KR20020034726A - System and method for providing position information by using network - Google Patents

Abstract

PURPOSE: A position based situation information providing system using a communication network and a method thereof are disclosed to allow a plurality of users to perform safe, quick, and convenient position movement by providing dangerous information to the plurality of users. CONSTITUTION: A GPS receiver(150) receives a position of a position based alarm device. An input section(160) performs an object selecting input of situation information and data transmitting/receiving operations through an external communication network. A transceiver(180) transmits and receives at least one of position information and situation information. A storage section(190) stores at least one map. A display device(200) outputs at least one a text form and an image form as the at least one of the position information and situation information. An output section(210) outputs at least one a voice and a sound as the at least one of the position information and situation information.

Description

System and method for providing location based situation information using communication network {System and method for providing position information by using network}

The present invention relates to a system and method for providing location-based contextual information using a communication network. In particular, the present invention relates to a location-based situation using a communication network that can easily and conveniently move location of a plurality of users by obtaining detailed information on a specific point. An information providing system and method.

Thanks to the development of science and technology, many people now use the Global Positioning System (GPS) for the purpose of convenient and rapid positioning in the fields of civil engineering, aviation, ship, space, automobile, leisure, agriculture, forestry and geographic information. : Positioning system).

The easiest way for the general public to find a GPS device is when driving a car. Therefore, for convenience of understanding, the following briefly describes the case where GPS is used in real life.

While driving a car on a road that is unfamiliar to geography, many drivers find their way to their desired destination using an atlas while the car is parked. Of course, in this case it is very rare to find a destination using the atlas only once.

In order to alleviate the inconvenience of these drivers, car navigation is beginning to be attached these days. That is, when the driver inputs only the purpose to go using the car navigation attached to the vehicle, the remaining geographic information is output through the display unit.

The terminal used for this purpose is the Geographic Information System (GIS) using GPS.

Hereinafter, the principle of GPS will be briefly described.

Understanding how GPS works is conceptually very simple. Essentially, GPS uses the principle of triangulation.

In a typical triangulation, the location of an unknown point is determined by measuring the size of the two angles excluding the point and the length between the sides, but in GPS, the unknown point is measured by measuring the length of the two sides between the points you want to know. Determining the position is different from classic triangulation.

In addition, the distance from the satellite to the receiver is calculated by measuring the time difference between the time of occurrence of the code signal generated by each satellite and the time of reception, and multiplying the speed of light by this.

In fact, in order to determine the position of the receiver based on the position of the satellite, in addition to this distance data, the exact position of the satellite must be known. To calculate the position of the satellite, the orbital force transmitted from the GPS satellite is used.

Each satellite generates signals of two different frequencies simultaneously, consisting of signals at the frequency of 1.57542 GHz, known as the L1 carrier, and 1.2276 GHz, called the L2 carrier. The information superimposed on such a carrier consists of a PRN (Pseudo-Random Noise) code and a navigation message.

The PRN code is unique to each satellite and consists of binary codes. It is very long and complex, so when you see only the signal itself, you cannot understand the meaning. In fact, the PRN code does not contain any information but, as the name suggests (Random Noise), is a binary sequence created by some rule that is used to measure the distance to the satellite.

This PRN code is divided into two kinds of codes. The C / A code, which is called Coasrse Acquisition, is also called a private signal and can be used by an individual or a group without special permission. However, the P code is used to encrypt the signal. Permission is required for use.

However, the conventional location-based contextual information providing system has a problem in that a user must separately provide expensive equipment in order to receive and use corresponding information such as geographic information.

In addition, only the corresponding user can use the corresponding information acquired through the request of a specific user, and there is a problem that it is impossible to use necessary information other than the previously stored information.

In addition, there is a problem that a user driving a car is alienated from information suitable for a constantly changing road situation.

Accordingly, an object of the present invention is to provide a plurality of users in close proximity to a particular point of danger, artificial obstacles, etc. for a particular point transmitted from a specific user, thereby providing a safe, fast and convenient location movement for the plurality of users. It is to provide a system and method for providing location-based contextual information using a communication network.

Another object of the present invention is to provide location-based contextual information using a communication network that can be provided by using a voice or video signal in the location-based contextual information providing system receives the location-based contextual information provided from a specific user to the corresponding user It is to provide a system and method.

Another object of the present invention is to provide a system and method for providing location-based contextual information using an economical communication network because it is not necessary to have expensive equipment for transmitting and receiving information of a specific point between a plurality of users.

1 is a system configuration diagram showing the overall configuration of a location-based contextual information providing system using a communication network according to a preferred embodiment of the present invention.

2 is a system configuration diagram showing a location-based alarm device according to a preferred embodiment of the present invention.

3 is a flowchart illustrating a method for transmitting location based contextual information from a location based alerting device to a location based contextual information providing server according to a preferred embodiment of the present invention.

4 is a flow chart illustrating a method for transmitting location based contextual information from a location based contextual information providing server to a location based alerting device in accordance with a preferred embodiment of the present invention.

5 is a flowchart illustrating a method for outputting location-based contextual information received from a location-based contextual information providing server according to a preferred embodiment of the present invention.

6 is an external view illustrating a front surface of a location based alarm device according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110, 114, 140: location-based alarm device 112: mobile communication terminal

120: GPS satellite 130: location-based contextual information server

132: processor 134: storage device

150: GPS receiver 160: input unit

170: control unit 180: transceiver

190: storage unit 200: display unit

210: output unit

In order to achieve the above object, according to an aspect of the present invention, in a method for providing location-based contextual information to a user using a communication network, at least one corresponding situation information for each of at least one location in advance and Receiving a location of the location-based alarm device from the location-based alarm device of the user, searching for a location corresponding to the location of the received location-based alarm device among at least one previously stored location, and storing the at least one location. A context-based contextual information providing method using a communication network is provided, wherein the contextual information corresponding to the searched location is searched from the contextual information, and the searched contextual information is transmitted to the location-based alerting device. Enable location based contextual information provision It is provided by the system and apparatus.

The location-based contextual information may include the location, the contextual information, and the like, and the contextual information may include material information, personal information, and the like corresponding to the location.

The method may further include receiving the location based situation information from at least one location based alarm device; When the received location-based contextual information includes the location and the contextual information, dividing the location and the contextual information; The method may further include storing the contextual information corresponding to the location.

The searching of the location corresponding to the location of the received location-based alarm device may include searching for coordinate information satisfying a predetermined condition when using the location of the received location-based alarm device among at least one previously stored location. The predetermined condition may be specified in consideration of a distance between a plurality of positions, a moving direction, a moving route, and the like.

The location-based alarm device may be used in combination with an external device such as a mobile communication terminal, a computer, a PDA, and the like, and the communication network may include a wired communication network or a wireless communication network.

According to a preferred embodiment of the present invention, in order to share location-based contextual information between a plurality of users using a communication network, a method for providing location-based contextual information using a location-based alarm device, location information providing apparatus Receive a location indicating the location of the location-based alarm device from the user, receives the status information from the user, converts the location and the situation information into a form for transmission, and converts the location and the situation information through an external network The present invention provides a location-based contextual information sharing method using a communication network, and transmits the location-based contextual information sharing method using at least one of a location-based contextual information providing server. Is provided.

The method may further include storing at least one map corresponding to the at least one location-based contextual information in advance; Searching for a map corresponding to the received location among pre-stored maps; The method may further include outputting the searched map to a display unit.

The outputting of the searched map may be performed by displaying the received location on the map.

In addition, storing at least one identification code corresponding to the at least one context information in advance; The method may further include searching for an identification code corresponding to the received situation information among the previously stored identification codes.

The external device may transmit the location and the situation information received from the location based alerting device to the location based situation information providing server in real time.

According to another preferred embodiment of the present invention, in a method for receiving situation information corresponding to a specific location using a communication network, receiving a first location indicating a location of a user's location based alarm device from a location coordinate providing device, The received first location is transmitted to at least one of an external device and a location-based contextual information providing server, and location-based contextual information-location-based contextual information is generated from at least one of the external device and the location-based contextual information providing server. A method for using location-based contextual information using a communication network is provided, the method comprising receiving situation information corresponding to a second position and a second position, and outputting contextual information corresponding to the second position. Provided are a system and apparatus for enabling a method of using location-based contextual information using All.

The method may further include storing in advance at least one map corresponding to the at least one location-based contextual information; Retrieving a map corresponding to the received second location from a pre-stored map; The method may further include outputting the searched map to a display unit.

The outputting of the searched map may be performed by separately displaying the first location and the second location on the map so as to be distinguished from each other.

The outputting of the contextual information corresponding to the second location may include converting the contextual information into at least one of a warning sound, a voice, a sound, and an image; And outputting the converted situation information.

The situation information may be received in the form of a predetermined identification code, and the location coordinate providing apparatus may use a satellite, a base station, a repeater, and the like.

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

1 is a system configuration diagram showing the overall configuration of a location-based contextual information providing system using a communication network according to an embodiment of the present invention.

Referring to FIG. 1, the location-based contextual information providing system may include location-based alerting devices 110 and 140, a GPS satellite 120, and a location-based contextual information providing server 130.

