CN106658651A - Routing system and routing method for linear roadway wireless coverage system - Google Patents

Abstract

The invention relates to a routing system and a routing method for a linear roadway wireless coverage system, wherein the routing system comprises an address allocation server, a gateway, a mining linear WiFi cable, a base station, a power supply and an access terminal; the routing method comprises the following steps: the first base station receives the address allocation information and allocates an initial address; starting from the base station, only forwarding to a network port connected with a next-stage base station to search whether an unaccessed base station exists, traversing to the base station if the unaccessed base station exists, repeating the traversing method from the base station, and traversing to the base station without the next base station; while traversing, continuously allocating addresses to the base stations; when the address allocation is finished, returning traversal information to an address allocation server, and configuring a forwarding table of the base station; configuring the access terminal of the next stage according to the forwarding table of the base station; and when the base station receives the network data packet, forwarding the network information according to the target address of the network data packet and the forwarding table of the base station.

Description

A routing system and routing method for a linear roadway wireless coverage system

technical field

The invention belongs to the communication field, and in particular relates to a routing system and a routing method for a linear roadway wireless coverage system.

Background technique

For the specific environment of long-distance roadway wireless coverage in underground mines, for the IP addresses of the base station (ap) and other access terminals (sta), the information transmission mostly uses the fixed IP of the base station, and other terminals use DHCP (Dynamic Host Configuration Protocol, dynamic host configuration protocol) distribution method. When the ac (Wireless Access Point Controller) controller is used to assign IP addresses to these access terminals, it is necessary to manually assign these addresses, and it is difficult to maintain.

For the base station and the access terminal, the ip of the same number segment is often used for allocation. For these artificially allocated addresses, the store-and-forward table for information transfer is not optimized, and the store-and-forward space required for routing nodes is large. At the same time, it affects the speed of information transmission.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a routing system and a routing method for a linear roadway wireless coverage system.

The technical scheme adopted in the present invention is: a routing system for a linear roadway wireless coverage system includes an address assignment server, a gateway, a mine-used linear WiFi cable, a base station, a power supply, and an access terminal; the address assignment server passes through the The gateway is connected to the mine linear WiFi cable, the base station is connected to the mine linear WiFi cable, the power supply supplies power to the base station, and the access terminal performs WiFi communication with the base station; the gateway is used for Accessing a service network, the address allocation server allocates IP addresses to the base station and the access terminal through the gateway.

A routing method for a linear roadway wireless coverage system includes the following steps:

The first base station receives the address assignment information and assigns an initial address;

Starting from this base station, it only forwards to the network port connected to the next-level base station to find out whether there is a base station that has not been visited. If it exists, it traverses to this base station. a base station of a base station;

While traversing, continuously assign addresses to base stations;

When traversing to the end of the base station, the address allocation is completed, and the traversal information is returned to the address allocation server to configure the forwarding table of the base station;

According to the forwarding table of the base station, configure the access terminal of the next level;

When the base station receives the network data packet, it forwards the network information according to the destination address of the network data packet and the forwarding table of the base station.

Further, the configuration of the forwarding table of the base station specifically includes:

Set up a forwarding table for the base station assigned the address;

For a base station assigned an address, generate a broadcast containing its address, and send said broadcast to neighboring routing nodes whose address is higher than its own;

The base station that has received the broadcast forwards the broadcast to an adjacent base station with an address higher than its own address, and repeats the above operation of forwarding the broadcast until the broadcast reaches the last base station;

Each base station that has received the broadcast stores the address included in the broadcast in the forwarding table.

Further, each base station that receives the broadcast stores the address contained in the broadcast into the forwarding table, which specifically includes:

When receiving the broadcast generated by the adjacent base station, add a forwarding address parameter and the maximum address parameter corresponding to the forwarding address parameter in the forwarding table, and store the address contained in the broadcast as the forwarding address parameter and the corresponding maximum address parameter;

When a broadcast forwarded by an adjacent base station is received, the address included in the broadcast is stored as the maximum address parameter.

