CN115955403A - Mining network slicing method and system - Google Patents
Mining network slicing method and system Download PDFInfo
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- CN115955403A CN115955403A CN202211557887.5A CN202211557887A CN115955403A CN 115955403 A CN115955403 A CN 115955403A CN 202211557887 A CN202211557887 A CN 202211557887A CN 115955403 A CN115955403 A CN 115955403A
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Abstract
The application provides a mining network slicing method and a mining network slicing system, wherein the method comprises the following steps: segmenting the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network; determining a total bandwidth of the mine transmission network; determining the number of service system terminals accessed to a mine transmission network and the bandwidth index of each terminal transmission service; determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network; the service system accessed to the mining transmission network comprises a plurality of terminals. According to the technical scheme, the mining network slices are mapped based on the generic classification and the specific requirements to realize channel isolation, the transmission performance of high-priority services is effectively guaranteed, and the acceleration of the intelligent construction of a coal mine is facilitated.
Description
Technical Field
The application relates to the field of network slicing, in particular to a mining network slicing method and system.
Background
With the advance of intelligent construction of coal mines, the types of underground services are more and more, and an industrial ring network based on the traditional Ethernet technology cannot meet the service requirements.
Traffic between services with different security levels in the traditional Ethernet technology is transmitted through an interconnection interface, a technical scheme of resource allocation according to needs and effective channel isolation is not needed, the traditional Ethernet uses a Best Effort (Best Effort) forwarding strategy, and the problem of differentiation needs of service transmission quality (Qualityof service. Therefore, an industrial ring network using a conventional ethernet does not have the capability of allocating resources according to service requirements, and cannot effectively ensure the transmission performance of high-priority services.
Disclosure of Invention
The application provides a mining network slicing method and a mining network slicing system, which are used for at least solving the technical problems that the prior art does not have the capacity of distributing mining network resources according to service requirements and cannot effectively guarantee the transmission performance of high-priority services.
An embodiment of a first aspect of the present application provides a mining network slicing method, where the method includes:
segmenting the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network;
determining a total bandwidth of the mine transmission network;
determining the number of service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service;
determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the service system accessed to the mining transmission network comprises a plurality of terminals.
Preferably, the slice types include: low-delay service slices, large-bandwidth service slices, industrial ring network service slices and reserved service slices;
or, at least one of a low-latency service slice, a large-bandwidth service slice, an industrial ring network service slice and a reserved service slice, and a high-priority service slice, a high-reliability service slice, a high-cooperativity service slice and a remote control service slice.
Further, the service system accessing the mining transmission network includes at least one of the following:
the mining monitoring system comprises a mining safety monitoring system, a mining video monitoring system, a mining WIFI communication system, a mining 4G communication system, a mining 5G communication system, a mining positioning system, a mining broadcasting system, a mining scheduling command system, a mining honeycomb direct connection communication system, a mining 5G camera system, a mining hydrological monitoring system, a mining pressure monitoring system, a mining automatic air door system, a mining main conveyor belt system and a mining power supply system.
Further, the segmenting the mining transmission network according to the preset slice type further includes, before obtaining each slice corresponding to the mining transmission network:
when the service system accessed to the mining transmission network comprises at least one of the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system, the mining honeycomb direct connection communication system and the mining 5G camera system, the time delay upper limit value and the bandwidth requirement value of each transmission service corresponding to the service system accessed to the mining transmission network are obtained.
Further, the slicing the mining transmission network according to the preset slice type to obtain each slice corresponding to the mining transmission network includes:
mapping transmission services, of which the time delay upper limit value of transmission services in the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system and the mining cellular direct connection communication system is smaller than or equal to a preset time delay threshold value and the bandwidth requirement value is smaller than a preset bandwidth threshold value, to the low-time-delay service slice;
mapping transmission services, which have bandwidth requirement values of transmission services of the mining video monitoring system, the mining 5G camera system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system and the mining cellular direct connection communication system which are greater than or equal to a preset bandwidth threshold value and are not mapped to low-delay service slices, to the large-bandwidth service slices;
mapping transmission services which are not mapped to low-delay service slices in the mining safety monitoring system, the mining hydrologic monitoring system, the mining pressure monitoring system, the mining automatic air door system, the mining main conveyor belt system and the mining power supply system to the industrial ring network service slices;
and mapping the evolution service in the mining transmission network to the reserved service slice.
Further, the slicing the mining transmission network according to the preset slice type to obtain each slice corresponding to the mining transmission network further includes:
and correspondingly mapping the preset service in the mining transmission network to the high-priority service slice, the high-reliability service slice, the high-cooperativity service slice or the remote control service slice.
