US 2013/0051425 A1 · TEMPERATURE RECORDER WITH RF TRANSMISSION INTERFACE

Abstract

A temperature recorder mainly includes a micro control unit (MCU), a temperature sensing circuit, a memory with RF transmission function, and at least one antenna unit. The MCU electrically connects to the temperature sensing circuit and the memory, and the antenna unit electrically connects to the memory. The temperature sensing circuit senses external temperature variations surrounding the temperature recorder, and the sensed temperature variations are progressed by the MCU and then stored into the memory in accordance with scheduled parameters. The temperature recorder can be connected externally through wired serial transmitting interface or wireless radio frequency (RF) transmitting interface when internal temperature data needs to be retrieved, or a new parameter needs to be written into the memory. Thus, the memory in the temperature recorder can be retrieved and written via both wired connection and wireless connection, the usage of the temperature recorder is more flexible.

Claims16

Dependent claims

A temperature recorder with RF transmission interface including:

a micro control unit;
a temperature sensing circuit electrically connected to the micro control unit, the temperature sensing circuit sensing external temperature variations surrounding the temperature recorder;
a timing circuit electrically connected to the micro control unit, the timing circuit providing clock cycle to the micro control unit for generating oscillatory signal by the micro control unit;
a memory with RF transmission function electrically connected to the micro control unit, the memory including dual transmission interfaces consisting of a serial transmitting interface and an RF transmission interface, the sensed temperature variations being stored into the memory for generating temperature variation data;
and
a first antenna unit electrically connected to the memory;
wherein the memory is configured to send temperature variation data wirelessly via the first antenna unit and the RF transmission interface of the memory, and the memory is configured to send temperature variation data externally via the wired serial transmitting interface of the memory.

4 more elements

Dependencies are inferred from the claim text.

Temperature recorder with rf transmission interface

Life of this patent

Temperature recorder with rf transmission interface

Life of this patent

Abstract

Claims16