TWI474942B - Navigation method capable of marking a front car - Google Patents

Description

Can indicate the navigation method of the previous car

The invention relates to a navigation method, in particular to a navigation method capable of indicating a distance of a preceding vehicle and generating a warning.

With the advancement of technology, various devices for driving safety have been gradually developed to improve the safety of vehicles while driving. For example, a reversing radar can be used to detect obstacles behind the vehicle to avoid collisions with pedestrians or other objects when reversing; the driving recorder can be used with infrared night vision to assist the driver on darker roads. Look at the road ahead; the lane offset warning device can be used to detect the distance between the vehicle and the road marking to avoid the vehicle's driving path from shifting to the existing lane; and the front vehicle collision warning device can be used to detect between the vehicle and the preceding vehicle. The distance to avoid collision between the vehicle and the vehicle in front is too close.

However, when the driver is driving the vehicle, the driver usually looks at the road ahead and occasionally views the navigation map on the navigation device. The warning function of the conventional driving safety device is not integrated on the navigation device to remind the driver of the driving condition at any time. Therefore, sometimes the driver will ignore the warning generated by the driving safety device.

The present invention provides a navigation method capable of indicating a preceding vehicle, comprising: a navigation device displaying a navigation map; a distance sensor detecting a distance between a vehicle and a vehicle in front of one of the vehicles; and the navigation device A symbol representing the vehicle and a symbol representing the vehicle in front are displayed on the navigation map.

Compared with the prior art, the navigation method of the present invention can compare the distance information between the driving vehicle and the preceding vehicle and the distance between the driving vehicle and the ground marking according to the result detected by the distance sensor and the lane offset sensor. The information is displayed on the navigation map of the navigation device to facilitate the driver to learn other driving safety information when viewing the navigation map on the navigation device.

Please refer to FIG. 1, which is a schematic diagram of a system 100 for performing the navigation method of the present invention. As shown in FIG. 1, system 100 includes a distance sensor 110, a lane offset sensor 120, and a navigation device 130. The distance sensor 110 is used to detect the distance between the driving vehicle C1 and the front vehicle C2, and the lane offset sensor 120 is used to detect the distance between the driving vehicle C1 and the ground marking L, and the present invention The navigation device 130 can display a message on the navigation map of the navigation device 130 according to the sensing results of the distance sensor 110 and the lane offset sensor 120.

For example, please refer to Figure 2 and refer to Figure 1 together. Fig. 2 is a schematic diagram showing the symbol of the preceding vehicle on the navigation map M by the navigation device of Fig. 1. As shown in FIG. 2, after the distance sensor 110 detects the distance between the driving vehicle C1 and the preceding vehicle C2, the navigation device 130 can determine the distance detected by the distance sensor 110 and the scale of the navigation map M. The detected distance information D and the symbol C1' representing the driving vehicle and the symbol C2' of the preceding vehicle are displayed on the navigation map M, so that when the driver views the navigation map M on the navigation device 130, the driver can In addition to knowing the navigation route, the driver can also know the distance information D between the driving vehicle and the preceding vehicle via the indication on the navigation map M.

In addition, the navigation device 130 can also determine whether the distance between the driving vehicle C1 and the preceding vehicle C2 is less than a predetermined value through the distance sensor. If the distance between the driving vehicle C1 and the preceding vehicle C2 is less than a predetermined value, the navigation device 130 may generate a warning to remind the driver driving the vehicle C1 to maintain a safe distance. The method by which the navigation device 130 generates an alert may be to issue a warning sound or display a warning pattern W on the navigation map M.

On the other hand, the navigation device 130 can obtain the license plate number of the preceding vehicle C2 via image recognition, and cross-link the license plate number of the vehicle in front of the vehicle management system to obtain the contact mode of the vehicle C2 in front, or through image analysis or The sensor obtains the distance between the driving vehicle and the vehicle in front, and then the navigation device 130 estimates the latitude and longitude corresponding to the vehicle in front, and searches for the relevant contact mode of the vehicle whose current position meets the latitude and longitude through the vehicle management system is the correlation of the preceding vehicle. In the contact mode, when the distance between the driving vehicle C1 and the preceding vehicle C2 is less than a predetermined value, a wireless warning signal is transmitted through the associated contact mode of the preceding vehicle to alert the driver of the preceding vehicle. For example, if the communication method of the front vehicle C2 (for example, the mobile phone number or the internet protocol address of a receiver) has been disclosed in the one-line vehicle management system, the distance between the driving vehicle C1 and the preceding vehicle C2 is less than When the predetermined value is reached, the navigation device 130 is triggered to automatically transmit the wireless communication system (for example, a wireless communication system connection or a wireless network) to the driving management system to obtain the related communication manner of the preceding vehicle C2, and automatically transmit a wireless warning via the related communication manner. A signal (for example, a text message, a voice, or a software-readable warning command) to a receiving device corresponding to the associated contact method to notify the other party of the attention.

