CN111629382B - Wireless local area network system for underground power station - Google Patents
Wireless local area network system for underground power station Download PDFInfo
- Publication number
- CN111629382B CN111629382B CN202010535748.7A CN202010535748A CN111629382B CN 111629382 B CN111629382 B CN 111629382B CN 202010535748 A CN202010535748 A CN 202010535748A CN 111629382 B CN111629382 B CN 111629382B
- Authority
- CN
- China
- Prior art keywords
- network
- wireless
- network transmission
- transmission node
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/35—Utilities, e.g. electricity, gas or water
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Development Economics (AREA)
- Economics (AREA)
- General Business, Economics & Management (AREA)
- Computing Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A wireless local area network system for an underground utility, comprising: the network convergence gateway RP realizes wireless bidirectional intercommunication and interconnection with the ground wide area network; the system comprises a plurality of network transmission nodes NP, wherein each network transmission node NP realizes wireless bidirectional intercommunication and interconnection with a network convergence gateway RP, and wireless bidirectional intercommunication and interconnection are also realized between any two network transmission nodes NP; and each interface conversion access terminal TP is at least in wireless bidirectional intercommunication and interconnection with one network transmission node NP. The invention realizes a plug-and-play networking mode, saves a great amount of materials and labor construction cost, realizes the optimization of a signal transmission link, adopts a different-frequency mode to transmit signals, and effectively reduces the convergence rate of network transmission bandwidth.
Description
Technical Field
The invention relates to a wireless local area network system for an underground power station.
Background
The intelligent power grid, the video monitoring, the Internet of things, the intelligent wearable mobile patrol, the robot video and infrared imaging mobile patrol and a large amount of broadband multimedia information underground ground bidirectional communication are performed, the communication requirement of mobile broadband multimedia is provided for the communication network of an underground power station, and meanwhile, the special requirements of safe operation of the power station are also provided for the information safety, the arrangement convenience and rapidness, the robustness of a network structure and the system application limiting condition and the network management requirement of low radiation power.
The current Wireless Local Access Network (WLAN) is basically: the central exchange cellular distributed local area network and the wireless single-hop star-shaped wired AP access wireless local area network (for example, wiFi wireless local area network), not only have large investment, but also need to develop large-scale hole-punching wiring construction and point-distribution access AP in the built underground power station, need to implement complex network debugging, once one wired access AP point in the network fails, the wireless communication of a region is interrupted, once the network coverage area needs to be changed, wiring construction is needed, the network topology structure is difficult to change, and once one wired access AP point is accessed in multiple users, the communication congestion of the node is caused. In addition, a large number of wireless conversion access communication terminals are additionally arranged in the local area network access of broadband multimedia information of the existing video monitoring and internet of things sensor stock data information acquisition devices of a large number of underground power stations, and high-power wireless radio frequency electromagnetic radiation interference is prevented in some areas of the underground power stations.
Disclosure of Invention
The invention provides a wireless local area network system for an underground power station, which realizes a plug-and-play networking mode, saves a great amount of materials and labor construction cost, realizes the optimization of a signal transmission link, adopts a different-frequency mode to transmit signals, and effectively reduces the convergence rate of network transmission bandwidth.
In order to achieve the above object, the present invention provides a wireless lan system for an underground power station, comprising:
the network convergence gateway RP realizes wireless bidirectional intercommunication and interconnection with the ground wide area network;
the system comprises a plurality of network transmission nodes NP, wherein each network transmission node NP realizes wireless bidirectional intercommunication and interconnection with a network convergence gateway RP, and wireless bidirectional intercommunication and interconnection are also realized between any two network transmission nodes NP;
and each interface conversion access terminal TP is at least in wireless bidirectional intercommunication and interconnection with one network transmission node NP.
The communication among the network convergence gateway RP, the network transmission node NP and the interface conversion access terminal TP adopts 801.11 protocol.
The network convergence gateway RP realizes the intercommunication and interconnection of a wired mode and/or a wireless mode of a wireless local area network system for an underground power station and a ground wide area network through a wired communication interface and/or a wireless communication interface.
The network transmission node NP receives signals and transmits signals by adopting different frequency bands respectively.
The network transmission node NP receives signals sent by the interface conversion access terminal TP, and saves the data information carried in the signals with the strongest signal strength; the network transmission node NP receives signals sent by other network transmission nodes NP and stores the data information carried in the signal with the strongest signal strength.
The network transmission node NP sends the data information to the network convergence gateway RP or other network transmission nodes NP with the optimal bandwidth capacity.
The network transmission node NP directly takes electricity from a 220V power socket of an underground power station, so that plug and play is realized.
The interface conversion access terminal TP receives multimedia information data information of the underground power station through a wired communication interface and/or a wireless communication interface.
The communication interface at least comprises: RJ45 wired network port, RS232 interface, FR interface, bluetooth protocol photoelectric interface, FC/APC optical port.
