KR20100064937A - Navigation device and method for guiding route thereof - Google Patents

Abstract

PURPOSE: A navigation device and a method for guiding a route thereof are provided to guide a user a desired destination by receiving the position data of a terminal and outputting it. CONSTITUTION: A wireless communications unit transmits signal(S11). A signal is requested to activate a function for detecting the location of the other terminal. A wireless communications unit receives the location information of the other terminal(S12). The sensing unit senses a creation event and the elapse of a certain time(S13). A controller controls the wireless communications unit. The controller guides a driving path by using the location of the other terminal(S16).

Description

NAVIGATION DEVICE AND METHOD FOR GUIDING ROUTE THEREOF}

The present invention relates to a navigation terminal for guiding a route using a moving object and a route guidance method of the navigation terminal using the same.

In general, a navigation terminal is a device that provides a user's location and route guidance from a destination to a destination, and includes a vehicle, a ship, an air vehicle, and a portable navigation device.

Among the various navigational vehicles, the vehicle navigation terminal is installed in a vehicle or installed to be mounted / removable, so that the user needs information for driving the moving object, that is, the location of the moving object, road information (departure point, destination location, and route from the starting point to the destination). Information) and various additional information related to the location of the moving object (including information related to dangerous areas, accident areas, control sections and surrounding facilities), so that users can arrive at their destination more quickly and safely. Make sure

As a result of the steady development of technology, the vehicle navigation provides various multimedia and additional functions such as DMB (Digital Multimedia Broadcasting), MP3, karaoke, video playback, games, etc. It has come to provide so-called telematics service that combines mobile communication technology and Global Positioning System Technology (GPS).

In addition to the vehicle navigation terminal, there may be a portable navigation terminal which is manufactured to be portable by the user and provides information necessary for walking of the user.

When setting a destination using a navigation terminal and being guided to a route to the destination, it is common to guide a route to a fixed destination, but consideration of a method of guiding a route to a moving destination is required.

The present invention is to set the moving object as a destination, to provide a route guidance for the moving destination, so that the user can be provided with various types of route guidance information.

The navigation terminal according to an embodiment of the present invention for realizing the above object, transmits a signal for requesting activation of a function for identifying the location of another terminal or a signal for requesting location information of the other terminal, Wireless communication unit for receiving the location information of the other terminal, a sensing unit for detecting the occurrence of a certain event or the elapse of a certain time, and a signal for requesting the location information of the other terminal according to the occurrence of the predetermined event or the elapse of a certain time It includes a control unit for controlling the wireless communication unit to transmit, and guides the driving route using the location of the other terminal received.

In one aspect of the invention, the user input unit for receiving an input for requesting the location information of the other terminal from the user, wherein the predetermined event, the input for requesting the location information of the other terminal from the user is received Can be.

In another aspect of the present invention, the predetermined event may be a movement of a predetermined distance or more from a point where the other terminal previously transmitted the location information.

In another aspect of the present invention, the control unit may set the predetermined time longer as the distance between the other terminal and the navigation terminal.

In another aspect of the present invention, the terminal may further include an output unit for guiding a driving route by outputting a location of the other terminal or a path from the navigation terminal to the other terminal.

In another aspect of the present invention, the wireless communication unit transmits a signal for requesting activation of a function for locating the location of the other terminal or a signal for requesting location information of the other terminal to the other terminal or server. The location information of the other terminal may be received from the other terminal or the server.

In another aspect of the present invention, the location information of the other terminal may include a moving speed of the other terminal, the position of the other terminal, the direction of the other terminal.

In another aspect of the present invention, the control unit estimates the position of the other terminal by using dead reckoning using the received position information of the other terminal, and the output unit, the estimated other terminal You can output the location of.

A navigation device according to another embodiment of the present invention for realizing the above object receives a signal requesting activation of a function for locating a navigation terminal, and transmits location information of the navigation terminal to the other terminal. The wireless communication unit for transmitting, the sensing unit for detecting the occurrence of a certain event or the elapse of a certain time, and the wireless communication unit to transmit the location information of the navigation terminal to the other terminal according to the detected constant event or the elapse of a predetermined time. It includes a control unit for controlling.

In another aspect of the present disclosure, the sensing unit may detect that the navigation terminal has changed the progress direction by more than a predetermined size, and the predetermined event may be that the navigation terminal has changed the progress direction by more than a predetermined size. .

The route guidance method of the navigation device according to an embodiment of the present invention for realizing the above object comprises the steps of transmitting a signal requesting activation of a function for locating another terminal, and when a certain event occurs Or transmitting a signal for requesting location information of the other terminal at predetermined time intervals, and guiding a driving route using the location information of the other terminal.

