TWI777226B - vehicle warning system - Google Patents

Abstract

A warning system for a vehicle includes a portable device, a short-range communication module, and an instrument. The portable device includes: a storage unit for storing road map data; a satellite positioning unit for generating real-time positioning coordinates; a short-range communication unit; and a processing unit for determining whether to generate a warning message according to the road map data and the real-time positioning coordinates , if yes, the processing unit wirelessly transmits the warning message to the outside through the short-range communication unit. The short-range communication module is disposed on the vehicle, and is wirelessly connected with the short-range communication unit of the portable device to receive the warning message. The instrument includes a display module and a processing module, and the processing module displays the warning message on the display module.

Description

vehicle warning system

The present invention relates to a warning system, in particular to a warning system for a vehicle.

At present, in order to reduce the manufacturing cost, the locomotive manufacturers are not equipped with a Global Positioning System (GPS) when the locomotives leave the factory. Only high-priced models will be equipped with GPS. Therefore, in order to navigate through GPS, motorcycle riders of general models need to purchase GPS separately or use a smart phone with navigation function and a fixing bracket to install it on the handle of the motorcycle.

As for cars, some cars come with GPS as standard equipment. However, if the car does not have a built-in GPS as a standard equipment, but there is still a need for navigation, the car driver can also purchase a GPS or use a mobile phone and a fixed frame with navigation functions to install a navigation device in the car for navigation.

For the various navigation methods of the above-mentioned vehicles, wheelless navigation is performed through separately purchased GPS, mobile phone GPS, or through the built-in GPS. Usually, the navigation map screen can provide warning functions such as speeding warning and speeding camera. However, by The navigation information displayed on the operation interface and display screen of the above-mentioned GPS navigator is usually very complicated, so even if there are warning messages such as speeding warning and speeding camera displayed on the navigation map screen, the warning message will be displayed on the navigation map. On the same screen, it is difficult for the user to identify the warning message, and thus the warning function of the warning message is ineffective. Therefore, it is necessary to find a solution.

Therefore, the purpose of the present invention is to provide a warning system for a vehicle.

Therefore, the vehicle warning system in the technology of claim 1 of the present invention is suitable for a vehicle, and includes: a portable device, a short-range communication module, a meter, and a vehicle speed sensor. The portable device includes: a storage unit storing a road map data, the road map data includes a road speed limit value database, the road speed limit value database records the road speed limit value of each road section, wherein the The road map data also includes a speed camera position database, which records several speed camera position coordinates; a satellite positioning unit generates a real-time positioning coordinate according to a satellite positioning signal sent by a satellite positioning system; a A short-range communication unit; and a processing unit, electrically connected to the storage unit, the satellite positioning unit, and the short-range communication unit, and according to the road map and the real-time positioning coordinates, to determine whether a warning message needs to be generated, if so, then there The management unit wirelessly transmits the warning message to the outside through the short-range communication unit. The short-range communication module is disposed on the vehicle, and can be wirelessly connected with the short-range communication unit of the portable device to receive the warning message. The instrument is disposed on the vehicle, and includes a display module and a processing module electrically connected to the display module and the short-range communication module, wherein the processing module receives the short-range communication module. warning message, and displaying the warning message on the display module. The vehicle speed sensor is arranged on the vehicle and is electrically connected to the processing module of the instrument. The processing module of the instrument wirelessly transmits a vehicle speed from the vehicle speed sensor to the portable device through the short-range communication module, and then the processing unit of the portable device determines whether the vehicle speed is greater than the vehicle speed. Real-time positioning of the road speed limit value of the road section to which the coordinates belong, and if so, the processing unit of the portable device generates the warning message including the road speed limit value and transmits it to the short-range distance of the vehicle through the short-range communication unit The communication module, and then the short-range communication module transmits the warning message to the processing module of the instrument, and the processing module displays the road speed limit value of the warning message on the display module. The processing unit of the portable device determines whether the distance between the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is less than a predetermined distance, and if so, the processing unit of the portable device generates a The warning message including a speeding camera warning graphic is transmitted to the short-range communication module of the vehicle through the short-range communication unit, and then the short-range communication module transmits the warning message to the processing module of the instrument, the The processing module then displays the speeding camera warning graphic of the warning message on the display module. The portable On the other hand, the processing unit automatically switches the different preset distances according to the vehicle speed. When the vehicle speed is less than or equal to 50km/h, the preset distance is 300m, and when the vehicle speed is greater than or equal to 51km/h and less than or equal to At 70km/h, the preset distance is 500m, and when the vehicle speed is greater than or equal to 71km/h, the preset distance is 700m.

