Remote control terminal for online monitoring of water quality

Abstract

The utility model discloses a remote control terminal used for water quality on-line monitoring, comprising a main control board used for controlling and realizing low power consumption on-line monitoring of water quality; the communication board is used for realizing communication connection between the remote control terminal and the water quality monitoring platform; the main control board comprises a single-chip microcomputer and a peripheral circuit of the single-chip microcomputer. The peripheral circuit comprises a power supply module, a digital signal acquisition module, a main control module and a remote communication module. The power supply module is electrically connected with the battery pack, each water quality sensor and other modules respectively and is used for supplying power to each water quality sensor and other modules by a direct-current power supply provided by the battery pack; the digital signal acquisition module is in communication connection with each water quality sensor and is used for acquiring digital signals output by each water quality sensor; the main control module is used for controlling the operation of each module in the remote control terminal and the processing work of data information; and the remote communication module is electrically connected with the communication board and is used for transmitting data information processed by the main control module to a water quality monitoring platform through the communication board.

Description

Technical Field

[0001] This utility model relates to the technical field of online water quality monitoring equipment, specifically a remote control terminal for online water quality monitoring. Background Technology

[0002] With the development of society and the economy and the improvement of people's living standards, increasingly higher requirements have been placed on the quality of tap water supply. To achieve this, multi-parameter water quality monitoring technology for tap water supply networks has emerged, serving as a powerful means to ensure that tap water supply quality meets standards. Traditionally, this field has largely relied on wired water quality testing equipment to monitor multiple parameters. This equipment is constantly powered, resulting in high energy consumption and requiring improvement. Utility Model Content

[0003] One technical problem this application aims to solve is to overcome the shortcomings of the above-mentioned related technologies and provide a remote control terminal for realizing low-power online water quality monitoring.

[0004] The technical solution adopted by this utility model to solve the technical problem is: a remote control terminal for online water quality monitoring, including a main control board for realizing online water quality monitoring;

[0005] A communication board is used to enable communication between the remote control terminal and the water quality monitoring platform;

[0006] The main control board includes a microcontroller and its peripheral circuits, the peripheral circuits including a power supply module, a digital signal acquisition module, a main control module, and a remote communication module;

[0007] The power supply module is electrically connected to the battery pack, each water quality sensor and other modules respectively, and is used to supply the DC power provided by the battery pack to each water quality sensor and other modules.

[0008] The digital signal acquisition module is communicatively connected to each water quality sensor and is used to acquire the digital signals output by each water quality sensor.

[0009] The main control module is used to control the operation of various modules and the processing of data information within the remote control terminal.

[0010] The remote communication module is electrically connected to the communication board and is used to transmit the data information processed by the main control module to the water quality monitoring platform through the communication board.

[0011] Compared with related technologies, this application has the following advantages: it provides a remote control terminal that can realize low-power online water quality monitoring, eliminating the need for wiring and reducing costs and power consumption.

[0012] Preferably, the power supply module is provided with a 12V output port, a 5V output port and a 3.6V output port;

[0013] The 12V output port is electrically connected to each solenoid valve respectively;

[0014] The 5V output port is electrically connected to the remote communication module.

[0015] The 3.6V output port is electrically connected to the main control module, the digital signal acquisition module, and each water quality sensor.

[0016] Preferably, the main control module consists of a microcontroller and its peripheral control circuits, and the microcontroller is an MSP430FR5994.

[0017] Preferably, the digital signal acquisition module consists of a 485 chip and its peripheral sampling circuit, wherein the 485 chip is a MAX3485EESA+T.

[0018] Preferably, the remote communication module adopts an EC200S module, which is electrically connected to the SIM card through the USIM pin interface; the microcontroller is connected to the EC200S module through serial communication ports TXD0_MCU and RXD0_MCU, input / output pins GPIO, and external interrupt pin EINT. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the electrical control structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the program structure of the microcontroller on the main control board of this utility model.

[0021] Figure 3 This is a block diagram of the main control board of this utility model.

[0022] Figure 4 This is a circuit diagram of the digital signal acquisition module of this utility model.

