阅读说明：本技术 一种智能水质检测装置 (Intelligent water quality detection device ) 是由 李勇 李楠 于 2021-07-27 设计创作，主要内容包括：本发明公开一种智能水质检测装置,涉及水质检测领域,包括主控芯片、通信模块、水质检测模块、PH检测模块和水位检测模块,所述信模块、水质检测模块、PH检测模块和水位检测模块都与主控芯片相连,通过主控芯片统一接受整理检测数据,并通过通信模块,以无线的方式远程发送给终端。其中通过电导率传感器加测水质的TDS数值,通过超声波检测水位,通过PH传感器和PH值转换器来检测PH,检测全面且准确。(The invention discloses an intelligent water quality detection device, which relates to the field of water quality detection and comprises a main control chip, a communication module, a water quality detection module, a PH detection module and a water level detection module, wherein the communication module, the water quality detection module, the PH detection module and the water level detection module are all connected with the main control chip, and receive, sort and send detection data uniformly through the main control chip and remotely send the detection data to a terminal in a wireless mode through the communication module. Wherein add the TDS numerical value of surveying quality of water through conductivity sensor, detect the water level through the ultrasonic wave, detect PH through PH sensor and PH value converter, detect comprehensively and accurately.)

1. An intelligent water quality detection device is characterized by comprising a main control chip, a communication module, a water quality detection module, a PH detection module and a water level detection module, wherein the communication module, the water quality detection module, the PH detection module and the water level detection module are all connected with the main control chip;

the communication module adopts a WiFi module for wireless communication and is used for information transmission between the main control chip and the remote terminal;

the water quality detection module adopts a conductivity sensor and is used for detecting TDS values of various water qualities, so that the conductivity parameters of chemicals and liquid in water can be detected, and the conductivity parameter data is transmitted to the main control chip;

the PH detection module consists of a PH sensor and a PH value converter, the PH sensor detects the concentration of hydrogen ions in a water sample, measured data is converted into a specific voltage signal through the PH value converter, the voltage signal is transmitted to the main control chip, and the main control chip changes the output voltage signal into PH value data in a solution to be detected according to a standard curve;

the water level detection module adopts the ultrasonic ranging assembly to detect the height of the water level, the main control chip sends a signal to the ultrasonic ranging assembly, the ultrasonic ranging assembly receives the signal and then detects the signal, detection information is transmitted to the main control chip, and the main control chip performs corresponding calculation through A/D conversion to obtain the distance.

2. The intelligent water quality detection device according to claim 1, characterized in that: the main control chip is composed of a singlechip, a clock source circuit, a program downloading related circuit, a key reset circuit, a voltage-stabilized power supply circuit and an I/O port load circuit.

3. The intelligent water quality detection device according to claim 2, characterized in that: the water level detection module comprises an ultrasonic radio frequency transmitter and an ultrasonic receiver, the ultrasonic radio frequency transmitter transmits ultrasonic waves after receiving detection signals, the ultrasonic waves return after encountering obstacles, the ultrasonic receiver transmits detection data to the main control chip after receiving the signals, the main control chip sends required time periods to the single chip microcomputer through A/D conversion, and then the distance is obtained through corresponding calculation.

4. The intelligent water quality detection device according to claim 1, characterized in that: the PH detection module comprises temperature compensation, temperature compensation software carries out software, and the calculation mode is the Nernst equation.

5. The intelligent water quality detection device according to claim 1, characterized in that: the main control chip is further connected with a power supply module and a display module, the power supply module supplies power to the whole device, and the display module adopts a display with the model of LCD1602 to display output information.

6. The intelligent water quality detection device according to claim 1, characterized in that: the RS pin of the display module has the function of register selection, and selects a data register when in high level and selects an instruction register when in low level; the RS pin and the RW pin can write in instructions or display addresses when both are at low level; the RS pin is at a low level, and the RW pin can read signals when being at a high level; when the RS pin is at a high level and the RW pin is at a low level, data can be written.

Technical Field

The invention relates to the field of water quality detection, in particular to an intelligent water quality detection device.

Background

Water quality safety monitoring is an important part of water resource management, water quality detection comprises five conventional items (including temperature, PH, dissolved oxygen, conductivity and turbidity) and other monitoring parameters peculiar to the environment in certain fields in the industry, for example, water level is generally required to be detected, and water monitoring has important significance on water environment safety.

