TWI420078B - Mehtod for adjusting navigation frame, navigation apparatus and computer program product - Google Patents

Description

Navigation screen adjustment method, navigation device and computer program product

The present invention relates to a navigation screen adjustment method and a navigation device, and more particularly to a method and a navigation device for adjusting a navigation screen perspective to display a window of a received event.

In recent years, with the evolution and improvement of electronic technology and communication technology, mobile devices, personal digital assistants (PDAs), and other mobile devices that do not take up space and can be carried around are also being introduced. Currently, mobile devices on the market do not integrate diverse functions to enhance their competitiveness. In addition to the general camera, call and Internet functions, the positioning system is now combined with electronic maps to accurately locate the user's location on the map. Using navigation software to plan routes and provide guidance can further help users find the best route and get to their destination quickly and safely.

With the difference between the starting point and the ending point defined by the user, the route planned by the navigation software will also change considerably. If the distance between the starting point and the ending point is too far, it will cover a considerable range of maps. In order to be able to present the details of the map and the navigation path as clearly as possible without affecting the range of the map identifiable by the user, the navigation software generally adaptively adjusts the display scale and range of the map, and only displays the map near the current location of the device. And the navigation path, and the map is presented in front of the user in a full screen display, so that the user can see the navigation path at a glance.

In the process of displaying the map in full screen mode by the navigation software, the mobile device may still receive incoming calls, text messages, instant messages or emails. At this time, the mobile device can generally only pause the navigation function or close the navigation screen to call the corresponding operation window to respond, thereby enabling the user to respond to the received event. However, this action of pausing the navigation function or turning off the navigation screen is very likely to affect the user's judgment on the driving route, thereby causing the situation to drive to the wrong lane or miss the turning opportunity, and the connection will also affect the safety of the driving. Sex.

The invention provides a navigation screen adjustment method, which is convenient for a user to respond to a received event by adaptively adjusting a viewing angle of the navigation screen.

The present invention provides a navigation device capable of displaying a window corresponding to a received event without affecting the navigation function.

The invention provides a navigation screen adjustment method, which is suitable for a mobile device including a screen. The method displays a navigation screen on a screen in a three-dimensional form, and automatically adjusts the angle of view of the navigation screen to cause navigation when an event is received as an incoming call. The size of the screen is reduced, wherein when the size of the navigation screen is reduced, the map range displayed by the navigation screen is maintained, and an operation window for answering the incoming call is displayed on the screen in the area where the navigation screen is reduced, and at the end of the call. , close the operation window, and adjust the angle of view of the navigation screen back to the original perspective to restore the navigation screen to the original size.

In an embodiment of the invention, the window may include an operation window or Browse the window.

In an embodiment of the invention, the step of displaying the navigation screen in a three-dimensional form includes displaying the navigation screen in the form of a bird eye view, including displaying a plurality of objects of the navigation screen on a plane of the bird's-eye view. , and

In an embodiment of the present invention, the step of displaying the navigation screen in a three-dimensional form includes displaying the navigation screen in the form of a curved map, including displaying a plurality of objects of the navigation screen on a curved surface of the curved map. These objects are scaled and displayed according to the relative distance between the map position of each object and the current position of the mobile device.

In an embodiment of the present invention, before the step of receiving the event, the method further includes: detecting a tilt of the mobile device, and determining whether the tilt falls within a preset range, and when the tilt falls on the preset The event is triggered when the range is within.

In an embodiment of the invention, the step of receiving an event comprises receiving a text message, an instant message or an email.

In an embodiment of the invention, the step of receiving an event comprises receiving an operation of a user to trigger an event.

In an embodiment of the present invention, the step of adjusting the angle of view of the navigation screen to reduce the size of the navigation screen further comprises displaying the reduced navigation screen in an upper area of the screen, and displaying the window by vacating the lower area of the screen. .

In an embodiment of the present invention, the step of displaying the window corresponding to the event in the area vacated by the navigation screen in the screen includes displaying the The content of the event or at least one function button or menu corresponding to the event.

