Wisen Vision Unit User manual

Wisen Innovation Technical Doc. No.2021 WiSen® Vision Unit - User Manual
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WiSen® Vision Unit
User Manual
Wuxi Wisen Innovation Co., Ltd.
July 2021

Wisen Innovation Technical Doc. No.2021 WiSen® Vision Unit - User Manual
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Revision History and Clarification
Rev.
Issue Date
Revisions
Written By
Revised By
V1.0
12/07/2021
1st Issue
Xiaoyan Huang
Dr. Yan Wu
Document Definition:
It defines the specifications (i.e., introduction, technical features, deployment and maintenance methods) of the
WiSen® Vision Unit. It is responsible to:
When a Vision Unit is deployed at Control centre/Data centre, the LED warnings can be configured with
one or more projects. So that a visual and auditory warning system can be established in the centre.
This frees the operators from frequent checking of warning emails;
When a Vision Unit is deployed at Control centre/Data centre, the LED warnings can be configured with
one or more projects. So that a visual and auditory warning system can be established in the centre.
This frees the operators from frequent checking of warning emails;
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. Node & Radio Features ............................................................................................................................................... - 6 -
4. Terminologies.............................................................................................................................................................. - 8 -
5. Operation Procedures ................................................................................................................................................. - 9 -
5.1．System Deployment Notifications..................................................................................................................- 9 -
5.2．Deployment Procedures ................................................................................................................................- 9 -
5.3．Mounting Options........................................................................................................................................- 10 -
6. General Maintenance and Notification..................................................................................................................... - 10 -
7. Package and Accessories........................................................................................................................................... - 11 -
8. Safety and Warning................................................................................................................................................... - 11 -
9. Contact...................................................................................................................................................................... - 12 -

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1. Product Introduction
The WiSen® Vision Unit is one of the key products in our patented WiSen®geotechnical safety
monitoring system.
Our product has IP66 and is designed to work in a tough environment. It is small in size, reliable in performance, easy
for maintenance, has high precision during sampling, and has strong immunity to radio-interference.
Figure 1. Vision Unit Overview.
Note: Vision Unit relies on a stable 4G connection, so its image data can be transferred smoothly and furthermore,
the LED warnings can be received from a remote control centre.

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2. System Structure Layout
Figure 2. System Structure Layout.

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3. Node & Radio Features
Node Features:
Basics
Primary Battery Power
Qty. x 4 (3.6V Lithium primary D-Cell ER34615)
Secondary DC Power
7 - 32VDC @ Min. 2A (e.g. 110-240VAC to 12VDC adaptor) or Solar Unit
4G Network Stop Voltage
2.1V
Local Storage
≥180 days @T=10min, i.e., 26000 Images
L x W x H
180 x 140 x 60mm
Weight
≤ 2.0kg
Cable Gland
Qty. 1 x EMC-CMA12 for Camera connection;
Qty. 1 x EMC-CMA14 for external DC input power connection
Camera Mode (Factory Default Setting: Active Mode @ T=5min @ Lower Power LED Status)
Passive Mode & Battery
Life
Photo is not taken until a Photo-Taken command is sent, more specifically:
- At T < 5min, a photo comes back at close to real time, internal battery life ≈ 10 days;
- At T ≥ 5min, a photo comes back with a delay of 1-2Ts, internal battery life ≈ 44 days
@T=5min.
Active Mode & Battery
Life (@ 4G Connection)
Photo is automatically taken at every T.
Sampling Time Interval - T
No.
1min
3d
5min (Default Setting)
16d
15min
53d
30min
91d
60min
162d
24hr (@Low Power Green Mode)
5Yrs+
Sampling Time Interval T
[1min, 1day]. Notice: at both Active and Passive modes,
1. The bigger the T value is, the more delay a user has when getting a photo;
2. The bigger the T value is, the less power consumption a node is, i.e., internal battery
life can last longer.
Camera Image
Image sensor
CMOS 2MP Colour
Image resolutions
1920 x 1080