In one aspect of the present invention, the predetermined event may be an input for requesting location information of the other terminal from a user.

In another aspect of the present invention, the predetermined event may be a movement of a predetermined distance or more from a point where the other terminal previously transmitted the location information.

In another aspect of the present invention, the predetermined time may be set longer as the distance between the other terminal and the navigation terminal is longer.

In another aspect of the present invention, the guiding may be a step of guiding a driving route by outputting a location of the other terminal or a path from the navigation terminal to the other terminal.

In another aspect of the present invention, the location information of the other terminal may be received from the other terminal or server.

In another aspect of the present invention, the location information of the other terminal may include a moving speed of the other terminal, the position of the other terminal, the direction of the other terminal.

In another aspect of the present invention, the step of guiding may further include outputting the location of the other terminal by using dead reckoning using the received location information of the other terminal.

According to another aspect of the present invention, there is provided a route guidance method of a navigation device, the method comprising: receiving a signal requesting activation of a function for locating a navigation terminal; Detecting the elapse of a predetermined time, and transmitting the location information of the navigation terminal to the other terminal according to the detected predetermined event or the elapse of the predetermined time.

In one aspect of the present invention, the predetermined event may be that the navigation terminal changes the progress direction more than a predetermined size.

The navigation terminal according to at least one embodiment of the present invention configured as described above may receive the location information of the terminal from the mobile terminal and output the location information, thereby guiding the user with the route to the moving destination.

Hereinafter, a navigation terminal according to the present invention will be described in detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The navigation terminal or another terminal described herein may be implemented in the form of a vehicle navigation terminal mounted on a vehicle to form a car navigation system (CNS).

Alternatively, the navigation terminal or another terminal may be a mobile phone equipped with a location information module, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), or the like. It may be implemented in the form.

1 is a block diagram of a navigation terminal according to an embodiment of the present invention.

The navigation terminal 100 includes a wireless communication unit 110, a location information module 120, an A / V input unit 130, a user input unit 140, a sensing unit 150, an output unit 160, The memory 170 may include an interface unit 180, a controller 190, a power supply unit 200, and the like. The components shown in FIG. 1 are not essential, so a navigation terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the navigation terminal 100 and the wireless communication system or between the navigation terminal 100 and a network in which the navigation terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short range communication module 114, and the like.

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 170.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the navigation terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 120 is a module for obtaining a location of a mobile terminal, and a representative example thereof is a GPS (Global Position System) module.

The GPS module receives a signal including time information from at least three navigation satellites, and calculates a distance from each satellite using the signal. Position information may be obtained by applying triangulation to the calculated distance. The GPS module may increase the accuracy of the calculated location information by further applying techniques such as map matching and dead reckoning to the location information obtained by applying the triangulation method.

The location information module 120 may obtain location information by using various technologies such as cell tower signals, wireless internet signals, and Bluetooth sensors in addition to the GPS module to determine the location of the mobile terminal. This technique is called Hybrid Positioning System.

The location of the navigation terminal 100 sensed by the location information module 120 may mean the location of the moving object.

Referring to FIG. 1, the A / V input unit 130 is for inputting an audio signal or a video signal, and may include a camera 131 and a microphone 132. The camera 131 processes image frames such as still images or moving images obtained by the image sensor in the photographing mode. The processed image frame may be displayed on the display unit 161.

The image frame processed by the camera 131 may be stored in the memory 170 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 131 may be provided according to a usage environment.

The microphone 132 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The microphone 132 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 140 generates input data for controlling a user's navigation terminal operation. The user input unit 140 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

When the navigation terminal 100 is a vehicle navigation device 100, a steering wheel, an acceleration pedal, a brake pedal, a gear shift lever, and the like mounted on a vehicle may be a user input unit. 140 may be configured.

The sensing unit 150 may sense whether or not the user contacts the navigation terminal 100, whether the power supply unit 200 supplies power, whether the interface unit 180 is coupled with an external device, or a vehicle component. . The sensing unit 150 may include a proximity sensor 151.

On the other hand, the sensing unit 150 is a sensor for detecting the movement of the moving object, for example, a speed sensor (speed sensor) for detecting the moving speed of the moving object, an acceleration sensor (G-sensor) for detecting the acceleration, or the moving object It may include a gyro sensor (gyro sensor) for detecting the rotational angular velocity or rotational angular acceleration of the. Sensors for detecting the movement of the moving object may be utilized as a DR sensor (Dead Reckoning Senosor (DR sensor)). The DR sensor may be included in the location information module or used to determine the location of the moving object by interacting with the location information module.

