Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual WISENMESHNET L-Series Omni Tilt &
Distance Sensor Node User Manual Model Name:6F08 Wuxi Wisen Innovation Co., Ltd. November 2019 www.wisencn.com Page - 1 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual Revision History and Clarification Revisions 1st Issue Written By Revised By Xiaoyan Huang Dr. Yan Wu Rev. V1.0 Issue Date 01/11/2019 Document Definition:
It defines the specifications (i.e., introduction, technical features, deployment and maintenance methods) of the WISENMESHNET Omni Tilt & Distance Sensor Node, which is one of the key components in WISENMESHNET Low Power, Intelligent, Wireless Sensor Network (WSN) system. It is responsible to:
Sample data from its internal laser distance sensor and tilt angle detection sensor;
Form a time-synchronized Wireless Sensor Network with others nodes in the system;
Transmit the data packet to a gateway. Scope Customer Site Project Managers and Engineers, Wisen Service Engineers, etc. www.wisencn.com Page - 2 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual Table of Contents 1. Product Introduction................................................................................................................................................... - 4 -
2. System Structure Layout ............................................................................................................................................. - 5 -
3. Node & Radio Features ............................................................................................................................................... - 6 -
4. Terminologies .............................................................................................................................................................. - 7 -
5. Operation Procedures ................................................................................................................................................. - 8 -
5.1System Deployment Notifications.................................................................................................................. - 8 -
5.2Reading Conversion to Structural Tilt Direction............................................................................................. - 9 -
5.3Laser Distance Warning and Error Code ........................................................................................................ - 9 -
5.4Deployment Procedures .............................................................................................................................. - 11 -
5.5Mounting Options ........................................................................................................................................ - 11 -
6. General Maintenance and Notification ..................................................................................................................... - 12 -
7. Package and Accessories ........................................................................................................................................... - 13 -
8. Safety and Warning ................................................................................................................................................... - 13 -
9. Contact ...................................................................................................................................................................... - 14 -
www.wisencn.com Page - 3 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 1. Product Introduction The WISENMESHNET Omni Tilt & Distance Sensor Node is one of the key products in our patented WISENMESHNET geotechnical safety monitoring system. Working together with the WISENMESHNET gateway product and node products, it intelligently delivers the real-time distance change between any two points in space of a structure to the information centre. The WISENMESHNET Omni Tilt & Distance Sensor Node operates using our core technology, i.e., the WISENMESHNET Low Power, Intelligent, Wireless Sensor Network protocol, together with its internal high precision Laser Distance and MEMS Omni tilt sensing module plus power unit. 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 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. Omni Tilt & Distance Sensor Node Overview. WISENMESHNET Omni Tilt Sensor Node is often used in long term distance monitoring between two specific points, such as horizontal convergence of a tunnel. www.wisencn.com Page - 4 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 2. System Structure Layout www.wisencn.com Page - 5 - of 15 Figure 2. System Structure Layout. Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 3. Node & Radio Features Node Features:
Basics 6F07 6F08 Battery Power Qty. x 1 (3.6V Lithium primary D-Cell ER34615) Accuracy Stop Voltage Mesh Stop Voltage Battery Connection 2.7VDC 2.1VDC Standard Aluminium Battery Holder Working Current (DC) Max. 350mA (Typ. 250mA) Local Storage L x W x H Weight Primary Sensor Sensor Type Laser Class Laser Range Laser Accuracy Laser Resolution Min. 450 Messages during Meshing 100 x 100 x 60mm
<= 0.65kg Distance Class 2 0.05m-33m 0.05m-100m Better than +/-1.0mm (Typical 0.5mm) 0.1mm Laser Lens Durability
>= 500Hrs@3Hz@50C or 2500Hrs@3Hz@25C Standard System Parameter Tilt Sensor Tilt Range Temperature Voltage WSN Interface X-axis; Y-axis; Z-axis Tilt Values Range: -90 to +90;
Accuracy: better than 0.01 (36 or 0.1745mm/m) over 1; Resolution: 0.001. Range: -40 to 85C; Accuracy: +/-1C; Resolution: 0.1C Accuracy: +/-0.1V WSN Protocol WISENMESHNET Protocol Re-Calibration Method Inspection Period Every 3 Years by Manufacturer (or inspected by arranged methods) Industrial Standard Casing and Painting Materials Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating) www.wisencn.com Page - 6 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual IP Rating Operating Temperature Radio Features:
FCC 915MHz System Radio Band 902-928MHz Central Frequency (Default) 905/910/915/920/925MHz Default Transmit Power 15dBm Receive Sensitivity Bandwidth Transmission Speed No. of Mesh Hop*
Supported Sampling Interval Antenna Description
>= IP66
-10 to 50C
-112dBm 500kHz 19.2kb/s 6 Hops 1-60mins Mesh Antenna Omni-directional (20cm in length) or Customised Antenna Connector SMA (M)
* E.g., the radio link from a gateway to the 1st layer node is called the 1st hop. 4. Terminologies www.wisencn.com Page - 7 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual Figure 3. Omni Tilt & Distance Sensor Node Internal Configuration Terminologies, where:
No. 1 2 3 4 5 6 Terminology Mesh Antenna On/Off Switch Laser Distance Sensor Laser Pointer Switch, i.e., laser constantly on during installation Mesh Program Port ER 34615 3.6V D Cell Battery 5. Operation Procedures 5.1System Deployment Notifications 1) Location: The deployment location of a Omni Tilt & Distance Sensor Node is usually determined by the desired monitoring or inspection location;
2) Before any Omni Tilt & Distance Sensor Node is switched on, a gateway must be deployed, powered on and proven to be working properly. Otherwise, the nodes will need to be switched off and on again after a gateway is switched on. So simply speaking, the rules to follow when deploying and turning on a WISENMESHNET system are:
Gateway first, then nearby nodes, then further nodes. 3) All the Omni Tilt & Distance Sensor Node should face to the same direction, and clear notes must be taken so that the Laser Distance Sensor direction of a monitored structure can be correctly interpreted;
4) The Omni Tilt & Distance Sensor Nodes must be oriented with at least one axis marked on the label parallel to the horizontal plane, so that the tilting angle data can be easily recognized and interpreted;
5) All the Serial Numbers of the Omni Tilt & Distance Sensor Nodes must be recorded against their site references;
6) All the node should have its antenna point upwards/downwards. www.wisencn.com Page - 8 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 5.2Reading Conversion to Structural Tilt Direction When holding the User Manual page horizontally, then when X-axis arrow rotates around 0-dot into the paper plane, the readings of x decreases. Figure 4. Axis marks on the product label. 5.3Laser Distance Warning and Error Code Warning!
A. This is an automated system, the laser beam must be set to point at an appropriate non-reflective surface;
B. The protection window glass on a node must be kept clear all the time;
C. Distance 0mm starting plane: plane of the protection window glass. Special Notice Laser_Pointing_Mode Switch: It sets laser into pointing mode. By default, it is in switched off state (i.e., empty circle sign). Switch location is highlighted in the figure below. It can be switched on/off before/after a node's power-on. This pointing mode only becomes active after a valid laser reading is achieved. Note: please do switch it off after an installation is completed, otherwise, the battery life is significantly shortened. Laser front Lenses Protection Cover: All our laser nodes are shipped with their individual Protection Cover (of a 3M www.wisencn.com Page - 9 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual Double Coated Tissue Tape at one side). Once a battery is installed, node is powered on, and lid is screwed on properly. Then glue the cover onto the node as shown in the figure below. It protects the lenses from dust, heat and potential damage. Error Code Instructions Code_Info Description Node is working in a good condition Notice
