CN112601243B - Hybrid networking dynamic routing method for power communication network - Google Patents

Abstract

The invention discloses a hybrid networking dynamic routing selection method for a power communication network, which includes obtaining network performance index requirements of power services during transmission; real-time statistics on the network performance indexes of the current 5G public network and power private network; When the power service needs to be transmitted, the optimal transmission network is selected according to the network performance index requirements of the target power service and the network performance indicators of the 5G public network and the power private network; the target power service is transmitted to complete the hybrid networking for the power communication network Dynamic routing. The invention can effectively complete the load balancing between the 5G public network and the power private network, so that the 5G public network can be more scientifically integrated with the power private network; and the method of the invention has higher reliability, better practicability and wider application range .

Description

Hybrid networking dynamic routing method for power communication network

technical field

The invention belongs to the field of electrical automation, and in particular relates to a hybrid networking dynamic routing method for an electric power communication network.

Background technique

With the development of economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy in people's production and life, bringing endless convenience to people's production and life. Therefore, the stable and reliable operation of the power system has become one of the most important tasks of the power system.

The power communication network is an important infrastructure that carries the information exchange of the power system. It covers all aspects of the production and management of the internal power system. In recent years, with the deepening of the intelligence of the power grid, the power communication network carries more heavy and comprehensive support and protection tasks.

The fifth generation mobile communication technology (5G for short) is the latest generation of cellular mobile communication technology. The biggest change of 5G is from the communication between people to the communication between people and things and between things and things, to realize the interconnection of all things. The performance goals of 5G are high data rates, reduced latency, energy savings, lower costs, increased system capacity, and massive device connectivity. The commercial application of 5G networks satisfies the smart grid's urgent needs for mobile wireless network security, reliability, and low latency.

However, although the introduction of 5G technology can reduce the transmission pressure of power communication networks, the high-density heterogeneous network characteristics of 5G networks may affect the nominal end-to-end delay characteristics of 5G, so it is not easy to transfer power data from 5G public networks. network transmission. Moreover, the coexistence and hybrid networking of 5G and private power networks in the current power system also cause routing problems in the transmission of power system data.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a hybrid networking dynamic routing method for power communication network with high reliability, good practicability and wide application range.

The hybrid networking dynamic routing method for the power communication network provided by the present invention includes the following steps:

S1. Analyze the power service requirements of the power communication network, so as to obtain the network performance index requirements of the power service during transmission;

S2. Real-time statistics of the current 5G public network performance indicators and power private network performance indicators;

S3. When the target power service needs to be transmitted, select the optimal transmission network according to the network performance index requirements of the power service obtained in step S1 and the 5G public network network performance index and the power private network network performance index obtained in step S2;

S4. According to the optimal transmission network selected in step S3, the target electric power service is transmitted, so as to complete the hybrid networking dynamic routing selection for the electric power communication network.

The network performance index requirement described in step S1 is specifically the network performance index requirement _W including the minimum throughput Tw required by the service data and the maximum transmission delay _Dw that the service data can tolerate.

The real-time statistics of the current 5G public network performance indicators and the power private network network performance indicators described in step S2 are specifically the real-time statistics of the current 5G public network network performance indicators K ₁ and the power private network performance indicators K ₂ , wherein the 5G public network performance indicators K 2 . The network network performance index K ₁ includes the 5G public network throughput T ₁ and the 5G public network transmission delay D ₁ , and the power private network network performance index K ₂ includes the power private network throughput T ₂ and the private power network transmission delay D ₂ .

When the target power service needs to be transmitted in step S3, specifically, when the target power service needs to be transmitted, the network performance index requirements during transmission of the target power service obtained in step S1 are written into an optional field of the IP packet header.

