Power tunnel wireless integrated communication device

Abstract

The present invention discloses a wireless integrated communication device for a power tunnel, including an access layer and a core layer. The access layer transmits the received signal to an external network through the core layer. The access layer is composed of a directional antenna and a wireless access device AP deployed in the tunnel. The wireless access device AP is connected to the directional antenna through a radio frequency cable. The wireless access device AP transmits the received information to an industrial switch in a tunnel monitoring box through a network cable. The industrial switch transmits the information to the core layer. The core layer includes a core switch, an application server, a voice server, a positioning server, a voice gateway, a wireless gateway and a security device. One end of the core switch is connected to the access switch in the access layer, and the other end is connected to the application server, the voice server, the positioning server, the voice gateway, the wireless gateway and the security device. The present invention can not only ensure real-time communication of personnel in the tunnel, but also facilitate the development and operation and maintenance of subsequent mobile services.

Description

Technical Field

[0001] The invention relates to a communication device, in particular to a wireless integrated communication device for a power tunnel. Background Art

[0002] With the development of social economy and the acceleration of urbanization, the demand for urban electricity has increased, and the construction scale of power tunnels has also increased year by year. The construction of power tunnels eliminates the risk of safety accidents of outdoor high-voltage cables in extremely bad weather, and can also fundamentally solve the problem of external force damage to power lines. At the same time, it helps to improve the social service capabilities of the power grid and the improvement of the urban security system. It is an active response to the country's call to improve the people's livelihood service capabilities. However, the mobile phone signals of operators in cable tunnels cannot penetrate the soil covering the tunnel, so line patrol personnel cannot contact the outside world in real time in the tunnel; and the relevant mobile business applications in the tunnel lack a communication platform and are difficult to carry out, which affects the expansion of power business and is not conducive to personnel operation and maintenance. Summary of the invention

[0003] The technical problem to be solved by the present invention is: to overcome the shortcomings of the existing technology and provide a communication platform that is not limited to a single tunnel, but also focuses on a wireless communication platform at the city level and the network level. At the same time, the wireless communication platform can be integrated into other services, and a wireless integrated communication device for power tunnels that can achieve seamless integration of power services.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A wireless integrated communication device in an electric power tunnel comprises an access layer and a core layer, wherein the access layer transmits received signals to an external network through the core layer, wherein the access layer is composed of a directional antenna and a wireless access device AP deployed in the tunnel, wherein the wireless access device AP is connected to the directional antenna through a radio frequency cable, wherein the wireless access device AP transmits received information to an industrial switch in a tunnel monitoring box through a network cable, wherein the industrial switches are connected to form an industrial switch ring network in the tunnel, wherein the industrial switch transmits information to the core layer through the access switch in the access layer, wherein the core layer comprises a core switch, an application server, a voice server, and a positioning server. Server, voice gateway, wireless gateway and security equipment, one end of the core switch is connected to the access switch in the access layer, and the other end is connected to the application server, voice server, positioning server, voice gateway, wireless gateway and security equipment, the voice gateway relays the IP voice data in the received information to the program-controlled switch in the external power transmission network through the in-station transmission equipment, the wireless gateway forwards the wireless voice traffic and mobile business traffic in the received information to the corresponding voice platform and business platform for subsequent processing, the security equipment acts as an isolation device of the device to logically isolate the traffic, and the security equipment is connected to the external power MIS network through the in-station MIS switch.

[0006] The wireless access device AP uses two radio frequency cables to connect to a single directional antenna respectively. The distance between the wireless access device AP and the directional antenna is at least three meters, and the distance between two wireless access devices AP is set to 120 meters.

[0007] The voice gateway is connected to the pulse code modulation equipment in the substation through a voice cable. The voice gateway includes an analog gateway and a digital gateway. The analog gateway is connected to the public switched telephone network through an external exchange interface. The digital gateway supports video communication. The digital gateway can be connected to the public switched telephone network through a digital relay E1 interface, IP interface or serial interface.

[0008] The voice server is provided with a VMware virtualization platform, and both the voice gateway and the voice server use the SIP protocol to transmit IP voice.

[0009] The information in the entire device can be roughly divided into voice flow and data flow according to the data flow. The voice flow path is wireless access device AP→industrial switch ring network→access switch→core switch→voice server→voice gateway→in-station transmission equipment→power transmission network→programmable switch→public switched telephone network; the data flow path is wireless access device AP→industrial switch ring network→access switch→core switch→security equipment→in-station MIS switch→power MIS network→other business servers→public switched telephone network.

[0010] The positive beneficial effects of the present invention are:

[0011] 1. The present invention introduces wireless methods in the tunnel as a supplement to wired communication methods, and comprehensively utilizes technologies such as voice relay and mobile APP to build a unified wireless integrated communication platform, which can not only ensure that personnel can communicate in real time anytime and anywhere through wireless connection via mobile phones, but also facilitate the development and operation and maintenance of subsequent mobile services.

