2-9
detection board Syringe specification detection is achieved with a rotary
potentiometer. The module detects the battery charging status by detecting the
battery voltage.
The monitoring module monitors the power supply voltage of each module in real
time, and reports a main alarm to the main control module when the system is
abnormal, or drives the buzzer to implement the auxiliary alarm when the main
control module fails.
Battery LED
Monitoring
CPU
STM32F030C8
Motor drive circuit
Buzzer
Pressure detection
Rotary potentiometer
sampling
System voltage
detection
Syringe in-position
detection
Reference voltage
detection
Alarm lamp
Long potentiometer
sampling
Backup alarm
circuit
Main control CPU
serial port
communication
Battery charging status
detection
Block Diagram of Monitoring Module
Test points for key signals:
TP110 Reset signal of the monitoring CPU
TP58 U2 step signal controlled by the monitoring CPU
TP62 U2 enable signal controlled by the monitoring CPU
TP61 U2 direction signal controlled by the monitoring CPU
TP104 Output signal of long potentiometer
TP14 Output signal of rotary potentiometer
TP40 Syringe in-position detection chip.
TP15 I2C SCL signal for pressure detection
TP107 I2C SDA signal for pressure detection
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