JPH07147701A - Travelling-state detector - Google Patents

Abstract

PURPOSE:To save power while detecting the accurate state of travelling by precisely discriminating the state of the travelling and the state of the stoppage of a travelling body. CONSTITUTION:When a bicycle begins to travel, the revolution of a magnet 14 mounted on a front wheel is detected by a reed switch 30, and a reed switch signal (a) is output to a detecting circuit 31. The detecting circuit 31 outputs a specified clock signal (b) to the base terminal of a transistor 34 to switch the transistor 34, and resonates the transistor 34 by an LC oscillation circuit. The detecting circuit 31 outputs a stoppage control signal (e) to a switching element 37 when a travelling body is stopped to turn the switching element 37 on, thus adding the capacity of a capacitor 36, then lowering resonance frequency and reducing the pulse number of an electromagnetic induction signal radiated from an electromagnetic induction coil 38. Whether or not the travelling body is under stoppage or under travelling can be discriminated easily and accurately only by counting the number of receiving pulses on the receiving side of the electromagnetic induction signal.

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 traveling body by detecting rotation of wheels of the traveling body.

[0002]

2. Description of the Related Art Conventionally, there are bicycles, cars, trains and the like as traveling bodies which rotate wheels to travel on roads and rails. If it is called a cycle computer)
It has been known.

For example, in the case of the above-mentioned cycle computer, a magnet is attached to the spoke portion of the front wheel as a rotation detecting portion for detecting the rotation of the bicycle wheel, and the magnet rotates on the fork leg outside the rotation track of the magnet. The magnetic detection part for detecting is fixed. For example, a reed switch or the like is used in the conventional magnetic detection unit, which is normally in an off state, but it is turned on each time the magnet passes near the reed switch as the wheel rotates, and the wheel is One magnetic detection signal (reed switch signal) is output for each rotation, and the number of rotations of the wheel per unit time is detected. The cycle computer multiplies the detected wheel rotation speed by the wheel circumference that has been input in advance by a computing unit such as a CPU to calculate the traveling distance, speed, etc. of the bicycle, and uses this to calculate a liquid crystal display device (LCD). ) Is displayed on the display.

In such a running state detecting device, it is necessary to supply power to a rotation detecting section for detecting the rotation of the wheels of the running body, an arithmetic processing section for calculating the running state, etc. Therefore, it is desirable to turn off the power.

Therefore, in the conventional running state detecting device,
The driver manually turned on / off the power switch.

Further, since the conventional running state detecting device does not have means for detecting in real time whether the running body is running or stopped, if the running body stops during running, the running state (for example, the average running speed). There was a case that an error occurred in the calculation result of (, traveling time, etc.).

[0007]

In such a traveling state detecting device, it is desirable to supply power only during traveling in order to save power in the power supply section. However, in the past, since the driver manually turned on and off the power supply unit, it took a lot of time and labor, and the power wasted and the running state could not be detected due to forgetting to turn it off or forgetting to turn it on. Cause

Further, since the conventional running state detecting device does not have a means for correctly determining whether the running body is running or stopped, the running body must be stopped when the running state is arithmetically processed. However, there is a problem in that it is not possible to remove an error factor of the running state caused by the above, and for example, it is not possible to correctly calculate the average running speed and running time of the running body.

Therefore, according to the present invention, the traveling state and the stopped state of the traveling body are accurately discriminated, and the power source is automatically turned on / off in accordance with the discrimination to save power and detect the correct traveling state. It is an object of the present invention to provide a traveling state detection device that can perform the operation.

[0010]

In order to solve the above-mentioned problems, a traveling state detecting device according to claim 1 detects rotation of a wheel of a traveling body and transmits a rotation detection signal, and a rotation detecting means. A running state detecting device comprising: a computing unit that computes various traveling states of a traveling body based on a rotation detection signal transmitted from the detecting unit; and a display unit that displays the traveling state calculated by the computing unit. When the traveling detection means determines whether the traveling body is traveling or stopped based on the rotation detection signal of the rotation detection means, and when the traveling detection means determines that the traveling body is stopped, the power supply is stopped and the traveling travels. If the detection means determines that the traveling object is traveling,
By including the control means for starting the power supply,
To achieve the above objectives.

