CN210724835U

CN210724835U - Ultra-large mining height fully-mechanized coal mining face communication system based on wireless mesh network

Info

Publication number: CN210724835U
Application number: CN201922155865.6U
Authority: CN
Inventors: 赵光瑞; 党景锋; 原志明; 刘俊锋; 张军; 黄林; 张晓波; 刘庚; 王鹏; 周展
Original assignee: Shenhua Shendong Coal Group Co Ltd; Xian Coal Mining Machinery Co Ltd
Current assignee: Shenhua Shendong Coal Group Co Ltd; Xian Coal Mining Machinery Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-06-09
Anticipated expiration: 2029-12-04

Abstract

The utility model provides a communication system of a fully mechanized mining face with an ultra-large mining height based on a wireless MESH network, wherein a first MESH switch is arranged on a body of a coal mining machine, receives and forwards the working information of the coal mining machine sent by a coal mining machine controller; the second MESH switches comprise a plurality of second MESH switches, each second MESH switch is in communication connection with the controller of the hydraulic support, and the second MESH switches receive and forward the working information of the hydraulic support sent by the controller of the hydraulic support; the third MESH switch is arranged in the roadway, and the distance between the third MESH switch and the entrance of the ultra-large mining height fully-mechanized coal mining face is smaller than a set distance; the data forwarded by the first MESH switch and/or the second MESH switch is received and forwarded to an upper computer located in an underground monitoring center. The utility model discloses an above technical scheme has high-speed, reliable data transmission effect.

Description

Ultra-large mining height fully-mechanized coal mining face communication system based on wireless mesh network

Technical Field

The utility model relates to an automatic exploitation technical field of coal specifically, relates to a super large mining height combines to adopt working face communication system based on wireless mesh network.

Background

The mining height range of the super-large mining height coal mining machine applied to the super-large mining height working face is 5.6-8.8 m, the super-large mining height coal mining machine has the functions of memory cutting, automatic height adjustment, three-dimensional positioning, working face navigation, remote monitoring and the like, is suitable for mining areas with relatively stable coal beds, large coal hardness and rich extra-thick coal bed reserves, and has obvious effects of improving the mining efficiency and resource recovery rate of super-large coal mines.

With the development of intelligent and green coal mining, underground coal mine communication transmission, particularly high-speed and reliable data transmission of a working face of a coal mining machine, is an urgent problem to be solved. Due to the severe working conditions of the working face, the underground communication cable is broken frequently due to coal mining or operation and the like, so that the communication system is broken. The traditional cable communication mode has large maintenance workload and difficult problem troubleshooting, and can not meet the requirement of remote communication transmission of the coal mining machine under severe working conditions.

In order to solve the problems, a WLAN communication network is established in the existing fully mechanized coal mining face, and intelligent coal mining equipment in the working face is all linked to the WLAN communication network. However, the traditional WLAN adopts point-to-point wireless communication, and in the working face with ultra-large mining height, the intelligent device is more and more complex compared with the common fully mechanized mining working face, and more intermediate nodes are needed, and once a certain intermediate node is damaged, the whole communication network is broken down, so that a high-speed, stable and easily-maintained remote communication system suitable for the working face with ultra-large mining height is urgently needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a aim at providing a super large adopts high to combine and adopts working face communication system based on wireless mesh to solve among the prior art WLAN communication network and appear a certain node trouble easily when the intermediate node is too much and lead to whole network system paralysed problem.

For this, the utility model provides a super large adopts high comprehensive working face communication system that adopts based on wireless MESH network, including first MESH switch, second MESH switch and third MESH switch:

the first MESH switch is arranged on a body of the coal mining machine, is in communication connection with a controller of the coal mining machine, receives coal mining machine working information sent by the controller of the coal mining machine and forwards the coal mining machine working information to the second MESH switch or the third MESH switch;

the second MESH switches comprise a plurality of second MESH switches, and different second MESH switches are arranged at the lower parts of top beams of different hydraulic supports; each second MESH switch is in communication connection with the controller of the hydraulic support, and the second MESH switch receives the hydraulic support working information sent by the hydraulic support controller and forwards the hydraulic support working information to the first MESH switch or the third MESH switch or other second MESH switches; the distance between any two second MESH switches is within a set distance range;

the third MESH switch is arranged in the roadway, and the distance between the third MESH switch and the entrance of the ultra-large mining height fully-mechanized coal mining face is smaller than a set distance; the data forwarded by the first MESH switch and/or the second MESH switch is received by the data forwarding device and forwarded to an upper computer located in an underground monitoring center.