[0023] Figure 5 This is a schematic diagram showing the connection between the main control module microcontroller and the remote communication module of this utility model.

[0024] Figure 6 This is a schematic diagram showing the connection between the remote communication module and the SIM card of this utility model. Detailed Implementation

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] This embodiment is as shown in the figure. 1 The RTU1 shown is a remote control terminal for online water quality monitoring, which includes a main control board for realizing online water quality monitoring.

[0027] A communication board is used to enable communication between the remote control terminal and the water quality monitoring platform;

[0028] The main control board includes a microcontroller and its peripheral circuits. The program structure of the microcontroller is as follows: Figure 2 As shown, the software design of a microcontroller is mainly divided into three parts: the system layer, the driver layer, and the application layer. The system layer is the entry point of the program and is also responsible for device initialization and multi-task scheduling. The driver layer implements the driving control function for external components. The application layer implements the processing of business logic and application layer communication protocols.

[0029] The peripheral circuit is as follows Figure 3 The module shown includes a power supply module, a digital signal acquisition module, a main control module, and a remote communication module.

[0030] The power supply module is electrically connected to the rechargeable lithium battery pack, each water quality sensor and other modules respectively, and is used to supply the DC power provided by the rechargeable lithium battery pack to each water quality sensor and other modules.

[0031] The digital signal acquisition module is communicatively connected to each water quality sensor and is used to acquire the digital signals output by each water quality sensor.

[0032] The main control module is used to control the operation of various modules and the processing of data information within the remote control terminal.

[0033] The remote communication module is electrically connected to the communication board and is used to transmit the data information processed by the main control module to the water quality monitoring platform through the communication board.

[0034] In this embodiment, the power supply module has a 12V output port, a 5V output port, and a 3.6V output port. The 12V output is powered by a battery pack using DC, and the 12V output port is electrically connected to each solenoid valve. The 12V to 5V converter uses the TPS54302 chip. This chip requires minimal external circuitry to perform voltage regulation, has internal protection circuitry, good EMI performance, and meets the requirements of 4.5V to 28V input and 3A output, satisfying the hardware design requirements. The 5V output port is electrically connected to the remote communication module. The 5V to 3.6V voltage regulator chip is the ME6211C. This chip provides stable output voltage, a maximum input voltage of 6V, a maximum output current of 500mA, and voltage protection, satisfying the hardware design requirements. The 3.6V output port is electrically connected to the main control module, the digital signal acquisition module, and each water quality sensor.

[0035] Preferably, the main control module consists of a microcontroller and its peripheral control circuitry. The microcontroller is an MSP430FR5994, which features a 16-bit RISC architecture with a clock frequency up to 16MHz, 256KB of ferroelectric random access memory (FRAM), a 12-bit analog-to-digital converter, and four serial communication ports. The main functions of this microcontroller are:

[0036] a1) The control signal acquisition module periodically acquires water quality data measured by the sensor at set time intervals;

[0037] a 2) Store the digital signals acquired by the digital signal acquisition module into the peripheral storage chip of the microcontroller;

[0038] a 3) The analog signal acquired by the analog signal acquisition module is converted into a digital signal by the on-chip ADC, and then the digital signal is stored in the microcontroller's peripheral memory chip;

[0039] 4) Upload the stored water quality data to the cloud platform via a remote communication module.

[0040] like Figure 4 As shown, the digital signal acquisition module consists of a 485 chip and its peripheral sampling circuit. The 485 chip is a MAX3485EESA+T, used to transmit the data measured by each water quality sensor to the microcontroller.

[0041] The remote communication module uses the EC200S module, supporting a maximum downlink rate of 10Mbps and a maximum uplink rate of 5Mbps. It has the functions of establishing a heartbeat connection with the platform and entering a sleep state under low power consumption. Figure 6 As shown, the EC200S module is electrically connected to the SIM card via a USIM pin interface; as Figure 5As shown, the microcontroller communicates with the EC200S module through serial communication ports TXD0_MCU and RXD0_MCU, input / output pins GPIO, and external interrupt pin EINT.

