Wisen WiSenMeshWAN 6003 User manual
Wisen Innovation Technical Doc. No.2021 WiSenMeshWAN® Mini Smart Gateway - User Manual
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Revision History and Clarification
Rev.
Issue Date
Revisions
Written By
Revised By
V1.0
17/11/2019
1st Issue
Xiaoyan Huang
Dr. Yan Wu
V1.1
04/08/2021
Minor wording changes.
Xinhu Nie
Dr. Yan Wu
Document Definition:
It defines the specifications (i.e., introduction, technical features, deployment and maintenance methods) of the
WiSenMeshWAN® Smart Gateway, which is one of the key components in WiSenMeshWAN®Low Power,
Intelligent, Wireless Sensor Network (WSN) Monitoring system. It is responsible to:
Form a time-synchronized WSN with all the nodes in the system;
Receive the data packets from all the nodes including sensor nodes and interface nodes;
Issue network command in order to optimise the network reliability, such as sampling interval,
frequency hop, relay period, RSSI threshold modifications, etc.;
Forward data and system information to a Windows laptop.
Scope:
Customer Site Project Managers and Engineers, Wisen Service Engineers, etc.
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Table of Contents
1. Product Introduction................................................................................................................................................... - 4 -
2. System Structure Layout ............................................................................................................................................. - 5 -
3. Gateway & Radio Features.......................................................................................................................................... - 6 -
4. Gateway Terminologies............................................................................................................................................... - 7 -
5. Operation Procedures ................................................................................................................................................. - 7 -
5.1．Gateway Location Choices............................................................................................................................. - 7 -
5.2．Deployment Procedures................................................................................................................................ - 8 -
6. General Maintenance and Notification....................................................................................................................... - 8 -
7. Package Information ................................................................................................................................................... - 9 -
8. Safety and Warning................................................................................................................................................... - 10 -
9. Contact...................................................................................................................................................................... - 10 -
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1. Product Introduction
The WiSenMeshWAN®Mini Smart Gateway is one of the key products in our patented
WiSenMeshWAN®geotechnical safety monitoring system. Working together with the WiSenMeshWAN®Node products,
it intelligently collects, converts and delivers the real-time information from nodes to a local PC via standard USB
connection. The WiSenMeshWAN®Mini Smart Gateway is powered by USB port (5VDC).
This product operates using our core technology, i.e., WiSenMeshWAN®Low Power, Intelligent, Wireless Sensor
Network protocol. This product satisfies the three fundamental identities of the system:
A. Network Life Span: to maximise battery life across the mesh network as a whole;
B. Network Data Arrival Rate: to minimise data packet loss;
C. Single Node Environmental Coverage: to maximise radio coverage.
Our product is small in size, reliable in performance, easy for maintenance, and has strong immunity to
radio-interference.
Figure 1. Mini Smart Gateway Overview.
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2. System Structure Layout
Figure 2. System Structure Layout.
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3. Gateway & Radio Features
Gateway Features:
Basics
Primary Battery Power
USB 5VDC
L x W x H
52 x 50 x 40mm
Weight
< 80g
Cable Gland
Qty. 1 x USB Connection
Local Storage
N.A.
External Interface
Wired Port
USB
WSN Interface
WSN Protocol
WiSenMeshWAN® Protocol
Standard System Parameter
Temperature
Range: [-40, 85]° C , Accuracy: ±1°C (Typ. 0.5°C), Resolution: 0.1°C
Voltage
Accuracy: +/-0.1V
Re-Calibration Method
Inspection Period
Every 3 Years by Manufacturer (or inspected by arranged methods)
Industrial Standard
Casing and Painting Materials
PC
Operating Temperature
-40 to 85°C
Radio Features:
FCC 915MHz System
CE 868MHz System
Radio Band
902-928MHz
865-868MHz
Central Frequency (Default)
905/910/915/920/925MHz
865.75/866.25/866.75/867.25MHz
Default Transmit Power
18dBm
14dBm
Transmit Power Range
5-20dBm
Receive Sensitivity
-112dBm
Bandwidth
500kHz
Transmission Speed
19.2kb/s
No. of Mesh Hop*
6 Hops
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* E.g., the radio link from a gateway to the 1st layer node is called the 1st hop.
