TWI408340B - Mehtod for displaying navigation route, navigation apparatus and computer program product - Google Patents

Abstract

A method and a mobile apparatus for recording parking information and a computer program product using the method are provided. In the present method, a current location of a mobile device is detected and a triggering signal is detected. When the triggering signal is detected, a parking information page with a parking image is generated according to an electronic map of the current location of the mobile device, and the current location of the mobile device is detected and used as a parking location indicated in the parking information page.

Description

Navigation path display method, navigation device and computer program product

The present invention relates to a navigation path display method and a navigation device, and more particularly to a method and a navigation device for displaying map information related to a navigation path.

The Global Position System (GPS) combines satellite and wireless technologies to provide users with accurate positioning, speed and time information. At present, GPS has been widely used in mobile devices on the market, such as mobile phones, personal digital assistants, and computer computers. In addition to providing traditional positioning functions, this type of GPS-equipped mobile device can also implement advanced functions such as path planning, voice navigation, and sight search if it is paired with electronic maps and navigation software, which can help users solve problems. problem.

The conventional navigation device has a built-in smart electronic map and has path planning and navigation functions. The user only needs to input the name or coordinates of the destination to be visited in the navigation device, or directly click on the electronic map to select a specific location, and the navigation device will be based on the measured current location and the destination entered by the user. The geographic location is used to plan the navigation path and a voice message is sent to guide the user to the destination according to the planned navigation path.

However, in order to provide users with detailed map information, the general electronic map is often mixed with quite complicated content, except for the basic road map, the road name of each road, and all the points of interest on the screen (Point of Interest, POI), such as gas stations, convenience stores, restaurants and attractions, as well as buildings and other signs, if coupled with the north arrow, scale, volume adjustment, starting point setting, 2D / 3D switching and other function buttons, almost Fill the entire screen. When the navigation function is actually executed, the navigation path is also mixed in these indications and buttons, thereby affecting the user's judgment on the navigation path. As a result, users often have to pay attention to the wrong signs or lost paths, and the wrong lanes or missed turning moments will affect the safety of driving.

The present invention provides a navigation path display method, which can provide a more clear path guidance for a user by displaying necessary map information related to a navigation path.

The present invention provides a navigation device that can display the road name of the current road and the next road in the navigation path and the reference target located at the turning point only on the navigation map, so as to prevent the navigation path from being interfered or obscured by other map information.

The invention provides a navigation path display method, which is suitable for a mobile device including a screen, which detects the location of the mobile device, receives the starting point and the ending position, and accordingly plans the navigation path, and then accesses the electronic map database, and The navigation map is displayed on the screen according to the electronic map database, wherein the navigation map only displays the map information associated with the navigation path in the electronic map database, and includes only indicating the location of the navigation device and the location of the mobile device. The current road and the name of the road associated with the next road.

In an embodiment of the present invention, the step of displaying the navigation map on the screen further includes: when the current road has to be connected to the next road in a turning manner, the reference is drawn on the turning point of the current road to the next road in the navigation map. Target. Wherein the reference target comprises a point of interest, a landmark, a store or a building located at a turning point.

In an embodiment of the invention, the step of mapping the navigation map on the screen further comprises displaying a representative icon of the mobile device at the location of the mobile device. Wherein, the representative representation includes displaying a forward speed and a forward direction of the mobile device, and a speed limit of the current road showing the location of the mobile device.

In an embodiment of the invention, the step of displaying the navigation map on the screen further comprises displaying a thumbnail of the navigation path on the screen, the thumbnail including the start point, the end point, the path of the navigation path, and the location of the mobile device. mark.

In an embodiment of the present invention, after the step of displaying the thumbnail of the navigation path, the method further comprises: receiving an operation action of the user on the thumbnail, and starting the path simulation mode to move the mobile device on the navigation path. Represents the icon to simulate the navigation path.

In an embodiment of the present invention, the step of displaying the navigation map on the screen further includes indicating a distance between a current position in the navigation path and a position of the next inflection point, or indicating a path before the turning point in the navigation path and the current road. The name of the road before the intersection of the road.

