KR20000044691A - Method for searching position in vehicle navigation system - Google Patents

Abstract

The present invention relates to a position search method of a vehicle navigation system, and more particularly, to a position search method of a vehicle navigation system that can minimize the remote control operation when performing a position query.

The position retrieval method of the present invention comprises the steps of: at the time of position retrieval, setting one condition among an address, a facility and a registered position; Inputting a consonant of a position to be searched under the set condition; Searching for information corresponding to the input consonant; And selecting a desired position from the retrieved information.

Description

Location Search Method of Vehicle Navigation System

The present invention relates to a position search method of a vehicle navigation system, and more particularly, to a position search method of a vehicle navigation system that can minimize the remote control operation when performing a position query.

A vehicle navigation system is a device that helps to safely drive a vehicle to its destination by identifying the current location and final destination of the vehicle. Such a vehicle navigation system serves as a basic function to alleviate the burden on a human driving a vehicle. This basic function is expressed by detecting the position of the vehicle and displaying it on a map. Therefore, the range of movement by the car, the contents of the road, etc. should be extensive, and the place where the road density is high is quite high. In consideration of such a situation, the system is constructed based on the combination of independent navigation / movement trajectory and map.

Such car navigation has a short history, but the possibilities are infinitely large, so it is not only important to display the map and the location of the vehicle, but also the operability of "easy to use" and the visibility of "easy to see." Location accuracy of "vehicle position is correct", various functions of "do several things at the same time", system performance of "fast and reliable", communication function of "receive information from outside" and other "on vehicle" "Easy to install." Human human and automotive human interfaces must be considered.

Recently, developed countries have been researching and developing more advanced navigation, such as real-time communication between automobiles and road traffic centers, for information agencies and companies. In particular, cutting-edge technologies used in aircraft or military use, such as car navigation system to prevent accidents in advance by interlocking with the vehicle's safety system, or interfacing with an audio visual device or car alarm mounted on the vehicle, Now, it is a trend that has been applied to automobiles.

1 is a block diagram showing hardware of a general vehicle navigation system.

The vehicle navigation system can be broadly classified into a GPS receiver 1 for positioning a vehicle, a gyro sensor 3 for measuring a direction, a distance sensor (not shown) for measuring a distance, and various information. Processing display device 5 for displaying, CD-ROM driver 7 for driving digital maps, Beacon receiver (not shown) for receiving information from the outside, and interface circuits 11 and navigation functions of all devices. Navigation computer 13, CD-Map 15 containing a digital map, and the like. And a remote controller 9 for inputting user specified information.

The following describes a position search process required to register a specific position in a conventional vehicle navigation system.

2 is an operation flowchart for the position search of the vehicle navigation system according to the prior art.

When the vehicle navigation system is activated, the entire menu is displayed on the TFT LCD 5 under the control of the navigation computer 13. The user selects the location memo function from the entire menu displayed on the LCD 5 (step 100).

The location memo function is a function performed when a user wants to register a specific location. For example, this is performed when a location of "My Home" is to be registered as a speed dial, or when a location of "Destination" to be visited is to be registered to a speed dial. Therefore, the location memo function is very popular in the vehicle navigation system.

The selection of the position memo function is performed by moving a highlight indicating that the cursor is moved on the position memo function by using the direction key of the remote controller 9, and selecting the position memo function by pressing the input key or the confirm key. When the location memo function is selected on the remote controller 9, a specific code set according to the location memo function is transmitted to the navigation computer 13 through the interface 11. The navigation computer 13 checks which function the input code is set to recognize that the location memo function is selected.

When the position memo is selected in the 100th step, the position memo window 102 as shown in FIG. 2 is opened in the TFT LCD 5.

When the location memo window 102 is opened, the user selects a search method for searching for a location to be registered by the user using the remote controller 9. In the search method, one of an address (step 104), a facility (step 106), and a registration location (step 108) is selected. If the user knows the address of the location he wants to register, he selects the address (step 104), and if the information is already registered, the user selects the registration location (step 108). In addition, if a feature of the facility is recognized, such as region or related industry, the facility search step (step 106) is selected.

In any case, the user selects a search step according to the knowledge he / she knows in the location memo window 102, and the selection of the search step is also performed by the key selection using the remote controller 9.

If the user wants to perform a search by address, the user places a highlight on the address indicating the movement of the cursor by using the Shanghai Dong key of the remote controller 9, and presses the input key or the confirm key to perform the address search step. (Step 104).

When the address search step in step 104 is selected, the risk of "hours" is first displayed on the TFT LCD 5 (step 110). When the list of "hours" is displayed, the user moves and selects the highlight on the desired "hours" position using the remote controller 9 (step 112).

If the desired "hour" in step 112 is selected, then a list of all "phrases" included in the selected "hour" is displayed on the TFT LCD 5 (step 114). In the displayed list of " spheres ", the user uses the remote controller 9 to move the highlight to the position of the desired " sphere " and select (step 116).

If the desired " sphere " by step 116 is selected, then the risk of all " copper " contained in the selected " sphere " is displayed on the TFT LCD 5 (step 118). The user then uses the remote controller 9 to move the highlight to the desired "dong" position in the displayed list of "dong" and select it (step 120).

That is, when the user selects "address" as a search step, the conventional location search method sequentially selects "hour", then selects "old", and selects "east". It had to be done.

Similarly, if the user wishes to perform a search step according to the facility, the highlighting indicating the movement of the cursor by the Shanghai Dong key of the remote controller 9 is placed on the "facilities", and the facility search step is executed by pressing an input key or the confirm key. (Step 106).

When the facility search step according to step 106 is to be performed, the preset search step is sequentially performed as in the aforementioned address search step.

For example, if the facility search step is divided into seven steps as set in the list of B, and the facility to be found is included in the last seventh step, the first facility search step list to the sixth facility search step list The search process for the facility to be visited becomes too complicated because the final seventh facility search step list is performed only after all are performed.

In addition, in each search step, the user must perform the operation of the remote controller 9 to perform the next search step, and these points include a very dangerous element in view of the process of driving the vehicle.

Therefore, the location search method in the conventional vehicle navigation system has a disadvantage in that it does not need to be unnecessarily selected because it proceeds sequentially according to a preset menu. Therefore, since the number of setting steps requiring the user's remote control is increased, it takes a lot of time and at the same time has a problem of providing a hassle to the operation of the vehicle.

That is, the present invention intends to improve the operability of "convenient to use" so that the vehicle navigation system can raise the level in simply displaying a map and displaying the position of the own vehicle.

Accordingly, an object of the present invention is to provide a location search method for minimizing a remote control operation when performing a location search of a vehicle navigation system.

1 is a hardware configuration diagram of a general vehicle navigation system,

2 is an operation flowchart for the position search of the vehicle navigation system according to the prior art,

3 is an operation flowchart for the position search of the vehicle navigation system according to the present invention.

Explanation of symbols on the main parts of the drawings

1: GPS receiver 3: Gyro sensor

5: display device 7: CD-ROM driver

9: remote control 11: interface

13: navigation computer 15: CD-Map

The position search method of the vehicle navigation system according to the present invention for achieving the above object comprises the steps of: at the time of position search, setting one condition among an address, a facility, a registered position; Inputting a consonant of a position to be searched under the set condition; Searching for information corresponding to the input consonant; And selecting a desired position from the retrieved information.

The present invention first selects the location note function. Second, select the desired search task among the addresses, facilities, and registered locations included in the location memo function. Third, when selecting a search by address or facility, input only the consonant of the address or facility to be searched using the consonant input key. Display the same address or facility as the fourth selected consonant sequence.

Hereinafter, with reference to the accompanying drawings will be described in detail the position search method of the vehicle navigation system according to the present invention.

The hardware configuration of the vehicle navigation system is as shown in FIG. The vehicle navigation system includes a GPS receiver (1) for positioning a vehicle, a gyro sensor (3) for measuring a direction, a distance sensor (not shown) for measuring a distance, and a display device for displaying various information. (5), a CD-ROM driver 7 for driving digital maps, a Beacon receiver (not shown) for receiving information from the outside, and a navigation computer for processing the interface circuits 11 and navigation functions of all devices ( 13), a CD-Map 15 containing a digital map, and the like. And a remote controller 9 for inputting user specified information.

Each of these components operates with its own function. In the gyro sensor 3, one or two direction sensors are used in combination with a distance sensor. The most popular gyro sensor to date is a vibrating gyro or Yaw rate sensor. The gyro sensor 3 determines the position of the host vehicle in combination with a distance sensor (not shown), such as in a tunnel, underground, or under a bridge where the GPS receiver 1 does not operate.