In the vehicle warning system in the technology of claim 2 of the present invention, the short-range communication unit of the portable device is a Bluetooth unit, and the short-range communication module of the vehicle is a Bluetooth module.

In the vehicle warning system according to the technology of claim 3 of the present invention, the storage unit of the portable device stores an application program including the road map data, and the application program can be used without the user's operation. Automatically executed in the background, when the power of the meter is turned on, the NFC module of the vehicle is immediately connected with the NFC unit of the portable device via Bluetooth, so that the processing unit of the portable device can According to the road map data and the real-time positioning coordinates of the application, it is determined whether the warning message needs to be generated.

In the vehicle warning system in the technology of claim 4 of the present invention, the vehicle speed sensor is a wheel speed sensor.

In the vehicle warning system according to the technology of claim 5 of the present invention, the portable device is a smart phone, a tablet computer, or a wearable device.

The warning system for a vehicle in the technology of claim 6 of the present invention is suitable for a vehicle, and includes: a portable device, a cloud server, a short-range communication module, A meter, and a speed sensor. The portable device includes: a satellite positioning unit, which generates a real-time positioning coordinate according to a satellite positioning signal sent by a satellite positioning system; a short-range communication unit; a network communication unit; and a processing unit, which is electrically connected to the The satellite positioning unit, the short-range communication unit, and the network communication unit will transmit the real-time positioning coordinates to the outside through the network communication unit. The cloud server includes: a storage unit, storing a road map data, the road map data includes a road speed limit value database, the road speed limit value database records the road speed limit value of each road section; a network communication unit, wherein the road map data also includes a speeding camera position database, the speeding camera position database records a plurality of speeding camera position coordinates; and a processing unit, electrically connected to the storage unit and the network communication unit, and through The network communication unit receives the real-time positioning coordinates from the portable device, and determines whether a warning message needs to be generated according to the road map data and the real-time positioning coordinates, and if so, the processing unit communicates through the network The unit sends the warning message back to the portable device, and then the portable device wirelessly transmits the warning message to the outside through the short-range communication unit. The short-range communication module is arranged on the vehicle and can be wirelessly connected with the short-range communication unit of the portable device to receive the warning message. The instrument is disposed on the vehicle, and includes a display module and a processing module electrically connected to the display module and the short-range communication module, wherein the processing module receives the short-range communication module. warning message, and displaying the warning message on the display module. The vehicle speed sensor is arranged on the vehicle and is electrically connected to the processing module of the instrument. The processing module of the meter passes through the short distance The communication module wirelessly transmits a vehicle speed from the vehicle speed sensor to the portable device, and then the portable device transmits the vehicle speed to the cloud server through the network communication unit, and the cloud server The processing unit determines whether the vehicle speed is greater than the road speed limit value of the road section to which the real-time positioning coordinate belongs, and if so, the processing unit of the cloud server generates the warning message including the road speed limit value and transmits it to the portable device, and then the portable device wirelessly transmits the warning message to the short-range communication module of the vehicle, and the short-range communication module transmits the warning message to the processing module of the instrument, and then the processing module The group displays the road speed limit value of the warning message on the display module. The processing unit of the cloud server determines whether the distance between the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is less than a preset distance, and if so, the processing unit of the cloud server generates a data including a The warning message of the speeding camera warning graphic is transmitted to the portable device, and then the portable device wirelessly transmits the warning message to the short-range communication module of the vehicle, and the short-range communication module then transmits the warning message It is transmitted to the processing module of the instrument, and then the processing module displays the speeding camera warning graphic of the warning message on the display module. The processing unit of the cloud server automatically switches between different preset distances according to the vehicle speed. When the vehicle speed is less than or equal to 50km/h, the preset distance is 300m, and when the vehicle speed is greater than or equal to 51km/h and When the speed is less than or equal to 70km/h, the preset distance is 500m, and when the vehicle speed is greater than or equal to 71km/h, the preset distance is 700m.