Optionally, in the communication system for a fully mechanized mining face with an ultra-large mining height based on a wireless mesh network, the method further includes:

the fourth MESH switch is in communication connection with the third MESH switch and the upper computer; and the fourth MESH switch receives the data sent by the third MESH switch and forwards the data to the upper computer.

Optionally, in the communication system of the very large mining height fully mechanized mining face based on the wireless MESH network, the fourth MESH switch and the third MESH switch are connected through an RJ45 connector and a network cable;

and the fourth MESH switch is connected with the upper computer through an optical fiber connector and an optical fiber.

and the output end of the flameproof and intrinsically safe power supply is connected with the power supply end of the fourth MESH switch.

Optionally, in the communication system of the very large mining height fully mechanized mining face based on the wireless MESH network, the fourth MESH switch is an intrinsically safe MESH switch.

Optionally, in the communication system of the ultra-large mining height fully-mechanized coal mining face based on the wireless MESH network, the first MESH switch and the second MESH switch are connected in a wireless communication manner; the first MESH switch and the third MESH switch are in wireless communication connection; the second MESH switch and the third MESH switch are in wireless communication connection; and any two second MESH switches are connected by wireless communication.

Optionally, in the communication system of the ultra-large mining height fully-mechanized mining face based on the wireless MESH network, the first MESH switch, the second MESH switch and the third MESH switch are all explosion-proof and intrinsically safe MESH switches.

Optionally, in the communication system of the ultra-large mining height fully-mechanized mining face based on the wireless MESH network, the first MESH switch is connected with the controller of the coal mining machine through an RJ45 connector and a network cable;

the second MESH switch is connected with the controller of the hydraulic support machine through an RJ45 connector and a network cable.

Optionally, in the communication system of the fully mechanized mining face with an ultra-large mining height based on the wireless MESH network, a power supply end of the first MESH switch is electrically connected with a power supply output end of the coal mining machine;

and the power supply end of the second MESH exchanger is electrically connected with the power supply output end of the hydraulic support.

Optionally, in the communication system of the fully mechanized mining face with an ultra-large mining height based on the wireless MESH network, a distance between any two second MESH switches is 70 meters.

The utility model provides an above technical scheme compares with prior art, has following beneficial effect at least:

the utility model provides a height is adopted to super large based on wireless MESH network combines and adopts working face communication system, form wireless communication network through many MESH switches, the MESH switch is installed respectively on the coal-winning machine body, on the hydraulic support and in the tunnel, adopt to install the MESH switch on the coal-winning machine body and acquire coal-winning machine operating data, adopt the MESH switch of installing on the hydraulic support to acquire hydraulic support's operating data, all can realize two liang of communications between all MESH switches, consequently if one of them MESH switch breaks down, other MESH switches still can realize the retransmission of data, can not influence the stability of whole communication network. In addition, each MESH switch can be used as a node in the communication network to realize the forwarding of communication data, so that the data blocking condition caused when all MESH switches realize the data forwarding by a single node can be avoided, and the data transmission rate of the underground coal mine communication network is effectively improved. Based on the analysis, the utility model discloses an above technical scheme, simple structure provides high-speed reliable wireless mesh communication network, and communication speed is high, and it is convenient to install, and the network is maintained simply, in a flexible way, accords with the colliery safety requirement, ensures that colliery underground operation face is reliable and stable to long-range centralized control center coal-winning machine communication transmission, satisfies coal-winning machine video transmission, remote monitoring's demand.

Drawings

Fig. 1 is a schematic structural diagram of a communication system of a super-large mining height fully mechanized coal mining face based on a wireless mesh network according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a communication system of a super large mining height fully mechanized mining face based on a wireless mesh network according to another embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the following embodiments of the present invention may be combined according to actual needs as long as the solutions do not conflict with each other.

