KR100406003B1 - A portable individual digital assistant having a location aware function - Google Patents

Abstract

The present invention relates to a personal mobile terminal having a location recognition function, and in particular, to a terminal having a location recognition function additionally added to a location recognition unit consisting of a receiving unit and a location extraction unit in the existing personal portable terminal and a program capable of controlling the same. It is about.

The present invention is installed in a location where one or more locations of a room are known and located in a guide information providing area using a wireless signal transmitter for transmitting location-aware wireless data and a wireless signal included in a signal received from the wireless signal transmitter. It provides a personal portable terminal that extracts the user's location information and provides the user with previously stored guide information based on the location information.

Description

Personal handheld terminal with location recognition function {A PORTABLE INDIVIDUAL DIGITAL ASSISTANT HAVING A LOCATION AWARE FUNCTION}

The present invention relates to a personal handheld terminal having a location recognition function, and in particular, a location recognition unit comprising a receiver and a location extracting unit to a conventional personal handheld terminal (hereinafter referred to as a terminal) and a position recognition program additionally added thereto. It relates to a terminal having a function.

Recently, due to the development of information and communication technology, the spread of small and portable mobile computing terminals such as PDAs or Post PCs has been rapidly spread, and now, personalized personal belongings have been made. Accordingly, each terminal producer or software developer is developing a new add-on device and model to the terminal in response to the customer's demand for increased usability.

Computing technology is developing from the construction of machine-oriented environment, that is, convenient user environment and user interface environment, to the construction of human-centered environment, that is, interface environment with external environment information (location, temperature, direction, sound, etc.). In particular, the development of various services based on location information is being actively performed.

However, the conventional location recognition technology and location information service are concentrated in a wide range of outdoor areas using GPS (Global Positioning System) or mobile phone network. Such technologies and services include indoor and outdoor areas such as museums, exhibition halls, art galleries, etc. In outdoor specific areas with a lot of obstacles, normal location information-based services cannot be provided due to the increased difficulty of receiving satellite signals, increased external noise, increased multipath of cellular radio signals, and increased fading effects.

In addition, conventionally, in order to automate guide guidance indoors, the FM frequency is modulated according to a desired area and a certain area of an exhibition, and a receiver automatically searches for a transmission frequency to perform voice guidance and a unique ID. There is a method of guiding the pre-recorded voice information in a separate receiving device by attaching a high frequency recognition and infrared device that transmits continuously. In this way, technologies and devices have a proportional increase in the cost according to the number of exhibits and spaces, difficulty in adjusting the recognition range, error generation due to overlapping mutual interference, and time setting for communication between one transmitter and multiple receivers. And there is an operational problem with the method member, the difficulty of maintenance after installation.

Accordingly, an object of the present invention is to provide a personal portable terminal having a location recognition function in a guide information providing area in a room by embedding a separate location recognition unit to solve the problems of the prior art.

Another object of the present invention is to provide a personal handheld terminal having a location recognition function in a guide information providing area indoors by implementing a location extractor by software in a terminal having a built-in or equipped wireless data communication device.

Still another object of the present invention is to provide a personal portable terminal having a location recognition function in a guide information providing area in a room where the location recognition unit and the terminal are connected from the outside.

In order to achieve the above object, according to the present invention, a radio wave transmitted from a radio signal transmitting apparatus that is fixedly installed in a specific place where one or more locations of a room are known, and has a unique identification ID and transmits a low power location recognition radio signal. In the personal mobile terminal that provides the guide information automatically by using,

A wireless signal receiver for receiving a position recognition wireless signal;

A location information extraction unit for extracting location information of the reception unit by using the wireless signal received by the reception unit;

A guide information storage unit for storing guide information classified by location information extracted by the location information extraction unit;

A control unit for selecting guide information stored in the guide information storage unit by using the location information extracted by the location information extracting unit and controlling reproduction of the selected guide information and output of the reproduced guide information;

An input unit for inputting a control signal to the controller;

And an output unit for outputting position information extracted from the position information extracting unit and guide information selected and reproduced by the control unit in the form of voice, text, video, and a combination thereof according to the signal input to the input unit. Provides a personal handset with location recognition.

These and other objects, advantages and features of the present invention will become more apparent from the following description set forth in connection with the accompanying drawings.

1 is a first embodiment of a personal portable terminal having a location recognition function according to the present invention.

Figure 2 is a second embodiment of a personal portable terminal having a location recognition function according to the present invention.

3 is a third embodiment of a personal portable terminal having a location recognition function according to the present invention.

Figure 4 is a fourth embodiment of a personal portable terminal having a location recognition function according to the present invention.

5 is a fifth embodiment of a personal portable terminal having a location recognition function according to the present invention.