[0012] 2. The implementation of the present invention not only avoids the many hidden dangers that mobile phone signals of multiple operators are difficult to introduce into the tunnel and difficult to integrate with other services, but also can serve as a wireless integrated communication platform in the power tunnel, supporting voice and high-speed data services. Its implementation has reference and promotion significance for the construction of the entire communication platform in the power tunnel.

[0013] 3. The present invention breaks through the limitations of regions and operators, and uses wireless methods to connect various mobile terminals to achieve personal mobile phone voice and data access. It can be widely used in power tunnels. It is not limited to the communication platform within a single tunnel, but also focuses on wireless communication platforms at the city level and network level. At the same time, the wireless communication platform can be integrated into other services to achieve seamless integration between power services.

[0014] 4. Compared with the method of multiple operators' mobile phone signal access tunnel, the present invention saves investment, reduces construction complexity, facilitates later operation and maintenance, and can carry out multiple extended applications based on wireless technology, reducing the difficulty of personnel operation and maintenance. Then, through the platform form, local information islands can be avoided, the overall structure is clear, and the functions are modularized to meet the needs of business growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a topological diagram of the communication platform of the wireless integrated communication device for the electric power tunnel of the present invention;

[0016] Figure 2 It is a data flow diagram of the communication platform of the wireless integrated communication device for the electric power tunnel of the present invention. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 , Attachment Figure 2 The present invention will be further explained and illustrated with specific embodiments:

[0018] Embodiment: A wireless integrated communication device for a power tunnel includes an access layer and a core layer. The access layer transmits the received signal to the external network through the core layer to realize normal communication between the tunnel and the outside. The access layer is composed of a directional antenna and a wireless access device AP deployed in the tunnel. The wireless access device AP is connected to the directional antenna through a radio frequency cable. The wireless access device AP transmits the received information to the industrial switch in the tunnel monitoring box through a network cable. The industrial switches are 200 meters apart. The industrial switches are connected to form an industrial switch ring network in the tunnel. The industrial switches transmit the information to the core layer through the access switch in the access layer. The core layer includes a core switch, Application server, voice server, positioning server, voice gateway, wireless gateway and security equipment. One end of the core switch is connected to the access switch in the access layer, and the other end is connected to the application server, voice server, positioning server, voice gateway, wireless gateway and security equipment. The voice gateway relays the IP voice data in the received information to the external programmable switch in the power transmission network through the in-station transmission equipment. The wireless gateway forwards the wireless voice traffic and mobile business traffic in the received information to the corresponding voice platform and business platform for subsequent processing. The security device acts as an isolation device for the device to logically isolate the traffic, and the security device is connected to the external power MIS network through the in-station MIS switch.

[0019] The wireless access device AP uses two RF cables to connect a single directional antenna. In order to avoid non-wireless interference, the distance between the wireless access device AP and the directional antenna is at least three meters, and the distance between two wireless access devices AP is set to 120 meters.

[0020] The wireless frequency selects 2.4Ghz band. The range of 2.4Ghz wireless frequency band is 2401MHz~2483MHz, each band is 22MHz, and there is a frequency point every 5MHz. There are 13 available frequency points in total, which overlap with each other. There are only three frequency points that do not interfere with each other, namely frequency point 1, frequency point 6 and frequency point 11. This device uses frequency point 1, frequency point 6 and frequency point 11 in a cycle, and the wireless protocol selects 802.11n.

[0021] The voice gateway is connected to the pulse code modulation equipment in the substation through the voice cable. The voice gateway includes analog gateway and digital gateway. The analog gateway is connected to the public switched telephone network through the external exchange interface. The digital gateway supports video communication. The digital gateway can be connected to the public switched telephone network through the digital relay E1 interface, IP interface or serial interface.

[0022] According to the daily operation and maintenance of the tunnel, an analog gateway is selected as the voice system relay, and the Session Initiation Protocol is used as the call control protocol.

[0023] The voice server is equipped with a VMware virtualization platform, which can realize the flexible deployment of hosts such as DHCP service, user authentication service, and WEB management background. The voice gateway and voice server both use the SIP protocol to transmit IP voice.

[0024] The wireless access device AP at the tunnel entrance uses an independent authentication template and configures security policies to restrict the client to communicate only with the voice server IP.

