JPH0717445A - Anti-theft device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a bicycle antitheft device capable of preventing theft of a bicycle without involving complicated operations. [Structure] When the owner of the bicycle operates the alarm key after traveling, the process proceeds from SA1 to SA2, and it is determined whether or not an ID code is input (SA2). If the ID code is not input (SA2 is NO), or if the ID code is not the same as the ID code stored in the ID code ROM (SA3 is NO), it is caused by rotation of the front wheels. The traveling pulse that runs (SA
4). Then, while the traveling pulse is not detected and the bicycle 1 is stopped, the loop of SA2 → SA4 → SA2,
Alternatively, the loop of SA2 → SA3 → SA4 → SA5 → SA2 is repeated. At this time, when the stopped bicycle is moved, a traveling pulse is detected, the determination in SA4 is YES, and an alarm sound is generated (SA5).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antitheft device for preventing theft.

[0002]

2. Description of the Related Art Conventionally, what is called a cycle computer is known as a device mounted on a bicycle. This cycle computer is composed of keys for inputting the circumference and target distance of the wheel of the bicycle, and a rotation detection device for detecting the rotation of the wheel, etc. The target speed is set and displayed. Further, the rotation detection device wirelessly transmits a magnet attached to the spokes of the front wheels, a magnetic detection unit fixed to the vehicle body side and located outside the rotational trajectory of the magnet, and a magnetic detection signal from the magnetic detection unit. It is composed of a transmitter and a receiver that receives a signal from the transmitter.

Then, as the bicycle rotates, the front wheels rotate, and when the magnets attached to the spokes pass through the inside of the magnetism detecting portion, the magnetism detecting portion detects the magnetism and the transmitter detects the magnetism. The pulse signal is wirelessly transmitted in synchronization with. Then, the receiver receives the pulse signal, detects the start of the bicycle, counts the passage of the magnet thereafter, and calculates the integrated distance by the "integrated count number × perimeter". Further, the speed (hour speed) is calculated by “(3600 / count cycle) × perimeter”, and the calculated integrated distance and speed are displayed on the display unit provided on the receiver side.

[0004]

However, in such a conventional cycle computer, since it merely displays the accumulated distance and speed and does not help prevent the bicycle from being stolen, it is not suitable for bicycles. It is necessary to attach the lock device of the above to the vehicle body. In such a lock device for a bicycle, it is necessary to project the lock pin when locking and insert it between the spokes of the wheels and then remove the key, and when unlocking, insert the key to retract the lock pin. . Therefore, although the bicycle can be prevented from being stolen by using the lock device, there is a disadvantage that the operation at the time of locking and unlocking becomes complicated.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an antitheft device capable of preventing theft without a complicated operation. .

[0006]

In order to solve the above problems, according to the present invention, an input means for inputting an ID code, the ID code input by the input means and an ID code stored in advance And a detecting means for detecting the rotation of the wheel, the detecting means detects the rotation of the wheel, and the ID by the comparing means.
When the comparison result of the code is not matched, it has an alarm means for generating an alarm sound, and in another configuration of the present invention, the detection means detects the rotation of the wheel, and When the comparison result of the ID code by the collating means does not match, it has a lock means for locking the wheel.

[0007]

In the above structure, when the ID code is inputted from the input means, the collating means collates the inputted ID code with the previously stored ID code, while the detecting means detects this when the wheel rotates. To detect. When the rotation of the wheel is detected, if the ID code collation result by the collating means does not match, it means that the vehicle is moved by an operation of another person other than the person corresponding to the ID code, and the vehicle is stolen. is there. When such a state occurs, the alarm means emits an alarm sound, thereby notifying the occurrence of theft. Further, when the theft occurs, the locking means locks the wheels, so that the vehicle cannot travel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a bicycle 1 to which an embodiment of the present invention is applied.
FIG. 4 is a side view of the bicycle 1 in which the magnets 4 are attached to the spokes 3 of the front wheel 2 of the bicycle 1. On the other hand, a transmitter 6 is fixed to the vehicle body 5 of the bicycle 1 outside the rotation track of the magnet 4, and a receiver 7 is attached to a handle 5a above the transmitter 6. As shown in FIG. 2, a display unit 8 composed of an LCD is provided on the upper surface of the receiver 7, and an alarm key 9, an ID code input key 10, a STOP key 11 and An END key 12 is provided.