The warning system for a vehicle in the technology of claim 7 of the present invention, the portable device The short-range communication unit is set as a Bluetooth unit, and the short-range communication module of the vehicle is a Bluetooth module.

In the vehicle warning system according to the technology of claim 8 of the present invention, the storage unit of the portable device stores an application program, and the application program can be automatically executed in the background without the user's operation. When the power of the meter is turned on, the application program makes the short-range communication unit of the portable device connect with the short-range communication module of the vehicle via Bluetooth, and causes the portable device to transmit the real-time positioning coordinates to the outside to the cloud server.

In the vehicle warning system in the technology of claim 9 of the present invention, the vehicle speed sensor is a wheel speed sensor.

In the vehicle warning system in the technology of claim 10 of the present invention, the portable device is a smart phone, a tablet computer, or a wearable device.

The effect of the present invention by claiming items 1 and 6 is that the warning messages such as speeding warning and speeding camera are not displayed on the same navigation screen as the navigation map, but additionally display warnings such as speeding warning and speeding camera on the original instrument of the vehicle Therefore, the warning message on the display screen of the meter is very easy to identify, so it can immediately remind the user that he has speeded and/or there is a speeding camera ahead.

1: Vehicle

11: short-range communication module

12: Meter

120: Display module

1201: Warning message

1202: Warning message

121: Processing modules

13: Speed sensor

2: Portable device

20: Storage unit

200: Application (APP)

201: Road Maps

2011: Road Speed Limit Database

2012: Speed Camera Location Database

21: Satellite positioning unit

22: short-range communication unit

23: Processing unit

24: Network communication unit

25: Display unit

26: Input unit

3: Cloud server

30: storage unit

301: Road Maps

3011: Road Speed Limit Database

3012: Speed Camera Location Database

31: Network communication unit

32: Processing unit

9: Satellite positioning system

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a block diagram illustrating the first embodiment of the vehicle warning system of the present invention; FIG. 2 is an instrument screen The schematic diagram illustrates that the vehicle warning system of the present invention can display the road speed limit value and the speeding camera warning graphic on the instrument of the vehicle; and FIG. 3 is a block diagram illustrating the second embodiment of the vehicle warning system of the present invention.

Referring to FIGS. 1 and 2 , the first embodiment of the vehicle warning system of the present invention is suitable for a vehicle 1 , and includes a portable device 2 , a short-range communication module 11 and a meter disposed in the vehicle 1 . 12, and a vehicle speed sensor 13, wherein the vehicle speed sensor 13 may be, for example, a wheel speed sensor or the like.

In the first embodiment, the portable device 2 can be, for example, a smart phone, a tablet computer, or a wearable device, and includes a storage unit 20, a satellite positioning unit 21, a short-range communication unit 22, A network communication unit 24 , a display unit 25 , an input unit 26 , and an electrical connection to the storage unit 20 , the satellite positioning unit 21 , the short-range communication unit 22 , the network communication unit 24 , and the display unit 25 and the processing unit 23 of the input unit 26 .

The storage unit 20 of the portable device 2 stores an application program (APP) 200 including a road map 201 . In this first embodiment, the application 200 is It can be automatically executed in the background without user operation, that is, when the user downloads and installs the application 200 using the portable device 2 and uses the application 200 to complete the portable device for the first time 2 After pairing with the wireless connection between the short-range communication module 11 of the vehicle 1, the portable device 2 will automatically execute the application 200 in the background as long as the portable device 2 is turned on. The meter 12 of the vehicle 1 is powered on (Key ON), the portable device 2 and the meter 12 of the vehicle 1 can be automatically wirelessly connected, so that the application 200 can automatically execute speed warning and speed photography in the background Two warning functions.

In the first embodiment, the road map data 201 includes a road speed limit value database 2011 and a speeding camera location database 2012 . The road speed limit database 2011 records the road speed limit of each road segment. And the speed camera location database 2012 records several speed camera location coordinates.

The satellite positioning unit 21 generates a real-time positioning coordinate according to a satellite positioning signal sent by a satellite positioning system 9 . In this first embodiment, the satellite positioning system 9 may be, for example, a global positioning system (GPS) or the like.

The short-range communication unit 22 of the portable device 2 can be, for example, a Bluetooth unit or the like.

