CN109292045A - A water quality monitoring buoy device that is easy to disassemble and assemble a water quality sensor - Google Patents

Abstract

The invention discloses a water quality monitoring buoy device convenient for dismounting a water quality sensor, which comprises a water quality buoy and a sensor module, wherein the water quality buoy comprises a buoy body, a power supply, a power management unit, a main control unit, a plurality of sensor module interfaces, an analog signal input line, an SPI bus a, a chip selection signal output line and a power line a; each sensor module comprises a sensor module shell, a water quality sensor, a sensor front end amplification board, an identification chip, an analog signal output line, an SPI bus b, a chip selection signal input line and a power line b. The connection mode of each sensor module interface, the main control unit and the sensor module is the same, and a user can connect a certain sensor module provided with different types of water quality sensors to any sensor module interface, so that the connection of the water quality buoy and the water quality sensor is more flexible and convenient, and the sensor is convenient to maintain and upgrade at the later stage.

Description

A water quality monitoring buoy device that is easy to disassemble and assemble a water quality sensor

technical field

The invention relates to the field of water quality monitoring, in particular to a water quality monitoring buoy device which is convenient for disassembly and assembly of a water quality sensor.

Background technique

At present, the water quality sensors on the market are basically integrated and installed with various types of water quality sensors. The purpose is to meet the water quality detection indicators required by various usage scenarios as much as possible. However, in actual usage scenarios, it is not used. All sensors, so the flexibility is relatively poor. Moreover, water quality sensors are generally more expensive, and unnecessary sensors will bring additional costs to users.

In addition, the sensor in the traditional water quality buoy adopts a relatively solidified installation method, and the installation and removal of the sensor is very difficult, which makes the repair, maintenance, and upgrade of the sensor in the later stage extremely difficult.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a water quality monitoring buoy device which is convenient for the disassembly and assembly of the water quality sensor.

In order to achieve the above purpose, the technical scheme adopted in the present invention is:

A water quality monitoring buoy device that is easy to disassemble and assemble a water quality sensor, comprising a water quality buoy and several sensor modules, the water quality buoy includes a buoy body, a power supply, a power management unit, a main control unit, a number of sensor module interfaces, an analog signal input line, and an SPI bus. a. Chip selection signal output line, power line a, power supply, power management unit, and main control unit are located in the float body, and the sensor module interface is arranged on the surface of the float body;

The power management unit is connected with the power supply, the main control unit, and each sensor module interface through the power line a, and each sensor module interface is connected with the main control unit through the analog signal input line and the chip select signal output line, respectively. The SPI bus a is connected to the main control unit, and the analog signal input line, the SPI bus a, the chip select signal output line, and the power line a all expose the sensor module interface;

Each sensor module includes a sensor module shell, a water quality sensor, a sensor front-end amplifying board, an identification chip, an analog signal output line, an SPI bus b, a chip select signal input line, and a power line b. The front-end amplifying board and the identification chip are arranged in the housing of the sensor module;

The water quality sensor is electrically connected to the sensor front-end amplifying board. The sensor front-end amplifying board and the identification chip are respectively connected to the power line b. The sensor front-end amplifying board is also connected to the analog signal output line. The identification chip is also connected to the SPI bus b and the chip selection signal input line. , The ends of the analog signal output line, the SPI bus b, the chip select signal input line, and the power line b all protrude from the sensor module shell port.

Further, the analog signal output line, SPI bus b, chip select signal input line, power line b of each sensor module shell port and the analog signal input line at the interface of each sensor module, SPI bus a, chip select signal The output line and power line a are arranged correspondingly, so that after each sensor module shell port is inserted into each sensor module interface, the analog signal output line and the analog signal input line, the SPI bus b and the SPI bus a, and the chip select signal input line are connected to each other. The chip select signal output line, the power line b and the power line a can be connected to each other.

Further, the power supply in the floating body is a lead-acid battery, the main control unit adopts an Arduino Leonado single-chip microcomputer, an a/d converter is arranged in the main control unit, and the identification chip adopts an EEPROM.

Further, the number of the sensor module interfaces is 2-6.