6 is a sixth embodiment of a personal mobile terminal having a location recognition function according to the present invention.

7 is a seventh embodiment of a personal portable terminal having a location recognition function according to the present invention.

8 is an output screen configuration diagram of a personal mobile terminal having a location recognition function according to the present invention.

*** Explanation of symbols for main parts of drawing ***

100: wireless signal transmitter 120: position recognition wireless signal receiver

130: location information transmitter 150: location information transmitter

200: terminal 210: location recognition unit

215: guide information player 220: wireless signal receiver

230: location information extraction unit 235: wireless signal transmission unit

240: player control unit 250: storage unit

260: input unit 270: output unit

280: external circuit connection portion 290: circuit connection portion outside the player

300: wireless data transceiver 400: menu portion

500: information display

1 is a first embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 1, a first embodiment of a personal handheld terminal having a location recognition function according to the present invention is a wireless signal receiver 220 for receiving a location recognition radio signal, and extracts location information using the radio signal. Displays the location information extraction unit 230, the control unit 240 for controlling the operation of the terminal 200, the storage unit 250 for storing the guide information, the input unit 260 for inputting a control signal, the location information and guide information Is composed of an output unit 270.

The location-aware wireless signal transmitter 100 is fixedly installed at a specific place where one or more locations of a specified floor of a room are known, and each transmitter transmits an ID (ID) distinct from other transmitters alone. The position recognition radio signal is periodically transmitted by combining information such as the transmission time and the number of transmissions together with the ID information. In addition, when the interior has a structure of two or more stories above ground or underground, it is preferable to be fixedly installed at a specific place where one or more positions are known for each floor. The position recognition radio signal transmitter 100 preferably transmits a small power position recognition radio signal having a transmission power of 1 W or less to minimize power consumption and influence of reflected waves on the outer wall, thereby minimizing multipath propagation of radio waves. Do. In addition, the transmission wave has a unique position recognition frequency, and preferably has a frequency of 150 MHz to 650 MHz. This frequency band takes into account the economics of the system implementation. In general, location recognition technology is concentrated in a wide range of outdoor areas using GPS or cell phone networks. The former uses radio waves in the 2 GHz band and the latter uses frequencies in the 800 MHz to 1.2 GHz band. This is because the higher the accuracy, the more disadvantageous the manufacturing cost of the system. On the other hand, since the conventional technology targets the outdoor area, it is not appropriate to provide location-based services indoors with the conventional technology because there is no need to consider the special situation of the indoor. In other words, as a result of the drastic reduction of the satellite signal reception signal due to the outer wall surrounding the room and the increase of the S / N ratio according to the result, the increase of the multipath of the cellular radio signal due to the reflected wave and the increase of the fading effect. You will not be able to provide normal services with Therefore, the location information extracting unit 230 according to the present invention extracts the location information by using the wireless signal received from the radio signal transmitter, mathematically able to provide accurate location-based services in the room in consideration of the special situation of the room It is desirable to operate by algorithms based on modeling and experimentation. In addition, the radio signal transmitter 100 for at least one receiver should be provided at at least one different position previously known, and more accurate position information can be obtained as the number of transmitters increases. It is preferable to be provided at three or more different positions which are preferable. If it is provided as 1 or 2, it is easy to be limited to the area-based service having a radius as the distance. However, when provided as 3 or more, the location information can be accurately obtained by using triangulation. On the other hand, even if 5 or more provided the accuracy is higher, but the synergy effect of the accuracy is insignificant compared to the case provided with three or four.

The terminal 200 displays the pre-stored guide information as voice, video, text, etc. according to the location of the user in the guide information providing area based on the location information. The terminal 200 according to the present invention is an existing terminal, preferably a wireless signal receiver 220, control unit 240, storage unit 250, input unit 260, output unit 270 already provided in the PDA, etc. In addition, the configuration further includes a location information extraction unit 230 according to the present invention.

The radio signal receiving unit 220 receives the location recognition radio signal transmitted from the location recognition radio signal transmitter 100, demodulates and decodes the converted signal into a wired signal, and time difference or intensity information of the received radio signal. Is extracted and processed as an input of the location information extraction unit 230. The conversion into a wired signal is to process the digital information by converting the time information or the intensity information of the radio wave received from the receiver 220 into digital information.

