netvox R311D Wireless Asset Sensor User Manual
- June 6, 2024
- netvox
Table of Contents
netvox R311D Wireless Asset Sensor
Introduction
R311D is a simple positioning function, periodically reports RSSI and SNR
information to the gateway for processing and can locate the position status
of the device according to the reported RSSI and SNR information
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.
Appearance
Main Features
- Compatible with LoRaWAN
- 2 sections of 3V CR2450 button battery power supply
- RSSI / SNR detection
- Simple operation and setting
- Compatible with LoRaWANTM Class A
- Frequency-hopping spread spectrum
- Configuration parameters can be configured via a third-party software platform, data can be read and alerts can be set via SMS text and email (optional)
- Applicable to third-party platforms: 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/electric_calc.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 the green and red indicator flash once.
Turn off (Restore to factory setting)| Press and hold the function key for 5
seconds till the green indicator flashes for 20 times.
Power off| Remove Batteries.
Note:
| 1. Remove and insert the battery; the device memorizes previous on/off state by default.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor inductance and other energy storage components.
3. 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 to join. 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 to join. 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: the green indicator flashes once and sends a report
The device is not in the network: the 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 turned on, it will immediately send a version package. Data will be reported by default setting before any configuration.
- Default setting:
- Maximum time: 3600s
- Minimum time: 3600s
- BatteryChange: 0x01 (0.1V)
The reported data is decoded by the Netvox LoRaWAN Application Command document and http://www.netvox.com.cn:8888/page/index
Note: The real data sending cycle is subject to the programming configuration before shipment. 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 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
| Cmd
ID
| Device
Type
|
NetvoxPayLoadData
---|---|---|---|---
ConfigReport
Req
|
R311D
|
0x01
|
0x4E
| MinTime
(2bytes Unit:s)
| MaxTime
(2bytes Unit:s)
| BatteryChange
(1byte Unit:0.1v)
| Reserved
(4Bytes,Fixed 0x00)
ConfigReport
Rsp
|
0x81
| Status
(0x00_success)
| Reserved
(8Bytes,Fixed 0x00)
ReadConfig
ReportReq
|
0x02
| Reserved
(9Bytes,Fixed 0x00)
ReadConfig
ReportRsp
|
0x82
| MinTime
(2bytes Unit:s)
| MaxTime
(2bytes Unit:s)
| BatteryChange
(1byte Unit:0.1v)
| Reserved
(4Bytes,Fixed 0x00)
- Command Configuration:
- MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v
- Downlink： 014E003C003C0100000000 // 003C(Hex) = 60(Dec)
- Response： 814E000000000000000000（ Configuration success） 814E010000000000000000（ Configuration failure）
- Read Configuration:
- Downlink： 024E000000000000000000
- Response： 824E003C003C0100000000（ 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. MaxTime sleeping sleeping
Note:
- 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
This product does not have a waterproof function. After the screening is
completed, please place it indoors. 
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 gets wet, 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.