How do I secure a motorcycle?
Security motors are basically making a double switch in addition to the key switch on the motor. The motor can only be switched on if either the key or double switch ON. The double switch is usually placed in a hidden place. Usually under the seat.
Although the method is very simple, but effective enough to dissuade thieves steal your motorcycle. In general, the thief in action in quick time. So, if after he turned the key in a way forced to use the T key, it does not necessarily make the motor can be turned on, then he will choose to cancel the intention of stealing the motorcycle rather than figuring out the secret switch position. Too risky!
However, despite its effectiveness, the method has drawbacks. First, every time we turn off the motor, we also have to turn off the switch a secret. If we forgot to turn off the switch of the secret, then it means that security can become dysfunctional. The second drawback is that the thieves usually observed first motorcycle to be stolen. So, when we're open seat on and off switch secret, the thief could be watching us and know the position of the switch.
To overcome these weaknesses, we can use a relay.
To install a relay network in this type of motorcycle, connect + from the network to point B. Then put the relay switch in parallel with normal partake closed to point C and D. Ground of networks connected to the chassis of the motorcycle.
The sensor can be positioned anywhere up to you. However, the sensor must be completely isolated from the chassis. For example, connect the sensor to one of the screws to the motor body (the plastic) that the screw does not touch the chassis.
Good luck, I hope you avoid motorcycle theft :!:
Security motors are basically making a double switch in addition to the key switch on the motor. The motor can only be switched on if either the key or double switch ON. The double switch is usually placed in a hidden place. Usually under the seat.
Although the method is very simple, but effective enough to dissuade thieves steal your motorcycle. In general, the thief in action in quick time. So, if after he turned the key in a way forced to use the T key, it does not necessarily make the motor can be turned on, then he will choose to cancel the intention of stealing the motorcycle rather than figuring out the secret switch position. Too risky!
However, despite its effectiveness, the method has drawbacks. First, every time we turn off the motor, we also have to turn off the switch a secret. If we forgot to turn off the switch of the secret, then it means that security can become dysfunctional. The second drawback is that the thieves usually observed first motorcycle to be stolen. So, when we're open seat on and off switch secret, the thief could be watching us and know the position of the switch.
To overcome these weaknesses, we can use a relay.
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| relay network scheme |
Relay is enabled using C9013 NPN transistor Q1 . Relay will be active only if Q1 ON . While Q1 will be ON only if the base getting enough current . Q1 base can only get current through R1 and C9012 PNP transistor Q2 . So , Q1 will be ON only if Q2 is also ON . Q2 will be ON if the base get a lower voltage than the emitter is around -0.7 V. A base connected to the collector of Q1 Q2 through R2 . And because Q1 is OFF , then the collectors will be attracted to the power supply voltage through the relay coil . Thus , the base of Q2 will have the same voltage at its emitter . Therefore , Q2 will also be OFF .
The composition of the diode D2 and R4 only make the base voltage of Q2 is pulled toward the supply voltage through a relay and R2 alone , which amount is 1M . If you touch the sensor while the other part of our body that also touches the ground , the base voltage of Q2 will be turned down. Pull toward the supply voltage by R2 is too small compared to the pull down through the hands . This resulted in lower Q2 base of the emitter . Thus , Q2 will be ON . If Q2 is ON , then Q1 will also be ON . And if Q1 is ON , the collector of Q1 will drop to only about 0.3 V only. With the arrangement of D2 and R4 , the base of Q2 will be pulled toward the ground strong enough . Thus , although our hands are removed from the sensor , Q2 will be maintained to ON .
C1 is used to ensure that when you first get the current series , the base voltage of Q2 will be equal to its emitter . Thus , Q2 will be secured in the OFF state until the sensor is touched .
D1 is used to dispose of the voltage generated by the relay coil when the power supply is disconnected . It is useful to prevent damage to the transistor as the voltage .
How do the installation.
There are two types of motorcycle CDI, the "CDI AC" and "DC CDI".
In the motorcycle using the CDI AC, bike locks usually have 4 wires (see right off the back of the lock). 2 cables are normally open switch, and the other 2 wires are normally closed switch. Normally open switch is used to disconnect or connect the electrical circuit to the motor Accu. While normally closed switch is used to allow or prevent CDI Ignition. If both the CDI control cable is connected, the CDI can not be lit. Conversely, if the two wires are disconnected, then the CDI can be lit.
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| motorcycle lock with cdi ac |
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| network installation in cdi ac |
Good luck, I hope you avoid motorcycle theft :!:
