WO2022141082A1

WO2022141082A1 - System for monitoring, recording and reporting water quality

Info

Publication number: WO2022141082A1
Application number: PCT/CN2020/140979
Authority: WO
Inventors: 陈福地
Original assignee: 陈福地
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-07-07

Abstract

A system for monitoring, recording and reporting water quality. The system mainly comprises a monitoring side apparatus (100), a cloud side central control apparatus (200), a user side apparatus (300) and a maintenance side apparatus (400), wherein the monitoring side apparatus (100) monitors, according to a set time, water quality information of the total dissolved solids and the temperature of a target water source, carries out determination on the water quality information, then encrypts same, and sends same to the cloud side central control apparatus (200); and the cloud side central control apparatus (200) decrypts and stores the water quality information, and then determines whether to send a maintenance notification and the water quality information to the user side apparatus (300) and the maintenance side apparatus (400). By means of the system, a water quality state is monitored at regular times or in real time, water quality information is stored in a cloud side (200), and Internet of Things transmission is performed by means of an LPWAN, a GSM network or an LTE Cat1 network, such that the transmission and standby power of the whole system is effectively reduced. In addition, when water quality is abnormal, a user side (300) and a maintenance side (400) are notified, such that same can dispatch workers for maintenance in a timely manner.

Description

Water quality detection, recording and reporting system

technical field

This application relates to the technical field of water quality detection, and in particular, to a system that uses the Internet of Things technology and integrates the monitoring, cloud, consumer and maintenance terminals for water quality detection, recording and reporting.

Background technique

The current household, commercial or industrial filtration devices (such as reverse osmosis, forward osmosis, water dispensers, water purifiers, etc.) are often only equipped with a light signal for regular replacement of filter consumables, but do not monitor the filtered water quality. , if the light display is ignored or damaged, it cannot guarantee whether the filtered water quality meets the requirements. In addition, in the existing water quality monitoring system, information is transmitted between various devices through 4G, WiFi, Bluetooth or wired network. This transmission type of network consumes the transmission and standby power of the device, and adds a lot of construction. cost. Therefore, a low-energy cloud water quality monitoring system that can monitor, record water quality and report in real time is the goal of all parties.

It can be seen that the above-mentioned prior art still has many deficiencies, which is not a good design and needs to be improved urgently.

SUMMARY OF THE INVENTION

The present application is a system for detecting, recording and reporting water quality, which mainly includes a monitoring terminal device, a cloud central control device, a user terminal device and a maintenance terminal device. The monitoring end device monitors the water quality information of the target water source including total dissolved solids (TDS) and temperature at the first set time, and after judging whether the water quality is abnormal, the water quality information is set in the second setting. The time is encrypted and sent to the cloud central control device. The cloud central control device decrypts and stores the water quality information, and determines whether to send maintenance notices and water quality information to the client device and the maintenance end device.

Wherein, the monitoring terminal device further includes a total dissolved solids monitoring unit, a temperature monitoring unit, a numerical value judging unit, an encryption unit and a wireless communication unit. The total dissolved solids monitoring unit monitors the total dissolved solids of the target water source at the first set time, the temperature monitoring unit monitors the temperature of the target water source at the first set time, and the numerical judging unit judges whether the water quality information is abnormal, The encryption unit encrypts the water quality information, and the wireless communication unit sends the encrypted water quality information to the cloud central control device at the second set time.

The first set time is 30 minutes, and the second set time is 6 hours.

Among them, when the total amount of dissolved solids exceeds the set range, the numerical value judgment unit judges that it is abnormal, and immediately encrypts the water quality information and sends it to the cloud central control device.

The cloud central control device further includes a decryption unit, a storage unit, an operation and determination unit, and a state notification unit. The decryption unit decrypts the encrypted water quality information, the storage unit stores the water quality information, the operation and determination unit judges whether the water quality information is abnormal, and the status notification unit sends the maintenance notice and water quality information to the user-end device and the maintenance-end device.

Among them, the maintenance notification includes the abnormal water quality notification and the battery power of each device.

Wherein, when the total amount of dissolved solids exceeds the set range, the calculation and determination unit determines that it is abnormal, and immediately sends the maintenance notice and water quality information to the user-end device and the maintenance-end device.

The client device is one of a desktop computer, a notebook computer, a tablet device, and a mobile phone.

Among them, the water quality information is transmitted through Low Power Wide Area Network (LPWAN), GSM network or LTE Cat1 network.

The water quality detection, recording and reporting system of this application is to monitor the water quality at the outlet and inlet of the filtration device regularly and in real time, store the water quality information in the cloud, and transmit the Internet of Things through LPWAN, effectively reducing the overall system cost. Transmit and Standby Power. In addition, when the water quality is abnormal, the user and the maintenance terminal are notified, so that they can be contacted in real time and dispatched for maintenance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related technologies, the following briefly introduces the accompanying drawings used in the description of the embodiments or related technologies. Obviously, the drawings in the following description are the For the disclosed embodiments, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of the structure of the water quality detection, recording and reporting system of the application;

FIG. 2 is another schematic diagram of the structure of the water quality detection, recording and reporting system of the application;

FIG. 3 is another schematic diagram of the structure of the water quality detection, recording and reporting system of the application;

Figure 4 is a schematic diagram of the installation location of the water quality detection, recording and reporting system of the application;

FIG. 5 is a schematic circuit diagram of the monitoring terminal device of the water quality detection, recording and reporting system of the application;

FIG. 6 is a flow chart of the water quality detection, recording and reporting system of the application.

