TWI769902B - Cloud-based wastewater water quality monitoring and automatic dosing system - Google Patents

Abstract

A cloud-based wastewater quality monitoring and automatic dosing system, comprising: a main body, a control box and a pump, wherein the main body has a bracket for providing the control box for installation, and the bracket is provided with a bracket. There are two liquid medicine barrels, a neutralization tank is arranged below, and an acid-base controller is installed on the control box. The acid-base controller can be connected with a cloud database through the control terminal main control board through the network, and the control box is also provided with a sensing terminal main control board, a sensing circuit board and a connected pH sensor.

Description

Cloud waste water quality monitoring and automatic dosing system

The present invention relates to a "cloud wastewater water quality monitoring and automatic dosing system", especially a set of intelligent wastewater management, automatic monitoring and dosing systems established in the Internet of Things by WiFi wireless communication.

The management of factory wastewater has become a critical issue today. Water quality monitoring refers to the regular or irregular detection of chemical substances, suspended solids, and ecosystems in water, monitoring and measuring the types, concentrations and changing trends of pollutants in water bodies, and evaluating water quality. The main monitoring items can be divided into two categories: the first is comprehensive indicators reflecting water quality conditions, such as temperature, chromaticity, turbidity, pH value, electrical conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biological oxygen demand, etc.; Followed by some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides. The pH value is also a very important component in many control factors in the wastewater treatment process, such as: the oxidation reaction of cyanide, the reduction reaction of hexavalent chromium metal ions and the neutralization treatment, etc., the pH value must be controlled within a certain range. Inside. Unstable pH control will result in overdosing (increased dosing costs) or underdosing (resulting in non-compliance with environmental regulations).

The traditional pH value control method mostly relies on a single acid-base controller with pH sensing electrodes to detect the pH value of the water body, and then controls the dosing machine to adjust the pH value. This method has the following disadvantages: (1) The accuracy of pH value depends on the accurate cooperation between the pH sensing electrode and the acid-base controller. A special coaxial cable must be used between the electrode and the acid-base controller, which is often due to the aging or damage of the cable itself. while the impact is positive (2) The special coaxial cable between the pH sensing electrode and the acid-base controller is often close to the cable with a large current passing through, and the magnetic field generated by the cable with a large current passing through will interfere with the pH sensing. (3) The pH sensing electrode and the acid-base controller must be calibrated frequently on site, but due to the installation and arrangement of the equipment in the wastewater treatment plant, the pH sensing electrode and the acid-base controller are often troubled by time and space factors. For example, there are considerable distances or different floors, so that it is necessary to increase the manpower when the calibration work is performed.

In addition, due to the rapid development of wireless communication technology and the gradual maturity of the Internet of Things, smartphones and tablet computers can be used for remote monitoring through the network with different sensors. For example, in wastewater treatment, operators or managers can instantly know the pH value, temperature, conductivity, flow rate and other information of the discharged water. In the automatic tap water distribution system, it is also possible to determine whether to provide tap water to remote users normally based on the real-time access to the water quality in the pipeline, so as to ensure the quality of water supply and maintain the health of customers.

However, in the known real-time water quality monitoring system using the Internet of Things, most of its technical content only achieves the functions of monitoring water quality and notifying management personnel, and lacks the function of immediate control of water pollution. Once the water quality is abnormal, it can only rely on the receiver of the signal to go to the scene in person or notify the operator to eliminate the abnormality; this will often cause a certain degree of environmental pollution.

Since the monitoring and control of pH value is the main control factor of wastewater treatment, if we can use the Internet of Things and cloud database methods to develop a system for monitoring pH value in the cloud and adjusting the pH value automatically by adding medicine, it is a The problem that the inventors want to improve is.

Therefore, the inventor of the present invention has considered the idea of creation in view of this, and has designed it with years of experience. After many discussions and sample tests, and many revisions and improvements, the present invention is launched.

The cloud wastewater quality monitoring and automatic dosing system of the present invention includes: a main body, a control box and a pump, wherein the main body has a bracket for providing the control box for installation, the bracket There are two liquid medicine barrels on the top, and a neutralization tank on the bottom, and each of the two liquid medicine barrels is connected with an infusion tube. Dosing can be done above the neutralization tank, and a mixer is installed on the neutralization tank, and an acid-base controller is installed on the control box. The acid-base controller uses a precision amplifier circuit module. A control terminal main control board is connected, so that the acid-base controller can be connected with a cloud database through the control terminal main control board through the network, and the control box is also provided with a connected sensing terminal The main control board, a sensing circuit board and a pH sensor, the pH sensor is vertically placed in the neutralization tank, so as to use the pH sensor to measure the hydrogen ion concentration in the tank liquid, and The sensing circuit board is used to convert the micro-voltage measured by the pH sensor into a signal that the sensing terminal main control board can receive, and convert it into a pH value, and then pass through the sensing terminal. The main control board is uploaded to the cloud database through the network, so that the cloud database can store the pH of individual sampling time points, and then according to the sensing data, the cloud database returns the measured data to the cloud database through the network. The control end main control board, when the control end main control board receives the signal, it can use the precision amplifying circuit module to convert the data into a voltage value and then transmit it to the acid-base controller, so that the The acid-base controller can judge whether automatic dosing is required according to the upper and lower limits of the pH value set in advance, so as to perform the function of automatic pH adjustment by this program. waste water, so that the waste water is pumped into the neutralization tank for detection through the pumping pump; thereby, the cloud waste water can be formed Quality monitoring and automatic dosing systems.

