TW201403027A - Vehicle navigating apparatus, handheld navigating device and method for transmitting selected-range navigating information - Google Patents

Abstract

A method is provided for transmitting selected-range navigating information from a vehicle navigating apparatus to a handheld navigating device. The handheld navigating device is connected to the vehicle navigating apparatus to establish signal communications. A distance selection signal is transmitted from the handheld navigating device to the vehicle navigating apparatus. By using a current coordinate of the vehicle navigating apparatus as a center, the vehicle navigating apparatus determines the selected-range navigating information according to a selected distance corresponding to the distance selection signal. Afterwards, the selected-range navigating information is encrypted and compressed, and then transmitted to the handheld navigating device and displayed on a display unit of the handheld navigating device.

Description

Car navigation device, handheld navigation device and transmission method of selected range navigation data

The invention relates to a navigation data transmission technology, in particular to a technology for sharing and transmitting a selected range of navigation data between a car navigation device and a handheld navigation device.

With the popularization of the related technologies of the Global Positioning System, different types of navigation systems have been installed on civilian vehicles and personal handheld devices.

However, due to the different manufacturers and industries, and the differences in the application of driving navigation and pedestrian navigation, the navigation system built in the car and the navigation system on the smart handheld device are not only different in function, but also have map data of different specifications. , surrounding attractions and store information, and so on. If a consumer driving a car has to have both the car and the handheld navigation map, it must be purchased and installed separately. In addition to the cost, for a small range of navigation needs within a few kilometers, the two maps will be duplicated and interchangeable, and it may not be necessary to purchase both.

In view of this, in one or more embodiments of the present invention, a selected range navigation data transmission method is provided, which includes the following steps. First, a handheld navigation device and a car navigation device are connected via the signal communication; secondly, a selected distance signal is transmitted by the handheld navigation device to the car navigation device, wherein the selected distance signal corresponds to a selected distance; and further, the vehicle is The navigation device is centered on the current coordinate of the car navigation device, and determines a selected range navigation data according to the selected distance corresponding to the selected distance signal; and then, the navigation device selects the selected range navigation data into the navigation device. The line is compressed and transmitted to the handheld navigation device. Finally, the selected range navigation data transmitted by the car navigation device is displayed on a display unit of the handheld navigation device.

In one or more embodiments of the present invention, a handheld navigation device includes a control unit, and a GPS unit, a display unit, an input unit, an interface unit, and a map respectively electrically connected to the control unit. Data unit. The control unit is connected to the car navigation device through the interface unit to transmit a selected distance signal to the car navigation device, and the selected distance signal corresponds to a selected distance. Receiving, by the interface unit, a selected range navigation data from the car navigation device, and displaying the selected range navigation data on the display unit, wherein the selected range navigation data is centered on the current coordinate of the car navigation device And determined according to the selected distance corresponding to the selected distance signal.

In one or more embodiments of the present invention, an in-vehicle navigation device is provided, which is built in a vehicle, and includes a processing module, and a GPS module and a map information module electrically connected to the processing module. Group and an interface module. The interface module is coupled to a handheld navigation device for receiving a selected distance signal from the handheld navigation device, the selected distance signal corresponding to a selected distance. The processing module is centered on one of the current coordinates captured by the GPS module, and determines a selected range of navigation data according to the selected distance corresponding to the selected distance signal, and captures the navigation information in the map information module. The selected range navigation data is compressed and encrypted, and transmitted to the handheld navigation device through the interface module.

The navigation data transmission method disclosed by the invention can transmit the selected range navigation data centered on the vehicle navigation device and within a selected distance to the connected vehicle. Handheld navigation device for navigation devices. In this way, the handheld navigation device can use the selected range navigation data to perform a pedestrian navigation or a short-distance navigation program, expand the application field of the vehicle navigation device, and reduce the user's purchase of the vehicle navigation device and the handheld navigation device 200. cost.

Please refer to FIG. 1 , which is a block diagram of a system of a handheld navigation device and a navigation device for a vehicle according to an embodiment of the invention.