Reference numerals: 100-monitoring terminal device; 110-dissolved solid total monitoring unit; 120-temperature monitoring unit; 130-value judgment unit; 140-encryption unit; 150-wireless communication unit; 160-signal conversion unit; 170 -SIM card; 180-potential conversion unit; 200-cloud central control device; 210-decryption unit; 220-storage unit; 230-operation and determination unit; 240-state notification unit; 300-client device; 400-maintenance terminal device.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present application, and are not intended to limit the present application.

In the description of this application, it is to be understood that the terms "center", "lateral", "top", "bottom", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, so as to simplify the description. The specific orientation configuration and operation are therefore not to be construed as limitations of the present application.

Please refer to FIG. 1 , which is a schematic diagram of the structure of the water quality detection, recording and reporting system of the present application, which mainly includes a monitoring end device 100 , a cloud central control device 200 , a client device 300 and a maintenance end device 400 . The monitoring end device 100 is set At the outlet or inlet of the household or industrial filter device to monitor the water quality at the outlet or inlet of the filter device, the monitoring device 100 mainly includes a total dissolved solids monitoring unit 110, a temperature monitoring unit 120, a numerical value The determination unit 130, the encryption unit 140 and the wireless communication unit 150, the total dissolved solids monitoring unit 110 and the temperature monitoring unit 120 respectively monitor the water quality information such as the total dissolved solids and the temperature of the target water source at the first set time. The first set time of the embodiment is 30 minutes, but the user can set it according to the needs. The value judgment unit 130 compensates and corrects according to the measured temperature, and judges whether the total dissolved solids are abnormal. After the unit 140 encrypts the water quality information, it is sent to the cloud central control device 200 through the wireless communication unit 150 at a second set time interval, wherein the second set time in this embodiment is 6 hours. The cloud central control device 200 mainly includes a decryption unit 210, a storage unit 220, an operation and determination unit 230, and a status notification unit 240. After the cloud central control device 200 receives the encrypted water quality information, it is decrypted by the decryption unit 210 and stored in the The storage unit 220 and the operation and determination unit 230 determine whether the water quality information is abnormal. If the water quality information is normal, the status notification unit 240 sends the water quality information to the client device 300 and the maintenance device 400 regularly. Wherein, the user terminal device 300 and the maintenance terminal device 400 in this embodiment are one of a desktop computer, a notebook computer, a tablet device, and a mobile phone, but the actual application is not limited thereto. Any device that can receive, read, and display the water quality in this application Information devices, modules or devices with browsers are all within the scope of protection of this application. In addition, the water quality information in this embodiment is transmitted through wireless communication technologies such as low power wide area network transmission, GSM network or LTE Cat1 network.

Please refer to FIG. 2 and FIG. 3 , which are schematic diagrams of the structure of a retail household, a community or a building, respectively, wherein the monitoring terminal device 100 further includes a signal conversion unit 160, which can convert the water quality information between the analog signal and the digital signal according to the requirements. Alternatively, the storage unit 220 can be a cloud storage unit, and all of them can additionally provide information management through wired connection of computer equipment. As shown in FIG. 2 , when the present application is used in a retail environment, the monitoring terminal device 100 is provided with a SIM card 170 according to actual needs. Transmitted by GSM network, LTE Cat1 network or LPWAN (NB-IoT/Sigfox) network. As shown in FIG. 3 , when the present application is used in a settlement environment where devices such as a cell or a building are concentrated, it also performs LPWAN wireless transmission (eg, LoRa) through a gateway and a communication module.

Please refer to FIG. 4 , which is a schematic diagram of the installation location of the water quality detection, recording, and reporting system of the present application. In this embodiment, the monitoring end device 100 is installed at the water outlet of the reverse osmosis mold tube.

Please refer to FIG. 5 , which is a schematic circuit diagram of the monitoring terminal device of the water quality detection, recording and reporting system of the present application, wherein the physical sensing layer includes the total dissolved solids monitoring unit 110 in the TDS sensor to generate electric potential through the principle of conductance The signal, the potential signal generated by the temperature monitoring unit 120, the battery voltage is divided to generate a low-voltage potential signal, and the signal conversion unit 160 converts the analog signal and the digital signal and uses 4 channels (ch) 24 bits (1/16777215) resolution. The MCU control adopts ARM series low-power controller, controls the interface and transmits and controls the wireless communication unit 150 with AT Command, reads the total dissolved solids monitoring unit 110 generates a potential signal through the principle of conductance, and the temperature monitoring unit 120 generates The potential signal, the battery voltage is divided to generate a low-voltage potential signal for temperature compensation and application, and is controlled by a 5V voltage source switch to effectively reduce battery consumption. The wireless communication uses the voltage conversion unit 180 to adjust the voltage signal and convert it into a signal with a higher or lower voltage. The wireless communication unit 150 uses a low-power wireless communication module (NB/LORA/SIGFOX) and uses a dedicated SIM card for the NB wireless communication module. A SIM card 170 is provided in the seat slot. Among them, the Open CPU is based on the communication module for secondary development, and the application development and design are directly carried out in the communication module, thereby saving the related hardware cost and institutional space in the external MCU.