(1) The cloud-based wastewater quality monitoring and automatic dosing system of the present invention, in order to solve the problem of pH adjustment of wastewater in the industry, the present invention is designed to transmit the data of the pH sensor to the The acid-base controller replaces the existing wire to connect the pH sensor and the acid-base controller. This design helps to improve the problem of instability and easy interference caused by the use of wires, and also reduces the pH sensitivity. manpower and time when calibrating the detector and the acid-base controller.

(2) The cloud-based wastewater quality monitoring and automatic dosing system of the present invention is an important task for researchers and wastewater operators to preserve and trace operational data, and traditional acid-base neutralization equipment lacks a set of data The database stores operational data, so that the relevant data can be found quickly and correctly when needed. Currently, people use an additional set of recorders, using paper or memory cards to store data. The more advanced one is to add a set of synchronous cloud water quality monitoring equipment. , the data is transmitted to the cloud database through 4GLTE communication for retrospective use. On the other hand, the present invention is designed to transmit the data of the pH sensor to the acid-base controller by using Wifi wireless communication. Synchronously store data in a MySQL database in the cloud, allowing researchers, wastewater operators or managers to browse real-time water quality data through the Internet at any time.

(3) With the cloud-based wastewater quality monitoring and automatic dosing system of the present invention, wastewater equipment operators and enterprise managers can use the established database to obtain correct operation management information, such as assisting in internal process improvement or controller setting values Adjustment, etc., will increase the efficiency of water quality management, reduce the environmental protection cost of the enterprise and reduce the environmental risk. The researchers can use this information to further understand the change of the pH value of the wastewater of the enterprise, and then improve its wastewater equipment, which can be used as a new design Reference for the plan.

(4) In the cloud-based wastewater quality monitoring and automatic dosing system of the present invention, the wireless control dosing function can perform timely dosing and adjustment operations for changes in water quality (pH value) to keep the water quality within the allowable range.

Part of the present invention:

(10): Ontology

(11): Bracket

(12): Liquid barrel

(121): Infusion tube

(122): Dosing solenoid valve

(13): Neutralization tank

(14): Blender

(20): Control Box

(21): acid-base controller

(22): Precision amplifier circuit module

(23): Control side main control board

(24): Sensing side main control board

(25): Sensing circuit board

(26): pH sensor

(30): water pump

(40):Cloud Database

(50): Wastewater

[Fig. 1] is a perspective view of the present invention.

[Fig. 2] is a state diagram of the present invention connecting with the cloud database through the network.

[Fig. 3] is a block flow diagram of the automatic dosing of the present invention.

[Figure 4] is a three-dimensional state diagram of the acid of the present invention when it is added.

[Fig. 5] is a three-dimensional state diagram of the present invention when the alkali is added.

In order to enable your examiners to have a further understanding and understanding of the purpose, features and effects of the present invention, please describe in detail as follows in conjunction with [Brief Description of Drawings]:

Generally, according to the present invention, please first view it as shown in FIG. 1 and FIG. 2, which includes: a main body (10), a control box (20) and a pump (30), wherein the main body (10) ) has a bracket (11) for providing the control box (20) for installation, the bracket (11) is provided with two liquid medicine barrels (12), and a neutralization tank (13) is arranged below, and the two Each of the liquid medicine buckets (12) is connected with an infusion tube (121). Dosing is performed above the neutralization tank (13), a mixer (14) is arranged on the neutralization tank (13), and an acid-base controller (21) is arranged on the control box (20), which The acid-base controller (21) uses a precision amplifier The circuit module (22) is connected to a control end main control board (23), so that the acid-base controller (21) can communicate with a cloud database (40) through the control end main control board (23) via the network connected, and the control box (20) is also provided with a sensing terminal main control board (24), a sensing circuit board (25) and a pH sensor (26) connected to the pH sensor. The device (26) is vertically placed in the neutralization tank (13), so that the pH sensor (26) is used to measure the hydrogen ion concentration (pH value) in the tank liquid, and the sensing circuit board ( 25) is used to convert the micro-voltage measured by the pH sensor (26) into a signal that the main control board (24) of the sensing end can receive, and convert it into a pH value, and then pass through the sensor. The main control board (24) of the measuring end is uploaded to the cloud database (40) through the network, so that the cloud database (40) can store the pH value (pH value) of each sampling time point, and then according to the sensing data The cloud database (40) sends the measured data back to the control-side main control board (23) via the network, and the control-side main control board (23) can utilize the precision amplification after receiving the signal The circuit module (22) converts the data into a voltage value and then transmits it to the acid-base controller (21), so that the acid-base controller (21) can increase, The lower limit is used to determine whether automatic dosing is required, so as to use the program to perform the function of automatic adjustment of pH. The suction pump (30) is pumped into the neutralization tank (13) for detection.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the second infusion pipe (121) is provided with a dosing solenoid valve (122) controlled by the acid-base controller (21), and the The acid-base controller (21) controls the dosing solenoid valve (122) to open or close, so that the automatic dosing operation can be successfully completed.