Further, the determining the bandwidth of each slice according to the number of the service system terminals accessing the mining transmission network, the bandwidth index of the transmission service of each terminal, and the total bandwidth of the mining transmission network includes:
determining the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
determining the bandwidth of the reserved service slice based on the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
respectively determining the bandwidth of each slice except the reserved service slice in the mining transmission network according to the bandwidth of the reserved service slice, the terminal data corresponding to each slice, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network is determined based on the weight of the service system corresponding to the other slices except the reserved service slice being set to 1 and according to the weight and the bandwidth index of each terminal transmission service.
Further, the determining the bandwidth of the reserved service slice based on the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices in the mining transmission network except the bandwidth of the reserved service slice includes:
when B' is less than or equal to (1-n) B, the bandwidth of the reserved service slice is equal to the product of the preset bandwidth proportion of the reserved service slice and the total bandwidth of the mining transmission network;
when B' > (1-n) B, the bandwidth of the reserved service slice is equal to the difference value between the total bandwidth of the mining transmission network and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network;
b' is the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network, n is the preset proportion of the bandwidth of the reserved service slice, and B is the total bandwidth of the mining transmission network.
Further, the determining the bandwidth of each slice in the mining transmission network except the reserved service slice according to the bandwidth of the reserved service slice, the terminal data corresponding to each slice, the bandwidth index of each terminal transmission service, and the total bandwidth of the mining transmission network respectively includes:
when B' is less than or equal to (1-n) B, the formula is utilized
Determining the bandwidth of each slice except the reserved service slice;
when B' > (1-n) B, the formula is used
Determining the bandwidth of the slices other than reserved service slices, wherein>
Wherein, B i For the bandwidth of the ith slice, except for the reserved traffic slice, B q，w Transmitting the bandwidth index of the service for the W terminal in the Q service system, wherein Q is the total number of the service systems in the slice, W is the total number of the terminals in one service system, B q Mean value of bandwidth index p for each terminal transmission service in the qth service system q The weight corresponding to the qth service system;
the bandwidth index mean value is determined based on the bandwidth index of the transmission service of each terminal.
Further, the method further comprises: dividing a reserved bandwidth in the bandwidth of the low-delay service slice according to the reliability index; when the reliability index of part or all of transmission services in the low-delay service slice is greater than or equal to a reliability index threshold value, in the bandwidth of the low-delay service slice, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, dividing the reserved bandwidth in the low-delay service slice;
dividing reserved bandwidth in the bandwidth of the large-bandwidth service slice according to the reliability index; when the reliability index of part or all of the transmission services in the large-bandwidth service slice is greater than or equal to the reliability index threshold value, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, the reserved bandwidth is divided in the large-bandwidth service slice.
Further, the calculation formula of the reserved bandwidth of the low latency service slice is as follows:
R e ＝k e *B y *d e
in the formula, R e Reserving bandwidth, k, for low latency traffic slices e Weight corresponding to reserved bandwidth in low-latency traffic slice, B y Mean value of bandwidth index, d, of each terminal transmission service for low-delay service slicing e The number of terminals transmitting the service, which is a low-delay service slice;
the calculation formula of the reserved bandwidth of the large bandwidth service slice is as follows:
R s ＝k s *B u *d s
in the formula, R s Reserved bandwidth, k, for large bandwidth traffic slices s Weight corresponding to reserved bandwidth in large bandwidth service slice, B u Mean value of bandwidth index, d, of services transmitted for each terminal of a slice of large bandwidth services s The number of terminals transmitting traffic sliced for large bandwidth traffic.
Further, the method further comprises: and carrying out slice division on the mining transmission network on the basis of the sub-time slots on a data link layer of the mining transmission network.
An embodiment of a second aspect of the present application provides a mining network slicing system, where the system includes:
the slicing module is used for slicing the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network;
a first determining module for determining a total bandwidth of the mining transmission network;
the second determining module is used for determining the number of service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service;
the third determining module is used for determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the service system accessed to the mining transmission network comprises a plurality of terminals.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
the application provides a mining network slicing method and a mining network slicing system, wherein the method comprises the following steps: segmenting the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network; determining a total bandwidth of the mining transmission network; determining the number of service system terminals accessed to a mine transmission network and the bandwidth index of each terminal transmission service; determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network; the service system accessed to the mining transmission network comprises a plurality of terminals. According to the technical scheme, the mining network slices are mapped based on the generic classification and the specific requirements to realize channel isolation, the transmission performance of high-priority services is effectively guaranteed, and the acceleration of the intelligent construction of a coal mine is facilitated.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a mining network slicing method according to an embodiment of the present application;
fig. 2 is a network architecture diagram of a mining transport network provided according to an embodiment of the present application;
FIG. 3 is a schematic diagram of data transmission of a data link layer slice provided according to an embodiment of the present application;
fig. 4 is a first block diagram of a mining network slicing system according to an embodiment of the present application;
fig. 5 is a second block diagram of a mining network slicing system according to an embodiment of the present application;
FIG. 6 is a block diagram of a third determination module provided in accordance with one embodiment of the present application;
fig. 7 is a third block diagram of a mining network slicing system according to an embodiment of the present application;
fig. 8 is a fourth structural diagram of a mining network slicing system according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The application provides a mining network slicing method and a mining network slicing system, wherein the method comprises the following steps: segmenting the mining transmission network according to a preset slice type to obtain slices corresponding to the mining transmission network; determining a total bandwidth of the mining transmission network; determining the number of service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service; determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network; the service system accessed to the mining transmission network comprises a plurality of terminals. According to the technical scheme, the mining network slices are mapped based on the generic classification and the specific requirements to realize channel isolation, the transmission performance of high-priority services is effectively guaranteed, and the acceleration of the intelligent construction of a coal mine is facilitated.
