> Evaluate the environmental and economical impacts of supply chain scenarios

Models and tools for simulation of supply chain scenarios have been developed focusing on the Swedish Wood Supply Chain (SWSC, consists of Sveaskog - Setra Malå sawmill - NorsjöTrä), both since it is the longest supply chain within the project and since the data collection for this supply chain was prioritised within the project to secure data availability as early as possible.

The results are divided in two parts:

• The forestry to industry simulation tool, which consists of three different sub-tools. The first sub-tool, TimAn, can generate simulated pri files. A pri file is containing data from a harvested stand and are normally generated by the harvester during harvesting, but the can also be generated by simulation with the TimAn tool. The second sub-tool is called PriAnalysis and it can generate so called extended pri files. The extended pri files contain a lot more information concerning individual log properties, calculated by statistical models. The third sub-tool is an additional SAS program that can generate so called superextended pri files. They contain even more additional data on individual log level.

• The sawmill to secondary manufacturer simulation tool, which uses extended pri files as input data and simulates the complete SWSC. The results from the tool are presented as environmental and economical Key Performance Indicators (KPIs). The user of the tool can modify the settings in the tool and study the change of the resulting KPIs. There are a number of different analysis functionalities implemented into the tool. The tool will be made available on the internet as a simplified web version (Currently under construction, planned release date is 2010-02-15).

Results on scenario calculations from the different tools are in progress and will be reported in a public deliverable (D3.9) in the beginning of 2010.



> Indisputable Key supply chain simulator


IK simulator


Now you've got the chance to test our simplified web version of the simulation tool developed within Indisputable Key.

Select your settings and see the effect on the Key Performance Indicators. Are you able to produce a high quality product to a low production cost while keeping the environmental impact down? The overall supply chain performance is indicated on the main page by colour (green=good, orange=acceptable and red=un-acceptable) for the three different categories Economy, Environment and Quality. It is also possible to drill down on a more detailed level to investigate which part of the supply chain and which use of resources that has the largest impact on the performance. After selecting your own choices for the different production stages and the cost/value of wood products, the you can see how they affect the supply chain performance as a result of changes in the Key Performance Indicators.

If you don't know how to use the simulator, start with reading the short manual by pressing the Get started button in the main page.

Welcome to try the simulator ! (http://iksim.ivl.se) (Note: This requires acceptance of downloading files to your computer)

We only allow one user at the time. If the simulator is busy, please try again later.

This web version of the simulator has been simplified and contains reduced functionality compared to the complete simulation tool developed in Indisputable Key. If you are interested in the full functionality simulator, see IVLs offering on "Evaluate the environmental and economical impacts of supply chain scenarios" in the "Offering" section.




> Architecture

architecture IK

IK Architecture : List of components



- IK Adaptors



- Traceability services

- Indisputable Key Architecture and standard for communication

One of the main objectives for Indisputable Key is to define a standard for exchanging B2B information related to traceability for the forest and wood industries. The D2.12 document describes the architecture defined in the project and the XML message used for information exchange. The standard is free to use. Download the document D2.12 Indisputable Key Architecture and standard for communication

- xml schema for the message

The xml schema for the message is defined in iadEvent.xsd (click to download) and definition for variables are defines in the XML schema iadDataDefinitions.xsd (click to download). The schemas are defined using Altova XMLspy. A 30 day evaluation version can be downloaded from www.altova.com. Free XML tools may be found at http://www.garshol.priv.no/xmltools/.


> Traceability solution for logs from the forest to the sawing at the saw mill using RFID

The traceability is based on automatic individual identification of logs. The logs are marked with RFID transponders using an applicator, either an automatic device or a manual tool. The unique ID code of the transponder is read with RFID readers in the harvester and at the saw mill. The associated data for the log is stored in database.

RFID marking of logs is based on the developed novel passive UHF transponder (two patents pending) made of pulping compatible materials. The wedge-shaped transponder is EPC Class 1 Generation 2 compatible and it is applied into the log end so that it is protected by wood for high survival in the logs during the transportation. The transponder reading range is 2-3 metres from moist wood at the European UHF RFID frequency band (865-868 MHz).

A prototype of an automatic applicator consisting of a transponder magazine and an applicator arm with an application tool was developed for log harvesters. A feeding mechanism transfers the transponder into the application tool in the arm, the arm is lowered and the log is moved against the arm so that the transponder is pressed into the log end. The log is then moved back and the transponder ID-code is read with an RFID reader antenna in the applicator arm. Finally, the arm is moved up for the next log. A simple tool for manual marking of logs by hitting the transponder into the log end was also developed.

A prototype of a robust shock and vibration tolerant RFID reader has been developed for use in the harvester. The reader was tested to survive the vibration and shock levels specified in ISO 15003 standard: 50 G shocks and 2 G vibrations @ 10-2000 Hz. The electronics are cased in robust water- and dust proof IP67 enclosure. Adaptive RF-front end (patent pending) that compensates the effects of metal in the proximity of the reader antenna is included into the reader.

RFID readers in robust metal casings with the antennas on the outer surface were used in the log sorting and in sawing at saw mills. The integrated reader assembly utilises commercial RFID readers and it is easily installed over the log conveyor as it requires only electric power and a network connection. In readability tests with logs marked with the transponders almost 100 % readability of fully functional transponders was observed.

RFID results IK



> Using traceability data to generate optimization models


- Improve your log handling – Predicting the drying rate in harvested round wood

The rate at which timber dries after harvesting is usually a good indicator of the freshness of the wood, which is important to many forest industries. Based on information from the harvester, models can be used to predict the rate of which timber dries under different weather, handling, and storing conditions. These data can be used as an aid to optimize planning of logging and secondary haulage. The aim is to ensure supplies of fresh timber to the mills, and to avoid costs caused by either overestimation or underestimation of the critical time available from harvesting to primary and secondary haulage.

- Improve prediction of your harvested raw material – Characterization of timber qualities in logged stems using PRI-analysis

Harvesters measure length and diameter of all harvested logs. With additional information of the forest stand timber qualities such as strength, durability, and surface properties can be predicted at the log level using Skogforsks demonstration tool PRI-analysis. If traceability is limited to sample logs and pile batches the sample logs can be analysed in detail while the piles can be characterised by the distributions of all individual log measurements and predictions. The log information is available without any delay and can be used for monitoring of impact on process efficiency and proportions of different products.

- Get track of harvester measurements, log processing quality and the value of measured and predicted log properties from harvesters

Combine the established “Quality certification system for harvesters” based on manual control measurements of logs from a few randomly selected sample stems per day and harvester and marking for traceability. The system combines existing routines for quality certification with double checks of harvester measurements and log scanners at sawmills. If the marked logs are traced and analyzed further on in the process the value of measurements and predictions from the forest can be determined. This information can be used for improvement of selection, bucking and logistics in the wood supply chain.

-Improve characterization of your potential wood resources – Prognoses of timber qualities in the wood procurement area

The spatial variations of timber qualities in a wood procurement area is important knowledge for a wood based industry. Timber qualities are characterized by properties such as length and diameter distributions of logs, but also strength, durability, and surface characteristics. Analyses can be based on forest inventories of individual sample trees like data from national forest inventories or other method providing sizes, ages and coordinates of individual trees. The information can be used to make priorities for different areas when planning timber supply. With accurate data from individual forest stands detailed prognosis can be powerful when planning for efficient fulfillment of customers orders, including selection of stands, bucking instructions and logistics.


>Next results avalaible very soon, under construction

In the future, you will be able to read about the Indisputable Key results on the following topics :