KR20010073466A - Multi-purpose navigation apparatus which operates as dead reckoning navigation and satellite navigation system - Google Patents

Abstract

PURPOSE: A multi-role navigation system for moving object capable of connection and disconnection is provided to unify a dead reckoning system and satellite navigation system. CONSTITUTION: The fixed part(200) is installed on the moving object and provides the dead reckoning function. The portable phone part(100) is connected to or disconnected from the fixed part(200). The portable phone part(100) provides the satellite navigation function upon the disconnection from the fixed part(200) and provides the navigation function considering the satellite navigation function and the dead reckoning function upon the connection to the fixed part(200). Therefore reliability of the navigation information and convenience of the user are improved.

Description

MULTI-PURPOSE NAVIGATION APPARATUS WHICH OPERATES AS DEAD RECKONING NAVIGATION AND SATELLITE NAVIGATION SYSTEM}

The present invention relates to a navigation device for a mobile device, and more particularly to a multi-purpose navigation device for a mobile device that can be combined / separated.

Recently used navigation systems include dead reckoning system (GPS), global positioning system (GPS), and global NAvigation Satellite System (GLONASS), depending on the method. Satellite navigation system (Satellite Navigation System), such as.

In the dead reckoning device, distance sensors such as accelerometers, odometers, speedometers and altimeters mounted on vehicles and ships or aircrafts (hereinafter referred to as "moving bodies"), and gyroscopes Using azimuth sensors such as compass, compass and inclinometer, the distance and direction of movement are calculated to calculate the position and velocity of the current vehicle. Satellite navigation systems, on the other hand, calculate the position and velocity of the current vehicle from satellite signals such as GPS and GLONASS. Recently, a hybrid navigation system (Hybrid Navigation System) that calculates the best position information by appropriately combining the position provided by the dead reckoning device and the position provided by the satellite navigation device has been applied to a vehicle navigation device.

On the other hand, the sensors used in the dead reckoning apparatus are bulky, heavy in weight, and consume a lot of power. In particular, inertial sensors such as gyros and accelerometers only measure acceleration or angle of rotation in the direction in which they are mounted. Therefore, at least three sensors must be mounted to be used in a portable navigation system. On the other hand, a satellite navigation device such as GPS is capable of low power use and has an advantage in miniaturization. However, where satellite signals cannot reach, such as in forests of forests, tunnels, underground parking lots, and under piers, the location and speed cannot be obtained. For this reason, a satellite navigation device is widely used as a navigation device requiring a small power, such as a portable navigation device, and a navigation device used for a moving body, etc., a hybrid navigation device in which a dead navigation device or a dead navigation device and a satellite navigation device are combined. Navigation System) is mainly used. However, since the mixed navigation device is merely a fusion of the dead reckoning device and the satellite navigation device, there is a waste of resources that components having the same function are duplicated.

As such, the existing navigation apparatuses are classified and used for portable and mobile vehicles. Therefore, when the user uses only one navigation device, the advantage of using the navigation device may be provided, but the disadvantage of using the navigation device cannot be cured. Of course, this disadvantage may be cured to some extent by the user using both navigation apparatuses, but in this case, the user will be forced to feel a great economic burden.

Accordingly, an object of the present invention is to provide a multi-purpose navigation device integrating a dead reckoning device and a satellite navigation device into one.

Another object of the present invention is to provide a multi-purpose navigation apparatus that integrates a dead reckoning device and a satellite navigation device using different methods into one, maximizing the advantages of the navigation devices, and healing the disadvantages of each other.

Still another object of the present invention is to provide a multi-purpose navigation apparatus which can reduce the economic burden of a user while integrating and implementing a dead reckoning apparatus and a satellite navigation apparatus that employ different methods.

Still another object of the present invention is to provide a multi-purpose navigation apparatus for increasing the reliability of navigation information and user convenience.

The present invention for achieving the above object is to provide a multi-purpose navigation device that is composed of a mobile navigation device and a mobile navigation device that employs a different way to increase the reliability of the location information and the user convenience, and in case of an accident Facilitate rescue and rescue requests.

Multi-purpose navigation device according to the present invention is composed of a fixed part and a portable portable part attached to a moving body (vehicle, ship, aircraft). When the fixed part and the portable part are combined, the fixed part and the portable part are used as a navigation device for a moving object, and are used as a portable navigation device when separated. In this case, since the wireless terminal is mounted on the portable unit, location information for rescue and rescue request can be transmitted anytime and anywhere. The user can be provided with the navigation function even when only the portable part is carried while walking, and the portable part is mounted on the fixed part of the movable part to be used while the mobile body is in operation.

