A tunnel local electromechanical autonomous control method for real-time detection of communication state

Abstract

The application discloses a tunnel local electromechanical autonomous control method for real-time communication state detection, and specifically comprises the following steps: S1, setting a local electromechanical control device in a field, and completing signal communication between the local electromechanical control device and a regional control master station; S2, setting a timer in the local electromechanical control device in S1, and setting a cycle period M; S3, selecting a time point of a fixed time N within the cycle period M set in S2, and sending a connection confirmation message to the regional control master station by the local electromechanical control device; and S4, confirming whether the connection confirmation message sent in S3 is received by the regional control master station. The application has the beneficial effect that a cycle connection confirmation message sending unit is set, the connection confirmation message can be periodically sent to the regional control master station, and the regional control master station sends an ACK message to the local electromechanical control device to realize completed connection verification communication after receiving the message.

Description

Technical Field

[0001] This invention relates to the field of tunnel electromechanical control technology, specifically a tunnel local electromechanical autonomous control method for real-time communication status detection. Background Technology

[0002] The tunnel area control method is a segmented intelligent management and control technology for highway and railway tunnels. Its core is to divide the tunnel into several independent control areas and combine monitoring equipment and execution systems to achieve refined management of traffic, environment and safety within the tunnel.

[0003] This traditional method has a simple system design and architecture, and is convenient for data acquisition and control. However, because it is a centralized control system, if the master PLC and slave PLC lose connection, the slave PLC's data acquisition and control will be completely unsupervised, which may lead to tunnel accidents or worsen the current accident. Summary of the Invention

[0004] The purpose of this invention is to provide a tunnel local electromechanical autonomous control method for real-time detection of communication status, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tunnel local electromechanical autonomous control method for real-time communication status detection, specifically including the following steps; S1. Set up local electromechanical control equipment in the field and complete the signal connection between the local electromechanical control equipment and the regional control master station; S2. Set a timer for the local electromechanical control device in S1 and set a cycle period M; S3. Within the cycle period M set in S2, select a fixed time point N, and have the local electromechanical control equipment send a connection confirmation message to the regional control master station. S4. The regional control master station confirms whether it has received the connection confirmation message sent by S3.

[0006] As a preferred embodiment of the present invention: after receiving the connection confirmation message in S4, the area control master station sends an ACK message to the local electromechanical control equipment to confirm receipt.

[0007] As a preferred embodiment of the present invention: after receiving the ACK message, the local electromechanical control device controls the timer to clear and indicates that it is currently in a valid communication connection state.

[0008] As a preferred embodiment of the present invention: in S4, when the area control master station does not receive a connection confirmation message, it controls the local electromechanical control equipment to refuse to send an ACK message confirming receipt.

[0009] As a preferred embodiment of the present invention: if the field local electromechanical control device does not receive an ACK message within M*N time, the timer expires, and at this time the field local electromechanical control device sets its own status to disconnected state.

[0010] As a preferred embodiment of the present invention: when the local electromechanical control device detects that it is in a state of being disconnected from the regional control host, it enters the local electromechanical control mode.

[0011] As a preferred embodiment of the present invention, the local electromechanical control mode is used to collect data from various local sensors and requires a pre-set strategy.

[0012] As a preferred embodiment of the present invention: after entering the local electromechanical control mode and completing the collection of local sensor data, the local electromechanical control device performs calculations according to a preset strategy to determine the execution steps and the electromechanical control method to be executed.

[0013] As a preferred embodiment of the present invention: the local electromechanical control device performs electromechanical control according to the calculated execution steps and the executed electromechanical control method, and adjusts in real time according to the data collected by local sensors throughout the process.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by cooperating with the local electromechanical control device and the timer, a cyclic connection confirmation message sending unit can be set in the local electromechanical control device, which can periodically send connection confirmation messages to the regional control master station. At the same time, after receiving the message, the regional control master station sends an ACK message to the local electromechanical control device to realize the completed connection verification and connection.

[0015] When a connection verification anomaly occurs, the local electromechanical control device sets itself to a disconnected state and enters local electromechanical control mode. In this mode, the local electromechanical control device collects data from various local sensors according to a preset strategy, then performs strategy calculations to determine the execution steps and electromechanical control methods. It then performs electromechanical control according to the steps determined by the strategy. Furthermore, it adjusts in real time based on the data collected by local sensors, enabling the field local electromechanical control device to have edge computing capabilities, allowing for local strategy calculation and control. Attached Figure Description

[0016] Figure 1 This is a signal connection diagram for the present invention; Figure 2 This is a local electromechanical control diagram for the completion of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 The present invention provides a technical solution: a tunnel local electromechanical autonomous control method for real-time detection of communication status, characterized in that it specifically includes the following steps; S1. Set up local electromechanical control equipment in the field and complete the signal connection between the local electromechanical control equipment and the regional control master station; S2. Set a timer for the local electromechanical control device in S1 and set a cycle period M; S3. Within the cycle period M set in S2, select a fixed time point N, and have the local electromechanical control equipment send a connection confirmation message to the regional control master station. S4. The regional control master station confirms whether it has received the connection confirmation message sent by S3.