The invention has the following advantages:
1. the network transmission node NP, the interface conversion access terminal TP and the network convergence gateway RP all have wireless mobile access capability conforming to 801.11 protocol.
2. The network transmission node NP judges the intensity of the double-channel carrier signal and the bandwidth capacity of the network node through the network function module, and realizes the optimization of the wireless local area network transmission route link of the underground power station. The network transmission node NP identifies the frequency of the received handshake transmission signal, and forwards the data carried by the received handshake transmission signal to the wireless local area network in an inter-frequency mode, so that an intelligent judgment mechanism of inter-frequency transceiving is realized, and the convergence rate of the network transmission bandwidth is effectively reduced.
3. The network transmission node NP can be increased and reduced at will to realize plug and play without using on-site network configuration debugging, the interface conversion access terminal TP and the network transmission node NP are directly connected through an interface, the network transmission node NP and the network convergence gateway RP are directly connected through an interface without interfering the normal operation of a network system, and the local area network saves a great deal of materials and labor construction cost compared with the traditional wireless access local area network because the local area network does not need on-site wiring construction.
4. The network convergence gateway RP is of a single configuration, has a multimedia information broadband transceiving bidirectional interconnection function between the underground local area network and the ground wide area network, realizes the interconnection of the underground local area network and the ground wide area network in a wired and/or wireless mode through a wired and/or wireless communication interface, and realizes the safe interconnection of the underground power station plug and play broadband multimedia local area network system and the wide area network in a virtual special network air interface safety protection mode.
Drawings
Fig. 1 is a schematic structural diagram of a wireless local area network system for an underground power station according to the present invention.
Detailed Description
The following describes a preferred embodiment of the present invention in detail with reference to fig. 1.
As shown in fig. 1, the present invention provides a wireless lan system for an underground power station, comprising:
the network convergence gateway RP realizes wireless bidirectional intercommunication and interconnection with the ground wide area network;
the system comprises a plurality of network transmission nodes NP, wherein each network transmission node NP realizes wireless bidirectional intercommunication and interconnection with a network convergence gateway RP, and wireless bidirectional intercommunication and interconnection are also realized between any two network transmission nodes NP;
and each interface conversion access terminal TP is at least in wireless bidirectional intercommunication and interconnection with one network transmission node NP.
The network convergence gateway RP, the network transmission node NP and the interface conversion access terminal TP all have wireless mobile access capability conforming to 801.11 protocol.
In one embodiment of the invention, the data information of the internet of things multimedia information outside the system such as video monitoring images, environmental temperature and humidity data, equipment state acousto-optic information and the like of the underground power station is connected to a network transmission node NP in a broadband multimedia local area network system of the underground power station through an interface conversion access terminal TP with a plurality of types of wired and wireless communication conversion interfaces and then through a wireless network transmission frequency band on the interface conversion access terminal TP; and, the network transmission node NP with dual-band intelligent frequency hopping function transparently transmits multimedia information data to the convergence direction of the broadband multimedia lan system of the underground power station (convergence direction refers to the direction of the network convergence gateway RP), that is, the network transmission node NP sends the multimedia information data to the wide area network, for example, the remote wide area network of the power company through the network convergence gateway RP.
In one embodiment of the present invention, the network convergence gateway RP is a system and an integrated device with transmission security protection for lan multimedia data information convergence, lan operation status management, lan-to-wired wide area private network conversion, lan-to-wireless wide area public network conversion. The network convergence gateway RP is a network convergence gateway with a multimedia information broadband receiving and transmitting bidirectional interconnection function between an underground local area network and a ground wide area network, realizes the interconnection of the underground local area network and the ground wide area network in a wired and/or wireless mode through a wired and/or wireless communication interface, and realizes the safety interconnection of a plug-and-play broadband multimedia local area network system of an underground power station and a wireless wide area public network in a safety protection mode of an air interface of a virtual special network.
In one embodiment of the present invention, the network convergence gateway RP is configured as a single unit, and includes a housing, a wired interface, a first antenna group, and a power cord. The housing is a box-like structure containing a lid. The wired interface and the first antenna group are disposed on the housing. The shell is also provided with an indicating lamp group for displaying the working state of the device, and the indicating lamp group comprises an operation indicating lamp A, a strip-type abnormal frequency receiving and transmitting indicating lamp B and a strip-type WIFI access state indicating lamp C.
The first antenna group comprises three antennas, two antennas are used for receiving and transmitting double-channel carrier data signals transmitted by the network, and the other antenna is used for accessing wireless mobile roaming signals. Optionally, the three antennas are glue stick antennas. In addition, the housing of the network convergence gateway RP is further connected to a second type antenna, which is also called a fourth antenna, and the fourth antenna is a magnetic spiral antenna.