The location information extracting unit 230 extracts the location information of the user by using the radio signal transmitted from the location recognition radio signal transmitter 100. The location information of the user includes the location on the plane, the location of the floor, the division of the building, etc .. If the interior is a single floor, it may be represented by two-dimensional plane coordinates, and in the case of a multi-layered space, three-dimensional spatial coordinates. In addition, information such as time may be added and provided. This location information is obtained from the information of the location-aware radio signal. The information of the radio signal that can be used to obtain the location information includes the difference between the transmission time and the reception time or the strength of the reception radio wave. In order to obtain more accurate location information, first, distance information between each transmitting apparatus 100 and the terminal 200 should be obtained. Such distance information may be obtained by visual difference or intensity of radio waves or a combination thereof. It is already known to use a radio wave to obtain a distance from a transmitting device to a specific point on a plane or space, and the position from the radio signal transmitting device 100 based on a natural fact that a radio wave propagation speed is constant. The distance from the transmitter 100 may be measured by extracting distance information based on a difference between a transmission time of a recognition radio signal and a reception time of the terminal 200. Alternatively, distance information may be obtained using the strength of received radio waves at each location. After obtaining the distance information, the position information may be obtained by using distance information of 1 or 2, but it is preferable that at least three transmitting apparatuses 100 for position recognition may be provided to use a triangulation method. In order to effectively utilize the location information indoors, the distance error, which is a difference between the coordinate value of the specific location and the measured value therein, is preferably within a range of at least 5 m in consideration of the compactness of the object. Therefore, in case of civil GPS, the range error is within 200m, so it is not practical indoors. In the case of GPS, DGPS (Diferential GPS) is used to reflect the data corrected using the difference between the coordinates of a specific location and the measured value there. The problem is that in order to use the DGPS, a separate transmission device must be provided on the ground, and the error range after the correction is within 5 m. However, the distance error by the location information extraction unit 230 according to the present invention has a error range of 2 m to 4 m or more with a probability of 90% or more when the position correction is not performed, and when the correction is performed within 1 m to 30 cm. It can also have a range. In the case of position correction, unlike DGPS, it can be implemented in pure software without any additional device, which is advantageous in terms of manufacturing cost.

The distance information is based on the arrival time or propagation of the radio wave, using the radio signal received from the radio signal receiver 220, the distance between each location-aware radio signal transmitter 100 and the radio signal receiver 220 of the terminal 200. It is obtained by calculating using the intensity of.

The location information is obtained by using the distance information. In particular, when three or more position recognition radio signal transmitters 100 are provided, the location information is obtained by triangulation. If position correction is necessary, position information after correction is obtained.

On the other hand, the position information extracting unit 230 according to the present invention is the main portion of the terminal circuit (includes one or more of the input unit, output unit, control unit, internal system bus, data bus, host interface, semiconductor chip coupling and connection circuit unit) These electrical connections are connected by means of PCB patterns, by wire, by wire, by soldering and by conductors.

The controller 240 selects the guide information stored in the guide information storage unit 250 using the location information extracted by the location information extractor 230 and controls the reproduction of the selected guide information and the output of the reproduced guide information. . In addition, by operating from the input unit 260, it controls the playback method of the guide information by automatic, playback, pause, stop, volume control, and the like, the output method of the guide information by voice, text, video, etc., the wireless signal receiver and The location information extraction unit is controlled to determine whether location information is extracted. The controller 240 typically includes a CPU or a microprocessor and is driven by a drive program stored in the storage unit.

The storage unit 250 stores the guide information divided by the location information extracted by the location information extraction unit 230. The guide information is stored as audio, video, text and graphic information. Therefore, in order to store a lot of information in a limited storage space, it is desirable to compress and store the guide information. In addition, the guide information is classified and stored according to the location of each guide object, and even the same guide information is stored according to the classification criteria such as grade, language, and the like. A program for operating the control unit, for example, a control command input / output module that can control the operation of the location information extracting unit 230, a processing and correction module for location information, and reproduction of voice, video, text, and graphic information to be expressed according to the location. The module and the like are stored in the storage 250.

The input unit 260 inputs a control signal to the control unit 240. The input control signal drives the control unit 240 through a program stored in the storage unit 250 so that the terminal 200 executes a user's designated command. The input means includes a device that allows a user to input a command in a contact or non-contact form, such as a voice recognition module having an electronic pen, a shortcut button, a keyboard, a touch screen, a mouse, and a microphone.

The output unit 270 uses voice, text, video, and combinations of the location information extracted from the location information extracting unit 230 and the guide information selected and reproduced by the control unit 240 according to a signal input from the input unit 260. Will print Such means include black and white or color LCDs for video output, LEDs, organic ELs, PDPs, and speaker and headphone jacks for audio output.

Referring to the operation of the personal mobile terminal according to the first embodiment of the present invention.

