SANKOE SKD-2D Laser Distance Sensor User Manual

SANKOE SKD-2D Laser Distance Sensor User Manual

Please read the user manual carefully before using our products and avoid looking directly at the laser during operation.

Overviews

SANKOE.LTD is a professional manufacturer from China who provides high performance laser distance sensor and customized service. www.top1sensor.com is our official website for online business.
Laser distance sensor SKD-100D is a new kind of our laser distance measuring instrument. It is characterized by high accuracy, long detection range, fast measuring speed and competitive cost. The product has been widely used in many fields including robot& drones positioning, tunnel & elevator detection and other industrial measurement applications.
SKD-100 Laser distance sensor

Features

1. Long detection range (0~100m without blind zone)

2. High measuring accuracy (typical precision: ±1mm)

3. Fast to fixed The sensor can be quickly and firmly installed with 8 screws

4. Easy to operating Automatic measurement by simple commands from a computer

5. Safety in use Laser class 2, harmless to the human body (avoid direct eye exposure)

6. Kinds of output types (can be customized before ordering) RS232/485/TTL digital data output 4~20mA/0~5V/0~10V analog current/voltage output
   Two-way switch output based on the thresholds set by users

7. Long-life and high reliability with good protection High water and dustproof level with aviation grade aluminum alloy shell (the highest level is IP67)

8. Fully customized service based on 15+ Years industry experiences

Specifications

1. Use a target plate to increase the measurement range during daylight or if the target has poor reflection properties.
2. The highest operating temperature is 40℃ when sensor works in continuous measuring mode. The operating temperature from -30℃ to 50℃or- 30℃ to 70℃ can be customized.
3. The details of dimension are shown in the following image.

A：Top view
B：Front view

Using instructions

Cable connecting definitions

Red line —— VCC
Black line —— PGND
Yellow line —— TX
Green line —— RX
White line —— DGND

Operating Steps

1. Connection
   Connect the sensor to a serial port of computer (or other device which has serial ports), then connect to a power port of adapter with special data cable.

2. Single Trigger Measuring mode

3. Send a command “O” (ASCII) by computer to turn on the sensor.
   Then sensor will emit a laser beam and prepare for working, and return the data “ – – – – ” (ASCII) to the serial interface.

4. Send a command “O” (ASCII) again to the sensor to start to measure distance. The sensor will return the measured data like “ XXXXXX” (ASCII) to the serial interface and turn off laser beam when it finished a single measurement.

5. Send a command “U” (ASCII) to turn off the sensor.

6. Continuous Measuring mode

7. Send a command “O” (ASCII) by computer to turn on the sensor.
   Then the sensor will turn on the laser and prepare for working, return the data “ – – – -” (ASCII)to the serial interface.

8. Send a command “C” (ASCII) to the sensor. The sensor will begin to measure continuously after 2 seconds when it got the order, and return the data continuously like “ XXXXXX” (ASCII).
   If the sensor couldn’t get any available data, it will return “ – – – -” to the serial interface.

9. Send a command “U” (ASCII) to turn off the whole sensor (include both of laser unit and measuring unit).

Input and output

1. Communication settings
   Baud rate: 9600 bps , Parity bit: None , Data bits: 8 , Stop bit: 1

2. Input frame format
   There is only one byte in every input frame. Users could send different commands to the sensor for different purpose, the functions of command are shown in the following table.

Off
3. Output frame format
Digital output data is displayed by ASCII code, there is 7 bytes in every data frame.
The frame header is 0XFF, the next bytes meant measured distance numbers (unit: mm). A: hundreds of thousands, B: tens of thousands, C: thousands, D: hundreds,
E: tens, F: ones.(Notice: If any byte in a data frame is not used, the sensor will return 0X20 in that byte.)Header| A| B| C| D| E| F
---|---|---|---|---|---|---
0XFF| hundreds of thousands| tens of thousands| thousands| hundreds| tens| ones

The mapping table of HEX and number codes:

For example, if the measured distance data is 3456mm, then the sensor will return data as” 3456″(HEX: FF 20 20 33 34 35 36).
Or the measured distance data is 123456mm, then the sensor will return data as “123456”(HEX: FF 31 32 33 34 35 36).

If the sensor couldn’t get any available data( out of measurement range or measured in blind zone), it will return “ – – – -”(HEX:FF 20 2D 2D 2D 2D 20) to the computer.

Troubleshooting

Factors affecting the measurement range Laser distance sensor is a new non- contact optical measuring equipment. Its measuring range and accuracy will be effected by many external environmental factors. So the actual measuring result might be different with typical value which is measured in a standard environment.
The following factors will effect actual measuring range:

Effect Factors| Increase measuring range| Decrease measuring range
---|---|---
Surface of target| Bright and smooth surface with good reflection, like target plate| Deep color and rough surface, like green or blue target surface
Air visibility| Clean air| Dust, fog, storm and rain, snow
Ambient light| Dark environment| Target exposure to strong light, like sunlight in midday
Laser emission| Laser emission lens and protection glass keep clean and smooth| Laser emission lens and protection glass get dirty or scratched

In conclusion, the best measuring result will be happen in a dark environment and with a good reflection target. We strongly suggest to use a target plate when laser distance sensor works in a poor environment.
We also suggest to keep laser emission lens and protection glass clean with a soft cloth before start to using.

Contact us
Xi’an Zhizun International Trade Co., LTD.
Xi’an SANK Optical Electronic CO.,LTD.
Tel: +86-29-87858956 ,+86-29-82252810
Mobile: 86-15353715490 Mr. Yang
E-mail: contact@top1sensor.com
Add : No.299, Jinhua North Road, Xi’an, China Getting more info & supports from http://www.top1sensor.com

References

• laser distance sensor-Xian Zhizun International

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