In this embodiment, the wired interface mainly plays a role of converting and accessing external signals in a wired manner, and the wired interface includes an RJ45 wired network port and an FC/APC optical port. It should be noted that, in order to meet the access requirement of the private power communication network, the network convergence gateway RP has a high-bandwidth multi-type convergence forwarding interface, including, but not limited to, the RJ45 wired network port, the FC/APC optical port, and the like, so as to implement broadband transceiving interconnection of multimedia information between the local area network and the wired wide area private network.
The operation indicator lamp A adopts a red-blue double-color indicator lamp and is used for indicating the network access operation state of the network convergence gateway RP; if the red light is on, the network convergence gateway RP is electrified; if the blue light is on, the network convergence gateway RP is added with a network transmission link, and the network transmission link refers to a multimedia information data transmission link between two layers of structures of the network transmission node NP and the network convergence gateway RP.
The strip-type different-frequency receiving and transmitting indicator lamp B adopts a green strip-type indicator lamp and is used for displaying the different-frequency receiving and transmitting state of the network convergence gateway RP; if the lamp B is on, the network convergence gateway RP is in the different-frequency receiving and transmitting state, and the on-lamp length of the lamp bar represents the signal strength of the different-frequency receiving and transmitting state, so the present invention can also adjust the current position of the network convergence gateway RP according to the on-lamp length of the lamp bar to place the network convergence gateway RP in the optimal signal transmitting and receiving position.
The strip-type WIFI access state indicator lamp C adopts a yellow strip-type indicator lamp and is used for displaying the access state of wireless mobile signals of the network convergence gateway RP; if the light C is on, it represents that the network convergence gateway RP has wireless mobile signal access at this time, and the on length of the light bar represents the strength of the accessed wireless mobile signal.
The routing module, the wired interface module, the power module, the relay node module and the network management module are arranged in the shell.
In order to meet the safety requirement of power communication, the network convergence gateway RP is also embedded with a wireless public network broadband safety air interface routing module with a virtual private network function so as to realize the broadband multimedia information safety interconnection of the underground local area network with the ground monitoring center wireless wide area public network through the wireless public network safety. Specifically, the routing module is a VPN routing module, and the VPN routing module integrated in the network convergence gateway RP is a route embedded with a wireless virtual private network protocol, so that the air interface of the interconnected wide area network can be safely protected.
The wired interface module is used for managing interface data flowing through; the power module is connected with a power line and is used for supplying power to the network convergence gateway RP. The relay node module is used for playing a role in relaying and forwarding signals in the following network. The network management module has the supervision functions of the operation states, the data information access states and the like of network units such as an interface conversion access terminal TP, a network transmission node NP, a network convergence gateway RP and the like of the plug-and-play broadband multimedia local area network system of the underground power station, and can realize white list management of networking of the network units, flow monitoring of each network transmission node NP, state monitoring of WIFI mobile access and the like.
In one embodiment of the present invention, the glue stick antenna receives the multimedia information data from the network transmission node NP and transmits the multimedia information data to the relay node module, then manages the multimedia information data through the wired interface module, outputs the multimedia information data through the wired interface (such as an RJ45 wired network port and/or an FC/APC optical port), and finally transmits the multimedia information data to the wired wide area private network externally connected to the wired interface, for example, the wired interface is connected with the wide area network through an optical fiber or an electric wire in a wired manner, thereby realizing the intercommunication and interconnection of the underground local area network and the ground wide area network in a wired manner.
In another embodiment of the present invention, the glue stick antenna receives the multimedia information data from the network transmission node NP, transmits the multimedia information data to the relay node module for aggregation, and then transmits the multimedia information data to the spiral antenna through the VPN routing module, where the spiral antenna finally sends the received multimedia information data to the wireless wide area public network wirelessly connected with the spiral antenna, so as to implement wireless interconnection between the underground local area network and the ground wireless wide area public network. The plug-and-play broadband multimedia local area network system of the underground power station is realized by adopting the safety protection mode of the virtual private network air interface, and the safety intercommunication and interconnection with the wireless wide area public network can be realized. It should be noted that the present invention is not limited to the VPN routing module 104, but may be any other type of routing module as long as the local area network and the wireless wide area private network can be interconnected.
Optionally, the glue stick antenna receives the multimedia information data from the network transmission node NP and transmits the multimedia information data to the relay node module, and then the glue stick antenna is connected with a computer sequentially through the network management module, the wired interface module and the wired interface, and performs corresponding processing through the network management software on the starting device, so as to realize supervision on the running state, the data information access state and the like of each network unit of the plug-and-play broadband multimedia local area network system of the underground power station.