The car navigation device 100 is built in a vehicle 10 and includes a processing module 110, a GPS module 120, a map information module 130, an interface module 140, a display module 150, and a power interface 160. The GPS module 120, the map information module 130, the interface module 140, the display module 150, and the power interface 160 are electrically connected to the processing module 110, respectively. The processing module 110 can be implemented by a central processing unit (CPU) or processor, typically in the form of an integrated circuit or wafer, providing computing power and executing various programs built into the in-vehicle navigation device 100. The GPS module 120 is coupled to a vehicle satellite antenna (not shown) for receiving satellite positioning signals and converting to the current coordinate (x, y) data of the vehicle 10. The map information module 130 stores geographical information and pictures related to maps, geographical information and pictures of scenic spot facilities, and even route planning programs to be installed. The interface module 140 is configured to connect to the handheld navigation device 200, which is a hardware interface, and can be implemented by wired or wireless communication technologies, for example, compatible with USB, Bluetooth, or Wifi Direct. The display module 150 displays text and/or images according to the processing module 110 command, and is usually fixedly disposed on an inner panel (not shown) on the front side of the interior of the vehicle 10, and can be implemented by a flat panel display such as a liquid crystal display. The power interface 160 is connected to the vehicle power supply (not shown) of the vehicle 10 to provide power to the car navigation device 100; In addition to the processing module 110, the power interface 160 is also electrically coupled to other components to provide power.

When the car navigation device 100 is in operation, the processing module 110 will execute a specific navigation program, and the map information module 130 will cooperate with the instruction of the processing module 110 to match the current coordinate (x, y) data of the vehicle 10 provided by the GPS module 120. A navigation screen such as a navigation map and a navigation indicator is displayed on the display module 150, and the navigation screen is changed as the user operates or the movement of the vehicle 10.

The handheld navigation device 200 can be, for example, a personal navigating device, a smart phone, a tablet or a personal digital assistant (PDA), and includes a control unit 210, and a GPS unit 220 and a display unit electrically connected to the control unit 210, respectively. 230, input unit 240, map data unit 250, interface unit 260, and battery 270. Control unit 210 may be implemented by a central processing unit (CPU) or processor, typically in the form of an integrated circuit or wafer, providing computing power and executing various programs built into handheld navigation device 200. The GPS unit 220 is coupled to a satellite antenna (not shown) for receiving satellite positioning signals and converting to the current coordinate (x, y) data of the handheld navigation device 200. The display unit 230 instructs display of text and/or images according to the control unit 210, and can be implemented by a flat panel display such as a liquid crystal display or an organic electroluminescence display. The input unit 240 can be, for example, a touch panel, a physical case or a voice control, a somatosensory control component, and generates an input signal according to a user's operation to control the handheld navigation device 100. The map data unit 250 includes a map database 251 and a command sub-unit 252. The map database 251 stores geographical information and pictures related to the map, geographic information and pictures of the landmarks and landmark facilities, and even a route planning program to be installed, and the command subunit. 252, according to the instruction of the control unit 210, accessing the map database 251 and performing Various navigation operations. The interface unit 260 is used to connect the car navigation device 100, which is a hardware interface, and can be implemented by wired or wireless communication technologies, for example, compatible with USB, Bluetooth, or Wifi Direct. The battery 270 can be implemented by a conventional lithium battery to provide power to the handheld navigation device 200; in addition to the control unit 210, the battery 270 is also coupled to other components to provide power.

When the handheld navigation device 200 is in operation, the control unit 210 will execute a preset navigation program, and the map data unit 250 will cooperate with the current coordinate (x, y) data provided by the GPS unit 220 according to the instruction of the control unit 210. A navigation screen such as a navigation map and a navigation indicator is displayed on the display unit 230, and the navigation screen is changed as the user operates or moves the handheld navigation device 200.

For the operation mechanism of the selected range navigation data transmission method between the car navigation device 100 and the handheld navigation device 200, please refer to FIG. 2A and FIG. 2B.

FIG. 2A is a main flowchart of a method for transmitting a selected range navigation data according to another embodiment of the present invention.

Step S01: Connect the handheld navigation device and the car navigation device to establish signal communication. The in-vehicle navigation device 100 is connected to the interface unit 260 of the handheld navigation device 200 through the interface module 140. The interface module 140 and the interface unit 260 are compatible with each other, and the signal communication can be established after the connection (whether by the wired or wireless method). Signal communications).

Step S02: transmitting a selected distance signal to the car navigation device by the handheld navigation device. The selected distance signal corresponds to a selected distance D (see Figure 4A or 4B). Since the storage capacity of the handheld navigation device 200 is usually small and is not suitable for storing a large amount of graphics, it takes a long time to store a large amount of graphics, which is not suitable for immediate use in a short time, and is in step. The line navigation range is only within a few kilometers, so the amount of maps that need to be transmitted by the car navigation device 100 can be reduced by setting the selected distance D. After the interface module 140 establishes signal communication with the interface unit 260, the selected distance D is selected to be a distance signal type, and is transmitted by the handheld navigation device 200 to the car navigation device 100.