When the navigation terminal 100 is a vehicle navigation apparatus 100, the sensing unit 150 may open or close a vehicle door or window, whether a seat belt is worn, a driver's steering wheel, an accelerator pedal, a brake pedal, and a gear. Operation status of the shifting lever, temperature inside or outside the vehicle, whether the collision between the vehicle and other objects and their strength, distance between the vehicle and other objects, the state of the parts mounted on the vehicle, and lamps mounted inside or outside the vehicle A sensing signal for controlling the operation of the navigation terminal 100 or the vehicle may be generated by detecting a current state of the vehicle or the navigation terminal 100, such as a flashing state or brightness of a lamp, or whether a vehicle occupant is seated. For example, when the vehicle door is opened or when the vehicle occupant is seated, it may be detected by using a pressure sensor that senses the pressure applied to the chair.

The output unit 160 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 161, a sound output module 162, an alarm unit 163, and a haptic module 164. Can be.

The display unit 161 displays (outputs) information processed by the navigation terminal 100. For example, when the navigation terminal is in the route search mode, the UI (User Interface) or GUI (Graphic User Interface) related to the route search is displayed. When the navigation terminal 100 is in a video call mode or a photographing mode, the navigation terminal 100 displays a photographed and / or received image, a UI, and a GUI.

The display unit 161 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED).

The display unit 161 may be implemented in the form of a head up display (HUD). For example, the display unit 161 may be implemented in a window provided in the windshield or the door of the vehicle. In this case, the display unit 161 may be configured as a transparent type or a light transmissive type.

According to the implementation form of the navigation terminal 100, two or more display units 161 may exist.

When the display unit 161 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 161 may be used in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 161 or capacitance generated at a specific portion of the display unit 161 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 190. As a result, the controller 190 may determine which area of the display unit 161 is touched.

Referring to FIG. 1, a proximity sensor 151 may be disposed in an inner region of the navigation terminal covered by the touch screen or near the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The sound output module 162 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, a path search mode, and the like. . The sound output module 152 may also output a sound signal related to a function (for example, a call signal reception sound, a message reception sound, a route guidance voice, etc.) performed by the navigation terminal 100. The sound output module 162 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 163 outputs a signal for notifying occurrence of an event of the navigation terminal 100. Examples of events occurring in the navigation terminal include call signal reception, message reception, touch input, abnormalities of components mounted on a vehicle, and abnormal opening and closing of a vehicle door or window. The alarm unit 163 may output a signal for notifying the occurrence of an event by vibration, in addition to a video signal or an audio signal. The video signal or the audio signal may also be output through the display unit 161 or the audio output module 162, so that they 161 and 162 may be classified as part of the alarm unit 163.

The haptic module 164 generates various tactile effects that a user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 164. The intensity and pattern of vibration generated by the haptic module 164 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to the vibration, the haptic module 164 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 164 may not only deliver the haptic effect through direct contact, but may also be implemented to allow the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 164 may be provided according to a configuration aspect of the navigation terminal 100.

When the navigation terminal 100 is a vehicle navigation terminal 100, the haptic module 164 may be provided where frequent contact with the user is made in the vehicle. For example, it may be provided in a steering wheel, a shift gear lever, a seat seat, and the like.

The memory 170 may store a program for the operation of the controller 190 and may temporarily store input / output data (for example, music, still images, video, map data, and the like). The memory 170 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 170 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The navigation terminal 100 may operate in association with a web storage that performs a storage function of the memory 170 on the Internet.

The interface unit 180 serves as a path with all external devices connected to the navigation terminal 100. The interface unit 180 receives data from an external device, receives power, transfers the power to each component inside the navigation terminal 100, or transmits data within the navigation terminal 100 to an external device. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, The video input / output (I / O) port, the earphone port, and the like may be included in the interface unit 180.

When the navigation terminal 100 is a vehicle navigation terminal 100, the interface unit 180 may be a controller-area network (CAN), a local interconnect network (LIN), a FlexRay, a media oriented systems transport (MOST), or the like. It can be connected to other mounted devices of the vehicle.

The identification module is a chip that stores various types of information for authenticating the use authority of the navigation terminal 100. The identification module may include a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Therefore, the identification device may be connected to the terminal 100 through a port. Alternatively, the identification device may be manufactured in the form of a vehicle key.

The controller 190 typically controls the overall operation of the navigation terminal. For example, it performs related control and processing for data communication, video call, route search, vehicle control and the like. The controller 190 may include a multimedia module 191 for playing multimedia.

