YO Vibration Monitor

Overview

Description

YO Vibration Monitor is designed for monitoring vibrations in electric motors and other machinery. It features a vibration sensor with an accelerometer and temperature sensor, along with internal temperature and relative humidity sensors. Using 3-axis composite measurements, the device detects vibrations and transmits data via LoRaWAN. Its battery-powered design ensures non-invasive installation without the need for additional cables. Configurable parameters include minimum/maximum analysis frequency, detection threshold, activation state, measurement delay, inactivity time, and a clearable counter. Ideal for predictive maintenance, the YO Vibration Monitor enables remote, continuous monitoring, replacing traditional inspections and improving the reliability of machines, production lines, and similar systems.

Figure 1. Device top view

Device sticker placed on the right side of the device enclosure contains information about model, version, LoRaWAN region and 3 parameters important in case of device identification and configuration:

• DEV EUI: 64-bit unique device identifier in a LoRaWAN network,
• DEV ADDR: address required to connect via ABP activation type to LoRaWAN,
• BLE MAC: Bluetooth physical address.

Figure 2. Device sticker

Features

• LoRaWAN Technology: Available in multiple versions with LoRa radio configured for various regions and ISM frequency bands (e.g., EU868, US915, AU915), it is compatible with both private and public LoRaWAN networks and supports connections via ABP (Activation by Personalization) or OTAA (Over-The-Air Activation).
• Bluetooth Low Energy (BLE): Enables easy configuration via a user-friendly JSON data exchange format. Supports firmware updates via OTA (Over-the-Air). Very low energy consumption
• Battery-Powered: Equipped with 3x AA lithium batteries featuring very low self-discharge, ensuring long-term operation without the need for an external power supply.
• Temperature and Relative Humidity: Measures temperature and relative humidity within the device enclosure, providing valuable insights into the surrounding environment.
• Vibration sensor: Equipped with a 3-axis accelerometer, the sensor detects and measures vibrations with high precision, enabling real-time monitoring of machinery and early detection of potential issues to support predictive maintenance.
• Yosensi Management Platform: Provides a web tool for device configuration, firmware updates, and infrastructure management. Enables comprehensive monitoring of transmitted data and easy device management.
• Yosensi Mobile App: Effortlessly manage devices with features to register new ones, configure settings, perform firmware updates, view/send logs, and test LoRaWAN connectivity. Learn more in our detailed Yosensi App blog post.
• Configurable Analysis Range: Define minimum and maximum vibration analysis frequency.
• Threshold Setting: Adjust vibration detection sensitivity in [g].
• Active State Control: Enable or disable vibration detection feature.
• Measurement Delay: Set a delay [s] before measurement after detecting vibration.
• Inactivity Timer: Define inactivity time [s] before rechecking threshold.
• Clearable Counter: Reset persistent vibration counter when needed.

Specifications

Physical

Figure 3. Dimensions of the device

Device

Attribute	Description
Dimensions	Height: 35 mm Width: 67,3 mm Depth: 124,3 mm
Colour	White
Mounting method	Horizontal Vertical (can be screwed to the wall)
Enclosure material	ABS
Level of protection	IP40
Weight	220 g (without batteries, incl. sensor)

Vibration sensor

Figure 4. Vibration sensor

Attribute	Description
Dimensions	Height: 35 mm Width: 35 mm Depth: 20 mm
Colour	Grey
Cable length	1 m
Mounting method	Magnet Mounting (default) Internal Thread Mounting External Thread Mounting Mounting Bracket
Enclosure material	ABS
Level of protection	IP67
Weight	45 g

Operating Conditions

°C°F

Attribute	Description
Temperature	0°C to 70°C
Humidity	0 to 90%
Placement	Indoor use
Power supply	3 x LR6 (AA) battery (3 x 1,5 V)
Power consumption	Maximum: 120 mA DC (4,5 V DC)

Measured Values

°C°F

Parameter	Measurement range	Accuracy
Temperature	-40°C to 125°C	±0.2°C (5°C to 60°C)
Relative humidity	0% to 100%	±2% (20% to 80%)
Temperature external	-40°C to 125°C	±0.2°C (5°C to 60°C)
XYZ Deviation	0 to 10	0.01
XYZ Kurtosis	-3 to 3	0.01
XYZ Velocity RMS	0 to 45	0.1 mm/s
XYZ Peak-to-Peak Displacement	0 to 10000	1 μm
XYZ Crest factor	0 to 160	0.01
XYZ Peak	0 to 16 g	0.001 g
XYZ RMS	0 to 16 g	0.001 g
XYZ Skewness	-3 to 3	0.01
XYZ Peak Frequency	0 to 10000 Hz	0.01 Hz
State	0-1	-
Counter	0-2147483647 ( int32 )	-

Controls and Indicators

LED Status Indicator

YO Vibration Monitor communicates its current behaviour to the user by RGBW LED placed on the side.