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00 01 02 03 Target moving too fast or beam interrupt Repeat measurement, use tripod (@E260) Signal too low or distance out of range Use special target plate (@E255) Signal too high Avoid high reflecting surfaces (@E256) Cable may have gone loose or check if there 04 Time out on reply is any bad physical connection or too far out of range (e.g., point to the sky) (Wisen) 05 Single reading achieved Single success on the sampling procedure. 06 Max-Min>2xError Tolerance The difference of sample values is too large, repeat measurement or use tripod. (Wisen) 07 08 09 10 11 12 13 14 15 Unknown command or wrong parameter Use correct syntax (@E203) Error on serial communication Check communication (@E220) Temperature too high Temperature too low Cool down module (@E252) Warm up module (@E253) Voltage supply too low Improve voltage supply quality (@E254) Too much background light Protect target against sunlight (@E257) Laser error Module defect (@E284) APD-voltage cant be adjusted correctly Module defect (@E288) Flash configuration error Power down and up again (@E289) www.wisencn.com Page - 10 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual Unknown command or wrong parameter from laser 16 24 74 76 78 module Checksum error Change to a new battery (Wisen) Change to a new battery (@E224) No EEPROM detected, code has to be loaded by GSI Change to a new battery (@E274) Read of code from EEPROM wrong Change to a new battery (@E276) EEPROM error which appears if something goes wrong during the flashing of the firmware Change to a new battery (@E278) 90 Calibration signal out of range Change to a new battery (@E290) The time period (in the unit of seconds) that a laser module has been switched on at each T. Laser Time Typically, of value: 2-3s. Sampling Status The number of samples that has been successfully measured. Typically, of value: 5. 5.4Deployment Procedures 1) Open the box: Take the node out of the package and open its lid;
2) Insert Battery: By default, a node 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 node;
Figure 4. Mesh Antenna. 4) Power On: switch on the Omni Tilt & Distance Sensor Node by On/Off Switch. Now you should be able to see 3 LEDs flashing 3 times, this means the node is on. Then switch off the node to save power if the gateway is off;
5) Tighten the 4 Cap-Hex-Head screws of the lid to secure the enclosure IP rating;
6) To validate the sensor data, please visit WISENMESHNET Visualisation Platform for further details. 5.5Mounting Options The node fixings must be rigid for the sensor to measure accurate data. Movement in the fixings will affect the www.wisencn.com Page - 11 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual readings. The Omni Tilt & Distance Sensor Nodes must be oriented with at least one axis marked on the label parallel to the horizontal plane, so that the tilting angle data can be easily recognized and interpreted. 6. General Maintenance and Notification 1) Once an Omni Tilt & Distance Sensor Node 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) Please do take special notice on Laser Radiation matter with this lase node. Do NOT start into beam. 4) Due to the discharge characteristics of the recommended battery, a battery replacement should be carried out when a node reported voltage reaches 2.7V, at which point you have approximately 3 weeks to change the battery;
5) 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 WISENMESHNET protocol will send you a warning then it will enter a deep sleep mode until a new battery is installed;
6) If the data from nodes are shown unexpected results or are not being sent back to the Wisen gateway, 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 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 Omni Tilt & Distance Sensor Node has visible external damage;
www.wisencn.com Page - 12 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 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
:
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 WISENMESHNET Omni Tilt & Distance Sensor Node 100x100x60 Mesh Antenna Dust Cover for Laser Front Glass Cap-Hex-Head Screw 200
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M6x14 1 1 1 4 User Manual*
Downloadable from WISENMESHNET Inspection Report*
Visualisation Platform. 2 3 4 5 6 8. Safety and Warning Warning: Please read the following instructions carefully. 1Operation Safety www.wisencn.com Page - 13 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 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. 2Electric Safety To install the battery into a holder, please follow the + (positive) and - (negative) signs in any Wisen product. 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. 3Warning 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. 4Caution 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
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Email: marketing@wisencn.com www.wisencn.com Page - 14 - of 15 Wisen Innovation Technical Doc. No.2019 WISENMESHNET L-Series Omni Tilt & Distance Sensor Node - User Manual 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. www.wisencn.com Page - 15 - of 15