Wireless transmission device for monitoring quality of domestic water on line

Abstract

The utility model relates to a wireless transmission device for monitoring the quality of domestic water on line, and belongs to the technical field of water quality monitoring and wireless transmission, the wireless transmission device comprises a pipe fitting, a module fixedly installed on the inner wall of the pipe fitting and a TDS probe located outside the module, and a threaded pipe is fixedly mounted at the end part of the connecting cylinder. According to the wireless transmission device for monitoring the quality of the domestic water on line, only 2-3 pieces of water quality monitoring data are transmitted every day instead of real-time transmission, so that the working frequency of the wireless data transmission module is greatly reduced, and the power consumption is reduced. Through a strategy of low-frequency data acquisition and transmission, the service life of a battery is prolonged, a CR2450 battery can be used for half a year to one year, when the device does not execute a water quality detection or data transmission task, the MCU, the TDS sensor and the wireless transmission module all enter a low-power-consumption or sleep mode, and the standby power consumption is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water quality monitoring and wireless transmission, in particular to a wireless transmission device for online monitoring of domestic water quality. BACKGROUND

[0002] Water quality monitoring is a key link to ensure drinking water safety and environmental protection. With the increasing problem of water pollution, how to realize real-time online monitoring of water quality has become an important research topic. Traditional water quality detection methods usually rely on laboratory analysis, which requires manual sampling and taking samples back to the laboratory for chemical analysis. Although this method has high accuracy, it has several significant shortcomings: tedious operation, long time-consuming, unable to realize real-time monitoring of water quality, and high labor cost. Therefore, in recent years, convenient online water quality monitoring technology has gradually attracted attention, which can better meet the demand for real-time monitoring of water quality in households, industrial and municipal water supply systems, etc.

[0003] Currently, the key technologies in the field of water quality detection include monitoring of turbidity, total dissolved solids (TDS), pH value, dissolved oxygen and heavy metal ion concentration, etc. Among them, total dissolved solids (TDS) is one of the important indicators for measuring water quality, which can reflect the total amount of dissolved inorganic salts and organic matter in water. High TDS value indicates that there are more impurities in the water, which may threaten the safety of drinking water.

[0004] Currently, there are some portable instruments and fixed monitoring devices for TDS monitoring on the market, but these devices still have some shortcomings: although portable TDS monitors can provide relatively accurate detection data, they need to be operated manually after collecting water samples, and cannot realize real-time online monitoring. This detection method is extremely inconvenient for monitoring the water quality in the pipeline, especially when the water quality changes rapidly, manual detection cannot respond in time, which may lead to the water quality problem not being discovered in time;

[0005] Water quality monitoring equipment is usually installed near the pipeline or water source and exposed to a humid environment for a long time. Some existing devices have poor waterproof design and are prone to failure due to environmental moisture or water flow contact, reducing their service life.

[0006] Based on the above problems, a wireless transmission device for online monitoring of domestic water quality is proposed to solve the problem. CONTENT OF THE INVENTION

[0007] In view of the shortcomings of the prior art, the present application provides a wireless transmission device for online monitoring of domestic water quality, which has the advantages of wireless transmission function, allowing users to check water quality data at any time through a mobile terminal, combining with intelligent alarm function, timely responding to water quality changes, etc.

[0008] To achieve the above object, the application provides the following technical scheme: a wireless transmission device for online monitoring of domestic water quality, comprising a pipe, a module fixedly installed on the inner wall of the pipe, and a TDS probe located outside the module, one end of the pipe is rotatably installed with a connecting barrel, and the end of the connecting barrel is fixedly installed with a threaded pipe.

[0009] Further, the module is specifically a TDS sensor module, a wireless transmission module, an MCU control module, and a power module.

[0010] Further, a threaded pipe is fixedly installed on the flange plate, and a screw is rotatably installed in the threaded pipe for threaded connection with the positioning plate.

[0011] Further, a threading hole is formed through the side surface of the threaded pipe, and a blocking ball is attached to the threading hole on the outside of the threaded pipe.

[0012] Further, a sealing ball is extruded at one end of the threaded pipe, and an elastic band is connected between the sealing ball and the blocking ball.