Further, the configuration of the next-level access terminal according to the forwarding table of the base station specifically includes:

The wireless transmission function is turned on by the first base station, and the first access terminal receives the address allocation information;

Starting from the first access terminal, adopt the depth-first algorithm to forward address allocation information, traverse all the access terminals under the first base station, and perform continuous address allocation to the access terminals;

After the previous base station completes the access terminal address allocation, the next base station turns on the wireless transmission function, and the address allocation server sends address allocation information to the first access terminal of this base station, starting from the first access terminal of this base station, The address allocation information is forwarded using the depth-first algorithm, and all access terminals under the base station are traversed, and continuous address allocation is performed on the access terminals.

Further, the addresses of the base station and the access terminal are not in the same number segment.

Further, when the initial address is the smallest address, increase the address assigned to the base station in the order of traversal; when the initial address is the largest address, decrease the address assigned to the base station in the order of traversal .

Further, configuring the forwarding table of the base station further includes: for the base station assigned the address, obtaining the address of the adjacent base station traversed before, and storing the address as an upload address parameter in the forwarding table.

Further, the forwarding of the network information according to the target address of the network data packet and the forwarding table of the base station also includes: if the data packet cannot be forwarded to the base station corresponding to the forwarding address parameter, then forwarding the data packet to the base station corresponding to the upload address parameter base station.

Further, the access terminal is a coal safety mobile phone.

Due to the adoption of the above technical solution, the beneficial effects of the present invention are: forwarding the address allocation information of the base station by using the breadth-first algorithm for the base station, traversing each base station; forwarding the address allocation information of the access terminal by using the depth-first algorithm for the access terminal, traversing a All access terminals under the base station; the present invention can automatically allocate IP addresses to the base station and access terminals, and allocate as many IP addresses as needed, thereby avoiding waste of IP addresses.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a structural block diagram of a linear roadway wireless coverage system composed of composite cables;

Fig. 2 is a structural block diagram of a routing system for a linear roadway wireless coverage system provided by an embodiment of the present invention;

Fig. 3 is a flow chart of a routing method for a linear roadway wireless coverage system provided by an embodiment of the present invention;

Fig. 4 is a structural block diagram of a routing system for a linear roadway wireless coverage system provided by another embodiment of the present invention.

In the figure, 1-address allocation server; 2-gateway; 3-mine linear WiFi cable; 4-base station; 5-power supply; 6-access terminal.

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

The routing method of the invention is mainly applied to a linear roadway wireless coverage system composed of composite cables. As shown in Figure 1, the linear roadway wireless coverage system composed of composite cables includes dispatching communication systems, gateways, single-mode optical fiber switches, dual-mode optical fiber switches, SIP servers, AC controllers, mine-used linear WiFi cables, base stations, power supplies and access terminals. Among them, the dispatching communication system is connected to the gateway through a network cable, the gateway is connected to a single-mode fiber optic switch through a network cable, and the single-mode fiber optic switch is connected to a dual-mode fiber optic switch through a network cable. Both the SIP server and the AC controller are connected to the dual-mode optical fiber switch through network cables. The dual-mode fiber optic switch is connected to the mine-used linear WiFi cable through optical fiber, the base station is connected to the mine-used linear WiFi cable, the power supply supplies power to the base station, and the access terminal communicates with the base station through WiFi.

As shown in Figure 2, the present invention provides a routing system for a linear roadway wireless coverage system, which includes an address assignment server 1, a gateway 2, a mine-used linear WiFi cable 3, a base station 4, a power supply 5 and an access terminal 6. Among them, the address allocation server 1 is connected to the mining linear WiFi cable 3 through the gateway 2, the base station 4 is connected to the mining linear WiFi cable 3, the power supply 5 supplies power to the base station 4, and the access terminal 6 performs WiFi communication with the base station 4. Among them, the gateway 2 is used to access the service network, and the address allocation server 1 adopts a function similar to hot-swapping to other systems to access other network systems, such as dispatching communication systems. The address allocation server 1 allocates IP addresses to the base station 4 via wired access and the access terminal 6 via wireless access through the gateway 2 .

