The third generation of intelligent data acquisition, analysis, management system is developed for the civil engineering testing field.This system is composed of sensor network, data acquisition terminal, data center, data analysis and management center and other parts, the integration of the latest ZigBee wireless network technology and low power management technology, stability the degree of automation and system has been greatly improved, the data acquisition terminal more compact.
The main control box and the expansion box can be wirelessly through the Zigbee agreement network, the longest communication distance of the point to point is up to 1 km, the network system can cover 100 square kilometers, compared with RS485 network, the wiring cost and high maintenance cost, the data acquisition terminal can set sensor access attributes by software, resistance type temperature sensor. The steel string type sensor, voltage sensor, current sensor, frequency type sensor can be arbitrary access, subgrade, especially suitable for outdoor unattended bridge, tunnel, dam, slope, hydrology, intelligent detection station construction and environmental protection industries.compared with the RS485 network, this instrument can eliminat the high cost of wiring and maintenance costs, the data acquisition terminal can be set by software sensor access properties, resistance type temperature sensor, steel string sensor, voltage sensor, current sensor, current type Sensors can be any access, especially for the field unattended roadbed, bridges, tunnels, dams, slopes, hydrology, environmental protection and other industries intelligent inspection station construction.
1.Data acquisition terminal operating temperature range: -45℃~60 ℃; with high degree of protection, protection level: IP65 (not including the connector part).
2.Online data acquisition terminal low power consumption (sleep state≦100uw, the working state ≦4W), can use batteries, Solar energy,AC power supply.
3.The data acquisition terminal has a variety of sensor types, which can be configured flexibly according to the measurement object and sensor access attributes.
4.The system is flexible and can be remotely connected by GPRS. The close distance can be saved by ZigBee, CAN bus and so on,maximize saving monitoring costs .
5.Data acquisition terminal added a number of their own state monitoring functions, including battery power, environmental temperature and humidity, anti-theft alarm monitoring, is conducive to system maintenance
Data acquisition terminal added a number of their own state detection function, including battery power, environmental temperature and humidity,anti-theft alarm monitoring, etc.,it is conducive to system maintenance.
6.System accuracy, stability, the number of points has been further improved, the data download method is more flexible, convenient, fast,and the data analysis and management functions is more professional.
7.The main collection terminal added a low power consumption LCD screen and keyboard shortcuts from the portable computer on-site installation and commissioning work independently, work optional manual or automatic, manual work mode is generally used as portable monitoring equipment.
1.Model name: QSY300A/B multi-function data acquisition instrument.
2.Acquisition channel: 20x14 channel, single cumulative greater than or equal to 280.
3.Input signal: the internal access model for the voltage type, current type, resistance type, vibration string type, frequency tape.Each channel can be freely switched by software.
4.Minimum resolution: voltage: 0~ ±10V DC, accuracy: 0±0.1%FS, frequency: 250~10000Hz, accuracy:0 ±0.1%FS, resistance: 50~5000, current: 0~20mADC.
5.Data port: with a RS485 port, (300B with a TCP/IP interface) or CAN bus interface, 1 USB2.0 interface, a GPRS interface.
6.Data storage space: to ensure that all channels open, at least two times a day to collect, to ensure that a year of injury data storage, never lost if power loss.
7.Data upload mode: the main acquisition instrument and data center: TCP/IP, GPRS wireless data upload, expand the collection instrument and data center: CAN bus transmission.
8.Data processing: the collected data can be used for data operation and logic operation, and can carry on the system analysis, eliminate the noise and bad point.
9.Mode of operation: skills to achieve a separate operation, but also to achieve real-time acquisition, remote operation, online collection.
10.Power supply: 12VDC, no more than 13.8VDC.
11.Power consumption: standby power consumption of 80 μ W, power consumption light rain of 230 μ w.
12.Operation keyboard: 4x3 table key.
13.Electrical interface: contact resistance due to 0.2Ω, no rust, mildew.
15.Data receiving software: instrument comes with more than 8 support, data acquisition and data upload.
Current quantity：0~20mA DC,accuracy：±0.1%FS±10μA
17.Power supply to the sensor:Voltage output+5VDC/2A,Can support 16 low-power sensor work.
18.Power Specifications：Voltage output+12VDC/1A,Can support 16 low-power sensor work.
19.Timers:Support 24 hours the whole point of time to boot,the clock error is less than 1 minute/month.
20.Number of network instruments:256units.
21.Display screen:LCD wide range of temperature liquid crystal display.
22.Case:standard case ,with handle.