ES2222084A1 - Equipment for uniting two distant local area networks by movable telephone and Internet, has guider or router located in distant point that turns signals of entrance, and exit for local area network composed of computers - Google Patents

Abstract

The equipment has computers (1, 2) located in a point and connected through a movable telephone to a general packet radio service (GPRS)/ global system for mobile communication (GSM)network (4) by a guider or router (3). Another guider or another router (5) is located in a distant point (B) that turns signals of GPRS/ GSMentrance. An exit for a local area network is composed of other computers (6).

Description

Equipment and method to join two aerial networks remote LAN locations via mobile telephony and Internet.

The present invention relates to equipment and method to link two remote local LAN networks through the infrastructure of cellular telephony and Internet (or IP network internal operator), and more specifically to a system to join a remote LAN network with GPRS / GSM coverage with another LAN network in one control panel that is connected to an operator through a line point to point or an ADSL line.

There are several occasions, when it is necessary  control a particular station that is in a place or at a cumbersome access height, which is the case of a wind turbine or electric current generating station that uses wind energy and that, as is well known, is at a considerable height.

Indeed, in such circumstances, when it produces some problem it is necessary that someone goes up to said station to configure the "software" to upload or download files to a computer that exists together in said wind turbines, or simply to perform remote management and remote maintenance of same.

Similarly another application would be the connectivity with remote sites to perform video surveillance with IP cameras

Background of the invention

US 6 487 595 is known which gives know a method to transmit data from the Internet between a main body and a remote body coupled via the Internet and a mobile phone network (GPRS / GSM). A plurality of levels (QoS), from the point of view of transmission delay Guaranteed over the Internet, using an (RSVP). One (QoS) is mapped to a mode of (HSCSD) of the telephone network, at the same time as maps a controlled load and a maximum effort QoS respectively at two different levels of service in a way packet switched transmission (GPRS) of the telephone network of radio. Before transmitting data from the Internet, the Internet transmission capacity, if necessary, to ensure that the assignment of the QoS level is fulfilled. Then the transmission takes place over the Internet and the telephone network, using the transmission mode in the telephone network that has been mapped to the designated QoS.

The main disadvantage of the said method document is that it does not perform VPNs with PPTP protocols and IPSec, and therefore, does not solve the problem of facilitating the union with the aforementioned LAN networks distant from each other.

Brief description of the requested invention

GPRS technology provides us with a layer on top of GSM to transport IP transparently. At remote place the GPRS router is responsible for capturing the signal and enter IP traffic on the remote LAN. GPRS / GSM signals they mount the Internet IP protocol traffic that reaches a GPRS interface of the device in question and from there a CPU central processing unit of a router or router  which will also be described in detail, where those signals GPRS / GSM become LAN network, so that IP traffic It is then transported over the LAN. Later said IP traffic leaves the router through an Ethernet LAN interface.

That is to say, that in the beginning the mobile phone technology to reach the station or device in question and then internet technology is used to control said station or apparatus.

Brief description of the drawings

For a better understanding of the description that continue, two sheets of drawings are attached in which:

- Figure 1 schematizes a set of equipment in which the method of the invention is performed.

- And figure 2 is a diagram that synthesizes the cited router or router.

Concrete realization of the request

With reference now to figure 1, in it You can appreciate:

a computer, eg laptop 1 located in a point "A" with a server or operator 2, a first router "router" 3 of known type, a mobile telephone network 4, a second router or "router" 5 to be described, and a small network "LAN" composed, eg by two computers 6 and located at a point "B" distant from the first, next to a certain station (for example wind turbines not represented).

The second router type router (figure 2) will basically consist of a central unit of CPU 7 process that converts signals from the GPRS / GSM 8 input in output signals 9 for said LAN 6 network, and a block conventional current transformer and rectifier 10, which it supplies said CPU unit 7, for example, with different voltages 11a and 11b.

In order to illustrate the operation of the proposed method, the following is given below.

Example

You are supposed to be interested in IP connectivity between a office or point A and a remote station or point B (wind turbines) to upload or download files to an existing computer 6 in said appliances The process would be as follows:

- a special ADSL 4 is contracted, that is, a ADSL line that only routes through an operator 2,

- a series of SIMs with GPRS / GSM are contracted activated,

- 1.2 operator is requested to route said GPRS / GSM SIM with ADSL 4,

- in that office a first one is installed conventional router router ADSL 3,

- the second router router is available 5 at the remote station or point B and connects to the computers 6 of the small LAN network.

With this, in the office cited (point A) there will be direct connectivity (that is, IP connectivity) between 1,2 computers against 6 computers in the station remote or point "B".

It should be understood that even when it has been cited, as an example, a wind turbine station, the method proposed will also serve to have connectivity with others stations or points whose cumbersome access makes the cited type of connectivity.

Having described and illustrated a case of practical application, it is noted that this team and method to link two remote local LAN networks using Mobile telephony and Internet can be done with the elements and more appropriate means, all of which is included in the spirit of the following claims.

Claims (3)

1. Equipment to connect two remote local LAN networks via mobile telephony and Internet, characterized in that it comprises:

-

a computer (1,2) located at a point "A" and connected via telephony mobile to a GPRS / GSM network (4) by a first router or conventional "router" (3) capable of transporting GPRS / GSM signals and mount IP traffic, and

-

one second router or router (5) located at a distant point "B" and connected to a small "LAN" network consisting of a determined number of computers (6) existing at that point "B".

2. Equipment according to claim 1, characterized in that said second router or "router" (5) basically comprises a central processing unit CPU (7) that converts GPRS / GSM input signals (8) into an output (9) for the LAN (6), and a conventional transformer and current rectifier block (10) that feeds said unit

 \ hbox {CPU (7).} 

3. Method to connect two remote local LAN networks via mobile telephony and Internet, characterized in that:

-

is arranged in a point "A" a special ADSL (4), that is, an ADSL line that only route through an operator (2),

-

one is available SIM series with GPRS / GSM enabled,

-

it is said operator (2) route said GPRS / GSM SIM with the ADSL (4),

-

at that point "A" provides a first router or "router" conventional ADSL (3),

-

at a distant point "B" a second router router is arranged (5) liable to link said ADSL line, with a LAN (6) existing at that point "B",

whereby, at point "A" there will be direct IP connectivity between computers (1,2) against computers (6) of said point "B".