The location-based alarm devices 110 and 140 may be applied to the mobile communication terminal itself including a location-based alarm device to be described later in the mobile communication terminal itself, or may be applied as a hands-free or a combination of cradles for the mobile communication terminal and the mobile communication terminal. Can be.

In addition, the location-based alarm device (110, 140) is used by the user to carry the device in a portable, hands-free or cradle is coupled to an external device such as a car, combined with the user's mobile communication terminal to the device Or to an external device such as a car.

The location-based contextual information providing server 130 may include a processor 132 and a storage device 134.

Hereinafter, the present invention will be briefly described using the system configuration diagram shown in FIG. 1.

In addition, in the present specification, in order to facilitate explanation and understanding, a hands-free or cradle is attached to a vehicle, and a location-based alarm device (110, 140) of a type used by combining a user's mobile communication terminal with the hands-free or cradle. For example, only hands-free or a cradle attached to a vehicle will be referred to as a location-based alarm device 110.

In addition, a method of using a GPS system through the GPS satellite 120 or a method of recognizing a location of a mobile communication terminal using a base station, etc. may be applied to calculate the location of the location-based alarm device 110. Here, the method using the GPS satellite 120 will be described.

If the first user moves through a vehicle equipped with the location-based alarm device 110, and there are artificial obstacles on the road at a specific location, or if there are risk factors such as freezing or accident debris, the first user passes through the location. When the corresponding information is input using the location-based alarm device 110 for the driver's safety, the inputted information is transmitted to the mobile communication terminal through short-range wireless communication or wired communication, and the mobile communication terminal uses a wireless communication network. Automatically transmit to the location-based contextual information providing server 130.

The location-based alarm device 110 recognizes the location at the moment of input of the corresponding information from the first user while receiving the location of the first user in real time from the GPS satellite 120. And the contextual information input by the first user to the location-based contextual information providing server 130 through a communication network.

In this case, even if the first user does not input the situation information, the location-based alerting device 110 of the first user receives the location of the first user received from the GPS satellite 120 and recognized through the mobile communication terminal in real time. In order to transmit to the location-based contextual information providing server 130.

Of course, in this case, only the location of the region is transmitted to the location-based contextual information providing server 130 through the GPS satellite 120, and the contextual information (for example, artificial obstacles, hazards, etc.) Through the method of directly transmitting to the location-based contextual information providing server 130 or a method of transmitting the corresponding position and the contextual information at once through the GPS satellite 120 may be additionally used.

Thereafter, the location-based situation information providing server 130 stores the location and the situation information transmitted from the location-based alert device 110 in the storage device 134.

The location-based contextual information providing server 130 receives a location from a plurality of users having the location-based alerting devices 110 and 140, and pre-specified conditions corresponding to the location received from the first user among the plurality of received locations. Search for a second user whose location matches (e.g., street, road, etc.).

In addition, the location-based contextual information providing server 130 retrieves the corresponding location-based contextual information (that is, location and / or contextual information, etc.) received from the first user and stored in the storage device, and the mobile communication of the second user. Send to the terminal.

The mobile communication terminal of the second user transmits the location-based situation information to the location-based alarm device 140 using short-range wireless communication or wired communication, and the location-based alarm device 140 transmits the received information to voice and text. Or output in the form of an image, to notify the second user.

The system configuration of the location based alerting devices 110 and 140 shown in FIG. 1 will be described in detail later with reference to related drawings.

2 is a system configuration diagram showing a location-based alarm device according to a preferred embodiment of the present invention.

Referring to FIG. 2, the location-based alarm device 110-see FIG. 1 includes a mobile communication terminal 112 and a location-based alarm device 114-1 as described above. May be referred to as).

The location-based alarm device 114 may include a GPS receiver 150, an inputter 160, a controller 170, a transceiver 180, a storage 190, a display 200, an output 210, and the like. Can be. In addition, it may further include a power supply for supplying energy for the operation of the location-based alarm device 114.

The GPS receiver 150 receives a position from the GPS satellite 120, and the received position is provided as a reference coordinate called WGS84.

The input unit 160 performs a target selection input of context information, data transmission and reception through an external communication network, and may be provided in the form of a keypad or a touch screen.

The controller 170 controls the devices provided in the location-based alarm device 114 and interoperates with each other. A detailed description thereof will be provided in the system description using FIG. 2.

The transceiver 180 is a device for transmitting and receiving location and / or situation information with the mobile communication terminal 112. Information transmission and reception between the mobile communication terminal 112 and the location-based alarm device 114 may be wired communication or RS232 communication. Wireless communication can be used.