When the navigation terminal 100 is a vehicle navigation terminal 100, the controller 190 may include an airbag controller 192 for controlling an airbag mounted on a vehicle, and an emergency battery for controlling an emergency battery mounted on the vehicle. The battery controller 193 may be further provided.

The multimedia module 191, the airbag controller 192, and the emergency battery controller 193 may be implemented in the controller 180 or may be implemented separately from the controller 190.

When the navigation terminal 100 is a vehicle navigation terminal 100 and is implemented with a mobile communication technology, it is also called a telematics terminal. In this case, the control unit 190 becomes a telematics control unit (TCU).

The controller 190 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 200 receives an external power source and an internal power source under the control of the controller 190 to supply power for operation of each component.

The navigation terminal 100 may be implemented as a portable navigation terminal 100 provided with some or all of the above components and manufactured to be portable. Alternatively, the navigation terminal 100 may be implemented as a vehicle navigation terminal 100 that includes some or all of the components and is integrated with or detachable from the vehicle.

The navigation terminal 100 may be integrally implemented with the vehicle or may be implemented to be detachable from the vehicle as a separate device from the vehicle.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 190 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein. Software code may be implemented in software applications written in a suitable programming language. The software code may be stored in the memory 170 and executed by the controller 190.

As shown in FIG. 1, the wireless communication unit 110 may transmit a signal requesting activation of a function for locating another terminal. The wireless communication unit 110 may transmit a signal for requesting activation of a function for identifying the location of the other terminal to the other terminal or to a server. When the wireless communication unit 110 transmits a signal requesting activation of a function for locating the location of the other terminal to the server, the server may transmit a signal requesting activation of the function to the other terminal. When the wireless communication unit 110 communicates directly with another terminal without going through a server, an effective distance through which communication is possible is preset. Even when the other terminal does not exist within the effective range in which the communication is possible, a signal may be transmitted to the terminal through the server.

The wireless communication unit 110 may transmit a signal for requesting location information of the other terminal. The wireless communication unit 110 may transmit a signal for requesting location information of the other terminal to the other terminal or to a server. The wireless communication unit 110 may transmit a signal for requesting location information of the other terminal when a certain event occurs or a predetermined time elapses.

The wireless communication unit 110 may receive location information of the other terminal. The location information of the other terminal may include a moving speed of the other terminal, a location of the other terminal, and a moving direction of the other terminal. The location information of the other terminal may be mounted by the other terminal or the other terminal. The sensor may be sensed by a sensor embedded in the mobile unit, or detected by the server and transmitted to the navigation terminal 100. The location information of the terminal may be used for dead-reckoning, which will be described later.

As illustrated in FIG. 1, the sensing unit 150 may detect the occurrence of the predetermined event or the passage of a predetermined time. The sensing unit is an acceleration sensor for detecting an acceleration of a terminal or a mobile body on which the terminal is mounted, a gyro sensor for detecting the angular acceleration of the mobile terminal on which the terminal or the terminal is mounted, and a distance for detecting a distance between the navigation terminal 100 and another terminal. The sensor may include a timer for detecting the passage of a predetermined time.

The wireless communication unit 110 may detect the occurrence of a certain event or the passage of a predetermined time using the information received from the server or another terminal, wherein the wireless communication unit 110 functions as a sensing unit 150. can do.

As shown in FIG. 1, when a certain event occurs or a predetermined time elapses, the controller 190 controls the wireless communication unit to transmit a signal for requesting location information of the other terminal to the wireless communication unit 110. can do.

 The constant event may be an input for requesting location information of the other terminal from a user. When the user wants to know the location of the other terminal through the user input unit 140, the user may manipulate the user input unit 140 to request the location information of the other terminal.

 The constant event may be a movement of a predetermined distance or more from a point where the other terminal previously transmitted location information. When the other terminal moves more than a certain distance from the last point of transmitting the location information, the navigation terminal 100 needs to update the location of the other terminal for the route guidance. Therefore, when detecting that the other terminal has moved more than a predetermined distance from the point where the location information is transmitted, the navigation terminal 100 may transmit a signal for requesting the location information to the other terminal.

The controller 190 may set the predetermined time longer as the distance between the other terminal and the navigation terminal 100 increases. When the distance between the other terminal and the navigation terminal 100 is far, even if the position of the other terminal is changed, the path from the navigation terminal 100 to the other terminal does not change significantly. However, when the distance between the other terminal and the navigation terminal 100 is close, the path from the navigation terminal 100 to the other terminal is changed when the position of the other terminal is changed. Therefore, as the distance between the other terminal and the navigation terminal 100 is closer, the navigation terminal 100 needs to update the position of the other terminal more frequently. Accordingly, the controller 190 sets the predetermined time longer as the distance between the other terminal and the navigation terminal 100 is longer, and sets the predetermined time shorter as the distance between the other terminal and the navigation terminal 100 is shorter. Thus, the time interval for updating the position of the other terminal can be adjusted according to the situation.

