JPS5876768A - Vehicle speed announcing apparatus - Google Patents

Abstract

PURPOSE:To enable the announcing of detailed vehicle speed when the vehicle speed changes significantly by emitting a sound of vehicle speed synthesized reading out a phonemic piece corresponding to the vehicle speed areas divided coarsely or closely according to changes in the vehicle speed. CONSTITUTION:A vehicle speed or the like immediately after the veicle speed changes slowly is announced by voice at each fixed time according to the setting of an announcing mode switch 23, at a variable time or a random time according to the vehicle speed or so as to vary the vehicle speed range divided at a coarse pitch memorized in an ROM9 of a microcomputer 6. On the other hand, when the vehicle speed changes sharply by acceleration or deceleration, an interrupt command is applied to a terminal 26 of a computer 6 through a vehicle speed change detecting means 28a to read out a vehicle speed range divided at a close pitch from the ROM9 according to the vehicle speed. Thus, a corresponding phonemic piece is read out from an ROM11 each time the vehicle speed range varies and a significantly changed vehicle speed is announced by voice with a voice synthesizing means 12, a speaker 22 and the like.

Description

[Detailed Description of the Invention] This invention relates to a vehicle speed reporting device that communicates the vehicle speed of an automobile with audio, and in particular, changes the vehicle speed reporting mode to a fixed time mode and 3...# intervals depending on the 4L speed. The present invention aims to provide a vehicle speed reporting device that is equipped with a new vehicle speed reporting mode in addition to the vehicle speed reporting mode and the like.

If you are driving at high speed or on a crowded road, looking at the speedometer even for a moment can be a sign of distracted driving. From such Ancho, Honkushimoto first reported the vehicle speed by voice.
The LF alarm system was proposed in ``Special Advisor No. 100887, 1987''. The vehicle speed reporting device that we launched earlier has vehicle speed reporting modes: a fixed time interval mode, a speed monitoring mode that shortens the reporting interval in proportion to the vehicle speed, and a sleep prevention mode that randomizes the reporting interval. We are proposing an example of a configuration that allows you to select. Each of these notification modes has its advantages and disadvantages, and it is hard to say which mode is better.If one is too strong, in the vehicle speed dependent mode, the notification time interval becomes shorter in proportion to the vehicle speed, and the notification sound is reduced. It is possible that some users find it noisy. Therefore, it is desirable to use various reporting modes depending on various situations and user preferences.

The object of the present invention is to provide a vehicle speed/LO reporting device that can select a JJT standard reporting mode in addition to these reporting modes.

In this invention, a vehicle speed region storage means is provided for storing a plurality of vehicle speed regions divided in advance by a coarse pitch and a number of vehicle speed regions divided by a regular pitch, and when running a fixed material, the vehicle speed is set at a coarse pitch. Each time you change the vehicle speed range divided by This is a book that allows you to use voice commands to set the vehicle speed.

Therefore, according to the notification mode according to the present invention, the number of notifications is limited during steady driving, and it is possible to prevent the notification sound from becoming false. If there is a large change in vehicle speed, @ can report the change in detail, and if necessary, the koji can be removed from the warehouse.

A practical example of the present invention will be explained in detail below using the drawings.

FIG. 1 shows an embodiment of the invention. In the figure, 1 indicates a vehicle speed sensor. The vehicle speed sensor 1 can be configured with, for example, a + stage that converts a single rotational speed into a pulse @ the number of drums. Therefore, in this example, it is assumed that the vehicle speed sensor 1 outputs a pulse number H 2 that waits for a number of revolutions proportional to the vehicle speed. This pulse number is input to AI) Henshin Masu 3, and AD Henshin Masu 3
, the vehicle speed information is changed/stopped from AD at regular intervals and inputted to the first input boat 4. In this example, the ADf meter 3 counts the output pulses 2 of the sensor 11 by using a pulse counter for a predetermined period of time determined by the pulse counter, and converts the output of the counter into a binary code.
It can handle parallel digital signals in decimal codes. Vehicle speed data input to the input boat 4 is input to the microcomputer 6 via the pass line 5. As is generally well known, the microcomputer 6 includes a central processing unit 7, a random access memory (hereinafter referred to as AM) 8, and a read-only memory (hereinafter referred to as OM) 9 that stores programs. Then, according to the program stored in the ROM 9, the central system *7 operates to convert the vehicle speed data into an audio signal and emit the sound.