First, the user receives the terminal 200 according to the present invention and enters the area where the guide object is displayed. Upon entering, the terminal 200 receives a location-aware radio signal transmitted from the radio signal transmitting apparatus 100. Using this radio signal, the terminal 200 receives location information represented by coordinates of a location at the current location. Extract. The control unit 240 reads the location information, selects and plays back the guide information matching the location information in the storage unit 250, and the reproduced guide information is automatically or selectively listened to or viewed by the output unit 270. Can be. As the user moves the location, the location information is continuously extracted and corresponding guide information is continuously provided. If the user wants to repeat playback, the input unit 260 may input a repeat playback signal, and in this case, the control unit 240 may have played back in parallel with the operation of the wireless signal receiver 220 or the location information extraction unit 230. The information is reproduced and output again. On the other hand, even if the guide information for the same object, the user may select the playback grade, the playback language, and additionally obtain the appropriate guide information by operating the input unit 260.

Figure 2 is a second embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 2, a second embodiment of a personal terminal having a location recognition function according to the present invention is a wireless signal receiver 220 for receiving a location recognition radio signal, and extracts location information using the radio signal. Displays the location information extraction unit 230, the control unit 240 for controlling the operation of the terminal 200, the storage unit 250 for storing the guide information, the input unit 260 for inputting a control signal, the location information and guide information The output unit 270 and the external circuit connection unit 280 for exchanging information with the external circuit and a separate wireless data communication transceiver 300 is connected to the external circuit connection unit 280 of the terminal 200 It is making up.

The external circuit connection unit 280 is connected to an external circuit of the terminal 200 to provide a function for exchanging information with the control unit 240, and electrically connected to the terminal (wireless communication, infrared communication, wireless communication, etc.) It refers to PCMCIA (Personal Computer Memory Card Interface Association), Compact Flash, USB (Universal Serial Bus), Serial and IrDA (Infrared Data Association) ports.

The wireless data communication transceiver 300 transmits and receives a wireless signal for wireless data communication. Such a device includes a wireless LAN (Bluetooth), an infrared communication, and the like. When the transceiver 300 for wireless data communication is connected to the external circuit connection unit 280, the user uses the terminal 200. According to the position recognition radio signal transmitting apparatus 100 according to the frequency of the position recognition radio signal propagated by using a different frequency it is possible to perform wireless data communication. That is, the position recognition radio signal is received by the terminal 200 from the radio signal receiver 210 and receives the guide information according to the location information. The radio data communication radio signal is transmitted from the radio data transceiver 300 through an external circuit connection. When received by the terminal, the control unit 240 according to the present invention may allow the terminal according to the present invention to be used as a normal wireless data communication means in parallel with the operation of the wireless signal receiving unit 210 or the location information extracting unit 230. The same applies to a case where a user directly transmits a wireless data radio signal using the terminal 200 according to the present invention. In this case, the wireless signal for wireless data communication is distinguished from the location-aware radio signal transmitted from the position recognition radio signal transmitter 100 according to the present invention, and the wireless data transmission connected to a computer system (not shown) outside the terminal. It is transmitted from a device or a transmitting device of another user's terminal. When the user exchanges information with computer systems (not shown) outside the terminal 200 by using the wireless data communication transceiver 300, for example, the organizer sends an inquiry to the SMS (Short Message Service). Can be inquired and information can be obtained through a computer system (not shown) outside the terminal. In addition, emergency occurrence information such as fire can be obtained through an external computer system (not shown). In this case, the control unit 240 outputs only the situation information by canceling or attenuating the volume of the guide information to be reproduced or superimposed on the current display screen, so that the output unit controls the situation information.

When a user exchanges information with another terminal using the wireless data communication transceiver 300, information such as an e-mail service, a gathering place using SMS, a meeting place appointment time, etc. with other users who are companions in the guide information providing area. For example, if you exchange the. As such, when the use of the terminal 200 according to the present invention is used as a means other than the purpose for obtaining the guide information, using the structure of such a system, it is possible to share the existing computerized information resources, and to purchase goods, customer trend analysis, and post. It is possible to provide a variety of new services such as marketing, it is possible to deliver the situation information in the event of an emergency, it is possible to perform two-way communication with each other during the viewing.

3 is a third embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 3, a third embodiment of a personal terminal having a location recognition function according to the present invention is a wireless signal receiver 220 for receiving a location recognition radio signal, and extracts location information using the radio signal. Location information extraction unit 230, a wireless signal transmission unit 235 for transmitting a radio signal for wireless data communication, a control unit 240 for controlling the operation of the terminal 200, a storage unit 250 for storing the guide information, control An input unit 260 for inputting a signal, and an output unit 270 for displaying position information and guide information.

The radio signal receiver 220 receives the location recognition radio signal transmitted from the location recognition radio signal transmitter 100, demodulates and decodes the signal and converts it into a wired signal, and time difference or intensity information of the received radio signal. Is extracted and processed as an input of the location information extraction unit 230.