A mining network slicing method and system according to embodiments of the present application are described below with reference to the accompanying drawings.
Example one
Fig. 1 is a flowchart of a mining network slicing method according to an embodiment of the present application, and as shown in fig. 1, the method includes:
step 1: segmenting the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network;
in an embodiment of the present disclosure, the slice types include: low-delay service slices, large-bandwidth service slices, industrial ring network service slices and reserved service slices;
or, at least one of a low-latency service slice, a large-bandwidth service slice, an industrial ring network service slice and a reserved service slice, and a high-priority service slice, a high-reliability service slice, a high-interoperability service slice and a remote control service slice.
The slice name is not limited to the above expression, and slices having the same name, function, and index may be, for example, a regular service slice or a general priority service slice in the protection scope.
Further, the service system accessing the mining transmission network includes at least one of the following:
the mining monitoring system comprises a mining safety monitoring system, a mining video monitoring system, a mining WIFI communication system, a mining 4G communication system, a mining 5G communication system, a mining positioning system, a mining broadcasting system, a mining scheduling command system, a mining honeycomb direct connection communication system, a mining 5G camera system, a mining hydrological monitoring system, a mining pressure monitoring system, a mining automatic air door system, a mining main conveyor belt system and a mining power supply system.
It should be noted that, before step 1, the method further includes:
when the service system accessed to the mining transmission network comprises at least one of the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system, the mining honeycomb direct connection communication system and the mining 5G camera system, the time delay upper limit value and the bandwidth requirement value of each transmission service corresponding to the service system accessed to the mining transmission network are obtained.
In an embodiment of the present disclosure, the step 1 specifically includes:
mapping transmission services, of which the time delay upper limit value of transmission services in the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system and the mining cellular direct connection communication system is smaller than or equal to a preset time delay threshold value and the bandwidth requirement value is smaller than a preset bandwidth threshold value, to the low-time-delay service slice;
for example, a 5QI (5G QoS Indicator) of the mining transmission network, that is, an indication of a group of data streams between a tagging terminal of the 5G network and a core network is defined before a transmission service, where the indication includes a priority, a packet delay or a packet error rate, or a QCI (QoS Class Identifier) scale value, a delay threshold L, and a bandwidth threshold Bt, and when a slice is divided, the transmission service in which a delay requirement upper limit of the transmission service in the mining security monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system, and the mining cellular direct connection communication system is smaller than or equal to the delay threshold L and a bandwidth requirement value is smaller than the preset bandwidth threshold Bt is mapped to the low-delay service slice.
It should be noted that, the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system, and the mining cellular direct connection communication system all bear services related to coal mine safety production, emergency command, and the like, so that the low-delay slice only maps the low-delay service slice to the services borne by the systems.
Mapping transmission services which have bandwidth requirement values of transmission services in the mining video monitoring system, the mining 5G camera system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system and the mining honeycomb direct connection communication system which are more than or equal to a preset bandwidth threshold value and are not mapped to low-delay service slices to the large-bandwidth service slices;
in an example, the transmission services which have the bandwidth requirement value of the transmission services in the mining video monitoring system, the mining 5G camera system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system and the mining cellular direct connection communication system greater than or equal to a preset bandwidth threshold value Bt and are not mapped to the low-latency service slice are mapped to the large-bandwidth service slice.
Mapping transmission services which are not mapped to low-delay service slices in the mining safety monitoring system, the mining hydrologic monitoring system, the mining pressure monitoring system, the mining automatic air door system, the mining main conveyor belt system and the mining power supply system to the industrial ring network service slices;
and mapping the evolution service in the mining transmission network to the reserved service slice.
It should be noted that the reserved service slice is a resource reserved for facilitating service type expansion, so that when a system expands capacity, configuration of an existing network is not affected.
Each slice is in end-to-end communication during data transmission, and the midway switch does not process the data.
