Active rfid tag, application system and method thereof

A method for applying an active radio frequency identification (RFID) tag, comprising:

• step S502:
• uninterruptedly and repeatedly transmitting, by a coordinator, an instruction signal on a first channel for a preset period of time;
• step S504:
• receiving, by an active RFID tag, the instruction signal during the time period of an interception state;
• and
• step S506:
• establishing, by a reader/writer, communication with the active RFID tag on a second channel;
• wherein step S504 further comprises sub-step S5042:
• performing first filtering for signals received on the first channel to exclude the invalid signals;
• and
• step S504 further comprises sub-step S5044:
• performing a validity judgment based on digital information carried by the signal on the received signal having experienced first filtering to determine whether the received signal is the instruction signal for the tag based on digital information carried by the signal.

An active radio frequency identification (RFID) tag, comprising:

• a first filtering module, configured to perform first filtering for signals received by the active RFID tag on the first channel to exclude invalid signals;
• and
• a second filtering module, configured to perform a validity judgment on the received signal having experienced first filtering to determine whether the received signal is the instruction signal for the tag based on digital information carried by the signal;
• wherein the first filtering module is a hard filtering module, and filters the received signals based on the RF features;
• and
• the second filter module is a soft filter module and configured behind the first filter module, and performs the validity judgment based on digital information carried by the signal, such as whether the address code of the received signal is correct.

A system for applying an active radio frequency identification (RFID) tag, comprising:

• a control processor;
• a coordinator, configured to uninterruptedly and repeatedly transmit a wakeup instruction on a first channel;
• an active RFID tag, configured to receive the wakeup instruction during the time period of an interception state;
• and
• a reader/writer, connected to the control processor, and configured to establish communication with the active RFID tag on a second channel after the active RFID tag receives the wakeup instruction, and transmit an action instruction index to the active RFID tag;
• wherein the active RFID tag comprises:
• an instruction receiving module, configured to receive the action instruction index from the reader/writer;
• a storing module, configured to store a preset index-action mapping relationship;
• and
• an action executing module, configured to search out the action instruction corresponding to the action instruction index from the index-action mapping relationship, and execute the action instruction.

A system for applying an active radio frequency identification (RFID) tag, comprising:

• a control processor;
• a coordinator, configured to uninterruptedly and repeatedly transmit an instruction signal for a preset time period on a first channel, wherein the instruction signal comprises an action instruction index;
• and
• an active RFID tag, configured to receive the instruction signal during the time period of an interception state and perform an operation in response to the action instruction index;
• wherein the active RFID tag comprises:
• an instruction receiving module, configured to receive the action instruction index from the coordinator;
• a storing module, configured to store a preset index-action mapping relationship;
• and
• an action executing module, configured to search out the action instruction corresponding to the action instruction index from the index-action mapping relationship, and execute the action instruction.

A method for applying an active radio frequency identification (RFID) tag, comprising:

• step S602:
• uninterruptedly and repeatedly transmitting, by a coordinator, a wakeup signal on a first channel;
• step S604:
• receiving, by an active RFID tag, the wakeup signal during the time period of an interception state;
• step S606:
• establishing, by a reader/writer, communication with the active RFID tag on a second channel, and transmitting an action instruction index to the active RFID tag;
• and
• step S608:
• receiving, by the active RFID tag, the action instruction index from the reader/writer, and searching out the action instruction corresponding to the action instruction index from a preset index-action mapping relationship and executing the action instruction.

An active radio frequency identification (RFID) tag, comprising:

• an instruction receiving module, configured to receive the action instruction index from an external source;
• a storing module, configured to store a preset index-action mapping relationship;
• and
• an action executing module, configured to search out the action instruction corresponding to the action instruction index from the index-action mapping relationship, and execute the action instruction.