According to a second aspect of the present invention, there is provided a traveling state detecting device, wherein the traveling detecting means according to the first aspect includes a signal input discriminating circuit for discriminating presence / absence of a wheel rotation detection signal from the rotation detecting means. A timer circuit that measures the elapse of a predetermined time from the last input of the rotation detection signal, and the case where the rotation detection signal is input before the elapse of the predetermined time in this timer circuit is considered to be running of the traveling object, and the predetermined time has elapsed. The above object is achieved by including a running / stopping determination circuit that determines that the traveling body is stopped.

According to a third aspect of the present invention, in the traveling state detecting device, the rotation detecting means and the calculating means are separately arranged, and the rotation detecting signal from the rotation detecting means is wirelessly transmitted through a transmitter, and the calculating means. A traveling state detection device that receives and arithmetically processes by a receiver on the side, wherein the traveling detection means is provided on the transmitter side and determines whether or not a rotation detection signal of a wheel from the rotation detection means is input. A signal input determination circuit, a timer circuit that measures the elapse of a predetermined time from the last input of the rotation detection signal, and a stop signal that outputs a stop signal different from that when the predetermined time elapses in the timer circuit A signal output unit, and the receiver side determines that the traveling body is stopped when the stop signal is detected, and determines that the traveling body is traveling when the rotation detection signal is detected.
The provision of the stop determination circuit achieves the above object.

According to a fourth aspect of the present invention, there is provided a traveling state detecting device in which the control means according to the first, second or third aspect is based on whether the traveling means is traveling or stopped of the traveling body which is discriminated by the traveling detecting means. The above object is achieved by calculating the running state of the running body.

[0014]

According to the present invention, the traveling detection means detects whether the traveling body is traveling or stopped.

In the traveling detecting means, the signal input discriminating circuit discriminates the presence / absence of the rotation detecting signal, and the timer circuit measures the elapse of a predetermined time from the last input of the rotating detecting signal to detect the traveling / running. There is a stop determination circuit which determines that the traveling body is in a stop state when the timer circuit has timed up, and determines that the vehicle is traveling when a rotation detection signal is input and the timer circuit does not time up.

In the other travel detecting means, the signal input discriminating circuit discriminates whether or not the rotation detecting signal is input, and the timer circuit measures the elapse of a predetermined time from the last input of the rotation detecting signal. When the timer circuit times out, a stop signal is output from the stop signal output means, and the running / reception on the receiving side is performed.
In some cases, when the stop determination circuit detects the stop signal, it is determined that the vehicle is stopped, and when the rotation detection signal is detected, it is determined that the vehicle is traveling.

As described above, by using the traveling detecting means, it is possible to accurately detect whether the traveling body is traveling or stopped.

Further, based on the detection result of the running / stopped state of the running body, the control means stops the power supply to each part except the rotation detecting means and the running detecting means while the running body is stopped to save power. The power supply is restarted at the start of traveling so that the traveling state can be detected.

In the invention according to claim 4, the control means reflects the detection result of whether the traveling body is traveling or stopped by the traveling detection means in the calculation of the traveling state of the traveling body. It is possible to correctly calculate the traveling state such as the traveling speed and the traveling time.

[0020]

EXAMPLES The present invention will be described below based on examples.

[First Embodiment] FIGS. 1 to 9 are views for explaining a first embodiment of the present invention. Here, a cycle computer for detecting a running state of a bicycle will be described as an example.

First, the structure will be described.

FIG. 1 is a side view of a bicycle to which the cycle computer 18 according to the first embodiment is applied. In FIG. 1, in the spoke 13 portion of the front wheel 12 of the bicycle 11,
A magnet 14 is attached. On the other hand, a rotation detector 16 is fixed to the fork leg portion of the body 15 of the bicycle 11 outside the rotation track of the magnet 14. Then, on the handle 15a above the rotation detecting unit 16, the traveling state such as the traveling distance and the traveling speed is calculated based on the rotation detection signal of the wheel detected by the rotation detecting unit 16, and the calculation result is displayed. The operation display unit 17 is mounted.

