A new energy station acquisition monitoring system and a ring network source MAC generation method thereof

Abstract

The application belongs to the technical field of network communication, and particularly relates to a new energy station acquisition monitoring system and a ring network source MAC generation method thereof. The specific steps comprise: a monitoring device sends an initial inspection message, an acquisition device adds its own number to the initial inspection message, the monitoring device detects number conflicts after recovering the initial inspection message, and then sends a conflict inspection message, and all acquisition devices clear their own numbers, the monitoring device repeats the above steps after recovering the conflict inspection message, until no number conflict is detected in the initial inspection message, the monitoring device sends a normal inspection message, a numberless acquisition device selects an unused number, the acquisition device generates its own source MAC address according to its own number, and enters a normal working mode, so that the data collected by the acquisition device is uploaded to the monitoring device, and the control command issued by the monitoring device is responded, production efficiency is improved, and the possibility of errors is reduced.

Description

Technical Field

[0001] This invention belongs to the field of network communication technology, specifically relating to a new energy power station data acquisition and monitoring system and its ring network source MAC generation method. Background Technology

[0002] Terminal data acquisition devices are widely used in scenarios such as wind turbine status monitoring at renewable energy power plants and air composition detection in coal mine tunnels. The large number and wide distribution of these devices necessitate a ring network communication structure between the data acquisition and monitoring devices. A schematic network topology diagram of a renewable energy power plant is shown below. Figure 1 As shown, the data acquisition devices 1, 2, and 3 collect the wind turbine status data and send it to the monitoring device for processing via the ring network switch.

[0003] In a ring network, the source MAC address of each device must be unique, and the user must configure the source MAC address of each device before commissioning. Currently, the source MAC address of each device is configured manually. This manual method inevitably leads to duplicate configurations, and problems discovered after commissioning require individual troubleshooting. For large ring networks (more than 100 devices, with a distance of more than 2 kilometers between devices), the troubleshooting efficiency is extremely low. Summary of the Invention

[0004] The purpose of this invention is to provide a new energy power station data acquisition and monitoring system and its ring network source MAC generation method, so as to solve the problem that manual adjustment and troubleshooting of the source MAC addresses of each device in the ring network is prone to errors and has low efficiency.

[0005] To address the aforementioned technical problems, this invention provides a method for automatically generating source MAC addresses in a ring network, comprising the following steps:

[0006] 1) The monitoring device sends an initial inspection message to the ring network. The acquisition devices in the ring network receive and transmit the initial inspection message in sequence. The acquisition devices that have been assigned numbers add their own numbers to the initial inspection message and send it to the monitoring device. The monitoring device determines whether there is a conflict between the numbers of each acquisition device based on the received initial inspection message. If there is a conflict, proceed to step 2); if there is no conflict, proceed to step 3).

[0007] 2) The monitoring device sends a conflict inspection message to the ring network. The acquisition device receives and transmits the conflict inspection message in sequence. After receiving the conflict inspection message, each acquisition device clears its own number. After the monitoring device retrieves the conflict inspection message, it executes step 1).

[0008] 3) The monitoring device sends normal inspection messages to the ring network. The acquisition devices receive and transmit normal inspection messages in sequence. Acquisition devices with numbers add their own numbers to the normal inspection messages after receiving them. Acquisition devices without numbers select an unused number as their own number after receiving the normal inspection messages and add this number to the normal inspection messages. Finally, the normal inspection messages with the numbers of each acquisition device are sent to the monitoring device. Each acquisition device generates its own source MAC address based on its own number.

[0009] Its beneficial effects are as follows: To solve the problem of errors and low efficiency in manually setting and checking the source MAC addresses of devices in a ring network, this invention automatically detects data acquisition devices with conflicting numbers by sending different status messages to the unidirectional ring network, and re-numbers the devices. This allows the data acquisition devices to generate their own source MAC addresses based on their own numbers, enter normal working mode, and then send the data they have collected to the monitoring device and respond to the control commands issued by the monitoring device, thereby improving production efficiency and reducing the possibility of errors.