In an embodiment of the invention, the step of displaying the navigation map on the screen further comprises receiving information of the congestion road segment in the navigation path, and marking the congestion road segment on the displayed navigation path. Among them, the way to mark the congested road section includes the use of preset road color or road style to indicate.

In an embodiment of the present invention, the step of accessing the electronic map database and displaying the navigation map on the screen according to the electronic map database comprises: accessing the front end portion of the navigation path according to a preset display ratio in the mobile device The surrounding map information is used to map the navigation map on the screen.

In an embodiment of the invention, the step of mapping the navigation map on the screen comprises displaying the navigation map in the form of a two-dimensional plan or a three-dimensional bird view.

In an embodiment of the invention, the display scale of the three-dimensional bird's-eye view is greater than the display scale of the two-dimensional plan view.

The invention provides a navigation device, which comprises a positioning unit, an input unit, a display unit, a storage unit and a processing unit. The positioning unit is configured to detect the location of the navigation device. The input unit is used to receive the start and end positions. The storage unit is used to store an electronic map database. The processing unit is coupled to the positioning unit, the display unit and the storage unit, and can plan a navigation path according to the starting point and the ending position received by the input unit, and access the electronic map database in the storage unit, according to the electronic The map database displays a navigation map on the display unit, wherein the navigation map only displays map information associated with the navigation path in the electronic map database, which includes only the current road and the lower portion of the navigation path and the location of the mobile device. A road-related road name.

The present invention provides a computer program product for performing the above navigation path display method. The computer program product is basically composed of a plurality of code segments (for example, creating an organization chart code segment, signing a form code segment) After the code segment is set and the code segment is deployed, and the code segments are loaded into the mobile device and executed, the steps of the navigation path display method and the functions of the navigation device can be completed.

Based on the above, the navigation path display method, the navigation device, and the computer program product of the present invention display only the map information related to the navigation path, and only indicate the current road of the mobile device and the road name associated with the next road, and A reference target at the turning point, which prevents other information on the map from confusing the navigation path and helps the user to go to the destination correctly.

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

The invention provides a navigation map which is simplified but still contains necessary information, only when the mobile device displays the navigation path, and only accesses the map information related to the navigation path in the electronic map database, thereby helping the user to focus on the navigation path. And go to the destination correctly.

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 , a storage unit 140 , and a processing unit 150 , which can provide concise map information to guide the user to the user during the navigation function. destination. 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 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 mobile communication (Global System for Mobile). Communication, GSM) system, Personal Handy-phone System (PHS), Code Division Multiple Access (CDMA) system, Wireless fidelity (Wi-Fi) system, global A communication positioning system for positioning by a Worldwide Interoperability for Microwave 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, a Field Emission Display (FED), and/or other suitable for displaying a navigation map. monitor.

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

The storage unit 140 is, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory (Flash memory), hard A disc or other similar device or combination of these devices can be used to store an electronic map database.

The processing unit 150 is, for example, a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (DSP), programmable Controllers, Application Specific Integrated Circuits (ASICs), Programmable Logic Devices (PLDs), or other similar devices or combinations of these devices.

The processing unit 150 is coupled to the positioning unit 110, the display unit 120, the input unit 130, and the storage unit 140. The navigation path can be planned according to the starting point and the ending position received by the input unit 130, and displayed on the display unit 120. The embodiment illustrates a detailed step of the navigation device 100 displaying the navigation path.

FIG. 2 is a flowchart of a navigation path display 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 path display method of the present invention are described in conjunction with the components in the navigation device 100. First, the navigation device 100 is positioned. The unit 110 detects the location of the navigation device 100 (step S202), and receives the start point and the end position by the input unit 130 (step S204), and then the navigation unit 130 plans the navigation according to the position of the start point and the end point received by the input unit 130. Path (step S206). The starting position received by the input unit 130 is, for example, the location of the navigation device 100 detected by the positioning unit 110 or a coordinate position or address input by the user, for example, or a point of interest selected in the list of points of interest. The end position is, for example, a coordinate position or address input by the user or a point of interest selected in the list of points of interest, and the range is not limited herein.