1 is a view showing the configuration of a multi-purpose navigation apparatus for a moving body according to a preferred embodiment of the present invention.

2 is a view showing the configuration of a multi-purpose navigation apparatus for a moving body according to another embodiment of the present invention.

3 is a view showing a configuration when the portable portion and the fixed portion of the multi-purpose navigation apparatus for a moving object shown in FIG.

Figure 4 is a view showing the configuration when the portable unit of the multi-purpose navigation apparatus for a moving object shown in FIG.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view showing the configuration of a multi-purpose navigation apparatus for a mobile body according to an embodiment of the present invention, Figure 2 is a view showing the configuration of a multi-purpose navigation apparatus for a mobile body according to another embodiment of the present invention.

1 and 2, the portable unit 100 includes a satellite navigation receiver 110, a navigation controller 120, a wireless terminal 130, an input / output unit 140, an auxiliary memory unit 150, and a battery 160 to provide a satellite navigation function. According to an embodiment of the present disclosure, the fixing unit 200 includes a dead reckoning sensor unit 210, a navigation controller 220, and a charging unit 230, and according to another embodiment, the dead reckoning sensor unit 210, a navigation controller 220, a charging unit 230, and an auxiliary storage unit 240. And an input / output unit 250 to provide a dead reckoning function.

The portable unit 100 may be used as a navigation device for a mobile unit by being coupled to the fixed unit 200 installed in the mobile unit, and may be separated from the fixing unit 200 and used as a portable navigation unit in the case of a user walking. When the multi-purpose navigation apparatus of the present invention is used as a portable navigation apparatus, the navigation control unit 120 of the portable unit 100 transmits satellite navigation information (location information and speed information of the mobile body) received by the satellite navigation receiver 110 to its auxiliary storage unit 150. Along with the stored database information (map and route information) is controlled to display on the display unit of its input and output unit 140. When the multi-purpose navigation apparatus of the present invention is used as a navigation apparatus for a moving object, the navigation control unit 120 of the portable unit 100 provides the estimated navigation information detected by the dead navigation sensor unit 210 of the fixed unit 200 from the navigation control unit 220 of the fixed unit 200. The error value of the dead reckoning information is compensated by the satellite navigation information received by the satellite navigation receiver 110 and controlled to be displayed on the display unit of the input / output unit 140 together with the database information stored in the auxiliary memory unit 150. In this case, according to another exemplary embodiment, the compensated navigation information may be displayed on the display unit of the input / output unit 250 of the fixed unit 200.

As described above, the multi-purpose navigation apparatus according to the present invention does not have all of the same components in each of the portable unit 100 and the fixed unit 200, but the minimum components (satellite navigation receivers) for performing the satellite navigation function and the dead reckoning function. 110, the navigation control unit 120, the dead reckoning sensor unit 210, the navigation control unit 220 is provided only in each of the components that can be used in common, the wireless terminal unit 130, the input / output unit 140 and the auxiliary memory unit 150 is only inside the portable unit 100 It is provided and comprised. According to another embodiment of the present invention, the auxiliary memory unit 240 and the input / output unit 250 are also provided inside the fixing unit 200, but these are additionally configured for the convenience of the user.

Hereinafter, the configuration of the multipurpose navigation apparatus for a moving object according to the present invention will be described in more detail with reference to FIGS. 1 and 2. Multi-purpose navigation apparatus according to another embodiment of the present invention is configured to include the same as the components of the multi-purpose navigation apparatus according to an embodiment, and further comprises an auxiliary memory unit 240 and input and output unit 250, For convenience of description, only the multi-purpose navigation apparatus according to another embodiment of the present invention will be described with reference to FIG. 2.