In addition, by demodulating and decoding a wireless data communication signal transmitted from a wireless data transceiver 300 connected to a computer system outside the terminal 200 or a transmitting device (not shown) of another user's terminal, the location is converted into a wired signal. Processing is performed by the input of the information extraction unit 230.

The location information extracting unit 230 uses the output of the radio signal receiving unit 220 as input information, and the location recognition radio signal transmitter 100 and the radio signal receiver of the terminal 200 according to the information of the location recognition radio signal ( After obtaining the distance with the controller 220, the position information is obtained, and the received signal for wireless data communication, which is converted into a wired signal, is processed as an input of the controller 240.

The wireless signal transmitter 235 modulates and encodes a wired signal to convert and transmit the wireless signal to a wireless signal for wireless data communication.

As shown in FIG. 3, if the terminal 200 includes a wireless signal transmitter 300 for wireless data communication, the user may use the terminal 200 not only for general wireless data communication but also for location recognition according to the present invention. Can be. In this case, as described above, the frequency of the position recognition radio signal may be a frequency of 150 MHz to 650 MHz, as well as frequencies of 2 GHz to 6 GHz used for general wireless data communication. In the latter case, the location recognition and the wireless data communication frequency are the same. Since the location recognition radio signal includes the unique ID of the transmitting apparatus according to the present invention, the terminal 200 has the same location and the location recognition radio. The wireless signal for data communication can be distinguished.

That is, the present embodiment is a case where the position recognition frequency and the wireless data communication frequency are the same as in the case of the second embodiment, and as shown in FIG. 3 without the addition of a separate wireless data communication transceiver 300 (see FIG. The structure further includes a wireless signal transmitter 235 therein, so that the user can directly perform wireless data communication, thereby achieving the same effect as described above. The operation of the other components is the same as in the first embodiment.

Figure 4 is a fourth embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 4, a fourth embodiment of a personal mobile terminal having a location recognition function according to the present invention is an operation of a location information extraction unit 230 and a terminal 200 which extract location information using a location recognition radio signal. Control unit 240 for controlling the control unit, a storage unit 250 for storing the guide information, an input unit 260 for inputting a control signal, an output unit 270 for displaying position information and guide information, and exchange information with an external circuit. It consists of an external circuit connection portion 280. In addition, a separate wireless data communication transceiver 300 is configured to be connected to the external circuit connection unit 280 of the terminal 200.

As shown in FIG. 4, when the wireless data transceiver 300 is connected to the external circuit connection unit 280 of the terminal, the location-aware wireless signal is transmitted through the external circuit connection unit 270 via the wireless data transceiver 300. It is used as an input of the location information extraction unit 230. In addition, the user can use the terminal 200 to perform wireless data communication using the same frequency as the frequency of the position recognition radio signal propagated in the position recognition radio signal transmitter 100 according to the present invention. That is, the user can use the terminal 200 for location recognition according to the present invention as well as general wireless data communication as in the third embodiment. In this case, as described above, the frequency of the position recognition radio signal may be a frequency of 150 MHz to 650 MHz, as well as frequencies of 2 GHz to 6 GHz used for general wireless data communication.

Unlike the case of the second embodiment, the present embodiment is a case where the position recognition frequency and the frequency for wireless data communication are the same, and as shown in FIG. 4 without the addition of a separate radio signal transmitter 235 and receiver 220. By having a structure including an external circuit connection unit and a wireless data transmission and reception device 300 connected thereto, the user can directly perform wireless data communication using the terminal 200, thereby achieving the above effects.

In addition, the present embodiment uses the external circuit connection unit 280 and the wireless data transmission / reception device 300 connected thereto instead of the radio signal receiver 220 and the radio signal transmitter 235, unlike the case of the third embodiment. The effect is the same as in the third embodiment. The operation of the other components is the same as in the first embodiment.

5 is a fifth embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 5, a fifth embodiment of a personal handheld terminal having a location recognition function according to the present invention is configured to reproduce guide information using a location recognition unit and location information for receiving location recognition wireless signals and extracting location information. The guide information reproducing unit and a circuit connection unit outside the reproducing unit connecting the position recognition unit and the guide information reproducing unit.

The position recognition unit 210 is composed of a wireless signal receiver 220 and a position information extractor 230 again. The guide information reproducing unit 215 again includes a control unit 240, a guide information storage unit 250, an input unit 260, an output unit 270, and an external circuit connection unit 280.