[0013] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0014] The wireless transmission device for online monitoring of domestic water quality greatly reduces the working frequency of the wireless data transmission module and reduces power consumption by transmitting only 2 to 3 water quality monitoring data per day instead of real-time transmission. Through the strategy of low-frequency data acquisition and transmission, the battery life is extended, and a CR2450 battery can maintain a usage time of up to six months to one year. When the device is not performing water quality detection or data transmission tasks, the MCU, TDS sensor, and wireless transmission module all enter a low-power or sleep mode, further reducing standby power consumption. The wireless module selects a low-power, long-distance communication technology (such as BLE or LoRa), which can effectively reduce power consumption and cost while meeting data transmission needs. Compared with high-power WiFi or cellular network communication technology, BLE or LoRa is more suitable for daily monitoring scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic diagram of the overall structure of the application;

[0016] Fig. 2 is a schematic diagram of the structure of the threaded pipe of the application;

[0017] Fig. 3 is a schematic diagram of the structure of the flange plate of the application.

[0018] In the figure: 1, pipe; 2, module; 3, TDS probe; 4, connecting barrel; 5, threaded pipe; 6, positioning disc; 7, flange plate; 8, screw pipe; 9, blocking ball; 10, elastic band; 11, sealing ball; 12, threading hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figs. 1 to 3 The wireless transmission device for online monitoring of domestic water quality in the embodiment includes a pipe 1, a module 2 fixedly installed on the inner wall of the pipe 1, and a TDS probe 3 located outside the module 2. The TDS probe and the module 2 are connected through a sealing ring, so that the connection of the TDS probe is well sealed.

[0021] It is additionally explained that the pipe 1 is a copper pipe for packaging electronic components in a copper shell. The sealing ring and waterproof glue are arranged to seal the module 2, so that external moisture cannot enter the electronic components, and long-term stable use in a humid environment is ensured.

[0022] In the embodiment, the module 2 specifically includes:

[0023] A TDS sensor module is used to detect the total dissolved solids TDS concentration in water. The TDS sensor is installed in the core part of the device and contacts with the pipeline water flow, which can intermittently detect the change of water quality and reduce battery consumption.

[0024] A wireless transmission module is responsible for transmitting the data collected by the TDS sensor to a remote terminal through a wireless way. The module supports low-power wireless transmission protocols such as BLE Bluetooth Low Energy or LoRa. Only 2 to 3 data need to be transmitted per day, which effectively reduces power consumption and is suitable for battery power supply.

[0025] An MCU control module is a microcontroller unit MCU used to manage the operation of the device, intermittently obtain data from the TDS sensor, and control the wireless transmission module to send data to the remote terminal. The MCU has a low-power mode, and the device is only activated when necessary and is in a dormant state at ordinary times.

[0026] A power module uses a CR2450 button cell battery for power supply. The battery capacity is moderate and suitable for long-time low-power work. All modules of the device are optimized to ensure that the battery can be continuously powered for at least half a year.

[0027] Further, the TDS probe is in contact with the water flow, and the water quality data is collected intermittently. To save power, the sensor is set to collect data 2 to 3 times a day, and the data collection is started at a fixed time.

[0028] The wireless transmission module communicates with the MCU through the I2C or SPI bus. After the MCU collects the TDS data, it processes the data and sends it to the user terminal device through the wireless transmission module. The data transmission frequency is reduced to 2 to 3 times a day to save power.

[0029] The CR2450 button cell provides power to the device through the power management module, which has a low-power design. The MCU is in deep sleep mode most of the time, and is only activated during data collection and transmission, maximizing battery life.

[0030] The TDS sensor is set to start 2 to 3 times a day, and the MCU will activate the sensor to collect the current water quality data each time it starts. The collection time interval can be set to a fixed time period, such as every 8 hours. After the MCU receives the detection data from the TDS sensor, it will perform preliminary processing and determine whether the data is within the normal range. Normal data will be marked as "normal", and abnormal data will be marked as "abnormal" and will be transmitted first.

[0031] The specific wireless transmission process of module 2 is that the water quality data processed by the MCU will be stored in the device's memory, and 2 to 3 data will be transmitted every day. Transmission can be done through low-power Bluetooth BLE or other energy-saving wireless communication methods. During transmission, the MCU activates the wireless module and sends the data to the user's mobile application or remote server. In battery mode, the data transmission frequency is greatly reduced, and only data transmission is performed at a set time interval, which can be set to once a day or adjusted to 2 to 3 times according to user demand.