FIG. 3 is a circuit diagram of the transmitter 6. The reed switch 13 shown in the figure is normally off and is turned on when the magnet 4 passes through the inside of the transmitter 6 as the front wheel 2 rotates, and the reed switch signal a is detected.
Output to 4. The detection circuit 14 has an oscillation circuit 15 inside.
When the reed switch signal a from the reed switch 13 is received, it is converted into a continuous clock signal b and sent to the base terminal of the NPN type transistor 19 through the resistor 18. A capacitor 20 is connected between the collector terminal and the emitter terminal of the transistor 19, the collector terminal is connected to one end of the electromagnetic induction coil 21, and the emitter terminal is connected to the detection circuit 14.
At the other end of the electromagnetic induction coil 21 and one end of the capacitor 22,
The voltage Vcc is applied through the resistor 23, and the capacitor 2
The other end of 2 is connected to the emitter terminal of the transistor 19. Therefore, the clock signal is
Then, an electromagnetic induction signal is output from the electromagnetic induction coil 21.

FIG. 4 is a block circuit diagram showing the configuration of the receiver 7. In the figure, an electromagnetic induction signal from the electromagnetic induction coil 21 of the transmitter 6 is received by a reception circuit 24 having an electromagnetic induction coil (not shown), and the CPU 2
Sent to 5. The CPU 25 is a program R not shown.
It operates according to the programs stored in the OM and the data stored in the RAM 26. And the CPU 25
The entire operation of the receiver 7 is controlled by the operation of
Is controlled via the display drive circuit 27, and the amplifier 31 that outputs a sound emission signal to the speaker 32 is controlled. An operation signal is input to the CPU 25 from a key input unit 29 for inputting signals from the plurality of keys 9 to 12, and an ID code ROM 30 stores an ID code composed of a plurality of digits. In addition, the transmission circuit 33,
A signal is output to a transponder arranged in a wristwatch described later, and the ID code signal from the transponder is received by the receiving circuit 24. Also, R
The AM 26 is provided with registers 26a and 26b. The tire size of the front wheel 2 is stored in the register 26a with the circumferential length. The register 26b stores "accumulated count number x circumference" based on the passing count value of the magnet 4. The mileage calculated by "long" is stored.

On the other hand, as shown in FIG. 5, the bicycle 1
The wristwatch 50 to be used by the owner of the watch includes a watch body 51 and bands 52, 52 attached to both sides of the watch body. The timepiece main body 51 is provided with an ID code display section 53 and a timepiece display section 54.
A 5-digit ID code is displayed on the code display portion 53.
A transmitter / receiver 55 is provided on the side of the timepiece main body 51. The transmitter / receiver 55 receives a signal from the transmitter circuit 33 shown in FIG. 4, and in response thereto, an internal transponder. The ID code signal output from is transmitted from the transmitter / receiver 55.

In this embodiment having the above structure, C
The PU 25 operates according to the flowchart shown in FIG. That is, when the alarm key 9 is pressed (SA1) and the owner of the bicycle 1 operates the alarm key 9 after traveling, the process proceeds from SA1 to SA2 to determine whether or not the ID code is input (SA2). . That is, when the alarm key 9 is operated, a signal is output from the transmission circuit 33,
In response to this, the ID code is transmitted from the transponder in the wristwatch 50 carried by the owner. Then, when this ID code is received by the receiving circuit 24, the determination in SA2 is YES, and the process proceeds to SA3. S
In A3, the entered ID code and ID code ROM3
The ID code stored in advance in 0 is collated, and it is determined whether or not they match, and if they match, the process proceeds to END.

