JPS5876767A - Vehicle speed announcing apparatus - Google Patents

Abstract

PURPOSE:To announce a vehicle speed in a desired announcing mode by emitting a voice synthesized reading out a phonemic piece corresponding to the vehicle speed area according to a set mode with the searching of a corresonding vehicle speed area, the detection of changes in the vehicle speed area and the like. CONSTITUTION:An ROM9 of a microcomputer 6 is accessed to search a corresponding vehicle speed area by vehicle speed information through a vehicle speed sensor 1 and an analog-digital converter 3 to be written into an RAM 8. The preceding vehicle speeds are compared with subsequently searched vehicle speed area to detect possible changes in the vehicle speed area. On the other hand, a program is picked up from the ROM9 corresponding to an announcing mode selected with a mode changeover switch 23. A phonemic piece is read out corresponding to the vehicle speed area from an ROM11 through a CPU7 to control the vehicle speed voice synthesization and the like with a voice synthesizing means 12 based on the phonemic piece. Thus, a vehicle speed inciation sound is emitted in the desired announcing mode from a speaker 22 immediately after the alternation of the vehicle speed area, every desired time, at each variable time corresponding to the vehicle speed and at a random time or the like.

Description

[Detailed Description of the Invention] The present invention relates to a vehicle speed reporting device suitable for application to automobiles, and particularly relates to a vehicle speed reporting device which notifies the vehicle speed by voice so that the vehicle speed does not have to be recognized visually. The system limits the reporting mode to only when the vehicle speed changes, and attempts to keep the vehicle speed report from becoming noisy.

Furthermore, looking at the speedometer even momentarily while on an excursion or on a crowded road can be dangerous as it can lead to distracted driving. In view of this need, the applicant of the present invention previously proposed a vehicle speed reporting device for reporting the vehicle speed by voice in ``Special Edition No. 100887/1987''.

The previously proposed Tanhayadori@I installation has three vehicle speed reporting modes: a fixed time interval mode, a vehicle speed dependent mode that shortens the notification interval in proportion to the vehicle speed, and a sleep prevention mode that randomizes the reporting interval. We are proposing an example in which W is created so that you can select. Each of these reporting modes has its advantages and disadvantages.1 It is impossible to say which mode is particularly superior, but if you are forced to do so, the reporting time interval becomes shorter in proportion to the vehicle speed in the vehicle speed mode. It is also possible that some users find it noisy. Therefore, it is desirable to provide reporting modes for each hammer depending on various situations and user preferences.

An object of the present invention is to provide a vehicle speed reporting device that can select a new reporting mode apart from these reporting modes.

In the first invention of this application, the vehicle speed is divided into a number of ranges, and it is determined in which region the existing vehicle speed should be mapped, and only when the vehicle speed or other speed is changed, the change (later) is made. The system is configured to broadcast vehicle speed ranges of

Therefore, according to the first invention, the difference in vehicle speed @I is limited to only when the vehicle speed changes, and it is possible to prevent the vehicle speed notification from becoming noisy.

In the second invention of the flat octopus skewer shaft, if the vehicle speed continues for more than 110 seconds for a certain time in the speed reporting mode proposed in the first invention, the vehicle speed is automatically switched to the fixed time mode and the vehicle speed is reported every sea time. This paper proposes a device.

