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netvox R718E User Manual

Wireless accelerometer and surface temperature sensor
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R718E
Wireless Activity Detection and Temperature Sensor
Wireless Accelerometer and
Surface Temperature Sensor
R718E
User Manual
Copyright©Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained in strict
confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX Technology. The specifications
are subject to change without prior notice.

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Summary of Contents for netvox R718E

  • Page 1 This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX Technology. The specifications...
  • Page 2 4. Setup Instructions ............................. 4 5. Data Report .............................. 5 5.1 Calibration ............................6 5.2 The X, Y, Z axis direction of R718E ....................6 5.3 Example of ReportDataCmd ......................7 5.4 Example of ConfigureCmd ......................10 5.5 Example of Restore Report ......................12 5.6 Set/GetSensorAlarmThresholdCmd ....................
  • Page 3 1. Introduction The R718E is identified as a LoRaWAN Class A device with three-axis acceleration, temperature and compatible with LoRaWAN protocol. When the device moves or vibrates over threshold value, it immediately reports the temperature, acceleration and velocity of the X, Y, and Z axes.
  • Page 4 ⚫ Compatible with LoRaWAN Class A ⚫ Frequency hopping spread spectrum technology ⚫ Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne ⚫ Low power consumption and long battery life Note: Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html for detailed information about battery life.
  • Page 5 4. Setup Instructions On/Off Power on Insert batteries. (Users may need a screwdriver to open) Turn on Press and hold the function key for 3 seconds until the green indicator flashes once. Turn off Press and hold the function key for 5 seconds until the green indicator flashes 20 times. (Reset to factory setting) Power off Remove Batteries.
  • Page 6 Note: a. The device report interval will be programmed based on the default firmware which may vary. b. The interval between two reports must be the minimum time. c. Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver http://cmddoc.netvoxcloud.com/cmddoc to resolve uplink data.
  • Page 7 The 0g offset is an important accelerometer indicator because it defines the baseline used to measure acceleration. After installing R718E, users need to let the device rest for 1 minute, and then power on. Then, turn on the device and wait for the device to take 1 minute to join the network.
  • Page 8 When Report Type=0x01 is data packet. If the device data exceeds 11 bytes or there are shared data packets, the Report Type will have different values. b. R718E value uses big-endian computing. c. Because of the length limitation of R718E instruction. Therefore, R718E sends out 2 bytes and adds 0 to the data to form 4 bytes of float32.
  • Page 9 Bit6-7: Reserved) Bit6-7: Reserved) Example of Uplink 1: 011C019F303F1C3F654001 byte (01): Version byte (1C): DeviceType — R718E byte (01): ReportType byte (9F): Battery－3.1v (low voltage) , 9F Hex = 31 Dec 31*0.1v=3.1v byte (303F): Acceleration X, float32(3F300000) = 0.68750000 m/s byte (1C3F): Acceleration Y, float32(3F1C0000) = 0.60937500 m/s...
  • Page 10 Example of Uplink 2: 011C02B03EC73EBB3F014E byte (01): Version byte (1C): DeviceType — R718E byte (02): ReportType byte (B03E): Velocity X, float32(3EB00000) = 0.34375000 mm/s byte (C73E): Velocity Y, float32(3EC70000) = 0.38867188mm/s byte (BB3F): Velocity Z, float32(3FBB0000) = 1.46093750mm/s byte (014E): Temperature — 33.4°C, 014E(HEX)=334(DEC), 334*0.1°C =33.4°C...
  • Page 11 (9 Bytes, Fixed 0x00) Acceleration MinTime MaxTime BatteryChange Reserved Change ReadConfig (2 Bytes, (2 Bytes, (1 Byte, (2 Bytes, 0x82 (2 Bytes, R718E 0x1C ReportRsp unit: s) unit: s) unit: 0.1v) Fixed 0x00) unit: m/s2) SetActive ActiveThreshold InActiveThreshold Reserved 0x03 ThresholdReq...
  • Page 12 (2) Read device parameters Downlink: 021C000000000000000000 Response: 821C003C003C0100010FA0(current device parameters) (3) Configure device parameters ActiveThreshold= 0x0010 (16); InActiveThreshold= 0x000D (13) Downlink: 031C0010000D0000000000 Response: 831C000000000000000000 (configuration success) 831C010000000000000000 (configuration fail) Note: a. If the critical value is 10m/s , the ActiveThreshold will be 10/9.8/0.0625 = 16.32. Round 16.32 to the nearest whole number.
