KR920008716B1 - Warning method with sound signal for motor car - Google Patents

Abstract

A sound sythesizing alarm device for an automobile consists of a central processing unit (110), buffers (130)(140) which transmit signals from each sensors to the central processing unit, a sound memory (170) containing functional sound signals, a data selector (210) which divides the sound data compressed in AD PCM type into upper four bits and lower four bits, an A/D transformer (180) which synthesizes sound signals from the sound memory into digital sound signals and transforms them into analog signals, a low path filter (190) formed with an arithmatic amplifier filtering the analog signals, and a low voltage sound amplifier (160) which amplifies enough the signals filtered and outputs through a speaker.

Description

Voice synthesis integrated warning method and device for automobile

1 is a connection diagram of the control device and peripheral sensors and switches of the present invention.

2 is a block diagram of the internal clock of the control device of the present invention.

3 is a detailed view of the inside of the control device of the present invention.

4 is a characteristic of the seat belt warning function of the present invention.

5 is a characteristic of the taillight warning function of the present invention.

6 is a characteristic view of the door opening warning function of the present invention.

7 is a characteristic of the parking brake warning function of the present invention.

8 is a fuel shortage warning feature of the present invention.

9 is a characteristic characteristic of the ignition key warning function of the present invention.

10 is a characteristic view of the battery discharge warning function of the present invention.

11 is a characteristic of the speed warning function of the present invention.

12 is a characteristic of the overheat warning function of the present invention.

13 is a message repeating function characteristic diagram of the present invention.

14 is a failure test function characteristic diagram of the present invention.

15 is a representation of the performance of the present invention.

16 is a flowchart of a prioritization decision of the present invention.

* Explanation of symbols for the main parts of the drawings

100: control unit 110: central processing unit

120: constant voltage circuit 130, 140: buffer

150: operational amplifier 160: low voltage voice amplifier

170: voice memory device 180: D / A converter

190: low pass filter 200: speaker

210: data selector 220: interface and input

The present invention relates to a warning method and a warning device for detecting a situation caused by passive or active factors while driving a vehicle and notifying the driver. More particularly, the present invention relates to an appropriate voice to a driver using a voice synthesizer. The present invention relates to a method and apparatus for integrated voice synthesis warning for a vehicle that provides safety and convenience to a driver by promptly identifying a vehicle and a driver's own condition. A driver driving a vehicle should always check the overall condition of the vehicle, such as running out of fuel, running out of fuel, opening the car door, not wearing seat belts, cooling water, and various indicator lights. Currently, a warning light or indicator light is used on the dashboard of the car to alert the driver of the condition of the vehicle, and a warning or audible alarm can be used for the safety or important functions of the car using a chime or buzzer. At the same time warning. However, if there are many safety and important functions of such a vehicle, it is difficult to identify what the warning is because the acoustic tone is monotonous if the acoustic warning means is simply used. When using acoustic warning means of tone, it is disadvantageous in terms of installation, workability and cost for each means. In addition, when multiple functions operate on the same visual warning means, the warning means distracts the driver's attention and may cause adverse effects. In particular, if you are a novice driver, you may not know what the warning lights and indicators on the instrument cluster mean or how to follow up in response to warning means. In order to solve this problem, various types of automotive voice warning devices have been developed.

An example of such a voice warning device is described in Korean Patent Publication No. 90-6092 and Korean Utility Model Publication No. 90-8130.

The technical contents of the above-mentioned patent publication No. 90-6092 are inputted by a sensor signal of a vehicle to determine whether there is an abnormal state of a specific part, and a control for controlling a driving state display unit which informs a system operating state when an abnormal state is detected. Means, a means for controlling a switch driving unit for selecting a speech synthesis signal and an audio signal of a car audio system and providing the same to a speaker, and providing the speech synthesis circuit with information corresponding to the data determined by the signal discriminating means. And a synthesizing circuit control means for causing the synthesizing circuit to read and synthesize specific data of the speech synthesis memory.