As described above, the cycle computer 18 for detecting and displaying the running state of the bicycle has the rotation detecting unit 16
And the operation display unit 17, and the rotation detection unit 16
The rotation detection signal is wirelessly transmitted from the transmitter to the receiver of the operation display unit 17.

FIG. 2 shows the cycle computer 18 of FIG.
3 is an external view of the rotation detection unit 16 and the operation display unit 17.

In FIG. 2, the rotation detection signal generated by the rotation detecting unit 16 is displayed by the transmitter of the rotation detecting unit 16 as an operation display when the magnet 14 rotates in the direction of the arrow as the wheel is running. It is wirelessly transmitted to the receiver of the section 17.
Then, in the operation display unit 17, a calculation processing unit (not shown) performs calculation processing of the traveling state, and a liquid crystal display device (LCD)
The running state is displayed on 20.

As shown in FIG. 2, the operation display unit 17
The data input key 21, the start key 22, and the E key for inputting the weight of the bicycle or the weight of the driver are provided around the circumference of the
An ND key 23, an input key 24 for inputting the circumference of the front wheel and other data are provided.

Next, FIG. 3 is a diagram showing a circuit example of the rotation detecting section 16 according to the first embodiment. In FIG. 3, the reed switch 30 is turned on when the magnet 14 approaches, and outputs the reed switch signal a to the detection circuit 31.
When the magnet 14 is separated by a predetermined distance or more, the magnet 14 is turned off and the reed switch signal a is not output to the detection circuit 31.

The detection circuit 31 includes an oscillation circuit 32 therein, and when the reed switch signal a from the reed switch 30 is input, the detection circuit 31 converts the reed switch signal a into a continuous clock signal b, and an NPN type via a resistor 33. Is transmitted to the base terminal of the transistor 34.

Capacitors 35 and 36 are connected between the collector terminal and the emitter terminal of the transistor 34, respectively, and a switching element 37 is provided between the capacitor 36 and the emitter terminal of the transistor 34. The collector terminal of the transistor 34 is connected to one end of the electromagnetic induction coil 38, and the emitter terminal is connected to the detection circuit 31.

The electromagnetic induction coil 38 includes the transistor 34.
The switching operation and the LC oscillating circuit composed of the capacitors 35, 36, 39 and the like cause a resonance phenomenon to radiate an electromagnetic induction signal. The other end of the electromagnetic induction coil 38 and one end of the capacitor 39 are connected to the voltage V via the resistor 40.
cc is applied, and the other end of the capacitor 39 is connected to the emitter terminal of the transistor 34. In this way, as shown in FIG. 3, the portion radiating the electromagnetic induction signal has the transmission frequency (f).

[0032]

[Equation 1] Since the capacitor 36 for controlling the switching element 3 is added, the detection circuit 31 outputs the stop control signal e.
By closing 7, a pulse with a frequency different from the rotation detection signal is transmitted. In the present specification, a pulse transmitted during a stop is referred to as a stop signal, and a pulse transmitted during traveling is referred to as a rotation detection signal. One of the stop signal and the rotation detection signal has an integral multiple of the other frequency.

FIG. 4 is a diagram showing a circuit configuration example of the detection circuit 31 shown in FIG.

In FIG. 4, the one-shot circuit 41 is
When the reed switch signal a, which is the trigger of the traveling signal, is input, a one-shot pulse is output and input to the input terminal of the AND gate 42.

When the enable 1 signal which is a one-shot pulse and the clock signal from the oscillation circuit 32 are input to the AND gate 42, the AND signal outputs the clock signal while the enable 1 signal is input. To be done.

The timer circuit 43 starts the timer with the above one-shot pulse as a trigger, and the subtraction process is performed until a predetermined time is reached. This timer circuit 43 is
When the next one-shot pulse by the rotation detection signal is input before the timer times out, the count value of the timer circuit 43 returns to the initial value, and the subtraction process from the predetermined time is started again. For this reason, the timer does not time up while the traveling object is traveling, so that the timer circuit 43 enables 2
No signal is output.