In an embodiment of the present invention, after the step of displaying the window corresponding to the event, the method further includes receiving an operation action of the user on the window to perform a corresponding function.

The invention provides a navigation device comprising a positioning unit, a display unit, an input unit and a processing unit. The positioning unit is used to obtain the current location of the navigation device. The display unit is used to display a navigation screen. The input unit is for receiving the user's operation. The processing unit is coupled to the positioning unit, the input unit, and the display unit, and displays the navigation screen on the display unit in a three-dimensional manner according to the current position obtained by the positioning unit and the operation received by the input unit, and receives an event as one. When an incoming call is made, the viewing angle of the navigation screen is automatically adjusted to cause the size of the navigation screen to be reduced, and an operation window for answering the incoming call is displayed on the area vacated by the navigation screen in the display unit. Wherein, when the size of the navigation screen is reduced, the processing unit maintains the map range displayed by the navigation screen, and when the call ends, closes the operation window, and adjusts the angle of view of the navigation screen back to the original perspective to restore the navigation screen to the original size.

The invention provides a computer program product for performing the above-mentioned navigation screen adjustment method. The computer program product is basically composed of a plurality of code segments (for example, establishing an organization chart code segment, signing a form code segment) , setting a code segment, and deploying the code segment), and after the code segment is loaded into the mobile device and executed, the steps of the navigation screen adjustment method and the function of the navigation device are completed. can.

Based on the above, the navigation screen adjustment method, the navigation device, and the computer program product of the present invention are vacated on the screen by adaptively adjusting the angle of view of the navigation screen when the mobile device receives an external event or an event triggered by the user. An area to display the corresponding window, so that the user can respond to and respond to the event without affecting the navigation function.

The above described features and advantages of the present invention will be more apparent from the following description.

In the case where the mobile device displays the navigation screen in a three-dimensional form, the present invention adaptively adjusts the angle of view of the navigation screen corresponding to the received event, thereby freeing the screen space to display the window corresponding to the event. Thereby, the present invention can provide a convenient way for the user to respond to an external event or operate on an event triggered by itself without affecting the navigation function.

FIG. 1 is a block diagram of a navigation device according to an embodiment of the invention. Referring to FIG. 1, the navigation device 100 includes a positioning unit 110, a display unit 120, an input unit 130, and a processing unit 140, which can provide a response or operation of a triggered event by a user during a navigation function. The navigation device 100 is, for example, a mobile phone, a smart phone, a personal digital assistant (PDA), a personal digital assistant mobile phone, a car computer, a notebook computer, a multimedia player, a handheld game machine, without limitation. The functions of the above various components are described as follows:

The positioning unit 110 is used to obtain the current location of the navigation device 100, such as a Global Positioning System (GPS), or other Global System for Mobile Communication (GSM) system, personal handheld. Personal Handy-phone System (PHS), Code Division Multiple Access (CDMA) system, Wireless fidelity (Wi-Fi) system, Worldwide Interoperability for Microwave The communication positioning system for positioning such as an Access, WiMAX system, a radio repeater, or a radio broadcaster is not limited in this embodiment.

The display unit 120 is, for example, a liquid crystal display (LCD), a Light-Emitting Diode (LED) display, an Organic Light-Emitting Diode (OLED), and/or the like. A display that displays the navigation screen.

The input unit 130 is, for example, a mouse, a keyboard, a joystick, or a touchpad, and can receive user operations to plan a navigation path. The input unit 130 can also be a resistive, capacitive or other kind of touch sensing element, and can be integrated with the display unit 120 to form a touch screen.

The processing unit 140 is, for example, a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (DSP), programmable Controller, Application Specific Integrated Circuits (ASIC), programmable logic Programmable Logic Device (PLD) or other similar device or a combination of these devices.

The processing unit 140 is coupled to the positioning unit 110, the display unit 120, and the input unit 130, and can adjust the viewing angle of the navigation screen displayed by the display unit 120 according to the received event. The navigation device 100 is adjusted according to an embodiment. Detailed steps for navigating the screen.

