In order to prevent theft, many riders have installed various locks and anti-theft devices on the car. Do not talk about the locks (there are many "lock kings" on the market), and talk to the riders about electronic remote control (one-way / Two-way).
Cracking and prevention of motorcycle anti-theft alarm lock :
1. The basic principle of the alarm lock (rough solution): The battery Power Supply directly reaches the alarm control box across the ignition key door to supply power to the alarm; the remote control remote control presses the corresponding button to transmit signals of different frequencies, via the alarm After the control box is received and identified, it operates different electronic relays to control the components such as the night light and the alarm horn. When the "Alert" button is pressed, the vibration-sensing trigger in the motorcycle alarm starts to work and the alarm enters the alarm state. When the car encounters vibration, the vibration sensor switch path, the alarm horn work, and the remote control in the owner's hand is alarmed (two-way).
2, crack conditions analysis: (1) as long as the alarm does not ring, you can achieve the purpose of stealing cars. That is to cut off the power supply of the alarm. (2) When the alarm is working, the nighttime running light will be triggered to flash, and the alarm horn will alarm. (3) The alarm is powered by the battery. (4) The night light is powered by the battery. (5) The battery outlet has a fuse.
3, the cracking process: When the alarm works (alarm), carefully open the night light cover (the general riding car is easy to do), remove the light bulb, connect the light bulb with a metal conductor (such as a small screwdriver or wire) The contact of the power supply, then deliberately pats the car body, triggers the alarm to work, and causes the night light to flash. Since the contact for the lamp is short-circuited, the fuse at the outlet of the battery will be burned in an instant, causing power failure and the alarm is lost. The power supply stopped working and the crack was completed. Then hired a force to shake the big cart and pull it away...
4. Precautionary measures: In fact, it is very simple. Connect the power cord that supplies power to the alarm control box directly to the storage battery. Be sure to cross the fuse, so that even if the fuse burns, the night light will stop flashing, and the alarm lock and alarm horn will still be continue working. (Because the alarm horn of the alarm lock is powered by the alarm control box)
1.2 The LED contains chips of two or three colors.
1.3 Colored or colorless, light-emitting diodes of the above colors can also be divided into four types: colored transparent, colorless transparent, colored scattering and colorless scattering. Scattered light emitting diode and LED can be used as indicator light.
Colloid appearance: colorless transparency, colored transparency, colored scattering, colorless scattering, etc;
Straight LED Lamp Beads are divided according to the specifications:
2.1 Shape: round lamp, square lamp, rectangular, surface light emitting tube, side tube, surface mounting microtube, etc.
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2.3 Generally φ 3mm LED is recorded as T-1; hold φ 5mm is recorded as T-1 (3/4); hold φ 4.4mm is recorded as T-1 (1/4).
High directivity: generally, it is a pointed epoxy package, or a package with a metal reflection cavity, without scattering agent. The half-value angle is 5 ° - 20 ° or less, with high directivity, which can be used as local lighting source or combined with light detector to form an automatic detection system;
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