Sell Loop Detection Card

Board features
1. High stability oscillatory technology ---- Frequency fluctuation <2?0-5 Hz
2. Fast and high precision frequency detection ----single channel 0.33ms/four channel1.330ms，measurement error<2?0-5Hz 
3. High-speed channel sequence scanning technology ----eliminate crosstalk interference between channel coil.
4. Each channel four kinds of oscillation frequency selection switch----eliminate crosstalk interference between multiple cards coil
5. Dual sensitivity vehicle detection patent technology ----255 sensitivity levels setting
6. Fundamental frequency real-time updating technology ---- can eliminate temperature, pressure and other environmental factors led to deformation of the coils resulting frequency drift.
7. Vehicle presence time setting----can be set freely within 1-65535 seconds.
8. Four kinds of digital output----passing type, existence type, extending type, delaying type, behind three presence time can be set freely within 1-65535 seconds.
Curve matching vehicle speed detection patent technology.
9. CAN Bus cascading patent technology---the same type of multi-block boards can be cascaded to use.
10. Bidirectional logic detection function ----vehicle moving forward and converse detection.
11. Bidirectional data detection function----detect vehicle length, speed traffic flow of moving forward and converse simultaneously.
12. Detection results dual-output channel ----four-way isolation DO and a serial real-time output state and data.
13. Rich real-time uploading function ----real-time uploading vehicle? entry, exit coil state, vehicle? moving direction, maximum frequency change value of each vehicle, existence time, instantaneous speed, length, etc.
14. Interface expansion ----can expand a serial, a IIC interface; Can be produced according to customer? demand.
15. The industry? most perfect lightning protection technology ----three levels lightning protection (semiconductor, isolated transformer, photocoupler isolation )
16. Current industry? most wide power input range ----12VAC－48VAC/12VDC－48VDC
17. Current industry? most wide temperature operation range---- -45°C---- +85°C
18. Self-contained overall reliability design----semiconductor isolation, photocoupler isolation, transformer isolation, ESD, EMI, signal integrity, hardware division design.
19. Optional seven Baud Rate----1200, 2400, 4800, 9600, 19200, 38400, 57600
20. CAN Bus transmission speed 512K，the longest 100 meters---if adjust the transmission speed, the long-distance can reach 1,000 meters.