[0010] Furthermore, in step 1), the monitoring device starts timing from the time the initial inspection message is sent. If the initial inspection message is not received within the specified time, the monitoring device continues to maintain the initial inspection state and sends the initial inspection message.

[0011] Its beneficial effects are: preventing the data acquisition devices from disconnecting or some data acquisition devices from powering up slowly in the ring network, which would prevent the monitoring device from properly collecting the initial inspection messages and thus prevent the data acquisition devices from working properly, thereby effectively improving production efficiency and reducing the error rate.

[0012] Furthermore, in step 2), the monitoring device starts timing from the time it sends the conflict inspection message. If the conflict inspection message is not received within the specified time, the monitoring device continues to maintain the conflict inspection state and sends the conflict inspection message.

[0013] Its beneficial effects are: preventing the acquisition devices from disconnecting or some acquisition devices from powering up slowly in the ring network, which would prevent the monitoring device from properly collecting conflict inspection messages and thus prevent the acquisition devices from working properly, thereby improving production efficiency and reducing the possibility of errors.

[0014] Furthermore, in step 3), the monitoring device starts timing from the time it sends the normal inspection message. If the normal inspection message is not received within the specified time, the monitoring device switches to the initial inspection state and sends the initial inspection message.

[0015] Its beneficial effects are: to prevent situations in the ring network where the acquisition devices disconnect or some acquisition devices power on slowly, which would prevent the monitoring devices from properly collecting normal inspection messages and thus prevent the acquisition devices from working properly.

[0016] To address the aforementioned technical problems, this invention also provides a new energy power station data acquisition and monitoring system. This system includes a monitoring device and multiple data acquisition devices, which are sequentially connected to form a ring network and communicate with the monitoring device through a ring network switch. The system is characterized by generating the source MAC address of each device using the following method:

[0017] 1) The monitoring device sends an initial inspection message to the ring network. The acquisition devices in the ring network receive and transmit the initial inspection message in sequence. The acquisition devices that have been assigned numbers add their own numbers to the initial inspection message and send it to the monitoring device. The monitoring device determines whether there is a conflict between the numbers of each acquisition device based on the received initial inspection message. If there is a conflict, proceed to step 2); if there is no conflict, proceed to step 3).

[0018] 2) The monitoring device sends a conflict inspection message to the ring network. The acquisition device receives and transmits the conflict inspection message in sequence. After receiving the conflict inspection message, each acquisition device clears its own number. After the monitoring device retrieves the conflict inspection message, it executes step 1).

[0019] 3) The monitoring device sends normal inspection messages to the ring network. The acquisition devices receive and transmit normal inspection messages in sequence. Acquisition devices with numbers add their own numbers to the normal inspection messages after receiving them. Acquisition devices without numbers select an unused number as their own number after receiving the normal inspection messages and add this number to the normal inspection messages. Finally, the normal inspection messages with the numbers of each acquisition device are sent to the monitoring device. Each acquisition device generates its own source MAC address based on its own number.

[0020] Its beneficial effects are as follows: To solve the problem of errors and low efficiency in manually setting and checking the source MAC addresses of devices in a ring network, this invention, based on the above system, automatically detects data acquisition devices with conflicting numbers by sending different status messages to the unidirectional ring network, and re-numbers the devices. This allows the data acquisition devices to generate their own source MAC addresses based on their own numbers, enter normal working mode, and then send the data they have collected to the monitoring device and respond to the control commands issued by the monitoring device, thereby improving production efficiency and reducing the possibility of errors.

[0021] Furthermore, in step 1), the monitoring device starts timing from the time the initial inspection message is sent. If the initial inspection message is not received within the specified time, the monitoring device continues to maintain the initial inspection state and sends the initial inspection message.

[0022] Its beneficial effects are: preventing the data acquisition devices from disconnecting or some data acquisition devices from powering up slowly in the ring network, which would prevent the monitoring device from properly collecting the initial inspection messages and thus prevent each data acquisition device from working properly, thereby reducing the error rate.

[0023] Furthermore, in step 2), the monitoring device starts timing from the time it sends the conflict inspection message. If the conflict inspection message is not received within the specified time, the monitoring device continues to maintain the conflict inspection state and sends the conflict inspection message.