Step S03: The car navigation device is determined according to the current coordinate of the vehicle, and the selected range navigation data is determined according to the selected distance corresponding to the selected distance signal. The GPS module 120 of the car navigation device 100 can capture the "current coordinates" (x, y) of the vehicle 10, and center on the current coordinate (x, y), and according to the selected distance signal from the handheld navigation device 200. With the selected distance D, the in-vehicle navigation device 100 can determine a "selected range navigation data" 131, that is, a map within the distance range selected by the distance 10 of the vehicle 10 centering on the current coordinate (x, y) where the vehicle 10 is located. It includes various latitude and longitude data, maps composed of multiple layers, various special location information such as institutions/schools/station/gas station/hospital/attraction/restaurant/parking.

Step S04: The selected range navigation data is compressed and encrypted by the car navigation device and transmitted to the handheld navigation device. After the car navigation device 100 determines the selected range navigation data 131, it is compressed and encrypted for transmission to the handheld navigation device 200.

Step S05: Display the selected range navigation data transmitted by the car navigation device on the display unit of the handheld navigation device. The selected range navigation data 131 transmitted by the car navigation device 100 is compressed and encrypted, and the handheld navigation device 200 first performs a decompression and decryption process, that is, can store the selected range navigation data 131, and through the display unit 230 of the handheld navigation device 200, The selected range navigation data 131 is displayed thereon.

FIG. 2B is a diagram showing a method for transmitting a selected range navigation data in another embodiment of the present invention; Detailed flow chart. Please refer to Figure 1 and Figures 3A, 3B, 4A, and 4B together. 3A is a schematic diagram of an operation interface on a handheld navigation device according to another embodiment of the present invention; FIG. 3B is a schematic diagram of an operation interface of a handheld navigation device according to another embodiment of the present invention; FIG. 4A is a view showing a selected range of navigation in another embodiment of the present invention; A schematic diagram of the scope of the data; and FIG. 4B is a schematic diagram showing the range of the selected range navigation data in another embodiment of the present invention.

First, the shortcut of the corresponding application is found on the touchable display unit 230 of the handheld navigation device 200 (see FIG. 3A), and the shortcut image 231 can be selected by the touch point, and the navigation is started after the touch point is selected. The data request program (step S21). Then, a connection selection interface 232a can be displayed on the display unit 230 (step S22) (see FIG. 3B), and the connection selection interface 232a is displayed with the touch button displayed with the words "connection selection", which includes a pull-down menu 232b, and pull-down The Wifi Direct, Bluetooth, USB and other connection options are displayed on the menu 232b. The user can select an appropriate connection method according to the actual specifications of the interface module 260 of the car navigation device 100 and the interface module 260 of the handheld navigation device 200. If the USB connection is selected, the user needs to use the USB signal cable to connect the car navigation device 100 interface module 140 and the handheld navigation device 200 interface module 260. If the Wifi Direct or Bluetooth connection is selected, the car navigation device 100 and the handheld navigation device 200 respectively activate the corresponding Wifi Direct or Bluetooth module to perform the docking process. In this way, the interface module 140 of the car navigation device 100 and the interface module 260 of the handheld navigation device 200 can establish signal communication (steps S11, S23).

Next, a distance selection interface 233a is displayed on the display unit 230 (step S24). The distance selection interface 233a displays a touch button with the words "distance selection", which includes a pull-down menu 233b, and the pull-down menu 233b displays the distance options of 1 km, 2 km, and 3 km. Users can click any distance option such as "3 km" to generate A user signal, the control unit 210 of the handheld navigation device 200 selects a selected distance (for example, 3 kilometers) according to the user signal to generate a selected distance signal (step S25). The "confirmation setting" touch button 234 can generate a confirmation signal via touch, and the control unit 210 can confirm whether the user wants to perform the setting of the connection selection and the distance selection.

