Method for implementing digitalized infusion monitoring and alarming
An infusion bottle, nurse's technology, applied in the medical field, to achieve the effect of preventing major medical accidents
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[0054] Depend on Figure 3-6 Together they constitute the signal conversion and amplifier circuits within the central control system 1 . Terminal JP1 is connected with liquid medicine detection pressure sensor 2, in which pins 1 and 4 of terminal JP1 provide 5V power for the sensor, pins 2 and 3 input analog signals IN+ and IN- of the liquid pressure detection sensor, pins 2 and 3 are connected to U1 Pins 3 and 2 in U1 are connected; pin 6 in U1 is connected to pin 1 in U3; pin 3 (SCL) and pin 4 (SDA) in U3 are respectively connected to the programmable C8051F047 Pins 48 and 49 in the microcontroller are connected. Resistor R61, capacitor C61 and chip U6 form a peripheral circuit, which is connected to pin 5 of U1 through pin 8 of U6 to provide a reference voltage of 1.25V for chip U1. The resistor R61 is connected with the 5V power supply in the power module.
[0055] like Figure 7 The shown circuit diagram adopts 51 series microprocessor, which is composed of programmab...
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