netvox R719A User manual

Wireless Surface-Mounted Parking Sensor
R719A
Wireless Surface-Mounted
Parking Sensor
R719A
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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Table of Contents
1. Introduction..............................................................................................................................2
2. Appearance...............................................................................................................................2
3. Features....................................................................................................................................3
4. Set up Instruction.....................................................................................................................3
5. Data Report..............................................................................................................................5
5.1 Example of ReportDataCmd..............................................................................................5
5.2 Example of Report Configuration......................................................................................7
5.3 Geomagnetic Threshold Configuration..............................................................................8
5.4 Example for MinTime/MaxTime logic..............................................................................8
6. Installation..............................................................................................................................10
7. Information about Battery Installation...................................................................................11
7.1 Installation Methods.........................................................................................................13
7.2. Device Interference Source.............................................................................................13
7.3 Precautions For Battery Use ............................................................................................14
8. Important Maintenance Instruction........................................................................................14

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1. Introduction
The R719A is a parking monitoring device which is the Class A device based on the LoRaWANTM protocol of Netvox.
It can monitor whether there is a parking space available in the parking lot. It is compatible with the LoRaWAN protocol.
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.
2. Appearance
Magnetic sensing spot

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3. Features
⚫SX1276 wireless communication module
⚫The magnet approach to the top cover to turn on/off
⚫2 ER18505 battery (3.6V/section) in parallel
⚫Geomagnetic and radar sensor detection
⚫IP67 rating
⚫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
⚫Improved power management for longer battery life
Note: Please refer to http://www.netvox.com.tw/electric/electric_calc.html. At this website, users can find battery life for various models
at different configurations.
1. Actual range may vary depending on the environment.
2. Battery life is determined by sensor reporting frequency and other variables.
4. Set up Instruction
On/Off
Power on
Insert batteries. (Users may need a screwdriver to open battery cover.)
Turn on
The magnet approach to the top cover for 3 seconds.
Note: The device is in the geomagnetic initialization state within 3 minutes after turning on.
Please do not move the device or cause changes in the surrounding magnetic field.
Turn off (factory resetting)
The magnet approach to the top cover for 10 seconds
Power off
Remove Batteries.
Note
1. The device will be off after removing the battery and insert it again.
2. It is suggested to wait for at least 10 seconds between turning the device on and off.
3. To enter the engineering test mode: At 1st to 5th second after power on
Network Joining
Never joined the network
Turn on the device, and it will search for the network to join.
Had joined the network
(not back to factory setting)
Turn on the device, and it will search for the previous network to join.

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Reed Switch Function
The magnet close to the top
cover for 10 seconds
Restore to factory setting / Turn off
The magnet close to the top
cover shortly
The device is in the network: sends a report
Sleeping Mode
The device is on and in the
network
Sleeping period: Min Interval.
When the reportchange exceeds setting value: send a data report according to Min Interval.
Note: Suggest to remove batteries if the device is not in use
Suggest to check device verification on the gateway.
Low Battery Threshold
Low Voltage
3.2 V
Note: Could use the magnet of R311A as the magnet mentioned in the article. For specific operation, please refer to the installation
instruction picture below.

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5. Data Report
Data report configuration and sending period are as follows:
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
5.1 Example of ReportDataCmd
FPort: 0x06
Bytes
1
1
1
Var (Fix=8 Bytes)
Version
DeviceType
ReportType
NetvoxPayLoadData
Version–1 bytes –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType–1 byte –Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype V1.9.doc
ReportType –1 byte –the Presention of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData–Fixed bytes (Fixed =8bytes)
When the device is turned on, it will immediately send a version package and a data report of parking status and battery voltage.
The device sends data in the default configuration before any configuration is done.
Default setting:
ReportMaxTime: 0xE10 (3600s)
ReportMinTime: 0xE10 (3600s) (to detect the current voltage value per Min Interval)
Battery voltage: 0x01 (0.1V)
Geomagnetic Detect Threshold: 0x28 (40) *Range:0x14-0xFFFF (0x14 is the most sensitivity)
Vehicle parking trigger:
When a car parked, 15 seconds later, sensor would send a data “CarOnOff”=01, which means that the space is parked.
When a car left, 15 seconds later, sensor would send a data “CarOnOff”=00, which means that the space is empty to park.
The parking space status will be reported according to configuration.
Note:
The device report interval will be programmed based on the default firmware which may vary.
The interval between two reports must be ReportMinTime.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://cmddoc.netvoxcloud.com/cmddoc to resolve uplink data.