[0032] It should be noted that, to maximize battery life, the MCU and TDS sensor are in low-power sleep mode most of the time, and only activate for collection and transmission when the set collection time arrives. After collection and transmission are complete, the system automatically enters sleep mode. Using a CR2450 button cell, the device's design power consumption is controlled within a very low range, ensuring that the battery can support normal operation for six months to a year. The battery power supply mode is simple and easy for users to replace the battery.

[0033] In a specific implementation, the device is installed on a water pipe, the device interface is adapted to a common water pipe, and a user only needs to tighten the interface. The device can be placed at any position of a water pipe, such as a water inlet pipe. After installation, the device is automatically started without additional settings. Water quality collection and data transmission are performed at a fixed time every day. A user can receive daily water quality data through a mobile phone APP or a remote server. The user can view 2 to 3 pieces of daily water quality monitoring data through a mobile phone or a computer. The data includes a TDS value. If the water quality is abnormal, the data is marked as abnormal, reminding the user to take corresponding measures. When the device power is insufficient, the user can receive a prompt through an indicator light on the device or a mobile phone APP. The device rear shell is opened, a CR2450 button cell is replaced, and the device can continue to be used.

[0034] In the embodiment, a connecting barrel 4 is rotatably installed on one end of the pipe fitting 1. A threaded pipe 5 is fixedly installed at an end of the connecting barrel 4 for facilitating connection of the pipe fitting 1. A positioning disc 6 is fixedly installed on one end of the connecting barrel 4. A flange disc 7 corresponding to the positioning disc 6 is fixedly installed on the outside of the pipe fitting 1.

[0035] Preferably, a screw pipe 8 is fixedly installed on the flange disc 7. A screw 13 is rotatably installed in the screw pipe 8 for threaded connection to the positioning disc 6, so that the connecting barrel 4 and the pipe fitting 1 are relatively positioned.

[0036] In the embodiment, a threading hole 12 is formed through the side of the screw pipe 8. A blocking ball 9 is attached to the outside of the screw pipe 8. A sealing ball 11 is extruded at one end of the screw pipe 8. The sealing ball 11 and the blocking ball 9 are connected by an elastic band 10. Through traction of the elastic band 10, the blocking ball 9 and the sealing ball 11 can both close the screw pipe 8, improving the sealing and corrosion prevention effect.

[0037] The working principle of the above embodiment is as follows:

[0038] The device is installed on a water pipe. The screw pipe 5 at both ends of the pipe fitting 1 is adapted to a common water pipe. A user only needs to tighten the interface. The positioning disc 6 and the flange disc 7 are threadedly connected to each other to complete positioning. The device can be placed at any position of a water pipe, such as a water inlet pipe. After installation, the device is automatically started without additional settings. Water quality collection and data transmission are performed at a fixed time every day. A user can receive daily water quality data through a mobile phone APP or a remote server. The user can view 2 to 3 pieces of daily water quality monitoring data through a mobile phone or a computer. The data includes a TDS value. If the water quality is abnormal, the data is marked as abnormal, reminding the user to take corresponding measures. When the device power is insufficient, the user can receive a prompt through an indicator light on the device or a mobile phone APP. The device rear shell is opened, a CR2450 button cell is replaced, and the device can continue to be used.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0040] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A wireless transmission device for online monitoring of domestic water quality, comprising a pipe (1), a module (2) fixedly installed on the inner wall of the pipe (1), and a TDS probe (3) located outside the module (2), characterized in that: One end of the pipe (1) is rotatably installed with a connecting cylinder (4), and the end of the connecting cylinder (4) is fixedly installed with a threaded pipe (5).

2. The wireless transmission device for online monitoring of domestic water quality according to claim 1, characterized in that: The module (2) is specifically a TDS sensor module, a wireless transmission module, an MCU control module and a power module.

3. The wireless transmission device for online monitoring of domestic water quality according to claim 1, characterized in that: A threaded pipe (8) is fixedly installed on the flange (7), and a screw (13) is rotatably installed in the threaded pipe (8) for threaded connection with the positioning disc (6).

4. The wireless transmission device for online monitoring of domestic water quality according to claim 3, characterized in that: A threading hole (12) is formed through the side of the threaded pipe (8), and a blocking ball (9) is attached to the outside of the threaded pipe (8) at the threading hole (12).

5. The wireless transmission device for online monitoring of domestic water quality according to claim 4, characterized in that: One end of the threaded pipe (8) is extruded with a sealing ball (11), and the sealing ball (11) and the blocking ball (9) are connected with an elastic band (10).

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