The sensitivity of the alarm is too high, so you can set the sensitivity level slightly lower. Press the button of the "bell" icon for a long time, and you can hear the setting sensitivity of 5-4-3-2- 1-5 sound periods, and lower the sensitivity.
Some cars leave the factory with "the condition that the charging port is connected to trigger the alarm". This car can only turn off the horn and press mute when charging.
It may be that the anti-interference of the alarm is not good, or the pulse interference of your charger is too great, so you can connect several hundred K resistors in series in the phase line. We know that the current charger is mainly pulse charging. When charging, the battery may be influenced by the charger to output non-constant current DC, and the alarm is affected by it.
Anti-theft devices for electric vehicles are divided into one-way anti-theft and two-way anti-theft.
Intelligent two-way positioning burglar alarm is a patented product newly developed and exclusively produced by Jin Fan, which is not only safe and reliable, but also widely used in automobile, electric vehicle, motorcycle, warehouse, security door and other fields. Has the following powerful functions:
1, two-way alarm: it can alarm in two directions at unlimited distance.
2. Long-distance shouting: You can shout to the vehicle from unlimited distance.
3. Remote monitoring: The vehicle can be monitored remotely at any time.
4.GSM positioning: Vehicles can be positioned by GSM at any time.
The commonly used radio remote control system is generally divided into two parts: transmitting and receiving. The transmitting part is generally divided into two types: remote controller and transmitting module. The remote controller and the remote control module are in use mode, and the remote controller can be used independently as a whole machine, and the external lead wire is provided with a connector; The remote control module is used as an element in the circuit and is applied according to its pin definition. The advantages of using remote control module are seamless connection with application circuit, small size, low price and making the best use of everything, but users must really understand the circuit principle, otherwise it is convenient to use remote control.
Generally speaking, the receiving part is also divided into two types, superheterodyne and super-regenerative receiving mode. Super regenerative demodulation circuit is also called super regenerative detection circuit, which is actually a regenerative detection circuit working in intermittent oscillation state. The superheterodyne demodulation circuit is the same as the superheterodyne radio. It is equipped with a local oscillator circuit to generate an oscillation signal, which is mixed with the received carrier frequency signal to obtain an intermediate frequency (generally 465kHz) signal, and the data signal is demodulated by intermediate frequency amplification and detection. Because the carrier frequency is fixed, its circuit is simpler than that of a radio. The superheterodyne receiver has the advantages of stability, high sensitivity and strong anti-interference ability.