Tag: wireless sensors
Apartment buildings, especially older buildings with boiler systems, can have unique challenges for balancing competing goals of occupant comfort and lowering operating costs. Instrumenting a building with HVAC sensors, potentially each apartment unit, can provide a comprehensive building footprint from which to better optimize energy consumption and lower costs. The apartment sensor can be combined with outside measurements into a Building Automation System, or just a small controller, which can make more intelligent and predictive decisions for boiler control.
Implementing a wired sensor solution is prohibitively expensive for existing buildings. In addition, the disruption to occupant living space can be a coordination and construction nightmare. Wireless sensors, on the other hand, provide a more cost effective and occupant-friendly implementation approach. They can be installed in seconds to a few minutes and there is no construction mess. The primary challenge with wireless sensors has been battery life, with most devices operating for only 3-5 years before the batteries need to be replaced. Scheduling time and expense for battery replacement can not only be expensive, but also a nuisance to occupants.
Powercast’s wireless sensors can operate for over 25 years on a single battery (test report) and effectively eliminate battery replacement. This means there is only a quick, one-time visit to the apartment unit to install a sensor, or it can be easily added to a routine maintenance call until all units are equipped.
As a network-based solution, data from up to 100 devices can be received by a single wireless gateway (WSG-101/102) and made available to a building automation system or system controller. Wireless range for a 900MHz system is up to 300 feet indoors, and range can be extended to unlimited distance using wireless repeaters.
Data center infrastructure growth is being driven by increased network services, expanding user base, and application such as cloud computing. These services require more computing power, which drives increased server density and the corresponding increase in heat loads, ultimately resulting in significantly increased energy costs. With data center energy consumption roughly split between powering servers and providing cooling for the heat they produce, small changes in environment temperature can result in a significant reduction in energy consumption.
Environmental monitoring can provide data to produce a real-time, visual map of a data center. This enables operators to detect potential and existing problems to ensure uninterrupted operations and maintain service guarantees. The data also enables facility operators to use energy management strategies to lower costs such as raising the temperature a few degrees in some or all areas of the data center.
Multiple sensors options are available for monitoring temperature, humidity, dew point and more. Up to 8 sensor points can be configured for a device.
Powercast Products Feature:
High Reliability: A Powercast network utilizes a combined star/mesh architecture and a wireless protocol which allows multiple routes for data to reach its destination gateway. The 2.4GHz system utilizes Direct-Sequence Spread Spectrum (DSSS) modulation that avoids RF interference, and it uses channels that will not be interfered with by WiFi. The 900MHz system uses frequency agility for robust performance.
Low Installation Cost: Powercast’s environmental monitoring system is Wireless, so there are no wires, conduit, wiring trays, or other construction related activities. The sensors can be installed fast with screws, cable ties, or doubled-sided tape, and require no maintenance.
Easy Deployment: A comprehensive wireless temperature, humidity, dew point, and pressure monitoring network can be installed rapidly with no disruption to data center operations.
Open Source Data: No proprietary application software or monthly monitoring fees are required. Capture the data in your existing monitoring application with standard protocols including SNMP, XML, BACnet, Modbus, LonWorks, Metasys N2, and more.
Scalability: Powercast’s system can be used to monitor a few servers or scale to a major data center. Each gateway supports up to 100 devices and 800 points. Additional gateways can be used for even larger deployments.
Flexibility:Since the sensors are wireless, they can be easily relocated to monitor a specific zone, aisle, or rack.
Proven: Powercast’s wireless technology, based on industry standard hardware, is field-proven in numerous products and applications.
Powercast’s WSG-101 (using Modbus TCP) has been integrated into the Opendium cloud-based remote monitoring platform from Building Clouds. Using live data from the Powercast facility, the Building Clouds Opendium monitoring service pulls the data from the Powercast WSG-101 BAS gateway into the cloud, making it available for remote monitoring, alerting, and data logging.
Building Clouds offers its Opendiem Software Suite of open products which monitor and control building systems and industrial processes from a simple and easy to use web-based graphical user interface. Opendiem does not require any proprietary connection to a controls network and can be hosted on a virtual, cloud-based hardware platform.
Powercast’s WSG-101 BAS gateway can connect to the cloud using various Ethernet-based interfaces including BACnet/IP, Modbus TCP, XML, and SNMP.