In addition, the technical information of the Utility Model Publication No. 90-8130, a sensor for detecting the state signal of the vehicle, a control unit for receiving the control of the channel signal according to the corresponding channel signal, according to the output of the control unit A voice synthesis memory unit for generating an audio signal, a D / A converter for converting the data signal of the voice synthesis memory unit into an analog signal, an amplifier for amplifying the output signal of the D / A converter, and a dips It is composed of a password setting unit and an external number operation unit for setting a password to the position.

The conventional automotive speech synthesis application is configured to perform the speech synthesis as well as the address of the speech memory in the speech synthesis integrated circuit (IC), so that the address bus and the data bus are separated. In the case of such bus separation, the capacity is limited because the number of address buses is determined, and in the case of capacity expansion if necessary, more complicated control circuit configuration and control in the central processing unit (CPU) are required.

In addition, when DRAM is used as a memory device as a voice synthesis memory, since the information stored in the DRAM is erased when the battery is discharged or the battery is replaced, it is necessary to always use a separate power supply means such as a battery. Other examples of the above voice warning device are described in Japanese Patent Laid-Open No. 61-30940 and Japanese Patent Laid-Open No. 63-44097.

The above-described technique of No. 61-30940 aims at safety by controlling the vehicle load facility according to the voice signal generated for the control of the vehicle. The apparatus for recognizing the voice signal generated for the control and the pronunciation of the recognized language And a display device having a display element corresponding to each of the recognized languages, and a control device for controlling the load facility of the vehicle according to the voice recognition result.

The technical contents of the above-described sub-63-44097 relate to a command control apparatus using an audio signal of a vehicle, comprising a storage unit for discriminating the audio signal, determining an operation direction according to the same, and switching the operation of the vehicle apparatus to another direction. And a switching means and a stopping means for stopping the operation of the vehicle apparatus whose operation direction has been changed by the switching means after a predetermined time from the sound command.

The Japanese voice control technology for automobiles is similar to the voice recognition technology similar to the voice synthesis technology of the car. The voice synthesis technology detects all driving conditions of the car and informs the driver by voice. Belongs to the technology of commanding the operation of the device by voice rather than by switch type.

Examples of acoustic warning devices similar to the voice warning devices are shown in US Pat. Nos. 3,855,574, 3,909,842, 4.492,952, and 4,038,634.

The description of No. 3,855,574 relates to a warning device operated by voice, and the description of No. 3,909,842 relates to an audible warning device for the occurrence of an abnormality in a vehicle, and the description of No. 4, 492,952 describes various detection sensors. It is a technology that informs the driving status of the vehicle through the voice alarm system by the technology, and the description of the above-mentioned 4,038,634 is detected in the initial stage of failure of each part of the automobile to warn the vehicle failure warning system that can prevent the development of a large failure. Technology.

However, such technical information is a technology that warns the overall state of the vehicle using a monotonous voice, and its tone is so simple that it is difficult to identify what the warning is.

As described above, the environmental conditions in a car are bad conditions such as high temperature, high humidity, vibration, dust, and internal and external interference, so the more complicated the system becomes, the more likely it is to malfunction and the price, weight, size, etc. are relatively high. It is disadvantageous. In addition, most of them have poor technical descriptions on the number of warnings and warning lengths, and when the audio speaker device is used as a speaker of the voice synthesis device, the audio output is cut off when the voice alarm is generated. Even if there is a limit on the number of warnings, there is no action for the case that the driver was not recognized or misrecognized due to the carelessness of the driver. In addition, the warning lights of the current instrument panel also has a function to check the bulb (BULB) bar, because there is no way to check when the check fails, it may cause a risk of large accidents.

In addition, if the door is opened while giving priority to when several functions occur at the same time, for example, low fuel warning while driving, the risk is further increased because there is no priority warning device that gives the door open warning priority. do.

The present invention has been made to solve the above-mentioned conventional problems, the object of the present invention is to alert the driving state and measures of the vehicle using a voice synthesizer to improve the safety and convenience of the driver, anyone The present invention provides a method and apparatus for sound synthesis integrated warning for a vehicle having a high function and high reliability that can easily and safely determine the state of a vehicle.

