Building Management, eHouse RF

Wireless Home Automation

eHouse building management & amp; Smart House Intelligent Building. For added functionality, the scope of our wired systems, we offer a radio frequency (RF) wireless version, working in a free, safe and less burdened radio bands 863MHz, 902MHz, 915MHz.

Despite the obvious advantages of wired systems:

  • safety
  • stability
  • professional installation
  • no possibility of interference, sabotage, hacking from the outside
  • independence from the ambient radio noise, electromagnetic, electrostatic, radio network utilization
  • no aging elements
  • no effect of radio wave propagation changes depending on various factors, physical or weathering

In some cases, the use of cable systems is pointless or too expensive:

  • The non-invasive and easy to install in old electrical systems
  • big dispersion of installation, long distance
  • control external devices (plot, etc)
  • lack of opportunity or too high cost of laying cables (mounted in the ground)
  • exposure to extreme conditions (humidity, temperature, electrical puncture etc.)

In these cases, the use of radio systems is justified both by the budget as well as technically.

To be able to work eHouse system under all conditions we offer wireless version of radio system that far exceeds the functionality, stability and operating parameters of other wireless building automation systems, operating in the 2.4GHz band. Our drivers use Sub-GHz band (868 MHz, 902 MHz or 915MHz depending of RF module).

2.4GHz radio systems

Most radio systems for building automation use 2.4GHz frequency band (in the ZigBee network). There are a number of problems associated with the radio bandwidth compared to Sub-GHz bandwidth

  • Much more utilized 2.4GHz band due to the use by WiFi, Bluetooth, radio remote controls, building automation, ZigBee, most radio and remote control, wireless internet with much greater transmission power for the same range.
  • The risk of total or temporary loss of communications after adding new 2.4GHz devices within system range
  • Very easy to sabotage the system by blocking building automation controllers with powerful transmitters WiFi band (channels)
  • Increased risk of collision, the CPU load and a significant reduction in the stability of the above reason
  • A significant increase in battery consumption by more traffic on the network and “wake up” to devices
  • almost 3 times less coverage at the same power transmitter in the open field
  • a minimum of 3-6 times higher wave attenuation in the walls and other obstacles
  • increasing the power consumption of radio wireless devices coused by increase transmission power
  • The risk of a deterioration and loss of coverage due to the aging of RF components
  • repeatedly worse propagation of radio waves by obstacles, metal shields, walls, ceilings, chimneys (much higher damping)
  • virtually no work opportunities of 2.4G systems in large blocks where the number of radio WiFi, Bluetooth, ZigBee can be very large within the installation range

The benefits and superiority of using “eHouse RF” in wireless systems.

  • The “eHouse RF” uses “eHouse CAN” controllers with radio module plugged in, so that new installations can work on CAN interface and only in exceptional circumstances use the radio. For example, long-distance, outdoor, expanding the system after finishing home
  • The possibility of joint hybrid operation ({wired versions LAN, RS-485, CAN, PRO} and wireless). Controllers operate with the same algorithms as eHouse CAN. Identical and transparent from user level.
  • use much less utilized frequency bands (sub-GHz) 868MHz, 902MHz or 915MHz
  • Ability to choose the band by changing the external RF module (eg in the case of detecting a busy band) in high saturation installation within baseband
  • 3-6 fold increase in coverage at the same output power
  • 4-6 fold improvement radio wave propagation through obstacles, walls, ceilings, chimneys
  • less dependence on weather conditions (rain, fog) long distances between devices
  • the ability to choose the working channel and automatic switching in the event of major disruption
  • Use MESH PRO – MiWi PRO protocol based on license from Microchip and original Microchip RF modules
  • the ability to work to 8,000 controllers in one installation and 64 coordinators
  • In the absence of direct range of the base station controller to other devices transmit the information further
  • Input drivers with limited functionality – RFD (switches & sensors) can be battery-operated and installed outside
  • RFD drivers during sleep have turned off the radio does not receive any signals for minimal power consumption. The battery is not discharged for no reason. Send cyclically their statuses and measurement when you press button.
  • range in the open field a few hundred meters (tested empirically by strengthening + 1dBm over 300m at the parallel of modules without housing), permeability through reinforced ceilings up to about 50cm-70cm. depends on the arrangement of transmitters and material (perpendicular to the obstacle)
  • the possibility of increasing the range, the transmitter power up to + 10dBm, the inclusion of additional RF amplifier (LNA) with extreme operating conditions of the system (very large distances, thick walls, a noisy, etc.)
  • Security installation 16 byte key (128b)
  • ability to work up to 256 installations of “eHouse RF” in the common range
  • ignoring and avoiding conflicts with other radio systems and installations
  • The drivers can be installed directly into the wall socket and low-voltage power supply (6-12V)
  • relays 230V/5A (max 4 pieces) and dimmers 12V/2A (max 4) are installed on a separate module for maximum separation and distance between electronics and external high voltage

Shop: Smart Home RF Wireless