Then, when the navigation device 100 is to display the navigation path, the processing unit 150 accesses the electronic map database stored in the storage unit 140, and displays on the display unit 120 according to the data in the electronic map database. The map is displayed, wherein only the map information associated with the navigation path in the electronic map database is displayed, and the current road in the navigation path and the current road associated with the location of the navigation device 100 and the road name associated with the next road are indicated (step S208). The processing unit 150 displays the navigation path in the form of a two-dimensional plan view or a three-dimensional bird view, for example, and is not limited herein. Alternatively, the user can be switched between a two-dimensional plan view and a three-dimensional bird view. At the same time of switching, the two-dimensional plan view and the three-dimensional bird's-eye view can be displayed in different display ratios. For example, when the user switches from the two-dimensional plan view to the three-dimensional bird view, the display ratio of the three-dimensional bird's-eye view is enlarged to allow the user to More clearly identify the information in the 3D aerial view.

In detail, when the user navigates using the navigation device 100, the most important thing to know is the road at the current location and the next turning road. Therefore, the navigation device 100 of the present embodiment displays the navigation path in addition to the display. Outside the road route map associated with the navigation path, only the current road and the name of the road associated with the next road, such as the road name of the next road, are also indicated. According to this, when the user views the navigation path, the user can clearly identify the road he is currently on and the next road to be turned, without being confused and affected by other information in the map.

For example, FIG. 3 is an example of a navigation map according to an embodiment of the invention. Referring to FIG. 3, in addition to displaying the basic road map 310 and the navigation path 320, the navigation map 300 only indicates the road names of the current road (for example, Mason Street) and the next road (for example, Grove Road). According to this, the user can easily grasp the road on which he or she is going and the next road to be turned by the navigation map 300 without the wrong path or the lost direction.

With the above navigation path display method, the navigation device can present the map information related to the navigation path in the most compact manner, and help the user to quickly grasp the driving route, thereby greatly reducing the chance of taking the wrong way.

It should be noted that, in addition to the road names of the current road and the next road indicated above, the present invention may also provide other navigation-related auxiliary icons for the user's reference according to the needs of the user, and the following is another implementation. The details are explained.

FIG. 4 is a flowchart of a navigation path display method according to an embodiment of the invention. Referring to FIG. 4, the method of the present embodiment is applied to the navigation device 100 of FIG. 1. Hereinafter, the detailed steps of the navigation path display method of the present invention are described in conjunction with the components in the navigation device 100. First, the navigation device 100 is positioned. The unit 110 detects its location (step S402), and receives the start point and the end position by the input unit 130 (step S404), and the processing unit 150 plans the navigation path according to the position of the start point and the end point received by the input unit 130 ( Step S406).

Then, when the navigation device 100 is to display the navigation path, the processing unit 150 accesses the electronic map database stored in the storage unit 140, and displays the navigation on the display unit 120 according to the data in the electronic map database. Map, and only map information associated with the navigation path in the map database is displayed in this navigation map. It should be noted that, in this embodiment, the processing unit 150 accesses the map information around the front end portion of the navigation path according to the display ratio preset by the navigation device 100, so as to map the navigation map (step S408). The map information includes the basic road map and the navigation path.

In addition, the processing unit 150 will mark the current road in the navigation path with the location of the navigation device 100 and the road name associated with the next road (step S410), and here the current road turns to the turning point of the next road, the processing unit 150 A reference target (step S412) is also indicated to assist the user in identifying the location of the turn, such as a point of interest, a landmark, a store, or a building located at a turning point, which is not limited herein.

It should be noted that, for the above-mentioned turning point, the processing unit 150 can also indicate the distance between its current position and the turning point position (step S414), and mark the previous one of the navigation path intersecting the current road before the turning point. The road name of the road (step S416), and further assists the user to prepare or pay attention to the position of the turn in time.

Furthermore, the processing unit 150 also includes a representative icon for displaying the navigation device 100 at the location where the navigation device 100 is located in the navigation path (step S418) to inform the user of the relative position of the location on the navigation path. Wherein, the representative icon can also display the forward speed and the forward direction of the navigation device 100, or the current speed limit of the road, thereby reminding the user to pay attention.

