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client
Beijing No. 161 Middle School
Market demand
Beijing No. 161 Middle School is located next to Tiananmen Square. There is an ancient building complex of Shengping Office Theatre on the campus, which is a key cultural relics protection unit in Beijing. There is an automatic weather station on the campus. Since the system requires the main computer room on the campus and the Beijing Meteorological Bureau to be used as two central ends to collect meteorological data, both ends require a lot of communication costs if GPRS is used. The meteorological data collection system developed by ZigBee technology adopts the GPRS+ZigBee technology integration scheme, which saves the cost of data collection at the campus center, and has been recognized by customers.
solution
As shown in the figure, the data collected by the automatic weather station is sent to the two central terminals at the same time, and the remote central terminal (weather bureau) uses Helicomm’s GPRS data transmission terminal MA8-9i as the transmission device, and collects meteorological data through GPRS and Internet networks; The near-end central end (school computer room) uses the IP-Link2220H data transmission terminal independently developed by Helicomm based on ZigBee technology as the transmission device, and collects meteorological data through its self-organized wireless mesh network. Collecting 1K data once every minute, through the central terminal software, you can easily and quickly check related parameters such as wind speed, temperature, rainfall, etc., which saves the cost of data collection and communication within the campus.
Among them, IP-Link2220H data transmission terminal has passed FCC, CE and other international safety certification; with industrial-grade RS232/485 interface; using DSSS spread spectrum technology, 16 channels are available for you to choose; built-in CSMA/CA anti-collision mechanism; low Cost, low power consumption, and no communication fees.
Why choose Helicomm
1. Advanced wireless Mesh network, the network routing can reach at least 20 hops, and there is no communication fee.
2. Adopt ZigBee technology, low cost, low power consumption, and can be powered by solar energy.
3. The product has passed FCC, CE and other international safety certifications.
4. With years of R&D and industry experience, independent core technology, and customization capabilities based on standard ZigBee.
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