The selected signal will be transmitted from the handheld navigation device 200 to the in-vehicle navigation device 100 through the interface module 260 and the interface module 140 (steps S26, S12). The GPS module 120 of the car navigation device 100 can acquire the coordinate information from the satellite signal, that is, the current coordinate (x, y) of the car navigation device 100. After receiving the selected signal, the car navigation device 100 determines a selected range navigation data 131 centering on the current coordinate (x, y) and selecting the distance D corresponding to the selected position signal (step S13). The determination of the selected range navigation data means determining the coverage of the navigation data that the car navigation device 100 needs to share and transmit; regardless of the coverage of the selected range navigation data 131, the selected range navigation data 131 refers to the map stored in the car navigation device 100. The navigation data of the coverage area is selected in the data module 130. Referring to Figures 4A and 4B, with the same coordinates (x, y) of the same car navigation device 100 as the center, according to the same selected distance D, different ranges of selected range navigation data can be determined as needed. For example, in Figure 4A, the selected range navigation data covers the data range of 131, which is the circular area of the current coordinate (x, y) centered on the center (the center of the circle) and the radius of the selected distance D (diameter 2D). In Fig. 4B, the range of data covered by the selected range navigation data 131 is a square area having a side length of 2D centered on the current coordinate (x, y).

After the selected range navigation data 131 is determined, the processing module 110 of the car navigation device 100 will compress and encrypt the selected range navigation data 131 by the geographic information module 130, and transmit it to the handheld navigation device via the interface module 140 and the interface unit 260. 200 (step S14). The handheld navigation device 200 decrypts and decompresses the compressed encrypted selected range navigation data 131 and stores it in the map database 251 of the geographic information unit 250 (step S27). Finally, the control unit 210 of the handheld navigation device 200 can execute a walking or short-range navigation program to display the selected range navigation data 131 to the display unit 230 according to the GPS unit receiving the satellite coordinates of the location of the handheld navigation device 200.

Regarding the geographical range covered by the selected range navigation data 131, in addition to the above-mentioned selected distance D centered on the current coordinate (x, y) where the car navigation device 100 is located, the current location of the car navigation device 100 may be similarly The coordinates (x, y) are centered, but the one or more interest landmarks Pi (POI; Point of Interest) that the user wants to travel are used as peripheral target points to calculate a "covering distance" that can cover these interest landmarks Pi. d".

Please refer to FIG. 4C and FIG. 4D , which are respectively schematic diagrams of two ranges of selected range navigation data in another embodiment of the present invention. Referring to FIG. 1 , the display unit 230 of the handheld navigation device 200 can display one or more interest landmarks Pi for the user to select and transmit to the car navigation device through the interface unit 260 and the interface module 140. 100. The in-vehicle navigation device 100 receives the interest landmark Pi, that is, centering on the current coordinate (x, y) where the in-vehicle navigation device 100 is located, calculating a coverage distance d that can cover the interest landmark Pi, and determining the selected range by covering the distance d Navigation data 131.

In other words, the selected range navigation data 131 transmitted by the in-vehicle navigation device 100 includes the coverage distance d, which is centered on the current coordinate (x, y) where the in-vehicle navigation device 100 is located, and can cover the handheld navigation device 200. The interest landmark Pi transmitted. The operation rule of the car navigation device 100, for example, first calculates the current coordinate (x, y) To each individual distance, and the largest distance from the interest landmark Pi is the maximum distance of the coverage distance d, or the maximum distance of the individual interest of the interest landmark Pi plus a certain preset value (such as 0.5 or 1 km) as the coverage distance d.

In Figure 4C, the selected range navigation data covers the data range of 131, which is the circular area of the current coordinate (x, y) centered on the center (center) and the radius d (diameter 2d), covering one or more Interested landmarks Pi. In the 4D figure, the range of data covered by the selected range navigation data 131 is a square area having a side length of 2D centered on the current coordinate (x, y), and may also cover one or more interest landmarks Pi.

The navigation data transmission method disclosed in the present invention can transmit the selected range navigation data 131 in the range covered by the in-vehicle navigation device 100 to a selected distance D to the handheld navigation device 200 connected to the in-vehicle navigation device 100, so that the handheld navigation device 200 The selected range navigation data 131 can be used for the pedestrian navigation or short-distance navigation program to expand the application field of the vehicle navigation device 100, and also reduce the user's purchase of the vehicle navigation device 100 and the handheld navigation device 200.

However, the specific embodiments described above are merely illustrative of the features and functions of the present invention, and are not intended to limit the scope of the present invention, and thus, without departing from the spirit and scope of the present invention, Equivalent changes and modifications made by the disclosure of the present invention should still be covered by the scope of the following claims.