For a brief description of RS-232 communications, the Dallas DS5002FP configured with 8051 cores has RxD (P3.0: pin 31), TxD (P3.1: 36 pin), half duplex in synchronous mode, and asynchronous mode. There is one communication serial I / O port (UART) for full duplex communication. It uses this port to transmit and monitor programs, and to send and receive data from modem as well as 485 communication.

There are two main types of communication between the DS5002FP and the target board via RS232, one for loading the program by Bootstrap Loader and the other for controlling or communicating with the target board. It is.

The storage unit 190 may store terrain or map information required for outputting the corresponding information when specific information is received from a program performed by the controller or a location-based contextual information providing server.

The program or terrain or map information stored in the storage 190 may be updated in real time from a location-based contextual information providing server through a communication network, or may be updated in combination with an external device such as a computer.

In addition, when there is a missing map or terrain information in this case, it is possible to request the update of the corresponding information at the request of the user.

Each of the information stored in the storage 190 includes updated date and time information, so that the user can easily check whether the information is up-to-date.

The display unit 200 and the output unit 210 output position and / or situation information transmitted from the location-based contextual information providing server, and the display unit 200 uses the terrain or map information stored in the text or storage unit. It may be output in the form of an image, the output unit 210 may be output in the form of voice or sound.

In addition, by using the output unit 210 or the like, the information providing apparatus 114 may also be used as a hands-free for a mobile communication terminal.

Hereinafter, the location-based alarm device of the present invention will be described using the system configuration diagram shown in FIG. 2.

First, the GPS receiver 150 receives a user's location in real time from the GPS satellite 120.

The location-based alerting device 114 uses the location received through the GPS receiver 150 to store the terrain 190 through a real-time coordinate matching operation under the control of the controller 170 for a terrain or a map corresponding to the corresponding location. By searching for a suitable map, the corresponding map (which may include the user's location) may be output to the display unit 200 in real time.

When the user moves through a vehicle equipped with the location-based alarm device 114, when an artificial obstacle is installed on a road at a specific location, or when a risk factor such as freezing or accident debris exists, the user inputs the input unit 160. Enter the relevant information.

In this case, the input unit 160 may be configured of a plurality of buttons and the like, and may input independent information for each button. For example, in the case of three buttons, the number 1 may be composed of an artificial obstacle, the number 2 may exist, the number 3 may be an accident, and the like.

In addition to the above, the present invention can also be used for traffic volume measurement. For example, in the case of three buttons, one can be configured to communicate smoothly, two to be congested, and three to prohibit entry.

When the present invention is used for measuring the traffic volume, conditions such as a distance for informing the corresponding information to other users may be different than the artificial obstacles described above.

The control unit 170 transmits the corresponding information input through the input unit to the mobile communication terminal 112 through the transceiver 180, the mobile communication terminal 112 is transmitted to the location-based contextual information providing server through the communication network The step of providing the base context information is completed.

Of course, in this case, in the case of using wireless communication, a separate transmitting and receiving unit capable of transmitting and receiving information with the corresponding transmitting and receiving unit 180 may be provided, and in the case of using wired communication, the mobile communication terminal is already provided for wired data communication. Can be performed via a connector.

In addition, when the user receives location-based contextual information input from another user and applies it in the case of driving, etc., first, the mobile communication terminal 112 receives the location-based contextual information (that is, the situation from the information providing server through the communication network). Information and / or location), and transmits the information to the transceiver 180.

The controller 170 performs a real-time coordinate matching operation using the location received through the transceiver 180, retrieves the terrain or map information corresponding to the location from the storage 190, and outputs it to the display unit 200. do.

The corresponding map output to the display unit 200 under the control of the controller 170 is displayed as a symbol (for example, O and X) that distinguishes the first position of the current user and the second position including the situation information, respectively. Can be done.

In addition, when the corresponding information received through the transmission and reception unit 170 is information on traffic conditions, the identification code included in the information (for example, smooth communication 1, a little congestion 2, when entry is prohibited 3) may be distinguished by colors on the corresponding road to enable the user's recognition.

The situation information may be additionally output in the form of voice or sound through the output unit 210 under the control of the controller.

Of course, when the output step in the form of text or image through the display unit 200 is omitted, independent output through the output unit 210 is also possible.

3 is a flowchart illustrating a method for transmitting location-based contextual information from a location-based alerting device to a location-based contextual information providing server according to a preferred embodiment of the present invention.

Referring to FIG. 3, in step 310, the location-based alarm device receives a location indicating a corresponding location in real time from a GPS satellite.