In one embodiment of the present invention, the network transmission node NP includes:
the antenna group module is used for receiving and transmitting a double-channel carrier signal transmitted by the wireless local area network and an access signal of wireless mobile roaming, so that signal transmission among all network transmission node devices NP, among the network transmission node devices NP and a network convergence gateway RP and among the network transmission node devices NP and an interface conversion access terminal TP in the wireless local area network system for the underground power station is realized;
the network function module is connected with the antenna group module and is used for comparing the strength of handshake transmission carrier signals in the double-channel carrier signals received by the antenna group module, storing multimedia data carried by the handshake transmission carrier signals with the strongest signal strength and sending the double-channel carrier signals to a network node unit with the optimal bandwidth capacity in the convergence direction of the peripheral network in a different frequency mode; the network node unit refers to a network transmission node device NP, a network convergence gateway RP and/or an interface conversion access terminal TP;
the state display module is respectively connected with the antenna group module and the network function module and is used for displaying the working state of the node device;
the power module is connected with the antenna group module, the network function module and the state display module and is used for providing power for the network transmission node device so that the node device can work normally.
The network transmission node NP also comprises a box body which is used for assembling the antenna group module, the network function module, the state display module and the power supply module into an integral module which is convenient to move. The antenna group module and the status display module are arranged on the box body, and the network function module and the power module are arranged in the box body. The box body has IP32 protection grade for preventing large particle dust from invading.
The antenna group module comprises a receiving antenna, a transmitting antenna and a wireless roaming antenna, wherein the receiving antenna is used for receiving a double-channel carrier signal sent by a network node unit at the upper level; the transmitting antenna is used for transmitting a double-channel carrier signal to a network node unit in the convergence direction of the peripheral network; the wireless roaming antenna is used for realizing wireless roaming of the double-channel carrier signal.
Specifically, the antenna group module adopts a microminiature antenna. The antenna group module adopts a rubber rod antenna and/or a magnetic antenna.
The network function module comprises:
the network transmission receiving module is connected with the receiving antenna of the antenna group module and is used for receiving handshake transmission carrier signals in the double-channel carrier signals sent by the upper-level network transmission node device NP;
the data calculation processing module is connected with the network transmission receiving module and is used for comparing the intensity of a plurality of handshake transmission carrier signals received by the network transmission receiving module and identifying the channel frequency range of the handshake transmission carrier signal with the strongest signal intensity, controlling the network transmission transmitting module to forward the data stored by the data storage module to the wireless local area network system in an inter-frequency mode and calculating the bandwidth capacity of the network transmission node device NP in the convergence direction of the peripheral network;
the data storage module is connected with the data calculation processing module and is used for storing data carried by the carrier signal with the strongest signal strength in the handshake transmission carrier signals received by the network transmission receiving module;
and the network transmission and transmission module is connected with the data calculation and processing module and the antenna group module and is used for transmitting the data carried by the channel carrier signal with the strongest signal strength to the network transmission node device NP with the optimal bandwidth capacity in the convergence direction of the peripheral network in a different frequency mode through the transmission antenna of the antenna group module.
Specifically, the data computing processing module is embedded with a signal strength comparison algorithm, a frequency band identification and regulation algorithm and a bandwidth capacity computing algorithm, wherein the signal strength comparison algorithm is used for comparing the strengths of a plurality of handshake transmission carrier signals received by the network transmission and reception module and processing the handshake transmission carrier signals with the strongest reserved signal strength by 'selecting strong and weak' processing; the frequency band identification and regulation algorithm is used for identifying the frequency band of the handshake transmission carrier signal with the strongest signal strength, and then controlling the network transmission and transmission module to forward the data stored by the data storage module to the wireless local area network by using the different frequency method; the bandwidth capacity calculation algorithm is used for calculating the bandwidth capacity of the network transmission node device NP in the convergence direction of the peripheral network, and selecting the network transmission node device NP with the optimal bandwidth capacity as a handshake node object of the next transmission carrier signal.
The status display module comprises:
the pilot frequency receiving and transmitting indicator lamp is connected with the network function module and is used for displaying whether the network transmission node device NP is in a pilot frequency receiving and transmitting state and the signal intensity of the pilot frequency receiving and transmitting of the node device;
the pilot frequency receiving indicator lamp adopts a green strip indicator lamp, the lighting of the lamp represents that the network transmission node device NP is in a pilot frequency receiving and transmitting state, and the lighting length of the lamp represents the signal intensity of the pilot frequency receiving and transmitting of the network transmission node device NP;
the wireless mobile signal indicator lamp is connected with the antenna group module and is used for displaying the access state of the wireless mobile signal and the intensity of the wireless mobile signal accessed by the network transmission node device NP;
the wireless mobile signal indicator lamp adopts a yellow strip indicator lamp, the lighting of the lamp represents that the wireless mobile signal is accessed by the network transmission node device NP, and the lighting length of the lamp represents the intensity of the wireless mobile signal accessed by the network transmission node device NP;
the network-access operation indicator lamp is connected with the antenna group module and is used for displaying the network-access operation state of the network transmission node device NP;
the network-access operation indicator lamp adopts a red-blue indicator lamp, the red lamp is on to indicate that the network transmission node device NP is electrified, and the blue lamp is on to indicate that the network transmission node device NP is added into a network transmission link.