Diode statuses interpretation

Behavior	Colour	Status
Single flash	Green	General: device is working correctly (power and memory).
Single flash	Red	General: device is working incorrectly (power and memory). LoRaWAN communication: failed to receive an acknowledgement from LoRaWAN Server within specified timeout.
Single flash	White	LoRaWAN communication: LoRaWAN frame sent / confirmation from LoRaWAN Server after receiving the frame.
Slow flashing	Blue	BLE communication: connection to the device via BLE (configuration).
Rapid flashing	Blue	LoRaWAN communication: connecting to LoRaWAN network.

Buttons

The YO Vibration Monitor has a button for resetting the device. Figure 7 shows its placement. To reboot the device, press the reset button for a moment.

Figure 5. Reset button

Installation

Package Contents

1. Device (without batteries).
2. External vibration sensor.
3. Warranty card.

Safety Precautions

NOTE

Go to the Safety Precautions section to see important information on handling, disposal and maintenance.

Installation Guide

1. Connect the sensor to the D-Sub socket on the device. Ensure that the connector is tightened on both sides.

Figure 6. Connecting sensor to the device

Figure 7. Tightening the sensor to the device

2. Unscrew the device: remove 4 screws from the enclosure.

Figure 8. Back view of the device

3. Place three LR6 (AA) batteries in the device according to the polarity indicated on the battery holder.

Figure 9. Battery placement instructions

4. Assemble the device and screw it back together.

5. The vibration sensor has an M5 thread. When placing an order, you can choose a different mounting option than the default one (magnet or external thread). Below are several recommended options for mounting the vibration sensor.

   A. Magnet Mounting: Screw the magnet into the M5 thread. Attach the device to the metal surface of the electric motor according to the X, Y, Z axes marked on the sensor enclosure.

Figure 10. Magnet mounting view

Figure 11. Magnet mounting view

B. Internal Thread Mounting: Attach a screw fitting the M5 thread to the surface of the motor and screw the vibration sensor into it according to the X, Y, Z axes marked on the sensor enclosure.

Figure 12. Internal thread mounting view

C. External Thread Mounting: Attach an M5 thread fitting the screw in the device to the surface of the motor. Mount the vibration sensor on the electric motor according to the X, Y, Z axes marked on the sensor enclosure.

Figure 13. External thread mounting view

D. Mounting Bracket (Mounting Lugs): Using the mounting lugs on the enclosure, attach the vibration sensor to the electric motor with, for example, zip ties or screws. Remember to position the sensor according to the X, Y, Z axes marked on the sensor enclosure.

Configuration

Configurable Parameters

A few parameters must be set before sending data to the gateway. The default firmware is configured in OTAA mode with predefined deveui, appkey (OTAA) and appskey, nwkskey (ABP).

Configuration of the device is stored in a JSON file divided into the following sections:

• info (generic, read only): information about the device,
• general (generic): general device settings,
• lorawan (generic): configuration data for LoRaWAN connection,
• ble (generic): Bluetooth settings,
• device (dynamic): individual configuration for a specific device (this section’s structure differs for each device),

Sample configuration file for the YO Vibration Monitor device.

