Alarm Output Specification classified by distance between sensors

Condition logic according to priority of alarm level is as shown below. (the identical sensor)

Fig 1: System Operation Spec (With R Gear Releasing)

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* α value definition

1. Low priority sensor off: α = 0ms
2. Low priority sensor is 1st warning level: α < 340ms
3. Low priority sensor is 2nd warning level: α < 170ms

* β value definition

1. Low priority sensor is 1st warning level: β = 1700ms
2. Low priority sensor is 2nd warning level: β = 1700ms
3. Low priority sensor is 3rd warning level: β = 700ms

Alarm control by sensing distance is as shown below

1. First warning area (61cm ~ 120cm)
   Fig 2: Buzzer Output Blinking Pattern - First Warning Area

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2. Second warning area (31cm ~ 60cm)
   Fig 3: Buzzer Output Blinking Pattern - Second Warning Area

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3. Third warning area (less than 30cm)
   Fig 4: Buzzer Output Blinking Pattern - Third Warning Area

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4. Period of fault alarm
   1. With visible display
      Fig 5: Fault Alarm Indicator Blinking Pattern (With Visible Display)

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   2. Without visible display

      When the system has error channel in initial time, sensor channel let us know the location of error via hearing device. (Three times for each sensor)

      Fig 6: Fault Alarm Indicator Blinking Pattern (Without Visible Display)

      Courtesy of KIA MOTORS AMERICA, INC.
      NOTE:

      1. Time tolerance of the above waveform: Time ± 10%
      2. At nearer distance than 30cm, detection may not occur.
      3. Alarm will be generated with vehicle reversing speed 10km/h or less.
      4. For moving target, maximum operation speed shall be target approach speed of 10km/h.
      5. When the vehicle or the target is moving, sequential alarm generation or effective alarm may be failed.
      6. False alarm, or failure of the alarm to trigger may occur in the following conditions.
         • Irregular road surface, gravel road, reversing toward grass.
         • Horn, motor cycle engine noise, large vehicle air brake, or other object generating ultrasonic wave is near.
         • When a wireless transmitter is used near to the sensor.
         • Dirt on the sensor.
         • Sequential alarm may not occur due to the reversing speed or the target shape.