Further, the step 1 further includes:
and correspondingly mapping the preset service in the mining transmission network to the high-priority service slice, the high-reliability service slice, the high-cooperativity service slice or the remote control service slice.
Wherein the preset service comprises: specific high priority traffic, specific high reliability traffic, specific high interoperability and specific high remote control class traffic.
And 2, step: determining a total bandwidth of the mining transmission network;
it should be noted that the mining transmission network according to this embodiment supports a deployment scheme of network slices, where the mining transmission network includes at least one ground core switch and at least one downhole ring network switch, and a BGbps optical fiber interface is used between the ground core switch and the downhole ring network switch to form a ring network. The type of the switch can be KJJ83 (D), the switch is a mining explosion-proof and intrinsic safety type network interface, and B is the total bandwidth which is 100Gbps or 50Gbps at most.
For example, as shown in fig. 2, a networking architecture of a mining transmission network including one ground core switch and four downhole ring network switches is shown, and the mining transmission network slicing scheme according to this embodiment is deployed in the mining transmission network.
And step 3: determining the number of service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service;
and 4, step 4: determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
in an embodiment of the present disclosure, step 4 specifically includes:
step 4-1: determining the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network is determined based on the weight of the service system corresponding to the other slices except the reserved service slice being set to 1 and according to the weight and the bandwidth index of each terminal transmission service.
Step 4-2: determining the bandwidth of the reserved service slice based on the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
further, the step 4-2 specifically includes:
when B' is less than or equal to (1-n) B, the bandwidth of the reserved service slice is equal to the product of the preset bandwidth proportion of the reserved service slice and the total bandwidth of the mining transmission network;
when B' > (1-n) B, the bandwidth of the reserved service slice is equal to the difference value between the total bandwidth of the mining transmission network and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network;
and B' is the total bandwidth of other slices except the bandwidth of the reserved service slice in the preset mining transmission network, n =0.25, n is the preset proportion of the bandwidth of the reserved service slice, and B is the total bandwidth of the mining transmission network.
As an example, the bandwidth of the reserved traffic slice is determined as follows:
the bandwidth of the reserved service slice is directly determined according to the preset proportion n and the preset results of other slices, and the determination method comprises the following steps:
the weights of the slices except the reserved service slice are all equal to 1, and the calculated total bandwidth of the slices except the reserved service slice is recorded as B';
when B' is less than or equal to (1-n) B, the bandwidth of the reserved slice is n B; otherwise, the bandwidth of the reserved service slice is B-B', and the total bandwidth of the other slices is (1-n) × B, where n =0.25.
Step 4-3, respectively determining the bandwidth of each slice in the mine transmission network except the reserved service slice according to the bandwidth of the reserved service slice, the terminal data corresponding to each slice, the bandwidth index of each terminal transmission service and the total bandwidth of the mine transmission network;
when B' is less than or equal to (1-n) B, the formula is utilized
Determining the bandwidth of each slice except the reserved service slice;
when B' > (1-n) BUsing a formula
Determining the bandwidth of the slices other than reserved service slices, wherein>
/>
Wherein, B i For the bandwidth of the ith slice, except for the reserved traffic slice, B q，w Transmitting the bandwidth index of the service for the W terminal in the Q service system, wherein Q is the total number of the service systems in the slice, W is the total number of the terminals in one service system, and B q Mean value of bandwidth index, p, for each terminal transmission service in the q-th service system q The weight corresponding to the qth service system;
the bandwidth index average value is determined based on the bandwidth index of the transmission service of each terminal.
In an example, determining the bandwidth of each slice other than the reserved service slice includes:
the weights of the slices except the reserved service slice are all equal to 1, and the calculated total bandwidth of the slices except the reserved service slice is recorded as B';
and when B 'is less than or equal to (1-n) B, the total bandwidth of the slices except the reserved service slice is B', and the bandwidth weights of the other slices are all 1.
When B' > (1-n) × B, the bandwidth of the slice except the reserved service slice is calculated according to the following method:
wherein the bandwidth of the ith slice is B i Then B is i The following requirements should be satisfied: (1-n) × B = ∑ Bi, B i Is determined by the traffic carried.
Further, the bandwidth B required by the service i The calculation method comprises the following steps: b is i ＝p*Bw i *n i Wherein n is i For the number of all terminals constituting the service, bw i For the average bandwidth of each terminal, P is the bandwidth weight corresponding to the service system, and P is determined according to the priority and importance of the service transmitted by the mining systemIf the weight is larger, the priority of the representative service is higher, and the weight is larger for the service with higher real-time requirement; the more bandwidth occupied traffic, the less weight.
