Seeed studio Fall Detection Module Pro Bedienungsanleitung

Table of Contents

1. Overview!.............................................................................................................................................!3!

2. Electrical characteristics and parameters!....................................................................!4!

2.1 Detection angle and distance!........................................................................................!4!

2.2. Electrical characteristics!................................................................................................!4!

2.!3. RF performance!..................................................................................................................!4!

3. Module dimensions and pin description!........................................................................!5!

3.1 Module size package!..........................................................................................................!5!

3.!2. Pin description!.....................................................................................................................!5!

3.2 Using the wiring diagram!................................................................................................!6!

4. Main working properties!..........................................................................................................!6!

4.1 Radar module operating range!.....................................................................................!6!

4.2. Main functions and performance!..............................................................................!7!

5. How the radar works and how it is installed!..............................................................!8!

5.1. Vertical mounting mode!...................................................................................................!8!

5.2. Tilt mounting mode!............................................................................................................!8!

5.3. Horizontal mounting mode!............................................................................................!9!

6. Typical applications!....................................................................................................................!9!

1. Overview

The MR60FDA1 radar module is a radar module that uses 60G millimeter

wave radar technology for human movement and posture sensing, and thus

for fall detection. The module is based on the FMCW radar system and

enables the wireless sensing of the status of people in a specific location.

This radar module has the following operating characteristics.

• Implementing the function of detecting the position of people and

counting their number.

• Limits detection to persons with biological characteristics (moving or

stationary) and eliminates interference from other inanimate objects in

the environment.

• This module effectively eliminates interference from non-living objects

and also enables detection of non-living moving objects.

• Product support for secondary development, adapting to a wide range

of scenario applications.

• Universal UART communication interface, providing a common protocol

• 4 groups of I\O are reserved for user-defined input and output, or

simple interface simulation

• The output power is low, no harm to human body.

• This module is not affected by temperature, light, dust and other

factors, high sensitivity, wide range of applications.

2. Electrical characteristics and parameters

2.1 Detection angle and distance

Content

Minimum

Typical

Maximum

Units

MR60FDA1

Radius of movement of people detection [1]

metre

Fall monitoring radius [2]

2.5

metre

Radar detection angle (horizontal)

100

degree

Radar detection angle (pitch)

100

degree

Note: [1][2] Radar hang height 2.8 m, radius of radar projection.!

2.2. Electrical characteristics

2.!3. RF performance

Parameters

Operating frequency (fTX)

63.5

GHz

Transmitted power (Pout)

dBm

Content

Minimum

Typical

Maximum

Units

Operating voltage (VCC)

4.5

5.0

Operating current (ICC)

100

Operating temperature (TOP)

-20

+60

°C

Storage temperature (TST)

-40

+80

°C

3. Module dimensions and pin description

3.1 Module size package

Fig.1 !Schematic diagram of the radar module structure

3.!2. Pin description

Interface

Pins

Description

Typical

Description

Interface 1

5.0V

Power supply input positive

GND

Ground

Serial port reception

Serial port transfer

3.3V/0V

Interface 2

3V3

3.3V

Output power

GND

Ground

Reserved

GP1

Spare expansion pins

GP2

Spare expansion pins

GP3

Spare expansion pins

GP4

Spare expansion pins

3.2 Using the wiring diagram

Fig.2 Schematic diagram of the radar module and peripheral

connections

4. Main working properties

4.1 Radar module operating range

The radar module beam coverage is shown. The radar coverage is a three-

dimensional sector of 100° horizontally and 100° tilted.

Due to the characteristics of the radar beam, the radar acts farther in the

direction normal to the antenna face, but the distance away from the

antenna normal becomes shorter.

When the radar is mounted on top or at an angle, the radar range will be

reduced due to the radar beam range and the effective radiation space,

which needs to be taken into account when using the radar.

4.2. main functions and performance

a. Fall detection function

a) Detection distance.

i. ≤ 2 m // radius of radar projection when installed on top

ii. ≤4m // tilt installation, radar projection distance

b) Accuracy rate: ≥90%

b. Presence awareness function

a) Detection distance: ≤3m

b) Accuracy rate: ≥ 90%

//Projection radius

c. Motion detection functions

a) Motion triggering

b) Motion direction and position sensing

5. How the radar works and how it is installed

5.1. vertical mounting mode

The radar is mounted on the roof and is directed vertically downwards.

The radar is installed at a height of H = 2.4 m to 3 m; the radius of the radar

beam coverage area is R. Within the radar projection area, the projection

area is considered to be further divided into a fall detection area, a presence

detection area and a motion-triggered detection area, which is shown in the

diagram below.

!!!!!!!!!!!!!!!!!! !

(a) Radar projection schematic (b) Schematic diagram of beam splitting

5.2. Tilt mounting mode

Some applications require the radar to be mounted at an angle, e.g. in the

corner of a wall.

For this type of installation, a gyroscope sensor is considered to be located

at home on the radar for radar tilt measurement, which in turn assists the

radar with angle correction.

5.3. Horizontal mounting mode

Given the current number of channels in the radar chip, the fall check

function in horizontal mounting mode is not considered for the time being.

6. Typical applications

A. The product is suitable for small area scenarios such as bathrooms,

toilets and bedrooms.

B. The product is suitable for overhead installation and tilt installation

mode.

C. The product is suitable for single/twin situations.

D. The product needs to be combined with the application scenario to

eliminate interfering movements.

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