In order to realize the above object of the present invention, according to the present invention, there is provided a sensor detecting means for indicating various operating states of a vehicle, a central processing unit for receiving and processing a signal from a switch detecting means, and a signal from each sensing means. A plurality of buffers to be transmitted to the processing unit, a ROM voice storage unit using the data bus and the address bus in common by the central processing unit, and storing voice signals for each function, and voice compressed by the AD PCM method. A data selector for dividing data into upper and lower four bits, an AD converter for converting an analog signal by synthesizing the voice data output from the voice storage device into a digital voice signal, and filtering the analog signal converted by the converter. A low pass filter composed of an operational amplifier and amplified sufficiently to output the filtered signal to the speaker A warning device consisting of a low noise amplifier that is provided.

Further, priority setting means for processing according to a preset priority among warning functions by various detection means indicating the operation state of the vehicle, failure test means for diagnosing failure of each function among the warning functions by the detection means, and each Repeat warning means for repeating the voice message warning for each function as many as a set number of times, and warning cancel means for canceling all functions at once except for special functions (lighting warning function, start key confirmation warning function) among each warning function. It features a warning method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is an external wiring diagram of the control device of the present invention, FIG. 2 is an internal clock configuration diagram of the control device of the present invention, and FIG. 3 is a detailed configuration diagram of the control device of the present invention.

Terminal (1) of the control device 100 is a power input terminal of the battery 20 of the device and is used as a power source by making a 12 volt battery voltage into a constant voltage of 5 volts in the constant voltage circuit 120 through the fuse 22. do.

Terminal (2) of the control device 100 is that the ignition switch 31 is connected to the battery 20 through the fuse 23, the ignition switch 31 is connected in the on or start position, in this case The battery 20 power is input to the terminal 1A2 of the buffer 130 through the zener diode ZD2 through the interface D3 and the resistor R4 of the input terminal 22. Therefore, the level of the terminal 1A2 of the buffer 130 becomes high at the on or start position of the ignition switch 31.

Terminal (3) of the control device 100 is connected to the key in switch 32 through the battery 20 and the fuse 24, the key 32 is connected to the ignition key set In this case, the battery 20 is input to the terminal 1A3 of the buffer 130 through the zener diode ZD3 through the diode D4 and the resistor R6. Accordingly, the level of the terminal 1A3 of the buffer 130 becomes high when the switch 32 is turned on when a key is inserted into the ignition key set. Terminal (4) of the control device 100 is connected to the fuel sensor 25, the fuel sensor 25 detects that there is little fuel in the fuel tank, the fuel sensor ( The resistance value of 25 decreases to a low level, and the low level signal is input to the terminal 2A1 of the buffer 130 through the diode D6.

Terminal (5) of the control device 100 is a temperature sensor 26 is connected, the temperature sensor 26 is a sensor for detecting when the engine overheating is expected because the water temperature of the radiator is higher than a certain level When this increases, the operational amplifier 150 is operated to input a high level signal to the terminal 2A2 of the buffer 130.

Terminal (6) of the control device 100 is connected to the reed switch 33 which is a speed sensor, the reed switch 33 is a terminal of the central processing unit 110 is sensed the speed of the currently running vehicle Input to (To), the central processing unit 110 always monitors the vehicle speed.

Terminal (7) of the control device 100 is a ground terminal of the device, and terminals (8) and (9) are speaker 200 connection terminals for outputting audio signals.

Terminals (10) to (14) of the control device 100 are terminals for detecting the state of various switches, and each terminal 10-14 according to the on / off operation of the switch 34-40. ) Is in a low / high impedance state and this signal is input to terminals 1A1-2A1 of buffer 140.

In the switches 34-40, the switches 34-36 are front and rear passenger door side switches, the switch 37 is a taillight switch, and the switch 38 is a parking brake switch.

The switch 39 is a seat belt switch, and the switch 40 is a driver side switch.