The power module comprises: the power adapter directly takes electricity on a 220V power socket of the underground power station, converts 220V alternating current into low-voltage stable direct current and supplies power to the network transmission node device NP through the power interface.
In one embodiment of the present invention, the network transmission node device NP receives a dual-channel carrier signal sent by a network node unit at a previous stage of the network transmission node device NP in a wireless local area network transmission route link, where the network node unit at the previous stage of the network transmission node device NP may be the network transmission node device NP, the network convergence gateway RP and/or the interface conversion access terminal TP; the network function module of the network transmission node device NP compares the strength of the handshake transmission carrier signals of each dual-channel carrier signal, and retains the handshake transmission carrier signal with the strongest signal strength after the processing of selecting strong and weak.
The network function module of the network transmission node device NP stores the data carried by the handshake transmission carrier signal with the strongest signal strength, identifies the channel frequency band of the handshake transmission carrier signal, and defines the identified channel frequency band for receiving the handshake transmission carrier signal as a first channel frequency band, and defines another channel frequency band different from the first channel frequency band as a second channel frequency band.
The network function module calculates the bandwidth capacity of the network node units in the surrounding network convergence direction, and determines the handshake node object of the network transmission node device NP for transmitting handshake transmission carrier signals through selecting the best route link of the bandwidth capacity of the network node units in the surrounding network convergence direction, namely, determines the next-stage network node unit of the network transmission node device NP in the wireless local area network transmission route link, wherein the next-stage network node unit of the network transmission node device NP can be the network transmission node device NP, the network convergence gateway RP or an interface conversion access terminal TP, the network transmission node device NP is in air handshake interconnection with the network node units with the best bandwidth capacity in the surrounding network convergence direction in an inter-frequency mode, and the inter-frequency mode refers to the use of the channel frequency band which is different from the channel frequency band of the handshake transmission carrier signals with the strongest received signal strength, namely, the channel frequency band adopted by the network transmission node device for forwarding data is different from the channel frequency band adopted by the network transmission node device. In this embodiment, the network transmission node device NP is connected with the next-stage network node unit with the optimal peripheral convergent office bandwidth capacity through the second channel frequency band in an air handshake manner.
The network transmission node NP judges the strength of the double-channel carrier signal and the bandwidth capacity of the network node through a network function module, and realizes the optimization of the wireless local area network transmission route link of the underground power station; the network transmission node NP identifies the frequency of the received handshake transmission signal, and forwards the data carried by the received handshake transmission signal to the wireless local area network in an inter-frequency mode, so that an intelligent judgment mechanism of inter-frequency transceiving is realized, and the convergence rate of the network transmission bandwidth is effectively reduced. The display device of the network transmission node NP can display the receiving frequency and the intensity of the node device in real time, thereby being beneficial to the on-site network distribution optimization, and meanwhile, the power supply module of the network transmission node NP enables the node device to have a plug-and-play function.
The plug and play interconnection networking is embodied in the following steps: the network transmission node NP can be arbitrarily increased and reduced in hot plug without using on-site network configuration debugging, the interface conversion access terminal TP and the network transmission node NP are interconnected through a wireless antenna, and the network transmission node NP and the network convergence gateway RP are interconnected through the wireless antenna, so that the normal operation of a network system is not hindered. The invention does not need to carry out on-site wiring construction, and compared with the traditional wireless access local area network, the local area network saves a great amount of materials and labor construction cost.
In another embodiment of the present invention, the interface conversion access terminal TP is an interface conversion access terminal with the capabilities of network node transceiver route optimization and frequency selective relay of a network transmission node, where the interface conversion access terminal has RJ45, RS232, FR, bluetooth, FC/APC and other wireless multi-protocol photoelectric interfaces, so as to facilitate access of multimedia service data information outside the system.
The interface conversion access terminal TP includes:
comprises a shell, a wired interface, an antenna group and a power line. The housing is a box-like structure containing a lid. The wired interface and the antenna group are arranged on the shell. The shell is also provided with an indicating lamp group for displaying the working state of the device, which is an operation indicating lamp A, a strip-type different-frequency receiving and transmitting indicating lamp B and a strip-type WIFI access state indicating lamp C.
The wired interface mainly plays a role of converting and accessing external signals in a wired mode and comprises a wired access electric port, a wired access optical port and an active Ethernet POE interface. The wired electric inlet can be respectively connected with the wide and narrow band multimedia data information electric signals of RJ45, RS232 and RS485 interface protocols, and realizes a two-layer transparent transmission function conforming to the 802.11 network protocol. The wired access optical port can be accessed to the wide and narrow band multimedia data information optical signal of the FC/APC optical fiber interface protocol, and realizes the two-layer transparent transmission function conforming to the 802.11 network protocol. The active Ethernet POE interface is interconnected with the on-site multimedia data information acquisition device for supplying energy.