2 is a flow chart of a navigation screen adjustment method according to an embodiment of the invention. Referring to FIG. 2, the method of the present embodiment is applied to the navigation device 100 of FIG. 1. Hereinafter, the detailed steps of the navigation screen adjustment method of the present invention are described in conjunction with the components in the navigation device 100:

First, the navigation device 100 displays the navigation screen on the display unit 120 in a three-dimensional form by the processing unit 140 (step S210). For example, the navigation device 100 performs positioning by using the positioning unit 110 to obtain the current location where the user is located, and receives the destination input by the user by using the input unit 130. Finally, the processing unit 140 can use the current location as a starting point. , the destination location is used as the destination, and the navigation route is planned.

It should be noted that, when displaying the navigation screen, the processing unit 140 displays a plurality of objects of the navigation screen on a plane of the bird's-eye view, for example, in the form of a bird eye view; the processing unit 140 also uses a curved surface, for example. A map is displayed in the form of a map, and a plurality of objects of the navigation screen are displayed on the curved surface of the bird's eye view. Wherein, when the object is displayed, the processing unit 140 displays the scaled object on the plane of the bird's-eye view or the curved map according to the relative distance between the map position of each object in the navigation screen and the current position of the mobile device. On the surface. In short, it is located The object at the near end of the screen is large enough for the user to view the details of the map or object, while the object at the far end of the screen is small, allowing the user to view a larger map or path.

For example, FIG. 3 and FIG. 4 are respectively examples of navigation screens according to an embodiment of the invention. Referring to FIG. 3 and FIG. 4, the navigation screen 300 is displayed in a bird's-eye view form, and the navigation screen 400 is displayed in the form of a curved map, wherein the navigation screens 300 and 400 are displayed in a three-dimensional manner. The map plane in its picture has an oblique angle with respect to the screen plane, thus allowing the map to be presented on the screen at a particular angle of view. In addition, the objects located under the navigation screens 300, 400 will be enlarged, and the objects above the navigation screens 300, 400 will be reduced, so that the user can feel the distance between the objects by the size of the objects.

Going back to step S210, in the process of displaying the navigation screen by the display unit 120, if an event is received (step S220), including an external event such as a phone call, a short message, an instant message or an email, or an event triggered by the user, The processing unit 140 immediately adjusts the angle of view of the navigation screen, thereby causing the size of the navigation screen to be reduced (step S230), and an area is vacated on the screen. It should be noted that, in an embodiment, when the size of the navigation screen is reduced, the processing unit 140 still substantially maintains the map range displayed by the navigation screen, that is, the processing unit 140 only adjusts the angle of view of the navigation screen. The display range of the screen will not be adjusted. Since the display range of the navigation screen does not change, while adjusting the angle of view of the navigation screen, the effect of reducing the size of the navigation screen due to the change in the angle of view is generated, and further An area was vacated on the screen.

After adjusting the navigation screen, the processing unit 140 further displays the window corresponding to the received event on the area vacated by the navigation screen in the screen (step S240), including, for example, an operation window or a browsing window of the received event. Accordingly, the navigation device 100 can provide a convenient way for the user to respond to the received or triggered event without affecting the navigation function.

It is worth mentioning that the navigation device 100 of the present invention can adjust the navigation screen according to events triggered by different manners for the user to respond. Hereinafter, the case where the navigation device 100 receives an external event or the event is triggered by the user will be described as an embodiment.

FIG. 5 is a block diagram of a navigation device according to an embodiment of the invention. Referring to FIG. 5 , the navigation device 500 includes a positioning unit 510 , a display unit 520 , an input unit 530 , a communication unit 540 , a sensing unit 550 , and a processing unit 560 . The functions of the positioning unit 510, the display unit 520, and the input unit 530 are the same as those of the positioning unit 110, the display unit 120, and the input unit 130 in the foregoing embodiments, and therefore are not described herein again.