According to the second invention, even if the vehicle continues to run at a constant speed for a long time without changing the vehicle speed, the vehicle speed is reported at constant intervals of Ef#1141, thereby eliminating the driver's anxiety.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the invention. In the figure, 1 indicates a vehicle speed sensor. For example, the vehicle speed sensor 1 can be configured with means for converting the rotational speed of a wheel into a pulse frequency. Therefore, in this example, it is assumed that the vehicle speed sensor 1 outputs a pulse signal 2 that waits for a cylinder wave number proportional to the vehicle speed. This pulse signal is input to the AD converter 3, which converts the vehicle speed information from AD to the first input port 4 at regular intervals.
Enter. In this example, the AD converter 3 can be constituted by a pulse counter, and by counting the output pulses 2 of the sensor 1 for each predetermined period of time by the pulse counter, the output of the counter is converted into a parallel digital signal of a binary coded decimal code. Can attend signals. input boat 4
The vehicle speed data inputted to is read into the microcomputer 6 via the pass line 5. The microcomputer 6 has a central processor 7, as is generally well known.
Random access memory C (hereinafter referred to as RAM) 8, and read-only memory C (hereinafter referred to as ROM) that stores programs.
The central processing unit #7 operates according to the program stored in this 10M9 and converts the vehicle speed data into an audio signal. perform an action that emits a sound.

In order to output the garage data as voice, a voice synthesis ROM II and a voice synthesizer 12 are required in addition to the microcomputer 6.
It is widely criticized. In the speech synthesis RUM 111C, percentage parameters of the speech to be emitted are stored in advance. For example, f cumulative months corresponding to 1, 2.3...9, 10,
Each fPM% fine parameter of the phoneme unit corresponding to 20, 30...90, 100°200 is stored.

The vehicle speed data input to the first human-powered boat 4 is -11, R
It was moved to A M 8 and was processed according to the program stored in OM 9 to rank 100th, 10th,
It is decoded into data for each 1st place.

The 100th, 10th, and 1st data determine the address of t<uMii for voice synthesis, and the characteristic parameters of the voice stored in those addresses are retrieved from the ROM 11.
m. The 7M parameters of the 100th, 10th, and 1st sounds are sequentially sent to the voice synthesizer 2 through the central processing head 7, and are then sent to the voice synthesizer 2 for voice synthesis in the synthesizer 12. be done. The synthesized encoded signal (digital code) resulting from voice synthesis is transferred to the output latch circuit 12tNCI [next, this output latch circuit 12b is outputted via the central processing unit 7 and the output port] 3, and then transferred from the output port 13 to the output port 13. DA transformer] Output to 4. 1) A conversion 'a] 4 converts the composite encoded signal (digital signal) into an analog signal and supplies it to the circuit J5.

f various adjustment (b) paths 15 include a signal path 15a that provides a constant amount of attenuation, and a variable #! The voice signal g is separated into these two yarn paths 15a and 15b, and the output signal G is outputted by a multiplexer 17 to select the signal number Ig that has passed through some of the yarn paths. It is configured so that it can be done.

Suppose that the book controls multiplexer 17 so that the dye is leached through 15b. 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 2! [! Smooth the audio signal and output it to an amplifier] 9 and speaker 2]
and the loudspeaker 2
Emit audio from 1. Therefore, when the vehicle speed is 125 hours, the sound of hiyaku, nijiu, and gurgle is emitted. In addition to the voice indicating the vehicle speed, it is also possible to emit a specific sound such as ``Currently at 125 kph.''

Here, the switch 23 is a switch for switching the vehicle speed broadcast audio reporting mode. The mode changeover switch 23 has, for example, five switching contacts a, I, b, and CI. A second constant time notification mode is set in which notification is made every few minutes, for example, at intervals of several minutes, and contact point C is set to a vehicle speed (vehicle speed) presence notification mode according to the current trend. For example, as shown in FIG. 2, the time interval of the reporting interval Y can be programmed to become shorter as the vehicle speed X becomes faster. The contact point d is set to sleep prevention mode, and the reporting interval is set to random.
It can be configured to change the P pitch f&I wave number and report with different sounds. The push button 24 is a press switch for manually giving a notification finger.

This push button signal is chattering removal (b) path 25vil-
The signal is applied to the interrupt terminal 26 of the microcomputer 6 through the signal. The switching signal of the changeover switch 23 is input from the input boat 2ve.
= is input to the microcomputer 6.

A contact e of the mode changeover switch 23 is a contact for selecting the reporting mode according to the present invention.