The terminal 15 of the control device 100 repeats the voice alarm when the driver outputs the voice alarm by satisfying the voice alarm condition by the logic in which the state of the vehicle is determined but the driver does not fully recognize it. Connected to the signal, the signal of the rapid switch 41 is input to the terminal 2A2 of the buffer 140. Terminal (16) of the control device 100 is connected to the disconnect switch 42 for turning off all functions except for special functions (key reminder, tail lamp left " ON " function, etc.) when the device is temporarily unnecessary. The cutoff switch 42 is input to the terminal 2A3 of the buffer 140.

Terminal (17) of the control device 100 is connected to a test switch 43 for checking the presence or failure of the device immediately before or while the vehicle is running, and the signal of the test switch 43 is connected to the buffer ( It is input to the terminal 2A4 of 140. Terminal 18 of the control device 100 is connected to the terminal 50 attached to the generator by operating the alternator attached to the engine when the engine is operating, the low voltage is output to the terminal 50 The central processing unit 110 detects the low voltage of the terminal 50 to determine whether the engine is operating.

That is, the terminal 50 signal is input to the terminal 1A4 of the buffer 130 through the zener diode ZD4 through the diode D5 and the resistor R8.

Terminal (19) of the control device (100) is connected to an accessory (Acc) switch 44 to which the key position of the ignition key set is connected, and the signal of the accessory switch 44 is a battery 20 power supply diode It is input to the terminal 1A1 of the buffer 130 through the zener diode ZD1 through the D2 and the resistor R2. Thus, the terminal 1A1 level of the buffer 130 remains high when the key position is at Acc.

When the signals sensed by the switches and sensors for each function configured as described above are input to the central processing unit 110 and satisfy the conditions by the respective timing charts (described later), the voice messages corresponding to the functions are stored in the voice storage device. Called at 170, the voice is synthesized by the voice synthesizer 180 and then amplified by the low voltage voice amplifier 160 through the low pass filter 190, and then output to the speaker 200 a predetermined number of times.

When two or more functions are generated at the same time, they are outputted alternately the number of times (described later) and have priority.

Hereinafter, operations of each function will be described with reference to FIGS. 4 through 14. 4 is a characteristic diagram of the warning function of the seat belt warning function. In the on / off waveform of the ignition switch 31 such as the waveform, the audio signal output waveform according to the on (non-wearing) or off (wearing) operation of the seat belt switch 40 is the same as the (63) waveform. .

In the output waveform 63, T1 is a message once output time, T2 is 0.5 ± 0.1 seconds, T3 is T3 = (T1 × 2) + T2, and T4 is not greater than T3.

5 is the taillight warning function diagram. Taillight is on. Please confirm ＂voice message warning operation characteristic. In the on / off waveform of the ignition switch 31 and the accessory switch 44 such as the waveform, the output of the tail light switch 37 is the same as the waveform of (65), and the output waveform of the driver side door switch 40 is ( 66) is the same as the waveform, and the resulting audio output waveform is the same as the (67) waveform.

The door to be operated on by the output waveform 66 of the driver side door switch 40 is in an open state and the door is closed when in an off operation.

In the output waveform 67, T1 and T2 are the same as the output waveform 63 condition of FIG. 4, T3 is T3 = (T1 x 20) + (T2 x 19), and T4 is not greater than T3. 6 is a door opening warning function diagram. Please close it. In the on / off waveform of the ignition switch 31 and the accessory switch 44, such as the waveform, the output of the door switches 36-34 and 40 is the same as the waveform of (69), where the state of the door is The open state is off and the door is closed. And, the output waveform of the reed switch 33 according to the speed of the vehicle is the same as the waveform (70), V1 and V2 is V1 5 km / h, V2 <5 km / h. The resulting message output waveform is equal to the (71) waveform, where T1 and T2 are equal to the output waveform 63 condition, T3 is a continuous time and T4 is not greater than T3.

