CN208270472U - Regional water quality Internet of Things on-line monitoring system - Google Patents

Abstract

The utility model proposes regional water quality Internet of Things on-line monitoring systems, including multiple SM2130B-EC type electric conductivity sensors, PLC, regulated power supply, multiplex roles RS485 communication module, man-machine interface, the communication interface of multiplex roles RS485 communication module and PLC connection, multiple SM2130B-EC type electric conductivity sensors respectively with multiplex roles RS485 communication module communication connection；PLC is connect with man-machine interface；Acquisition rate, data baud rate are set in PLC；Design initial picture and data threshold limit value in man-machine interface；Above-mentioned conductivity sensor is mounted on the entrance of a Regional Admin road and each lateral.Water quality data is presented to user in a manner of visual by the utility model, realizes the purpose of regional monitoring water quality on line；By the data difference of each conductivity sensor, pollution source position can be quickly positioned, reduces and blindly overhauls；Object-oriented is town region management, property and township mining management, and the monitoring of water quality core index is realized with most economical reliable means.

Description

Regional water quality Internet of Things on-line monitoring system

Technical field

The utility model belongs to water quality monitoring technical field, more particularly to regional water quality Internet of Things on-line monitoring system.

Background technique

The continuous improvement of China resident's culture and living standard, industry manufacture gradually get rid of imitation, make into Chinese intelligence 4.0 developing stage.On the one hand the enhancing of human productivity needs the higher life resources of production of precision, on the other hand, cities and towns The development of quickening and regional economy with large scale industry garden pace of construction, has aggravated the load of local water resource, has also resulted in city City's underground water pollution aggravates.There is the problems such as Water Eutrophication, ferrimanganic is exceeded in the river,lake and reservior of numerous industrial cities, and water is dirty Dye problem has become one of the important restriction factor of China's socio-economic development.

Due to the formulation and people's lives region, habit, culture, economic condition, science of Drinking Water water standard The many factors such as state-of-art, water resource and its water quality situation are related, not only between various countries, but also the difference of same country Between area, to the requirement of drinking water quality all there is difference between the different crowd of areal, therefore country is only issued Unified water standard section, regional water-quality test result are applicable only to the region.

One water quality detection laboratory of small-sized tap water factory, about 100 ㎡ of area, conventional detection instrument have: liquid phase color Spectrometer, gas chromatograph, atomic absorption photometer, ultraviolet-uisible spectrophotometer, atomic fluorescence spectrophotometer, Hyperfrequency waves eliminating stove, PH meter, electronic balance, electric drying oven with forced convection, box high temperature resistance furnace, conductivity meter, transmissometer, chromascope, whiteness instrument, The instrument and equipments such as constant incubator, high-pressure steam sterilizing pan, Photobiology microscope, water-bath, various chemical reagent are commonly used Glassware etc..The current water quality detection mechanism movable type experiment centre in China configures equipment, and such as portable chlorine residue, chlorine dioxide are quick Analyzer, portable transmissometer, portable determination of colority instrument, pH meter, conductivity meter etc..These equipment volumes are small and exquisite, but function It is single, can only hand sample, manual test, as a result application be only limitted to manual identified, printing, statistics.

Have environment state control net profession on-line monitoring station wide-area data system, it can rapid collection remote field large size rivers Lake and reservoir water quality data, but also with portable single machine, intelligent modularized ambient water quality highly integrated, easy to operate monitors detection on-line Instrument, is the direction of the following big data system demand, and market potential is huge.

At present the problems such as city or the pollution of the rural network of rivers are nowhere looked for one's roots, river,lake and reservior monitoring is difficult, do not have also in the market Occur the water quality Internet of Things on-line monitoring system around a cell or a region.

TDS is the English acronym of total dissolved solid substance TotalDissolvedSolids, is referred in water The concentration of total dissolved matter, unit mg/litre (mg/L), what is mainly reflected is Ca2+ MG2+ Na+ K+ plasma in water Concentration, have preferable corresponding relationship with the hardness and conductivity of water, TDS value is smaller, Ca2+ MG2+ Na+ K+ etc. in water The concentration of ion is lower, and conductivity is smaller.

The size of TDS value can not reflect the size of harmful heavy metal ions concentration in water comprehensively, have how much bacterium has in water Machine object concentration level nitrous acid concentration it is whether exceeded either with or without pesticide residue these all can not by the size of TDS value come Reaction.Even the bacterium in water is exceeded, concentration of heavy metal ion is exceeded, as long as the Ca2+ MG2+ Na+ K+ dissolved in water Plasma concentration reduces, and TDS value can also become smaller.Many times, during checking water purifier quality, TDS value is often come For verifying the effect of water purifier purification.

SM2130B-EC type electric conductivity sensor is the production of Shanghai Sou Bo Industrial Co., Ltd., model SM2130B- EC, product name are RS485 conductivity sensor;It is a commercial power conductance measuring instrument, it can continuously be surveyed for a long time The water quality (conductivity value) of amount and monitoring water and conventional liq, the external high-precision EC electrode of product, using RS485 interface, mark For MODBUS-RTU agreement, it can be achieved that multiple spot monitors simultaneously, networking and teletransmission have easy to use, accuracy of reading, numerical stability etc. Feature;Support secondary development, only any serial communication software-implemented module need to can be used according to our communications protocol in user The inquiry and setting of data.