Although not shown in FIG. 1, the distance sensor assists in determining the position of the host vehicle by combining with the aforementioned gyro sensor 3 and is also used for engine control or shift control in a vehicle. Therefore, a wheel sensor and a speed sensor are used.

The GPS receiver 1 is a position sensor for receiving an electric wave transmitted from a Global Positioning System (GPS) and positioning an absolute position of the host vehicle. The GPS receiver 1 is composed of a GPS antenna and a receiver and is interfaced with a serial communication other than the navigation computer 13. Provides information on the position, direction, time and navigation of the vehicle.

The display device 5 plays an important role since information is directly transmitted to a person. Initially, CRT was mainly used, but STN and TFT LCD are mainly used due to automobile environment and quality problems such as mounting space. TFT LCD, in particular, maintains picture quality on the order of CRT and is used in approximately 4.5 inch and 6 inch screen sizes.

The CD-ROM driver 7 is used to store map information of the navigation system because of its large storage capacity and ease of use. In particular, the CD-ROM driver 7 requires an error compensation circuit, an anti-noise measurement, and a floating structure to avoid vibration. In general, in order to reduce errors in high-speed data transmission, it is configured integrally with a navigation computer with a CPU, and data transmission with them is about 3 Mbps.

Next, the Beacon receiver (not shown) receives location information, traffic conditions and other useful information from a signpost installed on the road and provides the driver with information such as a detour road and parking lot use to the destination. The Beacon receiver is designed to transmit / receive a signal for a short time when the vehicle passes by about 10m and a signpost installed at intervals of 2 to 5 km.

The navigation computer 13 has a circuit configuration similar to that of a personal computer, and includes a ROM, a RAM, a decoder circuit, an I / O circuit, a graphic generator, and the like, centered on a CPU. Application software is built to control and process data like the human brain. In general, the navigation computer 13 is responsible for positioning the vehicle, displaying a map and the vehicle position on the display device 5, inputting signals from the sensors 1 and 3, inputting data from the CD-ROM driver 7, and communicating from the outside. It also has functions such as route guidance.

The following describes a position search process required to register a specific position in the vehicle navigation system of the present invention.

3 is an operation process diagram for position search of the vehicle navigation system according to the present invention.

When the vehicle navigation system is activated, the navigation computer 13 displays the entire menu of the vehicle navigation system on the TFT LCD 5. The user selects the location memo function from the entire menu displayed on the LCD 5 (step 200).

The location memo function selected in step 200 is a function performed when the user wants to register a specific location. For example, this is performed when the location of "my house" is to be registered to any speed dial, or when the location of "destination" to be visited is to be registered to any speed dial. Therefore, the location memo function can be said to be very frequently used in the vehicle navigation system.

The selection of the location memo function in step 200 is performed by placing the highlight on the location memo function in the entire menu using the direction keys of the remote controller 9 and pressing the input key or the confirmation key. The highlight is an indication for the selection of a function while clearly showing the movement of the cursor on the screen to the user. Therefore, when one of the various selections is made, the highlight is placed on the desired function, and when the input key or the confirmation key is selected, the function of the portion where the highlight is located is selected.

When the location memo function is selected through the remote controller 9, a specific code set according to the location memo function is transmitted to the navigation computer 13 through the interface 11. The navigation computer 13 checks which function the input code is set to recognize that the location memo function is selected.

When the location memo is selected in the 200th step, the location memo window 202 as shown in FIG. 2 is opened in the TFT LCD 5.

When the location memo window 202 is opened, the user selects a search method for searching for a location to be registered by the user using the remote controller 9. In the search method, one of an address (step 204), a facility (step 206), and a registration location (step 208) is selected. If the user knows the address of the location he wants to register, the user selects the address (step 204), and if the information is already registered, the user selects the registration location (step 208). In addition, if the feature of the facility is recognized, such as region, related industries, etc., the facility search step (step 206) is selected.

In any case, the user selects a search step according to the knowledge he / she knows in the location note window 202. The selection of the search step is also performed by key selection using the remote controller 9.