[0042] Through the above design, the RTU achieves the following functions.

[0043] b1) Data acquisition and processing: It realizes the functions of acquiring and processing water quality data (including residual chlorine, pH, turbidity, conductivity, etc.), water temperature data, and system power supply status.

[0044] b 2) Local storage: Implemented local storage function for device configuration parameters; implemented local storage function for historical data to be reported in the period to be reissued.

[0045] b 3) Cloud platform communication: Based on the 4G network, the communication function between the equipment and the water quality early warning cloud platform is realized, including data reporting, command issuance, remote equipment program upgrade and other functions; satellite positioning function is realized.

[0046] b 4) Local Interaction: Implements local interaction interface functions, thereby enabling support for host computer software, touch screen and mobile APP, covering RTU data and status query, RTU parameter reading and writing, RTU control, water quality sensor data and status query, water quality sensor parameter reading and writing and other functions.

[0047] b 5) Valve control: Enables the opening and closing control of solenoid valves to support water conservation.

[0048] b 6) Sensor power supply on / off control: Implements power supply on / off control for each water quality sensor to support power saving.

[0049] b 7) Workflow control: Workflow control is implemented to coordinate the work of each part in a unified manner, and support for multiple work modes is achieved.

[0050] Through the above design, the RTU possesses the following outstanding advantages, enabling this electronic control device to be widely used in water quality monitoring in various scenarios.

[0051] c1) Highly integrated functions and compact size: It integrates power conversion, data acquisition and processing, platform communication, local interaction and other functions into a single device, and is compact in size, which can flexibly adapt to a variety of different complete equipment forms.

[0052] c 2) Strong protection capability: The RTU adopts protective measures such as potting inside and waterproof aviation connectors on the outside, which has strong protection capability and can adapt to harsh installation environment and extreme abnormal events.

[0053] c 3) Low power consumption: The RTU is designed for low power consumption at both the hardware and software levels. Combined with low power sensors and low power solenoid valves, the system supports pure built-in battery power supply, thus adapting to application scenarios where there is no mains power or no conditions for installing a solar power system.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A remote control terminal for online water quality monitoring, characterized in that, It includes a main control board for online water quality monitoring; A communication board is used to enable communication between the remote control terminal and the water quality monitoring platform; The main control board includes a microcontroller and its peripheral circuits, the peripheral circuits including a power supply module, a digital signal acquisition module, a main control module, and a remote communication module; The power supply module is electrically connected to the battery pack, each water quality sensor and other modules respectively, and is used to supply the DC power provided by the battery pack to each water quality sensor and other modules. The digital signal acquisition module is communicatively connected to each water quality sensor and is used to acquire the digital signals output by each water quality sensor. The main control module is used to control the operation of various modules and the processing of data information within the remote control terminal. The remote communication module is electrically connected to the communication board and is used to transmit the data information processed by the main control module to the water quality monitoring platform through the communication board.

2. The remote control terminal for online water quality monitoring according to claim 1, characterized in that, The power supply module is equipped with a 12V output port, a 5V output port and a 3.6V output port; The 12V output port is electrically connected to each solenoid valve. The 5V output port is electrically connected to the remote communication module. The 3.6V output port is electrically connected to the main control module, the digital signal acquisition module, and each water quality sensor.

3. The remote control terminal for online water quality monitoring according to claim 1, characterized in that, The main control module consists of a microcontroller and its peripheral control circuits. The microcontroller is an MSP430FR5994.

4. A remote control terminal for online water quality monitoring according to claim 3, characterized in that, The digital signal acquisition module consists of a 485 chip and its peripheral sampling circuit, wherein the 485 chip is a MAX3485EESA+T.

5. A remote control terminal for online water quality monitoring according to claim 3, characterized in that, The remote communication module uses an EC200S module, which is electrically connected to the SIM card via a USIM pin interface; the microcontroller communicates with the EC200S module via serial communication ports TXD0_MCU and RXD0_MCU, input / output pins GPIO, and external interrupt pin EINT.

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