However, when the ID code is not input (SA2 is NO), or when the ID code is input but does not match the ID code stored in the ID code ROM 30 (SA3 is NO), the traveling pulse is generated. Is detected (SA4). That is, when the front wheel 2 rotates and the magnet 4 passes inside the transmitter 6, the reed switch 13 provided in the transmitter 6 is turned on, and the reed switch signal a is generated as shown in FIG. To be done. Then, the detection circuit 14 outputs a b signal which is a clock signal of a predetermined cycle, and the transistor 19 repeats on / off for a minute time. Thereby, the electromagnetic induction coil 21 of the transmitter 6
From, a resonance pulse which is a resonance pulse (electromagnetic induction signal) is output in a short time immediately after the magnet 4 passes,
At SA4, this traveling pulse c is detected. Then, while the traveling pulse c is not detected and the bicycle 1 is in a stopped state, a loop of SA2 → SA4 → SA2 or SA2
→ The loop of SA3 → SA4 → SA5 → SA2 is repeated.

In a state where any one of the loops is repeated, when the parked bicycle is moved,
A resonance pulse is detected, the determination of SA4 is YES, and an alarm sound is generated (SA5). That is, firstly, when the stationary bicycle 1 is moved without inputting the ID code, secondly, even if the ID code is input,
When a person who does not match the ID code stored in the code ROM 30 moves the parked bicycle 1, an alarm sound is generated from the speaker 32. Therefore, for example, when a person other than the owner of the bicycle 1 moves the bicycle 1 to steal, the alarm sound is generated from the speaker 32 and the theft can be prevented. If the user does not carry the wristwatch 50, the owner of the bicycle 1 can input the ID code by operating the ID code input key 10.

FIG. 7 is a flow chart showing the operation of the second embodiment of the present invention. When the bicycle 1 is stopped, the bicycle waits until the first running pulse (SB1). Then, when the stopped bicycle is run, the front wheels 2 rotate and the first running pulse is detected.
From 1 to SB2, the ID code is detected. Then I
The D code is collated to determine whether there is a match, and if the ID code matches, the process proceeds to SB5 without performing the process of SB4. Therefore, when the legitimate owner runs the bicycle 1, the traveling distance is calculated without generating an alarm sound. That is, the traveling pulse c is input to the CPU 25 at the timing when the front wheel 2 makes one rotation and the magnet 4 passes inside the transmitter 6, that is, every time the front wheel 2 makes one rotation, and the CPU 25 counts this received signal. . Then, in SB5, the traveling distance is calculated by the "integrated count number x circumference".

Next, it is determined whether or not the STOP key 11 has been operated. If the STOP key 11 has not been operated, it is determined whether or not the END key 12 has been operated.
Unless the OP key 11 and the END key 12 are operated, S
The loop of B5 to SA7 is repeated. Then, when the bicycle 1 is stopped and the STOP key 11 is operated in the state where this loop is repeated, for example, when shopping is performed, the determination from SB1 is started. At this time,
When someone other than the legitimate owner moves the bicycle 1, S
When the ID code is collated in the order of B1 → SB2 → SB3, the determination is NO. Therefore, an alarm sound is generated in SB4, which prevents the bicycle 1 from being stolen.

However, when the legitimate owner who finished shopping or the like runs the bicycle 1 again, since the ID code transmitted from the transponder of the wristwatch 50 matches, the process proceeds from SB3 to SB5, and the alarm sound is issued. The traveling distance is calculated without causing Then, for example, when the destination is reached, the END key 12 is operated to end the control shown in this flow.

FIG. 8 shows a main part of the bicycle 1 according to the third embodiment of the present invention, which is a fork part 40 of the vehicle body 5.
The transmitter 6 is attached to the transmitter 6, and the transmitter 6 is provided with a lock pin 61. The lock pin 61 is slidably inserted between a lock position protruding between the spokes 3 of the front wheel 2 and an unlock position retracted from between the spokes 3 as shown in the figure.

FIG. 9 is a block diagram showing the internal structure of the transmitter 6. The magnetic detection sensor 63 detects the magnetism when the magnet 4 shown in FIG.
The signal is input to. Further, the receiving unit 64 receives a lock signal output from the receiver 7 side, which will be described later, and inputs the lock signal to the CPU 62, and the transmitting unit 65 transmits a resonance pulse at the timing when the magnetic detection sensor 63 detects magnetism. The drive unit 66 is composed of an electromagnetic circuit that drives the lock pin 61 to a lock position and an unlock position.