These project data that need detect often need multiple complicated check out test set, and the data is complicated numerous, still generally need the people to go to download data, and it is very troublesome to unify the arrangement again.

Disclosure of Invention

The invention aims to provide an intelligent water quality detection device which receives, arranges and detects data uniformly through a main control chip and remotely sends the data to a terminal in a wireless mode through a communication module. Wherein add the TDS numerical value of surveying quality of water through conductivity sensor, detect the water level through the ultrasonic wave, detect PH through PH sensor and PH value converter, detect comprehensively and accurately.

An intelligent water quality detection device comprises a main control chip, a communication module, a water quality detection module, a PH detection module and a water level detection module, wherein the communication module, the water quality detection module, the PH detection module and the water level detection module are all connected with the main control chip;

the communication module adopts a WiFi module for wireless communication and is used for information transmission between the main control chip and the remote terminal;

the water quality detection module adopts a conductivity sensor and is used for detecting TDS values of various water qualities, so that the conductivity parameters of chemicals and liquid in water can be detected, and the conductivity parameter data is transmitted to the main control chip;

the PH detection module consists of a PH sensor and a PH value converter, the PH sensor detects the concentration of hydrogen ions in a water sample, measured data is converted into a specific voltage signal through the PH value converter, the voltage signal is transmitted to the main control chip, and the main control chip changes the output voltage signal into PH value data in a solution to be detected according to a standard curve;

the water level detection module adopts the ultrasonic ranging assembly to detect the height of the water level, the main control chip sends a signal to the ultrasonic ranging assembly, the ultrasonic ranging assembly receives the signal and then detects the signal, detection information is transmitted to the main control chip, and the main control chip performs corresponding calculation through A/D conversion to obtain the distance.

Preferably, the main control chip is composed of a single chip microcomputer, a clock source circuit, a program downloading related circuit, a key reset circuit, a voltage stabilizing power supply circuit and an I/O port load circuit.

Preferably, the water level detection module comprises an ultrasonic radio frequency transmitter and an ultrasonic receiver, the ultrasonic radio frequency transmitter transmits ultrasonic waves after receiving detection signals, the ultrasonic waves return after encountering obstacles, the ultrasonic receiver transmits detection data to the main control chip after receiving the signals, the main control chip transmits the required time period to the single chip microcomputer through A/D conversion, and then the distance is obtained through corresponding calculation.

Preferably, the PH detection module comprises temperature compensation, the temperature compensation software is used for performing software, and the calculation mode is a Nernst equation.

Preferably, the main control chip is further connected with a power module and a display module, the power module supplies power to the whole device, and the display module displays output information by using a display with the model of LCD 1602.

Preferably, the RS pin of the display module is used for register selection, and selects the data register at a high level and selects the instruction register at a low level; the RS pin and the RW pin can write in instructions or display addresses when both are at low level; the RS pin is at a low level, and the RW pin can read signals when being at a high level; when the RS pin is at a high level and the RW pin is at a low level, data can be written.

The invention has the advantages that: the detection data are received and sorted in a unified mode through the main control chip, and the detection data are sent to the terminal in a wireless mode through the communication module. Wherein add the TDS numerical value of surveying quality of water through conductivity sensor, detect the water level through the ultrasonic wave, detect PH through PH sensor and PH value converter, detect comprehensively and accurately.

Drawings

FIG. 1 is a system schematic of the apparatus of the present invention;

FIG. 2 is a circuit diagram of an ultrasonic sensor of the apparatus of the present invention;

FIG. 3 is a circuit diagram of a TDS sensor in the apparatus of the present invention;

FIG. 4 is a circuit diagram of a pH sensor of the apparatus of the present invention;

FIG. 5 is a circuit diagram of a liquid crystal display device according to the present invention;

fig. 6 is a circuit diagram of a WIFI module in the device of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the main control module mainly comprises a single chip, a clock source circuit, a program downloading related circuit, a key reset circuit, a voltage-stabilized power supply circuit, and an I/O port load circuit.

The water level measuring module mainly comprises an ultrasonic radio frequency transmitter, an ultrasonic receiver and a related control circuit module. The module includes an ultrasonic transmitter, an ultrasonic receiver, and a control circuit. The ultrasonic sensor circuit diagram is shown in fig. 2.