As shown in Figure 3, the present invention also provides a routing method for a linear roadway wireless coverage system, which includes the following steps:

S1. The first base station 4 in the linear roadway wireless coverage system receives address allocation information and allocates an initial address.

S2. Starting from the base station 4, only forward to the network port connected to the next-level base station 4 to find out whether there is a base station 4 that has not been visited. If there is, traverse to the base station 4, and repeat the traversal from the base station 4 method, traversing until there is no base station 4 of the next base station 4; while traversing, continuously assign addresses to the base station 4.

S3. When the address allocation is completed, the traversal information is returned to the address allocation server to configure the forwarding table of the base station 4, which specifically includes:

Set up a forwarding table for the base station 4 assigned the address;

For the base station 4 assigned an address, generate a broadcast containing its address, and send said broadcast to an adjacent routing node whose address is higher than its own;

The base station 4 that has received the broadcast forwards the broadcast to an adjacent base station 4 whose address is higher than its own address, and repeatedly performs the above-mentioned operation of forwarding the broadcast until the broadcast reaches the last base station 4;

Each base station 4 that has received the broadcast stores the address contained in the broadcast into the forwarding table, which specifically includes:

When receiving the broadcast generated by the adjacent base station 4, add a forwarding address parameter and the maximum address parameter corresponding to the forwarding address parameter respectively in the forwarding table, and store the address contained in the broadcast as the forwarding address parameter and the corresponding maximum address parameter. address parameter;

When the broadcast forwarded by the adjacent base station 4 is received, the address included in the broadcast is stored as the maximum address parameter. Therefore, the base station 4 configures a forwarding address parameter for each adjacent base station 4, and sets a maximum address parameter for each forwarding address parameter, that is, sets an address range. Wherein, the address range may represent only one address, or may represent several consecutive addresses, but only store two address parameters at most. Therefore, in the actual wireless coverage system, the storage space can be greatly saved. To send the data packet to the base station 4 corresponding to an address in the address range, the data packet needs to be sent to the base station 4 corresponding to the forwarding address parameter. In actual operation, the base station 4 will forward the data packets whose destination address falls within a certain address range according to the forwarding address parameter.

S4. According to the forwarding table of the base station 4, configure the access terminal 6 of the next level, which specifically includes:

1) The first base station 4 activates the wireless transmission function, and the first access terminal 6 receives address assignment information.

2) Starting from the first access terminal 6, adopt the depth-first algorithm to forward address allocation information, traverse all the access terminals 6 under the first base station 4, and perform continuous address allocation to the access terminals 6.

3) After the previous base station 4 completes the address allocation of the access terminal 6, the next base station 4 turns on the wireless transmission function, and the address allocation server 1 sends address allocation information to the first access terminal 6 of the base station 4, and the address allocation information is transmitted from the base station 4 to the first access terminal 6 of the base station 4. Starting from the first access terminal 6, the address assignment information is forwarded using the depth-first algorithm, traversing all the access terminals 6 under the base station 4, and continuously assigning addresses to the access terminals 6.

S5. When the base station 4 receives the network data packet, it forwards the network information according to the target address of the network data packet and the forwarding table of the base station 4, which specifically includes:

When the base station 4 receives the data packet, obtain the target address;

Comparing the target address with the forwarding address parameter and the maximum address parameter, when it is judged that the target address is not less than a forwarding address parameter and not greater than the maximum address parameter corresponding to the forwarding address parameter, forwarding the data packet to the forwarding address parameter Corresponding base station 4.

Further, the addresses of the base station 4 and the access terminal 6 are not in the same number segment.

In the above step S1, the initial address allocated to the first base station 4 may be the smallest possible address. In the above step S2, according to the order of traversal, the base stations 4 are assigned addresses in increments. In the above step S1, the initial address allocated to the first base station 4 may be the maximum possible address. In the above step S2, according to the order of traversal, the addresses assigned to the base stations 4 are reduced.