[0025] A set of micro repeaters, also known as mobile phone signal amplifiers, is deployed at the entrance of the tunnel to introduce the operator's mobile phone signal and realize call forwarding by sending text messages from mobile phones. Users register their personal information, phone numbers and MAC addresses through the mobile phone APP at the entrance of the tunnel. After the Web background receives the registration information, the relevant information of the successfully reviewed personnel is registered to the corresponding IP voice server through the Asterisk voice server control interface with TCP\IP flow, and a one-to-one correspondence between the internal voice number and the external line is established. At the same time, the Radius protocol and AC maintain the verification channel; after the personnel log in to the system through the mobile phone APP, they can automatically correspond their personal mobile phone number to the tunnel voice external phone. When the call is forwarded, After the function is successful, the voice system establishes a one-to-one correspondence between the internal extension number and the external line. When a person outside the tunnel initiates a voice call to a person inside the tunnel, the voice system transfers the call to the extension number of the corresponding person according to the outgoing call number, meeting the communication needs inside and outside the tunnel; when a call is made outside the tunnel in the tunnel, the number displayed on the other party's caller ID is the external line number of the voice system. When a person outside the tunnel calls the mobile phone number of a person inside the tunnel, the incoming call number displayed on the mobile phone APP is the caller's number, but answering the call outside the tunnel will incur charges. In actual applications, the voice system can send a message notification to the corresponding extension number, and then the person in the tunnel will call back; when the person is in the tunnel, the voice APP remains in the background, and the person manually cancels the call forwarding after leaving the tunnel.

[0026] In actual applications, when a person enters a tunnel, after a simple verification, the person downloads the mobile APP client (which can also be pre-installed) through WLAN and accesses the IP voice network. After the user confirms the client, the call is automatically set to the voice gateway IP phone number using the call forwarding function of the mobile phone. When the person is in the tunnel, the call is broadcast through the wireless system via the voice gateway to achieve normal communication. Outsiders can also communicate normally by calling the mobile phone number of the person in the tunnel. The IP voice network can remind the person that he is in the tunnel, and can also send messages to the corresponding user's mobile phone through IP voice, which can reduce the transfer fee. When the person leaves the tunnel, the mobile APP can automatically cancel the call forwarding and the user can communicate normally.

[0027] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A wireless integrated communication device for a power tunnel, comprising an access layer and a core layer, characterized in that: The access layer transmits the received signal to the external network through the core layer. The access layer is composed of a directional antenna and a wireless access device AP deployed in the tunnel. The wireless access device AP is connected to the directional antenna through a radio frequency cable. The wireless access device AP transmits the received information to the industrial switch in the tunnel monitoring box through a network cable. The industrial switches are connected to form an industrial switch ring network in the tunnel. The industrial switch transmits the information to the core layer through the access switch in the access layer. The core layer includes a core switch, an application server, a voice server, a positioning server, a voice gateway, and a wireless gateway. and security equipment, one end of the core switch is connected to the access switch in the access layer, and the other end is connected to the application server, voice server, positioning server, voice gateway, wireless gateway and security equipment, the voice gateway relays the IP voice data in the received information to the program-controlled switch in the external power transmission network through the in-station transmission equipment, the wireless gateway forwards the wireless voice traffic and mobile service traffic in the received information to the corresponding voice platform and service platform for subsequent processing, the security equipment acts as an isolation device of the device to logically isolate the traffic, and the security equipment is connected to the external power MIS network through the in-station MIS switch; A set of micro repeaters, also known as mobile phone signal amplifiers, is deployed at the entrance of the tunnel to introduce the operator's mobile phone signal and realize call forwarding by sending text messages from mobile phones. Users register their personal information, phone numbers and MAC addresses through the mobile phone APP at the entrance of the tunnel. After the Web background receives the registration information, the relevant information of the successfully reviewed personnel is registered to the corresponding IP voice server through the Asterisk voice server control interface with TCP\IP stream, and a one-to-one correspondence between internal voice numbers and external lines is established. After the personnel log in to the system through the mobile phone APP, they can automatically correspond their personal mobile phone numbers to the tunnel voice external phone. After the call is successfully forwarded, the voice system establishes a one-to-one correspondence between the internal extension number and the external line. When a person outside the tunnel initiates a voice call to a person inside the tunnel, the voice system transfers the call to the extension number of the corresponding person according to the outgoing number, meeting the communication needs inside and outside the tunnel.

2. The wireless integrated communication device for electric power tunnel according to claim 1 is characterized in that: The wireless access device AP uses two radio frequency cables to connect to a single directional antenna respectively. The distance between the wireless access device AP and the directional antenna is at least three meters, and the distance between two wireless access devices AP is set to 120 meters.

3. The wireless integrated communication device for electric power tunnel according to claim 1 is characterized in that: The voice gateway is connected to the pulse code modulation equipment in the substation through a voice cable. The voice gateway includes an analog gateway and a digital gateway. The analog gateway is connected to the public switched telephone network through an external exchange interface. The digital gateway supports video communication. The digital gateway can be connected to the public switched telephone network through a digital relay E1 interface, IP interface or serial interface.

4. The wireless integrated communication device for electric power tunnel according to claim 1 is characterized in that: The voice server is provided with a VMware virtualization platform, and both the voice gateway and the voice server use the SIP protocol to transmit IP voice.

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