Wisen Vision Unit User manual
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 :
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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 and Accessories
Standard:
No.
Items
Dimension (mm)
Qty.
1
Vision Unit
180x140x60
1
3
4G Antenna
200
1
5
Cap-Hex-Head Screw
M6x14
4
6
User Manual*
Downloadable from Wisen
Visualisation Platform.
7
Inspection Report*
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 procedures and installations are correctly carried out. The communication cable and the case
must be grounded.
This product has been designed to meet a certain water-proof level. However, it becomes water vulnerable when
the lid is open or if the cable gland has not been sealed properly.
2）Electric Safety
To install the battery into a holder, please follow the “+” (positive) and “-” (negative) signs in any Wisen product.
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Wrong orientation of a battery could potential cause unit damage. Notice : The orientation of battery can vary
among products.
When disconnecting the battery, please take special care not to apply excessive force, otherwise the battery
holder and the nearby circuitry may be damaged.
3）Warning
The battery in the product has a relatively high capacity, so please take special care during storage and usage.
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 held responsible for any damage and injury caused
to the users.
4）Caution
Danger of explosion if battery is incorrectly replaced. Replace only with the type recommended by the
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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