AXYS offers many telemetry options for monitoring and collecting remote environmental data. Data can be sent in virtual real time and clients are able to specify their preferred telemetry option.
Inmarsat: IsatData Pro & IsatM2M
Inmarsat is a high orbit geostationary satellite telemetry system operating in a ±60° latitude. The Inmarsat system consists of four communications satellites backed up by an additional five satellites that can be brought into use in the event of technical difficulties or high traffic. There are a number of different bandwidth telemetry services available through Inmarsat.
IsatData Pro offers a higher bandwidth than the Isat M2M service, with 10Kb upload and 6Kb download. Isat M2M is used for low bandwidth messaging and platform position monitoring. Both IsatData Pro and Isat M2M are capable of providing alerts along with regular data transmissions, and can be either pre-programmed or remotely triggered to send automatic messages. This transmitted data is archived on a database and available for secure client access.
AXYS is a service provider for both IsatData Pro and Isat M2M.
Iridium Satellite uses a dedicated constellation of 66 low-earth orbiting (LEO) operational satellites and 14 in-orbit spares positioned at a height of approximately 780km. The satellites orbit from pole to pole with an orbit of roughly 100 minutes. Short burst data packets are transmitted to the nearest satellite and received by a gateway on earth, either directly or via another satellite in the network, and delivered to the DMS software in email format. Iridium’s two-way service avoids multiple redundant transmissions by acknowledging that data has been sent. This system is best suited to situations where large amounts of data need to be transmitted, as airtime is charged by the minute.
AXYS is a service provider for Iridium Satellite.
The Argos (Advanced Research and Global Observation Satellite) system is comprised of low orbit, non-geostationary satellites. Argos satellite telemetry is a limited data communications solution for use in remote locations where VHF or cellular telemetry are intermittent or unfeasible. This telemetry option is controlled through NOAA and there are some restrictions to applications and users; users need to apply for the service.
GOES (Geostationary Operational Environmental Satellite) is a geostationary satellite system that provides 24-hour coverage and is generally used by governments and institutions. Interested persons must apply for its use, as there is limited access to this system. There is a cost associated with the purchase of the transmitters but the data collection is free, provided that the data is distributed on the Global Telecommunications System (GTS). GOES communications is one-way only.
The ORBCOMM (Low-Earth Orbit Satellite) system uses a network of low-Earth, near-polar orbital satellites for data and messaging communications services. ORBCOMM provides tracking, monitoring, and messaging capabilities to and from anywhere in the world, and there are no restrictions to applications or users. The system operates by transmitting the data packet to the ORBCOMM satellite, which then relays the message through one of four U.S. Gateway Earth Stations (GES). The data is then sent to the Network Control Center (NCC) via satellite link or dedicated terrestrial line. The NCC routes the message to the final addressee via e-mail, dedicated telephone line, or facsimile. Messages originating outside the U.S. are routed through international Gateway Control Centers (GCC) in the same manner.
HSPA Cellular (compatible with GPRS)
Cellular telemetry offers high bandwidth, two way communications for deployments within coverage areas. AXYS clients are required to subscribe to a data plan with a local service provider. The two way telemetry is a preferred choice for near-shore deployments..
Radio telemetry is one of the most common methods of transmitting data from remote inaccessible installations, (water or land). Radio telemetry requires a clear line-of-sight between the monitoring system and the base station for distances up to 30 km. While antenna positioning, gain, tuning, and ambient noise can adversely affect range, our systems can be configured to send multiple transmissions to ensure a consistently high data throughput.
AXYS products include an internal data logging option. This can be used as either a backup system in the event of marginal telemetry conditions or as a stand-alone feature. Data sampled by the system is logged onto a large capacity Compact Flash (CF) Card.
s Ports & Harbours
Accurate environmental data is a crucial part of port and harbour planning and operations. Access to timely and meaningful information can assist decision-makers faced with planning, operations, security, and safety.
An ideal environmental monitoring solution for a Vessel Traffic Management System (VTMS) includes moored buoys, fixed platforms and pier-based installations. Typical sensor configurations provide wind speed, wind direction, waves, current speed, current direction, and water level (tide), all managed by one data management system. AIS messages 8 & 21 are broadcast and met ocean data is transmitted in real time to port operation centers, ship operators, bridge crew, and pilots.
AXYS offers custom, self-contained and fully automated weather and water level systems that can be deployed in key locations to facilitate vessel traffic management operations.
s Offshore Wind Resource Assessment
The need for accurate offshore wind data is growing rapidly worldwide. Wind farm developers and financers understand that accurate wind data is critical to the overall success of the site, not only in assessing the potential power of the location, but also in the positioning of the wind turbines.
The traditional approach for gathering wind data is to construct a meteorological mast equipped with anemometers. However, in the offshore environment this practice is both difficult and expensive to implement. Floating LiDAR technology is an innovative solution to these problems. The AXYS FLiDAR WindSentinel™ buoys use a LiDAR to measure wind at turbine hub-height to provide accurate and reliable data on wind speed, wind direction, and turbulence. Additional sensors can be integrated onto the buoy to achieve a full environmental assessment of the location.
s Oil & Gas Environmental Monitoring
Environmental data plays an important role in drill rig and production platforms’ operations and planning. To support exploration and general operations, oil and gas companies benefit from the ability to monitor met-ocean parameters, including directional waves, current profiles and wind, as well as water quality, such as salinity and dissolved oxygen.
AXYS met-ocean buoys and systems provide oil and gas companies with real-time environmental information, which allows them to make more accurate and timely decisions affecting platform operations, staff safety, and the local environment. Real-time weather data allows personnel to constantly be aware of potential hazards, such as increases in current speeds, wind speeds or wave heights.
s Offshore Renewable Energy
Environmental monitoring is a critical factor in the success of an energy capturing device, whether it’s a wind turbine, wave energy converter, or tidal energy converter. Accurate data aids developers in assessing the potential of a location, the positioning of the energy capturing devices, as well as assisting in ongoing operations.
Developers typically work through an initial assessment phase where environmental measurement data is required to pinpoint a location. This data can be acquired from historical sources such as wave watch models, or using in-situ instruments such as wind, wave and current buoys. Buoys provide reliable, highly-accurate, real-time data over a long period of time that allows developers to evaluate the location and make informed decisions about whether to use the site being assessed. The weather data analyzed by oceanographic consultants can be useful in determining if the energy capturing device will stay anchored in place in order to provide long-term energy.
Once the assessment phase is complete and the site has been confirmed, the energy farm is then developed. Given the cost of working in such a harsh environment, accurate environmental weather data is essential to control expenses and protect assets. Knowing the weather in advance from a data buoy transmitting environmental conditions by satellite can save developers time and money during the manufacturing phase.
Once the energy farm is built and in a production stage, it still requires constant monitoring to ensure that the maximum power output is maintained. Monitoring equipment can help developers understand if they are getting the estimated amount of power from their capture device that they were initially expecting.
Environmental monitoring platforms come in a large variety to serve different needs. They also host a wide range of sensors and telemetry devices. Sensors can gather data on winds, waves, currents, atmospheric pressure, air and water temperature, relative humidity and many other parameters.
Types of buoys include, wave and current buoys, meteorological buoys, and wind buoys. As the renewable energy industry begins to develop more offshore resources, it is expected that a significant rise in investment in the ocean monitoring field will occur, with developers relying on these tools to help them improve yields and reduce costs. Environmental monitoring will play a key role in making offshore renewable energy a success in the years to come.