CN101526362A - Navigation system and navigation method and device thereof - Google Patents

Abstract

The invention relates to a navigation system which comprises a fuel detection module and a navigation device, wherein the fuel detection module is used for detecting the remnant fuel of a vehicle, generating a remnant fuel value and a contact signal when the remnant fuel value reaches a preset value, and the navigation device is used for responding the contact signal and querying a map for a gas station at a distance smaller than or equal to a driving range from a vehicle site so as to provide a navigation route for the vehicle running to the gas station. In addition, the invention also provides a navigation method and the navigation device.

Description

Navigation system and its navigation method and device

technical field

The invention relates to the field of navigation, in particular to a navigation system and a navigation method and device thereof.

Background technique

With the development of social economy, the quickening pace of life and the increase of income, more and more people have purchased private vehicles. Private vehicles provide convenience for personal travel. For example, they can drive their own vehicles and go out with their families during holidays to enjoy a happy holiday.

However, owners of private vehicles often encounter the problem of running out of gas on the way. Although some careful car owners will check the amount of fuel in the vehicle's fuel tank before traveling, they often overestimate the distance that the remaining fuel in the vehicle's fuel tank can travel. During driving, when they find the remaining fuel in the vehicle's fuel tank Insufficient, can not find the nearest gas station in time, and finally stay on the highway with sparse vehicles waiting for passing vehicle support.

Contents of the invention

In view of this, it is necessary to provide a navigation system that prevents the vehicle from being stranded on the way due to lack of fuel.

It is also necessary to provide a navigation device that prevents the vehicle from being stranded on the way due to lack of oil.

It is also necessary to provide a navigation method to avoid the situation that the vehicle is stranded on the way due to lack of oil.

A navigation system, the navigation system comprising: an oil quantity detection module and a navigation device;

The fuel quantity detection module is used to detect the remaining fuel quantity of the vehicle, generate the remaining fuel quantity value, and generate a trigger signal when the remaining fuel quantity value reaches a preset value;

The navigation device is used to respond to the trigger signal and query the gas stations on the map whose distance from the current vehicle location is less than or equal to the feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station, where the feasible mileage is the distance that the vehicle can travel with the remaining fuel .

A navigation system, the navigation system comprising: an oil quantity detection module and a navigation device;

The fuel quantity detection module is used to detect the remaining fuel quantity of the vehicle, generate the remaining fuel quantity value, and generate a trigger signal when the remaining fuel quantity value reaches a preset value;

The navigation device is used for responding to the trigger signal, querying the gas stations whose distance from the current vehicle location in the map is less than or equal to the preset feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station.

A navigation device, when the navigation device receives a trigger signal generated by the vehicle because the remaining fuel value in the fuel tank reaches a preset value, it queries the gas stations on the map whose distance from the current vehicle location is less than or equal to the feasible mileage, To provide a navigation route for the vehicle to go to the gas station, where the feasible mileage is the distance that the remaining fuel can be used by the vehicle.

A navigation device, when the navigation device receives a trigger signal generated by the vehicle because the remaining fuel value in the fuel tank reaches a preset value, it searches the map for refueling where the distance from the current vehicle location is less than or equal to the preset feasible mileage Stations to provide navigation directions for vehicles to gas stations.

A navigation method, comprising the steps of:

Detect and judge whether the remaining fuel value in the vehicle fuel tank reaches the preset value;

When the remaining fuel in the fuel tank reaches the preset value, query the gas station on the map whose distance from the current vehicle location is less than or equal to the feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station, where the feasible mileage is the remaining fuel. The distance traveled by the vehicle.

A navigation method, comprising the steps of:

Detect and judge whether the remaining fuel value in the vehicle fuel tank reaches the preset value;

When the remaining fuel in the fuel tank reaches the preset value, query the gas stations on the map whose distance from the current vehicle location is less than or equal to the preset feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station.

Through the above-mentioned navigation system, navigation device and navigation method, when the amount of fuel in the vehicle's fuel tank reaches the preset value, the navigation device will automatically start to query the gas station on the map whose distance from the current vehicle location is less than or equal to the feasible mileage for the vehicle to go to. The gas station provides a navigation route, so that the owner can go to the gas station to refuel in time, thereby avoiding the situation that the vehicle cannot continue to move due to lack of fuel.

Description of drawings

Fig. 1 is a functional block diagram of a navigation system in a preferred embodiment.

Fig. 2 is a flowchart of a navigation method in a preferred embodiment.

Fig. 3 is a flowchart of a navigation method in another preferred embodiment.

Detailed ways

The present invention provides a navigation system that provides navigation routes for vehicles. When the navigation system detects that the amount of fuel in the vehicle's fuel tank reaches a preset value, the navigation system automatically queries the distance from the current vehicle location in the map that is less than or equal to the feasible mileage. Gas station, and provide navigation route for the vehicle to go to the gas station. Among them, the preset value refers to the value of the minimum amount of fuel held in the fuel tank of the vehicle. When it is equal to or lower than this value, it means that the owner needs to go to the gas station to refuel in time; distance.

As shown in FIG. 1 , it is a functional block diagram of a navigation system 20 in a preferred embodiment. The navigation system 20 includes a fuel quantity detection module 22 , a mileage calculation module 24 , a fuel consumption calculation module 26 , a feasible mileage calculation module 27 and a navigation device 28 . Wherein, the fuel consumption calculation module 26 is respectively connected with the fuel quantity detection module 22 , the mileage calculation module 24 and the feasible mileage calculation module 27 , and the feasible mileage calculation module 27 is also connected with the fuel quantity detection module 22 and the navigation device 28 respectively.

The fuel quantity detection module 22 is used to detect the remaining fuel quantity of the vehicle, generate a remaining fuel quantity value, and generate a trigger signal when the remaining fuel quantity value reaches a preset value.

The mileage calculation module 24 is used to calculate the mileage traveled by the vehicle.

The fuel consumption calculation module 26 is used to calculate the fuel consumption per unit mileage of the vehicle according to the mileage traveled by the vehicle and the remaining fuel value. For example, the oil detection module 22 successively obtains two remaining oil values, first calculates the difference between the two remaining oil values, and then divides the difference by the mileage traveled by the vehicle during the two remaining oil values Get the fuel consumption per unit mileage.

The feasible mileage calculation module 27 is used to calculate the feasible mileage of the vehicle according to the remaining fuel quantity value provided by the fuel quantity detection module 22 and the fuel consumption per unit mileage of the vehicle. For example, when the remaining fuel value reaches a preset value, the current remaining fuel value or the preset value is divided by the latest fuel consumption per unit mileage to obtain the current mileage that the vehicle can travel.

The navigation device 28 is configured to respond to the trigger signal and search the map for gas stations whose travel distance from the current vehicle location is less than or equal to the feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station. For example, the navigation device 28 searches for each gas station in the map, and calculates the distance value from the position of the vehicle in the map to each gas station, then selects the gas station corresponding to the distance value less than or equal to the feasible mileage, and generates a navigation route Come and guide the vehicle to go to the gas station to refuel. Wherein, the navigation device 28 can receive the positioning signal provided by the Global Positioning System (GPS) or the Global Navigation Satellite System (Global Navigation Satellite Systems, GNSS), to complete the vehicle positioning and navigation functions. In addition, after receiving the trigger signal, the navigation device 28 can automatically start the navigation, and can also start the navigation after the owner of the vehicle confirms.

In another embodiment, the calculation of the feasible mileage performed by the mileage calculation module 24 , the fuel consumption calculation module 26 and the feasible mileage calculation module 27 in the navigation system 20 may be replaced by a preset feasible mileage value. Wherein, the preset mileage value is set according to the preset value and the fuel consumption per unit mileage of the vehicle. Generally, the fuel consumption per unit mileage of the vehicle does not vary greatly. Therefore, when the remaining fuel value reaches a preset value, the preset feasible mileage value can be used to find a gas station. However, some vehicles have a large difference in weight when they are empty and loaded (such as trucks and passenger cars), and their fuel consumption per unit mileage will vary greatly. The oil volume is more accurate and the guarantee is stronger.

As shown in Figure 2, it is a flowchart of a navigation method in a preferred embodiment, including the following steps:

Step S300, detecting the remaining fuel in the fuel tank of the vehicle and generating a value of the remaining fuel.

Step S302, calculating the mileage traveled by the vehicle.

Step S304, calculating the fuel consumption per unit mileage of the vehicle according to the mileage and the change of the remaining fuel value.

Step S306, when the remaining fuel value reaches the preset value, calculate the feasible mileage according to the fuel consumption per unit mileage of the vehicle and the remaining fuel value (or the preset value).

Step S308, searching the map for gas stations whose distance from the current vehicle location is less than or equal to the feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station.

As shown in Figure 3, it is a flowchart of a navigation method in another preferred embodiment, including the following steps:

Step S400, detecting and judging whether the remaining fuel volume of the vehicle reaches a preset value.

Step S402, when the remaining fuel amount reaches the preset value, search the map for gas stations whose distance from the current vehicle location is less than or equal to the preset feasible mileage, so as to provide a navigation route for the vehicle to go to the gas station.

As mentioned above, through the above navigation system, navigation method and device, when the amount of fuel in the vehicle's fuel tank reaches the preset value, the navigation device will automatically start to search the map for gas stations whose distance from the current vehicle location is less than or equal to the feasible mileage , to provide a navigation route for the vehicle to go to the gas station, so that the owner can go to the gas station to refuel in time, thereby avoiding the situation that the vehicle cannot continue to move due to lack of fuel.

Claims (9)

1. a navigational system is characterized in that, described navigational system comprises: oil mass detection module and guider;

Described oil mass detection module is used to detect the Fuel Oil Remaining of vehicle, produces the remaining oil value, and produces trigger pip when the remaining oil value reaches preset value;

Described guider is used to respond trigger pip, the path distance of the current vehicular seat of inquiry map middle distance is less than or equal to the refuelling station of feasible mileage, think that vehicle goes to the refuelling station that navigation way is provided, wherein, described feasible mileage is a Fuel Oil Remaining distance of travelling of can buying car in installments.

2. navigational system as claimed in claim 1 is characterized in that: described navigational system also comprises mileage computing module, oil consumption computing module, feasible mileage computing module;

Described mileage computing module is used to calculate the mileage number of vehicle ';

Described oil consumption computing module is used for the unit mileage fuel consumption according to described mileage number and described remaining oil value calculating vehicle;

Described feasible mileage computing module is used for calculating according to described remaining oil value and described unit mileage fuel consumption gauge the described feasible mileage of vehicle.

3. navigational system as claimed in claim 1, it is characterized in that: described guider is after receiving described trigger pip, search each refuelling station in the map, calculate the distance value of the position at vehicle place in map to each refuelling station, the distance of selecting to be less than or equal to described feasible mileage is worth pairing refuelling station.

4. a navigational system is characterized in that, described navigational system comprises: oil mass detection module and guider;

Described oil mass detection module is used to detect the Fuel Oil Remaining of vehicle, produces the remaining oil value, and produces trigger pip when the remaining oil value reaches preset value;

Described guider is used to respond trigger pip, and the path distance of the current vehicular seat of inquiry map middle distance is less than or equal to the refuelling station of default feasible mileage, thinks that vehicle goes to the refuelling station that navigation way is provided.

5. guider, it is characterized in that: described guider receives vehicle when reaching the trigger pip that preset value produces because of the remaining oil value in the fuel tank, the path distance of the current vehicular seat of inquiry map middle distance is less than or equal to the refuelling station of feasible mileage, think that vehicle goes to the refuelling station that navigation way is provided, wherein, described feasible mileage is a Fuel Oil Remaining distance of travelling of can buying car in installments.

6. guider, it is characterized in that: described guider receives vehicle when reaching the trigger pip that preset value produces because of the remaining oil value in the fuel tank, the refuelling station that the path distance of the current vehicular seat of inquiry map middle distance is less than or equal to default feasible mileage thinks that vehicle goes to the refuelling station that navigation way is provided.

7. an air navigation aid comprises the steps:

Detection also judges whether the remaining oil value in the oil tank of vehicle reaches preset value;

When the Fuel Oil Remaining in the fuel tank reaches preset value, the path distance of the current vehicular seat of inquiry map middle distance is less than or equal to the refuelling station of feasible mileage, think that vehicle goes to the refuelling station that navigation way is provided, wherein, described feasible mileage is a Fuel Oil Remaining distance of travelling of can buying car in installments.

8. air navigation aid as claimed in claim 7 is characterized in that: also comprise the steps:

Calculate the mileage number that vehicle is exercised;

Calculate the unit mileage fuel consumption of vehicle according to described mileage number and described remaining oil value;

Calculate described feasible mileage according to described remaining oil value and described unit mileage fuel consumption.

9. an air navigation aid comprises the steps:

Detection also judges whether the remaining oil value in the oil tank of vehicle reaches preset value;

When the Fuel Oil Remaining in the fuel tank reached preset value, the path distance of the current vehicular seat of inquiry map middle distance was less than or equal to the refuelling station of default feasible mileage, thinks that vehicle goes to the refuelling station that navigation way is provided.

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