The antenna group comprises three antennas, wherein two antennas are used for receiving and transmitting double-channel carrier data signals transmitted by a network, and the other antenna is used for accessing wireless mobile roaming signals. Optionally, the three antennas are glue stick antennas.
The operation indicator lamp A adopts a red-blue double-color indicator lamp and is used for indicating the interface to switch the network access operation state of the access terminal TP; if the red light is on, the representative interface conversion access terminal TP is powered on; if the blue light is on, the interface conversion access terminal TP is added into a network transmission link, and the network transmission link refers to a multimedia information data transmission link between two layers of structures of the network transmission node NP and the interface conversion access terminal TP.
The strip-type different-frequency receiving and transmitting indicator lamp B adopts a green strip-type indicator lamp and is used for displaying the different-frequency receiving and transmitting state of the interface conversion access terminal TP; if the B lamp is on, the interface conversion access terminal TP is in the different-frequency receiving and transmitting state, and the on-lamp length of the lamp bar represents the signal strength of the different-frequency receiving and transmitting state, so that the current position of the interface conversion access terminal TP can be adjusted according to the on-lamp length of the lamp bar to be placed at the optimal position of the different-frequency receiving and transmitting signal.
The strip-type WIFI access state indicator lamp C adopts a yellow strip-type indicator lamp and is used for displaying the access state of the wireless mobile signal of the interface conversion access terminal TP; if the light C is on, the interface conversion access terminal TP has a wireless mobile signal connected thereto, and the on length of the light bar represents the intensity of the connected wireless mobile signal.
The interface conversion access terminal TP comprises a shell, wherein a wireless protocol conversion module, a wired interface module, a power module, a relay node module and a built-in antenna module are arranged inside the shell.
The wireless protocol conversion module is used for managing the wireless interface data flowing through, and the wired interface module is used for managing the wired interface data flowing through. The power module is connected with a power line and is used for supplying power to the network convergence gateway RP. The relay node module plays a role in relaying and forwarding signals. The built-in antenna module is used for receiving the external wide-narrow-band multimedia data information electric signal of the system of the Bluetooth, RF, zigbee wireless interface protocol.
In the embodiment of the invention, the wired interface is connected with the wide-narrow band multimedia data information electric signals of RJ45, RS232 and RS485 interface protocols, the wide-narrow band multimedia data information optical signals of FC/APC optical fiber interface protocols and the like from the outside of the system, and the signals are transmitted to the wired interface module, then relayed and forwarded to the antenna through the relay node module, and finally the multimedia information data is transmitted to one or more nearby network transmission node devices NP through the antenna responsible for receiving and transmitting the network-transmitted double-channel carrier data signals.
In another embodiment of the present invention, the built-in antenna module receives the broadband and narrowband multimedia information data of Bluetooth, RF, zigbee wireless interface protocol from outside the system and transmits the data to the wireless protocol conversion module, and then relays the data to the antenna through the relay node module, and finally transmits the multimedia information data to one or more nearby network transmission node devices NP through the antenna responsible for receiving and transmitting the dual-channel carrier data signal transmitted by the network.
In one embodiment of the present invention, the network convergence gateway RP, the network transmission node NP and the interface conversion access terminal TP perform MAC address binding, and the network convergence gateway RP, the network transmission node NP and the interface conversion access terminal TP access SSID hotspots are hidden, so as to implement wpa2+username+password authentication air interface access audit, prevent illegal intrusion to the local area network system from the outside, and ensure communication security of the power system.
The wireless local area network system for the underground power station provided by the invention has the following functions:
the system has the functions of wireless non-line-of-sight, multi-path preferential, short-distance low-radiation transmission broadband multimedia data information networking;
the network element has the networking characteristics of no debugging, no wiring and plug-and-play;
the network link self-recovery function after the position movement change and the quantity increase and decrease of the network element nodes is provided;
the network element has the self-repairing function of the network routing link after exiting due to faults;
the interface function that the multimedia data information has wireless multi-protocol access is provided;
the mobile terminal multimedia data information wireless mobile access and roaming function is provided;
the method has the high network bandwidth capacity edge calculation function of route optimization and channel frequency selection;
the system has the protection function of interconnecting the two-way multimedia data of the wireless wide area network and the virtual private network;
the system has the functions of on-line monitoring, statistics and management of network running states and access states, and realizes local area network centralized control management and free dynamic networking;
the system has multiple security protection functions such as data software encryption, access unit address binding and password management, wireless hot spot address hiding and the like.
The invention has the following advantages:
1. the network transmission node NP, the interface conversion access terminal TP and the network convergence gateway RP all have wireless mobile access capability conforming to 801.11 protocol.
