JPH07223573A - Traveling state detecting device - Google Patents

Abstract

PURPOSE:To corretly measurement-display the traveling state by measuring the traveling state of a traveling body when the revolution detection level of a wheel reaches a previously set revolution level and by displaying the measured traveling state of the traveling body, on a display means. CONSTITUTION:A transmitter 6 generates a revolution detection pulse signal by the electromagnetic inductive action when a magnet 4 installed at a proper place of a front wheel 2 passes through the side, accompanied with the revolution of the front wheel 2, and the revolution detection pulse signal is received by a receiver 7 installed on the handle bar, etc., of a bicycle. Further, a dynamo 8 generates the voltage at the level corresponding to the revolution state of a rear wheel 2b, and supplies the generated voltage signal to the receiver 7. The receiver 7 starts the measurement operation for the travling time by a built-in timer, when the power generation voltage in the dynamo 8 reaches a set voltage level, and the traveling time, traveling speed, traveling distance, etc., are measurement-calculated on the basis of the front wheel revolution detection pulse signal and the measurement traveling time, and the results are displayed on a liquid crystal display part 9 of the receiver 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling state detecting device for detecting a traveling state of a moving body such as a bicycle which is driven by rotation of wheels.

[0002]

2. Description of the Related Art Conventionally, for example, in a bicycle, there is known a device called a cycle computer which detects a rotating state of wheels, measures a traveling time, a traveling speed, a traveling distance and the like and displays them in real time.

That is, this cycle computer is
For example, a magnetic detection unit and a transmission unit are provided adjacent to the rotation orbits of the magnets attached to the spokes of the front wheels, and a rotation detection pulse signal transmitted from the transmission unit every time the front wheel makes one rotation,
It is received by the receiver attached to the handle.

Then, based on the rotation detection pulse signal received by the receiving unit, the wheel size stored in advance, and the elapsed time obtained by a timer or the like, the running time, running distance, running speed, etc. up to the present time are calculated. It is calculated and displayed on the display unit. As a result, the occupant of the bicycle can know the running state in real time.

[0005]

However, in the above-mentioned conventional cycle computer, the operation of the timer is started from the time when the start key operated by the user at the start of running, and the rotation detection pulse is measured together with the running time measurement process. Since the calculation and display process of the travel distance and the travel speed based on the signal is started, the travel time is measured and added even before actually riding and starting the travel, and is accompanied by the pushing and walking of the bicycle. The traveling distance and traveling speed are calculated by the rotation detection pulse signals of the front wheels, and there is a problem that the exact traveling time, traveling distance, and traveling speed after actually getting on the vehicle and starting traveling cannot be obtained. .

The present invention has been made in view of the above problems,
An object of the present invention is to provide a running state detection device capable of accurately measuring and displaying the running state after actually riding in a vehicle without starting measurement of the running state from the time of operating the start key. To do.

[0007]

That is, a first traveling state detecting device according to the present invention comprises a rotation detecting means for detecting rotation of a wheel on which a traveling body is traveling, and a wheel detecting means for detecting the rotation of the wheel. When the rotation detection level reaches a preset rotation level, a traveling state measuring means for measuring the traveling state of the traveling body, and a display means for displaying the traveling state of the traveling body measured by the traveling state measuring means. It is configured with and.

A second traveling state detecting device according to the present invention is the first traveling state detecting device according to the first traveling state detecting device, wherein the rotation detecting means is a generator that generates a voltage in response to rotation of wheels. The rotation detection level is the power generation voltage level.

A third running condition detecting device according to the present invention is the first or second running condition detecting device, wherein the running condition measuring means is used to measure the running time, running distance and running of the running body. It is a means for measuring speed.

[0010]

That is, in the first traveling state detecting device, the traveling state is measured and displayed when the rotation level of the wheels involved in the actual riding is detected. Also,
In the second traveling state detection device, when a generator voltage corresponding to the rotation of the wheels accompanying the actual riding traveling is generated,
The traveling state will be measured and displayed.

Further, in the third traveling state detecting device,
When the rotation of the wheels due to the actual riding and traveling is detected by the power generation voltage level of the generator, for example, the traveling time, traveling distance, and traveling speed are measured and displayed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows a bicycle 1 equipped with a running condition detection device.
3 is a side view showing the external configuration of FIG.