It should be noted that, according to the correlation between the type of the frequency band used by the system as authorized or unauthorized, the service type and the safety production, the control safety, and the like, the weight is divided into Q levels, for example, Q =4, see table 1 for common service types and weight values:
TABLE 1
In the embodiment of the present disclosure, the method further includes:
dividing a reserved bandwidth in the bandwidth of the low-delay service slice according to the reliability index; when the reliability index of part or all of transmission services in the low-delay service slice is greater than or equal to a reliability index threshold value, in the bandwidth of the low-delay service slice, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, dividing the reserved bandwidth in the low-delay service slice;
dividing reserved bandwidth in the bandwidth of the large-bandwidth service slice according to the reliability index; when the reliability index of part or all of the transmission services in the large-bandwidth service slice is greater than or equal to the reliability index threshold value, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, the reserved bandwidth is divided in the large-bandwidth service slice.
It should be noted that, for a low-delay service slice and a large-bandwidth service slice, a reserved bandwidth corresponding to a high-reliability transmission service of the slice needs to be implicitly determined additionally;
the method comprises the steps of additionally reserving resources aiming at the high-reliability transmission service requirement, carrying out weight division on the additionally reserved resources according to the reliability grade, and configuring a certain reserved bandwidth for the service with the high-reliability transmission requirement to carry out high-reliability redundant transmission.
Further, the calculation formula of the reserved bandwidth of the low latency service slice is as follows:
R e ＝k e *B y *d e
in the formula, R e Reserving bandwidth, k, for low latency traffic slices e Weight corresponding to reserved bandwidth in low-latency traffic slice, B y Mean value of bandwidth index, d, of each terminal transmission service for low-delay service slicing e The number of terminals transmitting services sliced for low-latency services;
the calculation formula of the reserved bandwidth of the large bandwidth service slice is as follows:
R s ＝k s *B u *d s
in the formula, R s Reserved bandwidth, k, for large bandwidth traffic slices s Weight corresponding to reserved bandwidth in large bandwidth service slice, B u Mean value of bandwidth index, d, of services transmitted for each terminal sliced for large bandwidth services s The number of terminals transmitting traffic sliced for large bandwidth traffic.
In the embodiment of the present disclosure, the method further includes:
and carrying out slice division on the mining transmission network on the basis of the sub-time slots on a data link layer of the mining transmission network.
It should be noted that, as shown in fig. 3, the slicing scheme no longer uses ethernet frame transmission in the data link, but uses a scheduling scheme based on time slots, and each service is transmitted from terminal a to terminal B through switch a, switch B, and switch C through fixed time slots.
In the figure, each time slot has a size of 5Gbps, each time slot may be subdivided into 5 sub-time slots, each sub-time slot has a size of 1Gbps, and each slice may be bound with 1 to N consecutive sub-time slots to form a channel with a bandwidth of N × 1 Gbps.
Furthermore, due to the scheduling scheme based on the time slot, the data of each service is forwarded by using the sub-time slot with fixed number, the mapping between the data and the time slot is only carried out at the sending end and the receiving end of the data, and other exchangers in the loop only forward and do not process the data, thereby realizing the hard isolation between the services.
In summary, the mining network slicing method provided in this embodiment can isolate each service data, so that the network architecture becomes simpler, and the security performance of the network can be increased; meanwhile, the slicing function is naturally adaptive to the slicing function of the 5G core network, the transmission requirement of the 5G RAN is met, the deployment difficulty of the 5G network is reduced, and the acceleration of the intelligent construction of a coal mine is facilitated.
Example two
Fig. 4 is a structural diagram of a mining network slicing system according to an embodiment of the present application, and as shown in fig. 4, the system includes:
the slicing module 100 is configured to slice the mining transmission network according to a preset slice type to obtain slices corresponding to the mining transmission network;
a first determining module 200, configured to determine a total bandwidth of the mining transmission network;
a second determining module 300, configured to determine the number of service system terminals accessing the mine transmission network and bandwidth indexes of service transmission of each terminal;
a third determining module 400, configured to determine the bandwidth of each slice according to the number of service system terminals accessing the mining transmission network, the bandwidth index of each terminal transmission service, and the total bandwidth of the mining transmission network;
the service system accessed to the mining transmission network comprises a plurality of terminals.
In an embodiment of the present disclosure, the slice types include: low-delay service slices, large-bandwidth service slices, industrial ring network service slices and reserved service slices;
or, at least one of a low-latency service slice, a large-bandwidth service slice, an industrial ring network service slice and a reserved service slice, and a high-priority service slice, a high-reliability service slice, a high-cooperativity service slice and a remote control service slice.