 The controller 190 may estimate the location of the other terminal through dead reckoning using the received location information of the other terminal. While the navigation terminal 100 does not receive the location information of the other terminal, the controller 190 may estimate the location of the other terminal by using the received location information of the other terminal.

For example, when the location information of the other terminal includes information such as the location, the moving speed, the moving direction of the other terminal, the controller 190 moves the other terminal from the time of receiving the location information of the other terminal. Assuming that the speed and the direction of the change have not been changed, the position of the other terminal may be calculated and estimated. Alternatively, the controller 190 may calculate and estimate the location of the other terminal by using the movement pattern of the other terminal and the location information of the other terminal previously stored in a memory. The movement pattern of the other terminal may refer to data in which the movement form of the other terminal previously moved, that is, the maximum speed or the maximum acceleration, the speed at which the most travels, or the moving direction is recorded.

As illustrated in FIG. 1, the output unit 160 may guide a driving route by outputting a location of the other terminal or a path from the navigation terminal to the other terminal.

The output unit 160 may include a display unit 161 for visually displaying the position of the other terminal. The display unit 161 may visually display a path from the navigation terminal 100 to the other terminal together with the location of the other terminal. The display unit 161 may visually guide the moving direction of the navigation terminal based on a point of interest (POI), an intersection, a intersection, and the like that exist on the route.

The output unit 160 may include a sound output module 162 that audibly outputs the position of the other terminal. The sound output module 162 may acoustically output a path from the navigation terminal 100 to the other terminal together with the position of the other terminal.

Hereinafter, a navigation terminal 100 according to another embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the wireless communication unit 110 may receive a signal for requesting activation of a function for locating the navigation terminal 100. The signal requesting activation of the function may be received from a network or another terminal.

The wireless communication unit 110 may transmit location information of the navigation terminal 100 to the other terminal. The location information of the navigation terminal 100 may include a moving speed of the navigation terminal 100, a location of the navigation terminal 100, and a moving direction of the navigation terminal 100. The location information of) may be detected by a sensor embedded in the navigation terminal 100 or a moving object in which the navigation terminal 100 is mounted, or detected by the server and transmitted to the other terminal.

In FIG. 1, the sensing unit 150 may detect the occurrence of the constant event or the passage of a predetermined time. The sensing unit is an acceleration sensor for detecting an acceleration of a terminal or a mobile body on which the terminal is mounted, a gyro sensor for detecting the angular acceleration of the mobile terminal on which the terminal or the terminal is mounted, and a distance for detecting a distance between the navigation terminal 100 and another terminal. The sensor may include a timer for detecting the passage of a predetermined time.

The sensing unit 150 may include a gyro sensor that detects a change in the moving direction of the navigation terminal. The gyro sensor may detect a change in a traveling direction of the navigation terminal 100 or the moving object on which the navigation terminal 100 is mounted.

As shown in FIG. 1, the controller 190 may control the wireless communication unit 110 to transmit the location information of the navigation terminal 100 to the other terminal according to the detected schedule event or the elapse of a predetermined time. Can be.

For example, when the sensing unit 150 detects a change in the moving direction of the navigation terminal device 100 or the moving object on which the navigation terminal 100 is mounted, the controller 190 sets a predetermined threshold value. Compare with When the change in the traveling direction exceeds a preset threshold, it may be determined that the traveling route of the navigation terminal 100 has changed. Therefore, in this case, the wireless communication unit 110 may be controlled to transmit the location information of the navigation terminal 100 to the other terminal tracking the navigation terminal 100.

As illustrated in FIG. 1, the user input unit 140 may receive from a user whether to accept activation of a function for locating the navigation terminal 100.

As illustrated in FIG. 1, the output unit 160 may output to the user that a signal for requesting activation of a function for locating the navigation terminal 100 is received.

2-flow chart

2 is a flowchart illustrating a route guidance method of a navigation terminal according to an embodiment of the present invention.

As illustrated in FIG. 2, the navigation terminal 100 may transmit a signal for requesting activation of a function for locating another terminal (hereinafter, referred to as a tracking function) to the other terminal or server ( S11).

When the user of the other terminal receiving the request accepts the request, the other terminal transmits the location information of the other terminal to the navigation terminal 100. The navigation terminal may directly receive location information of the other terminal from a network or the other terminal (S12).