To emit vehicle speed data as voice, a voice synthesis ROM II and a voice synthesizer 12 are required in addition to the microcomputer 6.
and is provided. The speech synthesis ROMJ1 stores in advance parameters for the percentage of speech to be emitted. Example I''
t1.2.3...The music piece corresponding to 9 and 10
．． Each voice feature parameter of the f segment corresponding to 20.30...90, 100°200 is determined.

The vehicle speed data input to the first input boat 4 is temporarily stored in the RAM.
8 and is processed according to the program stored in the ROM 9 and decoded into data for the 100th, 10th, and 1st places.

The 300th, 10th, and 1st data determine the address of the voice synthesis ROMII, and read out the % fine parameter of the voice stored at the address from 1 (OMll).

The voice feature parameters of the 100th, 10th, and 1st place are sequentially transferred to the input latch circuit of the fF synthesizer 12 via the central processing unit f)V7, and are voice synthesized in the synthesizer 12. The synthesized encoded signal (digital code) resulting from speech synthesis is sequentially output to the output latch circuit 12b, and sequentially transferred from the output latch circuit 12b to the output port 13 via the central processing unit 7, and from the output port 13 to the DA
It is output to converter J4. The DA transformer 4 converts the composite encoded signal (digital code) into an analog M signal and supplies it to the tone 'S' training circuit 15.

The sound deafness tile adjustment circuit 15 is a signal path 1 that provides a certain amount of attenuation.
5a and a variable attenuation line 15b whose attenuation amount can be set to an arbitrary value using a potentiometer 16.
Separate into 5a and 15b and use multiplexer 1 with the output
7, the signal passing through either one of the yarn paths can be selected.

In this implementation +++, the audio for vehicle speed broadcast is variable damping system 15.
Suppose that multiplexer ]7 is controlled so that b is taken out. The output of the multiplexer [7] is supplied to a low-pass filter 18, and the synthesized code output from the speech synthesizer 12 in a time-division manner is divided into 1! ! The signal is smoothed and output as a continuous T voice signal, and supplied to amplifying unit #22 consisting of a partial amplifier [9] and a speaker 21, and 'fFs' is emitted from the speaker [2]. Therefore, when driving in single speed or at 125 km/h, the sound of hiyaku, nijiu, and gurgle is emitted. In addition to the voice representing this qLM, “
It is also possible to add words such as "The current distance is 125 km" and make it emit a sound.

Here, the switch 23 is a switch for switching the medium mode of the vehicle speed broadcasting-IT-F. Mode changeover switch 23
For example, there are five switching contacts a, b, c, and d.

For example, a contact point A" (for example, a contact point A") is set to a fixed time reporting mode that reports at intervals of a certain period of time, for example, 5 seconds, and a contact point A is set to a fixed time reporting mode that reports for a fixed period of time, e.g., at intervals of 5 seconds. The second fixed period of time for notification is set to the PII axis mode, and the contact point C
In this case, the vehicle speed-dependent notification mode is set according to the vehicle speed. For example, as shown in FIG. 2, it is possible to program the reporting interval Y to become shorter as the vehicle speed X increases. Contact point d is set to sleep prevention mode and report 1'!
In this mode, for example, by changing the voice pitch period mantissa of the voice synthesizer]2, it is possible to create wt to be solid phase with different voices. The pushbutton 24 is a pushbutton switch for manually giving the ``Tsu@J'' command.

This signal is applied to the interrupt terminal 26 of the microcomputer 6 through the chattering removal circuit 25. A switching signal from the changeover switch 23 is input to the microcomputer through an input port 27.