If the user wants to perform the search by address, the user places the highlight on the address by using the Shanghai Dong key of the remote controller 9 and performs the address search step by pressing the input key or the confirm key (S204). step).

If the address search step of step 204 is selected, the navigation computer 13 first displays on the TFT LCD 5 a list of all "city" of the corresponding area (step 210). When the list of "hours" is displayed, the user moves and highlights the highlight on the desired "hour" position using the remote controller 9 (step 212).

After the specific "poem" is selected in step 212, the navigation computer 13 outputs a message for inputting the consonants of the beginning of the "dong" to which the building to be visited belongs. The user enters “” or “ㄷ” when the location to be found is included in “Daechi-dong”, and enters “” or “ㅇ” if the location is included in “Geo-dong” (step 214).

That is, step 214 is to input only the first part of an arbitrary letter in order to solve a very troublesome point when all Korean characters including consonants and vowels or consonants, vowels, and consonants are input using the remote controller. Of course, in this case, it is a case of "Hangul", so a message for inputting "consonants" is output. In the case of "English" it would be possible to print a message asking you to enter the first alphabet or up to a third alphabet.

Therefore, when "Seoul" is selected in step 212 and when the user inputs "c" in step 214, the list of all "dongs" included in "Seoul" and starts with "c" is the TFT LCD 5 Will be displayed on the screen. For example, Daechi-dong, Daelim-dong, Daebang-dong ... are displayed.

In addition, when "Seoul" is selected in step 212, when the user inputs "c." In step 214, it is included in "Seoul", the first letter starts with "c", and the second letter is "vo". A list of all "dongs" beginning with will be displayed on the TFT LCD 5. For example, Daechi-dong, Duncheon-dong, Deungchon-dong, ..... are displayed.

That is, in step 214 of inputting a desired consonant consonant, it is possible to set the number of consonants input by the adjusted program. Thus, the user inputs one consonant or two consonants as instructed by the navigation computer. Here, inputting consonants means selecting a key to which each consonant is set.

When the desired consonant consonant is input in step 214, and a list of all "dongs" meeting the conditions of step 214 is displayed on the TFT LCD 5, the user selects the desired copper from among them (first Step 216).

Thereafter, the map for "dong" selected by step 216 is unfolded on the TFT LCD 5. That is, the navigation computer 13 retrieves the "dong" finally selected by the user from the CD-Map 15 via the CD-ROM driver 7, and the specific area called as such is displayed on the LCD 5. In the area, the user directly finds a location to register and registers the location.

The registered location is stored as an arbitrary speed dial, and when the desired registered location is selected from the registered location (step 208), the location can be immediately recognized without performing a search operation.

That is, in the present invention, by using the method of inputting a desired "dong" consonant in the search operation using the address (step 204), the number of user operations is significantly reduced as compared with the conventional method.

Similarly, when the user performs a search operation by the facility in the location memo window 202 (step 206), the navigation computer 13 outputs a message for inputting the consonants of the facility to be visited. The user inputs the desired consonants of the desired facilities by operation of the remote controller 9 as in the address search operation (step 218), and the navigation computer 13 meets the conditions of the step 218 in all the registered facilities. The list of facilities to be output is output to the TFT LCD 5.

When the user selects a specific facility from the list of the displayed facilities, a map of the region where the specific facility is selected is read from the CD-Map 15 and displayed. In the area, the user directly finds a location to register and registers the location.

The registered location is stored as an arbitrary speed dial, and when the desired registered location is selected from the registered location (step 208), the location can be immediately recognized without performing a search operation.

That is, the present invention significantly reduces the progress step by using a method of inputting consonants of "dong" or "facilities" which want the menu selection step that has been sequentially performed in the prior art. In addition, the location of the facility can be searched if the name of the facility is known without knowing the area to which the facility is located.

Therefore, the present invention has the advantage that the operation time can be reduced while minimizing the user's cumbersome operation to a minimum, and the convenience in use can be provided. In particular, since the vehicle navigation system of the present invention is often used during the operation of the vehicle, the vehicle navigation system of the present invention can bring a great effect in minimizing the inconvenience that the user can drive the vehicle by minimizing the operation.

Claims (1)

At the time of location search, setting one condition among an address, a facility, and a registered location; Inputting a consonant of a position to be searched under the set condition; Searching for information corresponding to the input consonant; And a step of selecting a desired position from the retrieved information.