The AND gate 44 receives the clock signal from the oscillation circuit 32 and the enable 2 signal from the timer circuit 43, and outputs the clock signal as an AND output while the enable 2 signal is being input.

The NOR gate 45 receives the AND outputs of both AND gates 42 and 44 described above. The output of the NOR gate 45 is "L" when at least one of the AND gates 42 and 44 is "H", and only when the outputs of the AND gates 42 and 44 are "L". "H" is output.

That is, as for the output of the NOR gate 45 while the traveling body is traveling, the output of the AND gate 44 is always "L", and the clock signal is output from the oscillation circuit 32 only while the enable 1 signal is input from the AND gate 42. Is output. Therefore, since "H" is output only when the two inputs are "L", a pulse having a phase opposite to that of the clock signal output from the AND gate 42 is output.

As for the output of the NOR gate 45 while the traveling body is stopped, the output of the AND gate 42 is always "L".
Therefore, the oscillation circuit 32 outputs the clock signal only while the enable 2 signal is input from the AND gate 44. Therefore, a pulse having a phase opposite to that of the clock signal output from the AND gate 44 is output. Further, while the traveling body is stopped, the enable circuit 2 for further turning on the switching element 37 shown in FIG.
A signal (stop control signal e) is output.

Therefore, as shown in FIG.
The same pulse waveform is output as the clock signal b from the same regardless of whether the bicycle is running or stopped. However, the stop control signal e output from the timer circuit 43
Is the switching element 37 only when the traveling body is stopped.
To turn on the capacitor 36 in the LC oscillator circuit.
Is added to decrease the oscillation frequency, and the number of pulses of the stop signal during stop is smaller than the number of pulses of the rotation detection signal during running radiated from the electromagnetic induction coil 38.

The rotation detection unit 16 is configured as described above, and the rotation detection signal indicating that the vehicle is running and the stop signal indicating that the vehicle is stopped have their own number of pulses and are wirelessly transmitted to the operation display unit 17. To be done.

Next, the configuration of the operation display unit 17 which receives the wirelessly transmitted rotation detection signal and displays the result of the arithmetic processing of the running state will be described.

FIG. 5 shows the operation display unit 17 according to the first embodiment.
It is a circuit diagram of. The electromagnetic induction signal radiated from the electromagnetic induction coil 38 of the rotation detector 16 shown in FIG. 3 is received by the electromagnetic induction coil (not shown) provided in the receiver 50 of FIG. 5, and sent to the CPU 51.

The CPU 51 has a program ROM (Read O
nly Memory) 52 and RAM (Random Access Memory) 53
Is operated in accordance with a program stored in the program ROM 52, data stored in the RAM 53, and the like, and controls the entire operation display unit 17 and a liquid crystal display device (through a display drive circuit 56). LCD: Liquid Crystal Display)
Display control of 7 is performed. In particular, the CPU 51 receives the electromagnetic induction signal (rotation detection signal or stop signal) radiated from the rotation detection unit 16 and counts the number of pulses thereof, so that the traveling body is in the traveling state or in the stopped state. Determine whether. Then, according to the determination result, the power supply from the power supply unit 58 is stopped or restarted to save power. Further, when calculating the running state, for example, when calculating the average running speed, running time, etc. in which the calculation result has an error depending on whether the traveling body is running or stopped, the calculation process based on the above determination result. By doing
Accurate running conditions can be obtained. Further, the CPU 51 executes processing based on various signals input from the key input unit 54 including the plurality of keys 21 to 24 described above.

Program data for the CPU 51 to control the cycle computer 18 is stored in the ROM 52.

The RAM 53 is the cycle computer 18
It stores necessary input data and various parameters that are the basis for calculating the running state of the vehicle.

The clock circuit 55 is composed of a crystal oscillator and a frequency divider circuit, and divides a clock signal of a constant cycle by the frequency divider circuit to output a clock signal to the CPU 51. CP
The U51 receives this clock signal and manages the current date and current time.

The power supply section 58 supplies electric power to each section of the operation display section 17.

