KR19980033480A - WiFi positioning system - Google Patents

Abstract

A system for identifying a location of a wireless LAN, which is capable of identifying a location by identifying a terminal location of a portable computer connected to a wireless LAN system and displaying it on a monitor of the computer. The wireless LAN positioning system includes a plurality of access pointers connected to a server, a plurality of portable computers that communicate data with each other by the access pointer and the LAN network, and the server locates the portable computer within a transmission and reception radius of the access pointer. And control means for displaying on a monitor of a main computer connected to the server. The portable computers are provided with communication means for locating each other and displaying each other on a monitor of the portable computer. Therefore, by identifying and displaying the position of the terminal on the monitor of the computer, it is possible to easily confirm the current position of each terminal user.

Description

WiFi positioning system.

The present invention relates to a system for locating a wireless LAN, wherein the position of a portable computer connected to a wireless LAN is identified and displayed on a monitor, whereby the position of the portable portable computer can be located. It is about.

In general, many PCs are connected to a local area network (LAN). A local area network (LAN) system is a local area network that shares information through a network connection to obtain desired information regardless of time and place. to be.

The network provides data, services, applications, and the like to a user's PC.

Users of PCs use PCs on a fixed location, or on a desk, and applications that require mobility are increasing due to the rapidly increasing information and life changes.

These applications are simplified by mobile computers that are portable and require communication if they contain everything the application can support, but if the application needs to receive or update information from a central database, You must be connected to a wired network.

The LAN system can be classified into a wired LAN system and a wireless LAN system depending on whether or not the place can be moved.

The wired LAN system is cumbersome because of the information network formed through the cable, which makes it difficult to move, expand, install and maintain the cable.

However, the wireless LAN system is free to move, easy to expand and maintain, because the information network is formed through wireless communication, and transmit power of 10mW / MHz at a data rate of 1 ~ 2Mbps for wireless communication between the server and the computer, or computers Perform data communication using and 2.4GHz frequency.

In particular, small portable computers such as laptops use a wireless LAN card for supporting the Personal Computer Memory Card International Association (PCMCIA).

As shown in FIG. 1, the portable computer includes a central processing unit 10, a system RAM 12, a system ROM 14, a hard disk driver 16, a floppy disk driver 18, a liquid crystal display 20, and a keyboard. 22, the wireless LAN card 24 and the like are interconnected via the bus (11).

In addition, the portable computer provides an operating voltage B + to each unit through a power supply unit including a DC connection jack 26, a charging circuit 28, a battery 30, and a power supply unit 32, and a removable WLAN card. 24 is connected to the bus 11 via the LAN card connection 25.

Such portable computer users can use the access pointers to communicate with each other within any range, and can freely move between access pointers in the network.

However, in an environment using a wireless LAN system that communicates through a LAN network of the portable computer and the access pointer, there is no easy function to find the location of the portable computer when the user needs it.

Therefore, when a user using a wireless LAN system wants to find another user's location in a hurry, there is a problem in that the user cannot easily find the location.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a wireless LAN positioning system capable of locating a portable computer by identifying a terminal location of a wireless LAN system and displaying it on a monitor.

1 is a view showing the configuration of a general portable computer,

Figure 2 is a schematic diagram showing an embodiment of a positioning system of a wireless LAN according to the present invention,

3 is a view showing a state where the portable computer whose position is confirmed is displayed on the monitor of the main computer.

Explanation of symbols for the main parts of the drawings

40 ... server

42 bus

44.Main computer

46 ~ 46n ... access pointer

C1 ~ Cn ... Portable Computer

50 ... control unit

P1-Pn ... Communication

A wireless LAN positioning system for achieving the above object comprises a plurality of access pointers connected to the server; A plurality of portable computers communicating data with each other by the access pointer and the LAN; And a control means for detecting, by the server, the position of the portable computer within a transmission / reception radius of the access pointer and displaying on the monitor of the main computer connected to the server.

The portable computers are provided with communication means for identifying the positions of the portable computers and displaying them on the monitor of the portable computers.

