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Laser Human Body Sensing Module

Various adaptation algorithms, configuration and parameters are adjustable
A variety of algorithms are built-in, and a variety of adjustable configurations and parameters are open.
Unique design, high sensitivity
Unique optical and electrical design, can measure distance with high sensitivity.
Imported chips, stable and reliable
Industrial grade imported chip, high measurement accuracy, wide range, can work stably for a long time.
Small size, high performance
The appearance is exquisite and small, and the laser sensor is used, and the sensing accuracy is high.

产品描述
Product Description
Roduct Parameters
Specifications
Instructions For Use

Various adaptation algorithms, configuration and parameters are adjustable
A variety of algorithms are built-in, and a variety of adjustable configurations and parameters are open.
Unique design, high sensitivity
Unique optical and electrical design, can measure distance with high sensitivity.
Imported chips, stable and reliable
Industrial grade imported chip, high measurement accuracy, wide range, can work stably for a long time.
Small size, high performance
The appearance is exquisite and small, and the laser sensor is used, and the sensing accuracy is high.
The laser ranging module adopts the TOF principle of infrared laser to detect the distance, and the user can modify the parameters according to the agreement, so that the module can realize the function of detecting whether there are people or not. The information that the module judges whether there is someone or not can be transmitted to the upper-level gateway through wired RS485, so that the user can intuitively check that the device detects whether there is someone or not.

Applications:The laser ranging module can be widely used in professional surveying and mapping, construction and mining exploration, Internet of Things systems, intelligent transportation, warehousing and logistics, robotics, industrial monitoring and agricultural automation measurement.
Wiring Instructions
- Red wire: positive power supply (DC12V).
- Black wire: negative power supply (GND).
- Green wire: RS485 positive (A+).
- White wire: RS485 negative (B-).

Specifications	Parameters
Communication	RS485
Red LED light	On power on, it works normally
Measurement range	0 ~ 4M
Measure time	0.125 ~ 4S
Measurement accuracy	±3mm
Voltage	DC 5 ~ 12V
Debug mode	<20mA
Working temperature	-10℃~60℃
Working humidity	5%~80%RH
Storage temperature	Store at room temperature

Instructions For Use

After the device is installed, it can work normally when powered on

Function Description

1. Distance collection

The target distance is determined by the infrared laser TOF principle.

2. Existence judgment

The distance value collected in step 1 is compared with the set threshold value. If the distance is less than the threshold value and continuously exceeds the set number of times, it is considered to exist. If the distance is continuously greater than the threshold value and exceeds the set number of times continuously, it is judged that it does not exist.

3、Parameter setting

Support through the RS485 bus, use the private protocol and the MODBUS protocol to modify the parameters and obtain the current distance value.

Protocol Description

MODBUS Protocol

1、Holding Register Address Definitions

Address	Register Information	Measurement resolution	Measuring range	Operation	Notes
0x000d	Ranging device sensor type			Read only	0x01 means ST 2m device, 0x02 means ST 4m device, 0x03 means ST 7m device, 0x04 means OPNOUS 4.8m equipment, 0x05 means radar ranging 7 meters equipment
0x000e	Ranging device distance value	1cm	Depends on type	Read only	Dynamic update of sensor data
0x000f	Ranging presence status			Read only	0 means does not exist, 1 means exists
0x0010	Ranging device threshold	1cm	Depends on type	Read/Write	Comparison between the device and the threshold can output the presence status, the default is 80CM
0x0011	Number of comparisons of ranging equipment	1 time	Depends on type	Read/Write	The number of comparisons, the comparison between the distance and the threshold is continuous. If it is less than the threshold, the output exists, and if it is greater than the threshold, the output is not Exists, default 3
0x0012	Value method			Read/Write	0 - closest distance (default) 1 - strongest signal
0x1000	MODBUS address			Read/Write	The factory default address is 0, the broadcast address is Oxff, the range is 0~247
0x0100	Detection start distance			Read/Write	10~50
0x0101	Probing depth			Read/Write	50~680

2、Example

Query the distance value of the device whose device address is 0x01.

Query Frame:

Address code	function code	Start address	Data length	Check code low position	Check code high position
0x01	0x03	0x00 0x0E	0x00 0x01	0xE5	0xC9

Query Frame:

Address code	function code	returns the number of valid bytes	Device distance value	Check code low position	Check code high position
0x01	0x03	0x02	0x00 0xC2	0x39	0xD5

Device distance value: 00C2H (hexadecimal)=194=>device distance value=194cm.

Disclaimer OF Warranties

The company reserves the right to change this specification and update the product. The specification and product may be updated without prior notice without affecting the product quality and user usage. We are not responsible for any direct, indirect, intentional or unintentional damage and hidden dangers caused by improper use and out-of-specification use.

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Laser Human Body Sensing Module

Applications:The laser ranging module can be widely used in professional surveying and mapping, construction and mining exploration, Internet of Things systems, intelligent transportation, warehousing and logistics, robotics, industrial monitoring and agricultural automation measurement.

Wiring Instructions