Water level monitoring device

Abstract

The utility model relates to the technical field of hydrological monitoring equipment, in particular to a water level monitoring device, which comprises a solar panel, an ultrasonic water level gauge, an IP67 waterproof box, a power management module, a storage battery, an internet of things communication device, a stainless steel support and a fixed base, and the power management module, the storage battery and the internet of things communication device are all arranged in the IP67 waterproof box. The solar panel, the ultrasonic water level gauge and the IP67 waterproof box are all installed on the stainless steel support. A water level sensor is arranged in the ultrasonic water level gauge, and a wireless WIFI transmission module, a LoRa module, a real-time clock and an MCU micro-control chip are arranged in the Internet of Things communication device. The water level monitoring device disclosed by the utility model has certain optimization reference significance in allusion to the problems of high failure rate, poor stability, difficulty in maintenance and the like in the current water level monitoring device by combining an ad hoc network mode with a low-power-consumption MCU (Microprogrammed Control Unit) micro-control chip.

Description

Technical Field

[0001] The present application relates to the technical field of hydrological monitoring equipment, and in particular to a novel water level monitoring device. Background Art

[0002] Water level monitoring technology is widely used in reservoirs, rivers, lakes, agriculture, forestry, fisheries, ship transportation and other industries. It can update and collect water level data in real time, and provide reliable data support for hydropower generation, water transport scheduling, flood control and drainage, farmland irrigation, etc.

[0003] At present, the main water level monitoring methods are traditional measurement methods, which use manual data collection from tools such as buoys and water level gauges, which consumes a lot of manpower and material resources, has low efficiency and large errors; the other is automatic monitoring methods, which can use radar, sound waves, images and other methods to collect water level data. The image method is used to collect data, which requires the transmission of a large amount of image data and has high requirements for network, transmission and storage technology. The radar method is more suitable for large-area water level measurement and needs to be calibrated in time; these devices need regular maintenance and management. Most of the above automatic water level monitoring devices are based on traditional transmission methods such as GPRS and wireless shortwave, which have high power consumption, high failure rate and difficult equipment maintenance; and at present, GPRS is also facing the problem of being out of the network, and water level monitoring devices are generally facing the problem of replacement. Summary of the invention

[0004] The purpose of the utility model is to provide a new type of water level monitoring device based on LoRa self-organizing network, which adopts LoRa communication and uses self-organizing network, combined with low-power MCU microcontroller chip and lithium battery, to achieve the application goal of one-time installation and maintenance-free for many years. In order to solve the problems of poor stability, high failure rate and difficult maintenance of current water level monitoring devices.

[0005] The technical solution adopted by the utility model is:

[0006] A water level monitoring device comprises a solar panel, an ultrasonic water level meter, a power management module, a battery, an Internet of Things communication device, a stainless steel bracket and a fixed base, wherein the stainless steel bracket is connected to the fixed base, and the solar panel, the ultrasonic water level meter, the power management module, the battery and the Internet of Things communication device are all mounted on the stainless steel bracket; the ultrasonic water level meter is equipped with a water level sensor, and the Internet of Things communication device is equipped with a wireless WIFI transmission module, a LoRa module, a real-time clock and an MCU microcontroller chip; the water level sensor, the wireless WIFI transmission module, the LoRa module, the real-time clock and the battery are all connected to the MCU microcontroller chip, and the water level sensor is used to collect water level data of a position to be detected and transmit it to the MCU microcontroller chip; the wireless WIFI transmission module is used to connect to a remotely controlled cloud platform signal, and is used to transmit water level data information and early warning signals; the real-time clock is used to record the collection time of water level data; the battery is used to power all power-consuming modules in the device, and the solar panel is mounted on the top of the stainless steel bracket and is connected to the power management module and the battery through a built-in wire, and is used to convert solar energy into electrical energy and store it in the battery.

[0007] Furthermore, the MCU microcontroller chip is an STM-32 series single-chip microcomputer, which is used to realize the overall intelligent control of the water level monitoring device, including the collection, analysis, directional storage and transmission of water level data to the early warning terminal and the cloud platform.

[0008] Furthermore, the power management module, battery, and IoT communication device are all built into an IP67 waterproof box, which is installed on a stainless steel bracket. The IP67 waterproof box can effectively prevent rain from affecting each module. The solar panel, ultrasonic water level meter, and IP67 waterproof box are installed on the stainless steel bracket in order from high to low. The door of the IP67 waterproof box is locked with a door lock structure, and the door can be opened during inspection for easy maintenance.

[0009] Furthermore, the water level monitoring device is provided with three warning levels of yellow, orange and red. The MCU microcontroller chip can send warning information of different levels according to different preset water level warning values ​​through the received water level data, so that the staff can make different responses.

[0010] Furthermore, the water level monitoring device transmits water level data to the cloud platform through the MCU microcontroller chip and the Internet of Things communication device, and the staff can perform remote monitoring and management through the cloud platform.