The selection of the optimal transmission network described in step S3 is specifically to adopt the following steps to select the optimal transmission network:

A. With throughput T as the abscissa and transmission delay D as the ordinate, establish a D-T coordinate system;

区域Ⅱ：

区域Ⅲ：

区域Ⅳ：

其中T_w为目标业务数据需要的最低吞吐量；D_w为目标业务数据能够容忍的最高传输时延；B. Taking the straight lines T= _Tw and D= _Dw as the boundaries, divide the first quadrant of the DT coordinate system established in step S1 into four regions, which are: Region I:

Area II:

Area III:

Region IV:

Among them, _Tw is the minimum throughput required by the target service data; _Dw is the maximum transmission delay that the target service data can tolerate;

C. Use the following rules to select the optimal transmission network:

If point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in the same area:

Condition 1: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in region I, and |WK ₁ |>|WK ₂ |, then select the 5G public network as the optimal transmission network;

Condition 2: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area II, and D ₁ < D ₂ , the 5G public network is selected as the optimal transmission network;

Condition 3: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area III, and T ₁ > T ₂ , then select the 5G public network as the optimal transmission network;

Condition 4: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area IV, and |WK ₁ |<|WK ₂ |, then select the 5G public network as the optimal transmission network;

If conditions 1 to 4 are not satisfied, select the power dedicated network as the optimal transmission network;

If point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are not in the same area:

Condition a: If point K ₁ (T ₁ , D ₁ ) is in area I, or point K ₂ (T ₂ , D ₂ ) is in area IV, then select the 5G public network as the optimal transmission network;

Condition b: If the point K ₁ (T ₁ , D ₁ ) is in the area IV, or the point K ₂ (T ₂ , D ₂ ) is in the area I, then select the power dedicated network as the optimal transmission network;

Condition c: If |WK ₁ |＜|WK ₂ |, select the 5G public network as the optimal transmission network;

If none of the conditions a to c are satisfied, the power private network is selected as the optimal transmission network;

Among them, K ₁ is the network performance index of the 5G public network; T ₁ is the throughput of the 5G public network; D ₁ is the transmission delay of the 5G public network; K ₂ is the performance index of the private power network; T ₂ is the throughput of the private power network; D ₂ is the transmission delay of the private power network; |WK ₁ | is the Euclidean distance between point W and point K ₁ ; |WK ₂ | is the Euclidean distance between point W and point K ₂ , the coordinates of point W is W(T _w , D _w ).

In step S4, according to the optimal transmission network selected in step S3, the target electric power service is transmitted, specifically, if the electric power private network is selected as the optimal transmission network, the target electric power service data is directly sent; if the 5G public network is selected As the optimal transmission network, the target power service data is encrypted and then sent from the 5G public network.

The hybrid networking dynamic routing method for the power communication network provided by the present invention analyzes the network performance indicators required by different power business data, and periodically counts the current network performance of the 5G public network and the power private network. The network performance requirements of the power data and the network performance of the current hybrid networking, so that the data of different power services can be routed more scientifically; at the same time, the present invention also provides a detailed routing algorithm, which can effectively complete the 5G public network and the power private network. The load balance between the 5G public network and the electric power private network can be more scientifically integrated; and the method of the present invention has higher reliability, better practicability and wider application range.

Description of drawings

FIG. 1 is a schematic flow chart of the method of the present invention.

FIG. 2 is a schematic diagram of the D-T coordinate system established by the method of the present invention.

Detailed ways

Figure 1 is a schematic flow chart of the method of the method of the present invention: the hybrid networking dynamic routing method for the power communication network provided by the present invention includes the following steps:

S1. Analyze the power service requirements of the power communication network, so as to obtain the network performance index requirements of the power service during transmission; specifically, the network performance index requirements _W include the minimum throughput Tw required by the service data and the maximum tolerated by the service data. transmission delay D _w ;

S2. Real-time statistics of the current 5G public network performance indicators and power private network performance indicators; specifically, real-time statistics of the current 5G public network performance indicators K ₁ and power private network performance indicators K ₂ , of which the 5G public network performance indicators The index K ₁ includes the throughput T ₁ of the 5G public network and the transmission delay D ₁ of the 5G public network, and the network performance index K ₂ of the power private network includes the throughput T ₂ of the private power network and the transmission delay D ₂ of the private power network;

S3. When the target electric power service needs to be transmitted, write the network performance index requirements of the target electric power service obtained in step S1 into the optional field of the IP packet header, and then according to the network performance index requirements of the electric power service obtained in step S1 Select the optimal transmission network with the 5G public network network performance indicators and the power private network performance indicators obtained in step S2; specifically, the following steps are used to select the optimal transmission network:

A. With throughput T as the abscissa and transmission delay D as the ordinate, establish a D-T coordinate system;

区域Ⅱ：

区域Ⅲ：

区域Ⅳ：

其中T_w为目标业务数据需要的最低吞吐量；D_w为目标业务数据能够容忍的最高传输时延；具体如图2所示；B. Taking the straight lines T= _Tw and D= _Dw as the boundaries, divide the first quadrant of the DT coordinate system established in step S1 into four regions, which are: Region I:

Area II:

Area III:

Region IV:

Among them, _Tw is the minimum throughput required by the target service data; _Dw is the maximum transmission delay that the target service data can tolerate; the details are shown in Figure 2;

C. Use the following rules to select the optimal transmission network:

If point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in the same area:

Condition 1: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in region I, and |WK ₁ |>|WK ₂ |, then select the 5G public network as the optimal transmission network;

Condition 2: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area II, and D ₁ < D ₂ , the 5G public network is selected as the optimal transmission network;

Condition 3: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area III, and T ₁ > T ₂ , then select the 5G public network as the optimal transmission network;

Condition 4: If both point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are in area IV, and |WK ₁ |<|WK ₂ |, then select the 5G public network as the optimal transmission network;

If conditions 1 to 4 are not satisfied, select the power dedicated network as the optimal transmission network;

If point K ₁ (T ₁ , D ₁ ) and point K ₂ (T ₂ , D ₂ ) are not in the same area:

Condition a: If point K ₁ (T ₁ , D ₁ ) is in area I, or point K ₂ (T ₂ , D ₂ ) is in area IV, then select the 5G public network as the optimal transmission network;

Condition b: If the point K ₁ (T ₁ , D ₁ ) is in the area IV, or the point K ₂ (T ₂ , D ₂ ) is in the area I, then select the power dedicated network as the optimal transmission network;

Condition c: If |WK ₁ |＜|WK ₂ |, select the 5G public network as the optimal transmission network;

If none of the conditions a to c are satisfied, the power private network is selected as the optimal transmission network;

Among them, K ₁ is the network performance index of the 5G public network; T ₁ is the throughput of the 5G public network; D ₁ is the transmission delay of the 5G public network; K ₂ is the performance index of the private power network; T ₂ is the throughput of the private power network; D ₂ is the transmission delay of the private power network; |WK ₁ | is the Euclidean distance between point W and point K ₁ ; |WK ₂ | is the Euclidean distance between point W and point K ₂ ; the coordinates of point W is W(T _w , D _w );

The above process of selecting the optimal transmission network can be described in the following pseudocode:

Input: the coordinates of the four regions I, II, III, IV, W, K ₁ and K ₂ ;

1: if (K ₁ and K ₂ are in the same region)

2: if (K ₁ and K ₂ are in region I and |WK ₁ |>|WK ₂ |)//The index of the 5G public network is better

3: return 1;

4: if (K ₁ and K ₂ are in region II and D ₁ <D ₂ )//Bandwidth is satisfied and the delay of the 5G public network is lower

5: return 1;

6: if (K ₁ and K ₂ are in area III and T ₁ > T ₂ )//The delay is satisfied and the 5G public network throughput rate is higher

7: return 1;

8: if (K ₁ and K ₂ are in region IV and |WK ₁ |<|WK ₂ |)//5G public network is more in line with expectations

9:return 1;

10: return 0;

11: else // K ₁ and K ₂ are in different regions

12:if (K ₁ is in area I or K ₂ is in area IV)//5G public network meets the standard or the private power network does not meet any indicators

13: return 1;

13:if(K ₂ is in area I or K ₁ is in area IV)//The power private network meets the standard or the 5G public network does not meet any indicators

14: return 0;

15:if(|WK ₁ |＜|WK ₂ |)//When the two meet different indicators, choose the one that is more in line with expectations

16: return 1;

17: return 0;

Output: select 5G public network or power private network, return 1 selects 5G public network, return 0 selects power private network;

S4. According to the optimal transmission network selected in step S3, the target power service is transmitted, thereby completing the hybrid networking dynamic routing selection for the power communication network; specifically, if the power private network is selected as the optimal transmission network, the target power The power service data is sent directly; if the 5G public network is selected as the optimal transmission network, the target power service data is encrypted and then sent from the 5G public network.

After the transmission is completed, the receiving end gateway directly forwards the business data received from the power private network; for the business data received from the 5G public network, it is now necessary to decode and security check before forwarding to ensure the power private network. safe operation.

