JPS6140509A - Distance recording and regeneration apparatus - Google Patents

Abstract

PURPOSE:To automatically and accurately indicate the distance of a going road to a walker, by automatically recording the distance in the going road by the indication of recording and indicating the regeneration of recording in a returning road. CONSTITUTION:At the recording time of the distance in a going road, an operation means C operates an advance direction converting point on the basis of the signals of a direction detection means A and a walking number detection means B and, at the time of regeneration in a returning road, the reverse calculation of a walking distance is performed and operation is performed in order to output a signal at the direction converting point in the going road. The output of an operation means C is temporarily stored by a memory means D at the time of recording and outputted at the time of regeneration. Further, information sound corresponding to the operation result of the operation means C is generated by an information means E. By this method, a waker can easily know the distance of the going road in the returning road.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is useful when returning to the same point after parking a car for a long time in a parking lot etc. The present invention relates to a journey recording and reproducing device for reproducing on the return trip.

(Prior Art and Problems) Conventionally, when a car is parked for a long time in a large parking lot such as an airport or a baseball field, 5. People sometimes forget where they parked their cars, and it can take a long time for people who own a car to search for a parking spot.

(Object of the invention).

In order to solve the above problems, the present invention detects the direction of travel and the number of steps walked when it is necessary to record the outbound route, and uses these detected values to correlate the direction of change, (2) and the number of steps each time the direction of travel changes. To provide a journey recording and reproducing device which detects the number of steps walked when the outgoing route needs to be reproduced on the return journey, and notifies a change in the traveling direction according to the azimuth change direction stored in the outbound journey based on the detected value. The purpose is to

(Example, The present invention will be described below with reference to embodiments shown in the accompanying drawings.

As shown in FIG. 1, the device of the present invention includes: azimuth detection means A that detects the direction of travel of a person using earth's magnetism; step count detection means B that detects the number of steps by detecting the vertical movement of the person when walking;
A recording setting means F for instructing and setting recording of the walking distance; a reproduction setting means G for instructing and setting for replaying the walking distance; and signals from the direction detecting means A and the step count detecting means B when recording the distance on the outgoing route. a calculation means C which calculates a turning point in the direction of travel based on the information, calculates the walking distance in reverse when reproducing on the return trip, and performs calculations to output a signal at the turning point on the outbound trip; and calculation means C when recording. It is composed of a storage means for temporarily storing the output of C and outputting it during playback, and a notification means E for emitting a notification sound according to the calculation result of the calculation means C.

Since the direction detecting means only needs to be at a fixed angle with respect to the direction of travel, it can be stored in a pocket or worn on a belt by the owner of the device of the present invention.
29966 r Magnetic Field Measuring Apparatus" may be used.

That is, the direction detecting means A receives the signal from the magnetic detecting section 21 through filter circuits 22 and 23, as shown in FIG. 2, for example.
After converting it into a DC voltage value in sample and hold circuits 24.25, it is converted into digital azimuth signals Xθ, Yθ in A/D converters 26.27.

As shown in FIG. 3, the direction is determined by inputting the direction signals X.theta. and Y.theta. to the calculation means C and calculating .theta.=jan-'(Y.theta./X.theta.).

The step count detection means B is generally known as a "pedometer" and is disclosed in, for example, Japanese Patent Laid-Open No. 53-76775 "Walking Frequency Meter", which generates a pulse for each step.

The calculation means C can be a microcomputer, and is equipped with a CPU, ROM, RAM, I10 circuit section, clock generation section, etc., and is powered by a 5V stabilized power supply via a stabilized power supply circuit (none of which is shown) rather than a battery. It enters the operating state after receiving the supply of

The storage means stores the results of the calculation means C.
It consists of a digital memory that is always activated by a backup power source (not shown).

The notification means E is a buzzer that generates a notification sound, and outputs a sound corresponding to the content of the notification.

The memory setting means F and the playback setting means G are switches that are manually turned on by the owner of the apparatus.

A microcomputer serving as the calculating means C is preprogrammed to carry out the steps shown in FIGS. 4 to 6, and the details thereof will be explained below in relation to the operation of the entire apparatus of the present invention.

In the device of the present invention equipped with the above-mentioned means A-G, when the power switch (not shown) is turned on, the battery (not shown) is turned on.
Each part of the electrical system is ready to operate after receiving power supply. The calculation means C then repeatedly executes the setting routine shown in FIG.

In the "setting routine" shown in FIG. 4, step 401 initializes the calculation means C1 and storage means by supplying power, and the process proceeds to step 402. Step 402
For example, if the switch (SW) of the recording setting means F that generates a setting signal to memorize the outbound journey from the car is set to 0.
N10FF determination is performed, and when recording 5WfJ<ON state, the determination becomes YES and the process proceeds to step 403. In step 403, the direction detection means A is activated to start direction detection. Next, the process proceeds to step 404, where a buzzer sound "a" is output to notify the user that direction detection has started (for example, one long sound), and the process proceeds to the "recording routine" shown in FIG. On the other hand, if the recording SW is in the OFF state in step 402, the determination is NO and the process proceeds to step 405.