Different from the foregoing embodiment, the navigation device 500 further configures the communication unit 540 and the sensing unit 550. The communication unit 540 is, for example, a device that uses a communication system such as GSM, PHS, CDMA, Wi-Fi, WiMAX, etc. to communicate, and can receive external events such as a phone, a short message, an instant message, or an email transmitted by the remote device. The sensing unit 550 is, for example, a G sensor, which can detect the tilt angle of the navigation device 500, and determine the user's operation action on the navigation device 500 to trigger the inside. Departmental incident.

FIG. 6 is a flowchart of a method for adjusting a navigation screen according to an embodiment of the invention. Referring to FIG. 5 and FIG. 6 simultaneously, when the navigation device 500 receives an external event, the viewing angle and size of the displayed navigation screen are automatically adjusted to display a window corresponding to the event, including, for example, an operation window or a browsing window of the received event. To achieve the convenience of the user to respond, the steps are as follows:

First, the navigation screen is displayed on the display unit 520 by the processing unit 560 in a three-dimensional form (step S610). The navigation device 500 obtains the current location where the user is located by using the positioning unit 510, and receives the destination input by the user by using the input unit 530. The processing unit 560 uses the current location as a starting point and the destination location as the destination location. End point, and plan the navigation route.

Next, an externally transmitted event (step S620), such as a phone call, a text message, an instant message, or an email, is received by the communication unit 540. The communication unit 540 transmits the event to the processing unit 560 for subsequent processing after receiving the foreign event.

After receiving the event, the processing unit 560 adjusts the angle of view of the navigation screen, thereby causing the size of the navigation screen to be reduced (step S630), and vacating an area on the screen. Wherein, when the processing unit 560 reduces the size of the navigation screen, the processing unit 560 still substantially maintains the map range displayed on the navigation screen.

After adjusting the navigation screen, the processing unit 560 further narrows the vacated area by the navigation screen in the screen according to the type of the received event. A window corresponding to the received event is displayed on the domain (step S640). For example, the window is displayed by the processing unit 560 according to the type of the event, and displays the content of the event or displays at least one function button or a menu corresponding to the event. For example, when the received event is an incoming call, the processing unit 560 displays the incoming call number or contact and the operating window of the incoming call in the area where the screen is empty. For another example, when the received event is a short message, the processing unit 560 displays a browsing window including the message sender and the content of the newsletter in the area where the screen is empty. Further, the processing unit 560 displays, for example, the reduced navigation screen on the upper area of the screen, and vacates the lower area of the screen to display the window corresponding to the received event.

For example, FIG. 7A and FIG. 7B are diagrams illustrating an example of adjusting a navigation screen according to an embodiment of the invention. Referring to FIG. 7A first, the navigation screen 710 is displayed in the form of a bird's-eye view, which is displayed, for example, according to the distance between the object in the map and the current position, from the farthest to the farthest in the screen of the navigation device. Provided to the user for inspection. Referring to FIG. 7B, when the navigation device receives the incoming call, the viewing angle of the navigation screen 710 is automatically adjusted to cause the size of the navigation screen 710 to be reduced, and the reduced navigation screen 710 is displayed in the upper region of the screen. At the same time, the navigation device also displays an operation window 720 corresponding to the incoming call in the lower area of the screen, which includes displaying the name and/or telephone number of the incoming caller for the user to respond (answer or reject).

It is worth mentioning that while the navigation device 500 displays the adjusted navigation screen and the operation window, the input unit 530 continues to receive the user's operation action on the operation window to perform the corresponding function. If you answer or reject the call. In one embodiment, when the user approaches the screen, the user answers the call; and when the user rolls the hand over the screen, the call is rejected. In addition, the navigation device 500 also closes the operation window at the end of the event (for example, the end of the call), and adjusts the angle of view of the navigation screen back to the original perspective to restore the navigation screen to the original size.

