LIDAR

Question 1

1- Care?

Answer 1

• Protect optical lens from contact with any other object.
• only clean the optical lens with optical cleaner.
• Store & transport in protective case.

Question 2

2- Six don’t? (know 4)

Answer 2

1- Don’t aim the laser at the sun.
2- Don’t clean it the with your shirt or hankey.
3- Don’t operate with a large cosine.
4- Don’t operate without proper line of sight.
5- Don’t pan or sweep across target.
5- Don’t operate through any fixed or closed windows.

Question 3

3- What does laser stand for?

Answer 3

L- Light
A- Amplification by
S- Stimulated
E- Emission of
R- Radiation.

Question 4

4- Test failure?

Answer 4

• Error message displayed on the rear panel.
• “help” displayed in the HUD.
• Restart device. Return to REU if error still appears.

Question 5

5- Aiming the reticle?

Answer 5

• Aim at the centre of the number plate or leadlight if motorcycle.
• Reading can be obtained at a greater range if vehicle is receding.

Question 6

6- What 3 functions does the HUD perform?

Answer 6

1- Provide an aiming reticle.
2- Display distance and speed.
3- Tracking alert marked “X” after a 3 second continues tone.

Question 7

7- Lidar will “sleep” in?

Answer 7

2 MINS

Question 8

8- Lidar will shut down in?

Answer 8

15 MINS

Question 9

9- What is poor weather mode?

Answer 9

• Activated by pressing “poor weather” button for 3 seconds.
• Improves device sensitivity.
• Minimum range is set to 60m.
• For fog, dust, snow and rain.

Question 10

10- How is the sweep effect negated?

Answer 10

It is eliminated by having a complete tracking history

Question 11

11- How to record a speed as an event?

Answer 11

Press the “Tick” button.

Question 12

12- How to check Hud alignment?

Answer 12

• Place pro laser in range mode.
  2- listen for beep.
  3- Pull trigger.
  4- Measure distance (25m and 50m)
  5- Move unit left to right across pole, tone should be heard when reticle on pole.
  6- Rotate 90 degrees and perform step 5 again.

Question 13

13- What frequency is used?

Answer 13

330 Thz

Question 14

14- Operating temperature?

Answer 14

-30 to +60 (same as radar).

Question 15

15- What does LiDAR mean?

Answer 15

L- LIght.
D- Detection.
A- And.
R- Ranging.

Question 16

16- What are the 7 steps for a valid speed check. (Know them verbatim)
V
V
P
O
V
M
C

Answer 16

1- Visual observation of the target vehicle & traffic.
2- Visual estimation of the target’s speed.
3- Place aiming reticle on the target vehicle.
4- Obtain a solid tone & speed reading.
5- Verify the estimation of speed & speed reading agree (within limits).
6- Minimum 3 second check.
7- Continue to track visually.

Question 17

17- What is the spread of the Prolaser 4?

Answer 17

15cm at 2438m

Question 18

18- Speed detection range?

Answer 18

8km/h – 320km/h.

Question 19

19- Speed Accuracy?

Answer 19

+ or – 1km/h.

Question 20

20- How is the speed detected?

Answer 20

• Time of flight method.
• Each light pulse is timed from being emitted to reaching a target.
• 200 pulse of light emitted every second.
• 70 pulses must return before a speed is displayed. (0.3 seconds)

Question 21

21- What is the default setting?

Answer 21

• Speed mode.
• 2438m range (600m for NSW police)
• Both directions.

Question 22

21- What is the tolerance when performing start up procedure?

Answer 22

+ or – 20cm.

Question 23

22- Cosine ratio?

Answer 23

10:1

Question 24

23- Beam width?

Answer 24

10cm width per 100m