7 shows the parking brake warning function. The parking brake is locked. Please release the voice message warning operation characteristic. In the on / off waveform of the ignition switch 31 and the accessory switch 44 such as the waveform, the waveform of the parking brake switch 38 is the same as the waveform of (73), where the on state is the state in which the parking brake is locked. OFF state is the parking brake is released.

And, the output waveform of the reed switch 33 according to the speed of the vehicle is the same as the waveform (74), V1 and V2 is V1 5 km / h, V2 <5 km / h. Accordingly, the message output waveform is the same as the (75) waveform, and T1-T4 is the same as the condition of FIG. 8 is a characteristic of low fuel warning function. Refill fuel '. In the on / off waveform of the ignition switch 31, such as the waveform (76), the sensing waveform of the fuel sensor 25 is the same as the (77) waveform, and the message output waveform accordingly is the same as the (78) waveform. Where T1 and T2 are equal to (63) waveform conditions, T3 is T3 = (T1 × 2) + T2, T4 is T4 = T3 + (30 ± 5) seconds, T5 is continuous time and T6 is not greater than T5 It's time.

9 shows the ignition key warning function. The ignition key is not removed. Please confirm ＂voice message warning operation characteristic. Reference numeral 79 denotes a waveform of the switch 32, which is a key, in the on / off waveforms of the ignition switch 31 and the accessory switch 44, such as a waveform. And the off state is the key is pulled out. And, the driver side door switch 40 is the same as the (81) waveform, where the on state is the door is open and the off state is the door is closed.

The resulting message output waveform is equal to (82) waveform, T1 and T2 equal to (63) waveform condition, T3 is continuous time and T4 is not greater than T3.

10 is a battery discharge warning characteristic chart. Please check the charging system. In the on / off waveforms of the ignition switch 31 and the accessory switch 44, such as the waveform, the generator terminal 50 voltage waveform is equal to the (84) waveform, where V3 and V4 are V3. 8 volts, V4 <8 volts.

The resulting message output waveform is the same as the (85) waveform.

The T1-T4 condition is the same as the time condition in FIG.

The above battery discharge warning function is not activated at the initial stage of engine start and is operated when the engine is in a sufficient running state. Fig. 11 is a characteristic diagram of the speed warning function when driving a car. Please slow down for safety '. In the on / off waveform of the ignition switch 31, such as the waveform, the velocity sensing waveform of the reed switch 33 is equal to the waveform of (87), where V5 and V6 are V6. 120 km / h, V6 <120 km / h.

The resulting message output waveform is the same as the (88) waveform. The T1-T4 condition is the same as the time condition in FIG.

Fig. 12 is a characteristic diagram of an overheat warning function of an engine. The engine is overheated. In the on / off waveform of the ignition switch 31 such as the waveform (89), the detection waveform of the temperature sensor 26 is equal to the (90) waveform, where the resistance values of RT1 and RT2 are RT1. 21 ± 2 ohms, RT2 <21 ± 2 ohms.

The resulting message output waveform is the same as the (91) waveform, and the T1-T4 condition is the same as the time condition in FIG.

13 is a characteristic diagram of the voice warning message repeating function, in which the detection waveform of the repeat switch 41 is the same as the (93) waveform in the on / off waveform of the ignition switch 31 such as the (92) waveform, and the audio output accordingly. The waveform is the same as the (94) waveform.

Here, T1 is the one time output time of the previously output message, T2 is T2 = 0.5 ± 0.1 seconds, T3 is T3 = (T1 × 2) + T2, T4 is not greater than T3, and T5 is T5 = 0.5 ± It has a time of 0.1 seconds or more.

14 is a test function characteristic diagram for checking the apparatus of the present invention, wherein the detection waveform of the test switch 43 is equal to the (96) waveform in the on / off waveform of the ignition switch 31 such as the (95) waveform, Accordingly, the test function output waveform is the same as the (97) waveform.

Here, T1 is one output time of one voice message, T2 is T2 = 1 ± 0.2 seconds, T3, the time for outputting all the messages in the above order, T4 is not greater than T3, and T5 is T5 = A time value of 0.5 ± 0.1 seconds or more.

