Information transmission method, system, device and storage medium under periodic scheduling strategy

Abstract

The present invention provides an information transmission method, system, device and storage medium under a periodic scheduling strategy, the method comprising: establishing an information transmission network and setting parameters of the information transmission network; designing a network cumulative pressure index, and dividing the transmission pressure of the information transmission network into four levels through the index, when the transmission pressure is at the network collapse level, adding a periodic scheduling strategy in the information transmission network to reduce the transmission pressure of the information transmission network to a controllable pressure level; setting a maximum stable scheduling cycle based on the size of the transmission server cache space of the information transmission network, and further reducing the scheduling cycle to the maximum stable scheduling cycle; setting a transmission network security monitoring layer, monitoring the information transmission network and adjusting the scheduling cycle in real time. The present invention solves the communication problem of how to stably transmit data packets when the arrival rate of data packets is higher than the system service rate by periodically clearing the data packets stranded in the information transmission network.

Description

Technical Field

[0001] The present invention relates to the technical field of communication engineering, and in particular to an information transmission method, system, device and storage medium under a periodic scheduling strategy. Background Art

[0002] With the advancement of information network technology, technological innovation and industrial transformation have been triggered in various industries. In the actual application of information transmission networks in different industries, the requirements for the stability and timeliness of information transmission networks are getting higher and higher. For example, in application scenarios such as Internet of Vehicles and telemedicine, a stable, low-latency, and highly reliable information transmission network is essential. However, in traditional data transmission networks, when the arrival rate of data packets is higher than the service rate of the network, the system will experience problems such as packet loss, high latency, and system crashes that are difficult to avoid.

[0003] In traditional data transmission networks, the automatic request retransmission function can be used to retransmit lost data packets, but this method will cause data transmission to lack real-time performance under high latency conditions. In traditional methods, a transmission rate control algorithm can also be used to control the data packet transmission rate to calculate and control the data packet transmission rate in the current data transmission network, such as using a TCP-friendly rate control algorithm. However, it takes a long time to stably calculate and control the data packet transmission rate through a transmission rate control algorithm. When high latency or high packet loss rate already exists in the network, the transmission rate control algorithm cannot accurately calculate the data packet transmission rate. Summary of the invention

[0004] Purpose of the invention: The first purpose of the present invention is to provide an information transmission method under a periodic scheduling strategy that enables an information transmission network to maintain stable operation. The second purpose is to provide an information transmission system, device and storage medium under a periodic scheduling strategy.

[0005] Technical solution: An information transmission method under a periodic scheduling strategy, comprising the following steps:

[0006] S1. Establish an information transmission network in a discrete time system and set the parameters of the information transmission network;

[0007] S2. Using the network cumulative pressure index, the transmission pressure of the information transmission network is divided into four levels, including low pressure level, medium pressure level, controllable pressure level and network collapse level;

[0008] S3. When the transmission pressure of the information transmission network is at the network collapse level, a periodic scheduling strategy is added to the information transmission network to reduce the transmission pressure of the information transmission network to a controllable pressure level;

[0009] S4. After the transmission pressure of the information transmission network is reduced to a controllable pressure level, the maximum stable scheduling period of the periodic scheduling strategy is set based on the cache space size of the transmission server of the information transmission network, and the corresponding maximum value of the network cumulative pressure index of the information transmission network is obtained, and the scheduling period of the periodic scheduling strategy in step S3 is reduced to the maximum stable scheduling period.

[0010] Specifically, step S1 includes: setting the information transmission time slot length of the information transmission network to the minimum time interval of the information transmission network, setting the arrival of information to occur at the beginning of the time slot, and the completion of information transmission to occur at the end of the time slot, encapsulating the information into data packets and transmitting them through a wireless link to the cache area of ​​the transmission server, queuing to receive the transmission service of the transmission server, the transmission system selects a D / D / 1 queuing model, and the data packets complete the data flow directional transmission to the target node through the transmission server.

[0011] Specifically, in step S2, the network cumulative pressure index formula is:

[0012] ,

[0013] Where: is the average network pressure index of the m time slots currently monitored, is the number of packets at the i-th time slot, a is the network pressure constant, is the network cumulative pressure index at the tth time slot, is the number of packets at the tth time slot.