[0019] Specifically, in S4, after receiving a connection confirmation message, the area control master station sends an ACK message to the local electromechanical control device. Upon receiving the ACK message, the local electromechanical control device clears its timer and indicates that it is currently in a valid communication connection state. If the area control master station does not receive a connection confirmation message, it controls the local electromechanical control device to refuse to send an ACK message. If the field local electromechanical control device does not receive an ACK message within M*N time, the timer expires. At this time, the field local electromechanical control device sets its own status to disconnected. When the local electromechanical control device detects that it is disconnected from the area control master station, it enters the local electromechanical control mode. The local electromechanical control mode is used to collect data from various local sensors and requires a pre-set strategy. After entering the local electromechanical control mode and completing the collection of local sensor data, the local electromechanical control device calculates according to the pre-set strategy to determine the execution steps and electromechanical control methods. The local electromechanical control device performs electromechanical control according to the calculated execution steps and electromechanical control methods, and adjusts in real time according to the data collected by the local sensors throughout the process.

[0020] To ensure that local field equipment can maintain correct operation of basic data acquisition and basic electromechanical control even when it loses connection with the regional control master station, the following two issues need to be addressed: 1. Real-time detection of the effectiveness of communication connections between local field electromechanical equipment and the regional control master station; 2. Sensor data collected by local electromechanical equipment in the field can be used to calculate local strategies and then control the local electromechanical equipment.

[0021] Specifically, when using it: 1. Real-time detection of communication connection validity At a fixed time N, the local electromechanical control equipment in the field sends a connection confirmation message to the area control master station. Upon receiving the connection confirmation message, the area control master station replies with an ACK message confirming receipt.

[0022] The field local electromechanical control equipment sets a timer M*N. When it receives an ACK message from the regional control master station, it clears the timer to indicate that the current communication connection is valid.

[0023] If the local electromechanical control equipment in the field does not receive an ACK message within M*N time, the timer will time out. At this time, the local electromechanical control equipment in the field will set its status to disconnected.

[0024] 2. Local electromechanical control When the local electromechanical control equipment detects that it is disconnected from the regional control host, it enters the local electromechanical control mode.

[0025] The local electromechanical control equipment collects data from various local sensors according to a preset strategy, then performs strategy calculations to determine the execution steps and electromechanical control methods. It then performs electromechanical control according to the steps determined by the strategy, and adjusts in real time based on the data collected from the local sensors.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel local electromechanical autonomous control method for real-time communication status detection, characterized in that, Specifically, it includes the following steps; S1. Set up local electromechanical control equipment in the field and complete the signal connection between the local electromechanical control equipment and the regional control master station; S2. Set a timer for the local electromechanical control device in S1 and set a cycle period M; S3. Within the cycle period M set in S2, select a fixed time point N, and have the local electromechanical control equipment send a connection confirmation message to the regional control master station. S4. The regional control master station confirms whether it has received the connection confirmation message sent by S3.

2. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 1, characterized in that: In S4, after receiving the connection confirmation message, the area control master station sends an ACK message to the local electromechanical control equipment to confirm receipt.

3. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 2, characterized in that: Upon receiving the ACK message, the local electromechanical control device clears the control timer and indicates that the current communication connection is valid.

4. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 1, characterized in that: In S4, if the area control master station does not receive a connection confirmation message, it controls the local electromechanical control equipment to refuse to send an ACK message confirming receipt.

5. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 4, characterized in that: If the local electromechanical control equipment in the field does not receive an ACK message within M*N time, the timer will time out, and the local electromechanical control equipment in the field will set its status to disconnected.

6. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 5, characterized in that: When the local electromechanical control device detects that it is disconnected from the regional control host, it enters the local electromechanical control mode.

7. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 6, characterized in that: The local electromechanical control mode is used to collect data from various local sensors and requires pre-setting strategies.

8. The tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 7, characterized in that: After entering the local electromechanical control mode and completing the collection of local sensor data, the local electromechanical control device performs calculations according to a preset strategy to determine the execution steps and the electromechanical control method to be executed.

9. A tunnel local electromechanical autonomous control method for real-time communication status detection according to claim 8, characterized in that: The local electromechanical control equipment performs electromechanical control according to the calculated execution steps and the executed electromechanical control method, and adjusts in real time based on the data collected by local sensors throughout the process.

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