Of course, step 310 may further include starting operation (ie, power on) of the location-based alarm device or combining the location-based alarm device with the mobile communication terminal.

As described above with reference to FIG. 2, when the location-based alarm device outputs the location-based situation information of the corresponding user as a map or the like through the display unit of the location-based alarm device, the location-based alarm device is outputted from the location-based alarm device. The method may further include converting to perform a corresponding operation, searching for a map corresponding to the location in the storage unit, displaying a location of the corresponding user in the searched map, and outputting the same.

In operation 320, the location-based alarm device determines whether specific situation information (eg, artificial obstacles, accident debris, etc.) corresponding to the corresponding location is input by using an input unit of the location-based alarm device.

If the specific situation information is input as a result of the check in step 320, the flow proceeds to step 330, and if not, the flow proceeds to step 350.

In operation 330, the location-based alarm device converts the location received in operation 310 and the situation information input in operation 320 into a form suitable for transmission to the location-based context information providing server.

In this case, the contextual information input through step 320 may further include converting the contextual information into a form recognizable by the location-based contextual information providing server.

For example, in the case where the location-based alarm device is mass-produced and provided to a vehicle of a plurality of users, when the location-based alarm device is set in advance to include the same information for each button of the input unit of the location-based alarm device, Even if only the button information is transmitted to the location-based contextual information providing server, it is possible to accurately recognize what kind of contextual information is provided by the location-based contextual information providing server.

However, the contextual information to be provided and the contextual information not to be provided to each user may be different.

In this case, not only satisfying all users or considering convenience of operation of the location-based contextual information providing server but also considering the ease of use of corresponding users, each user may be configured to recognize specific contextual information on a specific button. It can be provided with additional functions that can be.

Therefore, when such a function is applied, the location-based contextual information providing server cannot recognize exactly what information is included by recognizing only the button selection information for the contextual information transmitted from each location-based alerting device.

Therefore, in this case, when the user selects a particular button from the input unit, the location-based alarm device recognizes what situation information the button represents, and may further include generating an identification code indicating the situation information. have.

Of course, even when only the button selection information is transmitted from the location-based alarm device as described above, the information is not transmitted as the corresponding button selection information, that is, selection information such as 1, 2, 3, and the like. It can also be sent to the status information providing server.

In operation 340, the location-based alarm device transmits the converted location-based contextual information (that is, the contextual information and the location, etc.) through the communication network to the location-based contextual information providing server in operation 330.

The method of transmitting the location-based contextual information to the location-based contextual information providing server through step 340 may be variously applied according to the configuration method of the location-based alerting apparatus. Of these various methods, only two methods that are generally easy to use will be described.

First, a method of constructing a transceiver for transmitting specific information in combination with an external communication network in a location-based alarm device. When using this method, the location-based alarm device itself can transmit the information directly to the location-based context information providing server. have.

Second, the location-based alerting device is a method of configuring only the role of receiving a location and inputting situation information, etc., which is the same as the method described above with reference to FIG. 2.

In the case of applying this method, location or situation information received or input through a location-based alarm device is converted into information that can be transmitted through a communication network, and then a wireless communication network (for example, RS232, etc.) or a wired cable. It is transmitted to the mobile communication terminal using a (cable), it can be transmitted to the location-based context information providing server using a transmission function provided in the mobile communication terminal.

Referring back to step 320, if the situation information is not input from the user, the process proceeds to step 350, after converting the location of the user, and proceeds to step 360 transmits the information to the location-based context information providing server. .

Since steps 350 and 360 are similar to the descriptions of steps 330 and 340 described above, detailed descriptions thereof will be omitted.

In addition, steps 350 and 360 may be performed by a user's selection or default setting of the location-based alarm device, so that when the situation information is not input, the location is not transmitted to the location-based situation information providing server in real time. You may.

In step 370, the location-based alarm device checks whether the operation termination request information of the location-based alarm device (eg, power off of the location-based alarm device, separation of the mobile communication terminal and the location-based alarm device, etc.) is input from the user. do.

If the operation termination request information is not input from the user through the check of step 370, the process proceeds to step 310, and the reception of the position from the GPS satellite is continued.

4 is a flowchart illustrating a method for transmitting location-based contextual information from a location-based contextual information providing server to a location-based alerting apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 4, in step 410, the location-based contextual information providing server determines whether location-based contextual information (that is, location and / or contextual information, etc.) is received from a location-based alerting device equipped with a plurality of users through a communication network. Check it.

If the location-based contextual information is received from the specific location-based alerting device through the inspection of step 410, the process proceeds to step 420 and stores the location-based contextual information in the storage device. Otherwise, the process proceeds to step 430.

