Light intelligent water quality detection system and method
A water quality detection and intelligent technology, applied in the field of inspection and detection, can solve the problems of pollution diffusion, large manpower and material resources, complexity, etc., and achieve the effect of ensuring stability, simple structure and good performance
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Embodiment 1
[0040] see figure 1 , 2, which is a schematic structural diagram of a lightweight intelligent water quality detection system according to an embodiment of the present invention, including a solar photovoltaic panel 1, a power module 2, a control communication positioning module 3, a buoyancy member 4, a detection unit 6, a counterweight 8 and a casing, in,
[0041] The solar photovoltaic electric panel 1 is arranged on the upper surface to charge the power module 2, and the power module 2 supplies power for the control communication positioning module 3 and the detection part 6; The detection part 6 and the counterweight 8 are arranged below the buoyancy part 4 and wrapped by the shell; the detection part 6 includes a temperature detection circuit, a pH detection circuit, a turbidity detection circuit, a conductivity detection circuit and a dissolved oxygen detection circuit .
[0042] Through the above settings, the upper part is a cylinder with a height of 75mm and a roun...
Embodiment 2
[0044] see image 3 It is the schematic diagram of temperature detection circuit, including temperature sensor DS18B20, and the control communication positioning module includes MSP430 chip. The temperature sensor DS18B20 uses an I / O port to communicate with the microprocessor MSP430 chip in two directions. The power supply is 3V-5.5V, and the measurement results are serially transmitted in 9-12 digits without any external components.
Embodiment 3
[0046] see Figure 4 , is the schematic diagram of the pH detection circuit, including pH electrode P1, TL431 chip U1, AD8663 chip U3 and two LM358 chips U2.1 / U2.2, wherein the pH electrode P1 generates a corresponding DC voltage change according to the pH change in the water, To convert the PH value signal into an electrical signal, the built-in ADC in the MSP430 chip collects a positive voltage of 0-2.5V, and the output voltage of the PH electrode P1 includes negative voltage. It is necessary to add a reference voltage to the PH electrode P1 as a bias, so that the output voltage is all Positive voltage, use TL431 chip U1, short its pin 1 and pin 2, get a stable output voltage on pin 1, and then divide the voltage through the sliding rheostat R2, and transmit the generated reference voltage to an LM358 chip U2 On the pin 3 of .1, connect its pin 1 and pin 2 to form a voltage follower, which is used for impedance isolation of the input terminal of the PH electrode P1 to ensure...
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