The Principle
Using the principle of sound emission and reflection of the ultrasonic sensor, the sensor is installed at the highest point of the device for vertical downward detection. When the person stands on the height and weight scale, ultrasonic sensor starts to detect the top of tested person's head, the straight-line distance from the top of test person's head to the sensor will be obtained after detection. The height value of the tested person is obtained by subtracting the distance measured by the sensor from the total height of the fixed device.
Applications
Health detection all-in-one machine: Height detection in hospitals, community physical examinations, government affairs centers, community physical examinations, schools, etc.
Intelligent height detector: Beauty and fitness clubs, shopping malls, pharmacies, pedestrian streets, etc.
DYP H01 series sensor module for Ultrasonic Human height detection
1. Dimension
Output Interface Connector
1.UART/PWM with XH2.54-5Pin connector from left to right respectively are GND, Out(Reserved), TX(Output), RX(Control), VCC
2.RS485output with XH2.54-4Pin connector, from left to right respectively are GND, B(Data- pin), A(Data+ pin), VCC
Difference of Output
H01 series providing three different output, through welding different element on PCBA to realize different output.
|
Output Type |
Resistance: 10k (0603 Packaging) |
RS485 Chipset |
|
UART |
Yes |
No |
|
PWM |
No |
No |
|
RS485 |
Yes |
Yes |
Measuring Range
The sensor can detect object at a distance of 8 meters, but due to the different reflection degrees of each measured object and the surface is not all flat, the measurement distance and accuracy of the H01 will be different for different measured objects. The following table is the measurement distance and accuracy of some typical measured objects, for reference only.
|
Measured Object |
Measuring range |
Accuracy |
|
Flat Paperboard （50*60cm） |
10-800cm |
±5mm range |
|
Round PVC pipe （φ7.5cm） |
10-500cm |
±5mm range |
|
Adult Head(On the top of Head) |
10-200cm |
±5mm range |
Serial communication
The UART/RS485 output of the product can be connected to computer through USB to TTL/RS485 cable, data can be read by using the DYP serial port tool which setting as shown in the figure:
Select corresponding port, select 9600 of baud rate, select the DYP protocol for the communication protocol, and then open the serial port.
Installation
Single sensor installation: The sensor probe surface is parallel to the structural surface (applied to height measuring instruments)
Sensors are installed side by side: 3pcs sensors are installed in a triangular distribution with a center distance of 15cm (applied to the health house)
Improper installation: Probe position inside recessed structure/A closed structure is formed outside the probe (affecting signal transmission)
(Wrong installation)
Post time: Mar-28-2022