In this step 405, for example, a switch (SW) (7) ON10FF of the regeneration setting means G that generates a setting signal for reproducing the distance to the car is determined, and the regeneration sw'
When is in the ON state, the determination is YES and the process proceeds to the "reproduction routine" shown in FIG. Also, the playback switch is turned on.
In the FF state, the determination is No, and step 402
Return to , and repeat the judgment for each switch.

In FIG. 5 showing the "recording routine", H is the recording SW.
This is a measured value of the number of steps taken starting from the position where the switch is turned on, for example, the position of the car, and is a value stored in the digital memory of the storage means. D (i) is an array representing the direction of bending; when the direction is to the right, a constant "R" is stored, and when the direction is to the left, a constant "L" is stored, and it is managed by the index i. It is stored in the digital memory of the storage means. N (+) is an array representing the measured value of the total number of steps walked at the time of turning, which is managed by index i and stored in the digital memory of the storage means. The index i is incremented by 1 at each turning angle, ie, direction change, starting from the position where the recording switch is turned on.

First, in step 501, the number of steps H is set to H=0 to start recording the outward journey. The index i is cleared to 1-Q and the process proceeds to step 502. In step 502, it is monitored by the pulse output of the step count detection means B whether it has "taken one step forward", and when it has taken one step forward (pulse output is present), it becomes YES.
In step 5.3, add 1 to the number of steps H stored in the storage means and store it again in the storage means,
Proceeding again to step 502, a judgment is made. step 50
In step 2, if one step has not been taken (no pulse output), the determination is NO and the process proceeds to step 504.

In steps 504 and 506, changes in the output of the direction detection means A are calculated to determine whether or not there is a change in direction. In this embodiment, if the amount of change exceeds a predetermined value, it is determined that the curve is "curved."

If it turns to the right in step 504, the determination is YE.
S, and the process advances to step 505. In step 505, a constant "R" indicating the right direction as the i-th change direction is assigned to the array D (i) of the storage means for storing directions. If the vehicle is not turning to the right in step 504, the determination is No.
Then, in step 506, it is determined whether the driver turned left.
)! determined. If it turns to the left, the determination is YES, and in step 507, the array D(i)i that stores the direction is created.
A constant "L" indicating left is substituted as the th change gait, and the process proceeds to step 508. In step 508, the number of steps H at that time
is assigned to the array N (i) in the storage means. Next, the process advances to step 509, where a buzzer sounds to notify that input and storage of data (direction and number of steps) for the i-th direction change has been completed.
a'', and the process proceeds to step 510, where 1 is added to the index i of the array.The process then proceeds to step 502 again, and the above-described determination is repeated.

In step 506, if the vehicle is not turning left, the determination is NO and the process proceeds to step 511.

In step 511, it is determined whether the recording SW is in the 0N10FF state. If the recording SW is turned off to end the recording, the determination is NO, and the process proceeds to step 512, where the operation of the direction detection means A is stopped and a buzzer sound "a" is output to notify that the direction detection means A has been stopped. “Setup routine” shown in
Return to On the other hand, in step 511, the recording SW is set to O.
When the N state is maintained, the determination is YES and the process returns to step 502.

In addition, each value of D (i), N (i) and H
The final value of 2i is stored in the digital memory of the storage means, and the stored contents are maintained by the backup power supply.

In the "reproduction routine" of FIG. 6, 1 is subtracted from the index i of the array in step 601, and the process proceeds to step 602. In step 602, it is determined whether the value of index i is 0. In step 602, when i#Q, the determination is No, and the process proceeds to step 605. In step 605, array element N (
It is determined whether or not the number of steps H on the return trip measured in step 611, which will be described later, is equal to i), and when N (i) = H, it is determined that this is the point where there was a change in direction on the outward route, and the determination is YES, and step 606 Proceed to. Step 606
Then, the traveling direction to be changed is determined, and if the value of D (i) is "L" indicating left, the determination is YES and the process proceeds to step 607. Note that since the direction of travel is opposite when recording the outbound route and when reproducing the return route, in the case of D (+) - "L", it is necessary to turn to the right during playback, so in step 607, the direction of travel is reversed. A buzzer sounds to notify you that
b" (for example, once briefly) and proceeds to step 609. In step 609, 1 is output from the current value of index i.
Then, the process returns to step 602 and the same calculation is repeated. On the other hand, when D(+)≠“L” in step 606,
In other words, when D (i) - "R", the judgment is No,
Proceed to step 608.

In step 608, D (+) - "R".
Turn left" and output the buzzer sound "C" (for example, twice briefly), and proceed to step 609, subtract 1 from the current value of index i and return to step 602.