In this invention, for example, 5 Km as shown in Box 3
/ Set a speed area that meets the coarse pitch of H interval and the dense pitch of 2KII/), and memorize the area of +X number of 4 cars with the coarse and fine pitch. This vehicle speed memory means can use, for example, a part of the storage area of R (J M 9).When the mode selector switch 23 is switched to the contact e, this rough vehicle speed area In other words, it is searched to which vehicle speed range the vehicle speed data input from the vehicle speed sensor 1 and converted into digital code by the AD conversion a3 belongs.

During steady rectangular travel, this search is performed in the vehicle speed range that follows the original pitch. This search is performed by using the arithmetic function of the microcomputer 6 to check the vehicle speed range stored in the ρROM 9 that determines the fc pitch.

Once the vehicle speed range is determined, it is compared with the previous vehicle speed range to determine whether there has been a change from the previous first speed range.

If the result of this determination is that there is a change, the phoneme segment stored in +<OM]1 is selected based on the vehicle speed data, and the phoneme segment is sent to the speech synthesizer 12 as 9P to report the vehicle speed area after the change. For example, as shown in the four points in Figure 3, 606/
For example, if the speed exceeds 60Kt/H, a message such as ``Rokujutsukiro no hei'' is reported, and if the speed decreases by 60Kt/H as shown at point B, a message such as ``Rokujutsukiro low'' is reported.

In this way, by reporting the vehicle speed only when the cascade changes the predetermined vehicle speed range, the necessary data is reported when necessary, and the driver does not feel uncomfortable.

This invention is configured so that a notification is given when the nail is stretched at a constant speed for a certain amount of time or more. For example, the third
After 5 minutes from point B in the diagram, the microcomputer 6
A timer function provided in the vehicle detects that the required time has elapsed at the 0 point, and the output of this timer reports the current vehicle speed. For example, make a report such as "Itsutei Gojuu Gokiro Hai".

In this manner, when the vehicle is traveling at a constant speed, the vehicle speed range is reported in the -time mode, so the driver does not feel uneasy.

In this invention, vehicle speed change detection means 28a is provided to detect a large change in kK vehicle speed.

This detection means can utilize, for example, an acceleration sensor that detects acceleration and deceleration by opening and closing a switch based on the inertia of a weight. When the vehicle speed change detection means 28a detects a large change in vehicle speed, the detection signal is supplied to the input port 31 through the signal processing circuit 29 and read into the microcomputer 6. Signal processing circuit 2
9, when a vehicle speed change signal is input from the vehicle speed change detection means 28a, an interrupt signal is generated, this interrupt signal is given to the interrupt command terminal 26, and this interrupt command and input port 3
The brightness mode in the vehicle speed area is changed according to the speed 1 read from 1. In other words, the reading mode of the vehicle speed region storage means is changed, a vehicle speed region with a dense pitch is read out, and the vehicle speed region with a dense pitch is compared with the input vehicle speed data.
Every time the input data crosses the vehicle speed range of the pitch, f elements are output at intervals of, for example, 2 Km/H, which are synthesized into speech and output.

Therefore, when the brake or accelerator is operated and the vehicle speed changes significantly, the change in vehicle speed is reported moment by moment and the driver is asked to respond, so the driver can obtain as much information as he or she needs. .

As mentioned above, the means for searching which vehicle speed region the input vehicle speed value corresponds to is a component of the present invention, and the vehicle speed region in which the vehicle speed is divided at a coarse pitch in the vehicle speed region storage means is changed. Jff: When the first region change detection means and the vehicle speed change detection means 28a detect that the change in vehicle speed exceeds a predetermined value, the vehicle speed is determined to be at the pitch VB stored in the vehicle speed robustness storage means. The second area change detection detects that the divided single iA'@ area has been changed, and the first
Means for retrieving from the i-leaf storage means the number of consecutive months corresponding to the changed vehicle speed region when the vehicle speed has changed in each region by the detection means in the ten-stage region change storage region and the second region change. is constituted by a microcomputer 6, and each of the above-mentioned operations is executed according to a flowchart as shown in FIG.