The embodiment provides a communication system of a very large mining height fully mechanized coal mining face based on a wireless MESH network, as shown in fig. 1, including a first MESH switch 101, a second MESH switch 102, and a third MESH switch 103. Wherein:

the first MESH switch 101 is disposed on a body of the coal mining machine 100, is in communication connection with a controller of the coal mining machine 101, receives coal mining machine working information sent by the controller of the coal mining machine, and forwards the coal mining machine working information to the second MESH switch 102 or the third MESH switch 103. In the process of executing the coal mining operation in the non-mining area 200, the controller of the coal mining machine can acquire the operation data of the coal mining machine, the data are acquired by the monitoring sensor arranged on the coal mining machine, and the scheme does not limit how to acquire the working information of the coal mining machine and can be realized by the existing scheme.

The second MESH switches 102 comprise a plurality of second MESH switches 102, and different second MESH switches 102 are arranged at the lower parts of top beams of different hydraulic supports; each second MESH switch 102 is in communication connection with the controller of the hydraulic support, and the second MESH switch 102 receives the hydraulic support operating information sent by the hydraulic support controller and forwards the hydraulic support operating information to the first MESH switch 101, the third MESH switch 103 or other second MESH switches 102; the distance between any two second MESH switches 102 is within a set distance range (taking a 300-meter working plane as an example, one second MESH switch 102 is installed every 70 meters). The working information of the hydraulic support can be acquired by various sensors arranged on the hydraulic support, and the detailed description is omitted in the scheme.

The third MESH switch 103 is arranged in the roadway, and the distance between the third MESH switch 103 and the entrance of the ultra-large mining height fully-mechanized coal mining face is smaller than a set distance; it receives the data forwarded by the first MESH switch 101 and/or the second MESH switch 102 and forwards it to the upper computer 104 located at the downhole monitoring center.

That is to say, in the coal mine underground ultra-large mining height working plane in the above scheme, any of the first MESH switch 101 and the second MESH switch 102 may receive and transmit data, that is, each MESH switch may be used as a node in a communication network to implement forwarding of communication data, so that a data blocking situation occurring when all MESH switches implement data forwarding by means of a single node may be avoided, and a data transmission rate of the coal mine underground communication network may be effectively improved.

The wireless MESH network is a multi-hop network, any wireless device node can be used as an AP, and each node in the network can transmit and receive signals. Each point may communicate with a plurality of nodes. In a conventional wireless network, if several devices access the network at the same time, communication congestion may occur, and in a MESH network, the devices may be connected through different nodes without causing system performance degradation. The MESH network provides a larger redundancy mechanism and a communication load balancing function, and can reduce the mutual interference of ring users using the wireless network and greatly improve the channel utilization efficiency. The MESH network transmits data through a plurality of short hops to obtain higher network bandwidth, is not only suitable for transmitting common data messages, but also can transmit high-definition video signals. Based on the analysis, the utility model discloses an above technical scheme, simple structure provides high-speed reliable wireless mesh communication network, and communication speed is high, and it is convenient to install, and the network is maintained simply, in a flexible way, accords with the colliery safety requirement, ensures that colliery underground operation face is reliable and stable to long-range centralized control center coal-winning machine communication transmission, satisfies coal-winning machine video transmission, remote monitoring's demand. Further, as shown in fig. 2, the communication system of the ultra-large mining height fully-mechanized coal mining face based on the wireless MESH network in the above scheme further includes a fourth MESH switch 105, which is in communication connection with the third MESH switch 103 and the upper computer 104; the fourth MESH switch 105 receives the data sent by the third MESH switch 103 and then forwards the data to the upper computer 104. The fourth MESH switch 105 can avoid the influence of an excessively long transmission distance between the third MESH switch 103 and the upper computer 104 on signal distortion.