FIG. 6 is a diagram showing an example of a circuit configuration around the power supply unit 58 according to the first embodiment. As shown in FIG. 6, the power supply unit 58 is directly connected to the receiving unit 50 and the CPU 51 to constantly supply power, but other units (for example, the display drive circuit 56 and the display unit 57 in FIG. 5). Is configured to be selectively supplied with power via the transistor 60. The switching of the transistor 60 is turned on only when the CPU 51 detects that the bicycle is running, and is turned off when the bicycle is stopped, so that the power supply state is automatically controlled according to the running state. , Power saving can be achieved.

FIGS. 7 and 8 are timing charts showing signal waveforms and operating states of the respective parts shown in FIGS. 3 and 4 described above.

Cycle computer 18 of the first embodiment
Is configured as described above, and its operation will be described below with reference to FIG.
A description will be given based on the flowchart.

First, when the driver gets on the bicycle 11 shown in FIG.
The magnet 14 fixed to the second spoke 13 rotates.

As shown in FIG. 3, the reed switch 30 provided in the rotation detecting section 16 is turned on / off every time the wheel makes one rotation and the magnet 14 passes through to generate the reed switch signal a. (See FIG. 7A).

In the detection circuit 31, as shown in FIG. 4, while the enable 1 signal is output from the one-shot circuit 41 based on the reed switch signal a input while the bicycle is running, the clock from the oscillation circuit 32 is output. A signal is output from the AND gate 42 (see FIGS. 7A and 7B).

Enable 1 input to the timer circuit 43
The signal initializes the circuit operation of the timer as shown in FIG. As a result, the timer circuit 43 newly starts the process of subtracting the elapsed time from the preset predetermined time.

While the bicycle is running, the enable 1 signal is input to the timer circuit 43 every time the wheel makes one revolution.
As shown in FIG. 7D, the timer circuit 43 is initialized before the time is up, and the enable 2 signal is not output.

However, when the bicycle shifts from running to a stopped state, the enable 1 signal output from the one-shot circuit 41 is not input to the timer circuit 43,
When the predetermined time has elapsed, the time is up (see FIG. 8B).

When the timer circuit 43 times out, the timer circuit 43 outputs an enable 2 signal, which turns on the switching element 37 of FIG. 3 as a stop control signal e (see FIG. 8C) of the detection circuit 31 to turn on the capacitor 36. By activating, the capacitance of the capacitor 36 in the LC oscillating circuit is added to lower the oscillation frequency, and the electromagnetic induction coil 3
The number of pulses of the stop signal at the time of stop is smaller than the number of rotation detection signals at the time of traveling emitted from 8.

Next, the electromagnetic induction signal radiated from the electromagnetic induction coil 38 of the rotation detector 16 of FIG. 3 is pulsed by the electromagnetic induction coil (not shown) of the receiver 50 of FIG. 5, as shown in the flowchart of FIG. It is received as a signal (step S100).

The CPU 51 of the rotation detecting section 16 counts the number of received pulses. For example, in the present embodiment, the case where the number of received pulses is 18 is recognized as running, and the number of received pulses is 15 which is smaller than that. The case is recognized as being stopped (step S101).

When the number of received pulses is 15,
Since the bicycle is stopped and the running state is not detected,
The power supply is stopped except for the receiving unit 50 and the CPU 51 of the operation display unit 17 (step S102). Therefore, power is not consumed wastefully and power saving can be achieved.

When the number of received pulses is 18 in step S101, the CPU 51 recognizes that the bicycle is in the running state, calculates the running state, and displays it in each part of the operation display unit 17. The power is turned on so that the power is supplied (step S103). Therefore, since the running state calculation process and the display thereof can be immediately performed when the bicycle shifts from the stopped state to the running state, there is no problem.

Then, in this state, a calculation process for calculating the running state is performed (step S104). When calculating the running state, for example, when calculating the average running speed, running time, etc. in which the calculation result has an error depending on whether the running body is running or stopped, the running process is performed based on the running / stopped state. By doing so, an accurate running state can be obtained.

Then, in step S105, the main power source of the cycle computer is turned off when the rider of the bicycle finishes running.