In step 420, the method of storing the location-based contextual information may be configured by dividing the location-based contextual information into location and contextual information to form a link relationship therebetween, and then storing the location-based contextual information in an independent storage area or storing the location-based contextual information. It is possible to apply a method of storing it separately from other location-based contextual information in the domain.

In operation 430, the location-based contextual information providing server receives a location transmitted from the location-based alarm device through a communication network.

As described above with reference to FIG. 4, the steps after receiving the location may be omitted in the case of selection of the corresponding location user or transmission stop of the default location.

In operation 440, the location-based contextual information providing server searches whether a location previously stored in the storage device corresponds to a location transmitted from the location-based alarm device.

In searching for a specific location in step 440, a predetermined condition (e.g., street, road, up or down line, etc.) is added to the location received from the specific location based alarm device, and then the corresponding location is stored via the storage device. You can also search for.

In step 450, the location-based contextual information providing server checks whether the location of the user received in step 430 and the location retrieved in step 440 meet a predetermined condition.

In the case where the inspection is possible through step 450, the case can be described by using a predetermined condition such as a distance (for example, 2 km, etc.) and a road (for example, the same road, etc.) and a direction (for example, a location stored in a storage device). If the position coordinates of the user are satisfied as a distance of about 2 km in terms of the position and distance retrieved from the storage device, the direction of travel of the vehicle is far from the position coordinates stored in the storage device. In the case of a direction, the situation information may not be transmitted.

As a result of the check in step 450, if the two locations meet the predetermined condition, the process proceeds to step 460; otherwise, the process proceeds to step 480.

In operation 460, the location-based contextual information providing server searches for situation information corresponding to the location searched through operation 440.

When the situation information and the location are stored in the same area, the situation information stored in the same area is searched. If the situation information and the location are stored in the same area, the situation information stored in the other area is independently stored in a link relationship. If so, you can use the link to retrieve the appropriate contextual information.

In step 470, the location-based contextual information providing server transmits the location-based contextual information (that is, the location retrieved through the step 440 and the contextual information retrieved through the step 460) to the location-based alarm device through the communication network.

In this case, when the mobile communication terminal performs a communication function with an external communication network, the mobile communication terminal may transmit the communication function to the mobile communication terminal combined with the location-based alarm device instead of transmitting the location-based alarm device.

When the information is transmitted from the location-based contextual information providing server to the location-based alarm device or the mobile communication terminal, the information is transmitted through a separate device (for example, a short message server) capable of transmitting a specific message to the mobile communication terminal. In this case, an interworking function (IWF) may be added and used.

In step 480, the location-based contextual information providing server checks whether a location is received from the location-based alarm device, and if the location is received, proceeds to step 410 to repeat the above-described steps, and if not, step To exit.

5 is a flowchart illustrating a method for outputting location-based contextual information received from a location-based contextual information providing server according to a preferred embodiment of the present invention.

In describing the method for outputting location-based contextual information received from the location-based contextual information providing server with reference to FIG. 5, two locations are required.

That is, one is a location indicating the location of the location-based alerting device provided by the user, and the other is a location received from the location-based contextual information providing server through a communication network.

To distinguish between the following, each of the following descriptions is referred to as a first location (ie, a location indicating a location of the user's location-based alarm device) and a second location (ie, a location received from the location-based contextual information providing server). Shall be.

Referring to FIG. 5, in step 510, the location-based alarm device receives a first location indicating a location of a location-based alarm device of a corresponding user transmitted from a GPS satellite.

In step 520, the location-based alarm device should output the first location received in step 510 through the display unit of the location-based alarm device (for example, output using a map or terrain information stored in the storage device). Examine whether or not.

The outputting of the first location received in operation 510 through the display unit of the location-based alarm device may be performed through user selection or default setting of the location-based alarm device.

If it is necessary to output the first position received through step 510 through the display unit as a result of the check in step 520, the flow proceeds to step 530, and if not, the flow proceeds to step 550.

In operation 530, the location-based alarm device retrieves a map or terrain information including a location coordinate corresponding to the location received in operation 510 from the storage unit, and proceeds to operation 540 to perform operation 530 on the corresponding position received in operation 510. After displaying in the map or terrain information retrieved through the output through the display.

If the corresponding map or terrain information is not retrieved through step 530, the request for providing the map or terrain information is provided to the location-based context information providing server in real time, and the information is received and stored in the storage unit. It may include.

In operation 550, the location-based alarm device checks whether location-based contextual information (ie, including contextual information and / or a second location, etc.) is received from the location-based contextual information providing server.