It should be noted that, in addition to the related information of the above turning points, the navigation device 100 can further display the road condition information. In detail, the navigation device 100, for example, uses a communication unit (not shown) to receive information of a congested road segment appearing in the navigation path, and marks the congested road segment on the navigation path with a preset road color or road pattern. For the user to grasp the actual road conditions.

For example, FIG. 5 is an example of a navigation map depicted in accordance with an embodiment of the invention. Referring to FIG. 5, the navigation map 500 includes a road map 510, a navigation path 520, and a road name indicating the current road (Mason Street) and the next road (Grove Road). In addition, the navigation map 500 also includes a reference target 530 (eg, a store owner's logo for a convenience store) at a turning point where the current road turns to the next road. For this turning point, the navigation map 500 also indicates the distance between the current location where the navigation device is located and the turning point (for example, 500 m), and the name of the road that was encountered before the turning point (for example, Oak Tree Hill Road). ). Moreover, the navigation map 500 further includes a representative icon 540 for displaying the navigation device, and the representative display 540 also displays the forward direction of the navigation device to remind the user of the attention. Finally, the navigation map 500 also includes displaying the congested road segment 550 in the navigation path and representing it in a preset road pattern to provide actual road condition information.

With the navigation path display method described above, the navigation device can further provide necessary turning information to help the user pay attention to the position and timing of the turn, and reduce the probability that the user misses the turn.

It is worth noting that in the case where the starting point and the ending point of the navigation path are far apart, the navigation device must limit the display ratio of the map, and only display the map information around the current location. At this time, in order to enable the user to know the relative relationship between the current location and the end point, and to determine the time required to reach the end point, the present invention also includes providing a thumbnail of the navigation path to the user for reference, and the following is another The embodiment is described in detail.

FIG. 6 is a flowchart of a navigation path display method according to an embodiment of the invention. Referring to FIG. 6 , the method of the present embodiment is applied to the navigation device 100 of FIG. 1 . Hereinafter, the detailed steps of the navigation path display method of the present invention are described in conjunction with the components in the navigation device 100. First, the navigation device 100 is positioned. The unit 110 detects the location of the navigation device 100 (step S602), and receives the start point and the end position by the input unit 130 (step S604), and the processing unit 150 plans the navigation according to the position of the start point and the end point received by the input unit 130. Path (step S606).

Then, when the navigation device 100 is to display the navigation path, the processing unit 150 accesses the electronic map database stored in the storage unit 140, and displays on the display unit 120 according to the data in the electronic map database. The navigation map, in which only the map information associated with the navigation path in the electronic map database is displayed, and the road names associated with the current road and the next road in the navigation path with the location of the navigation device 100 are indicated (step S608).

Different from the foregoing embodiment, in the embodiment, the processing unit 150 further includes a thumbnail of the navigation path additionally displayed on the display unit 120 (step S610). The thumbnail image includes, for example, a start point, an end point, a path of the navigation path, and a mark indicating the location of the navigation device 100.

It should be noted that, while displaying the navigation path and its thumbnail, the navigation device 100 further receives the user's operation action on the thumbnail by using the input unit 130 (step S660), and starts the path simulation mode to navigate. A representative illustration of the mobile navigation device 100 on the path to simulate a navigation path (step S670).

With the above navigation path display method, the navigation device can further provide the user to know or query the relative relationship between the location and the end of the navigation path at any time before or during the driving, and adjust the driving speed in time to make a reservation. Arrive at the destination within the time.

For example, FIG. 7 is an example of a navigation map according to an embodiment of the invention. Referring to FIG. 7, the navigation map 700 includes a road map 710, a navigation path 720, and a road name of the current road (eg, Mason Street) and the next road (eg, Grove Road). In addition, the navigation map 700 further includes a thumbnail 730 showing the navigation path 720 in the lower right corner, and the thumbnail 730 also marks the start and end points of the navigation path 720 in addition to the navigation line 720 in a simple line. And the location of the navigation device on the navigation path 720 to provide a user reference. In addition, the thumbnail 730 itself can also be a touchable screen button, and the user only needs to touch the thumbnail 730, the navigation device will activate the path simulation mode, and move the navigation device representation icon 740 on the navigation path 720. To simulate the navigation path 720.