In step 605, if N (i)≠H, the determination is No, and the process proceeds to step 610. Step 610
Then, it is determined whether or not one step has been taken depending on the presence or absence of an output pulse from the step count detection means B. If the step has been taken one step, the determination is YES and the process proceeds to step 611, subtracts 1 from the step count H, and returns to step 602. Return to and perform the iterative calculation.

In step 610, if one step has not been taken, the answer is NO, and the process proceeds to step 612. In step 605, N
If (i)≠H, the determination is No, and step 610
move on. In step 610, it is determined whether one step has been taken depending on the presence or absence of an output pulse from the step counting means B, and
If the step has been taken, the determination is YES and the process proceeds to step 611, where 1 is subtracted from the step count H and the process returns to step 602 to repeat the calculation. If one step has not been taken in step 610, the determination is No, and the process proceeds to step 612. In step 612, it is determined whether the reproduction SW is kept in the ON state, and if it is OFF, the determination is NO and the process returns to the "setting routine" shown in FIG.

In this step 612, when the user discovers a journey recording start point, for example, a parking position of a car, during the journey reproduction, the reproduction can be forcibly terminated by turning off the reproduction SW. Meanwhile step 612
In this case, when the reproduction SW is 1ON, the determination is YES, and the process returns to step 602 to repeat the calculation.

On the other hand, when replaying the route, the final direction change is completed and i
When the value becomes 0, the determination in step 60H41J becomes YES, and the process proceeds to step 603. In step 603, it is determined whether the value of the number of steps H is O. When H≠0, the determination is NO and the process proceeds to step 610, but when H=O, the determination is Y.
It becomes ES and the process proceeds to step 604. In step 604, the playback is completed, and the notification means E outputs a buzzer sound "a" indicating that the recording start point has been reached, and the process returns to the "setting routine" shown in FIG. Here, the user turns off the power switch (not shown) to complete all operations, that is, recording and reproducing the journey. .

Note that the present invention is not limited to the above embodiments,
Various modifications are possible. Representative examples are shown below.

First, between step 511 and step 512 of the "recording routine" in FIG. 5, the absolute azimuth θ detected by the azimuth detection means at that time at the final point of the journey record is stored as a variable in the storage means. By adding a step, the azimuth detecting means is temporarily activated before executing step 601 of the "reproduction routine", and the value (recorded Step 60 after outputting a buzzer sound "a" to notify that the player is facing in the proper direction at the start of playback when the decision is YES (step 60).
1, and if the determination is NO, the same operation may be repeated in such a way that the direction of travel when reproducing the route is the same as the direction of travel when recording the route.

Although a microcomputer is used as the calculation means C, a hard logic configuration using an electronic circuit may also be used.

Although a buzzer sound is used as the notification means, for example, a device that notifies the voice synthesis circuit of words such as "turn right" or "turn left" may also be used. Any type of information may be used as long as it can be determined visually or aurally.

(Effects of the Invention) According to the present invention, the distance on the outbound trip is automatically recorded by instructing to record it, and the distance in the outbound trip is automatically instructed to the pedestrian accurately by instructing to reproduce it on the return trip. This has the effect that pedestrians can easily know the outbound route on their return trip.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the route recording and reproducing apparatus according to the present invention, and the 21st! l is a block diagram showing the configuration of the direction detection means shown in FIG. 1, FIG. 3 is a characteristic diagram showing the direction output of the direction detection means shown in FIG. 2, and FIGS. 4 to 6 are calculations shown in FIG. 1. 3 is a flowchart showing a setting routine, a recording routine, and a reproduction routine executed by the means. A... Orientation detection means, B... Step count detection means, C...
・Calculating means, D... Storage means, E... Notification means, F
...Record setting means, G...Reproduction setting means.

Claims (2)

[Claims] (1) Direction detecting means for detecting the direction of travel, step count detecting means for detecting the number of steps walked, recording setting means capable of manually instructing recording, reproduction setting means capable of manually instructing reproduction, storage means, and notification. In response to a recording instruction from the means and the record setting means, the direction of change and the detected number of steps are stored in the storage means in association with each change in the traveling direction by the outputs of the direction detecting means and the number of steps detecting means; In response to a reproduction instruction from a reproduction setting means, each time the output of the step count detection means reaches the detected step count value stored in the storage means, the traveling direction is changed according to the direction of change stored in the storage means. A recording/reproducing apparatus comprising: arithmetic means for causing the notifying means to notify the information. (2) The calculation means further responds to the record setting means to cause the storage means to store an absolute azimuth corresponding to the output of the azimuth detection means at the end of recording, and stores the absolute azimuth in the storage means at the end of recording. 2. The route recording and reproducing apparatus according to claim 1, wherein the notifying means is made to notify the absolute azimuth at the time of starting reproduction in response to the reproduction setting means.