If location-based contextual information is received through the inspection of step 550, the flow proceeds to step 560, and if not, the flow proceeds to step 620.

In step 560, the location-based alerting device checks whether the location-based contextual information received from the location-based contextual information providing server should be output in a map format. The description of step 560 is similar to that of step 520 described above, and thus description thereof is omitted herein.

If the result of the check in step 560 is to be output in the map format, the flow proceeds to step 570, and if not, the flow proceeds to step 590.

In operation 570, the location-based alerting apparatus searches for the map information corresponding to the location from the storage by using the second location received from the location-based contextual information providing server.

In operation 580, the location-based alarm device displays the corresponding second location in the map information searched through operation 580, and outputs the corresponding map information through the display unit.

If the inspection at steps 520 and 560 is performed to output using map or terrain information, the application symbols may be different from the first position displayed at step 540 and the second position displayed at step 580. It can be distinguished by using a method such as.

Referring back to step 560, if it is set not to output in map format, the flow proceeds to step 590 to output the location-based contextual information using voice (i.e., the second location (e.g. place name or approximate name). Location, etc.) and / or situational information (e.g., 'There are artificial obstacles, drive safely, etc.'). Check it.

The method of outputting the corresponding information by voice may also be performed through user selection or default setting of the location-based alarm device.

As a result of the check in step 590, if output using voice is requested, the process proceeds to step 600; otherwise, the process proceeds to step 620.

In step 600, the location-based alarm device converts the location-based situation information received from the location-based situation information providing server into a voice form according to a predetermined method, and then proceeds to step 610 to output the converted location-based situation information through the output unit. do.

In this case, for example, the output of a car accident is scattered in the 1km ahead. Please drive safely. ' It may also include both the second location and the situation information in the form of.

Referring to steps 560 to 610, the method for providing location-based contextual information to a user through the present invention may be output in a map form through a display unit or in a voice form through an output unit. Although shown, a more preferred form may be applied in parallel to the two output methods.

In step 620, the alarm providing apparatus checks whether the user's first location is received from the GPS satellite, and if so, proceeds to step 510 to repeat the plurality of steps described above. Quit.

In the following description of the present invention, a mobile communication terminal is described as an example of a communication device combined with a location-based alarm device, but in addition to the mobile communication terminal, data communication is possible with the location-based alarm device, and the location-based situation is connected to an external communication network. Any device can be applied as long as it can be connected to the information providing server.

That is, for example, in addition to a mobile communication terminal, a computer (for example, a notebook, a desktop, etc.), a PDA terminal, etc. can also be used.

6 is an external view illustrating a front surface of a location-based alarm device according to a preferred embodiment of the present invention.

Referring to FIG. 6, the location-based alarm device may include a display unit 710, a situation information input button 720, a function selection input button 730, and the like.

The display unit 710 may be configured in the form of liquid crystal or the like, and the user may download or upload a state indicating an update process of a program or map information stored in the storage unit through the display unit 710. Can be identified.

In addition, the display unit 710 may output the corresponding information in the form of a map by using the position received from the GPS satellite and the position or situation information received from the location-based contextual information providing server.

The situation information input button 720 may be set as a default in the case of general situation information (for example, an emergency, a traffic jam, an accident, an emergency rescue, etc.), or may be designated by a user, and corresponds to a specific situation information occurrence. By selecting the button, the information can be transmitted to the location-based context information providing server.

The function selection input button 730 is provided to request map information that is not stored in the user's location-based alarm device or to change the setting of the location-based alarm device according to the user's intention.

In addition, the location-based alerting device may have a combined position or a coupling device for coupling with an external device such as a mobile communication terminal, a computer PDA, etc., on the top, bottom or side of the location-based alerting device, and receives a position from a GPS satellite. It may further include a receiver (for example, an antenna, etc.) for.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, the present invention provides safe, fast and convenient location movement to a plurality of users by providing dangerous information such as risk factors and artificial obstacles to a specific point transmitted from a specific user to a plurality of users close to the corresponding point. You can do that.

In addition, the location-based contextual information providing system may receive the location-based contextual information provided from a specific user and provide the location-based contextual information to the corresponding user.

In addition, there is no need to provide expensive equipment for transmitting and receiving information of a specific point between a plurality of users, it is economical.

