KR20010000756A - Geographical Information System by the GPS Data - Google Patents

Abstract

PURPOSE: A geographical information guide unit using a GPS receiver is provided to report information about an approaching location to a user approaching a specific point. CONSTITUTION: A geographical information guide unit using a GPS receiver comprises the following structure. User's current location coordinate values and location coordinate values of specific points stored in a memory device are obtained by using a GPS receiver. The obtained user's current location coordinate values are compared with the location coordinate values of specific points stored in the memory device. An approaching location of the user is obtained by the compared result.

Description

Geographical Information System using GPS receiver {Geographical Information System by the GPS Data}

The present invention aims to implement a system for guiding essential information regarding safe driving such as hiking trails, appointment places, traffic accidents, frost freezing points, sudden curve points, and the like.

Conventionally, traffic guide markers have been installed as a preliminary guidance method for these branches. On the other hand, there is a vehicle navigation system using GSP, but this is a device whose main purpose is to combine and represent the current position of the vehicle and the map data by GPS reception information by storing image information of about 1/5000 on a CD-ROM. It is composed of expensive and complicated configurations such as GPS receiver, CPU, color LCD and CD-ROM drive. In addition, there was a lack of specific and clear alarms for accident incidents and habitual freezing points.

In the present invention, by carrying a small device with a built-in GPS receiver and a voice and a bell, the user can easily achieve the above-mentioned objectives and enable low-cost production, thereby making it possible to spread the device, prevent accidents, and comply with traffic safety regulations. I was done.

The technical problem to be achieved by the present invention is the user's current position reading technology, alarm point database construction technology, alarm command technology and the like.

In order to read the current position of the user, the data correction method by the gyro sensor is prepared in order to extract the longitude and latitude coordinate values by GPS, GPS error and error correction.

To construct the alarm point database, 8bit CPU and nonvolatile memory are used to store the coordinates of the longitude and latitude of the alarm point at all times.In order to update the data, the storage command switch and communication port attached to the device How to use it,

In order to issue an alarm, the method using voice speaker, alarm bell and LED lamp is applied.

1 is a view showing a geographic information guide system of an embodiment of the present invention

2 is a diagram illustrating a logic of alerting according to an embodiment of the present invention.

3 is a view showing memory of a specific point coordinate value in one embodiment of the present invention;

4 is a diagram showing an example data format of an alarm point coordinate value according to an embodiment of the present invention;

<Explanation of symbols for main parts of drawing>

1. Antenna 2. GSP Receiver

3.Microprocessor (CPU) 4.Flash Memory

5.Speaker 6.Bell

7.LED lamp 8.Gyro sensor

9. Voice synthesizer 10. Communication port

11.Save command switch

The present invention has a configuration as shown in Figs. 1 and 2 as a means for automatically notifying the user that the user is approaching a specific boundary point.

The GPS receiver 2 is a device that collects geographic coordinate information (longitude, latitude) of the user's current location.

Gyro sensor (8) is a device that provides auxiliary information for minimizing the GPS receiving error, geographic information error range.

The CPU 3 is a device that logically combines the current position coordinate values input from the GPS receiver 2 and the gyro sensor 8 with the alarm point coordinate values stored in the nonvolatile memory 4.

The nonvolatile memory 4 stores coordinate values and data attributes of an alarm point and stores new input data values when data update by the current coordinate value storage command switch 11 and the communication port 10 occurs. to be.

The communication port 10 is an external data input / output device of the system.

The voice synthesizer 9 is a device for generating various voice guides commanded by the CPU 3.

The alarm bell 6 and the LED lamp 7 are alarm command assistance devices other than the voice synthesizer 9.

The storage command switch 11 is a device for forcibly storing the current position coordinate value received by the GPS in the nonvolatile memory 4.

The actual operation of the apparatus will be described by taking the logic flow diagram of FIG. 2 as an example.

I. When the power is turned on, after initializing various devices such as the CPU 3 and the GPS receiver 2, the CPU 3 receives the GPS reception information and the user's movement information by the gyro sensor 8. Refer to and perform the exact coordinate calculation for the current position every time.

II. At the same time, should the CPU 2 call the data value of the boundary points close to the operation result value from the nonvolatile memory 4 to issue an alarm? Determine whether or not logic.

III. If it is determined that the user is gradually approaching the expected boundary point, an alarm is issued by means of the voice speaker 5, the bell 6, the LED lamp 7, and the like. After several alarms, return to the operation of I.

For example, the operation of the user storing the current location in the device will be described by using the logic flow diagram of FIG. 3.

IV. The CPU 3 performs a coordinate value (longitude and latitude) calculation on the current position with reference to the GPS reception information each time.

V. When the current position value save command is inputted from the external switch 11, the result value of section IV is stored in the nonvolatile memory 4. It then returns to the operation of paragraph I.

By the above method, the user can be automatically notified of the approach alarm about the alarm target point such as hiking trail, appointment place, accident occurrence point, habitual freezing point, intersection, etc., and the user can prevent accidents and traffic by performing safe operation according to the proximity alarm. You will be able to do your best in compliance with the law.

Existing traffic safety signs for road traffic safety are not effective enough for sunlight reflection, nighttime, rainy weather, and fog driving. In addition, due to the uniformity of the alarm method has a disadvantage that does not give a strong alarm to the driver. On the other hand, there is a car navigation device (Car Naviavigator) using a GPS receiver as an alternative method, but because of the fixed data of the CD-ROM, it is difficult to update new data, it requires a decisive cost such as expensive installation cost .

The present invention consists of only the GPS receiver, CPU, and memory, so that the configuration of the device is simple, the new command value for the alarm point can be additionally input by using the storage command switch, the communication port, and the like. Have In addition, it has the characteristic of performing active and specific notification such as voice alarm and alarm bell.

In the above described preferred embodiments of the present invention based on the accompanying drawings, it should be understood that various modifications and variations are possible within the scope of the appended claims by those skilled in the art.

Claims (4)

A geographic information guidance device using a GPS receiver that compares a current position coordinate value of a user acquired using a GPS receiver with position coordinate values of specific points stored in a memory device and notifies that the user is approaching a specific point. According to claim 1, Geographic information guide device using a GPS receiver characterized in that the function of representing the separation distance, the direction information between the current position and a specific point on the screen. The geographic information guidance device using a GPS receiver according to claim 1, wherein the memory device for storing the position coordinate value of the specific point is formed of a nonvolatile memory or a CD-ROM. The geographic information guidance device using a GPS receiver according to claim 1, wherein a function of storing a current position coordinate value acquired through the GPS receiver in a storage device in the device by an external command is provided.