JPS5827444B2 - Kurumano Soukou Annaisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a driving guide device for a vehicle that is improved so as to effectively notify approaching a specified target point and provide reliable driving guidance.

The distance to the specified target point is stored in a counting storage device, etc., and the distance traveled is cumulatively measured as the car travels, and this measured travel distance is compared with the stored specific distance. A driving guide means for a vehicle that detects arrival at a target point has been considered.

However, in actual driving guidance, cars do not travel precisely in the center of the road, and there is a need to turn around due to various circumstances, and wheel slip distances, air pressure conditions, etc. Therefore, the measured distance may not be accurate enough.

Furthermore, the distance to the target point stored in the counting storage device is rarely accurate down to the last digit, and when actually using such a guidance device, it is necessary to check the point where the set distance and the actual distance traveled. , it cannot be recognized as an accurate target point.

When such a guidance device is actually used, the target point is an intersection, a particular interchange, a building, etc.

Therefore, when confirming the target point, it is necessary to check the road conditions, information boards, etc., rather than the numbers on the guide device, and it is determined when the difference between the set distance and the actual distance traveled is zero. Therefore, it is difficult to perform smooth driving operations, and there is also a risk that the vehicle will pass the target point.

Furthermore, it is not desirable for safe driving to constantly press the button while driving and check the remaining distance to the target point by comparing the set distance and the actual distance traveled.

This invention was made in view of the above points, and it does not require effort other than driving such as checking the remaining distance when driving a normal car, effectively notifying you of the approach to a target point, and making it possible to check the remaining distance at the target point. It is an object of the present invention to provide a vehicle travel guide device that enables smooth driving operations.

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

Figure 1 shows its configuration. This device divides the route to the destination into multiple parts for each target point, such as an intersection, and
Route guidance for each divided section is shown in columns, and the main memory 11 stores distance information for each divided section, as well as bending directions such as intersection points. Guide information such as instruction information is divided into addresses and stored sequentially in the order of the route.

This writing to the main storage device 11VC is performed by the input device 1
This is performed by operating the manual input unit A or the automatic input command unit B such as the keyboard of No. 2.

In the case of manual input, the distance and bending direction for each divided section are input using the keyboard.
In the case of automatic input, storage device 1 that counts and stores actual running information
The information from 3 is written into the main memory 11VC via an AND circuit 14 whose gate is opened in response to an input command.

The read information from the main memory device 11 is also coupled to the memory device 13 via the AND circuit 15.
The storage information No. 3 is displayed on the display section 16.

In this case, the actual running information for the storage device 13 is obtained by, for example, detecting the actual running information detector 17 corresponding to the rotation of the wheels, and generating a pulse signal with the signal generator 18 every unit distance traveled. With this pulse signal, storage device 1
This is to count and increment the stored numerical value of 3.

This storage device 13 is configured to accumulate and store mileage information as the car travels.

The implementation information counted in this storage device 13 is stored in the input device 1
In response to an input command from 2, it is connected to the main storage device 11, and a clear command generated in response to this input command clears the previous actual running information, and new actual running information is counted and integrated.

Further, the gate of the AND circuit 15 that controls information from the main memory device 11 to the memory device 13 is opened by a signal from the read command unit 19.

This signal also opens the gate of the AND circuit 22, causing the direction instruction signal of the main memory 11 to be stored in the direction memory 21 and displayed on the display 16.

In other words, in the device configured as described above, distance information and direction information for each divided section of the route to the destination are inputted, for example, manually from the main storage device 11Vc input device 12, and the order It is stored according to the following.

In addition, when the distance is memorized while driving, actual distance information is stored in the count storage circuit 13 for each target point of each divided section in accordance with a command from the automatic input command section B of the input device 12. to the main memory 11 via the AND circuit 14
At the same time, the data is written and stored in the storage device 13, and the actual running distance of the new section is measured.

Then, route guide information similar to that in the case of manual main storage 11VC is written and stored.

When the main storage device 110 guide information is used for travel guidance, the reading command section 19 is operated to read out the section distance information for each section, and the information is stored in the storage device 13 via the AND circuit 15, and the display device 16 The distance will be displayed.

Actual running information is coupled to this storage device 13 via a signal generator 18, and in the case of this readout running, the actual running information is coupled to the storage device 13 as a subtraction element.
The storage device 13 always counts and stores the remaining distance to the target point, which is the dividing point of the section, and displays it on the display section 16.

