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Radar Human Detection

Small size, High Performance
The appearance is exquisite and compact. It uses millimeter-wave radar for ranging, and the sensing accuracy is high.
ABS material, Light And Durable
The shell is made of high-quality ABS flame retardant material, which is light, dustproof, high temperature resistant, easy to clean and not easy to wear.
Imported chips, Stable And Reliable
Industrial grade imported chip, high measurement accuracy, wide range, long-term stable work, strong reliability.
Strong Anti-Interference, Long Measurement Distance
It is not easy to be interfered by light, dust and dirt, and signals of the same frequency band, and the measurement distance is long.
Ultra-Low Power Consumption, Safe And HarmlessThe product adopts an ultra-low power consumption solution, and the radiation amount is only one tenth of that of Bluetooth, which is safe and harmless to the human body.

产品描述
Product Description
Roduct Parameters
Specifications
Instructions For Use

Small size, High Performance
The appearance is exquisite and compact. It uses millimeter-wave radar for ranging, and the sensing accuracy is high.
ABS material, Light And Durable
The shell is made of high-quality ABS flame retardant material, which is light, dustproof, high temperature resistant, easy to clean and not easy to wear.
Imported chips, Stable And Reliable
Industrial grade imported chip, high measurement accuracy, wide range, long-term stable work, strong reliability.
Strong Anti-Interference, Long Measurement Distance
It is not easy to be interfered by light, dust and dirt, and signals of the same frequency band, and the measurement distance is long.
Ultra-Low Power Consumption, Safe And HarmlessThe product adopts an ultra-low power consumption solution, and the radiation amount is only one tenth of that of Bluetooth, which is safe and harmless to the human body.
This product is a ranging radar using millimeter waves, which has the advantages of high accuracy (millimeter level), long distance, and no influence of light. The product uses the time difference between the electromagnetic wave emitted by the radar and the reflected electromagnetic wave received to calculate the target distance, so the accuracy rate is higher and it is less likely to be missed.
Wiring Instructions
- Red wire: positive power supply (DC12V).
- Black wire: negative power supply (ground wire).
- Green wire: RS485 positive (A+).
- White wire: RS485 negative (B-).

Specifications	Parameters
Power	DC12V
Operating temperature	0℃~60℃
Working humidity	5%~80%RH
Operating frequency band	60GHZ
Detection distance	Up to 680CM
Detection of blind spots	20~50CM
RS485 interface	MODBUS protocol
Storage temperature	Stored at room temperature
Size	6.52.5cm (diameterheight)

Instructions For Use

Instructions for us

1、Collection distance

The distance is calculated using the time difference between the electromagnetic wave emitted by the radar and the reflected electromagnetic wave received by the radar.

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

LoRa Protocol

1、Wireless detection device UUID acquisition request and reply

Message function	Field	Length	Explanation	Notes
Request	Device Unique ID	3 bytes	Unique ID number of the device	Slave launch
	Command Field	7bit	1
		6-1bit	Command type, 0x2b
		0bit	Keep
		1 byte	Serial number
	XOR sum	1 byte	XOR
Reply	Device Unique ID	3 bytes	Unique ID number of the device	Host initiated
	Command Field	7bit	0
		6-1bit	Command type, 0x2c
		0bit	Keep
		1 byte	with the serial number of the request command aligned
		1 byte	Device Type
		1 byte	Wireless Band
	XOR sum	1 byte	XOR

2、Sensor data active acquisition request and reply

Message function	Field	Length	Explanation	Notes
Request	Device Unique ID	3 bytes	Unique ID number of the device	Host initiated
	Command Field	7bit	0
		6-1bit	Command type, 0x2d
		0bit	0 reserved
	XOR sum	1 byte	XOR
Reply	Device Unique ID	3 bytes	Unique ID number of the device	Slave launch
	Command Field	7bit	1
		6-1bit	Command type, 0x2e
		0bit	0 reserved
		1 byte	Number of channels
		7-2bit	Channel type
		1-0bit	Number of decimal points
		4 bytes	Channel data
	XOR sum	1 byte	XOR

illustrate:：

The number of channels is the number of data, and the number is 1 if there is only distance.

The channel type is 17, which represents the distance value in centimeters.

The channel data is an integer, high byte first. Integer is the value that the actual data is enlarged according to the number after the decimal point.

The number of decimal points determines the magnification of the channel data filled in 4 bytes. When the number of decimal points is 1, it is magnified by 10 times, when it is 2, it is magnified by 100 times, when it is 3, it is magnified by 1000 times, and when it is 0, it is unchanged.

RS485 Protocol

1、MODBUS communication protocol

(1) Hold register address definition

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 Actions 4.8M, 0x05 means radar ranging 7M
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 at
0x0010	Ranging device threshold	1cm	Depends on type	Read/Write	Comparison between the device and the threshold can output the presence status, the default 80CM
0x0011	Number of comparisons of ranging equipment	1 time	Depends on type	Read/Write	The number of comparisons, the distance is compared with the threshold value, if the continuous consumption is less than the threshold value, the output exists, and if it is greater than the threshold value, the output does not exist, 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, broadcast Address 0xff, range 0~247
0x0100	Detection start distance			Read/Write	10~50
0x0101	Probing depth			Read/Write	50~680

2、Private Protocol

(1) Set UUID

Message function	field	length	Explanation	Remarks
Request	Device Unique ID	3 bytes	FFFFFF (forced modification)	Host initiated
	Command field	7bit	0
		6-1bit	Command Type, 0x28
		0bit	Reserved
		1 byte	UUID length
		3 bytes	UUID
	XOR sum	1 byte	XOR
	Fixed tail	2 bytes	0xaa 0x55
	Device Unique ID	3 bytes	Unique ID number of the device	Slave initiated
	Command field	7bit	1
Reply		6-1bit	Command type, 0x29
		0bit	0 means the setting is successful, 1
		0bit	Indicates setting failed
	XOR sum	1 byte	XOR
	Fixed tail	2 bytes	0xaa 0x55

(2) Query Distance

Message function	field	length	Explanation	Remarks
	Device Unique ID	3 bytes	Unique ID number of the device
		7bit	0
	command field	6-1bit	Command type, 0x32
request		0bit	reserved	Host initiated
	XOR sum	1 byte	XOR
	Fixed tail	2 bytes	0xaa 0x55
	Device Unique ID	3 bytes	Unique ID number of the device
		7bit	1
		6-1bit	Command type, 0x26
	command field		Status, 0 means the obtained distance value is valid; 1 means the obtained distance value
Reply		0bit	invalid	Slave initiated
		2 bytes	Current distance value
	XOR sum	1 byte	XOR
	Fixed tail	2 bytes	0xaa 0x55

(3) Example

Read the distance value of device address 0x01

Query Frame:

地址码	功能码		起始地址	数据长度		校验码低位		校验码高位
Ox01	Ox03		ox00 OxOE	ox00 Ox01		OxE5		oxc9

Reply Frame:

地址码	功能码	返回有效字节数			距离值		校验码低位		校验码高位
Ox01	Ox03	ox02			ox00 Ox64		OxB9		OxAF

Distance value: 0064H (hexadecimal) = 100 => distance value = 100cm.

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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Radar Human Detection

Wiring Instructions