The present invention further provides a computer program product for performing the steps of the above navigation path display 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 are loaded, and the code segments are loaded into the mobile device and executed, the steps of the navigation path display method and the functions of the navigation device can be completed.

In summary, the navigation path display method, the navigation device, and the computer program product of the present invention are used to display the navigation path, and only the necessary map information associated with the navigation path is taken by the electronic map data inventory, thereby simplifying the navigation map and allowing Users can more easily find their location in the navigation map, and pay attention to the next turn information, and go to the destination correctly.

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‧‧‧ navigation device

110‧‧‧ Positioning unit

120‧‧‧Display unit

130‧‧‧Input unit

140‧‧‧ storage unit

150‧‧‧Processing unit

300, 500, 700‧‧‧ navigation map

310, 510, 710‧‧‧ road route map

320, 520, 720‧‧‧ navigation path

530‧‧‧Reference target

540, 740‧‧‧ representative icon

730‧‧‧ thumbnail

S202~S208‧‧‧ steps of the navigation path display method according to an embodiment of the present invention

S402~S418‧‧‧ steps of the navigation path display method according to an embodiment of the present invention

S602~S614‧‧‧ steps of the navigation path display 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.

FIG. 2 is a flowchart of a navigation path display method according to an embodiment of the invention.

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

FIG. 4 is a flowchart of a navigation path display method according to an embodiment of the invention.

FIG. 5 is an illustration of a navigation map according to an embodiment of the invention.

FIG. 6 is a flowchart of a navigation path display method according to an embodiment of the invention.

FIG. 7 is an illustration of a navigation map according to an embodiment of the invention.

S202~S208. . . Each step of the navigation path display method according to an embodiment of the present invention

Claims (26)