The network communication unit 24 of the portable device 2 can be, for example, a 4G, 5G mobile communication unit or the like.

The processing unit 23 of the portable device 2 is electrically connected to the storage unit 20, The satellite positioning unit 21 , the short-range communication unit 22 , the network communication unit 24 , the display unit 25 and the input unit 26 , and according to the road map 201 and the real-time positioning coordinates of the portable device 2 , Determine whether a warning message related to the road map 201 and the real-time positioning coordinates needs to be generated, and if so, the processing unit 23 wirelessly transmits the warning message to the outside through the short-range communication unit 22, so that the vehicle 1 The short-range communication module 11 can receive the warning message.

In the first embodiment, the short-range communication module 11 of the vehicle 1 is a Bluetooth module, so as to be able to wirelessly connect with the short-range communication unit 22 of the portable device 2 .

In the first embodiment, the meter 12 includes a display module 120, and a processing module 121 electrically connected to the display module 120, the short-range communication module 11 and the vehicle speed sensor 13, wherein, The processing module 121 receives the warning message from the short-range communication module 11 and displays the warning message on the display module 120 .

In the first embodiment, when the power of the meter 12 is turned on, the short-range communication module 11 of the vehicle 1 is immediately connected with the short-range communication unit 22 of the portable device 2 via Bluetooth. Therefore, the processing module 121 of the meter 12 can wirelessly transmit a vehicle speed from the vehicle speed sensor 13 to the portable device 2 through the short-range communication module 11 .

Next, the processing unit 23 of the portable device 2 determines whether the vehicle speed is greater than the road speed limit value of the road section to which the real-time positioning coordinates belong. As shown in FIG. 2 , if the processing unit 23 determines that the vehicle speed is greater than the road of the road section to which the real-time positioning coordinates belong speed limit value, the processing unit 23 generates a warning message 1201 including the road speed limit value and transmits it to the short-range communication module 11 of the vehicle 1 through the short-range communication unit 22, and then the short-range communication module 11 The warning message 1201 is sent to the processing module 121 of the meter 12, and the processing module 121 displays the road speed limit value of the warning message 1201 on the display module 120. For example, FIG. 2 shows the vehicle The current speed of 1 is 53km/h, because the road speed limit value of the road section to which the real-time positioning coordinate recorded in the road speed limit database 2011 belongs is 50km/h, that is, the current speed of the vehicle 1 is 53km/h. The road speed limit value exceeds 50 km/h, so the warning message 1201 generated by the processing unit 23 of the portable device 2 may include the road speed limit value "50", and the warning message 1201 is transmitted to the meter 12 The display module 120 displays on the display module 120 to remind the user of the vehicle 1 (such as a motorcycle rider) that the vehicle speed has exceeded the road speed limit value, and the vehicle speed should be reduced to avoid danger and avoid being punished.

In addition, the processing unit 23 of the portable device 2 can also simultaneously determine whether the distance between the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is less than a predetermined distance.

In the first embodiment, the processing unit 23 of the portable device 2 automatically switches between different preset distances according to the vehicle speed, wherein when the vehicle speed is less than or equal to 50 km/h, the preset distance is 300m, when the vehicle speed is greater than or equal to 51km/h and less than or equal to 70km/h, the preset distance is 500m, and when the vehicle speed is greater than or equal to 71km/h, the preset distance is 700m.

Also as shown in FIG. 2 , if the processing unit 23 determines that the distance between the nearest speeding camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is already smaller than the preset distance, the processing unit 23 generates a speed record including a speeding The warning message 1202 of the photographic warning graphic (for example, FIG. 2 shows that the speeding photographing warning graphic is a camera graphic) is transmitted to the short-range communication module 11 of the vehicle 1 through the short-range communication unit 22, and then the short-range communication module 11. The group 11 transmits the warning message 1202 to the processing module 121 of the meter 12, and the processing module 121 displays the speeding camera warning graphic of the warning message 1202 on the display module 120, as shown in FIG. 2 , to remind the user of the vehicle 1 (such as a locomotive rider) that there is a speeding camera ahead, and should avoid speeding to avoid penalty.

Referring to FIGS. 2 and 3 , the main difference between the second embodiment of the warning system of the vehicle in FIG. 3 and the above-mentioned first embodiment of FIG. 1 is that in the second embodiment, the portable device 2 The application 200 does not include the road map data 201, but builds a road map data 301 in a cloud server 3, and the cloud server 3 determines whether to generate a warning message.