Referring to FIG. 2, the portable unit 100 receives a satellite signal and obtains a satellite navigation receiver 110 for obtaining a position and a speed for a moving object (combined) or a user (when disconnected), and a wireless terminal capable of making a rescue and rescue request. The controller 130 includes an input / output unit 140 for performing command input / output with a user and displaying navigation information, an auxiliary storage unit 150 required for a navigation function, and a navigation controller 120 for processing and controlling information. The input / output unit 140 is an input / output unit corresponding to a display unit that may be configured as a liquid crystal display (LCD) or a cathode ray tube (CRT) monitor, and an operation unit that may be configured as a keyboard or a touch screen. . The input / output unit 140 displays the current position and speed of the moving object and other navigation information (route guidance, current position storage), etc. using a map, text, voice, etc., and is operated by a user and inputs a command according to the operation. The auxiliary storage unit 150 stores database information used for navigation information processing and includes map and route information necessary for navigation display. The satellite navigation receiver 110 receives a GPS or similar satellite signal (GLONASS signal) and provides location and velocity information of the mobile or user. The navigation controller 120 controls each component of the portable unit 100 and displays the location and speed information obtained from the satellite navigation receiver 110 on the input / output unit 140 using the database information stored in the auxiliary memory unit 150.

The fixed unit 200 includes a dead reckoning sensor unit 210 including distance sensors such as an accelerometer, a odometer, a speedometer, an altimeter, azimuth sensors such as a gyro, a compass, and an inclination machine, an additional auxiliary storage unit 240 storing database information, And an additional input / output unit 250 and a navigation control unit 220 for controlling the same. Sensors included in the dead reckoning sensor unit 210 are preferably used only according to the characteristics of the moving object. For example, the dead reckoning sensor unit 210 may be configured as a "travel odometer and a gyro" or an "accelerometer and a gyro" in the case of a vehicle, and a "speedometer and a gyro" in a ship. The additional auxiliary storage unit 240 includes additional database information required according to the characteristics of the moving object. For example, in the case of a vehicle, the additional auxiliary storage unit 240 may additionally store detailed road information, route information, route guidance, and voice guidance information, and in case of a ship, additional shoreline information or chart may be additionally stored. The additional input / output unit 250 means an input / output unit that can be additionally mounted. The additional input / output unit 250 may be more convenient to a user with a joystick or a voice recognizer instead of a keyboard or a touch screen in a vehicle. The charging unit 230 is included in the portable unit 100 to charge the rechargeable battery 160 for supplying the operating power to be used when carrying. Although not shown in the drawing, each of the internal components of the fixing part 200 is supplied with a power supply voltage.

FIG. 3 is a view illustrating a configuration when the portable unit and the fixed unit of the multipurpose navigation apparatus for a moving object shown in FIG. 2 are combined.

Referring to FIG. 3, the position and velocity information from the satellite navigation receiver 110 is transmitted to the navigation controller 120 of the portable unit 100, and the detected dead navigation sensor measurement from the dead navigation sensor 210 is measured by the navigation controller 220 of the fixed unit 200. Is passed to. Navigation controllers 120 and 220 perform hybrid navigation using the two pieces of information. In places where satellite signals do not reach, such as building forests, tunnels, underground parking lots, and under bridges, or where the accuracy of satellite location information is low, the accuracy of satellite location information is increased or supplemented using information from the dead reckoning sensor 210. . In addition, a function of estimating and compensating for error values of the dead reckoning sensor using satellite navigation information is also performed.

When the portable unit 100 and the fixed unit 200 are combined, the display unit / operator unit 140 of the portable unit 100 and the display unit / operator unit 250 of the fixed unit 200 are used simultaneously. The display unit / manipulator 250 of the fixed unit 200 is an additional display unit / manipulator that is adapted to the characteristics of the mounted mobile unit and refers to an input / output unit that meets the needs of the mobile unit, such as a joystick or a voice recognizer. The database also has a dual structure for portable and mobile objects. For mobile vehicles, more accurate map data and detailed road information (lane turn limit, speed limit, road type), and additional information needed for route guidance, route search, and voice guidance are stored in the fixed part 200's database compared to handheld. Done. The navigation controllers 120 and 220 control each component, perform a user's command input through the operation unit, transmit navigation information to the user, and transmit an emergency and rescue request to the wireless terminal 130 according to the user's command.

FIG. 4 is a view illustrating a configuration when the portable unit of the multipurpose navigation apparatus for a moving object shown in FIG. 2 is separated.

Referring to FIG. 4, since the position and velocity information are provided only from the satellite navigation receiver 110, only satellite navigation is performed, not mixed navigation. The display / operation unit 140 includes a display unit and an operation unit suitable for the size and power consumption characteristics of the portable unit 100. The database 150 also contains only navigational information without unnecessary information. However, since the portable unit 100 includes the wireless terminal 130, the portable unit 100 may transmit an emergency and rescue request according to a user's command through the operation unit.