The above events can also be triggered by the user, meaning that the user wants to call out the operating window or browse window. FIG. 8 is a flowchart of a method for adjusting a navigation screen according to an embodiment of the invention. Referring to FIG. 5 and FIG. 8 simultaneously, when the navigation device 500 receives the event triggered by the user, the viewing angle and size of the displayed navigation screen are automatically adjusted to display the operation window corresponding to the event, so as to facilitate the user to respond. The efficacy of the steps are as follows:

First, the navigation screen is displayed on the display unit 520 by the processing unit 560 in a three-dimensional form (step S810). The navigation device 500 obtains the current location where the user is located by using the positioning unit 510, and receives the destination input by the user by using the input unit 520. The processing unit 560 uses the current location as a starting point and the destination location as the destination location. End point, and plan the navigation route.

Next, the navigation device 500 detects the inclination of itself by using the sensing unit 550 (step S820), and transmits the detected inclination to the processing unit 560, and the processing unit 560 determines whether the inclination falls within a pre-processing. Within the range (step S830), for example, 15 to 20 degrees. If the processing unit 560 determines that the tilt does not fall within the preset range, then returns to step S620 to continue detecting the tilt; if the processing unit 560 determines that the tilt falls Within the preset range, an event is triggered, and the angle of view of the navigation screen is adjusted, thereby causing the size of the navigation screen to be reduced (step S840), and an area is vacated on the screen. The processing unit 560 still substantially maintains the map range displayed on the navigation screen when the size of the navigation screen is reduced.

After the navigation screen is adjusted, the processing unit 560 displays an operation window corresponding to the triggered event on the area where the navigation screen is reduced by the navigation screen (step S850). The operation window is, for example, a function button or a menu for the user to trigger an event according to the detection of the sensing unit 550 by the processing unit 560. For example, when the event triggered by the user is to make a call, the processing unit 560 displays the dialed button or the address book menu in the area where the screen is empty for the user to operate.

In other embodiments, the navigation device 500 can also detect whether the user triggers an event by using other methods, that is, calling the operation window or browsing the window. The detection method may include detecting the motion of the user's hand by using various sensors, including a light sensor, a proximity sensor, an infrared sensor, a camera, a touch panel, a touch screen, and the like. To confirm whether the user needs to trigger an event to call out the operation window or browse window. The user can also use the hardware button or software button to call out the operating window or browse window, or use various other methods to trigger an event to call the window without limiting its scope.

For example, FIG. 9A and FIG. 9B are diagrams illustrating an example of adjusting a navigation screen according to an embodiment of the invention. Referring first to FIG. 9A, the navigation screen 910 is displayed in a bird's-eye view form, for example, according to the distance between the object in the map and the current position, which is displayed from the near to the far in the screen of the navigation device. Small objects are provided for viewing by the user. Next, referring to FIG. 9B, when the navigation device determines the user trigger event, the viewing angle of the navigation screen 910 is automatically adjusted to reduce the size of the navigation screen 910, and the reduced navigation screen 910 is displayed in the upper region of the screen. At the same time, the navigation device also displays a corresponding operation window 920 in the lower area of the screen, including a function button 930 for displaying the phone book for the user to open the phone book to make a call.

It is worth mentioning that while the navigation device displays the adjusted navigation screen and the operation window, the input operation unit continuously receives the user's operation action on the operation window to perform a corresponding function, such as dialing the phone. In addition, the navigation device also closes the operation window at the end of the event (for example, the end of the call), and adjusts the angle of view of the navigation screen back to the original perspective to restore the navigation screen to the original size.

The present invention further provides a computer program product for performing the steps of the above navigation screen adjustment method. The computer program product is basically composed of a plurality of code segments (for example, establishing an organization chart code segment, signing a core After the form code segment, the set code segment, and the deployment code segment, and the code segments are loaded into the navigation device and executed, the steps of the navigation screen adjustment method and the functions of the navigation device can be completed.