Please refer to Figure 6, which is a flow chart of the water quality detection, recording and reporting system of the application. The water quality detection, recording and reporting process is as follows:

S601: The monitoring terminal device monitors water quality information such as the total dissolved solids and temperature of the target water source every 30 minutes;

S602: Compensate and correct according to the measured temperature, and judge whether the total dissolved solids are abnormal. If the total dissolved solids is greater than 10ppm of the set value, it is judged to be abnormal, and the water quality information is encrypted immediately and sent to If the cloud central control device is judged to be normal, the water quality information will be encrypted every 6 hours and sent to the cloud central control device;

S603: After receiving the encrypted water quality information, the cloud central control device decrypts and stores it;

S604: Determine whether the water quality information is abnormal. If it is determined to be normal, the status notification unit periodically sends the water quality information to the user terminal device and the maintenance terminal device according to the set time. If it is determined to be abnormal, it immediately sends the maintenance notification and water quality information to the user. end device and maintenance end device.

After receiving the maintenance notice and water quality information, the user-end device and the maintenance-end device will communicate with each other and dispatch maintenance according to the actual situation.

Wherein, the present embodiment is based on the World Health Organization (WHO) standard, the total amount of dissolved solids in the water is 500ppm and meets the drinking standard, so this embodiment is set when the total amount of dissolved solids in the water exceeds 10ppm of the 500ppm standard , if it is judged to be abnormal. In addition, the standard value of the total dissolved solids in this application can be set according to the actual situation.

The above are only preferred embodiments of the present application, and are not intended to limit the scope of implementation of the present application; if the application is modified or equivalently replaced without departing from the spirit and scope of the present application, it should be covered within the protection scope of the patent scope of the present application. among.

Claims

A system for detecting, recording and reporting water quality, characterized in that it includes:

A monitoring end device, the monitoring end device monitors the water quality information of the target water source at the first set time, and encrypts the water quality information at the second set time and sends it out, wherein the water quality information includes the dissolution of the target water source Total amount of solids and temperature;

a cloud central control device, the cloud central control device receives the encrypted water quality information sent by the monitoring terminal device, stores the water quality information, and determines whether to send a maintenance notice and the water quality information;

a client device, the client device receives the maintenance notice and the water quality information sent by the cloud central control device;

A maintenance end device, wherein the maintenance end device receives the maintenance notice and the water quality information sent by the cloud central control device.
The system for detecting, recording and reporting water quality according to claim 1, wherein the monitoring terminal device further comprises:

a total dissolved solids monitoring unit, the total dissolved solids monitoring unit monitors the total dissolved solids of the target water source at the first set time;

a temperature monitoring unit, the temperature monitoring unit monitors the temperature of the target water source at the first set time;

a numerical value judgment unit, which judges whether the water quality information is abnormal;

an encryption unit, the encryption unit encrypts the water quality information;

A wireless communication unit, the wireless communication unit sends the encrypted water quality information to the cloud central control device at the second set time.
The system for detecting, recording and reporting water quality according to claim 2, wherein when the total amount of dissolved solids exceeds the set range, the numerical value judging unit judges that it is abnormal, and immediately records the total amount of dissolved solids. The water quality information is encrypted and sent to the cloud central control device.
The system for detecting, recording, and reporting water quality as claimed in claim 2, wherein the first set time is 30 minutes, and the second set time is 6 hours.
The system for detecting, recording and reporting water quality according to claim 1, wherein the cloud central control device further comprises:

a decryption unit, which decrypts the encrypted water quality information;

a storage unit, the storage unit stores the water quality information;

an operation and determination unit, the operation and determination unit determines whether the water quality information is abnormal;

a state notification unit, the state notification unit sends the maintenance notification and the water quality information to the client device and the maintenance device.
The system for detecting, recording, and reporting water quality as claimed in claim 5, wherein when the total amount of dissolved solids exceeds the set range, the calculation and determination unit determines that it is abnormal, and immediately changes the The maintenance notification and the water quality information are sent to the client device and the maintenance device.
The system for detecting, recording and reporting water quality according to claim 1, wherein the client device and the maintenance device are one of a desktop computer, a notebook computer, a tablet device or a mobile phone.
The system for detecting, recording and reporting water quality according to claim 1, wherein the client device and the maintenance device are devices with browsers.
The system for detecting, recording and reporting water quality as claimed in claim 1, wherein the water quality information is transmitted through a low power wide area network (LPWAN).
The system for detecting, recording and reporting water quality according to claim 1, wherein the water quality information is transmitted through a GSM network or a LET Cat1 network.