[0014] Specifically, in step S2, the network cumulative pressure index corresponding to the low pressure level is less than 1; the network cumulative pressure index corresponding to the medium pressure level is equal to 1; the network cumulative pressure index corresponding to the controllable pressure level is a constant greater than 1; the network cumulative pressure index corresponding to the network collapse level is greater than 1 and is monotonically non-decreasing.

[0015] Specifically, in step S4, the maximum stable scheduling period formula is:

[0016] ,

[0017] Where: is the maximum stable scheduling period, BS is the cache space of the transmission server cache area, is the network cumulative pressure index at the tth time slot. When , the argmin function outputs The time t value at which the minimum value is taken.

[0018] Specifically, in step S4, the maximum value of the network cumulative pressure index is:

[0019] ,

[0020] Where: is the maximum value of the network cumulative pressure index, is the maximum stable scheduling period.

[0021] Preferably, the information transmission method under the above-mentioned periodic scheduling strategy also includes the following steps:

[0022] S5. Set a transmission network security monitoring layer, monitor the information transmission network through Monte Carlo simulation, and calculate the network cumulative pressure index, compare the monitored network cumulative pressure index with the maximum value of the network cumulative pressure index of the information transmission network, if the monitored network cumulative pressure index is greater than or equal to the maximum value of the network cumulative pressure index of the information transmission network, return to step S4 and reset the maximum stable scheduling period of the periodic scheduling strategy.

[0023] The present invention also provides an information transmission system under a periodic scheduling strategy, comprising:

[0024] System building module: used to establish an information transmission network in a discrete time system and set the parameters of the information transmission network;

[0025] Transmission pressure level classification module: used to classify the transmission pressure of the information transmission network into four levels using the network cumulative pressure index, including low pressure level, medium pressure level, controllable pressure level and network collapse level;

[0026] The first transmission pressure adjustment module is used to add a periodic scheduling strategy in the information transmission network when the transmission pressure of the information transmission network is at a network collapse level, so as to reduce the transmission pressure of the information transmission network to a controllable pressure level;

[0027] The second transmission pressure adjustment module is used to set the maximum stable scheduling period of the periodic scheduling strategy based on the cache space size of the transmission server of the information transmission network when the transmission pressure of the information transmission network is reduced to a controllable pressure level, and obtain the corresponding maximum value of the network cumulative pressure indicator of the information transmission network, and reduce the scheduling period of the periodic scheduling strategy in step S3 to the maximum stable scheduling period.

[0028] The present invention also provides a device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the information transmission method under the above-mentioned periodic scheduling strategy are implemented.

[0029] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the information transmission method under the above-mentioned periodic scheduling strategy are implemented.

[0030] Beneficial effects: Compared with the prior art, the significant effect of the present invention is that the present invention adds a periodic scheduling strategy to the conventional information transmission network, and adaptively adjusts the scheduling cycle according to the parameters of the information transmission network, so as to periodically clear the data packets stranded in the information transmission network, and solve the communication problem of how to stably transmit data packets when the arrival rate of data packets is higher than the system service rate. At the same time, a network cumulative pressure index is specifically proposed, which quantitatively describes the transmission pressure of the information transmission network, and divides the transmission pressure into four levels according to the network cumulative pressure index, clearly showing the downgrade adjustment of the transmission pressure by the periodic scheduling strategy. Through the design of the transmission network security monitoring layer, the long-term stable operation of the information transmission network is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a flow chart of the method of the present invention.

[0032] Figure 2 It is a schematic diagram of the network cumulative pressure indicator path under low pressure level.

[0033] Figure 3 It is a schematic diagram of the network cumulative pressure indicator path under medium pressure level.

[0034] Figure 4 It is a schematic diagram of the network cumulative pressure indicator path under the network collapse level.

[0035] Figure 5 It is a schematic diagram of the network cumulative pressure indicator path after adding the periodic scheduling strategy at the network collapse level.

[0036] Figure 6 It is a schematic diagram of the network cumulative pressure indicator path after the scheduling period is adjusted to the maximum stable scheduling period. DETAILED DESCRIPTION

[0037] A preferred embodiment of the present invention is further described below in conjunction with the accompanying drawings.

[0038] Example 1

[0039] See also Figure 1 As shown, this embodiment provides an information transmission method under a periodic scheduling strategy, comprising the following steps:

[0040] S1. Establish an information transmission network in a discrete time system and set the parameters of the information transmission network.