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Image compression
JPEG
Angle of view
Horizontal Plane 85°/ Vertical Plane 45°
Lens
3.6mm
External Cable Length
1.0m
Night vision image
Black & White
Night Vision Distance
1.0 to 8.0m
LEDS/Buzzer and On-Site Warning Issuing
Volume
Max. 90dB@10cm
No. of LEDs
LED x 3 of Green/Blue/Red Colours +
Low Power LED x 1 of Green
LED Flashing/Buzzer
Frequency
Red + Buzzer Warning (the highest warning level)
Twice at every 2s
Blue + Buzzer Warning
Once at every 3s
Green/Low Power Green Mode (normal level) No Buzzer
Once at every 4s
External Interface
Wireless Module
ONLY Wisen 7600E or plus Daughter Board @ Micro SIM card, WiFi module
Wired Port
RS232, Ethernet module
WSN Interface
Mesh Wireless Interface
WiSen® Protocol
Standard System Parameter
Temperature
Range: -40 to 85°C; Accuracy: ±1°C; Resolution: 0.1°C
Voltage
Accuracy: ±0.1V
Industrial Standard
Casing and Painting
Materials
Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating)
IP Rating
≥ IP66
Operating Temperature
-40 to 85°C
Fire Proof
Approved
Certificates
-

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4. Terminologies
Figure 3. 4-Channel Laser Distance Sensor Node Internal Configuration Terminologies, where:
No.
Terminology

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1
4G Daughter Board
2
LED Board
3
LED Switch
4
Camera wire terminal
5
Buzzer
6
Buzzer Switch
7
ON/OFF Switch
5. Operation Procedures
5.1．System Deployment Notifications
1) Location: The deployment location of a Vision Unit is usually determined by the desired monitoring or inspection
location;
2) Clear notes must be taken so that the Laser Units direction of a monitored structure can be correctly interpreted;
3) All the Serial Numbers of the Vision Unit must be recorded against their site references;
4) All the node should have its antenna point upwards/downwards.
5.2．Deployment Procedures
1) Open the box: Take the node out of the package and open its lid;
2) Insert Battery: By default, a unit does not contain a D-Cell battery. Therefore the battery needs to be inserted.
Notice : +ve and –ve orientation must be correct, otherwise, the internal circuit may be damaged;
3) Antenna Installation: screw the antenna tightly onto the unit;
4) Power On: switch on the Vision Unit by On/Off Switch. Now you should be able to see 3 LEDs flashing 3 times, this
means the node is on;
5) Tighten the 4 Cap-Hex-Head screws of the lid to secure the enclosure IP rating;
6) To validate the data/photo, please visit Wisen Visualisation Platform for further details.

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5.3．Mounting Options
The node fixings must be rigid for the sensor to measure accurate data. Movement in the fixings will affect the
readings.
6. General Maintenance and Notification
1) Once a Vision Unit is installed in the field, please minimise any man-made disturbance so that data
quality can be maintained;
2) Radio communication will be impaired if the antenna is covered by metal or very moist soil material;
3) Due to the discharge characteristics of the recommended battery, a battery replacement should be carried out;
4) Our product will use all the possible capacity in a battery down to a stop (minimum) voltage, which has been
specified in the Features table. When this occurs, our WiSen protocol will send you a warning then it will enter a
deep sleep mode until a new battery is installed;
5) If the data/photo from units are shown unexpected results or are not being sent back, then please carry out
investigation using the following two stage procedure:
A. Remote Inspection of historical data, to identify the following:
a) Whether the heart-beat message has been sent back successfully at each time interval;
b) Whether the battery voltage is too low, if yes, please change the battery unit;
c) Whether the 4G signal strength has become significantly weaker than it was previously. If yes, please
check the antenna has been screwed on firmly.
B. On-site Inspection: If all the above are good, please arrange an on-site inspection to check:
a) Whether the Vision Unit has visible external damage;
b) Check the box lid to see if it is firmly tightened;
c) Whether the antenna is bent or damaged and that the node is not blocked by new construction, e.g.,
hoardings;
d) When it is possible, check that the signal strength is normal by using a spectrum analyser;
e) Open the lid, to see whether the battery is firmly attached to its holder;
f) Use a multi-meter to measure the battery voltage. If it is below the stop (minimum) voltage, replace
the battery.
Notices :