RFID chhiartute hnathawh dan i hria em?

RFID radio frequency identification chu signal thawn chhuahna atana radio hman a ni a, chu chuan non-contact information identification a ti thei a ni. RFID system hian a hnathawh dan pangngaiin a thawh theih nan a tlem berah hmun hnih a mamawh a, chu chu electronic tag leh a chhiartu te an ni. Electronic tag hi radio frequency identification system a data carrier a ni a, a chhuahna tur hmun hi a inang lo hle. Tag antenna leh tag-specific chip atanga siam a ni. RFID reader hi data chhiarna atana hmanraw pawimawh ber a ni.

RFID reader hian RFID electronic tag hmangin (reader) antenna hmangin wireless hmangin a inbiak a, tag identification code leh memory data chu a chhiar thei a, a ziak thei bawk. Typical reader-ah chuan high-frequency module (transmitter leh receiver), control unit, leh chhiartute tan antenna a awm a.

RFID Reader hnathawh dan tur .

Radio frequency signal coupling space (non-contact) chu electronic tag leh reader inkar coupling element hmangin a thleng thei a ni. Coupling channel-ah chuan energy transmission leh data exchange chu timing relationship angin a thleng thei a ni. RFID system-a workflow tam zawk neih duh chuan article hi en la: RFID system-te workflow chu eng nge ni .

RFID reader te workflow thawn dan tur thupek:

1. Application Layer program chuan tag identification layer module call turin command a pe a, tag identification layer module chuan tag access tur instruction a siam a, chu instruction chu baseband processing module ah a thawn a ni.

2. Baseband processing module hian label identification layer instructions encode leh modulate in baseband signal a siam a, chu chu channel pahnih ah then a ni a, interface kaltlangin transmit a ni.

3. Data chu serial baseband signal-ah package-in RF front-end module-ah thawn a ni.

4. Serial baseband signal chu RF front-End module-ah a lut a, conversion hnuah UHF frequency band-ah modulate a ni a, power amplification, leh up-conversion-ah a awm a, chutah chuan filtering atan band-pass filter-ah a thawn a ni.

5. Filtering zawhah signal chu power amplifier-ah amplification atan thawn a ni a, chu chu antenna-ah transmission atan thawn a ni.

 

RFID reader-te hnathawh dan tur chu tag backscatter-a data information dawng turin:

1. RFID electronic tag hian reader atanga signal a dawng a, energy a hmu a, power-on hmangin a activate a, reader command a execute tan a, response a mamawh leh mamawh loh a rel a ni. Response a ngai a nih chuan chhanna information chu antenna kaltlangin backscattered takin an pass a ni. RF front-End module-ah thawn a ni.

2. RF front-End module chuan signal dawn chu band-ah a thawn a-pass filter atan filtering atan. Filtering zawhah carrier signal chu baseband signal-ah a awm leh a, low-noise amplifier, down-conversion, conversion leh part dangte hmangin a transmit leh a ni.

3. Data chu PC a baseband processing module ah interface hmangin a thawn thin.