As described above, the present invention improves the reliability and accuracy of location information and convenience of the user by suggesting a multi-purpose navigation apparatus using hybrid navigation at the time of combining and satellite navigation at the time of separation. Make it easy. Existing navigation system alone will not be able to determine the exact location in places where satellite navigation is not possible.When using a navigation system for mobile vehicles using mixed navigation, the location accuracy will be higher, but it will be used while walking outdoors or on the street. Couldn't.

However, when using the multi-purpose navigation apparatus that can be combined and separated in the present invention, all the advantages of each navigation system can be utilized, and in the event of an emergency, a wireless terminal for rescue and rescue requests can be made as a single device in both cases. It is convenient to use and has the advantage of maximizing resource efficiency. In addition, the database required for navigation information generation or the screen display / manipulator can be configured in a double manner, so that the structural characteristics according to the purpose of use can be considered to the maximum.

Claims (13)

A fixed part installed in the moving object and providing a dead reckoning function, And a portable unit capable of being separated / coupled from / to the fixed unit and providing a satellite navigation function upon separation and providing a navigation function in consideration of the satellite navigation function and the dead reckoning function. According to claim 1, The portable unit, A satellite navigation receiver for receiving satellite navigation information indicating a position and a speed of the mobile unit; An auxiliary memory unit for storing database information including map and route information; A display unit for displaying navigation information, An operation unit operated by a user and for inputting a command according to the operation; The database information and the satellite navigation information is displayed on the display unit when separated, and when combined, the navigation information for the mobile body is determined by receiving the satellite navigation information and the dead reckoning information provided from the fixed unit. And a navigation control unit for controlling to display the database information on the display unit. The navigation system of claim 2, wherein the navigation control unit compensates the error value of the estimated navigation information by using the satellite navigation information and determines the navigation information for the mobile unit when coupled to the fixed unit. Device. The navigation apparatus of claim 2, wherein the portable unit further comprises a wireless terminal unit for transmitting and receiving radio signals for rescue and rescue requests. The method of claim 1, wherein the fixing unit, A dead reckoning sensor unit including sensors for detecting dead reckoning information indicating a position and a speed of the moving object; And a navigation controller for providing the dead reckoning information to the portable unit when the portable unit is coupled. The method of claim 5, wherein the fixing unit, And an auxiliary memory unit for storing database information including map and route information. The method of claim 5, wherein the fixing unit, A display unit for displaying navigation information, And a manipulator for being operated by a user and inputting a command according to the manipulation. The method of claim 1, The portable unit further includes a rechargeable battery for supplying operating power, The fixed part receives a power supply voltage, and further comprises a charging unit for charging the rechargeable battery when the portable unit is coupled. In the navigation device for a mobile body consisting of a fixed portion installed on the movable body and a portable portion that can be coupled to / separated from the fixed portion: The portable unit; A satellite navigation receiver for receiving satellite navigation information indicating a position and a speed of the mobile unit; An auxiliary memory unit for storing database information including map and route information; A display unit for displaying navigation information, An operation unit operated by a user and for inputting a command according to the operation; The database information and the satellite navigation information is displayed on the display unit when separated, and when combined, the navigation information for the mobile body is determined by receiving the satellite navigation information and the dead reckoning information provided from the fixed unit. A first navigation control unit for controlling to display the database information on the display unit; The fixing unit; A dead reckoning sensor unit including sensors for detecting dead reckoning information indicating a position and a speed of the moving object; And a second navigation controller for providing the dead reckoning information to the portable unit when the portable unit is coupled. The navigation system of claim 9, wherein the first navigation controller compensates the error value of the estimated navigation information by using the satellite navigation information when the portable unit is coupled to the fixed unit, and determines the navigation information for the mobile body. Navigation device for moving object. The navigation apparatus of claim 9, wherein the portable unit further comprises a wireless terminal unit for transmitting and receiving a radio signal for a rescue and rescue request. The method of claim 9, wherein the fixing unit, An additional display unit for displaying navigation information; And an additional operation unit for operating a user and inputting a command according to the operation. The method of claim 9, The portable unit further includes a rechargeable battery for supplying operating power, The fixed part receives a power supply voltage, and further comprises a charging unit for charging the rechargeable battery when the portable unit is coupled.