Further, the service system accessing the mining transmission network includes at least one of the following:
the mining monitoring system comprises a mining safety monitoring system, a mining video monitoring system, a mining WIFI communication system, a mining 4G communication system, a mining 5G communication system, a mining positioning system, a mining broadcasting system, a mining scheduling command system, a mining honeycomb direct connection communication system, a mining 5G camera system, a mining hydrological monitoring system, a mining pressure monitoring system, a mining automatic air door system, a mining main conveyor belt system and a mining power supply system.
In this disclosed embodiment, as shown in fig. 5, the mining network slicing system further includes: a second obtaining module 500;
the second obtaining module 500 is configured to obtain, when the service system accessing the mine transmission network includes at least one of the mine safety monitoring system, the mine video monitoring system, the mine WIFI communication system, the mine 4G communication system, the mine 5G communication system, the mine positioning system, the mine broadcasting system, the mine scheduling command system, the mine cellular direct connection communication system, and the mine 5G camera system, a time delay upper limit value and a bandwidth requirement value of each transmission service corresponding to the service system accessing the mine transmission network.
In an embodiment of the present disclosure, the splitting module 100 is specifically configured to:
mapping transmission services, of which the time delay upper limit value of transmission services in the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system and the mining cellular direct connection communication system is smaller than or equal to a preset time delay threshold value and the bandwidth requirement value is smaller than a preset bandwidth threshold value, to the low-time-delay service slice;
mapping transmission services, which have bandwidth requirement values of transmission services of the mining video monitoring system, the mining 5G camera system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system and the mining cellular direct connection communication system which are greater than or equal to a preset bandwidth threshold value and are not mapped to low-delay service slices, to the large-bandwidth service slices;
mapping transmission services which are not mapped to low-delay service slices in the mining safety monitoring system, the mining hydrologic monitoring system, the mining pressure monitoring system, the mining automatic air door system, the mining main conveyor belt system and the mining power supply system to the industrial ring network service slices;
and mapping the evolution service in the mining transmission network to the reserved service slice.
Further, the slicing module 100 is further configured to: and correspondingly mapping the preset service in the mining transmission network to the high-priority service slice, the high-reliability service slice, the high-cooperativity service slice or the remote control service slice.
In the embodiment of the present disclosure, as shown in fig. 6, the third determining module 400 includes:
a first determining unit 401, configured to determine a preset bandwidth proportion of a reserved service slice and a preset total bandwidth of other slices in the mining transmission network except for the bandwidth of the reserved service slice;
a second determining unit 402, configured to determine the bandwidth of the reserved service slice based on the preset bandwidth proportion of the reserved service slice and a preset total bandwidth of other slices in the mining transmission network except the bandwidth of the reserved service slice;
a third determining unit 403, configured to determine, according to the bandwidth of the reserved service slice, terminal data corresponding to each slice, a bandwidth index of each terminal transmission service, and a total bandwidth of the mining transmission network, bandwidths of other slices in the mining transmission network except for the reserved service slice;
the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network is determined based on the weight of the service system corresponding to the other slices except the reserved service slice being set to 1 and according to the weight and the bandwidth index of each terminal transmission service.
Further, the second determining unit 402 is specifically configured to:
when B' is less than or equal to (1-n) B, the bandwidth of the reserved service slice is equal to the product of the preset proportion of the bandwidth of the reserved service slice and the total bandwidth of the mining transmission network;
when B' > (1-n) B, the bandwidth of the reserved service slice is equal to the difference value between the total bandwidth of the mining transmission network and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network;
b' is the total bandwidth of other slices except the bandwidth of the reserved service slice in the preset mining transmission network, n is the bandwidth preset proportion of the reserved service slice, and B is the total bandwidth of the mining transmission network.
Further, the third determining unit 403 is specifically configured to:
when B' is less than or equal to (1-n) B, the formula is utilized
Determining the bandwidth of each slice except the reserved service slice;
when B' > (1-n) B, the formula is used
Determining the bandwidth of the slices other than the reserved service slice, wherein>
Wherein, B i For the bandwidth of the ith slice, except for the reserved traffic slice, B q，w Transmitting the bandwidth index of the service for the W terminal in the Q service system, wherein Q is the total number of the service systems in the slice, W is the total number of the terminals in one service system, B q Mean value of bandwidth index, p, for each terminal transmission service in the q-th service system q The weight corresponding to the qth service system;
the bandwidth index mean value is determined based on the bandwidth index of the transmission service of each terminal.
Further, as shown in fig. 7, the mining network slicing system further includes: a reservation module 600;
the reservation module 600 is specifically configured to:
dividing a reserved bandwidth in the bandwidth of the low-delay service slice according to the reliability index; when the reliability index of part or all of transmission services in the low-delay service slice is greater than or equal to a reliability index threshold value, in the bandwidth of the low-delay service slice, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, dividing the reserved bandwidth in the low-delay service slice;
dividing reserved bandwidth in the bandwidth of the large bandwidth service slice according to the reliability index; when the reliability index of part or all of the transmission services in the large-bandwidth service slice is greater than or equal to the reliability index threshold value, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, the reserved bandwidth is divided in the large-bandwidth service slice.
