KR19980029648A - Route guidance method according to exhaustion of vehicle fuel - Google Patents

Abstract

The present invention relates to a route guidance method according to fuel depletion of a vehicle, and when the vehicle is running and receives information according to the amount of current fuel detected by the fuel sensor as a digital signal and is depleted by recognizing whether it is depleted. While operating the traffic guidance system, the information on the vehicle is checked through the GPS receiver and the sensor to search for the gas station close to the current position of the vehicle, and then the first gas station and the second By searching for information and displaying it on a map, the user can be informed by voice so that the driver of the vehicle can be prevented from being depleted as the fuel is depleted.

Description

Route guidance method according to exhaustion of vehicle fuel

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a route guidance method according to depletion of fuel in a car navigation system that enables the setting and guiding of routes based on a starting point and a destination. If the fuel needs to be replenished, the driver selects a gas station near and in the direction of the current vehicle, and distinguishes between where it can be pumped firstly and where it can be fueled secondly. The present invention relates to a route guidance method according to exhaustion of fuel of a vehicle to enable stable driving even without knowing the location of the vehicle.

Nowadays, the increase of vehicles has led many people to drive their own cars to get to their destinations, and due to the complicated road conditions and the increasing number of vehicles, there are many difficulties in getting to the destination quickly and accurately. In many cases, the state of the fuel is not checked while the fuel is exhausted while driving on the road, resulting in inconvenience.

Therefore, conventionally, by connecting the flow meter of the instrument panel to the flow sensor installed in the flow tank, it is possible to visually check how much the current flow is at the same time, and when the flow sensor detects the depletion of the flow, it lights the flow warning lamp accordingly. The driver has been informed, but this means that the driver must look through the flow meter and flow warning lights on the instrument panel from time to time and the engine stops before reaching the gas station because the driver cannot know how much more can run at the current flow rate. There was a problem such as seeing the corruption.

Therefore, conventionally, the data of each map is divided and input by using CD-ROM (Compact Disk-Read Only Memory), and then the position of the current vehicle using GPS receiver, gyro sensor, geomagnetic sensor, vehicle speed sensor, etc. Using the vehicle navigation system to match with the data of the map and to display on the liquid crystal display installed inside the vehicle to visually know the location of the gas station.

However, according to the conventional vehicle navigation system as described above, the CD-ROM driver, the map program of the CD-ROM, the GPS receiver. By using hardware such as gyro sensor, geomagnetic sensor, vehicle speed sensor, etc., the map of longitude and latitude is converted into a flat map and displayed on the display screen, displaying the current location mark and destination mark of the vehicle and responding to the movement of the vehicle. Although the display does not recognize the fuel state of the vehicle, and even if the user requests information on the gas station, the vehicle may not know the traveling direction and the direction of the gas station, and thus it may not be efficiently used.

Accordingly, when the driver recognizes that the driver is depleted in the microprocessor that detects the amount of fuel remaining in the fuel tank through the flow sensor while driving the vehicle, the present invention operates the vehicle traffic guidance system to determine the current position and direction of the vehicle. It provides a route guidance method according to fuel exhaustion of the vehicle to prevent the vehicle from running out of fuel while the vehicle is running by reading information about a nearby gas station and guiding the first and second gas stations by voice. For that purpose.

In order to achieve the above object, the present invention enables a microprocessor to guide the location of a gas station in consideration of a driving direction of a vehicle in a general vehicle traffic guide system by using an image and a voice.

Recognizing whether the vehicle is in a depleted state by receiving information according to the current amount of fuel detected by the fuel sensor while the vehicle is running as a digital signal;

Automatically operating the vehicle traffic guidance system if the vehicle is depleted of fuel;

Checking the current position and driving direction of the vehicle through a GPS receiver and a sensor;

Searching for a gas station near the current location of the vehicle,

Searching for and displaying the information of the first gas station and the second gas station which can be quickly moved in the direction of movement of the gas stations, on a map;

In addition, the voice of the first gas station and the second gas station to the voice of the location and direction to prevent the driver who runs the vehicle is depleted as the fuel is exhausted.

1 is a block diagram schematically showing the overall configuration of the present invention.

2 is a flow chart illustrating an operation process of the present invention.

Explanation of symbols on the main parts of the drawings

1: key input 2: microprocessor

6: CD-ROM 8: liquid crystal display

12: CD-ROM audio 17: flow sensor

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In addition to the keys for the user to operate the vehicle, a selection key (SEL), a menu selection key (MENU), an up / down key (U / D), an input key (IN), and a position selection joystick (JOY) are provided. A key input unit 1 for receiving a user's option,

Upon receiving the user's option through the key input unit 1, the microprocessor 2 for controlling the internal operation according to the traffic guidance and the fuel state according to the method and order of control stored in the internal program memory 3; ,

First storage means of a memory 4 for temporarily storing and outputting information according to an operation under the control of the microprocessor 2;

A CD-ROM driver 5 for selectively outputting map data stored in a second storage means of a CD-ROM (Compact Disk-Read Only Momery) 6 under the control of the microprocessor 2;

A liquid crystal drive unit which displays an image on the liquid crystal display unit 8 as a data signal from a microprocessor 2 that selects map data including a route to a destination according to the map data read from the CD-ROM 6; With (7),

A sensor unit 9 which transmits an operation state of the vehicle to the microprocessor 2 through a geomagnetic sensor MAGNET, a gyro sensor GYRO, a speed sensor SPEED, and a brake sensor BREAK;

GPS (Global Positioning System) receiving unit 10 for receiving information about the position and driving direction of the vehicle from the satellite through the antenna 11,

Third storage means of the CD-ROM audio 12 for selectively outputting data of voice guidance according to the progress of the vehicle or the exhaustion of fuel under the control of the microprocessor 2;

Under the control of the microprocessor 2, the sound output from the third storage means of the CD-ROM audio 12 is adjusted to an appropriate level, amplified by the output amplifier 14, and then the sound is output through the speaker 15. The electronic volume 13 to listen to,

A flow sensor 17 which detects the amount of fuel currently remaining in the fuel tank 16 as an analog value,

The analog / digital converter 18 converts the analog value input from the flow sensor 17 into a digital value and transmits the analog value to the microprocessor 2.

The route guidance method according to the fuel depletion of the vehicle of the present invention configured as described above is to add information about the gas station to the map data so that it can be quickly navigated in the direction of the vehicle.

The amount of fuel currently remaining in the fuel tank 16 while the driver is driving the vehicle is detected as an analog value through the flow sensor 17 and converted into a digital value through the analog / digital converter 18 to the microprocessor 2 ) And the microprocessor 2 that has received the digital value information according to the amount of fuel determines whether the amount of remaining fuel corresponds to the depleted state (step 22).

If the fuel in the fuel tank 16 is currently depleted, the microprocessor 2 automatically switches to the mode of vehicle traffic guidance (step 23) and receives it via the antenna 11 from the satellite via the GPS receiver 10. While receiving the information on the situation of the road and the vehicle (step 24), the information about the direction of driving in the current position of the vehicle through the geomagnetic sensor, gyro sensor, speed sensors of the GPS receiver 10 and sensor unit 9 Confirm (step 25).

Then, the microprocessor 2 checks the information on the current position and the driving direction of the vehicle on a map (step 26), and then stores information about the gas station in the second storage means of the CD-ROM 6 in the CD-ROM driver ( Read through 5) (step 27) and search for the gas station at the position nearest to the current position of the vehicle (step 28).

Among the searched gas stations, information of the first gas station and the second gas station, which can be moved fastest in the state in consideration of the driving direction of the vehicle, is detected (step 29), and information about the second gas storage unit of the CD-ROM 6 is detected. Is read through the CD-ROM driver 5 (step 30), and then the corresponding data signal, clock signal and strobe signal are outputted to the liquid crystal drive unit 7 and displayed on the liquid crystal display unit 8 (step 31).

Then, the microprocessor 2 recognizes the address of the fourth storage means of the CD-ROM audio 14 capable of speaking the first gas station and the second gas station (step 32), and the CD-ROM audio 14 Outputs the control signal to the fourth storage means so that the voice signal according to the alarm is output as voice through the output amplifier 16 and the speaker 17 at an appropriate volume while passing through the electronic volume 15 (step) 33).

While performing the display of the map, the driver checks whether the driver selects and inputs information on the destination to which the vehicle is to be driven (step 34). If the driver inputs the information, the destination is recognized on the map (step 35). Mark the destination mark (step 36).

The location on the map corresponding to the current location of the vehicle recognized in step 26 is recognized (step 37), and the current denture mark of the vehicle is displayed on the current location of the vehicle (step 38).

When the vehicle is moved in the state, the position change is confirmed through the geomagnetic sensor, the gyro sensor, the speed sensor, and the brake sensors of the GPS receiver 11 and the sensor unit 10 (step 39). And the angular velocity through the geomagnetic sensor, gyro sensor of the sensor unit 10 (step 40).

Next, the movement of the vehicle is confirmed on the map displayed on the liquid crystal display 9 (step 41) and displayed while moving the current position mark of the vehicle according to the movement distance of the vehicle (step 42).

Therefore, according to the route guidance method according to the exhaustion of the fuel of the vehicle of the present invention, if the vehicle is running and receives the information according to the amount of the current fuel detected by the fuel sensor as a digital signal and is depleted, the vehicle is depleted. While operating the traffic guidance system, the information on the vehicle is checked through the GPS receiver and the sensor to search for the gas station close to the current position of the vehicle, and then the first gas station and the second By searching for information and displaying it on a map, the user can be informed by voice so that the driver of the vehicle can be prevented from being depleted as the fuel is depleted.

Claims (2)

Determining whether the driver is depleted by recognizing, through the flow sensor, the amount of fuel remaining in the fuel tank while the driver is driving the vehicle; When the vehicle is exhausted, switching to the traffic guidance mode and receiving information on the vehicle while checking the current position and driving direction of the vehicle on a map; Reading information about a gas station and detecting information of a gas station that can be the fastest from the current location of the vehicle, Displaying information about the gas station in an image; The route guidance method according to the exhaustion of fuel of the vehicle, characterized in that performed by the step of telling the information about the gas station by voice. The method of claim 1, further comprising: automatically switching to a mode of vehicle traffic guidance by the microprocessor in response to the amount of fuel remaining in the fuel tank while the driver is running the vehicle; Checking information about a driving direction at a current position of the vehicle while receiving information about the vehicle through a GPS receiver and a sensor; After checking information on the current location and driving direction of the vehicle on a map, searching for a gas station closest to the current location of the vehicle to detect information of a first gas station and a second gas station that can be quickly moved; The route guidance method according to the exhaustion of the fuel of the vehicle, characterized in that performed by the step of displaying the information on the liquid crystal display at the same time and informs by voice.