After the navigation terminal 100 receives the location information of the other terminal (S12), it is necessary to further receive the location information of the other terminal. The location information of the other terminal may be additionally received whenever a certain event occurs or a predetermined time elapses.

To this end, the navigation terminal 100 may detect the occurrence of a certain event or the passage of a predetermined time (S13).

The constant time may be set differently according to the positional relationship between the navigation terminal 100 and the other terminal.

For example, when the distance between the navigation terminal 100 and the other terminal is long, the predetermined time may be set longer. Alternatively, when the distance between the navigation terminal 100 and the other terminal is close, the predetermined time may be set relatively short.

The constant event may be an input for requesting location information of the other terminal from a user, or may be moved more than a predetermined distance from a point where the other terminal previously transmitted location information.

While the location information is received and the next location information is received, the navigation terminal 100 may calculate the location of the other terminal using dead reckoning using the previously received location information (S15).

The navigation terminal 100 may guide the driving route by outputting the location of the other terminal using the received location information of the other terminal or the location information of the other terminal calculated through the estimation method.

3-Flowchart 2

3 is a flowchart illustrating a route guidance method of a navigation terminal according to another embodiment of the present invention.

As shown in FIG. 3, the navigation terminal 100 may receive a signal for requesting activation of a function for locating a navigation terminal (S21).

The navigation terminal 100 may inform the user that a signal for requesting activation of a function for locating the navigation terminal has been received.

The navigation terminal 100 may receive a signal for accepting the function activation request from the user (S22). After receiving the signal for accepting the function activation request (S22), the navigation terminal 100 may guide the user to additionally input an authentication code to prove that the user of the navigation terminal 100.

The navigation terminal 100 may detect the occurrence of an event or the passage of a predetermined time (S23).

The constant time may be set differently according to the positional relationship between the navigation terminal 100 and the other terminal.

For example, when the distance between the navigation terminal 100 and the other terminal is long, the predetermined time may be set longer. Alternatively, when the distance between the navigation terminal 100 and the other terminal is close, the predetermined time may be set relatively short.

The predetermined event may be that the other navigation terminal 100 changes the progress direction more than a preset value.

The navigation terminal 100 may transmit location information of the navigation terminal 100 to another terminal at a predetermined event occurrence or at a predetermined time interval (S24).

[Figure 4 Navigation Screen Configuration General]

4A to 4K illustrate a state in which a navigation terminal associated with an embodiment of the present invention tracks a position of another terminal.

As shown in FIG. 4A, a screen of the navigation terminal 100 includes various information necessary for driving of a moving object (including a movement of a user having a moving object when the navigation terminal is a portable navigation terminal). Can be marked on.

As shown in FIG. 4A, the display unit 161 may display an icon I1 indicating an orientation of a map displayed on an area of the screen. The display unit 161 may display a map such that a specific direction (for example, the true north direction of the earth), the moving direction of the moving object, the direction in which the destination is located, and the like are fixed to the upper direction of the screen.

The display unit 161 may display an icon I2 indicating whether the sound output module 162 is activated and a volume setting in one area of the screen. The user may activate or deactivate the sound output module 162 or adjust the volume by applying a touch input to the icon I2.

The display unit 161 may display an icon I3 indicating whether to activate a route search function using a TPEG (Transport Portal Experts Group) in one area of the screen. TPEG (Transport Portal Experts Group) was originally established in 1997 by the European Broadcasting Union, a group for the establishment of traffic information protocols, but the navigation system is widely known as a route guidance function using real-time traffic information. have.

The display unit 161 may display an icon I4 displaying a scale of the map data in one area of the screen.

The display unit 161 may display an icon I5 displaying a current time in one area of the screen. In addition, the display unit 161 may display an icon I6 indicating an estimated time to reach a preset destination in one region of the screen. In addition, an icon indicating a time required to reach a predetermined destination may be displayed.

The display unit 161 may display an icon I7 displaying a distance remaining to a preset destination in one region of the screen.

The display unit 161 may display an icon I8 for enlarging or reducing the icon I8 'for enlarging the map displayed on one area of the screen.

The display unit 161 may display an icon I9 indicating a position and a moving direction of the moving object in one region of the screen. The icon I9 may be displayed at a point corresponding to the location of the current moving object on the map. Further, the moving direction of the moving object may be indicated by the vertex direction of the arrow or the like in the icon I9.

The display unit 161 may display an icon I10 displaying a place name of an area where the moving object is located in one area of the screen.

The display unit 161 may display an icon indicating a lane configuration of a roadway when the moving road travels on a road in one region of the screen.