[0011] Furthermore, the water level monitoring device has a device query function through a cloud platform, and can query the monitoring status of the water level monitoring device.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are:

[0013] This water level monitoring device is equipped with a LoRa module for communication transmission. It has the characteristics of low power consumption, multiple nodes, low rate, wide range, and excellent architecture. It can timely and effectively transmit water level data to the cloud platform and early warning terminal to realize remote water level monitoring and early warning. At the same time, the utility model also uses an STM32 single-chip microcomputer, eliminating the analog-to-digital conversion circuit, making the transmission more stable and the data more accurate.

[0014] This water level monitoring device adopts a three-dimensional method to achieve a one-pole and integrated installation mode, which improves assembly efficiency and reduces installation costs. This water level monitoring device is based on the technical characteristics of narrowband IoT communication of the LoRa module, and is combined with a low-power MCU microcontroller chip and a built-in battery, which can achieve maintenance-free use for many years after one installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the water level monitoring device in the embodiment of the utility model.

[0016] Figure 2 This is a schematic diagram of the circuit connection of the working modules of the water level monitoring device in the embodiment of the utility model.

[0017] In the figure: 1-solar panel, 2-ultrasonic water level meter, 3-IP67 waterproof box, 4-stainless steel bracket, 5-fixed base, 6-water level sensor, 7-Internet of Things communication device, 8-battery, 9-power management module, 10-wireless WIFI transmission module, 11-LoRa module, 12-MCU microcontroller chip, 13-real-time clock, 14-cloud platform. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and therefore, the utility model is not limited to the limitations of the specific embodiments disclosed below.

[0019] See also Figure 1~Figure 2, a new type of water level monitoring device based on LoRa networking provided in this embodiment includes a solar panel 1, an ultrasonic water level meter 2, an IP67 waterproof box 3, a stainless steel bracket 4 and a fixed base 5; the fixed base 5 is used to fix the device at a position to be detected during installation and use, the stainless steel bracket 4 is fixedly connected to the fixed base 5, the solar panel 1, the ultrasonic water level meter 2 and the IP67 waterproof box 3 are installed on the stainless steel bracket 4 from high to low, the ultrasonic water level meter 2 is arranged horizontally, and is probed above the water surface during installation and use, and a water level sensor 6 is built in the ultrasonic water level meter 2; an Internet of Things communication device 7, a battery 8, and a power management module 9 are arranged in the IP67 waterproof box 3; the ultrasonic water level meter 2, the Internet of Things communication device 7, and the power management module 9 are all connected to the battery 8, and the solar panel 1 is connected to the battery through a built-in wire. The power management module 9 is connected to the battery 8, and the solar panel 1 is used to convert solar energy into electrical energy and store it in the battery 8, so as to improve the endurance of the battery 8 and maintain the long-term operation of the water level monitoring device; the Internet of Things communication device 7 includes a wireless WIFI transmission module 10, a LoRa module 11, a real-time clock 13 and an MCU microcontroller chip 12, and the wireless WIFI transmission module 10, the LoRa module 11, and the real-time clock 13 are all connected to the MCU microcontroller chip 12 (using an electrical connection or a signal connection); wherein the wireless WIFI transmission module 10 is used to transmit the monitored water level data information and early warning signal to the cloud platform 14, or to transmit the received remote control signal to the MCU microcontroller chip 12; the LoRa module 11 is a LoRa networking communication module, which uses a radio frequency technology based on spread spectrum communication, and is used to access a communication network group to realize a communication transmission function; the real-time clock 13 is an integrated clock chip, which is used to receive / send a time signal and record the collection time of water level data. The water level sensor 6 and the battery 8 are also connected to the MCU microcontroller chip 12 .

[0020] In this embodiment, the water level sensor 6 and the MCU microcontroller chip 12 are connected in a plug-in manner via a communication line built into the stainless steel bracket 4, and the communication line can transmit the water level data collected by the water level sensor 6 to the MCU microcontroller chip 12; the water level monitoring device adopts a three-dimensional manner, reflecting the one-pole and integrated design concept, which improves assembly efficiency while reducing installation costs; at the same time, the installation method adopts a motherboard plug-in structure, and the installation of various components is completed on site. The aviation plug is connected to the motherboard, and no on-site wiring is required, which fully guarantees the quality of the project (the aviation plug and the motherboard plug board can use any aviation plug that can be purchased on the market and can realize the connection function).

[0021] The MCU microcontroller chip 12 in this embodiment adopts the STM-32 series single-chip microcomputer. The STM-32 series single-chip microcomputer is powerful, has excellent performance, and low power consumption. It is a classic embedded microcontroller that can be used to realize the control of the overall program of the water level monitoring device, including data acquisition process, analysis after data acquisition, transfer to storage or transmission to the cloud platform 14, and system power monitoring; the STM-32 series single-chip microcomputer is used to replace the traditional MCS-51 single-chip microcomputer, and serial communication is used to eliminate the analog-to-digital converter, thereby improving the efficiency of data processing and the stability of data transmission. The battery 8 in this embodiment is a lithium battery, which is an independent built-in battery used to power all power modules of this water level monitoring device.

