INTELLIGENT CLEARANCE SONAR SYSTEM

CONSTRUCTION
1. When ultrasonic sensor transmits ultrasonic waves and receives the reflected waves from an obstacle, the buzzer sounds in stages in accordance with the distance to the obstacles.
  
  Figure 1. No. 1 Clearance Warning Buzzer (Front)
  
  Figure 2. No. 2 Clearance Warning Buzzer (Rear)

OPERATION

Depending on the detection distance and the detection area, the sound pattern of the No. 1 clearance warning buzzer will vary.

Detection Area	Detection Distance (mm (in.))		Buzzer Sound Pattern
Detection Area	Detection Distance (mm (in.))		On (msec.)	Off (msec.)
Front Corner	Long	600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0)	200	200
	Middle	450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6)	100	100
	Short	350 +/- 40 or less (13.8 +/- 1.6 or less)	Continuous Sound	0
Front Center	Longest	1000 +/- 100 to 600 +/- 60 (39.4 +/- 3.94 to 23.6 +/- 2.4)	200	500
	Long	600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0)	200	200
	Middle	450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6)	100	100
	Short	350 +/- 40 or less (13.8 +/- 1.6 or less)	Continuous Sound	0

Depending on the detection distance and the detection area, the sound pattern of the No. 2 clearance warning buzzer will vary.

Detection Area	Detection Distance (mm (in.))		Buzzer Sound Pattern
Detection Area	Detection Distance (mm (in.))		On (msec.)	Off (msec.)
Rear Corner	Long	600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0)	200	200
	Middle	450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6)	100	100
	Short	350 +/- 40 or less (13.8 +/- 1.6 or less)	Continuous Sound	0
Rear Center	Longest	1500 +/- 150 to 600 +/- 60 (59.1 +/- 5.9 to 23.6 +/- 2.4)	200	500
	Long	600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0)	200	200
	Middle	450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6)	100	100
	Short	350 +/- 40 or less (13.8 +/- 1.6 or less)	Continuous Sound	0