FIG. 2 is a view showing the external arrangement of various signal transmission units and receivers of the traveling state detecting device. The front wheel 2 provided on the bicycle 1 is provided with magnets 4 for front wheel rotation detection on the spokes 3 thereof.

A transmitter 6 is fixed to the front wheel frame 5 of the bicycle 1 outside the rotation path of the magnet 4, and a receiver 7 is attached to a handle 5a above the transmitter 6.
Is installed.

On the other hand, the rear wheel frame 5b is provided with a generator 8 which generates electric power according to the rotation of the rear wheel 2b. That is, the transmitter 6 generates a rotation detection pulse signal of the front wheel 2 by an electromagnetic induction action when the magnet 4 passes through the side of the front wheel 2 due to the rotation R of the front wheel 2. The rotation detection pulse signal wirelessly transmitted from the transmitter 6 for each rotation is received by the receiver 7.

The generator 8 comes into contact with the side surface of the rear wheel 2b and generates a voltage of a level according to the rotation state of the rear wheel 2b. The voltage signal generated by the generator 8 is , Is directly supplied to the receiver 7.

A liquid crystal display section 9 is provided on the upper surface of the receiver 7, and a size input key 10 for inputting the tire size and crank length of the bicycle 1 and a bicycle 1 running on the periphery thereof. A start key 11 operated to start the operation, and an END key 1 operated to stop the operation
2. A display selection key 13 and the like operated when selecting a display screen are provided.

The receiver 7 starts a running time measuring operation by a built-in timer when the generated voltage generated from the generator 8 reaches a preset voltage level. Based on the front wheel rotation detection pulse signal received from 6 and the measured traveling time, the traveling state (traveling time, traveling speed, traveling distance, etc.) of the bicycle 1 is calculated and displayed on the liquid crystal display unit 9.

In this case, the preset voltage level of the power generation voltage generated by the generator 8 is the lowest voltage level generated when the rear wheels 2b are rotated by the actual riding and driving, It is higher than the minute voltage level generated by the rotation of the rear wheel 2b.

FIG. 3 is a block diagram showing a configuration of an electronic circuit of the traveling state detecting device. The receiver 7 of this traveling state detection device is provided with a CPU 21.
The key input unit 22 (10, 11, 12, 13), the receiving unit 23, the timer circuit 24, the ROM 25, and the RAM 26 are connected to, and the liquid crystal display unit 9 is connected via the display drive circuit 9a.

The voltage signal from the generator 8 is supplied to the comparator 27, and when it reaches the reference voltage (preset voltage level) supplied from the reference voltage unit 28, the comparator output "1". Is supplied to the CPU 21.

The key input section 22 is for turning on / off the circuit power.
In addition to the off key, the size input key 10 in FIG.
Start key 11, END key 12, display selection key 13
Various key operation signals from the key input unit 22 are supplied to the CPU 21.

The receiving section 23 receives the rotation detecting pulse signal of the front wheel 2 transmitted from the transmitter 6, and the rotation detecting pulse signal received by the receiving section 23 is the CPU 2
1 is supplied.

The timer circuit 24 operates to count the time in accordance with a crystal oscillation signal of a predetermined cycle.
The clock signal from 4 is supplied to the CPU 21. RO
The system program of this running state detection device is stored in advance in M25, and the CPU 21 uses this ROM2.
The operation of each part of the circuit is controlled in accordance with the system program read from 5, and the measurement calculation display processing of the running state and the like are executed.

A timer circuit 24 is provided in the RAM 26 when the comparator output "1" is supplied to the CPU 21.
A timer counting register 26a in which running time data to be measured based on a timing signal from S1 is sequentially updated and stored, a display register 26b in which display target data to be displayed on the liquid crystal display unit 9 is written, and which functions as a frame memory, and the key described above. A tire size register 26c for storing tire size data of the front wheels 2 inputted by operating the size input key 10 in the input section 22, the comparator output "1"
Is supplied to the CPU 21 and then the front wheel rotation speed is sequentially updated based on the rotation detection pulse signal of the front wheel 2 input via the receiving unit 23. The rotation speed register 26d stores the front wheel rotation speed and the tire size. The traveling distance data of the bicycle 1 calculated based on the traveling distance and the traveling time of the bicycle 1 calculated by the CPU 21 are sequentially updated, and the traveling speed data of the bicycle 1 calculated based on the traveling distance and the traveling time are sequentially updated. A traveling speed register 26f or the like to be stored is provided.