[0041] The information transmission time slot length of the information transmission network is set to the minimum time interval of the information transmission network, and the arrival of information is set to occur at the beginning of the time slot, and the transmission of information is completed at the end of the time slot; the parameters and indicators to be transmitted are encapsulated into data packets, transmitted through wireless links to the cache area of ​​the transmission server, and queued to receive the transmission service of the transmission server. The cache space size of the cache area of ​​the transmission server is recorded as, and the transmission system selects the D / D / 1 queuing model, D represents a fixed-length interval, and the data packet completes the directional transmission of the data flow to the target node through the transmission server.

[0042] The arrival rate of packets is:

[0043]

[0044] Where: is the arrival rate of data packets, is the length of the inter-arrival time of the data packets;

[0045] The transmission rate of the transmission server, that is, the service rate of the network is:

[0046]

[0047] Where: is the service rate of the network, The length of time the network is served.

[0048] S2. The transmission pressure of the information transmission network is divided into four levels using the network cumulative pressure index, including low pressure level, medium pressure level, controllable pressure level and network collapse level.

[0049] The network cumulative pressure index formula is:

[0050] ,

[0051] Where: is the average network pressure index of the m time slots currently monitored. The smaller the value of m, the more sensitive the network cumulative pressure index is. is the number of data packets at the i-th time slot, a is the network pressure constant, which reflects the pressure resistance index of the information transmission network. The larger the value of a is, the lower the pressure resistance index of the information transmission network is. This constant is related to the network structure. is the network cumulative pressure index at the tth time slot, is the number of data packets at the tth time slot. The network cumulative pressure index is positively correlated with the number of data packets in the network at the current time slot.

[0052] The network cumulative pressure index corresponding to the low pressure level is less than 1; the network cumulative pressure index corresponding to the medium pressure level is equal to 1; the network cumulative pressure index corresponding to the controllable pressure level is a constant greater than 1; the network cumulative pressure index corresponding to the network collapse level is greater than 1 and monotonically does not decrease. At this time, the information transmission network has low timeliness, severe packet loss, and the network is facing collapse.

[0053] Without adding a periodic scheduling strategy, the transmission pressure of the network is at one of the low pressure level, the medium pressure level and the network collapse level according to the relationship between the arrival rate of data packets and the service rate of the network.

[0054] Specifically, without adding a periodic scheduling strategy, when the average arrival rate of data packets is less than the average service rate of the network, the transmission pressure of the network is at a low pressure level, and the data packets arriving at the network can be quickly transmitted without causing data packet accumulation; when the average arrival rate of data packets is equal to the average service rate of the network, the transmission pressure of the network is at a medium pressure level, and most of the data packets arriving at the network need to wait for a certain time, but the data packets in the cache space of the network's transmission server cache area have not overflowed, and there is no packet loss in the network, and the data packets can still be transmitted after waiting for a certain time interval; when the average arrival rate of data packets is greater than the average service rate of the network, the transmission pressure of the network is at a network collapse level, and the data packets arriving at the network cannot be transmitted in time, and accumulate in the cache space of the transmission server cache area. Some data packets will overflow, causing the network to discard some data, and the network service capability cannot complete the transmission of all data packets, resulting in poor network timeliness, packet loss, poor data packet timeliness and other problems.

[0055] remember , , we can get the specific expression of the network cumulative pressure index:

[0056]

[0057] Where: t is the number of time slots, i is the length of the inter-arrival time of the data packets, o is the service time length of the network, N ar is any natural number, c , c ’ , b and b ’ It is an intermediate parameter, which is only used to simplify the formula and has no specific meaning.

[0058] when When the information transmission system is at a low pressure level, When the information transmission system is at a medium pressure level, At that time, the information transmission system was at the level of network collapse.

[0059] See also Figure 2-Figure 4 As shown in the figure, it is an example of the change of the network cumulative pressure index over time under three different transmission pressure levels. In this embodiment, the cache space size BS of the transmission server cache area is 3, the service time length of the network is O=3, and the service rate of the network is constant. , Figure 2-Figure 4 The vertical coordinate is The value of is a dimensionless number, and the horizontal axis is t , is the number of time slots, Figure 2-Figure 4 In the figure, the short arrows above the horizontal axis represent the arrival of data packets, and the short arrows below represent the transmission of data packets.