Claims (5)

1. A dynamic routing method for hybrid networking of a power communication network comprises the following steps:

s1, analyzing the power service requirement of a power communication network, so as to obtain the network performance index requirement of the power service during transmission;

s2, counting the current network performance indexes of the 5G public network and the network performance indexes of the special power network in real time;

s3, when the target power service needs to be transmitted, selecting an optimal transmission network according to the network performance index requirement of the power service obtained in the step S1, the network performance index of the 5G public network obtained in the step S2 and the network performance index of the special power network; specifically, the following steps are adopted to select an optimal transmission network:

A. establishing a D-T coordinate system by taking the throughput T as an abscissa and the transmission delay D as an ordinate;

B. by a straight line T ═ T_w、D＝D_wFor boundary, the first quadrant of the D-T coordinate system established in step S1 is divided into four regions, which are: and (3) region I:

and (3) region II:

and (3) a region III:

and a region IV:

wherein T is_wThe minimum throughput required for the target service data; d_wThe highest transmission delay which can be tolerated by the target service data is set;

C. the following rules are used to select the optimal transport network:

if point K₁(T₁,D₁) And point K₂(T₂,D₂) In the same area:

condition 1: if point K₁(T₁,D₁) And point K₂(T₂,D₂) Are all in region I, and | WK₁|＞|WK₂If yes, selecting a 5G public network as an optimal transmission network;

condition 2: if point K₁(T₁,D₁) And point K₂(T₂,D₂) Are all in region II, and D₁＜D₂Selecting a 5G public network as an optimal transmission network;

condition 3: if point K₁(T₁,D₁) And point K₂(T₂,D₂) Are all in region III, and T₁＞T₂Selecting a 5G public network as an optimal transmission network;

condition 4: if point K₁(T₁,D₁) And point K₂(T₂,D₂) Are all in region IV and | WK₁|＜|WK₂If yes, selecting a 5G public network as an optimal transmission network;

if the conditions 1-4 are not met, selecting the power private network as an optimal transmission network;

if point K₁(T₁,D₁) And point K₂(T₂,D₂) Not in the same area:

condition a: if point K₁(T₁,D₁) In region I, or point K₂(T₂,D₂) In the area IV, a 5G public network is selected as an optimal transmission network;

condition b: if point K₁(T₁,D₁) In region IV, or point K₂(T₂,D₂) In the area I, selecting a power private network as an optimal transmission network;

condition c: if | WK₁|＜|WK₂If yes, selecting a 5G public network as an optimal transmission network;

if the conditions a to c are not met, selecting the power private network as an optimal transmission network;

wherein, K₁The network performance index is 5G public network performance index; t is₁The throughput is 5G public network throughput; d₁5G public network transmission delay; k is₂The performance index of the power private network is obtained; t is₂The throughput of the power private network; d₂Transmitting time delay for the power private network; i WK₁Is point W and point K₁The euclidean distance between; i WK₂Is point W and point K₂The euclidean distance between them,the coordinates of point W are W (T)_w,D_w)；

And S4, transmitting the target power service according to the optimal transmission network selected in the step S3, thereby completing the hybrid networking dynamic routing selection for the power communication network.

2. The method according to claim 1, wherein the network performance indicator requirement in step S1, specifically the network performance indicator requirement W, comprises a minimum throughput T required for the service data_wAnd the highest transmission delay D that the service data can tolerate_w。

3. The method according to claim 2, wherein the step S2 is performed to count the network performance index of the current 5G public network and the network performance index of the private power grid in real time, specifically to count the network performance index K of the current 5G public network in real time₁And performance index K of private power network₂Wherein 5G public network performance index K₁Including 5G public network throughput T₁And 5G public network transmission time delay D₁Network performance index K of private power network₂Including power private network throughput T₂And power private network transmission time delay D₂。

4. The method according to claim 3, wherein the step S3 is executed to write the network performance indicator requirement of the target power service in transmission acquired in step S1 into an optional field of the IP header when the target power service needs to be transmitted, specifically when the target power service needs to be transmitted.

5. The hybrid networking dynamic routing method for power communication networks according to claim 4, wherein the step S4 is to transmit the target power service according to the optimal transmission network selected in the step S3, specifically, if the private power network is selected as the optimal transmission network, the target power service data is directly sent; and if the 5G public network is selected as the optimal transmission network, encrypting the target power service data and then transmitting the encrypted data from the 5G public network.

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