The liquid crystal display section 9 includes the key input section 22.
In response to the operation of the display selection key 13 in FIG. 1, the tire size display associated with the operation of the size input key 10, the traveling time data updated and stored in the timer counting register 26a of the RAM 26, and the traveling distance register 26e are stored. The traveling distance data, traveling speed data stored in the traveling speed register 26f and the like are displayed. The liquid crystal display unit 9 is controlled by a display control signal from the CPU 21 according to the displayed data written in the display register 26b. The display is driven through the display drive circuit 9a.

On the other hand, the running time of the bicycle 1 measured by the CPU 21 is after the comparator output "1" corresponding to the power output of the generator 8 is supplied to the CPU 21, that is, after the actual riding / running is started. , Timer circuit 24
Is measured based on the time measurement data supplied by and is stored in the timer time measurement register 26a.

Further, the traveling distance of the bicycle 1 calculated by the CPU 21 is started after the comparator output "1" corresponding to the power output of the generator 8 is supplied to the CPU 21, that is, the actual riding traveling is started. Then, it is calculated based on the front wheel rotation speed that is counted and stored in the rotation speed register 26d and the front wheel tire size that is previously stored in the tire size register 26c, and is stored in the travel distance register 26e.

The traveling speed of the bicycle 1 calculated by the CPU 21 is calculated based on the traveling time updated and stored in the timer timing register 26a and the traveling distance updated and stored in the traveling distance register 26e. It is stored in the register 26f.

Next, the operation of the traveling state detecting device having the above structure will be described. FIG. 4 is a flowchart showing a traveling mode process in the traveling state detecting device.

That is, when the user operates the start key 11 to start traveling of the bicycle 1, it is determined whether or not the comparator 27 supplies the comparator output "1" to the CPU 21, that is, the actual traveling of the bicycle. It is determined whether or not the generated voltage of the generator 8 according to the rotation operation of the rear wheel 2b has been generated (steps S1 → S).
2).

In this case, even if the start key 11 is operated, the generated voltage level of the generator 8 is preset from the reference voltage section 28, for example, when the rear wheel 2b is rotated by pushing and walking. The generated reference voltage is not reached, and the output of the comparator 27 is held at "0". At this time, although the traveling time data is read from the timer timing register 26a of the RAM 26 and the time display processing for displaying on the liquid crystal display unit 9 is executed, the traveling time measurement processing is not started, so that the displayed traveling time is "0h. “(Steps S2 → S4).

When the output of the comparator 27 is "0" and the running time is not measured, the receiving unit 2
Since the front wheel rotation detection signal supplied via No. 3 is not counted and the front wheel rotation speed stored in the rotation speed register 26d in the RAM 26 is held at "0", the traveling distance and traveling speed are calculated. No processing is performed.

If the push-walking is continued while the END key 12 is not operated, S2 → S
The processes of 4 and S5 are repeatedly executed, and the displayed traveling time is held as "0h".

After that, when the user actually gets on the vehicle and starts traveling, the voltage generated from the generator 8 according to the rotation of the rear wheel 2b is supplied from the reference voltage unit 28 in advance. Is higher than the reference voltage and the comparator 27
Becomes "1", the running time measurement process based on the time measurement data from the timer circuit 24 is started, and the running time data is stored in the timer measurement register 26a in the RAM 26.
Are sequentially updated and stored, and are displayed on the liquid crystal display unit 9 (steps S2 → S3).

In this case, the counting process of the front wheel rotation detection signal supplied through the receiving unit 23 is also started, and the front wheel rotation speed is updated and stored in the rotation speed register 26d. Therefore, the front wheel rotation speed and the tire size register 26c are stored. The traveling distance is calculated based on the front tire size stored in advance, is stored in the traveling distance register 26e, and is displayed on the liquid crystal display unit 9.

At the same time, the traveling speed is calculated based on the traveling time updated and stored in the timer clock register 26a and the traveling distance updated and stored in the traveling distance register 26e, and stored in the traveling speed register 26f. Together with this, it is displayed on the liquid crystal display unit 9.

On the other hand, when the output of the comparator 27 becomes "0" again when the user gets off the bicycle 1 and stops, or when he / she pushes or walks, the traveling time measuring process, the traveling distance and the traveling speed are performed. The calculation process of is interrupted, and the traveling time and traveling distance stored and held in the RAM 26 at that time are still displayed (steps S2 → S4, S5).

