netvox R311B Wireless Light Sensor User Manual

: June 6, 2024
: netvox

Table of Contents

Introduction
- LoRa Wireless Technology:
- LoRaWAN:
Appearance
Main Features
Set up Instruction
Data Report
Installation
Important Maintenance Instruction
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netvox R311B Wireless Light Sensor

Introduction

R311B is a long-distance Wireless Light Sensor based on the LoRaWAN open protocol (Class A).
When the illuminance exceeds the set threshold, a report will be sent immediately.

LoRa Wireless Technology:

LoRa is a wireless communication technology famous for its long-distance transmission and low power consumption. Compared with other communication methods, LoRa spread spectrum modulation technique greatly extend the communication distance. It can be widely used in any use case that requires long-distance and low-data wireless communications. For example, automatic meter reading, building automation equipment, wireless security systems, industrial monitoring. It has features like small size, low power consumption, long transmission distance, strong anti-interference ability and so on.

LoRaWAN:

LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and gateways from different manufacturers.

This device has been certified by the LoRa Alliance and is allowed to use the following logo on the product:

Appearance

Main Features

Compatible with LoRaWAN
2 sections of 3V CR2450 button battery power supply
Illuminance detection
Simple operation and setting
Protection level IP3
Compatible with LoRaWANTM Class A
Frequency hopping spread spectrum technology
Configuration parameters can be configured through third-party software platforms, data can be read and alarms can be set via SMS text and email (optional)
Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne
Low power consumption and long battery life

Note*:

Battery life is determined by the sensor reporting frequency and other variables, please refer to
http://www.netvox.com.tw/electric/electriccalc.html On this website, users can find battery life time for varied models at different configurations.

Set up Instruction

On/Off

Power on| Insert batteries. (users may need a screwdriver to open) ;
Insert two sections of 3V CR2450 button batteries and close the battery cover.)
---|---
Turn on| Press any function key till green and red indicator flashes once.
Turn off (Restore to factory setting)| Press and hold the function key for 5 seconds till green indicator flashes for 20 times.
Power off| Remove Batteries.
Note:|

Remove and insert the battery; the device memorizes previous on/off state by default.
On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor inductance and other energy storage components.
Press any function key and insert batteries at the same time; it will enter engineer testing mode.

Network Joining

Never joined the network| Turn on the device to search the network.
The green indicator stays on for 5 seconds: success The green indicator remains off: fail
---|---
**** Had joined the network| Turn on the device to search the previous network.
The green indicator stays on for 5 seconds: success The green indicator remains off: fail
Fail to join the network (when the device is on)| Suggest to check the device verification information on the gateway or consult your platform server provider.

Function Key

Press and hold for 5 seconds| Restore to factory setting / Turn off
The green indicator flashes for 20 times: success The green indicator remains off: fail
---|---
**** Press once| The device is in the network: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off

Sleeping Mode

The device is on and in the network| Sleeping period: Min Interval.
When the reportchange exceeds setting value or the state changes: send a data report according to Min Interval.
---|---

Low Voltage Warning

Low Voltage	2.4V

Data Report

When the device is powered on and activated, it will immediately send a version package. Data will be reported once per hour by default setting.

Default setting:
Maximum time: 3600s
Minimum time: 3600s
BatteryChange: 0x01 (0.1V)

Illuminance Threshold:
When the illuminance exceeds the set threshold, a report will be sent immediately.
Illuminance Threshold: 0x00FF (255 LUX) // The threshold setting range is 0x0000-0x0BB8 (0~3000 LUX)

Note:
MinInterval is the sampling period for the Sensor. Sampling period >= MinInterval. The reported data is decoded by the Netvox
LoRaWAN Application Command document and http://loraresolver.netvoxcloud.com:8888/page/index

Data report configuration and sending period are as following:

Min Interval
(Unit:second)

| Max Interval
(Unit:second)| Reportable Change| Current Change≥
Reportable Change|

Current Change＜
Reportable Change

---|---|---|---|---

Any number between
1~65535

| Any number between
1~65535| Can not be 0.| Report per Min Interval|

Report per Max Interval

Example of ReportDataCmd

FPort：0x06

Bytes| 1| 1| 1|

Var(Fix=8 Bytes)