{
	"info": {
			"devmodel": "LNVM",
			"fwver": "1.2.1",
			"loraradio": "SX1261",
			"lorawanver": "1.0.2",
			"loraregion": "EU868",
			"blemacaddr": "0123456789ab"
	},
	"lorawan": {
			"subband": 1,
			"retrycnt": 3,
			"nwktype": "public",
			"acttype": "otaa",
			"otaa": {
					"deveui": "0123456789abcdef",
					"appeui": "be7a000000000688",
					"appkey": "000102030405060708090a0b0c0d0e0f",
					"trials": 3
			},
			"abp": {
					"devaddr": "01234567",
					"nwkskey": "0123456789abcdef0123456789abcdef",
					"appskey": "000102030405060708090a0b0c0d0e0f"
			}
	},
	"general": {
			"rtcstate": "disable",
	},
	"ble": {
			"power": 0,
			"interval": 1600
	},
	"device": {
			"measinterval": 3600,
    		"analysisfreqmax": 1000,
    		"analysisfreqmin": 10,
    		"vibrationdetector": {
      				"clearcnt": "no",
      				"threshold": "0.1g",
      				"activestate": "disable",
      				"delayvibrmeas": 10,
      				"inactivitytime": 60
    		}
	}
}

OTAA & ABP

OTAA	ABP
Device EUI	Device Address
Application EUI	Network Session Key
Application Key	Application Session Key
Number of Trials

Generic Parameters

Generic Parameters for Yosensi Devices.

Click here to see the generic parameters for Yosensi devices.

Parameters

Device Parameters

Name	Description	Possible Values	Default Value	Read/Write
measinterval	Measuring and sending interval LoRa [s]	601-999999	3600	R/W
analysisfreqmax	Analysis Maximum Frequency	1-10000	1000	R/W
analysisfreqmin	Analysis Minimum Frequency	1-10000	10	R/W
clearcnt	Clear persistent counter	no/yes	no	R/W
threshold	Detector Threshold	0.1-1.0 [g]	0.1	R/W
activestate	Vibration Detector State	disable/enable	disable	R/W
delayvibrmeas	Post-Detected Vibration Measurement Delay [s]	1-999999	10	R/W
inactivitytime	Debounce interval after detection [s]	1-999999	60	R/W
OTAA minimum 60 [s], ABP minimum 120 [s]

Parameters description

• rtcstate: used for enabling/disabling the real-time clock (RTC) inside the device. The RTC is used for timestamping the measurements.
• nwktype: used for setting the device in public or private network type.
• acttype: used for setting the device in ABP or OTAA mode.
• deveui, … , appskey: predefined addresses and keys, these parameters are generated using multiple IDs specific to the particular MCU and are unique for each device. They can be changed if needed.
• interval: determines the interval of sending broadcast packets, used to connect to every BLE receiver around the device.
• subband: used for setting the communication frequency sub-band in LoRaWAN.
• retrycnt: number of retries to send a LoRa packet if the acknowledgement is not received from the LoRaWAN server.
• measinterval: measurement interval [s] between sending LoRa packets.
• analysisfreqmax: maximum frequency [Hz] of the vibration analysis.
• analysisfreqmin: minimum frequency [Hz] of the vibration analysis.
• clearcnt: clears the persistent counter.
• threshold: threshold of vibration detection [g].
• activestate: enables/disables the vibration detection feature.
• delayvibrmeas: delay [s] of taking a measurement after detecting vibration above the threshold.
• inactivitytime: time [s] of inactivity after which the device rechecks the threshold, if it's still above the threshold, it waits again.

Downlink message

You can remotely adjust certain parameters by sending a downlink message through our platform. Simply navigate to the "COMMANDS" section for the selected device.

Change Measurement Interval

It is possible to change the measurement interval (measinterval) by using downlink. Information about changing the parameter will be sent from the server via the gateway.

Example of Downlink Message:

• Prefix: 0x03
• Measurement Index: 0x00
• Data (up to 4 bytes in hex): 0258

Sample Downlink: 0x03000258 - Sets a measurement interval of 600 seconds (10 minutes).

Connecting Nodes to the Network with Yosensi Management Platform

Click here to see how to connect a node using the Yosensi Management Platform.

Node Configuration with Yosensi Management Platform

See how to configure a node in Yosensi Management Platform

Node Configuration via Yosensi Mobile Application

Check how to adopt and configure a node via the Yosensi App.

Frequency Plan

Take a look at the list of frequency plans used in Yosensi.

Payload Description

This datasheet describes the payload protocol developed by Yosensi for communicating with our devices.

Payload Decoder

If you want to connect to your own server, it is necessary to decode the specific payload for each device. To accomplish this, a payload decoder is required, which can be downloaded using the following link: Payload decoder. You can also use our integrated Payload Decoder here. Extended documentation of the protocol can be found in the Payload description on our website.

Compliance Statements

NOTE

To view or download the Declaration of Conformity for YO Vibration Monitor go here