A device and method for precise positioning of passive RFID tags
An RFID tag and precise positioning technology, applied in the direction of cooperative operation devices, record carriers used by machines, advanced technology, etc., can solve the problems of unable to drive passive RFID tags, unable to query and locate in batches, and unable to use passive, etc., to achieve The effect of simple design, high positioning accuracy and strong adaptability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0065] like figure 2 As shown, a precise positioning device for a passive RFID tag includes: a passive RFID tag and an external LED light, the passive RFID tag includes a radio frequency module, a control module, a memory and an LED driving unit;
[0066] The radio frequency module is used for wireless radio frequency communication with the reader; the control module is used to parse the LED control instructions with screening parameters sent by the reader and respond; the memory module is used to save the corresponding items. Identification information; the LED driving unit is used to drive the LED light on or off according to the response.
Embodiment 2
[0068] like figure 1 As shown, the positioning method using the precise positioning device of the passive RFID tag as described in Embodiment 1 includes:
[0069] (1) Externally adapted LED lights are attached to the passive RFID tag; the identification information of the corresponding item is recorded in the memory module in advance;
[0070] (2) Using the reader to send LED control instructions with screening parameters, the screening parameters include: instruction code (Code) part, LED control (Ctrl) part, comparison value (Value) part and action (Action) part;
[0071] The instruction code (Code) part is the instruction code of the LED control instruction; the LED control (Ctrl) part is used to control the LED to turn on or off: for example, 1 means on, 0 means off; the comparison value (Value) part uses When compared with the identification information: if they are the same, the identification information matches the LED control instruction; if not, the identification i...
Embodiment 3
[0080] According to the positioning method according to Embodiment 2, the screening parameters further include: a starting address (Pointer) part and a data length (Len) part; the starting address (Pointer) part and the data length (Len) part are determined according to Identify the screening data in the information, and compare the screening data with the comparison value (Value) part:
[0081] If the same, the identification information matches the LED control instruction;
[0082] If not, the identification information does not match the LED control instruction.
[0083] In the step (3), the radio frequency module receives the LED control instruction, and the control module reads the identification information of the corresponding item in the memory module, and then performs data information matching.
[0084] When the data length (Len) part corresponding to the screening parameter in the LED control command is 0, it means that all passive RFID tags are screened by the LED...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com