As described above, the position recognition unit 210 and the guide information reproducing unit 215 are constituted by separate modules, and both of them are connected by a circuit connecting unit 290 outside the regenerator. The position information obtained by the position recognition unit 210 is transmitted to the control unit 240 of the guide information player through a circuit connection unit 290 outside the player. In addition, the control of the position recognition unit by the control unit 240 is made through a circuit connection unit 290 outside the player.

With this configuration, as in the third embodiment, the user can use the terminal 200 not only for general wireless data communication but also for location recognition according to the present invention. In this case, as described above, the frequency of the position recognition radio signal may be a frequency of 150 MHz to 650 MHz, as well as frequencies of 2 GHz to 6 GHz used for general wireless data communication.

In addition, this configuration can be equipped with a separate position recognition unit 210 is provided through the external circuit connection unit 290 using the existing personal portable terminal as the guide information playback unit 215 as it has a compatibility with the existing terminal. . It also enables integration with PDAs, cell phones and MP3 players. Mobile phones can provide information by voice, text, and video similar to PDAs, but MP3 players can provide only voice information.

6 is a sixth embodiment of a personal mobile terminal having a location recognition function according to the present invention. Referring to FIG. 6, a sixth embodiment of a personal handheld terminal having a location recognition function according to the present invention is configured to reproduce guide information using a location recognition unit and location information which receives location recognition wireless signals and extracts location information. The guide information reproducing unit and a circuit connection unit outside the reproducing unit connecting the position recognition unit and the guide information reproducing unit.

The position recognition unit 210 is composed of a wireless signal receiver 220, a position information extractor 230, and a position recognizer controller 245. The guide information reproducing unit 215 is composed of a guide information control unit 240, a storage unit 250, an input unit 260, an output unit 270, and an external circuit connection unit 280.

In this embodiment, a separate control unit 245 is further provided in the position recognition unit 210 to directly control the operation of the position recognition unit 210, thereby increasing the information processing speed.

In addition, as in the third embodiment, the user can use the terminal 200 not only for general wireless data communication but also for location recognition according to the present invention. In this case, as described above, the frequency of the position recognition radio signal may be a frequency of 150 MHz to 650 MHz, as well as frequencies of 2 GHz to 6 GHz used for general wireless data communication.

In addition, as in the fifth embodiment, if the position recognition unit 210 is provided as a separate device from the guide information player 215, when it is mounted outside the existing terminal as the guide information player 215, It is a compatible structure. The operation of the other components is the same as in the first embodiment.

7 is a seventh embodiment of a personal portable terminal having a location recognition function according to the present invention. Referring to FIG. 7, a seventh embodiment of a personal terminal having a location recognition function according to the present invention includes a wireless signal transmitter 235 for transmitting a location-aware wireless signal, and a wireless signal receiver 220 for receiving a location information wireless signal. ), A control unit 240 for controlling the operation of the terminal 200, a storage unit 250 for storing guide information, an input unit 260 for inputting a control signal, and an output unit 270 for displaying location information and guide information. It consists of.

The wireless signal transmitter 235 independently transmits an ID (ID: Identifier) distinguished from other terminals to each receiver 120 fixedly installed at a specific place where one or more locations of a specified floor in a room are known. The position recognition radio signal is periodically transmitted by combining information such as the transmission time and the number of transmissions together with the ID information. The wireless signal transmitter 235 transmits a small power location-aware radio signal having a transmission power of 1 W or less to minimize the power consumption of the terminal 200 and the influence of the reflected wave on the outer wall to minimize the multipath propagation of the radio wave.

The location-aware radio signal receiver 120 is fixedly installed at a specific place where one or more locations of a specified floor in a room are known. In addition, when the interior has a structure of two or more floors above ground or underground, it is preferable to be fixedly installed at a specific place where one or more positions are known for each floor. The position recognition radio signal receiving apparatus 120 should be provided at at least one or more different positions which are known in advance, and as the number of the receiving apparatuses 120 increases, more accurate position information can be obtained. It is preferably provided at three or more different positions. When provided with 1 or 2, it is difficult to obtain accurate position information other than the area information according to the distance information. When provided with 3 or more, the position information can be accurately obtained by using triangulation. When provided with 5 or more, the accuracy is higher, but the synergy effect of accuracy is insignificant compared to the case provided with 3 or 4.