D‧‧‧Selected distance

D‧‧‧ Coverage distance

(x,y)‧‧‧ current coordinates

10‧‧‧ Vehicles

100‧‧‧Car navigation equipment

110‧‧‧Processing module

120‧‧‧GPS module

130‧‧‧Map Information Module

131‧‧‧Selected range navigation data

140‧‧‧ interface module

150‧‧‧ display module

160‧‧‧Power interface

200‧‧‧Handheld navigation device

210‧‧‧Control unit

220‧‧‧GPS unit

230‧‧‧ display unit

240‧‧‧ input unit

250‧‧‧Map data unit

251‧‧‧Map Database

252‧‧‧Command subunit

260‧‧‧Interface unit

270‧‧‧Battery

1 is a block diagram of a system of a handheld navigation device and a navigation device for a vehicle according to an embodiment of the present invention; 2A is a main flowchart of a method for transmitting a selected range navigation data according to another embodiment of the present invention; FIG. 2B is a detailed flowchart of a method for transmitting a selected range navigation data according to another embodiment of the present invention; FIG. 3A is another embodiment of the present invention. FIG. 3B is a schematic diagram of an operation interface of a handheld navigation device according to another embodiment of the present invention; FIG. 4A is a schematic diagram showing a range of navigation data of a selected range in another embodiment of the present invention; FIG. A schematic diagram of a range of selected range navigation data in another embodiment of the present invention; FIG. 4C is a schematic diagram showing a range of selected range navigation data in another embodiment of the present invention; and FIG. 4D is a range of selected range navigation data in another embodiment of the present invention. schematic diagram.

Claims (10)

A selected range navigation data transmission method includes: connecting a handheld navigation device and a car navigation device to establish a signal communication; transmitting, by the handheld navigation device, a selected distance signal to the car navigation device, wherein the selected distance signal corresponds to a selected distance Determining a selected range of navigation data based on the current coordinate of one of the in-vehicle navigation devices, and determining, according to the selected distance corresponding to the selected distance signal, the selected range navigation data is compressed and encrypted, and transmitted by the in-vehicle navigation device And to the handheld navigation device; and displaying the selected range navigation data transmitted by the car navigation device on a display unit of the handheld navigation device. The method for transmitting a selected range navigation data according to claim 1, further comprising displaying a distance selection interface on a display unit of the handheld navigation device for a user to operate and generating the selected distance signal. The selected range navigation data transmission method of claim 1, further comprising transmitting at least one interest landmark to the car navigation device through the handheld navigation device, the car navigation device receiving the interest landmark and using the vehicle The current coordinate of the navigation device is centered, and the calculation may cover a coverage distance of the interest landmark, and then the selected range navigation data is determined by the coverage distance. A handheld navigation device includes a control unit, and a GPS unit, a display unit, an input unit, an interface unit and a map data unit respectively electrically connected to the control unit; The interface unit is connected to a car navigation device to transmit a selected distance signal to the car navigation device, and the selected distance signal corresponds to a selected distance; wherein the interface unit can receive a selected range of navigation from the car navigation device. And displaying the selected range navigation data on the display unit, wherein the selected range navigation data is centered on the current coordinate of the car navigation device, and is determined according to the selected distance corresponding to the selected distance signal. The handheld navigation device of claim 4, wherein the control unit displays the selected range navigation data transmitted by the car navigation device on the display unit through the map data unit and the GPS unit. The handheld navigation device of claim 4, wherein the display unit displays a distance selection interface for a user to operate the distance selection interface through the input unit and generate the selected distance signal. The handheld navigation device of claim 4, wherein at least one interest landmark is transmitted to the in-vehicle navigation device through the interface unit of the handheld navigation device, and the selected range navigation data transmitted by the in-vehicle navigation device includes a coverage The distance is centered on the current coordinate at which the in-vehicle navigation device is located and may cover the landmark of interest. The handheld navigation device of claim 4, wherein the interface module is compatible with USB, Bluetooth or Wifi Direct. An in-vehicle navigation device is built in a vehicle, and includes a processing module, and a GPS module, a map information module and an interface module electrically connected to the processing module; The interface module is connected to a handheld navigation device for receiving a selected distance signal from the handheld navigation device, wherein the selected distance signal corresponds to a selected distance; wherein the processing module is captured by the GPS module. The current coordinate is centered, and according to the selected distance corresponding to the selected distance signal, a selected range navigation data is determined, and the selected range navigation data is captured in the map information module for compression and encryption, and transmitted to the interface module through the interface module. The handheld navigation device. The car navigation device of claim 9, wherein the interface module is compatible with USB, Bluetooth or Wifi Direct.