In the second embodiment, the cloud server 3 includes a storage unit 30 for storing the road map data 301 , a network communication unit 31 , and a process for electrically connecting the storage unit 30 and the network communication unit 31 The unit 32, wherein the road map data 301 includes a road speed limit value database 3011 and a speeding camera location database 3012.

In this second embodiment, the application 200 of the portable device 2 is It can be automatically executed in the background without the user's operation. When the power of the meter 12 of the vehicle 1 is turned on (Key ON), the application 200 makes the short-range communication unit of the portable device 2 22 is connected with the short-range communication module 11 of the vehicle 1 via Bluetooth, and then the portable device 2 transmits the real-time positioning coordinates and the vehicle speed received from the vehicle speed sensor 13 of the vehicle 1 through the Internet to the cloud server 3.

Next, the processing unit 3 of the cloud server 3 determines, according to the road speed limit database 3011, whether the vehicle speed is greater than the road speed limit of the road section to which the real-time positioning coordinates belong. As shown in FIG. 2 , if the processing unit 32 determines that the vehicle speed is greater than the road speed limit value of the road section to which the real-time positioning coordinate belongs, the processing unit 32 generates a warning message 1201 including the road speed limit value through the network communication The unit 31 and the Internet are transmitted to the network communication unit 24 of the portable device 2 . Then, the portable device 2 wirelessly transmits the warning message 1201 to the short-range communication module 11 of the vehicle 1 through the short-range communication unit 22 , and then the short-range communication module 11 transmits the warning message 1201 To the processing module 121 of the meter 12, the processing module 121 then displays the road speed limit value of the warning message 1201 on the display module 120. For example, FIG. 2 shows that the current speed of the vehicle 1 is 53km /h, since the road speed limit value of the road section to which the real-time positioning coordinates belong to the road speed limit value database 3011 of the cloud server 3 is recorded is 50km/h, that is, the current speed of the vehicle 1 is 53km/h. The road speed limit value exceeds 50km/h, so the warning message 1201 in FIG. 2 may include the road speed limit value “50” to remind the user of the vehicle 1 (such as a motorcycle rider) that the vehicle speed has exceeded the road speed limit value value, the speed should be reduced to avoid danger and avoid penalties.

In addition, the processing unit 32 of the cloud server 3 can also determine whether the distance between the nearest speed camera position coordinates in front of the real-time positioning coordinates and the real-time positioning coordinates is less than a preset distance according to the speed camera position database 3012 .

In the second embodiment, the processing unit 32 of the cloud server 3 automatically switches between different preset distances according to the vehicle speed, wherein when the vehicle speed is less than or equal to 50 km/h, the preset distance is 300m, when the vehicle speed is greater than or equal to 51km/h and less than or equal to 70km/h, the preset distance is 500m, and when the vehicle speed is greater than or equal to 71km/h, the preset distance is 700m.

Also as shown in FIG. 2 , if the processing unit 32 of the cloud server 3 determines that the distance between the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is less than the preset distance, the processing unit will 32 Generate a warning message including a speeding camera warning graphic (for example, FIG. 2 shows that the speeding camera warning graphic is a camera graphic) 1202 Send the network communication to the portable device 2 through the network communication unit 31 and the Internet unit 24. Then, the portable device 2 wirelessly transmits the warning message 1202 to the short-range communication module 11 of the vehicle 1 through the short-range communication unit 22 , and then the short-range communication module 11 transmits the warning message 1202 To the processing module 121 of the meter 12, the processing module 121 then displays the speeding camera warning graphic of the warning message 1202 on the display module 120, as shown in FIG. 2, to prompt the use of the vehicle 1 (such as motorcycle riders), there is a speeding camera ahead, and speeding should be avoided. to avoid punishment.