[0060] See also Figure 2 As shown, when the packet arrival interval length , the arrival rate of data packets is When , the arrival rate of data packets is less than the service rate of the network. At this time, the transmission pressure of the network is at a low pressure level. The network pressure indicators obtained by monitoring are shown in Table 1 below.

[0061] Table 1

[0062] t 1 2 3 4 5 6 7 8 ANP(t) 1 1 1 0 1 1 1 0 t 9 10 11 12 13 14 15 16 ANP(t) 1 1 1 0 1 1 1 0 t 17 18 19 20 21 22 23 24 ANP(t) 1 1 1 0 1 1 1 0

[0063] See also Figure 3 As shown, when the packet arrival interval length , the arrival rate of data packets is When , the arrival rate of data packets is equal to the service rate of the network. At this time, the transmission pressure of the network is at a medium pressure level. The monitored network cumulative pressure indicators are shown in Table 2 below.

[0064] Table 2

[0065] t 1 2 3 4 5 6 7 8 ANP(t) 1 1 1 1 1 1 1 1 t 9 10 11 12 13 14 15 16 ANP(t) 1 1 1 1 1 1 1 1 t 17 18 19 20 21 22 23 24 ANP(t) 1 1 1 1 1 1 1 1

[0066] See also Figure 4 As shown, when the packet arrival interval length , the arrival rate of data packets is When , the arrival rate of data packets is greater than the service rate of the network. At this time, the transmission pressure of the network is at the network collapse level. The monitored network cumulative pressure indicators are shown in Table 3 below.

[0067] Table 3

[0068] t 1 2 3 4 5 6 7 8 ANP(t) 1 1 2 1 2 2 2 2 t 9 10 11 12 13 14 15 16 ANP(t) 3 2 3 3 3 3 4 3 t 17 18 19 20 21 22 23 24 ANP(t) 4 4 4 4 5 4 5 5

[0069] S3. When the transmission pressure of the information transmission network is at the network collapse level, a periodic scheduling strategy is added to the information transmission network to reduce the transmission pressure of the information transmission network to a controllable pressure level. Specifically, by adding a periodic scheduling strategy to the information transmission network, the transmission pressure of the network is degraded by periodically clearing the data packets stranded in the network. The transmission pressure level will be reduced from the network collapse level to the controllable pressure level, the network cumulative pressure index will be rapidly reduced, and the network will be freed from collapse.

[0070] See also Figure 5 As shown, when the packet arrival interval length , the arrival rate of data packets is When the arrival rate of data packets is greater than the service rate of the network, the transmission pressure of the network is at the network collapse level. Figure 5 In , the short arrow above the horizontal axis represents the arrival of the data packet, the short arrow below represents the transmission of the data packet, and the long arrow below is used to identify the scheduling period. When the periodic scheduling strategy with a scheduling period of is added, the network cumulative pressure indicators obtained by monitoring are shown in Table 4 below.

[0071] Table 4

[0072] t 1 2 3 4 5 6 7 8 ANP(t) 1 1 2 1 2 2 2 2 t 9 10 11 12 13 14 15 16 ANP(t) 3 2 3 3 3 3 4 3 t 17 18 19 20 21 22 23 24 ANP(t) 4 4 4 4 1 1 2 1

[0073] From Table 4 above, it can be seen that before the maximum stable scheduling period of the periodic scheduling strategy suitable for the information transmission network is calculated based on the cache space size of the cache area of ​​the transmission server, the scheduling period is immediately added, starting from the 20th time slot, the transmission pressure level can be quickly reduced from the network collapse level to the controllable pressure level, and the network can get rid of the collapse.

[0074] S4. After the transmission pressure of the information transmission network is reduced to a controllable pressure level, the maximum stable scheduling period of the periodic scheduling strategy is set based on the cache space size of the transmission server of the information transmission network, and the corresponding maximum value of the network cumulative pressure index of the information transmission network is obtained, and the scheduling period of the periodic scheduling strategy in step S3 is reduced to the maximum stable scheduling period.