In summary, the navigation screen adjustment method, the navigation device, and the computer program product of the present invention detect an externally transmitted event or an event triggered by a user while displaying a navigation screen, thereby adjusting the displayed navigation screen. The angle of view, which in turn causes the navigation screen to shrink in size and display the event The corresponding window can provide a convenient way for the user to operate the navigation device without affecting the navigation function.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100, 500‧‧‧ navigation devices

110, 510‧‧‧ Positioning unit

120, 520‧‧‧ display unit

130, 530‧‧‧ input unit

140, 560‧ ‧ processing unit

300, 400‧‧‧ navigation screen

540‧‧‧Communication unit

550‧‧‧Sensor unit

710, 910‧‧‧ navigation screen

720, 920‧‧‧ operation window

930‧‧‧ function buttons

S210~S240‧‧‧ steps of the navigation screen adjustment method according to an embodiment of the present invention

S810~S850‧‧‧ steps of the navigation screen adjustment method according to an embodiment of the present invention

FIG. 1 is a block diagram of a navigation device according to an embodiment of the invention.

2 is a flow chart of a navigation screen adjustment method according to an embodiment of the invention.

FIG. 3 is an illustration of a navigation screen according to an embodiment of the invention.

FIG. 4 is an illustration of a navigation screen according to an embodiment of the invention.

FIG. 5 is a block diagram of a navigation device according to an embodiment of the invention.

FIG. 6 is a flowchart of a method for adjusting a navigation screen according to an embodiment of the invention.

7A and 7B illustrate an example of adjusting a navigation screen according to an embodiment of the invention.

FIG. 8 is a flowchart of a method for adjusting a navigation screen according to an embodiment of the invention.

9A and 9B illustrate an example of adjusting a navigation screen according to an embodiment of the invention.

S210~S240‧‧‧ steps of the navigation screen adjustment method according to an embodiment of the present invention

Claims (28)