In addition, there is a cancel function, which is operated by a cutoff switch 42, which stops all functions except for the lamp warning function (figure 5) and the ignited warning function (figure 9). Let's do it.

As shown in Fig. 15, the required performance for performing the above functions is in the range of DC 9V-16V, the operating temperature range of -30 °-+ 80 °, and the storage temperature range of- It is a range of 40 degrees-+85 '.

The three ranges should be free from operational problems with the full-function wiring. In addition, the test voltage is 14 ± 0.5V, the maximum humidity is 95%, the reverse breakdown voltage -16V, the dark current is 3mA or less.

The dark current is a current value at the ignition switch 31 off. In addition, the insulation resistance is 500Ml or more, which is 500V mega, which is the resistance value between the case and each terminal of the device, and the voltage drop is 0.5V or less when the speaker is externally mounted, and the voice level is 60-70dB at a measurement distance of 20cm. The peak value of the amplification degree was measured, and the durability by each function has 200,000 times or more.

In the device of the present invention having such a function, when the driver turns on the ignition key 31, a warning is output when the fuel is insufficient and the seat belt is not worn.

Among the various warning functions described above, functions having priority are given, which is a function of warning first in order of priority for safety.

This will be described in more detail with reference to FIG. 16.

Priority function is performed by the control device 100 in the order of priority to the safety of the vehicle operation, the ranking is set in advance by the internal program control. When the priority function is performed, it is determined whether the first abnormal state has occurred in the signal detected by the various sensors in the initial step 301, and if the abnormality has not occurred, the step 302 In step 305, if an abnormality occurs, the first abnormal state is output as a voice signal once, and then a signal of the next sensor is detected in step 305.

The signal sensed in step 305 becomes a second abnormal state detection signal, and it is determined in step 306 whether this second abnormal state has occurred.

If the second abnormal state determined in the step 306 does not occur, the first abnormal state is output again as a voice signal, and if the second abnormal state occurs, the first abnormal state occurs in the step 308. The priority of the abnormal state detection signal and the second abnormal state detection signal is determined.

If the priority of the second abnormal state signal is lower than that of the first abnormal state signal among the priorities determined in the step 308, that is, if the first abnormal state signal is a priority, the first abnormal state signal may be determined in step 309. Outputs a voice signal corresponding to an abnormal state, and if the second abnormal state signal has a higher priority than the first abnormal state signal, that is, if the second abnormal state signal has priority, After outputting a voice signal corresponding to the abnormal state signal of the, whether the second signal is in the normal state is determined in step 311, if it is not the normal state and returns to the step 310, if the normal state is the first In step 312, it is determined whether or not the abnormal state is continued, and if not, the process returns to the step 302. If the process continues, the first voice signal is continuously output in the step 314.

On the other hand, after outputting the first audio signal in step 309, it is determined in step 313 whether the first abnormal state is continuous and if not continued, the process returns to step 302, In step 314, a first audio signal is output.

In the above priority determination, for example, assuming that the first abnormal state is the parking brake warning function and the second abnormal state is the door opening warning function, when the two warning functions occur at the same time, the door opening warning function is performed. In view of the risk, the door opening warning function is issued first, and when the action is completed, the parking brake warning function is continuously generated.

The signals generated by the various sensors and switches are detected by the terminals P10-P17 and the terminals P20-P27 of the central processing unit 110 of FIG. 3, wherein the terminals of the central processing unit 110 are detected. DB0 brings terminals 1G and 2G of buffers 130 and 140 low, which is accomplished by the operation of the data bus. The signal sensed by the central processing unit 110 is decoded so that the operation of each function is performed as shown in FIGS. 4 to 14, and the voice corresponding thereto is stored in the voice storage unit 170. If an address is designated as the voice data, that is, the terminal is specified through the terminals P10-P17, P20-P27, and DB1 of the central processing unit 110, the voice data corresponding to the address is read. At this time, the terminal DB0 of the central processing unit 110 goes high and the terminal DB2 goes low driving the terminal OE of the voice memory device 170. Then, the voice data is input to the data selector 210 through the data terminals D0-D7 of the voice memory device 170, and 8-bit data is inputted to the central processing unit by the adaptive differential pulse code modulation (AD PCM) method. In synchronization with the signals of the terminals DB5 and DB6 of 110, the signal is separated into upper 4 bits and lower 4 bits, and then input to the A / D converter 180 which is a speech synthesizer.

