Board features:
1. High stability oscillatory technology: Frequency fluctuation<2X10-5 Hz.
2. Fast and high precision frequency detection:single channel 0.33ms/four channel1.330ms, measurement error<2X10-5Hz.
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's entry, exit coil state, vehicle's 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's demand.
15. The industry's most perfect lightning protection technology:three levels lightning protection (semiconductor, isolated transformer, photocoupler isolation).
16. Current industry's most wide power input range:12VAC-48VAC/12VDC-48VDC.
17. Current industry's most wide temperature operation range:45--+85.
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.