2. The network transmission node NP judges the intensity of the double-channel carrier signal and the bandwidth capacity of the network node through the network function module, and realizes the optimization of the wireless local area network transmission route link of the underground power station. The network transmission node NP identifies the frequency of the received handshake transmission signal, and forwards the data carried by the received handshake transmission signal to the wireless local area network in an inter-frequency mode, so that an intelligent judgment mechanism of inter-frequency transceiving is realized, and the convergence rate of the network transmission bandwidth is effectively reduced.
3. The network transmission node NP can be increased and reduced at will to realize plug and play without using on-site network configuration debugging, the interface conversion access terminal TP and the network transmission node NP are directly connected through an interface, the network transmission node NP and the network convergence gateway RP are directly connected through an interface without interfering the normal operation of a network system, and the local area network saves a great deal of materials and labor construction cost compared with the traditional wireless access local area network because the local area network does not need on-site wiring construction.
4. The network convergence gateway RP is of a single configuration, has a multimedia information broadband transceiving bidirectional interconnection function between the underground local area network and the ground wide area network, realizes the interconnection of the underground local area network and the ground wide area network in a wired and/or wireless mode through a wired and/or wireless communication interface, and realizes the safe interconnection of the underground power station plug and play broadband multimedia local area network system and the wide area network in a virtual special network air interface safety protection mode.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (5)
1. A wireless local area network system for an underground utility, comprising:
the network convergence gateway RP realizes wireless bidirectional intercommunication and interconnection with the ground wide area network;
each network transmission node NP realizes wireless bidirectional intercommunication and interconnection with a network convergence gateway RP, and wireless bidirectional intercommunication and interconnection are also realized between any two network transmission nodes NP;
the system comprises a plurality of interface conversion access terminals TP, wherein each interface conversion access terminal TP is at least in wireless bidirectional intercommunication with one network transmission node NP;
the network transmission node NP receives signals and transmits signals by adopting different frequency bands respectively;
the network transmission node NP receives signals sent by the interface conversion access terminal TP, and saves the data information carried in the signals with the strongest signal strength; the network transmission node NP receives signals sent by other network transmission nodes NP and stores the data information carried in the signal with the strongest signal strength;
the network transmission node NP sends data information to a network convergence gateway RP or other network transmission nodes NP with optimal bandwidth capacity;
the network transmission node NP identifies the frequency of the received handshake transmission signal, and forwards the data carried by the received handshake transmission signal to the wireless local area network in a different frequency mode, so as to realize an intelligent judgment mechanism of different frequency transceiving;
the interface conversion access terminal TP receives multimedia information data information of the underground power station through a wired communication interface and/or a wireless communication interface.
2. The wireless lan system for an underground station according to claim 1, wherein the communication among the network convergence gateway RP, the network transmission node NP, and the interface conversion access terminal TP adopts the 801.11 protocol.
3. The wireless local area network system for the underground power station according to claim 1, wherein the network convergence gateway RP realizes the interconnection of the wireless local area network system for the underground power station and a ground wide area network in a wired mode and/or a wireless mode through a wired communication interface and/or a wireless communication interface.
4. The wireless lan system for an underground power station of claim 1, wherein the network transmission node NP directly takes power from a 220 v outlet of the underground power station, so as to implement plug and play.
5. A wireless local area network system for an underground utility as in claim 1 or 3, wherein said communication interface comprises at least: RJ45 wired network port, RS232 interface, FR interface, bluetooth protocol photoelectric interface, FC/APC optical port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535748.7A CN111629382B (en) | 2020-06-12 | 2020-06-12 | Wireless local area network system for underground power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535748.7A CN111629382B (en) | 2020-06-12 | 2020-06-12 | Wireless local area network system for underground power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111629382A CN111629382A (en) | 2020-09-04 |
| CN111629382B true CN111629382B (en) | 2023-08-25 |
Family
