Device and method for managing cardon dioxide emissions for products
A management device is configured to manage CO 2 emission amounts emitted from production of products on a production line. The management device includes a storage device configured to store a unit weight of a first product and a unit weight of a second product produced on the production line, and a control device that is configured to proportionally divide an electric power consumption amount consumed on the production line over a predetermined period, based on a weight ratio of a total weight of the first product and a total weight of the second product produced on the production line over the predetermined period, and calculate the CO 2 emission amount for each product.
1 . A system comprising:
a production line configured to manufacture at least a first product and a second product;
an electric power meter configured to measure an electric power consumption amount used on the production line over a predetermined period;
a management device that is configured to manage a CO 2 emission amount emitted by production of the first product and the second product on the production line, the management device comprising:
a storage device that is configured to store a unit weight of the first product and a unit weight of the second product produced on the production line; and
a control device that is configured to proportionally divide the electric power consumption amount consumed on the production line over the predetermined period, based on a weight ratio of a total weight of the first product and a total weight of the second product produced on the production line over the predetermined period, and calculate the CO 2 emission amount for each product,
wherein:
the management device is configured to function as a node in a distributed ledger network with nodes of other management devices,
the management device is configured to transmit the CO2 emission amount for each product to the other management devices, via the distributed ledger network, and
the other management devices are configured to be notified of the CO2 emission amount for each product by the other management devices approving transaction data.
2 . The system according to claim 1 , wherein:
the CO 2 emission amount for each product includes a first CO 2 emission amount that is a sum of the CO 2 emission amount of the first product produced on the production line over the predetermined period, and a second CO 2 emission amount that is a sum of the CO 2 emission amount of the second product produced on the production line over the predetermined period; and
the control device is configured to
calculate the CO 2 emission amount per unit product of the first product by dividing the first CO 2 emission amount by a production quantity of the first product over the predetermined period, and
calculate the CO 2 emission amount per unit product of the second product by dividing the second CO 2 emission amount by a production quantity of the second product over the predetermined period.
3 . The system according to claim 1 , wherein:
the storage device is configured to store conversion information for converting the electric power consumption amount into the CO 2 emission amount; and
the control device is configured to convert the electric power consumption amount consumed on the production line over the predetermined period into the CO 2 emission amount, using the conversion information.
4 . A method of production and managing a CO 2 emission amount emitted by production of products on a production line, the method comprising:
controlling the production line to manufacture at least a first product and a second product;
controlling an electric power meter to measure an electric power consumption amount used on the production line over a predetermined period; and
controlling a management device to execute:
reading a unit weight of the first product and a unit weight of the second product produced on the production line; and
proportionally dividing the electric power consumption amount consumed on the production line over the predetermined period, based on a weight ratio of a total weight of the first product and a total weight of the second product produced on the production line over the predetermined period, and calculating the CO 2 emission amount for each product,
wherein:
the management device functions as a node in a distributed ledger network with nodes of other management devices,
the management device transmits the CO2 emission amount for each product to the other management devices, via the distributed ledger network, and
the other management devices are notified of the CO2 emission amount for each product by the other management devices approving transaction data.