Electronic constant temperature control system for medical logistics storage device

Abstract

The invention discloses an electronic constant-temperature control system of a medical logistics storage device. The system comprises a temperature adjusting device; the temperature adjusting device includes an amplifier, and a reference voltage source and a temperature induction voltage source connected with two input ends of the amplifier; the temperature induction voltage source is a voltage source with output voltage changed along with the temperature change; the reference voltage source and the temperature induction voltage source are respectively connected with a voltage locking storage device; an output end of the amplifier is connected with an input end of an AD converter; the AD converter is in control connection with the temperature adjusting device; the voltage locking storage device includes a capacitor, and further includes a logic module and an environmental temperature sensor; the environmental temperature sensor outputs digital temperature induction signals; and the signals are input in a timer set. The system is used for logistics storage of medical objects, in particular blood products or organs, can overcome the temperature deviation caused by power supply or device faults to a certain extent, and guarantees the transported medicines or organs to reach the destination in a manner of constant temperature and quality preservation.

Description

technical field [0001] The invention belongs to the electronic / medical field, and relates to a logistics storage device for medical articles, in particular to an electronic constant temperature control system for the medical logistics storage device. Background technique [0002] In the process of medical transportation, there are strict temperature requirements for medicines, blood products, vaccines, and organs. During the transportation process, they are not stable and reliable power grids, but the transportation tools have their own power supply or use battery power. At the same time Due to the turbulence of the incubator during transportation, or the fluctuation of the power supply voltage itself, it is easy to cause the change of the adjustable temperature reference jitter, or the resistance value of the thermistor to shift, resulting in the shift of the temperature control point of the constant temperature. Contents of the invention [0003] In order to overcome the...

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Problems solved by technology

[0002] In the process of medical transportation, there are strict temperature requirements for medicines, blood products, vaccines, and organs. During the transportation process, they are not stable and reliable power grids, but the transportation vehicles have their own power supply or use battery power. At the same time Due to the turbulence of the incubator during transportation, or the fluctuation of the power supply voltage itself, it is easy to cause the change of the adjustable temperature reference jitter, or the resistance value of the thermistor to shift, resulting in the shift of the temperature control point of the constant temperature

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