---|---|---|---|---

| Version| DeviceType| Report Type|

NetvoxPayLoadData

Version– 1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType– 1 byte – Device Type of Device
The device type is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)

Device

| DeviceType| ReportType|

NetvoxPayLoadData

---|---|---|---
R311B| 0x4B| 0x01| Battery (1Byte, unit:0.1V)| illuminance (2Bytes,unit:1Lux)|

Reserved (5Bytes,fixed 0x00)

Uplink: 014B011C03840000000000
1st byte (01): Version
2nd byte (4B): DeviceType 0x4B － R311B
3rd byte (01): Report Type
4th byte (1C): Battery－2.8v , 1C Hex=28 Dec 28*0.1v=2.8v
5th 6th byte (0384): illuminance－900 LUX, 384 Hex=900 Dec
7th ~ 11th byte (0000000000): Reserved

Example of ConfigureCmd

FPort：0x07

Bytes

| 1| 1| Var(Fix =9 Bytes)
---|---|---|---
| CmdID| DeviceType|

NetvoxPayLoadData

CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)

Description	Device	CmdID	Device Type	NetvoxPayLoadData
Config ReportReq	R311B	0x01

0x4B

(1)Command Configuration:
Downlink： 014B003C003C0100C80000 003C(Hex) = 60(Dec) , C8(Hex) = 200(Dec)
Response：
814B000000000000000000 (Configuration success)
814B010000000000000000 (Configuration failure)
(2)Read Configuration:
Downlink： 024B000000000000000000
Response：
824B003C003C0100C80000（Current configuration）

Example for MinTime/MaxTime logic

Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V

Note:
MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange value.

Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.

Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.

Notes:

The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect data.
The data collected is compared with the last data reported. If the data change value is greater than the ReportableChange value, the device reports according to MinTime interval. If the data variation is not greater than the last data reported, the device reports according to MaxTime interval.
We do not recommend to set the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes up frequently and the battery will be drained soon.
Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another cycle of MinTime / MaxTime calculation is started

Installation

(1) This product does not have a waterproof function. After the joining is completed, please place it indoors.
(2) The dust in the installation position of the equipment needs to be wiped clean and then affixed to the equipment.

1. Remove the 3M adhesive on the back of the light sensor and attach the device to the position where the light value needs to be detected (please do not stick it to a rough surface to prevent the device from falling off after a long time).

Note:

Wipe the surface clean before installation to avoid dust on the surface and affect the adhesion of the device.
Do not install the device in a metal shielded box or other electrical equipment around it to avoid affecting the wireless transmission of the device.

2. When the illuminance exceeds the set threshold (default is 255 LUX), a report will be sent immediately. This figure shows the scene where the light sensor (R311B) is applied in the office.

It can also be applied to the following scenarios:

Home
SchoolStorage room
Hospital
Bar
Stairs
Agricultural greenhouse

Places which need to detect the illumination value

(3) The battery installation method is shown in the figure below (battery with “+” facing outward)

Note:
To install the battery, use a screwdriver or similar tool to assist in opening the battery cover

Important Maintenance Instruction

Kindly pay attention to the following in order to achieve the best maintenance of the product:

Keep the device dry. Rain, moisture, or any liquid, might contain minerals and thus corrode electronic circuits. If the device getswet, please dry it completely.
Do not use or store the device in dusty or dirty environment. It might damage its detachable parts and electronic components.
Do not store the device under excessive heat condition. High temperature can shorten the life of electronic devices, destroy batteries, and deform or melt some plastic parts.
Do not store the device in places that are too cold. Otherwise, when the temperature rises to normal temperature, moisture will form inside, which will destroy the board.
Do not throw, knock or shake the device. Rough handling of equipment can destroy internal circuit boards and delicate structures.
Do not clean the device with strong chemicals, detergents or strong detergents.
Do not apply the device with paint. Smudges might block in the device and affect the operation.
Do not throw the battery into the fire, or the battery will explode. Damaged batteries may also explode.

All of the above applies to your device, battery and accessories. If any device is not working properly, please take it to the nearest authorized service facility for repair.