Therefore, the display unit 16 always indicates the distance to the target point, so that the target point can be clearly determined.

FIG. 2 shows in detail a portion of the above-mentioned device particularly related to the storage device 13. The storage device 13 is a numerical information storage section 23. It consists of a decimal point information storage section 24, and an adder 25 is coupled to the numerical information storage section 23.

This adder 25 is given a subtraction command when there is a command signal R indicating a read state, and signals for addition and subtraction are combined from the signal generator 18 section to which actual running information is combined. .

Furthermore, the decimal point storage section 24 is provided with a decimal point position detector 26 .

In this case, the numerical information storage unit 23 is configured to have, for example, three digits and stores it in units of rkmJ; if the decimal point is in the first digit, the signal A is sent from the detector 26, and if the decimal point is in the second digit, the signal A is sent. outputs signal B, and outputs signal C when it is in the third digit, which is essentially the unit of "10m", and outputs signal A,
B and C are AND circuits 27a, respectively.

27b and 27cK are combined as gate signals.

In addition, the running information is obtained as a one-pulse signal every time the Lom runs, and this signal is generated by the AND circuit 27cL.
It is combined and supplied to the counter 28.

This counter 28 counts the combined pulses and counts 10
An output signal of one pulse is obtained for each 0 m travel and I km travel, and the pulse for each 100 m travel is sent to the AND circuit 27b, lk
Pulses every m running are coupled to an AND circuit 27a.

That is, a pulse signal is taken out from the AND circuits 27a to 27c every time a distance corresponding to the lowest digit of the numerical information storage section 23 at that time is traveled. adder 25 through
is combined with

In the AND circuit 29, when the numerical information storage section 23 is configured with a shift register, the first digit is stored in the adder 25.
A gate signal is applied at a timing shifted to , and Ill is added or subtracted from the least significant digit of the storage section 23 for each pulse.

Further, a carry signal is taken out for each digit from the adder 25, and the carry signal is coupled to an AND circuit 30.

Then, a gate signal is applied to this AND circuit 30 at the timing when the most significant digit, that is, the third digit, of the numerical information storage section 23 is shifted, and a carry signal indicating that the third digit is shifted is generated. At the same time, the digit down control circuit 31 is driven to lower the memory device 13 by one digit.

The numerical information and decimal point information from the storage device 13 are as follows:
It is connected to the output device 23 and displayed as appropriate.
The numerical information is further coupled to a numerical value detection circuit 33.

In this detection circuit 33, for example, the numerical value is "2kmJ, [km
Detection signals are obtained for J, r500mJ, etc., and these detection signals are applied to AND circuits 34a, 34b, and 34cV, respectively.
c combine.

The AND circuits 348 to 34clC receive the command signal R1 indicating the read state and the signals A and B from the decimal point position detector 26, respectively.

C as a gate signal, AND circuits 34a to 34
The output signal c is coupled to the output device 32 via the OR circuit 35 as an alarm command such as a blinking display.

That is, in the device configured as described above, when the memory in the storage device 13 is first cleared and travel information is stored, the decimal point position of the storage device 13 is at the most significant digit, that is, the third digit, and the lowest The position is in units of "10rrL".

In this state, the signal C is taken out from the detector 26, which opens the gate of the AND circuit 27c, and the running information in units of 10 copies is directly coupled to the adder 25, added to the numerical information storage section 23, and output. It becomes displayed on the device 32.

That is, the output device 32 displays the actual distance traveled as shown in FIG. 3aA, and the distance measurement continues from the lowest digit to the state shown in FIG. 3B where a carry signal is obtained.

Then, when the pulse signal of the travel information is further coupled to the adder 25 from the display state of J9.99J, a carry signal is obtained from the most significant digit, that is, the third digit, and this carry signal is passed through the AND circuit 30. digit down control circuit 31
, the memory device 13 is shifted down, and its contents become as shown in FIG. 3C.

In this state, the signal B is taken out from the decimal point position detector 26, and one pulse signal is coupled to the adder 25 every 100rrL travel through the AND circuit 27b. 100rIL" information will be stored.

Finally, as shown in Figure 3 d, ``999km
, J.

That is, when recording travel information, the number of digits specified from the most significant digit of distance information is limited, and digits less than that are counted.