[0022] The utility model is a new water level monitoring device based on LoRa networking. The LoRa module it adopts has five major advantages: first, low power consumption, its sleep current is 0.2uA, the receiving current is 10mA, and the transmitting current is 30mA. Second, low cost. LoRa technology works in unlicensed frequency bands, making its link cost less than any other standardized communication technology, low infrastructure cost, and easy to build and deploy. Third, the transmission distance is long. While maintaining the communication distance, it also takes into account the characteristics of low power consumption; this allows it to cover most areas with only a few basic equipment. Fourth, strong anti-interference ability. LoRa technology has the advantages of high receiving sensitivity and strong signal-to-noise ratio. It solves the problem of fixed-frequency interference through some technical means. Therefore, the gateway / concentrator developed on this basis can receive and process data from multiple nodes in parallel. Fifth, long battery life. The low power consumption characteristics of LoRa technology greatly extend the battery life, so that the battery life can reach 10 years. According to the above characteristics, the new water level monitoring device based on LoRa networking provided by the utility model can be widely deployed, and can transmit water level data to the cloud platform 14 for management and analysis in a timely and long-term manner. At the same time, it can also be transmitted to the early warning terminal configured by the cloud platform 14 (for example: indicator light or alarm or computer or mobile phone and other sound and light alarm terminals) for timely early warning, thereby establishing a water level monitoring system integrating "monitoring-management-early warning" with the characteristics of low power consumption, low cost, long-distance transmission, strong anti-interference, and long battery life.

[0023] The working principle of the water level monitoring device of this embodiment is as follows: the water level sensor 6 and the MCU micro-control chip 12 are connected through a communication line and a serial port, and the water level data collected and processed by the water level sensor 6 is transmitted to the MCU micro-control chip 12 (decoding and analysis are performed in the MCU micro-control chip, and transmitted to the encoder integrated in the MCU micro-control chip, and the encoder encodes and encrypts the data). At the same time, the real-time clock 13 records the collection time of the water level data. Then, the MCU micro-control chip 12 transmits the data collected and transmitted by the water level sensor 6 to the cloud platform 14 and the early warning terminal through the Internet of Things communication device 7, and promptly reminds relevant personnel to make relevant emergency responses.

[0024] This water level monitoring device is equipped with a LoRa module for communication transmission. It has the characteristics of low power consumption, low cost, long-distance transmission, and excellent architecture. It can transmit water level data to the cloud platform and early warning terminal in a timely and long-term manner. This water level monitoring device adopts a motherboard structure and completes the installation of various components on site. There is no need for on-site wiring, which fully improves the quality of the project.

[0025] The water level monitoring device provided in this embodiment adopts a three-dimensional approach to achieve a one-pole and integrated installation mode, thereby improving assembly efficiency and reducing assembly costs. The water level monitoring device is based on LoRa networking technology and combines a low-power MCU microcontroller chip, an independent built-in lithium battery and a waterproof box, so that it can be installed once and maintained for many years in practical applications.

Claims

1. A water level monitoring device, characterized in that: It includes a solar panel, an ultrasonic water level meter, a power management module, a battery, an Internet of Things communication device, a stainless steel bracket and a fixed base, the stainless steel bracket is connected to the fixed base, and the solar panel, ultrasonic water level meter, power management module, battery and Internet of Things communication device are all installed on the stainless steel bracket; the ultrasonic water level meter is provided with a water level sensor, and the Internet of Things communication device is provided with a wireless WIFI transmission module, a LoRa module, a real-time clock and an MCU microcontroller chip; the water level sensor, the wireless WIFI transmission module, the LoRa module, the real-time clock and the battery are all connected to the MCU microcontroller chip, the water level sensor is used to collect water level data at the position to be detected and transmit it to the MCU microcontroller chip; the wireless WIFI transmission module is used to transmit water level data information and early warning signals; the real-time clock is used to record the collection time of water level data; the battery is used to power all power modules in the device; the solar panel is used to convert solar energy into electrical energy and store it in the battery.

2. The water level monitoring device according to claim 1, characterized in that: The solar panel is installed on the top of the stainless steel bracket and is connected to the power management module and the battery through built-in wires.

3. The water level monitoring device according to claim 1, characterized in that: The power management module, battery, and Internet of Things communication device are all built into an IP67 waterproof box, and the IP67 waterproof box is installed on a stainless steel bracket.

4. The water level monitoring device according to claim 1, characterized in that: The water level sensor communicates with the MCU microcontroller chip via a signal line built into the stainless steel bracket.

Images