In the above step S3, configure the forwarding table of the base station 4, which further includes: for the base station 4 to which the address is allocated, obtain the address of the adjacent base station 4 traversed before, and store the address as an upload address parameter in the forwarding table.

The above operations actually obtain the address of the neighboring base station 4 with the smaller address among the neighboring base stations 4 of a base station 4, and use the obtained address as an upload address parameter stored in the forwarding table. The function of the upload address parameter is that when the target address obtained by the base station 4 is not in any interval formed by the forwarding address parameter and the maximum address parameter corresponding to the forwarding address parameter, the data packet is forwarded to the corresponding upload address parameter base station 4.

In the above step S5, the forwarding of the network information according to the destination address of the network data packet and the forwarding table of the base station 4 further includes: if the data packet cannot be forwarded to the base station 4 corresponding to the forwarding address parameter, then forwarding the data packet to the base station 4 Upload the base station 4 corresponding to the address parameter.

As shown in FIG. 4 , in order to facilitate the understanding of the routing method used in the linear roadway wireless coverage system of the present invention, an example is given below.

An initial address 192.168.1.2 is assigned to the first base station 4 .

The first base station receives the address assignment information and assigns an initial address;

Starting from this base station, it only forwards to the network port connected to the next-level base station to find out whether there is a base station that has not been visited. If it exists, it traverses to this base station. a base station of a base station;

While traversing, continuously assign addresses to base stations;

When traversing to the end of the base station, the address allocation is completed, and the traversal information is returned to the address allocation server to configure the forwarding table of the base station;

According to the forwarding table of the base station, configure the access terminal of the next level;

Starting from the first base station 4, it only forwards to the network port connected to the next-level base station to find out whether there is a base station that has not been visited and forwards the address assignment information received by the first base station 4, traversing the first and second base stations 4.

While traversing, consecutive address assignments are performed to the first and second base station 4 . The address 192.168.1.2 is assigned to the first base station 4, and the address 192.168.1.3 is assigned to the second base station 4.

When traversing to the end of the base station, the address allocation is completed, and the traversal information is returned to the address allocation server to traverse the information, and the forwarding table of the base station 4 is configured;

According to the forwarding table, configure the access terminal 6 of the next level, which specifically includes:

1) The first base station 4 activates the wireless transmission function, and the first access terminal receives address allocation information.

2) Starting from the first access terminal, adopting the depth-first algorithm to forward the address assignment information, traversing the first and second access terminals 6 under the first base station 4, and performing continuous processing on the first and second access terminals 6 address assignment. The address 172.16.0.2 is assigned to the first access terminal and the address 172.16.0.3 is assigned to the second access terminal 6 .

3) After the first base station 4 completes address allocation to the first and second access terminals 6, the second base station 4 turns on the wireless transmission function, and the address allocation server 1 sends the third access terminal of the second base station 4 6. Sending address assignment information, starting from the third access terminal 6 of the second base station 4, forwarding the address assignment information using the depth-first algorithm, traversing the third and fourth access terminals 6 under the second base station 4, and The third and fourth access terminals 6 are assigned consecutive addresses. The third access terminal 6 is assigned the address 172.16.0.4, and the fourth access terminal 6 is assigned the address 172.16.0.5.

After the address allocation is completed, the forwarding tables of the first and second base stations 4 are configured. When the first and second base stations 4 receive the network data packet, they forward the network information according to the destination address of the network data packet and the forwarding table of the first and second base station 4 .