Here, the terminal DB5 and DB6 signals of the central processing unit 110 trigger the terminal KA and the KB of the data selector 210, and the input of the A / D converter 180 is the terminal Q0. 4 bits are inputted through -Q3).

The A / D converter 180 synthesizes the 4-bit voice data, converts the digital signal into an analog signal, and then uses a Butter Worth low pass using the operational amplifier 150 through the output terminal DA. The low voltage voice amplifier 160 is input through the filter 190.

The amplifier 160 amplifies the input signal sufficiently to be output through the speaker 200.

After this process, the central processing unit 110 reads another input signal according to the above logic and outputs a corresponding message, and repeats the message for each function as shown in FIGS. 4 to 14. Repeat the message as many times as you want.

In addition, in the case of a function having the above-mentioned priority, even if a function having a low priority is being warned, the highest priority is warned first, and after the action for the highest priority is completed, the function of the low priority is repeatedly warned.

As described in detail above, the present invention is effective in preventing accidents by the driver easily grasping the state of the vehicle and taking follow-up actions regardless of whether the vehicle is stopped or running, and even if a plurality of states occur at the same time. As the voice warning is output, the driver can concentrate and concentrate on driving.

In addition, the repeat switch function, the cancel switch function, and the test switch function for diagnosing the failure of the device are further enhanced, and the microprocessor by software program control controls the overall system operation. The system has been streamlined, which greatly improves reliability, size reduction, cost savings and weight savings. In addition, the memory device is designed to use a ROM device instead of a RAM to prevent battery discharge or replacement, and to facilitate the functional operation by using an address bus and a data bus that operate various warning functions in common.

Claims (4)

A central processing unit (110) for receiving and processing signals from sensor sensing means and switch sensing means for indicating various operating states of a vehicle, and buffers (130, 140) for transmitting signals of the respective sensing means to the central processing apparatus; In addition, the central processing unit uses a data bus and an address bus in common, and includes a voice memory device 170 containing a voice signal for each function, and voice data compressed by the AD PCM method. A data selector 210 for separating bits into bits, an A / D converter 180 for synthesizing the voice data output from the voice memory device into a digital voice signal and converting it into an analog signal, and filtering the analog signal converted by the converter A low pass filter 190 configured as an operational amplifier and a low voltage voice amplifier 160 that sufficiently amplifies the filtered signal and outputs it to a speaker. Car speech synthesis integrated warning devices for that feature. Priority setting means for processing according to the priority of the warning function by the sensor detection means and switch detection means for indicating the operation state of the vehicle, fault test means for diagnosing the failure of each function of the warning function by the detection means; An integrated voice synthesis warning method for a vehicle comprising a repeating warning means for repeating a voice message warning for each function by a set number of times, and an alarm canceling means for canceling all functions at one time except for a special function of each warning function. The method of claim 2, wherein the priority setting means detects a signal from each sensing means (302) to determine a first abnormal state (303) and a first voice according to the determining step (303). Outputting a signal (304), detecting a signal of a next sensing means (305) to determine a second abnormal state, and outputting (307) or outputting the first audio signal according to the determining step; The first and second abnormal state signals are determined (308) and the first audio signal is output (309) or the second audio signal (310) according to the determination step 308 and then the first And determining (311) (313) whether or not the second abnormal state is normal and outputting (314) the first audio signal or continuing the first abnormal state according to the steps (311, 313). Step 312 and determining the speech synthesis integrated warning method for a vehicle, characterized in that to determine the priority. The method according to claim 2, wherein the special functions which are not canceled among the warning canceling means are a tail light warning function and a start key confirmation warning function.