FIG. 10 is a block circuit diagram showing the configuration of the receiver 7 mounted on the upper portion of the vehicle body 1. In the figure, the receiver 71 receives not only the traveling pulse transmitted from the transmitter 65 of the transmitter 6 but also the ID code signal transmitted from the transmitter / receiver 55 of the wristwatch 50 shown in FIG.
Input to the CPU 25. In addition, the transmitter 72 outputs a signal to a transponder arranged in the wristwatch 50. The configuration including the RAM 26, the display drive circuit 27 for driving the display unit 8, the key input unit 29, the ID code ROM 30 and the like is the same as that of the above-described embodiment.

In this embodiment having the above configuration, the CPU 25 in the receiver 7 operates according to the flow chart shown in FIG. That is, the operator waits until the alarm key 9 is pressed (SC1), and when the owner of the bicycle 1 operates the alarm key 9 after traveling, the process proceeds from SC1 to SC2 to determine whether or not the ID code is input (SC2). . That is, when the alarm key 9 is operated, a signal is output from the transmission circuit 33, and the ID code is transmitted from the transponder in the wristwatch 50 carried by the owner in response. When this ID code is received by the receiving circuit 24, the determination of SC2 is YES, and S
Proceed to C3. In SC3, input ID code and ID
The ID code stored in advance in the code ROM 30 is collated to determine whether or not they match, and if they match, an unlock signal is transmitted from the transmitter 65 (SC
6). The lock signal transmitted from the transmitter 65 is received by the receiver 64 of the transmitter 6 shown in FIG.
2 operates the drive unit 66 in response to this. As a result, the lock pin 61 retracts to the unlocked position, and the front wheel 2 becomes rotatable. Therefore, when the person who moves the bicycle 1 is a legitimate owner, the bicycle 1 can be run without any trouble.

However, when the ID code is not input (SC2 is NO), or when the ID code is input and the ID code does not match the ID code stored in the ID code ROM 30 (SC3 is NO), the running is performed. The pulse c is detected (SC4). Then, while the traveling pulse c is not detected and the bicycle 1 is in the stopped state, SC2 →
SC4 → SC2 loop or SC2 → SC3 → S
The loop of C4 → SC5 → SC2 is repeated.

In the state where any one of the loops is repeated, when the stopped bicycle is moved,
When the traveling pulse is detected, the determination in SC4 is YES, and the lock signal is transmitted (SC5). That is, the first
If the stopped bicycle 1 is moved without inputting the ID code, secondly, even if the ID code is input, I
When a person who does not match the ID code stored in the D code ROM 30 moves the parked bicycle 1, the lock signal is transmitted from the transmission unit 65. The lock signal transmitted from the transmitter 65 is received by the receiver 64 of the transmitter 6, and the CPU 62 operates the drive unit 66 in response to this. As a result, the lock pin 61 projects to the lock position, the rotation of the front wheel 2 is blocked, and the vehicle cannot run.
Therefore, for example, when a person other than the owner of the bicycle 1 moves the bicycle 1 to steal, the bicycle 1 becomes incapable of traveling when the lock pin 61 projects to the lock position, thereby preventing theft. You can do it.

FIG. 12 is a flow chart showing the operation of the fourth embodiment of the present invention, which stands by until the first running pulse (SD1). Then, when the stopped bicycle is run, the front wheels 2 rotate, so that the first running pulse is detected and the process proceeds from SD1 to SD2.
Detect D code. Next, the ID code is collated to determine whether there is a match, and if the ID code is matched, the process proceeds to SD6 without performing the process of SD4. That is, when the legitimate owner drives the bicycle 1, the transmitter 65 transmits an unlock signal. As a result, the lock pin 61 retracts to the unlocked position, and the front wheel 2 becomes rotatable. Therefore, when the person who moves the bicycle 1 is a legitimate owner, the bicycle 1 can be run without any trouble.