In the case of a temporary stop without turning off the main power source, the process returns to step S100 and the processes of steps S101 to S104 are repeated.

As described above, in the traveling state detecting device according to the first embodiment, the rotation detecting section 16 emits the electromagnetic induction signal having a different pulse number depending on whether the traveling body is traveling or stopped. Therefore, the operation display unit 17 that receives this can easily determine in real time whether the traveling body is running or stopped by counting the number of received pulses with the CPU 51.

Based on the result of this determination, the power supply to the components that are not used while the traveling body is stopped is turned off, or the power supply is restarted at the start of traveling to save power. Can be achieved.

Further, by reflecting the determination result of the running / stopped state of the running body in the calculation of the running state, the running state such as the average running speed or running time can be accurately calculated.

[Second Embodiment] FIGS. 10 and 11 are views for explaining a traveling state detecting device according to a second embodiment of the present invention. FIG. 10 is a timing chart showing the power supply states of the transmission side and the reception side and the traveling signal waveforms transmitted,
FIG. 11 is a flowchart explaining the operation of the second embodiment.

In the second embodiment, both the case where the rotation detecting section and the operation display section are integrated and the case where they are separated can be considered.
Here, the case where they are separated will be described as an example.

Therefore, the rotation detector of the second embodiment has the same structure as the conventional one, and transmits a rotation detection signal (in the second embodiment, referred to as a travel signal) while traveling and the travel signal is transmitted while stopped. Not sent.

The configuration of the operation display section will be described with reference to the configuration block diagrams of FIGS. 5 and 6 of the first embodiment.
The description of each part in FIG. 5 and FIG. 6 is substantially the same as the above description, and is omitted, and only different components will be described.

That is, as shown in FIG. 5, the CPU 51 of the second embodiment constantly monitors the travel signal received by the receiving unit 50 after the start of travel (step S200). Then, as shown in FIG. 10, when the start of the temporary stop state in which the last traveling signal is received and the signal does not come is the time point X in the figure (step S201), the operation display unit 17 starts from here.
Whether or not a predetermined time (here, 1 minute) has elapsed is checked by the clock circuit 55 (step S202).

When one minute has elapsed, the CPU 51 of the operation display unit (reception side) 17 turns off the transistor 60 shown in FIG. 6 at the time of Y in FIG. 10 to move to each unit except the reception unit 50 and the CPU 51. The power supply of is turned off (step S203).

Then, the receiving section 50 and the CPU 51 monitor again whether or not there is a pulse input of the traveling signal (step S204).

If a pulse input is detected at time Z in FIG. 10, the CPU 51 turns on the transistor 60 in FIG.
The N operation is performed, and the power supply on the receiving side is restarted as shown in FIG. 10 (step S205).

Next, the CPU 51 again monitors whether or not the vehicle is in the temporary stop state, and if the vehicle is in the temporary stop state, the process returns to the step S202, and if the traveling is not a temporary stop (step S207), It is checked whether the main power source is turned off (step S208).

If the main power source is forgotten to be turned off even after the traveling is completed, the process returns to the step S202 to wait for a part of the power source in the temporarily stopped state.

As described above, the traveling state detecting apparatus of the second embodiment monitors whether or not the traveling signal is received only on the receiving side of the operation display unit 17 to discriminate whether the vehicle is traveling or stopped, and the discrimination is made. Since the power supply is controlled based on the result, power saving can be achieved with a simple configuration.

Further, in the second embodiment, the determination result of whether the vehicle is running or stopped is used only for the control of power supply, but it is also used for the calculation of the running state in the same manner as the first embodiment. It can also be used to calculate running time, average running speed, etc.

[0082]

According to the invention described in claim 1, 2 or 3, since the traveling detecting means is used, whether the traveling body is traveling or stopped is accurately detected in real time and traveling is performed by the control means. Since the power supply to each unit except the rotation detecting unit and the running detecting unit is stopped while the body is stopped, power saving can be achieved. Further, at the start of traveling, power supply is automatically restarted, and the traveling state can be detected.