[0075] After adding the periodic scheduling strategy to the information transmission network, the transmission pressure of the network has been reduced to a controllable pressure level, but due to the cache space size limit of the transmission server's cache area, the network will still have problems such as packet loss and high information delay. The maximum stable scheduling period of the periodic scheduling strategy suitable for the information transmission network is calculated based on the cache space size of the transmission server's cache area:

[0076] ,

[0077] Where: is the maximum stable scheduling period, BS is the cache space of the transmission server cache area, is the network cumulative pressure index at the tth time slot. When , the argmin function outputs The time t value at which the minimum value is taken.

[0078] The maximum value of the network cumulative pressure index is:

[0079] ,

[0080] Where: is the maximum value of the network cumulative pressure index, is the maximum stable scheduling period.

[0081] See also Figure 6 As shown, when the network service time length , the length of the inter-arrival time of the data packets When the network transmission pressure is at the network collapse level, Figure 6 In the figure, the short arrow above the horizontal axis represents the arrival of the data packet, the short arrow below represents the transmission of the data packet, and the long arrow below is used to mark the scheduling period. After adding the periodic scheduling strategy, the transmission pressure of the network is converted to a controllable pressure level, but the network still has packet loss and delay problems. According to the above formula, the maximum stable scheduling period is calculated. After adjusting the scheduling period to the maximum stable scheduling period in the network, the system's network cumulative pressure index changes from monotonically decreasing to a stable up and down fluctuation within the maximum value of the network cumulative pressure index. The monitored network pressure index is shown in Table 5 below.

[0082] Table 5

[0083] t 1 2 3 4 5 6 7 8 ANP(t) 1 1 2 1 2 2 2 2 t 9 10 11 12 13 14 15 16 ANP(t) 1 1 2 1 2 2 2 2 t 17 18 19 20 21 22 23 24 ANP(t) 1 1 2 1 2 2 2 2

[0084] It can be clearly seen that after adjusting the scheduling cycle, the network cumulative pressure index at any time They are all smaller than the cache space size BS=3 of the transmission server cache area, eliminating the data transmission network crash, packet loss and high latency problems caused by the data packet arrival rate being greater than the network service rate.

[0085] S5. Set the transmission network security monitoring layer, monitor the information transmission network through Monte Carlo simulation when the service rate of the information transmission network is constant, calculate and output the network cumulative pressure index every set number of time slots, compare the monitored network cumulative pressure index with the maximum value of the network cumulative pressure index of the information transmission network, ensure that the monitored network cumulative pressure index is less than the maximum value of the network cumulative pressure index, if the monitored network cumulative pressure index is greater than or equal to the maximum value of the network cumulative pressure index of the information transmission network, then detect the data packet arrival rate of the information transmission network and the service rate of the network in real time, return to step S4, recalculate and set the maximum stable scheduling period of the periodic scheduling strategy, and then adjust the scheduling period to ensure the smooth operation of the information transmission network.

[0086] Example 2

[0087] The present invention also provides an information transmission system corresponding to the information transmission method under the periodic scheduling strategy recorded in Example 1, including:

[0088] System building module: used to establish an information transmission network in a discrete time system and set the parameters of the information transmission network;

[0089] Transmission pressure level classification module: used to classify the transmission pressure of the information transmission network into four levels using the network cumulative pressure index, including low pressure level, medium pressure level, controllable pressure level and network collapse level;

[0090] The first transmission pressure adjustment module is used to add a periodic scheduling strategy in the information transmission network when the transmission pressure of the information transmission network is at a network collapse level, so as to reduce the transmission pressure of the information transmission network to a controllable pressure level;

[0091] The second transmission pressure adjustment module is used to set the maximum stable scheduling period of the periodic scheduling strategy based on the cache space size of the transmission server of the information transmission network when the transmission pressure of the information transmission network is reduced to a controllable pressure level, and obtain the corresponding maximum value of the network cumulative pressure indicator of the information transmission network, and reduce the scheduling period of the periodic scheduling strategy in step S3 to the maximum stable scheduling period.

[0092] The present invention also provides a device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the information transmission method under the periodic scheduling strategy described in Example 1 are implemented.

[0093] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the information transmission method under the periodic scheduling strategy recorded in Example 1 are implemented.