When the bicycle 1 starts running in this way,
Each time the front wheel 2 makes one rotation and the magnet 4 passes inside the transmitter 6, a running pulse is output, and the running distance is calculated from the integrated count number of this running pulse and the circumference of the front wheel 2 (SD7). . Next, it is determined whether or not the STOP key 11 is operated (SD8). If the STOP key 11 is not operated, it is determined whether or not the END key 12 is operated (SD9), and the STOP key 11 and the END key are operated. The loop of SD7 to SC9 is repeated unless the key 12 is operated.
And in the state where this loop is repeated,
For example, when shopping or the like, the bicycle 1 is stopped and S
When the TOP key 11 is operated, discrimination from SD1 is started.

When a person other than the legitimate owner moves the stopped bicycle 1, the first traveling pulse is detected. Therefore, when the ID code is collated in the order of SD1 → SD2 → SD3, the determination is NO. Therefore, the lock signal is transmitted from the transmission unit 65 in SD4. The lock signal transmitted from the transmitter 65 is received by the receiver 64 of the transmitter 6, and the drive unit 66 operates accordingly. As a result, the lock pin 61 projects to the lock position, the rotation of the front wheel 2 is blocked, and the vehicle cannot run. Therefore, for example, when a person other than the owner of the bicycle 1 moves the bicycle 1 to steal, the bicycle 1 becomes unable to run when the lock pin 61 projects to the lock position, thereby preventing theft. You can do it.

When the lock signal is transmitted, the process waits until a fixed time elapses (SD5), and when the fixed time elapses, the process from SD2 is executed again. At this time, the loop of SD2 to SD5 is repeated unless the matching of the detected ID code matches. Therefore,
During that time, the lock pin 61 is maintained in a state of protruding to the lock position, the bicycle 1 cannot run, and movement of the bicycle 1 is blocked.

However, when a legitimate owner who has finished shopping or the like tries to run the bicycle 1 again, the ID code collation is matched, and the process proceeds from SD3 to SD6. After being transmitted, the bicycle 1 is ready to run. Continue to ST as described above
Unless the OP key 11 and the END key 12 are operated, S
The loop of D7 to SC9 is repeated. Then, when the END key 12 is operated in the state where this loop is repeated, the control shown in this flow ends.

[0029]

As described above, according to the present invention, when the rotation of the wheel is detected and the ID code comparison results do not match, an alarm sound is generated or the wheel is locked. Therefore, it is possible to prevent theft without complicated operations such as locking operation and unlocking operation.

[Brief description of drawings]

FIG. 1 is a side view of a bicycle to which an embodiment of the present invention is applied.

FIG. 2 is an external front view of the transmitter and the receiver according to the embodiment.

FIG. 3 is a circuit diagram showing a configuration of a transmitter.

FIG. 4 is a block diagram showing a configuration of a receiver.

FIG. 5 is an external perspective view of a wristwatch used in each embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 8 is a diagram showing a mounting state of a transmitter in the third and fourth embodiments of the present invention.

FIG. 9 is a block diagram showing a configuration of a receiver in the embodiment.

FIG. 10 is a block diagram showing a configuration of a receiver in the embodiment.

FIG. 11 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of the fourth embodiment of the present invention.

[Explanation of symbols]

 1 Bicycle 4 Magnet 6 Transmitter 7 Receiver 8 Display 25 CPU 26 RAM 30 ID Code ROM 61 Lock Pin

Claims (2)

[Claims] 1. An input unit for inputting an ID code, a collating unit for collating the ID code input by the input unit with an ID code stored in advance, and a detecting unit for detecting wheel rotation. An alarming means for generating an alarm sound when the rotation of the wheel is detected by the detecting means and the ID code comparison result by the comparing means is inconsistent. 2. An input unit for inputting an ID code, a collating unit for collating the ID code input by the input unit with an ID code stored in advance, and a detecting unit for detecting rotation of wheels. Rotation of the wheel is detected by the detecting means, and lock means for locking the wheel when the collation result of the ID code by the collating means is inconsistent, the antitheft device.