The present invention provides a cloud-based wastewater water quality monitoring and automatic dosing system, wherein the two liquid medicine tanks (12) are respectively equipped with an acid solution and an alkali solution, so that the addition of the acid solution or the alkali solution can be used for all purposes. The acid-base neutralizer of the water quality of the wastewater (50).

The invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the acid-base controller (21) is a SUNTEX PC-310 acid-base controller, and the SUNTEX PC-310 acid-base controller can set the pH value as required Upper and lower limits, when the pH value exceeds the upper limit, the internal relay will be turned on, and the acid dosing solenoid valve (122) can be activated at this time. When the pH value is lower than the lower limit, another group of internal relays will be turned on. The lye dosing solenoid valve (122) can be activated, so that the acid-base adjustment operation of the water quality can be performed by the interaction between the acid-base controller (21) and the dosing solenoid valve (122), which can reach the level of waste water. Acid-base neutralizing function.

The invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the control end main control board (23) and the sensing end main control board (24) are a NodeMCU development board (ESP8266 WiFi module), the NodeMCU The development board is based on the ESP8266 (ESP12) WiFi SoC chip, and integrates WiFi, GPIO, PWM, ADC, I2C, 1-Wire and other functions. In other languages, the kernel is very small and has high execution efficiency. It has built-in WiFi function, which is very suitable for IoT application development. The code can be written into ESP8266 with Arduino IDE. Users can choose which method to use according to their needs. development.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the pH sensor (26) is a pH composite electrode sensor.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the sensing circuit board (25) is a pH sensing circuit board module supporting ARDUINO, which is used to connect the pH sensor (26) ) The measured micro-voltage is converted into a signal that can be received by the Arduino development board NodeMCU and converted into pH value.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein a cable is used as a connector between the precision amplifying circuit module (22) and the acid-base controller (21).

The invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the pH sensor (26), the sensing circuit board (25) and the sensing end main control board (24) are all connected by cables (cable) be a connector.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the wastewater (50) is directly pumped into the neutralization tank (13) through the water pump (30).

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the wastewater (50) is first drained to a water pumping tank, and then the wastewater (50) is drained from the pumping tank through the water pump (30). The water tank is drawn into the neutralization tank (13).

Continuing to see from Figure 3, in actual operation, the waste water end captures the real-time water quality status from the neutralization tank (13) through the pH sensor (26), and then passes through the pH sensor (26). The main control board (24) of the sensing end uploads the data to the cloud database (40) via the network (Wifi), and the cloud database (40) stores the pH value (pH value) of each sampling time point, and then, According to the sensing data, the cloud database (40) transmits data to the control end main control board (23), and the control end main control board (23) uses the precision amplifier circuit module after receiving the signal. (22) Convert the data into a voltage value and transmit it to the acid-base controller (21), so that the acid-base controller (21) can control the dosing solenoid valve (122) according to the upper and lower limits previously set Turn on or off the action, and perform the automatic dosing operation for pH adjustment according to this procedure (please see Figure 4 and Figure 5 at the same time). After the mixer (14) stirs and dissolves sufficiently, it will be exiled from the neutralization tank (13) to the monitored field, so as to be mixed with the waste water of the monitoring field, so as to effectively adjust the monitoring field Wastewater quality in the area.