The location information transmitting device 150 is installed at a specific place different from each of the location recognizing radio signal receiving devices 120 and is connected to each of the receiving devices 120 and has a radio signal transmitting unit 130 and a location therein. And an information extraction unit 230. Distance information between the terminal 200 and each receiver 120 is obtained by using any or all of the radio wave arrival distance or the intensity of the radio waves in the receiver 120. The location information of the terminal 200 is obtained using the distance information. Thereafter, the location information transmitter 150 transmits the location information radio signal to the terminal 200, and the terminal 200 reproduces the guide information based on the location information. In general, in order to distinguish a specific terminal from the plurality of terminals 200, the terminal 200 has a unique identification ID, and the location information radio signal includes this unique identification ID. The location information transmitting device 150 periodically transmits location information. If the period information is divided by the number of terminals and the location information of several terminals are sequentially or simultaneously included in the multiple information to all the terminals 200, the terminal ( 200) obtains its own location information with respect to the radio signal by extracting only information with its corresponding identification ID. The location information extracting unit 230 and the location information transmitting device 150 may be configured with separate modules for processing a large amount of information.

The radio signal receiving unit 220 receives the location information radio signal transmitted from the location information transmitting apparatus 150, demodulates and decodes it, and processes the location information radio signal as an input of the control unit 240.

The controller 240 reads the location information, selects and plays back guide information stored in the storage 250, and outputs the reproduced information to the output unit 270.

In such a structure, the structure of the terminal 200 may be simplified since it is not necessary to include the location information extracting unit 220 in the terminal 200 or as a separate module. In addition, the existing terminal can be used as it is.

The operation of the personal mobile terminal according to the seventh embodiment of the present invention will be described below.

First, the user receives the terminal 200 according to the present invention and enters the area where the guide object is displayed. Upon entering, the terminal 200 transmits a location-aware radio signal to the location recognition receiver 120. The location information transmitting apparatus 150 extracts the location information of the terminal and transmits the location information of the terminal to the terminal 200 using the wireless signal received by the location recognition receiver 120. After the terminal 200 obtains the location information from the location information radio signal, the control unit 240 selects the guide information from the storage unit 250 based on the location information, and reproduces the guide information.

In addition, as in the third embodiment, the user can use the terminal 200 not only for general wireless data communication but also for location recognition according to the present invention. In this case, as described above, the frequency of the position recognition radio signal may be a frequency of 150 MHz to 650 MHz, as well as frequencies of 2 GHz to 6 GHz used for general wireless data communication.

8 is an output screen configuration diagram of a personal mobile terminal having a location recognition function according to the present invention. Referring to FIG. 8, the output unit screen 270 of the terminal according to the present invention includes a menu unit 400 for selecting a command to be executed by the user and an information display unit 500 for displaying information corresponding to the selected command. It is composed.

The menu unit 400 may include a setting unit, a search unit, a recommendation unit, a map unit, a purchase unit, a mail unit, and a controller.

In the setting unit, the user can select the language (English, Japanese, etc.), the age of the user, and the term (general term, terminology) according to the user's viewing information knowledge so that the information can be displayed in various levels according to the user level do.

The search unit may be selected when the user wants to find an object of particular interest in the information providing area, and may search for a location of the object of interest in the information providing area through an item search and a keyword search. You can also search for the location of the current companion through the companion search. This means that the location information grasped through the terminal 200 according to the present invention carried by the companion is displayed on the user's terminal.

The recommendation unit is for recommending items that are related to the current related items to provide relevant information.

The map unit may display a map of the current location of the user and the entire information providing area.

The purchasing unit introduces products related to the currently viewed item, and the place and method of purchase are introduced.

The mail unit can send a simple text message between the companions. In this case, the terminal 200 according to the present invention may not only provide guide information based on the location information but may also have an existing terminal function. You can use the mail section at.

The control unit controls the content on which the information is displayed, and there may be various ways such as forward, backward, pause, stop, playback, first, and the like.

The information display unit 500 may display the information according to the position and the selected information by graphic, text, image, and a combination thereof. In addition, the evacuation route and method guide in an emergency, it may be able to express the designated broadcast and messages at a specified time, and can also indicate whether the message is received. You can also control the information display content (forward, backward, pause, stop, etc.).

According to the present invention, the position signal transmission device is equipped with the information of the visitor, the age of the visitor, the intellectual level, the field of interest, the language of use and the guidance of the exhibits and the exhibition hall by combining audio, video, text, or detailed information and By allowing you to select additional information, you can replace the separate guide and minimize unnecessary information to provide personalized information that is appropriate for the information and level you need and additional functions, such as finding companions or groups, items of interest, and related items. It can provide functions such as ordering.

While the preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is understood that various changes and modifications may be made without departing from the spirit and scope of the following claims. Should be done.