The water quality detection module adopts a TDS sensor control module, and can detect the TDS value of water quality in real time. A TDS sensor module circuit diagram is shown in fig. 3.

In the PH detection module, VCC of a PH value detection sensor is a positive input port of a 5V power supply (generally, only 5V can be used, and 3.3V is not allowed to be used); GND is a negative input port of a 5V power supply; the P0 is a PH analog measurement output port (generally 0-5V), and a blue potentiometer can automatically adjust the voltage and output value of the P0 port. 2V 5: a reference 2.5V (or not) T1 is the temperature output (which can be used after inserting the DS18B20 temperature sensor, i.e. a white terminal interface on a module) and the output signal is the digital signal of DS18B 20. The function of temperature compensation is mainly to compensate through software, and the calculation mode is the Nernst equation. (since temperature changes have less effect on pH, it is recommended that temperature compensation be unnecessary under non-specific conditions). The PH sensor schematic is shown in fig. 4.

The display module employs an LCD1602 with standard 14 pins, and the pins of the interface are described as follows: the VSS pin is connected to ground, the VDD pin is connected to a 5V positive power supply, and the contrast adjustment terminal of the LCD is pin A0. The RS pin functions as a register select, a data register when high and an instruction register when low. The read/write signal line is a RW pin, and performs a read operation at a high level and a write operation at a low level. The RS and RW can write a command or a display address when both are at a low level, read a signal when the RS is at a low level RW, and write data when the RS is at a high level RW. The pin E is a liquid crystal use function command terminal facing a user, and when the terminal E is converted into a low voltage stabilization level due to continuous jump to a high level, the liquid crystal module can automatically execute the enabling command. D0-D7 are 8-bit bidirectional data lines, which are respectively connected to PB8-PB 15. The two pins A and K are suspended. The system uses the LCD1602 as a display element to display the output information, and the specific circuit diagram is shown in fig. 5.

The communication module adopts a WIFI wireless communication module, and one of the main characteristics of WIFI (wireless fidelity, wireless fidelity network technology) is that the data transmission speed is relatively high, and the communication module can also automatically control and adjust the network bandwidth, so that the safety and stability of a wireless network can be effectively ensured and the reliability of the network can be ensured. The WIFI module circuit diagram is shown in fig. 6.

The specific implementation mode and principle are as follows:

the water level measuring module is composed of an ultrasonic radio frequency transmitter, an ultrasonic receiver and a related control circuit module. By means of the characteristic of good ultrasonic reflectivity, the basic design and the working principle are as follows: the main control chip sends a signal to the ultrasonic module, the ultrasonic transmitting end sends ultrasonic waves after the module receives data, the ultrasonic waves return after encountering an obstacle, the receiving end sends a signal to the main control chip after receiving the signal, the main control chip sends a required time period to the single chip microcomputer through A/D conversion, and then the distance is obtained through corresponding calculation.

The conductivity sensor module that the water quality testing module adopted can detect the TDS numerical value of all kinds of quality of water in real time, can realize detecting the conductivity parameter of the chemistry and the liquid in aquatic. Total dissolved solids, which we generally refer to as the total amount of each dissolved solid, is measured in milligrams per liter (mg/L), and expresses how many milligrams of dissolved solids are dissolved in at least 1 liter of water. Higher TDS values indicate particularly high solute concentrations in the water.

The PH detection module consists of a PH sensor and a PH value converter, the PH sensor detects the concentration of hydrogen ions in the water sample, the measured data is converted into specific voltage signals through the PH value converter, and then the output voltage signals are changed into PH value data in the solution to be detected according to a standard curve.

The wireless communication technology refers to long-distance transmission communication among a plurality of nodes without propagation through conductors or cables, and wireless communication can be performed by using a WiFi module or the like. The wireless communication comprises various fixed, movable and portable applications, and remote data display is realized through a mobile phone serial assistant.

Based on the above, the invention receives and arranges the detection data uniformly through the main control chip, and sends the detection data to the terminal in a wireless manner through the communication module. Wherein add the TDS numerical value of surveying quality of water through conductivity sensor, detect the water level through the ultrasonic wave, detect PH through PH sensor and PH value converter, detect comprehensively and accurately.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.