ID=72259384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010535748.7A Active CN111629382B (en) | 2020-06-12 | 2020-06-12 | Wireless local area network system for underground power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111629382B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114513764A (en) * | 2021-12-06 | 2022-05-17 | 成都中星世通电子科技有限公司 | Multi-node data storage and interaction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043267A1 (en) * | 2007-09-28 | 2009-04-09 | Huawei Technologies Co., Ltd. | Wireless broadband access network, device, access method |
| CN103067977A (en) * | 2012-12-18 | 2013-04-24 | 华中科技大学 | Data concurrence transmission method based on cross-layer optimization in wireless heterogeneous network system |
| CN103108294A (en) * | 2011-11-10 | 2013-05-15 | 中国电信股份有限公司 | Data forwarding processing method and gateway equipment and communication system |
| CN104580295A (en) * | 2013-10-17 | 2015-04-29 | 宁波视竣信息科技有限公司 | Intelligent broadband communication method and system used for high-speed train in moving state |
| CN205050340U (en) * | 2015-07-17 | 2016-02-24 | 袁丽 | A intelligence control system , wireless communication system , vehicle test node, relay node and assemble node for intelligent transportation monitoring |
| WO2017012468A1 (en) * | 2015-07-17 | 2017-01-26 | 袁丽 | Wireless communication system and method for smart traffic monitoring |
| CN110487350A (en) * | 2019-08-29 | 2019-11-22 | 湖北民族大学 | A kind of mining under reservoir distribution water level monitoring and warning system and method |
| CN210570889U (en) * | 2019-08-29 | 2020-05-19 | 湖北民族大学 | Reservoir downstream distributed water level monitoring and early warning device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7933247B2 (en) * | 2004-11-18 | 2011-04-26 | Sanjay M. Gidwani | Real-time scalable wireless switching network |
| US9585048B2 (en) * | 2013-10-30 | 2017-02-28 | Qualcomm Incorporated | Techniques for aggregating data from WWAN and WLAN |
| US10834661B2 (en) * | 2018-04-27 | 2020-11-10 | Qualcomm Incorporated | Multiple connectivity for high reliability |
-
2020
- 2020-06-12 CN CN202010535748.7A patent/CN111629382B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043267A1 (en) * | 2007-09-28 | 2009-04-09 | Huawei Technologies Co., Ltd. | Wireless broadband access network, device, access method |
| CN103108294A (en) * | 2011-11-10 | 2013-05-15 | 中国电信股份有限公司 | Data forwarding processing method and gateway equipment and communication system |
| CN103067977A (en) * | 2012-12-18 | 2013-04-24 | 华中科技大学 | Data concurrence transmission method based on cross-layer optimization in wireless heterogeneous network system |
| CN104580295A (en) * | 2013-10-17 | 2015-04-29 | 宁波视竣信息科技有限公司 | Intelligent broadband communication method and system used for high-speed train in moving state |
| CN205050340U (en) * | 2015-07-17 | 2016-02-24 | 袁丽 | A intelligence control system , wireless communication system , vehicle test node, relay node and assemble node for intelligent transportation monitoring |
| WO2017012468A1 (en) * | 2015-07-17 | 2017-01-26 | 袁丽 | Wireless communication system and method for smart traffic monitoring |
| CN110487350A (en) * | 2019-08-29 | 2019-11-22 | 湖北民族大学 | A kind of mining under reservoir distribution water level monitoring and warning system and method |
| CN210570889U (en) * | 2019-08-29 | 2020-05-19 | 湖北民族大学 | Reservoir downstream distributed water level monitoring and early warning device |
Non-Patent Citations (1)
| Title |
|---|
| 煤矿井下异构无线Mesh感知网络融合研究;石玲玲;李敬兆;;微电子学与计算机(01);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111629382A (en) | 2020-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070201540A1 (en) | Hybrid power line wireless communication network | |
| CN201248048Y (en) | Forest fire prewarning and monitoring system based on ZigBee sensing net | |
| CN103052051A (en) | Wireless self-organizing communication system and communication method thereof | |
| CN108156672A (en) | A kind of bus duct temperature acquisition gateway based on NB-IoT and LoRa | |
| CN111629382B (en) | Wireless local area network system for underground power station | |
| CN103346824B (en) | Electric power data transfer system | |
| CN113163517A (en) | Complex environment multimode fusion emergency communication equipment | |
| CN212012687U (en) | Distributed MESH WIFI6 router with storage function | |
| CN110460986B (en) | System and method for long-distance multimedia wireless emergency communication in closed space | |
| CN110611722A (en) | Security monitoring system and security system based on distributed base station | |
| CN212486526U (en) | Aggregation device of broadband multimedia local area network system of underground power station | |
| CN212034129U (en) | Access device for broadband multimedia local area network system of underground power station | |
| CN206194118U (en) | With electric information collection device and system | |
| CN111526076A (en) | Aggregation device of broadband multimedia local area network system of underground power station | |
| CN210327646U (en) | Security monitoring system and security system based on distributed base station | |
| CN110839293B (en) | Power transmission line state monitoring agent device | |
| CN207766252U (en) | A kind of double-frequency wireless ad hoc network transmission device | |
| CN105933856A (en) | Wearable intelligent integrated host multiple wireless ad hoc network implementation method and system | |
| CN111541594A (en) | Access device for broadband multimedia local area network system of underground power station | |
| CN208252112U (en) | A kind of Coalmine's Monitoring and Controlling System based on Digital Transmission | |
| CN111629392B (en) | Wireless local area network transmission node device for underground power station and signal transmission method | |
| CN103634943A (en) | WiFi accessing method and device | |
| CN206993419U (en) | On-site wireless mesh network systems | |
| CN216451552U (en) | Cable channel wireless ad hoc network communication system | |
| Lu | Design and implementation of coal mine wireless sensor Ad Hoc network based on LoRa |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |