KR20100011391A - Navigation for rapid acceleration/rapid braking warning of vehicle and method thereof - Google Patents

Abstract

PURPOSE: A navigation device and a method thereof are provided to warn sudden acceleration/braking of a vehicle to the driver, thereby reducing the damage and fuel loss. CONSTITUTION: A navigation device comprises a GPS receiver(102), a memory(108), and a controller(100). In the memory, an electronic map database including local map data is stored. The controller per calculates the speed of the vehicle based on the vehicle location information per hour which is output from the GPS receiver and indicates it in real time on the map extracted from the memory. The controller also calculates the increase and decrease of vehicle speed per hour and then determines sudden acceleration/braking when the speed increase/decrease is over a specific value.

Description

NAVIGATION FOR RAPID ACCELERATION / RAPID BRAKING WARNING OF VEHICLE AND METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for detecting a vehicle state in a navigation device, and more particularly, to a navigation and a method for warning a rapid acceleration / braking of a vehicle suitable for warning a driver of a sudden acceleration or a sudden braking of the vehicle using the navigation device. will be.

In general, a navigation device is connected to a satellite positioning system (GPS) to be installed in a vehicle or carried by a user to find and guide a location of a destination and a way to reach the destination. There is a navigation device for mounting the display device and displaying the same to a user, a GPS receiver connected to the navigation device or provided in the navigation device to receive a GPS signal, and a GPS satellite for transmitting a location signal to a GPS receiver of various navigation devices.

As such, the navigation device may calculate the current location and the moving path, the distance and the speed of the destination by displaying the GPS information, rather than tracking any radio waves, and show the exact location to the user in real time.

In the conventional navigation device operating as described above, the location information from the GPS is received and the current location and speed of the vehicle are received, and the road guidance and the speeding hazard information are provided to the driver. As such, the navigation device may perform various services using current vehicle location and speed information, but has not yet provided other information besides such road guidance and speeding hazard information.

Accordingly, the present invention provides a navigation device and a method for warning rapid acceleration / braking of a vehicle capable of performing a visual or auditory warning to a driver with respect to rapid acceleration and sudden braking of the vehicle.

In another aspect, the present invention, the rapid acceleration / sudden braking of the vehicle that can warn the driver of the acceleration or sudden braking of the vehicle on the basis of the position and the speed information received from the GPS to the driver with a navigation device for the rapid acceleration and sudden braking A navigation device for warning acceleration / braking and a method thereof are provided.

In addition, the present invention, the navigation device determines the rapid acceleration and braking of the vehicle based on the position and speed information received from the GPS, and transmits the determined information to the digital multimedia broadcasting (DMB) broadcasting server The present invention provides a navigation device and a method for warning rapid acceleration / braking of a vehicle capable of transmitting a message including rapid acceleration and sudden braking information from a DMB broadcasting server to a driver's mobile phone.

According to an embodiment of the present invention, a GPS receiver for calculating a current position based on signals received from GPS satellites, a memory storing an electronic map database including map data for each region, and the GPS receiver are provided. The speed of the vehicle is calculated on the basis of the calculated positional time information of the vehicle and displayed on a map drawn from the memory in real time, the speed increase value and the speed decrease value of the vehicle are calculated per preset unit time, and the speed increase value is And a controller configured to determine rapid acceleration when the vehicle speed is greater than the preset vehicle speed increase value and to determine rapid braking when the speed decrease value is greater than the preset vehicle speed decrease value.

According to one embodiment of the present invention, a navigation device including a GPS navigation unit calculates a vehicle speed based on hourly location information received from GPS, and decreases a speed increase value and a speed decrease of the vehicle per unit time. Calculating a value; when the speed increase value is greater than a preset vehicle speed increase value; determining a rapid acceleration; and when the speed decrease value is greater than a preset vehicle speed decrease value, determining a sudden braking. And outputting warning information on the rapid acceleration and sudden braking as a visual or audio element.

In the present invention, the effects obtained by the representative ones of the disclosed inventions will be briefly described as follows.

According to the present invention, by performing a visual or auditory warning to the driver with respect to rapid acceleration and sudden braking of the vehicle, the vehicle loss due to rapid acceleration and sudden braking by the driver can be reduced and fuel can be saved.

Hereinafter, the operating principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

The present invention is to perform a visual or auditory warning to the driver by navigation for the rapid acceleration and braking of the vehicle based on the position and speed information received from the GPS.

In addition, the vehicle may determine whether the vehicle is suddenly accelerated and suddenly braked, and transmits the determined information to the DMB broadcasting server to transmit a message including the rapid acceleration and sudden braking information from the DMB broadcasting server to the driver's mobile phone.

1 is a block diagram showing the structure of a navigation device according to a preferred embodiment of the present invention.

Referring to FIG. 1, the navigation device includes a controller 100, a GPS receiver 102, a display 104, a speaker 106, a memory 108, and a DMB transceiver 110.

The controller 100 controls the overall functions in association with each block of the navigation device and performs location measurement, road guidance service, and speed detection service. In addition, to determine whether the vehicle is rapidly accelerated and suddenly braked, the instantaneous speed increase and decrease of the vehicle is checked. For example, the vehicle speed increase or vehicle speed decrease value is calculated per second, and the rapid acceleration and braking of the vehicle is determined by comparing the vehicle speed increase value with the vehicle speed decrease value. Accordingly, when it is determined that the vehicle is suddenly accelerated and suddenly braked, the driver is alerted through the display unit 104, the speaker 106, and the DMB transceiver 110.

The GPS receiver 102 accurately calculates the current position according to a triangulation method using three different distances by measuring accurate time and distance based on location information provided from three or more GPS satellites, for example. 100) to deliver.

The display unit 104 displays the display data transmitted from the control unit 100 to the driver. In particular, the display unit 104 provides the driver with a warning screen during rapid acceleration and sudden braking. The speaker 106 also outputs sound and voice data transmitted from the controller 100 to the driver, and in particular, provides the driver with a warning sound and a voice during rapid acceleration and sudden braking.

The memory 108 stores an electronic map database including map data for each region, and transmits it to the control unit 100 so that the control unit 100 performs road guidance based on the location information and the electronic map database.

The DMB transceiver 110 receives the terrestrial DMB signal or the satellite DMB signal and enables the TV broadcast listening while moving. The DMB transceiver 110 adds the sum result of the rapid acceleration / braking information generated from the controller 100 and the sum result. It is possible to generate a message including a command to transmit to the mobile phone of the DMB data communication channel and transmit it to the broadcast server.

Accordingly, the broadcast server transmits the received rapid acceleration / braking result message to the portable terminal of the driver through the mobile communication network, so that the driver can immediately recognize his driving habit through the sudden acceleration / braking detected by the navigation device.

On the other hand, in the embodiment of the present invention, but limited to the DMB transceiver 110, CDMA. Sends a rapid acceleration / braking result message to each wireless communication server using a communication method, either a mobile communication method using WCDMA, OFDM, or a wireless Internet method using Wibro, HSDPA, etc. In addition, it is also possible to transmit a rapid acceleration / braking result message from the wireless communication server to the driver's mobile phone through the mobile communication network.

In describing the specific operation procedure of the navigation device, if the location information received through the GPS receiver 102 is transmitted to the controller 100, the controller 100 corresponds to the location information in the electronic map database stored in the memory 108. Search for a map to be outputted to the display unit 104, and when the driver inputs a specific destination from the current location, the control unit 100 calculates the route for the route search information display and voice guidance according to each location. Will perform.

In this case, the navigation device determines whether the vehicle is suddenly accelerated or suddenly braked and displays a warning message about the acceleration or sudden braking through the display unit 104 or warns the driver through the speaker 106. do.

In addition, after the navigation is executed, the number of rapid accelerations / brakings performed by the driver is counted to guide the driver when the navigation ends.

2 is a flowchart illustrating a warning procedure according to rapid acceleration of a vehicle in navigation according to a preferred embodiment of the present invention.

Referring to FIG. 2, when the navigation mode is entered through the power-on of the navigation device and the GPS receiver 102 connected to the GPS satellites in step 200, the GPS receivers 102 each GPS satellite in step 202. The vehicle speed information is calculated based on the time slot position information received from the vehicle, and the vehicle speed information is transmitted to the controller 100.

Thereafter, in step 204, the controller 100 calculates a vehicle speed increase value per preset unit time (for example, 1 second). If the vehicle speed increase value is greater than or equal to the preset rapid acceleration reference value, the controller proceeds to step 208 to visually and audibly alert the driver of the vehicle rapid acceleration. For example, a red screen output may be output through the display unit 104, and at the same time, a voice prompt, “Rapid acceleration may be dangerous” may be provided to the driver through the speaker 106.

Thereafter, in step 210, the control unit 100 increments the count count for each rapid acceleration by 1 and accumulates it for the time when the navigation is executed, and each number is databased by time zone, location, and period in memory 108. Save it to

3 is a flowchart illustrating a warning procedure according to sudden braking of a vehicle in navigation according to a preferred embodiment of the present invention.

Referring to FIG. 3, when the navigation mode is entered through the power-on of the navigation device and the GPS receiver 102 in connection with the GPS satellites in step 300, the GPS receivers 102 each GPS satellite in step 302. The vehicle speed information is calculated based on the time slot position information received from the controller 100, and the vehicle speed information is transmitted to the controller 100.

Thereafter, in step 304, the controller 100 calculates a vehicle speed reduction value per preset unit time (for example, 1 second). When the vehicle speed reduction value is smaller than the preset braking reference value in step 306, the controller 100 returns to step 302 to determine whether to continue braking. If the vehicle speed reduction value is greater than or equal to the preset braking reference value, the controller proceeds to step 308 to visually and aurally warn the driver of the vehicle braking. For example, a red screen output may be output through the display unit 104, and at the same time, a voice guidance may be provided to the driver through the speaker 106, "sudden braking may cause an accident."

Thereafter, in step 310, the control unit 100 increments the count count by 1 for each sudden braking, and accumulates it for the time when the navigation is executed, and the number of times is databased by the time zone, location, and period in the memory 108. Save it.

4A to 4B are flowcharts illustrating a procedure for informing a driver of rapid acceleration / braking information through a navigation device according to an exemplary embodiment of the present invention.

Referring to FIG. 4A, when the navigation guidance service of the navigation is terminated in operation 400, or when the driver terminates the navigation execution, in operation 402, the acceleration / braking count information is notified to the driver through the voice guidance or the display. . That is, by providing the driver with the cumulative number of rapid acceleration / braking of the vehicle generated by the driver during the navigation, the driver can immediately recognize his driving habit.

Referring to FIG. 4B, when the navigation guidance service of the navigation is terminated in step 450 or when the driver finishes navigation, in step 452, the DMB transmission / reception unit 110 transmits the DMB data communication channel to the rapid acceleration / braking count information. In step 454, the broadcast server transmits the rapid acceleration / braking count information to the driver's mobile terminal through the mobile communication network, whereby the driver has a sudden acceleration / braking count information message generated during the navigation. Receive and recognize.

As described above, the present invention performs a visual or audio warning to the driver by navigation for rapid acceleration and sudden braking of the vehicle based on the position and speed information received from the GPS.

On the other hand, in the embodiment of the present invention is shown for the rapid acceleration and sudden braking warning method using the navigation installed in the car, this is not limited to the car, can be mounted on the motorcycle and bike can be implemented through the navigation, of the present invention Of course, many modifications are possible without departing from the scope. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

1 is a block diagram showing the structure of a navigation device according to an embodiment of the present invention;

2 is a flowchart illustrating a warning procedure according to rapid acceleration of a vehicle in navigation according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a warning procedure according to sudden braking of a vehicle in navigation according to a preferred embodiment of the present invention;

4A to 4B are flowcharts illustrating a procedure for informing a driver of rapid acceleration / braking information through a navigation device according to an exemplary embodiment of the present invention.

<Explanation of Signs of Major Parts of Drawings>

100: control unit 102: GPS receiving unit

104: display unit 106: speaker

108: memory 110: DMB transceiver

Claims (10)

A GPS receiver for calculating a current position based on signals received from satellites; A memory for storing an electronic map database including regional map data; Calculating the speed of the vehicle based on the hourly position information of the vehicle calculated from the GPS receiver and displaying it on a map drawn from the memory in real time, calculating a speed increase value and a speed decrease value of the vehicle per predetermined unit time; If the speed increase value is greater than the preset vehicle speed increase value, it is determined that the rapid acceleration, and if the speed decrease value is greater than the preset vehicle speed decrease value, the control unit is determined to be sudden braking Navigation device for warning the rapid acceleration / sudden braking of a vehicle comprising a. The method of claim 1, The device, A display unit for displaying warning information on the rapid acceleration and sudden braking transmitted from the controller Navigation device for warning the rapid acceleration / sudden braking of the vehicle further comprises. The method of claim 1, The device, Speaker for outputting warning information about sudden acceleration and sudden braking transmitted from the controller in sound and voice Navigation device for warning the rapid acceleration / sudden braking of the vehicle further comprises. The method according to any one of claims 1 to 3, The control unit, While the navigation is running, the rapid acceleration and the number of rapid braking times are respectively counted and summed, and at the end of the navigation, the summed acceleration and sudden braking times information is transmitted to the display unit or the speaker. Navigation device to warn of rapid acceleration / braking. The method of claim 4, wherein The control unit, Navigation device for warning the rapid acceleration / sudden braking of the vehicle characterized in that the database stored in the memory for each time zone, location, period and the sum of the rapid acceleration and sudden braking information. The method of claim 4, wherein The device, Receiving the summed rapid acceleration and rapid braking frequency information from the controller, A DMB transmission / reception unit configured to transmit the sum of the rapid acceleration and the rapid braking frequency information and the DMB broadcasting server to the DMB broadcasting server including a message instructing the driver to transmit the rapid acceleration and the rapid braking frequency information to the driver's portable terminal; Navigation device for warning the rapid acceleration / sudden braking of the vehicle further comprising. Calculating a speed of the vehicle based on the hourly position information received from the GPS in a navigation device including a GPS receiver, and calculating a speed increase value and a speed decrease value of the vehicle per unit time; Determining the speed increase when the speed increase value is greater than a preset vehicle speed increase value; Determining that the speed reduction value is greater than a preset vehicle speed reduction value, as a sudden braking; The process of outputting the warning information on the rapid acceleration and sudden braking as a visual or audio element How to warn the rapid acceleration / sudden braking of the vehicle using a navigation. The method of claim 7, wherein The method, Counting and summing the rapid acceleration and the number of rapid braking times, respectively, while the navigation is executed; At the end of the navigation execution, displaying the sum of the rapid acceleration and the braking frequency or outputting the voice; How to warn of rapid acceleration / sudden braking of the vehicle using a navigation comprising a. The method of claim 8, The method, A process of storing the summed up acceleration and sudden braking information in a database according to time zones, locations and periods and storing them in a memory How to warn of rapid acceleration / sudden braking of the vehicle using a navigation comprising a. The method of claim 8, The method, At the end of the execution of the navigation, transmitting the sum of the rapid acceleration and the rapid braking frequency information from the DMB transmission / reception unit mounted in the navigation device to the DMB broadcasting server; Transmitting a command message to the DMB broadcasting server to transmit the sum of the rapid acceleration and the rapid braking frequency information to the portable terminal of the driver by the DMB transceiver; How to warn the rapid acceleration / sudden braking of the vehicle using a navigation.

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