In this invention, as shown in FIG.
A vehicle speed region is set at intervals, and data representing the vehicle speed region is stored in a vehicle speed region storage means. For example, a part of the storage area of the ROM 9 can be used as the vehicle speed area storage means. The vehicle speed data inputted from the vehicle speed sensor and converted into digital codes by the AD converter 3 is searched to find out which vehicle speed range the song belongs to. This retrieval is performed by comparing the data with the value representing the Kamespeed name stored in the fi ROM 9 using the function 1J of the microcomputer 7.

Once the vehicle speed range is determined, it is compared with the previous vehicle speed range and the I
It is determined whether there is a change in the vehicle speed between IJlgI and the vehicle speed range. If this judgment is true, select the 'tf element stored in 5ROM11 based on the vehicle speed data,
The phoneme is sent to the FP synthesizer 12 as a multi-sent voice to report the changed vehicle speed range.

For example, as shown at point A in Figure 3, if SOKm/H is exceeded,
If the speed drops by 60mm/h as shown in the dot,
Have someone report "Rokujutsu Kiroro".

In this way, by reporting the vehicle speed only when the single speed or predetermined ML-)lAvt range is changed, the data that is necessary when it is needed is controlled by the driver. does not cause any discomfort.

In this invention, the nail is configured so that it is notified that the nail is running at a constant speed for a certain period of time or more. The third example is
When 5 minutes have passed from BA in the figure, the microcomputer 7
A timer function provided in the vehicle detects that a predetermined time has elapsed at the zero point, and the output of this timer reports the current vehicle speed. For example, make a report like [Itsutei Gojiu Gokiro Hai].

In this manner, when the vehicle is traveling at a constant speed, the constant time mode is used to report the vehicle speed range, and the driver does not feel uneasy. FIG. 4 shows a flowchart showing the sequence of operations at the t2 position.

Therefore, the configuration of the present invention includes a search means for searching which vehicle speed corresponds to which vehicle speed region, a means for detecting that the military speed or vehicle speed region has been changed, and a sound hoe corresponding to the changed vehicle speed region. The means for taking out the piece and the timer means for detecting the elapse of 44 hours are constituted by the microcomputer 6.

@@1 In the actual example shown in Figure 1, various abnormality detection sensors 28a,
28b, 28C, 28d, and 28e are provided, and when various abnormalities are detected by these abnormality detection sensors 28a to 28e, the contents of the abnormality are reported by voice. For example, the sensor 28a is an acceleration/deceleration sensor,
8b may be a brake sensor, 28C may be a water temperature sensor, 28d may be a catalyst sensor, and 28e may be a rear-end collision prevention sensor.

The signals from each of these vibration sensors 28a to 28e are supplied to the input port 31 through the emergency signal processing circuit 29 and input into the microcomputer 6Kft'f. When an abnormality is detected from the sensor in the emergency signal processing (b) path 29, an interrupt signal is generated, and this interrupt signal No. 4D is sent to the microcomputer 6.
It is applied to the PjII input terminal 26 of the PJII terminal 26, and an abnormality is reported by voice by the cutting process.

For example, based on the detection signals of the acceleration/deceleration sensor 28a and the play sensor 28b, the vehicle speed signal, and the switching position of the transmission, a notification such as "Please downshift" or "Please shift up" can be issued. ! Is the temperature of the engine cooling water determined by water/sea sensor 28 CK? The measured temperature is compared with the set voltage provided in the processing circuit 29, and when the set value is exceeded, the logic of the bit representing the cooling water level is inverted, and the inverted signal is read into the microcomputer 6, for example. A report such as "VML level of cooling water has increased" is issued. The catalyst sensor also measures the temperature of the catalyst, and when 1M1i exceeds the set value, an inversion signal is output from the processing circuit 29 and the microcomputer 6
is read into. For example, this can be done by reporting something like ``The temperature of the catalyst has stopped''. Further, the rear-end collision prevention sensor 28e emits ultra-Tf waves from the rear of the vehicle, and uses the ultrasonic waves? & When the following vehicle approaches abnormally, the processing circuit 29 outputs a signal indicating the status, and the microcomputer 6 judges this and outputs a message such as ``The following vehicle is approaching.'' You can report it.

