CN212935937U

CN212935937U - Subway multimedia communication system based on wireless MESH network

Info

Publication number: CN212935937U
Application number: CN202021886777.XU
Authority: CN
Inventors: 李文峰; 甄梓越; 黄峰; 耶元
Original assignee: XI'AN MOUNT ZHONG NAN INFORMATION TECHNOLOGY Ltd; Xi'an Wujiu Information Technology Co ltd; Xian University of Science and Technology
Current assignee: XI'AN MOUNT ZHONG NAN INFORMATION TECHNOLOGY Ltd; Xi'an Wujiu Information Technology Co ltd; Xian University of Science and Technology
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-04-09
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a subway multimedia communication system based on wireless MESH network, include: the system comprises a backbone network architecture, a network management system and a network management system, wherein the backbone network architecture comprises a plurality of wireless MESH routers which are arranged in a subway and are arranged at equal intervals; wherein, in the communication range, all wireless MESH routers are connected; outside the communication range, the wireless MESH router transmits communication connection through other wireless MESH routers in the communication range to form a backbone network; the backbone network is connected with the internet to form a multi-hop wireless network. A client architecture, comprising: the handheld interphone, the fixed/mobile video monitoring terminal and the mobile terminal respectively comprise a wireless MESH module, and the wireless MESH modules form a wireless network, are mutually networked and are networked with a multi-hop wireless network. The subway multimedia communication system based on the wireless MESH network solves the problems of difficult network deployment, inflexible structure, unstable network and the like.

Description

Subway multimedia communication system based on wireless MESH network

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of subway multimedia communication, especially, belong to a subway multimedia communication system based on wireless MESH network.

[ background of the invention ]

In recent years, the urban scale of China is gradually increased, urban rail transit is rapidly developed, and subways are used as main components of urban traffic, so that great support help is provided for local economic development and urban construction. Although the subway provides great convenience for the traffic of our daily life, the subway is generally built under the ground, so that the comfort of passengers is improved and the coverage rate and the stability of wireless signals are guaranteed in order to provide a good network environment no matter in consideration of emergency.

Because subway engineering is generally built underground, and is narrow and extremely long, and spatial structure is comparatively special, consequently its wireless communication system's coverage installation also has different with mounting methods such as general scenic spot or shopping mall, has difficult deployment, unstable problem. If wired communication links such as cables, optical cables, etc. are used for communication, the signals cannot be covered completely, and the communication system is complex to deploy if a critical situation is met.

[ Utility model ] content

The utility model aims at providing a subway multimedia communication system based on wireless MESH network solves the network and deploys the difficulty, the inflexible and network unstability scheduling problem of structure.

The utility model adopts the following technical scheme: a subway multimedia communication system based on wireless MESH network includes: the system comprises a backbone network architecture, a network management system and a network management system, wherein the backbone network architecture comprises a plurality of wireless MESH routers which are arranged in a subway and are arranged at equal intervals; wherein, in the communication range, all wireless MESH routers are connected; outside the communication range, the wireless MESH router transmits communication connection through other wireless MESH routers in the communication range to form a backbone network; the backbone network is connected with the internet to form a multi-hop wireless network. A client architecture, comprising: the handheld interphone, the fixed/mobile video monitoring terminal and the mobile terminal respectively comprise a wireless MESH module, and the wireless MESH modules form a wireless network, are mutually networked and are networked with a multi-hop wireless network.

Further, the fixed/mobile video monitoring system also comprises a monitoring module which is used for collecting and transmitting the video data of the monitored area.

Further, the fixed/mobile video surveillance selects a ball machine or a gun machine.

Further, the mobile terminal selects a mobile phone or a notebook computer and is used for being carried by a worker.

The utility model has the advantages that: 1. supporting Ad-hoc network, and having self-organizing and self-healing capability. 2, it is a wireless multi-hop network, but also a backbone network structure composed of wireless MESH routers; the wireless MESH router moves less and takes the main responsibility of routing, thus greatly reducing the pressure of MESH clients and other non-MESH terminals; better support is provided for the mobility of the terminal.

[ description of the drawings ]

Fig. 1 is a schematic block diagram of a subway multimedia communication system based on a wireless MESH network;

fig. 2 is a system overall architecture of a subway multimedia communication system based on a wireless MESH network;

wherein: 1. the internet; 2. a wireless MESH router; 3. a handheld interphone; 4. fixed/mobile video surveillance; 5. a mobile terminal; 6. a wireless MESH module; 7, IP intercom module; 8. a video monitoring module; 10. backbone network architecture; 11. and (5) constructing a client.

[ detailed description ] embodiments

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

A subway multimedia communication system based on wireless MESH network, as shown in fig. 1 and 2, comprising: the backbone network architecture 10 comprises a plurality of wireless MESH routers 2, wherein the wireless MESH routers 2 are arranged under a subway and are arranged at equal intervals; it is also possible to place a line thereof at equal distances. For other wireless MESH routers 2 in the communication range, the wireless MESH router 2 is in communication connection with each other wireless MESH router 2; for other wireless MESH routers 2 outside the communication range, the wireless MESH routers 2 transmit communication connection through other wireless MESH routers 2 in the communication range to form a backbone network; the backbone network is connected to the internet 1 to form a multi-hop wireless network. All devices in the entire area that can receive the wireless MESH signal can be given access to the internet.