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Tips
1. Battery Voltage:
The voltage value is bit 0 ~ bit 6, bit 7=0 is normal voltage, and bit 7=1 is low voltage.
Battery=0xA0, binary=1010 0000, if bit 7= 1, it means low voltage.
The actual voltage is 0010 0000 = 0x20 = 32, 32*0.1v =3.2v
2. Version Packet:
When Report Type=0x00 is the version packet, such as 0159000A0B202005200000, the firmware version is 2020.05.20.
3. Data Packet:
When Report Type=0x01 is data packet.
Device
DeviceType
ReportType
NetvoxPayLoadData
R719A
0x59
0x01
Battery
(1Byte,
unit:0.1V)
CarOnOff
(1Byte 0:off
1:on)
Reserved For
Netvox Internal
Use (1Byte)
(It can be ignored
in user’s payload
decoder)
Reserved For
Netvox Internal
Use (3Byte)
(It can be ignored
in user’s payload
decoder)
Reserved For
Netvox Internal
Use (2Bytes)
(It can be ignored
in user’s payload
decoder)
Example of Uplink: 0159012401000000000000
1st byte (01): Version
2nd byte (59): DeviceType 0x59 —R719A
3rd byte (01): ReportType
4th byte (24): 3.6 V —24(Hex) = 36 (Dec), 36*0.1v = 3.6v
5th byte (01): CarOnOff —on
6th byte (00): Reserved For Netvox Internal Use
7th ~ 9th byte (000000): Reserved For Netvox Internal Use
10th ~ 11th byte (0000): Reserved For Netvox Internal Use

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5.2 Example of Report Configuration
FPort: 0x07
Bytes
1
1
Var (Fix=8 Bytes)
CmdID
DeviceType
NetvoxPayLoadData
CmdID–1 byte
DeviceType–1 byte –Device Type of Device
The devicetype is listed in Netvox LoRaWAN Application Devicetype.doc
NetvoxPayLoadData–var bytes (Max=9bytes)
Description
Device
Cmd
ID
Device
Type
NetvoxPayLoadData
Config
ReportReq
R719A
0x01
0x59
MinTime
(2bytes Unit:s)
MaxTime
(2bytes Unit:s)
BatteryChange
(1byte Unit:0.1v)
Reserved
(4Bytes,Fixed 0x00)
Config
ReportRsp
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)
(1) Configure device parameters MinTime = 1min (003C), MaxTime = 1min (003C), BatteryChange = 0.1v (01),
Downlink: 0159003C003C0100000000
The device returns:
8159000000000000000000 (configuration successful)
8159010000000000000000 (configuration failed)
(2) Read device parameters
Downlink: 0259000000000000000000
The device returns:
8259003C003C0100000000 (current device configuration parameters)

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5.3 Geomagnetic Threshold Configuration
Fport: 0x07 (It is not recommended to modify the default settings of the device to prevent incorrect setting, which will cause false
detection of parking status)
Description
Device
Cmd
ID
Device
Type
NetvoxPayLoadData
Description
SetDetect
ThresholdReq
R719A
0x03
0x59
DetectThreshold(2bytes)
Reserved (7Bytes,Fixed 0x00)
SetDetect
ThresholdRsp
0x83
Status(0x00_success)
Reserved (8Bytes,Fixed 0x00)
GetDetect
ThresholdReq
0x04
Reserved (9Bytes,Fixed 0x00)
GetDetect
ThresholdRsp
0x84
DetectThreshold(2bytes)
Reserved (7Bytes,Fixed 0x00)
(1) Configure the device geomagnetic threshold parameter to 50 (default is 40)
Downlink: 0359003200000000000000
The device returns:
8359000000000000000000 (configuration successful)
8359010000000000000000 (configuration failed)
(2) Read device parameters
Downlink: 0459000000000000000000
The device returns:
8459003200000000000000 (current device configuration parameters)
5.4 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)
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.
Wake up and collect data
REPORTS 3.6V
Wakes up and collect data
REPORTS 3.6V
Wakes up and collect data
REPORTS 3.6V

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Sleeping(MinTime) sleeping sleeping sleeping
0H 15thM 30th M 45th M 1H 2H
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
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. If the data variation is not greater than the last data reported, the device
reports according to MaxTime interval.
3) 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.
4) 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.
Wakes up and collects data
3.6V Does not report
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORT 3.6V
Wakes up and
collects data
REPORTS 3.6V
Wakes up and collects data
3.5V |3.5-3.6|=0.1
REPORTS 3.5V
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
REPORTS 3.5V
Wakes up and
collects data
3.6V
Does not report
Users push the button,
REPORTS 3.5V
Recalculate MaxTime.
MaxTime

