Caimore GPRS/3G/4G DTU will gather mulitple type data from the wind farm’s devcie to implement extract the monitoring data from power PLC, and update the PLC’s parameter; the meteorological data from anemometer tower will be transfer to monitoring center via RS232/RS485/IO port, monitroing center also can send the control command by serial port to DTU in order to control the field device.

1. Xiamen Caimore Communication Technology Co.,Ltd
2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)
Contact person: Cynthia Wang E-mail: sales09@caimore.com
Skype: caimoremodem whatsapp: +86-13720875034
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Tel:+86 592 5901215 Web: www.en.caimore.com1
GPRS/3G/4G GSM modem RS232/RS485 wireless DTU applied in
wind farms remote maintenance system
Key words: GPRS 3G 4G GSM MODEM; wireless DTU; wireless DTU for
wind farms; wind farms; RS232 RS485 GSM modem
Under energy crisis and environmental pollution dual background, wind power as a
clean, new renewable energy, has become a key support areas and development of
governments. Due to complicated Wind turbine structure and variety operating
parameters, it is necessary to establish a comprehensive monitoring system platform, to
do real‐time monitoring wind farm operating environment and analysis for the wind
turbines operating state and power quality parameters.
Caimore GPR/3G/4G GSM modem RS232 RS485 wireless DTU can effectively reduce
the maintenance cost and improve the work efficiency. The system of wind farms
remote manitencance is consist of three parts: field devices, remote monitoring
terminal and monitoring center.
1. Field device
Caimore GPRS/3G/4G DTU will gather mulitple type data from the wind farm’s devcie
to implement extract the monitoring data from power PLC, and update the PLC’s
parameter; the meteorological data from anemometer tower will be transfer to
monitoring center via RS232/RS485/IO port, monitroing center also can send the
control command by serial port to DTU in order to control the field device.
2. Monitoring center
It is consisting of application server, engineering station, database server
maintenance terminal, alarm monitoring terminal and so on.

2. Xiamen Caimore Communication Technology Co.,Ltd
2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)
Contact person: Cynthia Wang E-mail: sales09@caimore.com
Skype: caimoremodem whatsapp: +86-13720875034
-----------------------------------------------------------------------------------------------------------
Tel:+86 592 5901215 Web: www.en.caimore.com2
All the monitoring data from wind farm are transfered by Caimore GPRS/3G/4G
DTU to the server database and storted in; meanwhilethe server database will provide
the monitoring center or remote end user with data analysis and other service by
wireless network, and monitor the central device and software management mode.
By monitoring the maintenance terminal for remote wind farm equipment
maintenance and real‐time monitoring, to achieve 24‐hour real‐time alarm monitoring
and alarm signal broadcast.
3.Remote monitoring terminal
There are remote monitoring terminal, mobile alarm terminal and remote fault
diagnosis terminal.
The monitoring center will bulid up a connection with field deivce via Caimore
GPRS/3G/4G DTU to be completed remote analysis and monitoring the wand farm.
Once there is a fault, the system will send the SMS message for the maintenance
personal, in order to handling and maintenance in time. What’s more, Caimore
GPRS/3G/4G DTU support multiple center connection, it can send the data to the
monitoring center or mobile terminal to realize multiple center synchronous monitoring.
This system is no wiring based on the wireless network (GPRS/3G/4G), will greatly
improve the efficiency & the security of data transmission, have no geographic
restrictions, low cost on maintaenance and promotion.
4. Why Caimore
Caimore Communication devotes herself to IOT and the industrial automation
fields , provides wireless products and video surveillance solution for remote site. Due
toahering to the concept of " Quality First, Customer Utmost", Caimore has established
9 branchs, 66 agents in the in the demostic till now. Meanwile, Caimore wireless
products have been exported to more than 16 country on aboard. Such as India, Indone
sia, Thailand, Kuwait, Norway, Ghana, Russia, Chile, USA etc.
Now Caimore's porducts has won won a high respect of most of customer at ho
me and aboard, due to its stable high quality and effeient service.