  • Page 13 0x01: A report is sent when the device detects vibration, and when the vibration stops. (The function of Restore is supported by the firmware version after 20200518 version) (1) Configure DO report when sensor restore (When the vibration stops, R718E will report an uplink package) Downlink: 071C010000000000000000...
  • Page 14 5.6 Set/GetSensorAlarmThresholdCmd Fport: 0x10 CmdID CmdDescriptor Payload (10 Bytes) (1 Byte) SensorType (1 Byte) SensorHighThreshold SensorLowThreshold Channel 0x00_Disable ALL (4 Bytes) (4 Bytes) (1 Byte) SetSensorAlarm SensorthresholdSet unit: Acceleration_m/s unit: Acceleration_m/s 0x01 0x00_Channel1, ThresholdReq Velocity_mm/s, Velocity_mm/s, 0x01_Chanel2, 0x0C_Acceleration, Angle_0.005° Angle_0.005° 0x02_Channel3 0x0D_Velocity, 0x0E_Angle...
  • Page 15 5.7 Example of GlobalCalibrateCmd FPort: 0x0E Sensor Description CmdID PayLoad (Fix = 9 Bytes) Type Channel Multiplier Divisor Reserved SetGlobalCalibrate (1 Byte) DeltValue 0x01 (2 bytes, (2 bytes, (2 Bytes, 0_Channel1 (2 bytes, Signed) Unsigned) Unsigned) Fixed 0x00) 1_Channel2, etc. Channel (1 Byte) Reserved SetGlobalCalibrate...
  • Page 16 (2) The original value of Angle_X = 0°. When the calibration decreases by 1°, the device reports -1°. SetGlobalCalibrateReq Multiplier =0x0001, Divisor = 0x0001, DeltValue = 0xFF38 Downlink: 01370000010001FF380000 Response: 8137000000000000000000 GetGlobalCalibrateReq Downlink: 0237000000000000000000 Response: 82370000010001FF380000 (3) Clear all calibration (AngleX = 0°) ClearGlobalCalibrateReq Downlink: 0300000000000000000000 Response: 8300000000000000000000...
  • Page 17 5.8 Example of NetvoxLoRaWANRejoin Check if the device is still in the network. If the device is disconnected, it will automatically rejoin back to the network. Fport: 0x20 CmdID CmdDescriptor Payload (1 byte) SetNetvoxLoRaWAN 0x01 RejoinCheckPeriod (4 Bytes, Unit: 1s) RejoinThreshold (1 Byte) RejoinReq SetNetvoxLoRaWAN...
  • Page 18 (1) Command Configuration Set RejoinCheckPeriod = 3600s (0x00000E10), RejoinThreshold = 3 times Downlink: 0100000E1003 Response: 810000000000 (Configuration success) 810100000000 (Configuration failure) (2) Read current configuration (RejoinCheckPeriod and RejoinThreshold) Downlink: 020000000000 Response: 8200000E1003 (3) Configure Rejoin Time Rejoin Time = 0x0001 (1 min), 2 Rejoin Time = 0x0002 (2 mins), 3 Rejoin Time = 0x0003 (3 mins), Rejoin Time = 0x0004 (4 mins), 5...
  • Page 19 5.9 Example for MinTime/MaxTime logic Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V MaxTime MaxTime sleeping (MinTime) sleeping (MinTime) Wakes up and collect data Wakes up and collect data Wake up and collect data REPORTS 3.6V REPORTS 3.5V REPORTS 3.6V...
  • Page 20 Notes: (1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect data. (2) The data collected is compared with the last data reported. If the data variation is greater than the ReportableChange value, the device reports according to MinTime interval.
  • Page 21 In the case of detecting if the generator is working normally, it is recommended to install R718E horizontal while the generator is power-off and in static status. After installing and fixing R718E, please turn on the device. After the device is joined, one minute later, R718E would perform the calibration of the device (the device cannot be moved after the calibration.
  • Page 22 InActiveThreshold), a new round of duration starts and continues until the 3-axis acceleration is lower than the InActiveThreshold for more than 5 seconds. b. R718E will send two data packets: (1) the 3-axis acceleration; (2) 3-axis velocity and temperature (sent 10 seconds after 3-axis acceleration) Note: a.
  • Page 23 8. Information about Battery Passivation Many Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many advantages including low self-discharge rate and high energy density. However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium anode and thionyl chloride if they are in storage for a long time or if the storage temperature is too high.
  • Page 24 9. Important Maintenance Instructions Kindly pay attention to the following 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.