The calculation formula of the reserved bandwidth of the low-latency service slice is as follows:
R e ＝k e *B y *d e
in the formula, R e Reserved bandwidth, k, for low latency traffic slices e Weight corresponding to reserved bandwidth in low-latency traffic slice, B y Mean value of bandwidth index, d, of each terminal transmission service for low-delay service slicing e The number of terminals transmitting the service, which is a low-delay service slice;
the calculation formula of the reserved bandwidth of the large bandwidth service slice is as follows:
R s ＝k s *B u *d s
in the formula, R s Reserved bandwidth, k, for large bandwidth traffic slices s For large bandwidth industryWeight corresponding to reserved bandwidth in service slice, B u Mean value of bandwidth index, d, of services transmitted for each terminal of a slice of large bandwidth services s The number of terminals transmitting traffic sliced for large bandwidth traffic.
Further, as shown in fig. 8, the mining network slicing system further includes: a data link layer partitioning module 700;
the data link layer partitioning module 700 is configured to perform slice partitioning on the mining transmission network based on sub-slots at a data link layer of the mining transmission network.
In summary, the mining network slice system provided in this embodiment maps the mining network slices based on the generic classification and the specific requirements to realize channel isolation, thereby effectively ensuring the transmission performance of the high-priority service, and further contributing to accelerating the intelligent construction of the coal mine.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (13)
1. A mining network slicing method, characterized in that the method comprises:
segmenting the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network;
determining a total bandwidth of the mine transmission network;
determining the number of service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service;
determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the service system accessed to the mining transmission network comprises a plurality of terminals.
2. The method of claim 1, wherein the slice type comprises: low-delay service slices, large-bandwidth service slices, industrial ring network service slices and reserved service slices;
or, at least one of a low-latency service slice, a large-bandwidth service slice, an industrial ring network service slice and a reserved service slice, and a high-priority service slice, a high-reliability service slice, a high-cooperativity service slice and a remote control service slice.
3. The method of claim 2, wherein the service system accessing the mining transport network comprises at least one of:
the mining monitoring system comprises a mining safety monitoring system, a mining video monitoring system, a mining WIFI communication system, a mining 4G communication system, a mining 5G communication system, a mining positioning system, a mining broadcasting system, a mining scheduling command system, a mining honeycomb direct connection communication system, a mining 5G camera system, a mining hydrological monitoring system, a mining pressure monitoring system, a mining automatic air door system, a mining main conveyor belt system and a mining power supply system.
4. The method of claim 3, wherein the segmenting the mining transmission network according to the preset slice type further comprises, before obtaining each slice corresponding to the mining transmission network:
when the service system accessed to the mining transmission network comprises at least one of the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system, the mining honeycomb direct connection communication system and the mining 5G camera system, the time delay upper limit value and the bandwidth requirement value of each transmission service corresponding to the service system accessed to the mining transmission network are obtained.
5. The method of claim 4, wherein the segmenting the mining transmission network according to the preset slice type to obtain slices corresponding to the mining transmission network comprises:
mapping transmission services of which the time delay upper limit value of the transmission service in the mining safety monitoring system, the mining video monitoring system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system, the mining positioning system, the mining broadcasting system, the mining scheduling command system and the mining honeycomb direct connection communication system is smaller than or equal to a preset time delay threshold value and the bandwidth requirement value is smaller than a preset bandwidth threshold value to the low-time-delay service slice;
mapping transmission services which have bandwidth requirement values of transmission services in the mining video monitoring system, the mining 5G camera system, the mining WIFI communication system, the mining 4G communication system, the mining 5G communication system and the mining honeycomb direct connection communication system which are more than or equal to a preset bandwidth threshold value and are not mapped to low-delay service slices to the large-bandwidth service slices;
mapping transmission services which are not mapped to low-delay service slices in the mining safety monitoring system, the mining hydrologic monitoring system, the mining pressure monitoring system, the mining automatic air door system, the mining main conveyor belt system and the mining power supply system to the industrial ring network service slices;
and mapping the evolution service in the mining transmission network to the reserved service slice.
6. The method of claim 4, wherein the segmenting the mining transmission network according to the preset slice type to obtain each slice corresponding to the mining transmission network further comprises:
and correspondingly mapping the preset service in the mining transmission network to the high-priority service slice, the high-reliability service slice, the high-cooperativity service slice or the remote control service slice.