After that, when the actual riding is started,
When the output of the comparator 27 becomes "1", the interrupted travel time measurement processing, travel distance and travel speed calculation processing is restarted, and the corresponding registers 26a, 26e, 26f in the RAM 26 are updated. The data is stored and displayed on the liquid crystal display unit 9 (step S2 →
S3 → S4, S5).

Then, for example, when the END key 12 is operated by the user reaching the destination, the measurement and calculation processing of each running state is stopped and stored in the corresponding registers 26a, 26e, 26f in the RAM 26. The data such as the running time and the running distance that have been set are cleared (step S5
→ S6).

Therefore, according to the traveling state detecting device having the above-described configuration, the rotating state of the rear wheel 2b at which the user actually starts the riding is determined by the generator 8 which generates a voltage corresponding to the rotation of the rear wheel 2b. From the timer circuit 24 based on the timing data from the timer circuit 24 to determine whether the output voltage of the comparator 27 becomes “1” and the reference voltage supplied from the reference voltage unit 28 reaches a preset reference voltage. Measurement processing,
The front wheel rotation speed counting processing based on the front wheel rotation detection signal received by the reception unit 23, the travel distance calculation processing based on the front wheel rotation speed, and the travel speed calculation processing based on the travel distance and the travel time are started. Since each running state data is updated and stored in each corresponding register in the RAM 26 and is displayed on the liquid crystal display unit 9, for example, when pushing the bicycle 1 before actually riding and starting running. Accordingly, the process of measuring and calculating the traveling time, the traveling distance, and the traveling speed is not started, and it is possible to obtain the accurate traveling time, traveling distance, and traveling speed after actually riding and starting traveling. .

[0042]

As described above, in the first traveling state detecting device of the present invention, when the rotation level of the wheels involved in the actual riding is detected, the traveling state is measured and displayed. become.

Further, in the second running state detecting device of the present invention, when the generator voltage corresponding to the rotation of the wheels accompanying the actual riding is generated, the running state is measured and displayed. become.

Further, in the third traveling state detecting device of the present invention, when the rotation of the wheels involved in the actual riding is detected by, for example, the power generation voltage level of the generator, the traveling time and the traveling distance are , The running speed will be measured and displayed.

Therefore, it is possible to accurately measure and display the running state after the actual riding without starting the measurement of the running state from the time when the start key is operated.

[Brief description of drawings]

FIG. 1 is a side view showing an external configuration of a bicycle equipped with a running state detection device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an external configuration of various signal transmission units and receivers of the traveling state detection device.

FIG. 3 is a block diagram showing a configuration of an electronic circuit of the traveling state detection device.

FIG. 4 is a flowchart showing a traveling mode process in the traveling state detection device.

[Explanation of symbols]

1 ... Bicycle, 2a ... Front wheel, 2b ... Rear wheel, 3 ... Spoke,
4 ... Magnet, 5 ... Front wheel frame, 5a ... Handle, 5b ...
Rear wheel frame, 6 ... transmitter, 7 ... receiver, 8 ... generator,
9 ... Liquid crystal display section, 9a ... Display drive circuit, 10 ... Size input key, 11 ... Start key, 12 ... END key, 13
... Display selection key, 21 ... CPU, 22 ... Key input section, 2
3 ... Receiving part, 24 ... Timer circuit, 25 ... ROM, 26 ...
RAM, 26a ... Timer clock register, 26b ... Display register, 26c ... Tire size register, 26d ... Rotation speed register, 26e ... Running distance register, 26f ... Running speed register, 27 ... Comparator, 28 ... Reference voltage section.

Claims (3)

[Claims] 1. A rotation detecting means for detecting rotation of a wheel for traveling a traveling body, and the traveling body when the rotation detection level of the wheel detected by the rotation detecting means reaches a preset rotation level. A traveling state detecting device comprising: a traveling state measuring means for measuring a traveling state of the traveling body; and a display means for displaying a traveling state of the traveling body measured by the traveling state measuring means. 2. The running state according to claim 1, wherein the rotation detecting means is a generator that generates a voltage in accordance with rotation of a wheel, and the rotation detection level is the generated voltage level. Detection device. 3. The traveling state detecting device according to claim 1, wherein the traveling state measuring means is means for measuring traveling time, traveling distance, and traveling speed of the traveling body.