Claims (18)

In the method for providing location-based context information to the user using a communication network, Receiving the location based contextual information from at least one location based alerting device; When the received location-based contextual information includes the location and the contextual information, dividing the location and the contextual information; Storing the contextual information corresponding to the location; Receiving a location of the location based alarm device from the location based alarm device of the user; Retrieving contextual information corresponding to the retrieved location from the stored at least one contextual information; Transmitting the retrieved situation information to the location based alerting device. Including but not limited to: The contextual information includes at least one of physical information and personal information that you want to share in correspondence with the location. Location-based context information providing method using a communication network characterized in that. The method of claim 1, Searching for a location corresponding to the location of the received location-based alarm device, Searching for a location that satisfies a predetermined condition when using the location of the received location-based alarm device among at least one previously stored location; Location-based context information providing method using a communication network characterized in that. The method of claim 2, The predetermined condition is At least one of the distance between the plurality of positions, the direction of movement, and the movement route can be considered Location-based context information providing method using a communication network characterized in that. The method of claim 1, The location based alarm device, Can be combined with an external device including at least one of a mobile communication terminal, a computer, a PDA Location-based context information providing method using a communication network characterized in that. The method of claim 1, The communication network is at least one of a wired communication network and a wireless communication network Location-based context information providing method using a communication network characterized in that. In the method for providing location-based contextual information using a location-based alarm device, in order to share location-based contextual information between a plurality of users using a communication network, Receiving a location indicating a location of the location based alarm device from a location information providing device; Receiving context information from the user; Converting the location and the contextual information into a form for transmission; Transmitting the location and the contextual information to at least one of an external device and a location-based contextual information providing server through a communication network. Location-based contextual information sharing method using a communication network comprising a. The method of claim 6, Pre-store at least one map corresponding to the at least one location-based contextual information; Searching for a map corresponding to the received location among pre-stored maps; Outputting the searched map to a display unit; Location-based contextual information sharing method using a communication network further comprising. The method of claim 7, wherein The outputting of the searched map on the display unit may include: Being able to display and output the received location on the map Location-based contextual information sharing method using a communication network characterized in that. The method of claim 6, Storing at least one identification code corresponding to the at least one piece of context information in advance; Searching for an identification code corresponding to the received situation information among the previously stored identification codes; Location-based contextual information sharing method using a communication network further comprising. The method of claim 6, The external device, Transmitting the location and the contextual information received from the location-based alerting device to the location-based contextual information providing server in real time Location-based contextual information sharing method using a communication network characterized in that. In the method of receiving the situation information corresponding to a specific location using a communication network, Receiving a first location indicating a location of a user's location based alarm device from the location information providing device; Transmitting the received first location to at least one of an external device and a location-based contextual information providing server; Receiving location-based contextual information from the external device and the location-based contextual information providing server, wherein the location-based contextual information includes a second location and contextual information corresponding to the second location; Outputting context information corresponding to the second location Location-based contextual information using the communication network comprising a. The method of claim 11, Pre-store at least one map corresponding to the at least one location-based contextual information; Retrieving a map corresponding to the received second location from a pre-stored map; Outputting the searched map to a display unit; Location-based contextual information using the communication network further comprising a. The method of claim 12, The outputting of the searched map on the display unit may include: Capable of distinguishing and outputting the first location and the second location so as to be identified on the map, respectively; Location-based contextual information using a communication network characterized in that. The method of claim 11, Outputting the situation information corresponding to the second location, Converting the situation information into at least one of a warning sound, a voice, a sound, and an image; Outputting the converted situation information Location-based contextual information using the communication network comprising a. The method according to claim 11 or 14, The situation information can be received in the form of a predetermined identification code Location-based contextual information using a communication network characterized in that. The method of claim 11, The location information providing apparatus, At least one of satellites, base stations, and repeaters Location-based contextual information using a communication network characterized in that. In the location-based alerting device to enable the sharing of the situation information using a communication network, A location receiver configured to receive a location of the location based alarm device from a location providing device; An input unit for performing object selection input of context information and data transmission / reception through an external communication network; An external device, a transmission / reception unit configured to transmit and receive at least one of location and situation information and at least one of a server based on location information; A storage unit for storing at least one map; A display unit configured to output at least one of context information and a position in at least one of a text form and an image form; Output unit for outputting at least one of the status information, the position to at least one of the voice and sound Location-based alarm device comprising a. A memory in which a program is stored; A processor coupled to the memory to execute the program Including but not limited to: The processor by the program, Receiving the location based contextual information from at least one location based alerting device; When the received location-based contextual information includes the location and the contextual information, dividing the location and the contextual information; Storing the contextual information corresponding to the location; Receiving a location of the location based alarm device from the location based alarm device of the user; Retrieving a location corresponding to the location of the received location-based alarm device from at least one previously stored location; Retrieving contextual information corresponding to the retrieved location from the stored at least one contextual information; Transmitting the retrieved situation information to the location based alerting device. Location-based contextual information providing apparatus using a communication network, characterized in that for executing.