Further, in the above description, the vehicle speed change detection means 28a is an acceleration/deceleration sensor that uses the inertia of a weight, but changes in vehicle speed can also be detected using signals from the brake switch 28b and the accelerator switch 28C. Sho 28
For example, d indicates a water temperature sensor, 28e indicates a collision prevention sensor, etc., and shows a case where abnormality is detected by these sensors and the occurrence of the abnormality is notified by voice.

As described above, according to the present invention, the mode changeover switch 2
By switching contact point 3 to contact e, the vehicle speed will not be reported excessively during steady driving, and one mountain report can be prevented from becoming four tones. Moreover, since it provides detailed vehicle speed information when accelerating or decelerating, the driver can obtain the necessary amount of vehicle speed when needed, and the easy-to-use vehicle speed front axle device w
You can play with them. You can also select other kojibo modes if necessary and it weighs 18g! It is advantageous.

In the above description, l(0M9 and '# voice synthesis ROMII were explained as separate entities, but this ROM9 and 11
It is possible to make it into a single I<OM. Further, the microcomputer 6, ROM 11, and speech synthesizer can be integrated into one chip. Also, in the above it-like g
When inserted between the 1 circuit 15, the multiplexer 17, the temporary DA converter 14, and the low-pass filter J8,
It can also be inserted between the low-pass filter 18 and the p-expansion device 22.

The public address system F#22 used can be the low frequency circuit of a conventionally used car radio or the output circuit of a car stereo. In that case, a single or four notification sound is emitted at the same time as the radio broadcast or the car stereo, and
The sound represented and the sound of the radio or stereo are separately t t 1
It would be nice if it could be configured so that it can be adjusted in 4 ways.

[Brief explanation of the drawing]

Figure 7A1 is a block diagram showing the first example of this invention, Figures 2 and W; Figure 3 is a graph for explaining the jnj f'F-, and Figure 4 is for detailed explanation of this invention. This is a flowchart. 1: Vehicle speed sensor, 3: AD converter, 6: Microcomputer, 12: Voice synthesis means, 14: 1) A converter,
22: P expansion mold, 23: Mode changeover switch. Patent amount - people chair! Automatic East Co., Ltd. Agent Grass #J! t mean

Claims (1)

[Claims] (1) A vehicle speed sensor that converts the vehicle speed into an electrical signal, an At) transformer that converts an analog signal corresponding to the vehicle speed into a digital signal, and a voice synthesizer that stores the f cumulative value necessary to synthesize the vehicle speed value into voice. means, vehicle speed region storage means for storing a plurality of vehicle speed regions divided at a predetermined coarse pitch and a plurality of vehicle speed regions divided at a fine pitch; and a vehicle speed outputted from the ΔD converter. a search means for searching to which region of the vehicle speed region the value corresponds; and a first region change history detecting means for detecting that the vehicle speed has changed the vehicle speed region divided by the original pitch of the vehicle speed region storage means. and means for detecting that the vehicle speed has exceeded a predetermined value, and when the vehicle speed change detection means detects that the negative change in vehicle speed has exceeded the predetermined value, the vehicle speed is stored in the vehicle speed area storage means. A second method detects that the vehicle speed region divided by the memorized dense pitch has been hidden.
When the vehicle speed change detection means, the first region f history detection means and the second region change detection means detect that the vehicle speed has changed or each region has been changed, a rotation piece corresponding to the speed concession region after the change is detected. a means for increasing the number of phonemes from the upper le phoneme unit memory stage, a voice synthesis means for synthesizing a Qf voice with the retrieved if segment, and a DA conversion for converting the voice T# information outputted from the voice synthesis means into DA. A vehicle speed notification puller L consisting of a device and a P amplification device that emits the DA variation value as audio.