Passive ultrahigh-frequency ultralow-power consumption RFID chip with built-in temperature sensor

An RFID tag, temperature sensor technology, applied in the RFID field, can solve the problems of temperature sensing resolution and error value incompatibility

Active Publication Date: 2014-11-19
赵犁
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the temperature sensing resolution and error value of existing RFID tags embedded with temperature sensors do

Method used

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  • Passive ultrahigh-frequency ultralow-power consumption RFID chip with built-in temperature sensor
  • Passive ultrahigh-frequency ultralow-power consumption RFID chip with built-in temperature sensor
  • Passive ultrahigh-frequency ultralow-power consumption RFID chip with built-in temperature sensor

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Embodiment Construction

[0025] like Figure 1-Figure 6 As shown, it is a related schematic diagram of a passive ultra-high frequency ultra-low power consumption RFID tag chip embedded with a temperature sensor in the present invention, and the tag chip is based on the EPC C1G2 protocol. like figure 1 As shown, the tag chip includes the following components: modulation and demodulation module, power management module, clock generation module, digital baseband module, temperature sensor module and memory.

[0026] The modulation and demodulation module is used to modulate and demodulate radio frequency signals, and use backscatter to upload data to the reader.

[0027]The power management module rectifies incoming radio frequency (RF) signals to generate multiple DC power supply voltages for other modules. In addition, the power management module also provides a reference current for the analog module and a power-on reset signal for the digital circuit.

[0028] The clock generation module provides ...

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Abstract

The invention discloses a passive ultrahigh-frequency ultralow-power consumption RFID chip with a built-in temperature sensor. The chip comprises a power management module, a modulation-demodulation module, a clock generation module, a digital base-band module, a temperature sensor module and a memory. By low-power consumption treatment processing of the passive ultrahigh-frequency RFID chip with the built-in temperature sensor, the sensitivity and the read-write distance of the RFID chip with the built-in temperature sensor are improved. In addition, the built-in temperature sensor is subjected to high-precision and low-error processing, and thus a more stable and more accurate temperature measurement value can be obtained, thereby providing more reliable temperature data.

Description

technical field [0001] The invention relates to RFID technology, in particular to a passive ultra-high frequency ultra-low power consumption RFID tag chip embedded with a temperature sensor. Background technique [0002] Radio frequency identification technology (RFID) is a non-contact automatic identification technology implemented by radio frequency signals. It uses radio frequency to conduct non-contact two-way communication, so as to achieve automatic identification of target objects and related data collection. The ultra-high frequency (UHF) tag used in the EPC C1G2 protocol refers to an RFID tag with a working frequency of 860MHz to 960MHz, which has the advantages of long read-write distance, fast reading speed, and wide range of action. [0003] With the rapid development of Internet of Things technology, the application of integrating item identification technology and sensing technology is becoming more and more important. Therefore, RFID tags with environmental a...

Claims

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Application Information

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IPC IPC(8): G06K19/077G01K7/00
Inventor 赵犁粱锦和崔志英阿明·贝尔马克王波徐旻刘健
Owner 赵犁
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