The Internet of things application

Range of application
Widely used in petroleum, chemical industry, building materials and other industrial automation measurement and control field. Through the digital measurement and control, information control, intelligent schedule, network management, realize the measurement and control equipment unattended and remote measurement and control.

System advantage
1, modular design, redundancy: digital sensor data acquisition terminal - - intelligent measurement and control terminals RTU -- - -- - > APPSERVER PC online, formed the cascading network, facilitate decentralized control, centralized management.

2, a variety of industrial field BUS communication: 1 - Wire BUS RS485 and CAN BUS, CAN choose;

3, local wireless data communication: SMSF local networking wireless data communications networks, to achieve industrial production data acquisition and control; Simplify installation, reduce signal cable non-normal damage failure, damage resistance of long period running, and improve overall system reliability.

4, remote wireless data communication: RTU has a variety of communication interface, compatible with GPRS/CDMA/td-scdma/Internet and other communication systems.

System composition
1, digital sensors: standardized digital signal cable or wireless sensors, such as load, displacement, velocity, acceleration, Angle, temperature, weight, pressure, power and so on all kinds of sensor or transducer.

RTU: 2, standardized interface with SCADA, DCS and other network systems, the Shared data source, and industrial production scheduling management system of Internet of things applications.

3, APPSERVER software: the RTU data; Parameters of the upper and lower alarm setting and transfinite alarm; Digital temperature channel, analog channel Settings; Remote RTU parameter Settings, RTU, an update operation is simple, maintenance;

Technical indicators
1, RS485 communication: EIA - RS485 - A standard, photoelectric isolation, isolation voltage 1000 VDC / 1 minute; Support the Modbus RTU or other third party custom communication protocol; Can be connected with the other third party equipment.

2, Ethernet communication: 10 base-t PHY, compatible with 100/1000 base-t network.

3, RS232 communication: 3 wire or wire, compatible with GPRS/CDMA/DTU and other communications systems td-scdma communications.

4, the CAN - bus communication: the CAN Specification Version 2.0 standard.

5, SMSF local wireless data communication network, effective communication distance is 300 m or more; Carrier frequency: 433 MHZ, belong to the ISM frequency, need not apply for frequency point; GFSK narrowband modulation, at the same time, adopt high efficiency forward error correction channel decoding technology, low-power cases data communication reliability; Which can be used as a wireless digital sensor interface, also can be used as the data communication link between the RTU and interface. Can be customized according to the demand for the other standard such as ZigBee local wireless data communication network interface.