The display unit 161 may display a path required to reach the preset destination. The route may not be displayed if the destination of the moving object is not set.

As shown in FIG. 4B, the display unit 161 may display an icon T for activating a tracking function for the other terminal on the screen. When the display unit 161 is configured as a touch screen to configure the user input unit 140, the user may activate another terminal tracking function by applying a touch input to a screen on which the function activation icon T is displayed.

Although FIG. 4B illustrates a scene for activating a function through a touch input, the input for activating the function may be input by various methods such as key manipulation and input through speech recognition.

As shown in FIG. 4C, the display unit 161 may request an input for checking whether the tracking function is activated. As illustrated in FIG. 4C, the user may input a signal for confirming whether the tracking function is activated through a touch input, or input a signal through key manipulation or speech recognition.

The navigation terminal 100 may store a list of other terminals previously set as tracking targets in the memory 170.

As shown in FIG. 4D, the navigation terminal 100 causes the display unit 161 to display a list of other terminals previously stored on the screen, and to select one of the displayed lists. Can be.

When the user re-designates the terminal previously set as the tracking target as the tracking target, the user may designate the tracking target terminal by simple operation without having to re-enter the terminal identifier of the tracking target terminal.

The terminal identifier (terminal identifier) refers to a unique code assigned to the tracking target terminal, a mobile number in the case of a mobile communication terminal, a vehicle number mounted in the case of a vehicle navigation terminal mounted on a vehicle or a unique serial number of each machine ( serial number).

When displaying the previously stored list of other terminals on the screen, the navigation terminal may preferentially display the list of terminals having a high selection frequency on the screen. Displaying on the screen preferentially displays a list of terminals with a high selection frequency before the list of other terminals, at the top of the screen, larger than another list, or different colors from other lists. Say.

As shown in FIG. 4E, the navigation terminal 100 may receive a signal specifying a terminal to be tracked from a user. When the user designates a new terminal that has not been designated as a tracking target as a tracking target, the user may input a terminal identifier of the tracking target terminal through the user input unit 140.

As illustrated in FIG. 4C, a user may input a terminal identifier through a touch input, or input a signal through key manipulation or speech recognition.

As shown in FIGS. 4F and 4G, the navigation terminal 100 is transmitting a signal for the display unit 161 to request the location information of the other terminal to the other terminal or the server, and the other terminal approves the request. Can be displayed on the screen.

As shown in FIG. 4H, the navigation terminal 100 may display and output the location of another terminal designated as the tracking target on the screen by the display unit 161.

The display unit 161 may display the position of another terminal designated as the tracking target in the form of an icon I9 'at a point on the map displayed on the screen. The display unit 161 may display an icon I9 ′ indicating the position of the other terminal to be distinguished from an icon I9 indicating the position of the navigation terminal 100.

In order to distinguish the two icons I9 and I9 ', the display unit 161 may display the two icons I9 and I9' on the screen by changing shapes, sizes or colors of the two icons I9 and I9 '.

When the tracking function of the other terminal is activated, the display unit may display an icon T 'on the screen to guide the user to stop the tracking function.

As illustrated in FIG. 4I, the navigation terminal 100 may cause the display unit 161 to display a path from the navigation terminal 100 to another terminal on the screen.

As shown in FIG. 4J, the navigation terminal 100 may guide the display unit 161 to the user when there is an intersection, a branch point, or the like on the path of the navigation terminal 100. .

In order to guide the user to the progress direction, the navigation terminal 100 may display an icon I12 indicating the progress direction on the screen, or guide the progress direction through the sound output module 162.

As shown in FIG. 4K, the navigation terminal 100 may notify the user when the other terminal changes the moving direction or moves away from the navigation terminal 100 by a predetermined distance or more.

As shown in FIG. 4K, the navigation terminal 100 causes the display unit 161 to display an icon I13 on the screen indicating that the other terminal has changed the moving direction, or to output a sound output module 162. Can be informed via).

Fig. 5-Another embodiment (tracking object)

5A to 5C illustrate a state in which a navigation terminal associated with another embodiment of the present invention transmits location information to another terminal.

As shown in FIG. 5A, the navigation terminal 100 may display its location on the screen.

As shown in FIG. 5B, the navigation terminal 100 causes the display unit 161 to display a message indicating that a signal for requesting location information of the navigation terminal 100 has been received from the other terminal or server. can do.

The navigation terminal 100 may receive from the user whether to approve the request with respect to a signal for requesting the tracking function from the user.

As shown in FIG. 5B, the navigation terminal 100 may display a terminal identifier of the terminal requesting the tracking function on the screen.