According to a feature of the present invention configured as described above, the wireless LAN positioning system according to the present invention monitors the current position of each terminal user by identifying and displaying the position of the terminal of the portable computer on the monitor of the main computer connected to the server You can easily check on

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, the wireless LAN positioning system of the present invention, a plurality of access pointers 46 ~ 46n connected to the server 40; A plurality of portable computers C1 to Cn for mutual data communication by access pointers 46 to 46n and LAN networks; The control means 50 which the server 40 detects the position of the portable computers C1 to Cn within the transmission and reception radius of the access pointers 46 to 46n and displays them on the monitor of the main computer 44 connected to the server 40. It includes;

The portable computers C1 to Cn are provided with communication means P1 to Pn for identifying the positions of the portable computers C1 to Cn and displaying them on the monitors of the portable computers C1 to Cn, respectively.

In more detail, the LAN system may be classified into a wired LAN system and a wireless LAN system according to whether or not the place can be moved.

The wired LAN system is cumbersome because of the information network formed through the cable, which makes it difficult to move, expand, install and maintain the cable.

However, the wireless LAN system is free to move, easy to expand and maintain because the information network is formed through the wireless communication, wireless communication between the server 40 and the computer (C1 ~ Cn), or computers (C1 ~ Cn) In order to perform data communication using a transmission power of 10mW / MHz and a frequency of 2.4GHz at a data rate of 1 to 2Mbps.

In particular, small portable computers such as notebook computers (C1 to Cn) use a wireless LAN card for supporting PCMCIA (Personal Computer Memory Card International Association).

The access pointers 46 to 46n used for the wireless communication exchange commands or data between the server 44 and the portable computers C1 to Cn through the wireless LAN network, and the main computer 44 and the server 40 It is connected via the bus 42.

The access pointers 46 to 46n having a plurality of (23) independent radio channels transmit data through radio waves, and the transmitted data is received by a LAN network, which is input in a frequency hopping spread spectrum (FHSS) scheme.

Frequency Hopping Spread Spectrum (FHSS) is a method of spreading a signal by continuing to transmit a short burst at one frequency and another short burst at another frequency.

By adopting this method, the information to be transmitted is transmitted by transmitting a signal in a much wider bandwidth than the required bandwidth, and the receiving side recovers the data by receiving the signal within the original information bandwidth. Performs data interfacing with the data processing units of the portable computers C1 to Cn by modulating / demodulating the narrowband signal and the wideband signal.

In addition, the users of the portable computer C1 to Cn can access any range of the access pointers 46 to 46n, and can freely move between the access pointers 46 to 46n in the network.

The WLAN attempts to access a data signal by using a space in which communication between data is open, and the access pointers 46 to 46n receive and access the same.

Therefore, one LAN network can be easily constructed using the access pointers 46 to 46n, and additionally, the additional access pointers 46 to 46n are installed in the server 40 equipped with the network software, thereby increasing the LAN scale to infinity. Can be configured and extended networks can be configured.

The controller 50 of the server 40 may use the access pointer to determine the position of the terminals of the portable computers C1 to Cn within the transmission and reception radius, and display them on the monitor of the main computer 44.

In addition, each of the portable computers C1 to Cn includes communication units P1 to Pn to grasp the positions of the portable computers C1 to Cn and display the positions of the terminals identified on the respective computer monitors.

Wireless LAN positioning system according to the present invention by identifying and displaying the location of the terminal on the monitor of the computer, it is possible to easily check the current position of each terminal user on the monitor, it is possible to provide an additional service function of the wireless LAN system have.

Claims (2)

A LAN system having a plurality of access pointers connected to a server, and a plurality of portable computers communicating data with each other by the access pointer and the LAN network, And said server comprises a control means for locating a portable computer within a transmission / reception radius of an access pointer and displaying it on a monitor of a main computer connected to the server. The wireless LAN positioning system according to claim 1, wherein the portable computers are provided with communication means for identifying the positions of the portable computers and displaying them on the monitor of the portable computers.