A navigation path display method is applicable to a mobile device including a screen, the method comprising the steps of: detecting a location of the mobile device; receiving a point and an end position; and planning a navigation path according to the start and end positions; Taking an electronic map database, and displaying a navigation map on the screen according to the electronic map database, wherein the navigation map only displays one of the map information associated with the navigation path in the electronic map database, including only indicating a name of the road in the navigation path associated with one of the current location of the mobile device and the next road, wherein when the current road is to be connected to the next road in a turning manner, the current road is turned to the navigation map A reference target is displayed on a turning point of the next road, and a second road name of the previous road intersecting the current road before the turning point in the navigation path is marked in the navigation map; receiving the navigation path Information about a congested section; and indicating the congested section on the displayed navigation path. The method of claim 1, wherein the step of displaying the navigation map on the screen further comprises: displaying a representative icon of the mobile device at a location of the mobile device. The method of claim 2, wherein the representative representation comprises displaying a forward speed and a forward direction of the mobile device. The method of claim 2, wherein the representative figure The display includes a speed limit for the current road showing the location of the mobile device. The method of claim 1, wherein the step of displaying the navigation map on the screen further comprises: displaying a thumbnail of the navigation path on the screen, the thumbnail including a starting point of the navigation path, and a The end point, a path, and a marker indicating the location of the mobile device. The method of claim 5, wherein after displaying the thumbnail of the navigation path on the screen, the method further comprises: receiving an operation of the user for the thumbnail; and initiating a path simulation A mode on which the representative icon of the mobile device is moved to simulate the navigation path. The method of claim 1, wherein the step of displaying the navigation map on the screen further comprises: marking a distance between the current location and the next inflection point location in the navigation path. The method of claim 1, wherein the reference target comprises a point of interest, a landmark, a store or a building at the turning point. The method of claim 1, wherein the step of indicating the congested road segment on the displayed navigation path comprises: indicating the congested road segment by using a preset road color or a road pattern. The method of claim 1, wherein accessing the method The electronic map database, and displaying the navigation map on the screen according to the electronic map database comprises: accessing the map information around a front end portion of the navigation path according to a preset display ratio in the mobile device According to the map, the navigation map is drawn on the screen. The method of claim 1, wherein the step of mapping the navigation map to the screen comprises displaying the navigation map in the form of a two-dimensional plan or a three-dimensional bird view. The method of claim 11, wherein the display ratio of the three-dimensional bird's-eye view is greater than the display ratio of the two-dimensional plan. A computer program product loaded into the program via a mobile device to perform the steps of: detecting a location of the mobile device; receiving a point and an end position; planning a navigation path according to the start and end positions; accessing an electronic map a database, and displaying a navigation map on the screen according to the electronic map database, wherein the navigation map only displays one of the map information associated with the navigation path in the electronic map database, which includes only indicating the navigation path a road name associated with one of the current location of the mobile device and the next road, wherein when the current road is to be connected to the next road in a turn, the current road is turned to the next road in the navigation map a reference target is drawn on a turning point, and the current road is marked before the turning point in the navigation path in the navigation map And intersecting a second road name of the previous road; receiving information of a congestion road segment in the navigation path; and indicating the congestion road segment on the displayed navigation path. A navigation device includes: a positioning unit for detecting a location of the navigation device; a display unit; an input unit for receiving a point and an end position; a storage unit for storing an electronic map database; and a processing unit coupled The positioning unit, the input unit, the display unit and the storage unit, according to the starting point and the ending position received by the input unit, plan a navigation path, access the electronic map database in the storage unit, and according to the The electronic map database shows a navigation map on the display unit, wherein the navigation map only displays one of the map information associated with the navigation path in the electronic map database, which includes only indicating the navigation path and the mobile device One of the current roads and the name of the road associated with the next road, wherein when the current road has to be connected to the next road in a turning manner, the current road is turned to a turning point of the next road in the navigation map a reference target, and indicating the turning point in the navigation path before the current a second road name of one of the preceding roads; and a communication unit receiving information of a congested road segment in the navigation path, and the processing unit indicates the navigation path displayed by the congested road segment on the display unit on. The navigation device of claim 14, wherein the navigation device The processing unit further includes a representative icon showing the navigation device at the location of the navigation device. The navigation device of claim 15, wherein the representative icon comprises displaying a forward speed and a forward direction of the navigation device. The navigation device of claim 15, wherein the representative representation includes a speed limit of the current road showing the location of the navigation device. The navigation device of claim 15, wherein the processing unit further comprises displaying a thumbnail of the navigation path to the display unit, the thumbnail comprising a starting point, an end point, a path, and an indication of the navigation path. A mark of the location of the navigation device. The navigation device of claim 18, wherein the input unit further comprises receiving an operation action of the user for the thumbnail, and the processing unit starts a path simulation mode, and moving the path on the navigation path This representative representation of the navigation device simulates the navigation path. The navigation device of claim 18, wherein the processing unit further comprises a distance between the current position in the navigation path and the position of the next inflection point. The navigation device of claim 14, wherein the reference target comprises a point of interest, a landmark, a store or a building at the turning point. The navigation device of claim 14, wherein the processing unit comprises: using a preset road color or a road style to indicate the Congested sections. The navigation device of claim 14, wherein the processing unit comprises: accessing the map information around a front end portion of the navigation path according to a preset display ratio in the navigation device, Navigate the map to the display unit. The navigation device of claim 14, wherein the processing unit comprises displaying the navigation map in the form of a two-dimensional plan or a three-dimensional bird view. The navigation device of claim 24, wherein the display ratio of the three-dimensional bird's-eye view is greater than the display ratio of the two-dimensional plan. A navigation system includes: a positioning tool for detecting a location of the navigation system; an input tool for receiving a point and an end position; a display tool; and a storage tool for storing an electronic map database; a path planning tool for planning a navigation path according to the start point and the end position received by the input tool; and a map tool for accessing the electronic map database in the storage tool, and according to the electronic map The database maps a navigation map to the display tool, wherein the navigation map only displays one of the map information associated with the navigation path in the electronic map database, and includes only indicating the location of the navigation system and the location of the navigation system. a current road and a road name associated with the next road, wherein when the current road has to be connected to the next road in a turning manner, the current road is turned to one of the next roads in the navigation map a reference target is displayed on the turning point, and a second road name of the previous road intersecting the current road before the turning point in the navigation path is marked in the navigation map, and a congested road segment in the navigation path is received Information and marking the congested road segment on the displayed navigation path.