4. Gateway Terminologies
Figure 3. Gateway Internal Terminologies.
5. Operation Procedures
5.1．Gateway Location Choices
Location: There are two fundamental considerations that are used by Wisen to identify available location for a
Gateway:
1) Firstly, the mesh coverage is the primary factor to be considered. It is vital to arrange the wireless mesh
topology so that all the nodes in the system are connected. The recommended location of a Gateway is in the
centre of the network;
2) Secondly, Mini Smart Gateway should be closed to the PC or industrial computer. Make sure the USB cable is
as short as possible to reduce interference;
3) Serial Numbers of a Unit must be recorded against their site references;
Supported
Sampling Interval
1-60mins
Antenna Description
Mesh Antenna
Omni-directional (20cm in length) or Customised
Antenna Connector
Non-SMA (M)
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Once the location is chosen, you are ready to deploy your WiSenMeshWAN® system.
5.2．Deployment Procedures
1) Antenna Installation: screw the antennas firmly onto the Mini Gateway;
2) Power on: Connect the USB cable between Mini Gateway and PC;
Figure 4. USB Connections.
LED flashing sequence: You should see three Mesh LEDs flashing 3 times, then green LED on for 1s, then a quick
flash on the 3 LEDs, then Off. If not, unplug the gateway (to power off), and leave it fully discharged for 180s
before the next powering-on.
3) Gateway should have its antennas point upwards;
4) Open WISENMESHNET Standard Serial Port Monitoring Software in Windows PC to validate the gateway data.
6. General Maintenance and Notification
1) Once the WiSenMeshWAN®Smart Gateway is installed and working, please do not interfere with it unless it is
absolutely necessary;
2) The Gateway relies on radio signals to communicate with the nodes. It must be deployed before the nodes and
please ensure that it is not covered by any materials, which would block the radio signals, for example, chicken
wire, aluminum sheet hoardings, etc.;
3) If no data is received from the Gateway, then please carry out investigations in the following two stages:
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A. Remote Inspection of historical data, to identify:
a) Whether the heart-beat message has been sent back successfully at each time interval;
b) Whether the voltage in the heart-beat message is as expected, if not, please check the USB power
supply;
c) Whether the signal strength has become significantly weaker, if yes, please check the antenna has been
screwed on firmly;
B. On-site Inspection: if all above are good, please arrange for an on-site inspection to check:
a) Whether the Mini Gateway has visible external damage;
b) Whether the antenna is bent or damaged and the node (gateway or sensor node) is not blocked by
new construction, e.g., hoardings;
c) When it is possible, check that the signal strength is normal by using a spectrum analyser;
d) Whether any connectors are loose.
Notices :
i. Case One: If any change has been made from the list above, please inspect the data from the remote server;
ii. Case Two: If all the actions from the list above have not cured the problem, please contact Wisen. We will be
happy to help.
7. Package Information
Standard:
No.
Items
Dimension (mm)
Qty.
1
WiSenMeshWAN®Mini Smart Gateway
52x50x40
1
2
Mesh Antenna
200
1
3
User Manual*
Downloadable from Wisen
Visualisation Platform.
4
Inspection Report*
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8. Safety and Warning
Warning: Please read the following instructions carefully.
1）Operation Safety
Before taking any action, please read all the information provided carefully, and keep the guidance
documents safe;
Ensure that any procedure and installation are correctly carried out. This product has been designed to a
certain water-proof level. However, it is vulnerable to water ingress when the lid is open or if the cable gland
has not been sealed properly.
2）Warning
This product must not be disassembled under any circumstances, to do so will void the warranty and may
leave the product in a dangerous state;
If all the above are not followed, the manufacturer cannot be responsible for any damage and injury caused
to the users.
3）Caution
Danger of explosion if battery is incorrectly replaced. Replace only with the type recommended by the
manufacturer. Observe any warnings specified by the battery manufacturer;
When disposing of the batteries, please contact your local authorities or dealer and ask for the correct
method of disposal.
9. Contact
-Wuxi Wisen Innovation Co., Ltd.: www.wisencn.com
-Email: support@wisencn.com
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FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference that
may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with minimum distance 20cm between the radiator & your body.
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