The routing method of the present invention assigns IP addresses to 30 base stations 4 on a six-kilometer roadway covered by the wireless coverage system in the linear roadway and access terminals 6 such as mobile coal safety mobile phones. At the same time, the routing method of the present invention can also optimize the forwarding routing table, and provide a communication speed guarantee for the subsequent wireless coverage system to have functions such as video and positioning.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a routing system for a linear roadway wireless coverage system, characterized in that it includes an address assignment server, a gateway, a mine-used linear WiFi cable, a base station, a power supply and an access terminal; the address assignment server passes through the The gateway is connected to the mine linear WiFi cable, the base station is connected to the mine linear WiFi cable, the power supply supplies power to the base station, and the access terminal and the base station perform WiFi communication; the gateway is used to connect access service network, and the address allocation server allocates IP addresses to the base station and the access terminal through the gateway. 2. A routing method for a linear roadway wireless coverage system, comprising the following steps: The first base station receives the address assignment information and assigns an initial address; Starting from this base station, it only forwards to the network port connected to the next-level base station to find out whether there is a base station that has not been visited. If it exists, it traverses to this base station. A base station of a base station; while traversing, continuously assign addresses to the base stations; When the address allocation is completed, return the traversal information to the address allocation server to configure the forwarding table of the base station; According to the forwarding table of the base station, configure the access terminal of the next level; When the base station receives the network data packet, it forwards the network information according to the destination address of the network data packet and the forwarding table of the base station. 3. a kind of routing method that is used for linear roadway wireless coverage system as claimed in claim 2, is characterized in that, the forwarding table of described configuration base station, it specifically comprises: Set up a forwarding table for the base station assigned the address; For a base station assigned an address, generate a broadcast containing its address, and send said broadcast to neighboring routing nodes whose address is higher than its own; The base station that has received the broadcast forwards the broadcast to an adjacent base station with an address higher than its own address, and repeats the above operation of forwarding the broadcast until the broadcast reaches the last base station; Each base station that has received the broadcast stores the address included in the broadcast in the forwarding table. 4. A kind of routing method that is used for linear roadway wireless coverage system as claimed in claim 3, is characterized in that, each base station that described receiving broadcast stores the address contained in the broadcast into the forwarding table, which specifically includes : When receiving the broadcast generated by the adjacent base station, add a forwarding address parameter and the maximum address parameter corresponding to the forwarding address parameter in the forwarding table, and store the address contained in the broadcast as the forwarding address parameter and the corresponding maximum address parameter; When a broadcast forwarded by an adjacent base station is received, the address included in the broadcast is stored as the maximum address parameter. 5. A kind of routing method that is used for the linear roadway wireless coverage system as claimed in claim 2, is characterized in that, described according to the forwarding table of base station, configures the access terminal of next level, and it specifically comprises: The wireless transmission function is turned on by the first base station, and the first access terminal receives the address allocation information; Starting from the first access terminal, adopt the depth-first algorithm to forward address allocation information, traverse all the access terminals under the first base station, and perform continuous address allocation to the access terminals; After the previous base station completes the access terminal address allocation, the next base station turns on the wireless transmission function, and the address allocation server sends address allocation information to the first access terminal of this base station, starting from the first access terminal of this base station, The address allocation information is forwarded using the depth-first algorithm, and all access terminals under the base station are traversed, and continuous address allocation is performed on the access terminals. 6. A routing method for a linear roadway wireless coverage system according to claim 2, wherein the addresses of the base station and the access terminal are not in the same number segment. 7. a kind of routing method that is used for linear roadway wireless coverage system as claimed in claim 2, is characterized in that, when described initial address is minimum address, according to the order of traversal, increase distribution address to described base station; When the initial address is the largest address, according to the order of traversal, reduce the addresses allocated to the base stations. 8. A routing method for a linear roadway wireless coverage system as claimed in claim 2, wherein said configuration of the forwarding table of the base station further comprises: obtaining the previously traversed neighbors for the base station assigned the address The address of the base station is stored as an upload address parameter in the forwarding table. 9. A kind of routing method that is used for linear roadway wireless coverage system as claimed in claim 8, is characterized in that, described forwarding network information according to the target address of network data packet and the forwarding table of base station, it also comprises: If can't The data packet is forwarded to the base station corresponding to the forwarding address parameter, and the data packet is forwarded to the base station corresponding to the upload address parameter. 10. A routing method for a linear roadway wireless coverage system according to claim 2, wherein the access terminal is a coal safety mobile phone.