To sum up, the vehicle warning system of the present invention has at least the following advantages and functions: (1) The speeding warning message 1201 and the speeding camera warning message 1202 are not displayed on the navigation screen, but on the original instrument 12 of the vehicle 1 . The warning message 1201 for speeding and the warning message 1202 for speeding photography are additionally displayed, so the warning messages 1201 and 1202 displayed on the meter 12 are very easy to identify, so the user can be immediately reminded that they are speeding and/or that there is a speeding camera ahead; ( 2) Determine whether the action and function of the alert message 1201 and/or the alert message 1202 need to be generated by the portable device 2 (such as a smart phone, a tablet computer, or a wearable device, etc.) or the cloud server 3 to execute, Therefore, the instrument 12 of the vehicle 1 does not need to be equipped with a circuit or program for determining whether the warning message 1201 and/or the warning message 1202 needs to be generated, nor does it need to be equipped with GPS, so the manufacturing cost of the vehicle 1 can be reduced; (3) the When the portable device 2 or the cloud server 3 determines whether the warning message 1201 needs to be generated, it is based on the vehicle speed provided by the vehicle speed sensor 13 (such as a wheel speed sensor, etc.) of the vehicle 1 . Instead of the GPS speed, the timing of determining that the vehicle 1 has exceeded the speed is accurate, so the warning message 1201 can be correctly and immediately prompted to the user; therefore, the purpose of the present invention can be achieved.

However, the above are only examples of the present invention, and should not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the patent specification are still included in the scope of the present invention. within the scope of the invention patent.

1...Vehicle 11…..close range communication module 12…..meters 120….Display module 121....processing module 13.....Vehicle speed sensor 2...Portable Devices 20.....storage units 200….Application Program (APP) 201….road map 2011…Road Speed Limit Database 2012…speed camera location database 21.....Satellite positioning unit 22.....close range communication unit 23.....processing unit 24.....Network Communication Unit 25.....Display unit 26.....Input unit 9…Satellite Positioning System

Claims (10)

A vehicle warning system is suitable for a vehicle, and includes: a portable device, including: a storage unit, storing a road map data, the road map data includes a road speed limit value database, the road speed limit value The database records the road speed limit value of each road section, wherein the road map data also includes a speeding camera location database, the speeding camera location database records several speeding camera location coordinates; a satellite positioning unit, according to a satellite positioning The satellite positioning signal sent by the system generates a real-time positioning coordinate; a short-range communication unit; The real-time positioning coordinates determine whether a warning message needs to be generated. If so, the processing unit wirelessly transmits the warning message to the outside through the short-range communication unit; a short-range communication module is installed in the vehicle and can communicate with The short-range communication unit of the portable device is wirelessly connected to receive the warning message; a meter is disposed on the vehicle and includes a display module and a connection that is electrically connected to the display module and the short-range communication module a processing module, wherein the processing module receives the warning message from the short-range communication module, and displays the warning message on the display module; and a vehicle speed sensor, which is arranged on the vehicle and is electrically the processing module connected to the instrument; The processing module of the instrument wirelessly transmits a vehicle speed from the vehicle speed sensor to the portable device through the short-range communication module, and then the processing unit of the portable device determines whether the vehicle speed is greater than the vehicle speed. Real-time positioning of the road speed limit value of the road section to which the coordinates belong, and if so, the processing unit of the portable device generates the warning message including the road speed limit value and transmits it to the short-range distance of the vehicle through the short-range communication unit communication module, and then the short-range communication module transmits the warning message to the processing module of the instrument, and the processing module displays the road speed limit value of the warning message on the display module; the possible The processing unit of the portable device determines whether the distance between the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time positioning coordinate is less than a preset distance, and if so, the processing unit of the portable device generates a data including a The warning message of the speeding camera warning graphic is transmitted to the short-range communication module of the vehicle through the short-range communication unit, and then the short-range communication module transmits the warning message to the processing module of the instrument, and the processing module The group then displays the speeding camera warning graphic of the warning message on the display module, and the processing unit of the portable device automatically switches the different preset distances according to the vehicle speed. When the vehicle speed is less than or equal to 50km /h, the preset distance is 300m, when the vehicle speed is greater than or equal to 51km/h and less than or equal to 70km/h, the preset distance is 500m, when the vehicle speed is greater than or equal to 71km/h, the preset distance The distance is 700m. The warning system for a vehicle according to claim 1, wherein the short-range communication unit of the portable device is a Bluetooth unit, and the short-range communication module of the vehicle is a Bluetooth module. The warning system for a vehicle as claimed in claim 2, wherein the storage unit of the portable device stores an application program including the road map data, and the application program can be Automatically executed in the background, when the power of the meter is turned on, the NFC module of the vehicle is immediately connected with the NFC unit of the portable device via Bluetooth, so that the processing unit of the portable device can According to the road map data and the real-time positioning coordinates of the application, it is determined whether the warning message needs to be generated. The warning system for a vehicle according to claim 1, wherein the vehicle speed sensor is a wheel speed sensor. The warning system for a vehicle according to claim 1, wherein the portable device is a smart phone, a tablet computer, or a wearable device. A warning system for a vehicle is suitable for a vehicle, and includes: a portable device, including: a satellite positioning unit, which generates a real-time positioning coordinate according to a satellite positioning signal sent by a satellite positioning system; a short-range communication unit ; a network communication unit; and a processing unit, electrically connected to the satellite positioning unit, the short-range communication unit, and the network communication unit, and will transmit the real-time positioning coordinates to the outside through the network communication unit; A cloud server, including: a storage unit, storing a road map data, the road map data includes a road speed limit value database, the road speed limit value database records the road speed limit value of each road section, wherein, the road speed limit value The road map also includes a speeding A camera position database, the speed camera position database records a plurality of speed camera position coordinates; a network communication unit; and a processing unit, electrically connected to the storage unit and the network communication unit, and receiving through the network communication unit The real-time positioning coordinates sent from the portable device, and according to the road map and the real-time positioning coordinates, determine whether a warning message needs to be generated, if so, the processing unit sends the warning message through the network communication unit It is sent back to the portable device, and then the portable device wirelessly transmits the warning message to the outside through the short-range communication unit; a short-range communication module is installed in the vehicle and can communicate with the portable device. The short-range communication unit of the device is wirelessly connected to receive the warning message; an instrument is disposed on the vehicle and includes a display module and a processing module electrically connected to the display module and the short-range communication module, Wherein, the processing module receives the warning message from the short-range communication module, and displays the warning message on the display module; a vehicle speed sensor is disposed on the vehicle and is electrically connected to the instrument A processing module; the processing module of the instrument wirelessly transmits a vehicle speed from the vehicle speed sensor to the portable device through the short-range communication module, and then the portable device transmits the vehicle speed through the network communication unit The vehicle speed is sent to the cloud server, and the processing unit of the cloud server determines whether the vehicle speed is greater than the road speed limit value of the road section to which the real-time positioning coordinate belongs. the police officer of the road speed limit Send the warning message to the portable device, and then the portable device wirelessly sends the warning message to the short-range communication module of the vehicle, and the short-range communication module then transmits the warning message to the instrument's a processing module, and then the processing module displays the road speed limit value of the warning message on the display module; the processing unit of the cloud server determines the nearest speed camera position coordinate in front of the real-time positioning coordinate and the real-time speed limit value Whether the distance between the positioning coordinates is less than a preset distance, if so, the processing unit of the cloud server generates the warning message including a speeding camera warning graphic and transmits it to the portable device, and then the portable device sends the warning message to the portable device. The warning message is wirelessly transmitted to the short-range communication module of the vehicle, and the short-range communication module then transmits the warning message to the processing module of the meter, and then the processing module takes the speeding photo of the warning message A warning graphic is displayed on the display module, and the processing unit of the cloud server automatically switches between different preset distances according to the vehicle speed. When the vehicle speed is less than or equal to 50km/h, the preset distance is 300m, When the vehicle speed is greater than or equal to 51km/h and less than or equal to 70km/h, the preset distance is 500m, and when the vehicle speed is greater than or equal to 71km/h, the preset distance is 700m. The warning system for a vehicle as claimed in claim 6, wherein the short-range communication unit of the portable device is a Bluetooth unit, and the short-range communication module of the vehicle is a Bluetooth module. The warning system for a vehicle as claimed in claim 7, wherein the storage unit of the portable device stores an application program, and the application program can be automatically executed in the background without the user's operation. The meter power lead When communicating, the application program connects the NFC unit of the portable device with the NFC module of the vehicle via Bluetooth, and causes the portable device to transmit the real-time positioning coordinates to the cloud server. The warning system for a vehicle according to claim 6, wherein the vehicle speed sensor is a wheel speed sensor. The warning system for a vehicle according to claim 6, wherein the portable device is a smart phone, a tablet computer, or a wearable device.

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