[0024] Its beneficial effects are: to prevent situations in the ring network where the acquisition devices disconnect or some acquisition devices power on slowly, which would prevent the monitoring device from properly collecting conflict inspection messages and thus prevent each acquisition device from working properly, thereby reducing the possibility of errors and ensuring the stable operation of the system.

[0025] Furthermore, in step 3), the monitoring device starts timing from the time it sends the normal inspection message. If the normal inspection message is not received within the specified time, the monitoring device switches to the initial inspection state and sends the initial inspection message.

[0026] Its beneficial effects are: to prevent situations in the ring network where the acquisition devices disconnect or some acquisition devices power on slowly, which would prevent the monitoring devices from properly collecting normal inspection messages, thus preventing the acquisition devices from working properly and ensuring the stable operation of the system. Attached Figure Description

[0027] Figure 1 This is a schematic topology diagram of a prior art new energy power station ring network system.

[0028] Figure 2 This is a schematic diagram illustrating the switching between inspection states of the monitoring device of the present invention;

[0029] Figure 3 This is a flowchart of the switching between inspection states of the monitoring device of the present invention;

[0030] Figure 4 This is a flowchart of the inspection process for the monitoring device of the present invention. Detailed Implementation

[0031] The basic concept of this invention is as follows: A monitoring device sends an initial inspection message; the acquisition devices add their respective numbers to the initial inspection message and ultimately report it to the monitoring device. If the monitoring device detects a number conflict in the received initial inspection message, it sends a conflict inspection message. Upon receiving the conflict inspection message, the acquisition device clears its own number and reports the conflict inspection message to the monitoring device. Upon receiving the conflict inspection message, the monitoring device resends the initial inspection message, repeating the above steps until no number conflict is detected in the initial inspection message. The monitoring device then sends a normal inspection message. Acquisition devices without numbers select an unused number, and both acquisition devices with numbers add their own numbers to the initial inspection message. Upon receiving the normal inspection message, the monitoring device generates its own source MAC address and enters normal operating mode. Based on this concept, a new energy power station ring network system and its automatic ring network source MAC address generation method can be realized.

[0032] The present invention will now be described in detail with reference to the accompanying drawings and method embodiments.

[0033] System Implementation Example:

[0034] The present invention discloses a ring network system for a new energy power station. The system includes a monitoring device and multiple acquisition devices. The multiple acquisition devices are sequentially connected to form a ring network. The monitoring device is connected to the ring network through a ring network switching device. The monitoring device is used to send various messages to the ring network and retrieve the sent messages. The acquisition devices are used to perform related operations based on the received messages.

[0035] Based on the above system, an automatic ring network source MAC generation method is adopted. This method automatically detects the serial number of each acquisition device and automatically generates the ring network source MAC address. This addresses the problem of errors and low efficiency associated with manually setting and checking the source MAC addresses of devices in a ring network. The specific implementation steps are as follows (wherein, switching between monitoring device inspection states is as follows...). Figure 2 and Figure 3 As shown, the inspection flowchart of the monitoring device of the present invention is as follows: Figure 4 As shown):

[0036] Step 1: The monitoring device sends and receives initial inspection messages to the data acquisition device to check for numbering conflicts between the data acquisition devices.

[0037] After power-on, the monitoring device switches to the initial inspection state, such as... Figure 2As shown in process 1, an initial inspection message is sent to the ring network through the ring network switch. After receiving the initial inspection message, the acquisition device in the ring network determines whether it has been assigned a number. If it has been assigned a number, it adds the number to the end of the initial inspection message and sends the initial inspection message to the next acquisition device. If it has not been assigned a number, it simply forwards the initial inspection message. Finally, the initial inspection message is input into the monitoring device through the ring network switch to determine whether there is a conflict in the acquisition device number in the initial inspection message. If there is a conflict, step 2 is executed; if there is no conflict, step 3 is executed.

[0038] Step 2: The monitoring device sends and receives conflict inspection messages to the data acquisition device, and all data acquisition devices in the ring network clear their own numbers.