Claims (10)

A personal handheld terminal that is fixedly installed in a specific place where one or more locations in a room are known and automatically provides guide information using a radio wave transmitted from a radio signal transmitter that has a unique identification ID and transmits a low power location-aware radio signal. To A wireless signal receiver for receiving a position recognition wireless signal; A location information extraction unit for extracting location information of the reception unit by using the wireless signal received by the reception unit; A guide information storage unit for storing guide information classified by location information extracted by the location information extraction unit; A control unit for selecting guide information stored in the guide information storage unit by using the location information extracted by the location information extracting unit and controlling reproduction of the selected guide information and output of the reproduced guide information; An input unit for inputting a control signal to the controller; And an output unit for outputting position information extracted from the position information extracting unit and guide information selected and reproduced by the control unit according to a control signal input to the input unit as voice, text, video, and a combination thereof. Personal handset with location recognition function. The method of claim 1, The personal portable terminal is connected to an external circuit further comprises an external circuit connecting unit for exchanging information with the control unit. The method of claim 2, The external circuit connection unit is a personal terminal having a location recognition function characterized in that the wireless data transmission and reception device for transmitting and receiving a wireless signal for wireless data communication is connected. The method according to any one of claims 1 to 3, The frequency of the location recognition radio signal received by the radio signal receiving unit is a personal handheld terminal having a location recognition function, characterized in that 150 MHz to 650 MHz. The method of claim 1, The personal handheld terminal further comprises a wireless signal transmitter for transmitting a wireless signal for wireless data communication. A personal handheld terminal that is fixedly installed in a specific place where one or more locations in a room are known and automatically provides guide information using a radio wave transmitted from a radio signal transmitter that has a unique identification ID and transmits a low power location-aware radio signal. To An external circuit connection unit connected to an external circuit to exchange information with the control unit; A location information extraction unit for extracting location information of the reception unit by using a wireless signal received from the external circuit connection unit; A guide information storage unit for storing guide information classified by location information extracted by the location information extraction unit; A control unit for selecting guide information stored in the guide information storage unit by using the location information extracted by the location information extracting unit and controlling reproduction of the selected guide information and output of the reproduced guide information; An input unit for inputting a control signal to the controller; And an output unit for outputting the position information extracted from the position information extracting unit and guide information selected and reproduced by the controller according to a signal input to the input unit in voice, text, video, and a combination thereof. The external circuit connection unit is a personal terminal having a location recognition function characterized in that the wireless data transmission and reception device for transmitting and receiving a wireless signal for wireless data communication is connected. A personal handheld terminal that is fixedly installed in a specific place where one or more locations in a room are known and automatically provides guide information using a radio wave transmitted from a radio signal transmitter that has a unique identification ID and transmits a low power location-aware radio signal. To A wireless signal receiver for receiving a position recognition wireless signal; A location recognition unit including a location information extraction unit for extracting location information of the reception unit using the wireless signal received by the reception unit; A guide information storage unit for storing guide information classified for each location information extracted by the location recognition unit; A controller for selecting guide information stored in the guide information storage unit by using the position information extracted by the position recognition unit and controlling reproduction of the selected guide information and output of the reproduced guide information; An input unit for inputting a control signal to the controller; An output unit for outputting position information extracted from the position information extracting unit and guide information selected and reproduced by the control unit according to a signal input to the input unit as voice, text, video, and a combination thereof; A guide information reproducing unit connected to an external circuit, the external circuit connecting unit capable of exchanging information with the control unit, and provided outside the position recognition unit; And a circuit connection unit outside the player provided at the outside of the position recognition unit and the guide information reproducing unit, connecting the position recognizing unit and the external circuit connecting unit. The method of claim 7, wherein The position recognition unit further comprises a position recognition unit control unit for controlling the operation of the wireless signal receiving unit and the position extraction unit. The transmitter after extracting the distance between each transmitter and the receiver using radio waves received from a radio signal receiver that is fixedly installed in a specific place where one or more locations of the room are known and receive a low power position recognition radio signal. In the personal portable terminal for automatically providing the guide information by using the radio wave transmitted from the location information transmitter for extracting the location information of the location information transmitting a wireless signal, A radio signal transmitter for transmitting a low power location recognition radio signal with a unique identification ID; A radio signal receiver for receiving the location information radio signal transmitted from the location information transmitter which extracts the location information using the radio signal transmitted from the transmitter; A guide information storage unit for storing guide information classified for each location information received by the reception unit; A control unit for selecting guide information stored in the guide information storage unit by using the position information received by the receiving unit and controlling reproduction of the selected guide information and output of the reproduced guide information; An input unit for inputting a control signal to the controller; And an output unit for outputting position information extracted from the position information extracting unit and guide information selected and reproduced by the control unit in the form of voice, text, video, and a combination thereof according to the signal input to the input unit. Personal handset with location recognition. The method according to any one of claims 5 to 9, The frequency of the location recognition radio signal received by the radio signal receiving unit is a personal handheld terminal having a location recognition function, characterized in that 2GHz to 6GHz.