I'm interested in RasPi CAN support for ISOBUS / ISO 11783 data.
Provide an open source hardware & software solution to produce and wirelessly transmit near-real-time ISOBUS data.
Currently, growers do not own and have limited access to the precision agriculture data produced by their equipment. The equipment manufacturers legally and technically limit or prevent data access, integration and utilization. The RasPi ISOBUS solution enables growers to own, access and integrate the heterogeneous data produced by the growers' equipment and their suppliers' equipment while operating on the growers' farms.
The requirements echo those previously stated in this thread for a CAN Interface.
CAN bus interface
GPS (including RTC support when no Sat signal is present)
Opto isolated IO's (galvanic isolation on CANbus)
12v-5v DC-DC Converter
Input voltage range from 9-30, galvanically isolated added on the board
Electrical isolation is an important aspect that would be especially critical.
This implementation requires GSM/CDMA data transmission. This capability could be achieved by a combo chip such as the Telit GE864-GPS or by combining the GPS chip proposed with a USB GSM/CDMA solution.
Due to the operating environment, a rugged case will be required.
This is a read-only application, meaning no equipment or system control messages are transmitted to the CAN bus.
I can provide cost support for board level development.
While there are an increasing number of name-brand, commercial ISOBUS ECUs, task controllers, Virtual Terminals, etc., I have been unable to locate any open-source hardware, software and data systems.
The terms of service of all the commercial systems I have seen to date all stipulate that the manufacturer essentially "owns" the data. In addition, the proprietary systems all isolate the detail data behind closed web portals. Both of these factors prevent growers and their vendors from integrating, aggregating or analyzing the data the grower's equipment is producing.
Essentially all agricultural operations are heterogeneous from the data source standpoint, including different brands of systems that generate precision agriculture data in the field. Growers have their own equipment, which may use Brand X equipment, while their input application supplier may use Brand Y equipment. Currently each of those brands locks up the data from their equipment in closed and proprietary data silos. For instance, that can mean the grower's planting data is separated from the herbicide as-applied variable rate application data from the supplier the grower paid for the application.
The resulting non-integrated, isolated data sets prevent the grower's agronomics, inputs (seed, chemicals, etc.) and financial suppliers and consultants from having visibility into an integrated view of a grower's operations. In essence, no one, including and especially the grower, has an overall, integrated view of what has been done to which crop in which field.
There is an agriculture industry program, AgGateway, to provide data integration that is making slow progress, but it will be years, probably many years, before it yields widely available and implemented data integration standards.
I am interested in developing RasPi CAN capabilities to enable the near-real-time transmission of ISOBUS data from agriculture equipment to a data integration, storage and retrieval system. This data would be wholly owned and controlled by the grower.
ISOBUS is the brand (marketing) name for the ISO 11783 CAN standard for agriculture, forrestry, etc.
The key benefit of ISOBUS is that it enables any brand, model or model year of ISOBUS equipped tractor, harvester, sprayer or implement to share real-time data and status with any other similarly equipped equipment.
ISOBUS is used in precision agriculture and other applications.
In precision agriculture it enables the precise control and guidance of agricultural equipment, such as repeatable sub-inch accuracy in tractor/harvester/sprayer guidance. Precision agriculture, via ISOBUS communication between tractor and implement, also enables extremely precise variable rate application of agriculture inputs such as seed, fertilizer, pesticides and herbicides. This variable rate precision enables growers to use less chemicals by eliminating overlap, plant specific types of seed in precisely located types of soil to improve yields and to lower overall costs of production.
The technical development of the ISOBUS standard originated in Germany in 1991. Commercialization began in 2001. The standard is only relatively recently finding adoption in North America.
There is currently a lack of data storage structure standardization (beyond the standard's XML delivery format) and data integration as commercially realized in the NA market.
There are some academic data projects underway, such as the Komobar project from Hochschule Osnabrück http://www.komobar.de/
More information on the standard here:
(English entry, very short)
(German entry, extensive)