[0039] After the monitoring device detects a conflict in the initial inspection message, it switches to conflict inspection mode, such as... Figure 2 As shown in process 3, a collision detection message is sent to the ring network via the ring switch. After receiving the collision detection message, the acquisition device clears its own number and sends the collision detection message to the next acquisition device. Finally, the collision detection message is input into the monitoring device through the ring switch, and step one is executed again. Figure 2 The process is shown in step 7.

[0040] Step 3: The monitoring device sends and receives normal inspection messages to the data acquisition device, and each data acquisition device sends service messages through the ring network switch.

[0041] After the monitoring device determines that there are no conflicts in the numbering of the initial inspection message, it switches to normal inspection mode, such as... Figure 2 As shown in process 2, a normal inspection message is sent to the ring network through the ring network switch. After receiving the normal inspection message, if the acquisition device does not have its own number, it selects an unused number as its own number and adds this number to the end of the normal inspection message to indicate that the number has been used, and forwards it to the next acquisition device; if it already has a number, it adds the number to the end of the normal inspection message and sends the message to the next acquisition device; finally, the normal inspection message is input into the monitoring device through the ring network switch; after receiving the normal inspection message, the acquisition device generates its own source MAC address according to the number, enters the normal working mode, sends the collected data to the monitoring device, and responds to the control commands issued by the monitoring device.

[0042] If the monitoring device switches to the initial inspection state and sends an initial inspection message, and does not receive an initial inspection message within 10 seconds, it will continue to maintain the initial inspection state and send an initial inspection message again. Figure 2As shown in process 4; if the monitoring device does not receive a conflict inspection message within 10 seconds after switching to conflict inspection mode and sending a conflict inspection message, it will maintain the current conflict inspection mode and send a conflict inspection message, such as... Figure 2 As shown in process 8; if the monitoring device does not receive a normal inspection message within 10 seconds after switching to normal inspection mode and sending a normal inspection message, it will switch back to initial inspection mode, as shown in process 8. Figure 2 As shown in process 6, the monitoring device switches to normal inspection mode and sends an initial inspection message; after receiving the normal inspection message, it maintains the current normal inspection mode and sends a normal inspection message, as shown in process 6. Figure 2 The process is shown in step 5.

[0043] In this embodiment, if the monitoring device does not receive an inspection message within 10 seconds after sending the corresponding message in each state, it will switch to or maintain the existing state. This is not limited to 10 seconds; the time can also be set according to the specific situation.

[0044] This invention automatically detects data acquisition devices with conflicting numbers by sending messages of different statuses to a unidirectional ring network, and renumbers these devices, enabling them to operate normally, upload their collected data to the monitoring device, and respond to control commands issued by the monitoring device. This solves the various hidden dangers and inconveniences of manually assigning source MAC addresses in a ring network, improves production efficiency, and reduces the possibility of errors.

[0045] Method Implementation Examples:

[0046] The present invention discloses an automatic source MAC address generation method for ring networks. By sending messages of different states to a unidirectional ring network, the method automatically detects data acquisition devices with conflicting numbers and re-numbers the devices. This allows the data acquisition devices to generate their own source MAC addresses based on their own numbers, enter normal working mode, and then send the data they have collected to the monitoring device. This method has been described in detail in the system embodiments and will not be repeated here.

Claims

1. A method for automatically generating source MAC addresses in a ring network, characterized in that, Includes the following steps: 1) The monitoring device sends an initial inspection message to the ring network. The acquisition devices in the ring network receive and transmit the initial inspection message in sequence. Acquisition devices that have been assigned numbers add their own numbers to the initial inspection message and send the initial inspection message to the next acquisition device. Acquisition devices that have not been assigned numbers simply forward the initial inspection message. Finally, the initial inspection message is sent to the monitoring device. The monitoring device determines whether there is a conflict in the numbers of each acquisition device based on the received initial inspection message. If there is a conflict, step 2) is executed. If there is no conflict, proceed to step 3). 2) The monitoring device sends a conflict inspection message to the ring network. The acquisition devices in the ring network receive and transmit the conflict inspection message in sequence. After receiving the conflict inspection message, each acquisition device clears its own number and sends the conflict inspection message to the next acquisition device. Finally, the conflict inspection message is sent to the monitoring device. After the monitoring device receives the conflict inspection message, it executes step 1). 3) The monitoring device sends a normal inspection message to the ring network. The acquisition devices in the ring network receive and transmit the normal inspection messages in sequence. After receiving the normal inspection message, the acquisition device with a number adds its own number to the normal inspection message and sends the normal inspection message to the next acquisition device. After receiving the normal inspection message, the acquisition device without a number selects an unused number as its own number, adds this number to the normal inspection message, and forwards it to the next acquisition device. Finally, a normal inspection message with the number of each acquisition device will be sent to the monitoring device; Each acquisition device generates its own source MAC address based on its own serial number.

