In Car Tyre Pressure Monitor System

June 18, 2009 - PRLog -- Alert and treatment

   * Leaking alert
     When the sensor measured tire’s pressure change is bigger than 0.2 Bar within 30s, the receiver will alarm for leaking.
     　
   * High temperature alert
     When the tire’s temperature exceeds 75℃, the receiver will alarm for high temperature.
     　
   * Low pressure alert
     When the tire’s pressure is lower than the set value, the receiver will alarm for low pressure.
     　
   * Treatment
     Slow down the vehicle immediately and deal with it properly. If it is low pressure alert, you should charge the tire to the standard pressure
     as quickly as possible. If it is high temperature alert, you should check whether it is because of continuous braking serious over loading or

Sensor Specification:

   * Frequency: 433.92MHz
   * Operating Temperature: -40℃～+125℃
   * Pressure Range: 0～3.6Bar
   * Accuracy for Pressure: ±0.1Bar
   * Accuracy for Temperature: ±3℃
   * Life of the Battery: ≥5 years
   * RF Output Power: 7dB

Receiver Specification:

   * Operating temperature:-40℃～+75℃
   * Receive Sensitivity: -105dBm
   * Input voltage：6V～30V
   * Frequency: 433.92MHz

　

Sensors installation

Dismount the wheel from the car, deflate the gas and remove the rubber tire.
Detach the tire valve, install the corresponding sensor and fix it.
Mount the rubber tire, charge it to the standard pressure, then check the leak condition, and adjust the wheel’s balance.
Fix the wheel to the car.
Install other sensors in turn according to the above steps.
　

Receiver installation

Clean the instrument shelf, use double-face glue to stick the receiver to the right place of rearview mirror or the instrument shelf.
Put the power line across the top of the inside rearview mirror and pull it to reach the interior decoration, put the power line along the fringe of the interior decoration and reach the inside wiring box which is under the left side of the steering wheel, the positive pole connects to the car's key switch, negative pole connects to the earth. You can also use the suitable special tie-in.

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