PRECIA-MOLEN (France) - During 2012 Smédar, the "Syndicat Mixte d’Élimination des Déchets de l’Arrondissement de Rouen" (Rouen Public-Private Waste Disposal Syndicate), finalised the deployment of a global interactive weighing solution on all its sites. Intended to optimise the handling of lorries and the management of data from weighing, this has allowed an increase in efficiency and performance through the reorganisation that followed the installation of the new system.
After a call for tenders issued in 2007, Smédar selected PRECIA MOLEN, the specialist in industrial and commercial weighing, for the quality of its proposal that provided, in addition to tailor-made support from a dedicated team, a set of innovative products with high value-added software from the TRADIM company, going well beyond traditional weighing.
Weighing lorries, a strategic activity in waste management:
At the heart of the arrangements, weighing lorries represents a decisive step, allowing the local authority to invoice customers for the treatment of their waste. A local authority body created in 1999, Smédar recycles waste for 164 communes, with 610 000 inhabitants. Every year over 450,000 tonnes of waste are received in the different Syndicate installations, which represents over 160,000 recorded weighings. The new solution will both ensure fast, accurate weighing operations, and also provide centralised management of the data from the six different sites.
In total, 3 PRECIA MOLEN "ROC" weighbridges and 2 weighbridges for weighing care activity waste have been installed at the entrance and/or exit of the weighing points. In parallel, 8 other existing bridges have been equipped with the interactive weighing equipment. All are connected to an access control terminal, with IP communication, that manages the data using the Quantum software developed by the TRADIM company.
All the Smédar sites have benefited from the deployment of new equipment, including the VESTA eco-centre dedicated to protection of the environment, in Grand-Quevilly, which concentrates the major part of the installations. Smédar also has two green waste composting installations and a wood sorting installation. Five transfer docks (waste combining centres for communes a long way from the treatment sites) have also been equipped or benefit from the bridges at other installations, depending on their geographical proximity.
The collection lorry driver, the key player in the new system:
The principle is simple and quick. The collection vehicle drivers must identify themselves using a badge that they present to the weighing terminal to access the site. This automatically displays a selection of different types of wastes, the driver therefore enters the nature of his load using the touch screen and then receives a ticket, produced by the terminal, that indicates the weight. He can call the "weighing" service at any time using the terminal interphone.
Using this interactive system the drivers gain time and avoid any input errors. A classic weighing is thus done in less than 7 seconds.
Finally, the drivers benefit from all the information needed for the correct execution of their visit, via a giant electronic panel.
An "intelligent" terminal permitting end-to-end visibility and control:
Hospital waste is in trays equipped with an RFID. They are identified and weighed at entrance and exit, using the "small" weighbridges connected to a weighing terminal with Ethernet (IP) communication. The site manager allocates the trays on departure from the site, entering the flow information on a PDA. He thus has real time logistic monitoring visibility for the available trays.
The weighing terminals are also designed to allow remote maintenance operations. From their offices, the Smédar technical staff can take control of any terminal for remote intervention.
PRECIA MOLEN has connected the radioactivity measurement units to the weighing terminals. When a driver presents his badge, the incoming weight is associated with the measured radioactivity value. An alarm is triggered if the threshold is exceeded. The vehicle is then in placed in an isolation zone for a repeat measurement. If the repeat measurement is positive, the software allows the production of a slip including all the monitoring information.
Reorganised "weighing" activity:
Through the PRECIA MOLEN solutions, all Smédar sites are now interconnected, which allows optimised weighing data processing times centralised on the VESTA eco-centre servers. Currently customers are invoiced in only 15 days, whereas two months were previously necessary. Real time processing could even be done, if the authority had not wanted to retain data verification by the Management Control department.
Finally, the new system has allowed compete reorganisation of the activity "weighing". As the terminal allows the barriers or gate to be opened by the driver's badge the presence of a receptionist is no longer necessary. Freed from time consuming input operations staff gain comfort and can undertake other activities, such as loading and unloading waste, cleaning sites...
This large-scale project required wide expertise, beyond traditional weighing frontiers, notably in civil engineering, network cabling, communication and software. Supported by partners expert in their field, such as TRADIM, PRECIA MOLEN mastered all the technical and strategic techniques for the installation.
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