No |
Performance |
RF Mono Product |
AM Product |
1 |
Transmitting signal |
Radio Frequency |
Ultrasonic |
2 |
Center Frequency |
8.2MHZ |
58KHz |
3 |
Frequency Range |
7.7～8.7MHz |
57.8KHz～58.2KHz |
4 |
Processor |
DSP and FPGA |
MCU or DSP |
5 |
Working Principle |
System capture the label signal according to the radar electron counter principle.Each detecting time,system would capture 20periods signal to analyse, and when these signal all reach the alarm standard condition,system then will send out alarm sound. |
When detect a label signal,system would receive 6 sampling signal continuously.If these 6 sampling signal are the same as the label signal,the system will send out alarm sound after receiving 4times of resonance signal continusly(each time 1/50 s) |
6 |
Anti-noise ability |
Adopts pulse transmitting field, with good antinoise ability |
Adopts pulse transmitting field, with good antinoise ability |
7 |
False alarm rate |
Almost no false alarm |
Almost no false alarm |
8 |
Access Composing |
Only one sensor can compose two access, two sensors can compose three access |
Only one sensor can compose two access, two sensors can compose three access |
9 |
Detection rate |
≥85% |
≥85% |
10 |
Detection range |
2×(70~120)with single Sensor |
2×(70~120)with single Sensor |
11 |
Price Vs performance |
System detecting frequency reach 8.2MHz and with 1MHz bandwidth, comapared with the AM frequency and bandwidth,this RF system is much more complex, higher quality and faster data processing which means high cost when manufacturing.In spite of that,our Promatic advocate ‘the best value and the best price’, price Vs performance is very good. |
Simple circuit and arithmetic.High price of detecting system and label,the price Us performance of AM system not very good. |
12 |
Power Consumption |
12W～20W |
25W～60W |
13 |
Electromagnetism radiation power |
Low（CE standard is 9dBμA/m） |
High（CE standard is 72dBμA/m） |
14 |
Label/Tag cost |
Low |
High |
| 15 |
Anti metallic interference function |
RF technology restriction,can not anti metallic interference |
Capable |
16 |
Application |
Supermarket, top garment store,shopping plaza |
Supermarket, top garment store,shopping plaza |
17 |
Technology development and compatibleness |
RF EAS frequency (8.2MHz) belongs to the HF(High frequency)sect,the same sect as the RFID HF(13.56MHz)technology.Cost will decrease a lot when these two technology are compatible in the future technology development. |
AM frequency is far from the other leading technology, cost will be a lot when it combine with other system.
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