According to the invention of claim 4, the control means reflects the detection result of whether the traveling body is traveling or stopped by the traveling detection means in the calculation of the traveling state of the traveling body. For example, it is possible to correctly calculate the traveling state such as the average traveling speed and the traveling time.

[Brief description of drawings]

FIG. 1 is a side view of a bicycle to which a cycle computer according to a first embodiment is applied.

FIG. 2 is an external view of a rotation detection unit and an operation display unit of the cycle computer shown in FIG.

FIG. 3 is a diagram illustrating a circuit example of a rotation detection unit according to the first embodiment.

FIG. 4 is a diagram showing a circuit configuration example of a detection circuit shown in FIG.

FIG. 5 is a circuit diagram of an operation display unit according to the first embodiment.

FIG. 6 is a diagram illustrating a circuit configuration example around a power supply unit according to the first embodiment.

FIG. 7 is a timing chart showing signal waveforms and operating states of the respective units of FIGS. 3 and 4.

FIG. 8 is a timing chart showing signal waveforms and operating states of the respective units of FIGS. 3 and 4.

FIG. 9 is a flowchart illustrating an operation of the cycle computer according to the first embodiment.

FIG. 10 is a timing chart showing the power supply states of the transmitting side and the receiving side and the traveling signal waveforms transmitted.

FIG. 11 is a flowchart illustrating the operation of the second embodiment.

[Explanation of symbols]

 11 Bicycle 12 Front Wheel 13 Spoke 14 Magnet 15 Car Body 15a Handle 16 Rotation Detection Section 17 Operation Display Section 18 Cycle Computer 19 Rotation Detection Coil 30 Reed Switch 31 Detection Circuit 32 Oscillation Circuit 34 Transistor 35, 36, 39 Capacitor 37 Switching Element 38 Electromagnetic Induction Coil 41 One-shot circuit 42, 44 AND gate 43 Timer circuit 45 NAND gate 50 Receiver 51 CPU 52 ROM 53 RAM 54 Key input unit 55 Timekeeping circuit 56 Display drive circuit 57 Display unit 58 Power supply unit 60 Transistor

Claims (4)

[Claims] 1. A rotation detecting means for detecting rotation of a wheel of a traveling body and transmitting a rotation detecting signal, and a calculation for calculating various traveling states of the traveling body based on the rotation detecting signal transmitted from the rotation detecting means. And a display unit for displaying the running state calculated by the calculating unit, wherein the running state detecting device detects whether the running body is running or stopped based on the rotation detection signal of the rotation detecting unit. And a control means for stopping power supply when the traveling detection means determines that the traveling body is stopped, and for starting power supply when the traveling detection means determines that the traveling body is traveling. A traveling state detection device comprising: 2. The traveling detection means includes a signal input determination circuit for determining whether or not a rotation detection signal of a wheel is input from the rotation detection means, and a predetermined time has elapsed from the last input of the rotation detection signal. A timer circuit for measuring the speed of the vehicle and a case where the rotation detection signal is input before the predetermined time has elapsed in the timer circuit is determined to be the traveling of the traveling object, and when the predetermined time has elapsed, it is determined that the traveling object is in the stopped state. The traveling state detection device according to claim 1, further comprising: a determination circuit. 3. The rotation detecting means and the calculating means are separately arranged, and a rotation detecting signal from the rotation detecting means is wirelessly transmitted via a transmitter, and is received by a receiver on the side of the calculating means for calculation. A traveling state detection device for processing, wherein the traveling detection means is provided on the transmitter side, and a signal input determination circuit for determining whether or not a rotation detection signal of a wheel from the rotation detection means is input; A timer circuit for measuring the elapse of a predetermined time from the last input of the detection signal; and a stop signal output means for outputting a stop signal different from that during traveling when the predetermined time has elapsed in the timer circuit, The receiver side is provided with a running / stopping determination circuit that determines that the traveling body is stopped when the stop signal is detected and that the traveling body is running when the rotation detection signal is detected. Note 1 Of the running state detection device. 4. The control means causes the computing means to compute the traveling state of the traveling body based on whether the traveling body is traveling or stopped as determined by the traveling detection means. Item 7. The running state detection device according to item 1 or 2.