7. The method of claim 2, wherein the determining the bandwidth of each slice according to the number of service system terminals accessing the mining transmission network, the bandwidth index of each terminal transmission service, and the total bandwidth of the mining transmission network comprises:
determining the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
determining the bandwidth of the reserved service slice based on the preset bandwidth proportion of the reserved service slice and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mine transmission network;
respectively determining the bandwidth of each slice except the reserved service slice in the mining transmission network according to the bandwidth of the reserved service slice, the terminal data corresponding to each slice, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network is determined based on the weight of the service system corresponding to the other slices except the reserved service slice being set to 1 and according to the weight and the bandwidth index of each terminal transmission service.
8. The method of claim 7, wherein the determining the bandwidth of the reserved traffic slice based on the preset proportion of the bandwidth of the reserved traffic slice and the preset total bandwidth of other slices in the mining transmission network except the bandwidth of the reserved traffic slice comprises:
when B' is less than or equal to (1-n) B, the bandwidth of the reserved service slice is equal to the product of the preset bandwidth proportion of the reserved service slice and the total bandwidth of the mining transmission network;
when B' > (1-n) B, the bandwidth of the reserved service slice is equal to the difference value between the total bandwidth of the mining transmission network and the preset total bandwidth of other slices except the bandwidth of the reserved service slice in the mining transmission network;
b' is the total bandwidth of other slices except the bandwidth of the reserved service slice in the preset mining transmission network, n is the bandwidth preset proportion of the reserved service slice, and B is the total bandwidth of the mining transmission network.
9. The method of claim 8, wherein the determining the bandwidth of each slice in the mining transmission network except the reserved service slice according to the bandwidth of the reserved service slice, the terminal data corresponding to each slice, the bandwidth index of each terminal transmission service, and the total bandwidth of the mining transmission network respectively comprises:
when B' is less than or equal to (1-n) B, the formula is utilized
DeterminingThe bandwidth of each slice except the reserved service slice;
when B' > (1-n) B, the formula is used
Determining the bandwidth of the slices other than the reserved service slice, wherein>
Wherein, B i For the bandwidth of the ith slice, except for the reserved traffic slice, B q，w Transmitting the bandwidth index of the service for the W terminal in the Q service system, wherein Q is the total number of the service systems in the slice, W is the total number of the terminals in one service system, and B q Mean value of bandwidth index, p, for each terminal transmission service in the q-th service system q The weight corresponding to the qth service system;
the bandwidth index mean value is determined based on the bandwidth index of the transmission service of each terminal.
10. The method of claim 7, wherein the method further comprises: dividing a reserved bandwidth in the bandwidth of the low-delay service slice according to the reliability index; when the reliability index of part or all of the transmission services in the low-delay service slice is greater than or equal to a reliability index threshold value, in the bandwidth of the low-delay service slice, for the transmission services of which the reliability index is greater than or equal to the reliability index threshold value, the reserved bandwidth is divided in the low-delay service slice;
dividing reserved bandwidth in the bandwidth of the large-bandwidth service slice according to the reliability index; when the reliability index of part or all of the transmission services in the large bandwidth service slice is greater than or equal to the reliability index threshold value, for the transmission services of which the reliability indexes are greater than or equal to the reliability index threshold value, the reserved bandwidth is divided in the large bandwidth service slice.
11. The method of claim 10, wherein the reserved bandwidth of the low latency traffic slice is calculated as follows:
R e ＝k e *B y *d e
in the formula, R e Reserving bandwidth, k, for low latency traffic slices e Weight corresponding to reserved bandwidth in low-latency traffic slice, B y Mean value of bandwidth index, d, of each terminal transmission service for low-delay service slicing e The number of terminals transmitting the service, which is a low-delay service slice;
the calculation formula of the reserved bandwidth of the large bandwidth service slice is as follows:
R s ＝k s *B u *d s
in the formula, R s Reserved bandwidth, k, for large bandwidth traffic slices s Weight corresponding to reserved bandwidth in large bandwidth service slice, B u Mean value of bandwidth index, d, of services transmitted for each terminal of a slice of large bandwidth services s The number of terminals transmitting traffic sliced for large bandwidth traffic.
12. The method of claim 1, wherein the method further comprises: and carrying out slice division on the mining transmission network on the basis of the sub-time slots on a data link layer of the mining transmission network.
13. A mining network slicing system, the system comprising:
the slicing module is used for slicing the mining transmission network according to a preset slice type to obtain each slice corresponding to the mining transmission network;
a first determining module for determining a total bandwidth of the mining transmission network;
the second determining module is used for determining the number of the service system terminals accessed to the mine transmission network and the bandwidth index of each terminal transmission service;
the third determining module is used for determining the bandwidth of each slice according to the number of service system terminals accessed to the mining transmission network, the bandwidth index of each terminal transmission service and the total bandwidth of the mining transmission network;
the service system accessed to the mining transmission network comprises a plurality of terminals.
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