Please refer to Figure 3 and refer to Figure 1 together. FIG. 3 is a schematic diagram of the navigation device 130 of FIG. 1 generating a lane offset warning on the navigation map M. As shown in FIG. 3, after the lane offset sensor 120 detects the distance between the driving vehicle C1 and the ground marking L, the navigation device 130 can determine the distance detected by the lane offset sensor 120. If the distance between the driving vehicle C1 and the ground marking L is less than a predetermined value, if the distance between the driving vehicle C1 and the ground marking L is less than a predetermined value, the navigation device 130 may generate an alert to remind the driver to drive. The path is kept in the middle of the ground markings on both sides. The method by which the navigation device 130 generates an alert may display a warning pattern on the navigation map M or issue a warning light. For example, when the driving vehicle C1 is too close to the ground marking L on the left side, the navigation device 130 may mark a red line on the left side of the road R on the navigation map M to alert the driver, or the navigation device 130 may emit the light source 132 on the left side thereof. The red light is used to alert the driver; and when the driving vehicle C1 is too close to the ground marking L on the right side, the navigation device 130 may mark a red line on the right side of the road R on the navigation map M to alert the driver, or the navigation device 130 may make the right side thereof Light source 134 emits a red light to alert the driver. In addition, when the driving path of the driving vehicle C1 is maintained in the middle of the ground markings L on both sides, the navigation device 130 may mark the green line on the left and right sides of the road R on the navigation map M to inform the driver that the driving path is maintained on both sides. In the middle of the ground marking, or the navigation device 130, the light sources 132, 134 on the left and right sides emit green light to inform the driver that the driving path is maintained in the middle of the ground markings on both sides.

Please refer to FIG. 4, which is a flow chart 400 of the navigation method of the present invention. The flow of the navigation method of the preceding vehicle can be marked as follows: Step 410: A navigation device displays a navigation map; Step 420: A distance sensor detects a distance between a vehicle and a vehicle in front of one of the vehicles; Step 430: The navigation device displays the distance and the symbol representing the vehicle and the symbol representing the preceding vehicle on the navigation map. Step 440: Determine whether the distance is less than a predetermined value, and if yes, proceed to step 450, if no Go to step 420; and step 450: the navigation device generates a warning.

Please refer to FIG. 5. FIG. 5 is a flow chart 500 of a navigation method for generating a lane offset warning according to the present invention. The flow of the navigation method for generating a lane offset warning according to the present invention is as follows: Step 510: A navigation device displays a navigation map; Step 520: A lane offset sensor detects a vehicle and a ground marking Distance: Step 530: Determine whether the distance is less than a predetermined value, and if yes, go to step 540, if no, go to step 520; and step 540: the navigation device generates an alert.

Compared with the prior art, the navigation method of the present invention can compare the distance information between the driving vehicle and the preceding vehicle and the distance between the driving vehicle and the ground marking according to the result detected by the distance sensor and the lane offset sensor. The information is displayed on the navigation map of the navigation device to facilitate the driver to learn other driving safety information when viewing the navigation map on the navigation device.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100. . . system

110. . . Distance sensor

120. . . Lane offset sensor

130. . . Navigation device

132,134. . . light source

C1. . . Driving a vehicle

C2‧‧‧ ahead vehicle

D‧‧‧ distance information

L‧‧‧ground marking

R‧‧‧ Road

Map of M‧‧‧

W‧‧‧Warning pattern

400,500‧‧‧flow chart

410 to 450, 510 to 540 ‧ ‧ steps

Figure 1 is a schematic illustration of a system for performing the navigation method of the present invention.

Fig. 2 is a schematic diagram showing the symbol of the preceding vehicle on the navigation map in the navigation device of Fig. 1.

Figure 3 is a schematic diagram of the navigation device of Figure 1 generating a lane offset warning on the navigation map.

Figure 4 is a flow chart showing the navigation method of the preceding vehicle in the present invention.

FIG. 5 is a flow chart of a navigation method capable of generating lane offset warning according to the present invention.

400. . . flow chart

410 to 450. . . step

Claims (9)

A navigation method capable of indicating a preceding vehicle, comprising: a navigation device displaying a navigation map; a distance sensor detecting a distance between a vehicle and a vehicle in front of one of the vehicles; and the navigation device representing the distance and representing the distance The symbol of the vehicle and the symbol representing the vehicle in front are simultaneously displayed on the navigation map; determining whether the distance is less than a predetermined value; and if the distance is less than the predetermined value, triggering the navigation device to obtain the front via the vehicle management system The relevant contact mode of the vehicle, and automatically transmits a wireless warning signal to the receiving device corresponding to the related contact mode via the related contact mode. The method of claim 1, further comprising: if the distance is less than the predetermined value, the navigation device generates an alert. The method of claim 2, wherein the navigation device generates the alert system to display a warning pattern on the navigation map for the navigation device. The method of claim 2, wherein the navigation device generates the alert system to sound a warning sound for the navigation device. The method of claim 1, wherein the navigation device represents the distance and represents the vehicle The symbol and the symbol representing the vehicle in front are simultaneously displayed on the navigation map, and the navigation device displays the distance and the symbol representing the vehicle and the symbol representing the preceding vehicle on the navigation map according to the scale of the navigation map. . The method of claim 1, further comprising: detecting a distance between the ground marking and the vehicle; determining whether the distance between the ground marking and the vehicle is less than a predetermined value; and when the ground marking The navigation device generates an alert when the distance between the vehicle and the vehicle is less than a predetermined value. The method of claim 6, wherein the navigation device generates the alert system to display a warning pattern on the navigation map for the navigation device. The method of claim 7, wherein the warning pattern is indicated on one of the navigation maps corresponding to one side of the ground marking. The method of claim 6, wherein the left and right sides of the navigation device are respectively provided with a light source, and the navigation device generates the warning system for the navigation device to emit a warning light on a light source corresponding to one side of the ground marking.