Based on the distance information stored in the storage device 13 in this way, when traveling to the destination, a command signal R indicating a read state is given, the adder 25 is set to a subtracting state, and the AND circuits 34a to 34cK gates give a signal.

At this time, if the decimal point position of the numerical information stored in the storage device 13 is in the first digit as shown in d in FIG. 3, the signal A is taken out from the detector 26 and the AND circuit 27a
At the same time, the gate of the AND circuit 34a to which the gate signal R is applied is opened, and this state is set during the read operation.

That is, when the car is driven in this state, a pulse signal is given to the adder 25 via the AND circuits 27a and 29a every time the car travels 1 km, and the numerical value stored in the numerical information storage unit 23 is incremented by "1" from the lowest digit. This storage unit 23 is for subtraction.
The stored numerical value becomes the remaining distance to the target point C, and is displayed on the output device 32.

Then, when the target point according to the distance information set in the storage device 13 is approached and the remaining distance is 2 km, the detection circuit 3
3, the detection signal is first applied to the AND circuit 34a whose gate is opened, and the output device 32 issues an alarm by, for example, blinking the display.

Further, when the distance to the target point stored and set in the storage device 13VC is less than i99.9 kml and the decimal point position is in the second digit, a signal B is obtained from the decimal point position detector 26.

Therefore, the numerical information storage section 23 is decremented by Ill every 100 TL runs, and the AND circuit 34
Gate b will now open.

Therefore, when the numerical value in the numerical information storage section 23 becomes "1.OJ", that is, when the remaining distance is 1 km, a signal is given from the detection circuit 33 to the AND circuit 34b, and an alarm is issued.

Similarly, the distance to the initially set target point is 9.9
If the distance is 9km or less and the decimal point is in the third digit, a warning will be issued when the remaining distance is 500m.

That is, the remaining distance at which a warning is issued is set according to the distance to the target point, which is highly effective for recognizing the target point.

For example, the section distance to the set target point is
The remaining distance is 500, which is the same for both 900km and 1km.
If a warning is issued at m, there is no problem at lkm, but it is not effective at 900 km.

In other words, when a driver travels a long distance, the error distance in the distance measurement that occurs during that time inevitably increases, so there is a risk that it will be inconvenient to visually recognize the target after the warning is issued. are very common.

In fact, when driving long distances, it is more effective to inform the driver that the target point is 3 km away from the target location, which is more effective in terms of target acquisition and driving sensation.

Therefore, as mentioned above, setting the remaining distance at which the warning will be issued according to the size of the initially set distance will have a great effect on driving sensation and finding the target point, and will provide smooth driving guidance. It will come to pass.

Furthermore, it is possible to effectively absorb errors in distance measurement that occur when the button is pressed while driving.

In the above embodiment, the case where the route to the destination is divided into multiple sections and guidance is provided sequentially for each section is shown.
This may indicate a single section.

For example, it is highly effective when driving on a highway and guiding the way to a target interchange.

In addition, in the example, the size of the set distance was determined by the decimal point position, but this is done by calculating the value that should issue a warning from the numerical value that indicates the distance, or by setting it to a certain value by comparison etc. The alarm may be issued when the remaining distance is reached.

Further, the alarm means is not limited to the blinking of the display as in the embodiment, but any means such as lighting an alarm lamp or generating a buzzer may be used.

As mentioned above, it goes without saying that the present invention is not limited to the matters described above, and can be applied in various ways without departing from the gist thereof.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a travel guide device according to an embodiment of the present invention, FIG. 2 is a configuration diagram specifically showing the portion related to the storage device of the above embodiment, and FIG. FIG. 3 is a diagram illustrating the state of numerical values written in a storage device. 11...Main storage device, 12...Input device, 13...Storage device, 17...Actual running information detector, 18...・Signal generator, 23...
... Numerical information storage section, 24 ... Decimal point information storage section, 25 ... Adder, 26 ... Decimal point position detector, 32 ... Output Device, 33...
...Number position detection circuit.

Claims (1)

[Claims] 1. Storage means for storing distance information for each section, and distance information for a predetermined section read from this storage means,
a counting means that performs subtraction with a pulse synchronized with the rotation of the wheel; a determining means that determines the magnitude of the distance information read from the storage means; and a value in the counting means that determines the magnitude of the distance information. 1. A travel guide device for a vehicle, comprising: a detection means that outputs a detection signal when a specific value corresponding to is reached; and a notification means driven by the detection signal from the detection means.