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6. Installation
2. Place a magnet above the reed switch (the U-shaped part
of the device) for 3 seconds to turn it on, connect to the
network, join to the gateway to check if the device is
operating normally and detecting the vehicle correctly,
and the installation is completed.
Note: The magnet is a magnet accessory that comes with
the batch.
3. When the device detects that the car has entered the
parking space for 15 seconds, the reported data-
CarOnOff bit is “01”. When the car leaves the parking
space for 15 seconds, the reported data-- CarOnOff bit is
“00”.
4. R719A can be applied to the smart parking lot.
1. R719A is installed in the middle of the parking space with 4
screws ( purchased by users).
Note:
⚫It is recommended to install the device in the middle of the
parking space for the best results.
⚫Make sure that there is no obstruction above the device when
the device is turned on.
⚫The device is turned off by default. After the device is
installed and turned on, the device needs three minutes to
warm up. After three minutes, the geomagnetic field can
work normally.
⚫After fixed installation and startup, do not use magnetic
objects near the device. Otherwise, it will affect the
initialization of the device and cause the device to
malfunction.
⚫If users need to move the device, please power off the device,
restart it after fixed installation, and wait for the device to
initialize.
⚫Ensure that when the device is turned on and the
geomagnetism configures the initial magnetic field within
three minutes, it cannot be parked above the device, and
there is no interference source within 5 meters of the
surrounding area.
Screw Fixation

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7. Information about Battery Installation
Warning: 1. When replacing the battery, it must be operated by professionals.
2. Please use two ER18505 batteries for the device, and a single battery is 3.6V.
3. Please note that the positive and negative poles of the battery are not reversed.
Step 1: Unscrew the six screws of the rear lock cover on the back of the device with a screwdriver as the red area in Figure 1.
Figure 1
Step 2: Remove the middle plastic cover. The plastic cover is shown in the red area in Figure 2.
Please note that the plastic cover is rectangular and pay attention to the direction when placing it.
Figure 2

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Step 3: Put the battery into the battery slot of the device. The side of the battery slot marked with is the positive pole, and
the side marked with is the negative pole (with a spring). The side with of the battery is the positive electrode,
and the side with is the negative electrode as Figure 3. Please note that the positive and negative poles of the battery
should not be reversed.
Figure 3 Figure4
Step 4: After installing the battery as Figure 5. Close the plastic cover and the back cover again, and tighten the M6 hex expansion
screws as Figure 6.
Figure 5 Figure 6
Positive Pole
Negative Pole
Positive Electrode
Negative Electrode

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7.1 Installation Methods
There are three installation methods: fully buried installation, semi-buried installation and direct installation.
The installation methods are as follows.
Note: To install the R719A on concrete or asphalt, users need to screw the M6 hex expansion screws for direct installation and
drilling. Users could use the resin to fill the holes after drilling.
7.2. Device Interference Source
1. Metal materials such as aluminum alloy, ironware and copper plate shall not appear around and above the device.
2. There shall be no ponding or snow around the device, and there shall be no objects with water above the device, such as wet
leaves, wet paper towels, etc.
3. The surrounding environment of the device shall be kept clean and the covering above the device shall be avoided as far as
possible.
4. Interference Test Scenario:
Interference Test Scenario
Result
Conclusion
1. Cover with foam board/ plastic sheets/
cardboard/ wooden boards/ plastic cover/
foam mats/ dry branches, or there is
aluminum alloy around.
When vehicles enter and exit, the parking space status can
be reported normally, and the reported parking space status
is consistent with the actual parking space status.
✓
2. Covered with aluminum alloy/ iron
If the vehicle is not parked, it reports that there is a car in
the parking space.
✕
3. Covered with ice (about 5cm thickness)
The parking space status can be reported when vehicles
enter and leave, but sometimes the radar signal.
∆
4. Covered with copper board
The radar is covered and the signal is interfered.
✕
5. Covered with wet branches and flooded
The radar signal is shielded and there is no signal.
✕
Direct Installation
Semi-Buried Installation
Fully Buried Installation
Ground

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7.3 Precautions For Battery Use
If the battery needs to be replaced within 10 minutes after the device is turned on, users need to the magnet approach to the top cover
for 10 seconds to restore the factory settings after replacing the battery. (The hardware has its own anti-battery passivation power
supply to actively eliminate the battery hysteresis.) Then, turn on the device, and it can work normally.
Note:
Please do not disassemble the device unless it is required to replace the batteries.
Do not touch the waterproof gasket when replacing the batteries.
Please use suitable screwdriver to tighten the screws (if using an electric screwdriver, it is recommended to set the torque as 4kgf)
to ensure the device is impermeable.
8. 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.