Because the terrain under the subway is complex, and the network coverage is not as simple as that on the common ground, the building of the upper-layer backbone network framework 10 is not enough, and the network coverage of the upper-layer wireless MESH router can generate dead angles due to some complex terrains. However, if the wireless MESH router completely close to the upper layer ensures full coverage, the cost is very high, so if the mobile terminal and the monitoring device of the lower layer are reasonably equipped, the cost can be reduced, and the network coverage is improved.

Specifically, by constructing the client framework 11, the client framework 11 includes: the handheld interphone 3, the fixed/mobile video monitor 4 and the mobile terminal 5 are all provided with a wireless MESH module, and the handheld interphone 3, the fixed/mobile video monitor 4 and the mobile terminal 5 are all provided with a wireless MESH module which forms a wireless network and is connected with each other and a multi-hop wireless network. The client forms a network that provides routing and configuration functions, supporting the user's terminal applications. Since the nodes forming the network do not need to have gateway or relay functions, the MESH router is not needed, and the MESH structure of the individual client can be regarded as a wireless Ad-hoc network formed by the clients, and the framework is formed by interconnection of devices and does not have access to the internet.

Since the wireless MESH network is developed from a wireless Ad-hoc network and is a multi-hop, centerless and Ad-hoc wireless network, the whole network can not need fixed infrastructure, each node is mobile, and can dynamically maintain contact with other nodes. The devices in the client architecture 11 are mainly devices required for subway operation.

When the equipment in the fixed/mobile video monitoring 4 is selected as the fixed video monitoring device, a ball machine or a gun machine can be selected. Because its position is fixed, we can directly use it as the placement point of the wireless MESH router 2, which can reduce the cost to the maximum extent and has no influence on the function. The fixed/mobile video surveillance 4 itself comprises a surveillance module 8 for surveillance acquisition of video data of the area to be monitored.

The mobile video monitoring is developed for overcoming the defects of fixed-point monitoring immobility and blind areas, and can support self operation without power or network. The ball machine consists of a tripod, a ball machine and a storage battery, wherein the ball machine is erected on the tripod.

The selected handheld interphone 3 is provided with the wireless MESH module 6 and the IP interphone 7, the over-the-horizon transmission can be easily realized by the automatic relay characteristic, and signals can automatically select the optimal path to continuously jump from one node to another node and finally reach a target node without direct line of sight. IP talkback 7 is to satisfy the contact between the staff. The mobile terminal 5 can be a mobile phone of a worker or a notebook computer for work, and is provided with a wireless MESH module.

The utility model discloses a hybrid architecture is backbone network framework 10 and client architecture 11's combination, and the MESH customer end can realize the visit to the network through wireless MESH router, also can constitute a MESH network with other MESH customer ends simultaneously. The backbone network composed of the wireless MESH routers 2 provides the client with connection to other network structures, such as the internet, WLAN, WiMax, cellular and sensor networks, etc., and in the wireless MESH network structure, the routing capability of the client can be utilized to enhance the connectivity and expand the network coverage for the wireless MESH network. Under the hybrid architecture, the following characteristics are provided: 1. supporting Ad-hoc network, and having self-organizing and self-healing capability. 2. The wireless multi-hop network is a wireless multi-hop network, and meanwhile, a backbone network architecture consisting of wireless MESH routers is also provided. 3. The wireless MESH router moves less and takes the main responsibility of routing, thus greatly reducing the pressure of MESH clients and other non-MESH terminals; 4. better support is provided for the mobility of the terminal. 5. The wireless MESH router is compatible with a variety of different networks, whether wireless or wired, and thus provides access to a variety of networks. 6. The lower layer client architecture is combined with the upper layer backbone network architecture, so that larger network coverage and internet access are realized.

Claims

1. A subway multimedia communication system based on wireless MESH network is characterized by comprising:

the backbone network architecture (10) comprises a plurality of wireless MESH routers (2), wherein the wireless MESH routers (2) are arranged in a subway and are arranged at equal intervals; wherein, in the communication range, each wireless MESH router (2) is connected; outside the communication range, the wireless MESH router (2) transmits communication connection through other wireless MESH routers (2) in the communication range to form a backbone network; the backbone network is connected with the Internet (1) to form a multi-hop wireless network;

a client architecture (11) comprising: the system comprises a handheld interphone (3), a fixed/mobile video monitor (4) and a mobile terminal (5), wherein the handheld interphone (3), the fixed/mobile video monitor (4) and the mobile terminal (5) respectively comprise a wireless MESH module (6), and the wireless MESH modules (6) form a wireless network, are mutually networked and are all networked with the multi-hop wireless network.

2. A subway multimedia communication system based on wireless MESH network as claimed in claim 1, wherein said fixed/mobile video monitor (4) further comprises a monitoring module for collecting video data of monitored area and transmitting.

3. A subway multimedia communication system based on wireless MESH network as claimed in claim 2, wherein said fixed/mobile video monitor (4) is selected from ball machine or gun machine.

4. A subway multimedia communication system based on wireless MESH network as claimed in claim 1, wherein said mobile terminal (5) is selected from handset or notebook computer and is used for carrying by staff.