Preferably, the first MESH switch 101 and the second MESH switch 102 are connected in wireless communication; the first MESH switch 101 and the third MESH switch 103 are connected by wireless communication; the second MESH switch 102 and the third MESH switch 103 are connected by wireless communication; any two of the second MESH switches 102 are connected by wireless communication. The fourth MESH switch 105 is connected to the third MESH switch 103 via RJ45 connectors and network cables; the fourth MESH switch 105 is connected with the upper computer 104 through an optical fiber connector and an optical fiber. Wherein the first MESH switch 101 is connected with a controller of the shearer through an RJ45 connector and a network cable; the second MESH switch 102 is connected to the controller of the hydraulic mount machine via RJ45 connectors and cables. The MESH switch acquires the working information of the coal mining machine and the hydraulic support through the RJ45 communication network, then transmits the working information through the wireless network, and finally transmits the data to the upper computer through the RJ45 communication network and the optical fiber communication mode, so that the working information of the coal mining machine 100 and the hydraulic support can be seamlessly butted to a limited network from the wireless network, and the data transmission is more accurate and reliable.

In addition, in the above scheme, the power supply end of the first MESH switch 101 is electrically connected to the power supply output end of the coal mining machine 100; the power supply end of the second MESH switch 102 is electrically connected to the power output end of the hydraulic mount. That is, the first MESH switch 101 is powered by a 127V power source of the shearer body. The second MESH switch 102 is powered by a 127V power supply derived from the working face hydraulic support. As shown in fig. 2, the system further includes an explosion-proof and intrinsically safe power supply 106, an output end of the explosion-proof and intrinsically safe power supply 106 is connected with a power supply end of the fourth MESH switch 105, and the fourth MESH switch 105 is powered by the explosion-proof and intrinsically safe power supply 106.

In addition, in order to meet the requirement of the mine for safety and explosion prevention, in the above scheme, the fourth MESH switch 105 is an intrinsically safe MESH switch, and the first MESH switch 101, the second MESH switch 102, and the third MESH switch 103 are all flameproof and intrinsically safe MESH switches.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a super large adopts high comprehensive working face communication system that adopts based on wireless MESH network which characterized in that, includes first MESH switch, second MESH switch and third MESH switch:

the first MESH switch is arranged on a body of the coal mining machine, is in communication connection with a controller of the coal mining machine, receives coal mining machine working information sent by the coal mining machine controller and forwards the coal mining machine working information to the second MESH switch or the third MESH switch;

the second MESH switches comprise a plurality of second MESH switches, and different second MESH switches are arranged at the lower parts of top beams of different hydraulic supports; each second MESH switch is in communication connection with a controller of the hydraulic support, receives hydraulic support working information sent by the controller of the hydraulic support and forwards the hydraulic support working information to the first MESH switch or the third MESH switch or different second MESH switches; the distance between any two second MESH switches is within a set distance range;

2. The wireless mesh network-based communication system for the ultra-large mining height fully mechanized coal mining face according to claim 1, further comprising:

3. The communication system of the ultra-large mining height fully mechanized coal mining face based on the wireless mesh network of claim 2, wherein:

the fourth MESH switch is connected to the third MESH switch via an RJ45 connector and a network cable;

4. The wireless mesh network-based communication system for the ultra-large mining height fully mechanized coal mining face according to claim 3, further comprising:

5. The communication system of the ultra-large mining height fully mechanized coal mining face based on the wireless mesh network of claim 4, wherein:

the fourth MESH switch is an intrinsically safe MESH switch.

6. The communication system of the ultra-large mining height fully mechanized coal mining face based on the wireless mesh network according to any one of claims 1 to 5, characterized in that:

the first MESH switch and the second MESH switch are in wireless communication connection; the first MESH switch and the third MESH switch are in wireless communication connection; the second MESH switch and the third MESH switch are in wireless communication connection; and any two second MESH switches are connected by wireless communication.

7. The communication system of the ultra-large mining height fully mechanized coal mining face based on the wireless mesh network of claim 6, wherein:

the first MESH switch, the second MESH switch and the third MESH switch are all flameproof and intrinsically safe MESH switches.

8. The wireless mesh network-based communication system for the ultra-large mining height fully mechanized coal mining face of claim 7, wherein:

the first MESH switch is connected with a controller of the coal mining machine through an RJ45 connector and a network cable;

9. The wireless mesh network-based communication system for the ultra-large mining height fully mechanized coal mining face of claim 8, wherein:

the power supply end of the first MESH switch is electrically connected with the power supply output end of the coal mining machine;

10. The wireless mesh network-based communication system for the ultra-large mining height fully mechanized coal mining face according to claim 9, wherein:

the distance between any two second MESH switches is 70 meters.