The beneficial effects of the present invention are:

Insert a sensor module installed with a certain type of water quality sensor into a sensor module interface, the main control unit sends the chip select signal level through the chip select signal output line, and detects whether there is a response from the SPI bus, and detects whether the interface is connected to a sensor. Module, the identification chip stores the type information, characteristic parameters, brand manufacturer and other information data of the water quality sensor. The main control unit reads the identification chip data in the sensor module through the SPI bus, and can detect which sensor module interface is connected. There are sensor modules and connected sensor types. The water quality sensor detects a certain indicator of water quality and generates a signal. The sensor front-end amplifier in the sensor module amplifies the signal of the water quality sensor, and the amplified signal is transmitted to the main control unit through the analog signal output line. Then, according to the read data, match the corresponding data conversion program to convert the raw data output by the sensor into standard unit data for storage or upload to realize real-time monitoring of water quality.

Each sensor module interface of the present invention is connected in the same way as the main control unit and the sensor module, and each sensor module interface is independently connected to the main control unit, and there will be no work interference between each other, various water quality sensors can work at the same time, and users can Connect a sensor module installed with different types of water quality sensors to any sensor module interface, which makes the connection between water quality buoys and water quality sensors more flexible, simple and reliable, and solves the high maintenance difficulty caused by the solidified installation method of traditional water quality sensors. It is difficult to upgrade and other problems, which is convenient for the maintenance and upgrade of the sensors in the later stage. At the same time, users can also select the required sensors according to their own needs, which greatly reduces the cost.

Description of drawings

The following drawings are only intended to illustrate and explain the present invention schematically, and are not intended to limit the scope of the present invention. in,

1 is a schematic diagram of the connection relationship between the power supply, the power management unit, the main control unit and the sensor module interface in the water quality buoy of the present invention;

2 is a schematic diagram of the connection relationship between the water quality sensor, the sensor front-end amplifying board, and the identification chip in the sensor module of the present invention.

Detailed ways

The related technical contents not mentioned below can be adopted or learned from the prior art.

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described The embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

As shown in Figure 1-2, the water quality monitoring buoy device, which is easy to disassemble and assemble the water quality sensor, includes a water quality buoy and several sensor modules. unit, 2 sensor module interfaces, analog signal input line, SPI bus a, chip select signal output line, power line a, power supply, power management unit, and main control unit are located in the float body, and the sensor module interface is arranged on the surface of the float body;

The power management unit is connected with the power supply, the main control unit, and each sensor module interface through the power line a, and each sensor module interface is connected with the main control unit through the analog signal input line and the chip select signal output line, respectively. The SPI bus a is connected to the main control unit, and the analog signal input line, the SPI bus a, the chip select signal output line, and the power line a all expose the sensor module interface;

Each sensor module includes a sensor module shell (not shown in the figure), a water quality sensor, a sensor front-end amplifier board, an identification chip, an analog signal output line, an SPI bus b, a chip select signal input line, and a power line b. The water quality sensor is set in the On the surface of the sensor module shell, the sensor front-end amplifying board and the identification chip are arranged in the sensor module shell;

The water quality sensor is electrically connected to the sensor front-end amplifying board. The sensor front-end amplifying board and the identification chip are respectively connected to the power line b. The sensor front-end amplifying board is also connected to the analog signal output line. The identification chip is also connected to the SPI bus b and the chip selection signal input line. , The ends of the analog signal output line, the SPI bus b, the chip select signal input line, and the power line b all protrude from the sensor module shell port.

Further, the analog signal output line, SPI bus b, chip select signal input line, power line b of each sensor module shell port and the analog signal input line at the interface of each sensor module, SPI bus a, chip select signal The output line and power line a are arranged correspondingly, so that after each sensor module shell port is inserted into each sensor module interface, the analog signal output line and the analog signal input line, the SPI bus b and the SPI bus a, and the chip select signal input line are connected to each other. The chip select signal output line, the power line b and the power line a can be connected to each other.

Further, the power supply in the floating body is a lead-acid battery, the main control unit adopts an Arduino Leonado single-chip microcomputer, an a/d converter is arranged in the main control unit, and the identification chip adopts an EEPROM.

For the convenience of view, the number of sensor module interfaces introduced in this embodiment is 2. Generally, 2-6 interfaces are actually set, and the number can be adjusted according to the actual usage.