The above-mentioned cloud-based wastewater quality monitoring and automatic dosing system has the following advantages: (1) In order to solve the problem of pH adjustment of wastewater in the industry, the present invention is designed to use Wifi The data of the pH sensor (26) is transmitted to the acid-base controller (21) by means of wireless communication, replacing the existing wires to connect the pH sensor (26) and the acid-base controller (21) , this design helps to improve the problem of instability and easy interference caused by the use of wires, and also reduces the manpower and time when the pH sensor (26) and the acid-base controller (21) are calibrated; (2) ) For researchers and wastewater operators, the preservation and traceability of operational data is an important task. Traditional acid-base neutralization equipment lacks a database to store operational data, so that relevant data can be found quickly and correctly when needed At present, people use an additional set of recorders to store data on paper or memory cards. The more advanced one is to add a set of synchronous cloud water quality monitoring equipment, which transmits data to the cloud database through 4GLTE communication for traceability. Using, on the other hand, the present invention is designed to store the data in the cloud MySQL synchronously when the data of the pH sensor (26) is transmitted to the acid-base controller (21) by using the wireless communication method of Wifi. The database allows researchers, wastewater operators or managers to browse real-time water quality data through the Internet at any time; (3) Wastewater equipment operators and enterprise managers can use the established database to obtain correct operation management. Information, such as assisting internal process improvement or controller setting value adjustment, etc., will increase the efficiency of water quality management, reduce the environmental protection cost of the enterprise and reduce the environmental risk. Researchers can use this information to further understand the pH value change of the wastewater of the enterprise. , which can improve its wastewater equipment, and can be used as a reference for new design schemes; (4) The wireless control dosing function can perform timely dosing and adjustment operations for changes in water quality (pH value) to keep the water quality within the allowable range. Inside.

Only the above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention; that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention should still belong to this creation. covered by the patent.

(10): Ontology

(11): Bracket

(12): Liquid barrel

(121): Infusion tube

(122): Dosing solenoid valve

(13): Neutralization tank

(14): Blender

(20): Control Box

(21): acid-base controller

(22): Precision amplifier circuit module

(23): Control side main control board

(24): Sensing side main control board

(25): Sensing circuit board

(26): pH sensor

(30): water pump

(50): Wastewater

Claims (9)

A cloud-based wastewater quality monitoring and automatic dosing system, comprising: a body, a control box and a water pump, wherein: The main body has a bracket for providing the control box for installation. Two liquid medicine barrels are arranged on the bracket, and a neutralization tank is arranged below, and each of the two liquid medicine barrels is connected with an infusion tube, which passes through the bracket. Elevating the medicinal liquid barrel, and with the extension of the two infusion pipes, the medicine can be added above the neutralization tank, and a mixer is attached to the neutralization tank; An acid-base controller is installed on the control box, and the acid-base controller uses a precision amplifier circuit module to connect to a control-end main control board, so that the acid-base controller can pass through the control-end main control board. The network is connected with a cloud database, and the control box is also provided with a main control board of a sensing end, a sensing circuit board and a pH sensor which are connected to each other, and the pH sensor is placed vertically into the neutralization tank, in order to use the pH sensor to measure the hydrogen ion concentration in the tank liquid, and the sensing circuit board is used to convert the micro-voltage measured by the pH sensor into the desired value. The signal that can be received by the main control board of the sensing end is converted into pH value, and then uploaded to the cloud database through the main control board of the sensing end through the network, so that the cloud database can store the individual sampling time Then, according to the sensing data, the cloud database sends the measured data back to the control-side main control board through the network. When the control-side main control board receives the signal, it can use the The precision amplifying circuit module converts the data into a voltage value and then transmits it to the acid-base controller, so that the acid-base controller can judge whether it needs to be automatically added according to the upper and lower limits of the pH value set in advance. medicine, so that the pH is automatically adjusted by this program. Function; The water pump is used to collect waste water in the monitoring field, so that the waste water can be pumped into the neutralization tank through the water pump for detection. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein the two infusion pipes are provided with a dosing solenoid valve controlled by the acid-base controller, which is controlled by the acid-base controller. When the dosing solenoid valve is opened or closed, the automatic dosing operation can be successfully completed. The cloud-based wastewater water quality monitoring and automatic dosing system according to claim 1, wherein acid solution and alkali solution are respectively installed in the two drug solution buckets, so that the addition of the acid solution or the alkali solution can be used to do the work. It refers to the acid-base neutralizer of wastewater quality. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein the acid-base controller is a SUNTEX PC-310 acid-base controller. The cloud-based wastewater water quality monitoring and automatic dosing system according to claim 1, wherein the control-side main control board and the sensing-side main control board are a NodeMCU development board. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein the pH sensor is a pH composite electrode sensor. The cloud-based wastewater water quality monitoring and automatic dosing system according to claim 1, wherein the sensing circuit board is a pH sensing circuit board module supporting ARDUINO. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein a cable is used as a connector between the precision amplifier circuit module and the acid-base controller. The cloud-based wastewater water quality monitoring and automatic dosing system according to claim 1, wherein the pH sensor, the sensing circuit board and the sensing end main control board are all connected by cables.

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