KR100231553B1 - Voice recording and guidance method of driving guidance device of vehicles - Google Patents

Abstract

The present invention relates to a voice recording and guidance method of the vehicle navigation system, and in particular, by providing a service guide for the voice guidance for the current position and the forward direction of the vehicle by encoding each word when the service request is combined to guide each word In order to reproduce the voice, a sentence for notifying the vehicle's forward driving situation is a step of dividing and recording each word, which is the minimum unit, and an encoding step of encoding each of the sentences divided by words (S2). And a memory process (S3) for storing speech for each encoded word, a key input signal search process (S4) for determining the presence or absence of a voice service request input signal from the function key unit 40, and the key input signal search process ( In the case of the voice service request in S4), in the decoding process S5 and the decoding process S5, the data stored in the memory unit 30 is decoded for each word. Characterized in that it consists of a voice output process (S6) for combining the decoded words and output in units of sentences.

Description

Voice recording and guidance method of vehicle navigation system

1 is a block diagram for realizing a general voice recording and guidance function.

2 is a flowchart diagram for implementing the present invention.

* Explanation of symbols for main parts of the drawings

10: voice recording unit 20: encoder

30: memory section 40: function key section

50: decoder

The present invention relates to a voice recording and guidance method of the vehicle navigation system, and in particular, by providing a service guide for the voice guidance for the current position and the forward direction of the vehicle by encoding each word when the service request is combined to guide each word This is to reproduce the voice.

In general, voice waveforms are produced by sound generated from voiced or unvoiced sources by resonance from the vocal cords, radiation from the lips and nostrils, and are made to be as faithful to the original sound as possible by digitizing and reproducing complex voice signals. For this purpose, a speech coding method has been proposed.

According to the method as described above, the configuration of attempting to voice record and reproduce the current position of the vehicle which has been linked with the vehicle navigation is generally shown in FIG. 1. First, a recording unit 10 for recording voice of voice, an encoder 20 for encoding the voice recorded in the recording unit 10 into a digital signal according to a predetermined code method, and a memory unit for storing the coded sentence from the encoder. 30, a function key unit 40 having a selection means for receiving a service coded and stored in the memory unit 30, and a decoder 50 for decoding the encoded sentence by the selected key of the function key unit 40. It is composed of a) and the speaker (SP) to the driver to service the current position of the vehicle or the road or the situation of the main building with voice.

This voice guidance should be a road map for displaying the current location of the vehicle on the map data, and it should be natural that the navigation system for sensing the movement of the vehicle to display the movement path on the road map.

In other words, the vehicle navigation apparatus must be provided in order to voice the driving position according to the movement of the vehicle, and the vehicle navigation apparatus and the voice guidance apparatus must be opened to enable the voice service to the driver.

Accordingly, the conventional voice recording and voice guidance method for guiding a driving route of a vehicle by voice under the assumption that the vehicle navigation apparatus is provided, first encodes a separate input group of the voice recorded in a sentence unit and stores the memory ( When a service request is received after storing in a ROM) chip, the voice guide sentence is decoded according to the input group encoded by the sentence unit for the current vehicle position and the forward course, that is, the vehicle's current position, thereby serving the driver.

For example, the voice service guidance method used for vehicle navigation is to encode the sentence to be serviced, that is, turn right next time, then turn left, gas station soon, parking lot, etc. Encoded in units and stored in the memory chip, the service announcement for the forward course of the current vehicle position is performed.

However, as described above, when encoding in one sentence unit, many words in various service announcements overlap, which takes up unnecessary memory capacity. Especially, since voice data has a much larger data size than applications using general algorithms. The current development and commercialization of the memory chip capacity, which changes frequently in the capacity of the memory chip, makes it difficult to accommodate all voice service sentences for each environment in front of the vehicle. At the very least, this is inherent in the problem of price increases, and besides these problems, there are other technical limitations that must overcome the limitations of memory capacity.

The present invention has been made to solve such a problem, in order to avoid duplication of these sentences in consideration of the fact that many parts of the special service guide information sentences are coded by dividing one sentence by word and combining these encoded words It is an object of the present invention to provide a voice recording and guidance method of a vehicle navigation apparatus capable of maximizing the capacity of a memory chip according to overlapping guide words by serving guide voice to a driver.

Another object of the present invention is to provide a voice recording and guiding method of a vehicle navigation apparatus which enables a variety of voice services even in a small memory chip by compressing a voice having a larger data size as compared to a general algorithm program.

This purpose can be achieved by encoding the guide voice to be serviced word by word, which is a word-by-word encoding process for recording words and encoding them and storing them in a memory chip, and in the case of a voice service request, combining the current driving direction of the vehicle by code. It can be achieved through the sentence decoding process to output by sentence unit.

According to the guide voice recording and reproducing method, the guide voice data can be efficiently stored in a limited memory chip capacity and the memory capacity can be maximized to provide a large amount of guide voice data to the user, as well as various guides to a small memory chip. There is an advantage in price because it can store voice.

Subsequently, the attached drawings of the preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2 as follows.

FIG. 1 is a block diagram for recording and encoding a voice and reproducing the same. As shown in FIG. 1, the description of the voice recording and reproducing method of the present invention will be described with reference to the flowchart of FIG. .

2 is a flowchart for realizing the voice recording and reproducing method of the present invention. The process of dividing and recording a sentence for notifying the vehicle's forward situation by word as the minimum unit (S1) and dividing by word An encoding process (S2) for encoding a sentence, a memory process (S3) for storing speech for each encoded word, and a key input signal retrieval process for determining the presence or absence of an audio service request input signal from the function key unit (40). In the S4 and the key input signal retrieval process S4, if there is a voice service request, a decryption process S5 for decoding data stored in the memory unit word by word and the decrypted word in the decryption process S5 Is composed of a voice output process (S6) for outputting in units of sentences.

The present invention, which provides voice guidance through this process, stores various voice information such as the distance from the current location of the main public building in front of the road situation in the current direction or the direction of the vehicle to the target, and connects it with the navigation device to the driver. It can be serviced, especially in the above situation, many words are duplicated.

For example, next, turn right, turn left, which means that almost all words can be memorized by encoding and storing words that can be duplicated according to road conditions, such as gas stations, parking lots, targets, and meters.

You can also combine these words and provide them to the driver, for example, "Turn next turn right", "To the next target parking lot ... meters." Will be.

Only one embodiment for describing the present invention described above, and may be possible by separating the word and the search separately to use more advanced sentences.

As described above, the present invention provides a method of encoding the words or surveys of North and North, and combining them to reproduce them in one sentence, thereby storing voice data having a large data size in one memory chip. It is possible to maximize the use capacity, thus providing not only various voices, but also the use of a small amount of memory, thereby reducing the price.

Claims (1)

In a method of recording and reproducing a voice in a memory chip, a sentence for notifying a forward road situation of a vehicle is divided into words, which are the minimum units, and recorded (S1), and encoding for each of the sentences divided by words is encoded. A process S2, a memory process S3 for storing speech for each encoded word, a key input signal retrieval process S4 for determining the presence or absence of a voice service request input signal from the function key unit 40, and the key; When there is a voice service request in the input signal retrieval process S4, the decoding process S5 for decoding data stored in the memory unit 30 word by word and the words decoded in the decoding process S5 are combined in sentence units. Voice recording and guidance method of the vehicle navigation system, characterized in that consisting of the output voice output process (S6).