As illustrated in FIG. 5C, the navigation terminal 100 may receive location information of the terminal requesting the tracking function and display the location information on the screen.

In addition, according to an embodiment of the present invention, the above-described method may be implemented as code that can be read by a processor in a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may be implemented in the form of a carrier wave (for example, transmission over the Internet). Include.

The navigation terminal for implementing the above-described path guidance method is not limited to the configuration and method of the above-described embodiments, the embodiments are all or part of each embodiment so that various modifications can be made It may alternatively be configured in combination.

1 is a block diagram of a navigation terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a route guidance method of a navigation terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a route guidance method of a navigation terminal according to another embodiment of the present invention.

4a to k are views showing a navigation terminal associated with an embodiment of the present invention to track the position of another terminal.

5A to 5C illustrate a state in which a navigation terminal associated with another embodiment of the present invention transmits location information to another terminal.

Claims (20)

A wireless communication unit for transmitting a signal for requesting activation of a function for identifying a location of another terminal or a signal for requesting location information of the other terminal, and receiving location information of the other terminal; Sensing unit for detecting the occurrence of a certain event or the passage of a certain time; And And a controller for controlling a wireless communication unit to transmit a signal for requesting location information of the other terminal according to the occurrence of the predetermined event or elapse of a predetermined time, and guiding a driving route using the received location of the other terminal. Navigation terminal. According to claim 1, Further comprising a user input unit for receiving an input for requesting the location information of the other terminal from the user, The constant event, Navigation input is received from the user requesting the location information of the other terminal. According to claim 1, The constant event, The other terminal is a navigation terminal that has moved more than a certain distance from the point where previously transmitted the location information. According to claim 1, The control unit, The navigation terminal for setting the predetermined time longer as the distance between the other terminal and the navigation terminal. According to claim 1, And an output unit for guiding a driving route by outputting a location of the other terminal or a path from the navigation terminal to the other terminal. According to claim 1, The wireless communication unit, Transmitting a signal for requesting activation of a function for locating the other terminal or a signal for requesting location information of the other terminal to the other terminal or server, Navigation terminal for receiving the location information of the other terminal from the other terminal or server. According to claim 1, The location information of the other terminal, Navigation terminal including the moving speed of the other terminal, the location of the other terminal, the direction of the other terminal. The method of claim 7, wherein The control unit, Estimating the location of the other terminal by using dead reckoning using the received location information of the other terminal, The output unit, Navigation terminal for outputting the estimated position of the other terminal. A wireless communication unit which receives a signal requesting activation of a function for locating a navigation terminal and transmits location information of the navigation terminal to the other terminal; Sensing unit for detecting the occurrence of a certain event or the passage of a certain time; And And a controller configured to control a wireless communication unit to transmit the location information of the navigation terminal to the other terminal according to the detected constant event or the elapse of a predetermined time. The method of claim 9, The sensing unit, Detects that the navigation terminal changes the direction of movement more than a preset size, The constant event, The navigation terminal is a navigation terminal that changes the progress direction more than a predetermined size. Transmitting a signal requesting activation of a function for locating another terminal; Transmitting a signal for requesting location information of the other terminal when a predetermined event occurs or at a predetermined time interval; And guiding a driving route using location information of the other terminal. 12. The method of claim 11, The constant event, The route guidance method of the navigation terminal is received from the user input for requesting the location information of the other terminal. 12. The method of claim 11, The constant event, The route guidance method of the navigation terminal that the other terminal has moved more than a certain distance from the point where previously transmitted the location information. 12. The method of claim 11, The predetermined time is, The route guidance method of the navigation terminal is set longer as the distance between the other terminal and the navigation terminal. 12. The method of claim 11, The step of guiding, And guiding a driving route by outputting a location of the other terminal or a path from the navigation terminal to the other terminal. 12. The method of claim 11, The location information of the other terminal, Route guidance method of the navigation terminal received from the other terminal or server. 12. The method of claim 11, The location information of the other terminal, The route guidance method of the navigation terminal including the moving speed of the other terminal, the position of the other terminal, the direction of the other terminal. 18. The method of claim 17, The step of guiding, And outputting the location of the other terminal using dead reckoning using the received location information of the other terminal. Receiving a signal requesting activation of a function for locating a navigation terminal; Detecting the occurrence of a certain event or the passage of a certain time; and And transmitting the location information of the navigation terminal to the other terminal according to the detected constant event or the elapse of a predetermined time. The method of claim 19, The constant event, Route navigation method of the navigation terminal that the navigation terminal has changed the progress direction more than a predetermined size.

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