based on the TCS900 SIS Patch communication protocol, and the safety instrument system is used to monitor the safety status of the environment and personnel; The fire protection system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the fire protection system is used to control the switch of the fire protection valve and the start and stop of the fire protection pump; The auxiliary berthing system is connected to the offshore SCADA server based on the Modbus TCP communication protocol to monitor the berthing status of the ship; The island leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the island leakage detection monitoring system is used to be set in the platform area on the island to monitor pipeline leakage.

4. The SCADA system based on the oil terminal according to claim 3, characterized in that: The island platform system also includes a sampling system, an electric heating system, an island electrical monitoring system, a flow computer system, and a nitrogen system; The sampling system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the sampling system is used for sampling and testing of products; The electric heating system is connected to the oil terminal controller cabinet based on the Modbus RTU communication protocol, and the electric heating system is used to heat part of the petroleum products; The island electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the island electrical monitoring system is used to monitor the electrical load and electrical switches in the platform area on the island; The flow computer system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the flow computer system is used to calculate the pipeline flow; The nitrogen system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the nitrogen system is used to monitor the nitrogen pressure and the nitrogen valve switch.

5. The SCADA system based on the oil terminal according to claim 4, characterized in that: The safety instrument system includes an emergency stop system and a fire and gas alarm system. The emergency stop system is used to control the emergency stop of the system, and the fire and gas alarm system is used to detect fire and gas leakage.

6. The SCADA system based on the oil terminal according to claim 1, characterized in that: The onshore valve station system includes an onshore leakage detection monitoring system and an onshore electrical monitoring system; The onshore leakage detection monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the onshore leakage detection monitoring system is used to be set in the onshore valve station area to monitor pipeline leakage; The onshore electrical monitoring system is connected to the offshore SCADA server based on the Modbus TCP communication protocol, and the onshore electrical monitoring system is used to monitor the electrical loads and electrical switches on shore.

7. The SCADA system based on the oil terminal according to claim 1, characterized in that: The onshore tank farm system includes a tank farm radar level monitoring system; The tank area radar liquid level monitoring system is connected to the oil terminal controller cabinet based on the Modbus TCP communication protocol, and the tank area radar liquid level monitoring system is used to collect the tank area liquid level.

8. The SCADA system based on the oil terminal according to claim 1, characterized in that: The SCADA system further comprises a SCADA network, wherein the SCADA network is used to connect the offshore SCADA server, the onshore SCADA server, the oil terminal controller cabinet and the oil terminal subsystem set; The SCADA network includes a main network and a backup network, and the main network and the backup network are independent of each other.

9. The SCADA system based on the oil terminal according to claim 1, characterized in that: The system data includes system diagnostic data, equipment status, operation data, production data and alarm data. The integrated processing of the acquired system data to obtain data processing results includes: The system diagnostic data, the equipment status, the operation data, the production data and the alarm data acquired in real time are integrated and processed to obtain a data processing result.

10. The SCADA system based on the oil terminal according to any one of claims 1 to 9, characterized in that: The oil terminal controller cabinet and the oil terminal subsystem assembly are connected via a network twisted pair cable.

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