2. The method for automatically generating ring network source MAC addresses according to claim 1, characterized in that, In step 1), the monitoring device starts timing from the time the initial inspection message is sent. If the initial inspection message is not received within the specified time, the monitoring device will continue to maintain the initial inspection state and send the initial inspection message.

3. The method for automatically generating ring network source MAC addresses according to claim 1, characterized in that, In step 2), the monitoring device starts timing from the time it sends the conflict inspection message. If the conflict inspection message is not received within the specified time, the monitoring device will continue to maintain the conflict inspection state and send the conflict inspection message.

4. The method for automatically generating ring network source MAC addresses according to claim 1, characterized in that, In step 3), the monitoring device starts timing from the time it sends the normal inspection message. If the normal inspection message is not received within the specified time, the monitoring device switches to the initial inspection state and sends the initial inspection message.

5. A data acquisition and monitoring system for a new energy power station, comprising a monitoring device and multiple data acquisition devices, wherein the multiple data acquisition devices are sequentially connected to form a ring network, and are connected to the monitoring device via a ring network switch; characterized in that, The system uses the following method to generate the source MAC address of each acquisition device: 1) The monitoring device sends an initial inspection message to the ring network. The acquisition devices in the ring network receive and transmit the initial inspection message in sequence. Acquisition devices that have been assigned numbers add their own numbers to the initial inspection message and send the initial inspection message to the next acquisition device. Acquisition devices that have not been assigned numbers simply forward the initial inspection message. Finally, the initial inspection message is sent to the monitoring device. The monitoring device determines whether there is a conflict in the numbers of each acquisition device based on the received initial inspection message. If there is a conflict, step 2) is executed. If there is no conflict, proceed to step 3). 2) The monitoring device sends a conflict inspection message to the ring network. The acquisition devices in the ring network receive and transmit the conflict inspection message in sequence. After receiving the conflict inspection message, each acquisition device clears its own number and sends the conflict inspection message to the next acquisition device. Finally, the conflict inspection message is sent to the monitoring device. After the monitoring device receives the conflict inspection message, it executes step 1). 3) The monitoring device sends a normal inspection message to the ring network. The acquisition devices in the ring network receive and transmit the normal inspection messages in sequence. After receiving the normal inspection message, the acquisition device with a number adds its own number to the normal inspection message and sends the normal inspection message to the next acquisition device. After receiving the normal inspection message, the acquisition device without a number selects an unused number as its own number, adds this number to the normal inspection message, and forwards it to the next acquisition device. Finally, a normal inspection message with the number of each acquisition device will be sent to the monitoring device; Each acquisition device generates its own source MAC address based on its own serial number.

6. The new energy power station data acquisition and monitoring system according to claim 5, characterized in that, In step 1), the monitoring device starts timing from the time the initial inspection message is sent. If the initial inspection message is not received within the specified time, the monitoring device will continue to maintain the initial inspection state and send the initial inspection message.

7. The new energy power station data acquisition and monitoring system according to claim 5, characterized in that, In step 2), the monitoring device starts timing from the time it sends the conflict inspection message. If the conflict inspection message is not received within the specified time, the monitoring device will continue to maintain the conflict inspection state and send the conflict inspection message.

8. The new energy power station data acquisition and monitoring system according to claim 5, characterized in that, In step 3), the monitoring device starts timing from the time it sends the normal inspection message. If the normal inspection message is not received within the specified time, the monitoring device switches to the initial inspection state and sends the initial inspection message.

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