Claims

1. An information transmission method under a periodic scheduling strategy, characterized in that: The following steps are involved: S1. Establish an information transmission network in a discrete time system and set the parameters of the information transmission network; S2. Using the network cumulative pressure index, the transmission pressure of the information transmission network is divided into four levels, including low pressure level, medium pressure level, controllable pressure level and network collapse level; S3. When the transmission pressure of the information transmission network is at the network collapse level, a periodic scheduling strategy is added to the information transmission network to reduce the transmission pressure of the information transmission network to a controllable pressure level; S4, after the transmission pressure of the information transmission network is reduced to a controllable pressure level, the maximum stable scheduling period of the periodic scheduling strategy is set based on the cache space size of the transmission server of the information transmission network, and the corresponding maximum value of the network cumulative pressure index of the information transmission network is obtained, and the scheduling period of the periodic scheduling strategy in step S3 is reduced to the maximum stable scheduling period; S5. Set a transmission network security monitoring layer, monitor the information transmission network through Monte Carlo simulation, and calculate the network cumulative pressure index, compare the monitored network cumulative pressure index with the maximum value of the network cumulative pressure index of the information transmission network, if the monitored network cumulative pressure index is greater than or equal to the maximum value of the network cumulative pressure index of the information transmission network, return to step S4 and reset the maximum stable scheduling period of the periodic scheduling strategy.

2. The information transmission method according to claim 1, characterized in that: The step S1 comprises: The information transmission time slot length of the information transmission network is set to the minimum time interval of the information transmission network. The arrival of information is set to occur at the beginning of the time slot, and the completion of information transmission occurs at the end of the time slot. The information is encapsulated as a data packet and transmitted through a wireless link to the cache area of ​​the transmission server, and then queued to receive the transmission service of the transmission server. The transmission system selects the D / D / 1 queuing model, and the data packet completes the data flow directional transmission to the target node through the transmission server.

3. The information transmission method according to claim 1, characterized in that: In step S2, the network cumulative pressure index formula is: ， Where: is the average network pressure index of the m time slots currently monitored, is the number of packets at the i-th time slot, a is the network pressure constant, is the network cumulative pressure index at the tth time slot, is the number of packets at the tth time slot.

4. The information transmission method according to claim 3, characterized in that: In step S2, the network cumulative pressure index corresponding to the low pressure level is less than 1; the network cumulative pressure index corresponding to the medium pressure level is equal to 1; the network cumulative pressure index corresponding to the controllable pressure level is a constant greater than 1; the network cumulative pressure index corresponding to the network collapse level is greater than 1 and is monotonically non-decreasing.

5. The information transmission method according to claim 1, characterized in that: In step S4, the maximum stable scheduling period formula is: ， Where: is the maximum stable scheduling period, BS is the cache space of the transmission server cache area, is the network cumulative pressure index at the tth time slot. When , the argmin function outputs The time t value at which the minimum value is taken.

6. The information transmission method according to claim 5, characterized in that: In step S4, the maximum value of the network cumulative pressure index is: ， Where: is the maximum value of the network cumulative pressure index, is the maximum stable scheduling period.

7. An information transmission system under a periodic scheduling strategy, characterized in that: include: System building module: used to establish an information transmission network in a discrete time system and set the parameters of the information transmission network; Transmission pressure level classification module: used to classify the transmission pressure of the information transmission network into four levels using the network cumulative pressure index, including low pressure level, medium pressure level, controllable pressure level and network collapse level; The first transmission pressure adjustment module is used to add a periodic scheduling strategy in the information transmission network when the transmission pressure of the information transmission network is at a network collapse level, so as to reduce the transmission pressure of the information transmission network to a controllable pressure level; The second transmission pressure adjustment module is used to set the maximum stable scheduling period of the periodic scheduling strategy based on the cache space size of the transmission server of the information transmission network when the transmission pressure of the information transmission network is reduced to a controllable pressure level, and obtain the corresponding maximum value of the network cumulative pressure index of the information transmission network, and reduce the scheduling period of the periodic scheduling strategy in step S3 to the maximum stable scheduling period; Transmission network security monitoring module: used to set the transmission network monitoring layer, monitor the information transmission network through Monte Carlo simulation, and calculate the network cumulative pressure index, and compare the monitored network cumulative pressure index with the maximum value of the network cumulative pressure index of the information transmission network. If the monitored network cumulative pressure index is greater than or equal to the maximum value of the network cumulative pressure index of the information transmission network, return to step S4 and reset the maximum stable scheduling period of the periodic scheduling strategy.

8. A device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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