If the fP multiplied signal is to be emitted during these abnormalities, the multiplexer 7 is the filtration filter, and the Ig thread path 15 of the extra circuit 15 is used.
By selecting option a, a sound can always be emitted at a constant volume even when the potentiometer 16 is completely closed when an abnormality occurs.

As described above, according to the present invention, the mode changeover switch 2
3 to contact e, it is possible to select a mode in which the vehicle speed is not excessively reported. By providing such a reporting mode, it is possible to respond to a wide range of user preferences, thereby increasing the product value.

In the above description, the ROM 9 and the speech synthesis ROM II have been described as separate units, but the ROMs 9 and 11 can also be integrated into a single ROM. Further, the microcomputer 6, ROMI 1, and speech synthesizer can be integrated into one chip.

In addition, in the above, the phonograph adjustment circuit ] 5 and the multiplexer 17'
Although we have explained the case where it is inserted between the tDA converter 14 and the low-pass filter ]8, the low-pass filter]8 and the public address system
It can also be inserted between 22. Further, as the loudspeaker device 22, the low-wave circuit of a conventionally used car radio or the output circuit of a car stereo can be used. In that case, the vehicle speed will be reported by the sound of the radio broadcast or the car stereo.
It is only necessary to emit a sound in a layered manner so that the sound V representing the vehicle speed and the f of the radio or stereo can be adjusted separately.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG.
The figure is a flowchart for explaining the operation of the present invention. 1: Vehicle speed sensor, 3: AD converter, 6: Microcomputer, 12: Back door synthesis means, J4: 1) A converter, 2
2: Public address system, 23: Mode selection switch. I#Kadeide Sennin Chair! Auto body type company agent
Jun Kusano (15)

Claims (1)

[Claims] Stores a vehicle speed sensor that converts αl speed into an electrical signal, an AD change gain that converts an analog value corresponding to the vehicle speed into a digital value, and a tX piece necessary to synthesize the vehicle speed value into voice. a phoneme storage means for storing a plurality of predetermined vehicle speed regions; a heavy speed region Me storage means for storing a plurality of predetermined vehicle speed regions; a horizontal system means, a speed range change detection means for detecting a change in the above vehicle speed range from 'JjL speed, and when this detection means detects a change in the single speed range, it corresponds to the changed vehicle speed range. means for selecting and outputting a phoneme from the f-word storage means; a speech synthesis means for synthesizing speech using the retrieved nenphone purple pieces; and a DA for converting the speech information output from the speech synthesis means into DA. A vehicle speed reporting device consisting of a converter and a loudspeaker system that emits sound as the full DAIR conversion output of the converter. ρ) A light sensor that converts the vehicle speed into an electrical signal, an AD converter that converts the analog lid corresponding to the vehicle speed into a digital value, and a phoneme memory unit that stores 8 phoneme pieces necessary for synthesizing the vehicle speed value into speech. a vehicle speed region storage means for storing a plurality of predetermined vehicle speed regions; a search means for searching to which region of the vehicle speed region 1 the vehicle speed value output from the distribution AD converter corresponds; A region change detection means detects that the vehicle speed changes from the above vehicle speed region, a constant speed detection + tide detects that the vehicle speed is in the single speed or quadruple speed region for a predetermined time, and a detection means detects when the vehicle speed changes. means for selecting and retrieving a phoneme piece corresponding to the vehicle speed of the constant speed state extension from the phoneme piece storage means; A voice synthesizing means that synthesizes the extracted and next voice using a lily piece, and a voice information outputted from this voice combination 5ν means is converted into L) A, and a sound is emitted as the output voice of the DA variable. A single-speed notification device emitted from a public address system.