The concrete application process of the present invention is as follows:

Insert a sensor module installed with a certain type of water quality sensor into a sensor module interface, the main control unit sends the chip select signal level through the chip select signal output line, and detects whether the SPI bus responds, if the SPI bus does not respond , it means that the sensor module is not connected to the interface. If there is a response from the SPI bus, it means that the interface has been connected to the sensor module, and the identification chip contains the type information, characteristic parameters, brand manufacturer and other information of the water quality sensor on the sensor module. Data, the main control unit reads the identification chip data in the sensor module through the SPI bus, and can detect which sensor module interface is connected to the sensor module and the connected sensor type. The water quality sensor detects an indicator of water quality and generates a signal. , the sensor front-end amplifier in the sensor module amplifies the signal of the water quality sensor, and the amplified signal is transmitted to the a/d converter of the main control unit through the analog signal output line, and then matches the corresponding data conversion program according to the read data. Convert the raw data output by the sensor into standard unit data, store or upload, and realize real-time monitoring of water quality.

The power management unit manages the power supply, and the power supply supplies power to the main control unit, the sensor module interface, the water quality sensor, the sensor front-end amplifying board, and the identification chip through the power cord.

Because each sensor module interface is connected to the main control unit and the sensor module in the same way, when each sensor module interface is inserted into a sensor module installed with other types of water quality sensors, its working principle is the same as the above process, which will not be repeated here. The sensor module interface is independently connected with the main control unit, and there will be no work interference between each other, and various water quality sensors can work at the same time.

Each sensor module interface of the present invention is connected in the same way as the main control unit and the sensor module, and the user can connect a sensor module with different types of water quality sensors to any sensor module interface, so that the connection between the water quality buoy and the water quality sensor is more flexible. , Simple and reliable, it solves the problems of high maintenance difficulty and difficult to upgrade caused by the traditional solidified installation method of water quality sensor, which is convenient for the maintenance and upgrade of the sensor in the later stage. At the same time, users can also select the required sensor according to their own needs, which greatly reduces the overhead.

Claims (4)

1. a water quality monitoring buoy device that is convenient for water quality sensor disassembly, comprising a water quality buoy and some sensor modules, is characterized in that: The water quality buoy includes a float body, a power supply, a power management unit, a main control unit, a number of sensor module interfaces, an analog signal input line, an SPI bus a, a chip select signal output line, and a power line a. The power supply, power management unit, and main control unit are located in Inside the float, the sensor module interface is arranged on the surface of the float; The power management unit is connected with the power supply, the main control unit, and each sensor module interface through the power line a, and each sensor module interface is connected with the main control unit through the analog signal input line and the chip select signal output line, respectively. SPI bus a is connected with the main control unit; Each sensor module includes a sensor module shell, a water quality sensor, a sensor front-end amplifier board, an identification chip, an analog signal output line, an SPI bus b, a chip select signal input line, and a power line b. The amplifying board and the identification chip are arranged in the sensor module shell; The water quality sensor is electrically connected to the sensor front-end amplifying board. The sensor front-end amplifying board and the identification chip are respectively connected to the power line b. The sensor front-end amplifying board is also connected to the analog signal output line. The identification chip is also connected to the SPI bus b and the chip selection signal input line. , The ends of the analog signal output line, the SPI bus b, the chip select signal input line, and the power line b all protrude from the sensor module shell port. 2. The water quality monitoring buoy device according to claim 1, characterized in that: the analog signal output line, the SPI bus b, the chip selection signal input line of the shell port of each sensor module, The power line b corresponds to the analog signal input line, SPI bus a, chip select signal output line, and power line a at the interface of each sensor module, so that after each sensor module shell port is inserted into each sensor module interface, the analog signal The signal output line and the analog signal input line, the SPI bus b and the SPI bus a, the chip select signal input line and the chip select signal output line, and the power line b and the power line a can be connected to each other. 3. The water quality monitoring buoy device according to claim 1, characterized in that: the power supply in the floating body is a lead-acid battery, and the main control unit adopts an Arduino leonado single-chip microcomputer, and the main control unit An a/d converter is set inside, and the identification chip adopts EEPROM. 4 . The water quality monitoring buoy device of claim 1 , wherein the number of the sensor module interfaces is 2-6. 5 .