A navigation screen adjustment method is applicable to a mobile device including a screen, the method comprising the steps of: displaying a navigation screen on the screen in a three-dimensional form; receiving an event; when the received event is an incoming call, Automatically adjusting a viewing angle of the navigation screen to reduce the size of the navigation screen, wherein when the size of the navigation screen is reduced, one of the map ranges displayed by the navigation screen is maintained; and an operation window for receiving the incoming call is displayed on the screen An area that is vacated by the navigation screen; and when the call ends, the operation window is closed, and the angle of view of the navigation screen is adjusted back to the original view to restore the navigation picture to the original size. The method of claim 1, wherein the window comprises an operation window or a browsing window. The method of claim 1, wherein the step of displaying the navigation screen on the screen in the three-dimensional form comprises: displaying the navigation screen in the form of a bird eye view, including displaying the navigation A plurality of objects of the picture are on a plane of the bird's eye view. The method of claim 3, wherein the displaying the objects of the navigation screen on the plane of the bird's eye view comprises: according to a map location of each of the objects and a current location of the mobile device A relative distance between the zoom shows the object on the plane of the bird's eye view. The method of claim 1, wherein the step of displaying the navigation screen on the screen in the three-dimensional form comprises: displaying the navigation screen in the form of a curved map, including displaying the navigation screen A plurality of objects are on a curved surface of the curved map. The method of claim 5, wherein the displaying the objects of the navigation screen on the curved surface of the curved map comprises: according to a map location of each of the objects and a current location of the mobile device A relative distance between the zoom displays the object on the surface of the surface map. The method of claim 1, wherein before the step of receiving the event, the method further comprises: detecting an inclination of the mobile device; determining whether the inclination falls within a preset range; and when The event is triggered when the tilt falls within the preset range. The method of claim 1, wherein the step of receiving the event comprises receiving a short message, an instant message or an email. The method of claim 1, wherein the step of receiving the event comprises: receiving an operation of a user to trigger the event. The method of claim 1, wherein the step of adjusting the view angle of the navigation screen to reduce the size of the navigation screen further comprises: The reduced navigation screen is displayed in an upper area of the screen to vacate the lower area of the screen. The method of claim 10, wherein the step of displaying the area corresponding to the window in the screen that is vacated by the navigation screen comprises displaying the window in the lower area of the screen. The method of claim 1, wherein the step of displaying the area corresponding to the window in the screen that is vacated by the navigation screen comprises displaying a content of the event or displaying the event corresponding to the window. At least one function button or a menu. The method of claim 1, wherein after the step of displaying the window corresponding to the event in the screen by the navigation screen is reduced, the method further comprises: receiving a user for the window An operational action to perform a corresponding function. A computer program product loaded into the program via a mobile device to perform the following steps: displaying a navigation screen on the screen in a three-dimensional form; receiving an event; automatically adjusting the navigation when the received event is an incoming call a viewing angle of the screen to reduce the size of the navigation screen, wherein when the size of the navigation screen is reduced, one of the map ranges displayed by the navigation screen is maintained; and an operation window for receiving the incoming call is displayed in the screen by the guide The air picture is reduced by an area that is vacated; and when the call ends, the operation window is closed, and the angle of view of the navigation screen is adjusted back to the original view to restore the navigation picture to the original size. A navigation device includes: a positioning unit that acquires a current position of the navigation device; a display unit that displays a navigation screen; an input unit that receives an operation of a user; and a processing unit coupled to the positioning unit The input unit and the display unit display a navigation screen on the display unit in a three-dimensional form according to the current position acquired by the positioning unit and the operation received by the input unit, and receive an event as an incoming call. Automatically adjusting a viewing angle of the navigation screen to reduce the size of the navigation screen, and displaying an operation window for receiving the incoming call in an area of the display unit that is reduced by the navigation screen, wherein the navigation screen is reduced. The processing unit maintains one of the map ranges displayed on the navigation screen, and when the call ends, closes the operation window, and adjusts the angle of view of the navigation screen back to the original perspective to restore the navigation screen to the original size of. The navigation device of claim 15, wherein the window comprises an operation window or a browsing window. The navigation device of claim 15, wherein the processing unit displays the navigation screen on the display unit in a bird's-eye view form, wherein the plurality of objects displaying the navigation screen are displayed on a plane of the aerial view. on. The navigation device of claim 17, wherein the navigation device The processing unit zooms and displays the object on the plane of the bird's eye view according to a relative distance between a map location of each of the objects and a current location of the mobile device. The navigation device of claim 15, wherein the processing unit displays the navigation screen in a form of a curved map, wherein the plurality of objects displaying the navigation screen are displayed on a curved surface of the curved map. The navigation device of claim 19, wherein the processing unit zooms and displays the object on the curved map according to a relative distance between a map location of each of the objects and the current location of the mobile device. On the surface. The navigation device of claim 15, further comprising: a sensing unit coupled to the processing unit to detect an inclination of the mobile device and transmitting to the processing unit, wherein the processing unit determines The event is triggered when the tilt falls within a preset range. The navigation device of claim 15, further comprising: a communication unit coupled to the processing unit, receiving the incoming call, a short message, an instant message or an email to trigger the event and transmitting to the processing unit. The navigation device of claim 15, wherein the input unit further comprises receiving an operation of a user to trigger the event. The navigation device of claim 15, wherein the processing unit comprises displaying the reduced navigation screen on an upper portion of the display unit to free a lower portion of the display unit. The navigation device of claim 24, wherein the processing unit comprises the window displaying the window in the lower region of the display unit. The navigation device of claim 15, wherein the window of the event comprises a content showing the event or at least one function button or a menu corresponding to the event. The navigation device of claim 15, wherein the input unit further comprises receiving an operation action of the user on the window and transmitting the operation to the processing unit, and the processing unit performs a corresponding function. A navigation system includes: a display tool for displaying a navigation screen in a three-dimensional form; a receiving tool for receiving an event; and an adjustment tool for receiving the event as an incoming call when the receiving tool receives the event Automatically adjusting a view angle of the navigation screen to reduce the size of the navigation screen, wherein when the size of the navigation screen is reduced, the processing unit maintains a map range displayed by the navigation screen; and a menu tool for Displaying an operation window for answering the incoming call in an area of the display tool that is vacated by the navigation screen, and at the end of the call, closing the operation window and adjusting the viewing angle of the navigation screen back to the original perspective Reply to the navigation screen to the original size.