Summary of the invention

On-line monitoring water quality is realized in a region in order to realize, quickly positions the position of pollution sources, the utility model Corresponding relationship based on total dissolved solid substance and conductivity proposes regional water quality Internet of Things on-line monitoring system.

To achieve the goal, the utility model adopts the following technical solution: regional water quality Internet of Things on-line monitoring system, Be characterized in that: including multiple SM2130B-EC type electric conductivity sensors, PLC, regulated power supply, multiplex roles RS485 communication module, The communication interface of man-machine interface, multiplex roles RS485 communication module and PLC connect, multiple SM2130B-EC type electric conductivity sensors Respectively with multiplex roles RS485 communication module communication connection；PLC is connect with man-machine interface；Regulated power supply is that PLC, RS485 communicate mould Block, man-machine interface power supply；

Acquisition rate, data baud rate are set in PLC；Design initial picture and data threshold limit value in man-machine interface；

Multiple SM2130B-EC type electric conductivity sensors are mounted on the entrance of a Regional Admin road and each lateral.

The utility model has the beneficial effects that the utility model passes through selection SM2130B-EC type electric conductivity sensor, SM2130B-EC type electric conductivity sensor and PLC wireless telecommunications, in the combination by man-machine interface, by water in a manner of visual Prime number realizes the purpose of regional monitoring water quality on line according to user is presented to；By the data difference of each conductivity sensor, Pollution source position can be quickly positioned, reduces and blindly overhauls；Object-oriented is town region management, property and township mining management, The monitoring of water quality core index is realized with most economical reliable means, such system equally can be in factory, water reservoir management, school Etc. mechanisms promoted.The utility model has the advantage that gets twice the result with half the effort, i.e., multi-platform multiplex roles, real-time data transmission are in real time more Newly, information truth reliability and stability is strong, product price is far below scientific research apparatus；Compared with the common water quality monitoring platform in market, Cost is lower.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

In the following, in conjunction with attached drawing, the present invention will be further described.

Regional water quality Internet of Things on-line monitoring system as shown in Figure 1, including multiple (SM2130B-EC type) conductivity Sensor, PLC, regulated power supply, multiplex roles RS485 communication module, man-machine interface, multiplex roles RS485 communication module and PLC's is logical Communication interface connection, multiple SM2130B-EC type electric conductivity sensors respectively with multiplex roles RS485 communication module communication connection；PLC It is connect with man-machine interface；Regulated power supply is PLC, RS485 communication module, man-machine interface power supply；Acquisition rate, number are set in PLC According to baud rate；Design initial picture and data threshold limit value in man-machine interface；Multiple SM2130B-EC type electric conductivity sensor peaces Entrance mounted in a Regional Admin road and each lateral.

The quantity of conductivity sensor shown in Fig. 1 is 3, is intended merely to facilitate signal；The quantity root of conductivity sensor It is arranged according to the location point detected is needed；For example, on-line monitoring system is arranged in a cell, in cell main pipeline entrance, respectively The lateral entrance of building, the lateral of each floor dispose conductivity sensor；

The characteristics of the utility model: by being examined in real time by man-machine interface by each conductivity sensor data collection to PLC Pollution pipeline location can quickly be positioned, be subtracted by each conductivity sensor sensing data difference by surveying water quality and setting threshold limit value It is few blindly to overhaul.

In the utility model, SM2130B-EC type electric conductivity sensor is the production of Shanghai Sou Bo Industrial Co., Ltd., Model SM2130B-EC, product name are RS485 conductivity sensor.

In the utility model, PLC preferably selects the Mitsubishi PLC of model FX3U；It is introduced are as follows: third generation Miniature programmable Controller FX3U Mitsubishi PLC, the RAM memory of built-in up to 64K large capacity, the high speed processing of built-in industry highest level 0.065 μ S/ elementary instruction, magnitude control: 16 ~ 384 (including CC-LINK I/O) points, built-in 3 axis 100kHz of independence position function Energy (transistor output type), basic unit left side can connect powerful simple and easy-to-use adapter.

In the utility model, multiplex roles RS485 communication module preferably selects Mitsubishi PLC to communicate expansion interface FX3U-485- BD RS485 communication module expansion board；The mating setting of Mitsubishi PLC of it and model FX3U.

In the utility model, man-machine interface preferably selects prestige synthetic fibre to lead to TK6071Ip；Its performance parameter are as follows: wide input voltage model Enclose 10.5-28VDC, 7 " 800x480 TFT LCD, LED backlight, fanless cooling system, internal storage memory and 10000 years It goes through, IP65 panel degree of protection, COM2 RS-485 supports MPI 187.5K, built-in power insulation blocking.

The advantage of the utility model:

1, network deployment is simple: the system of this exploitation Modbus communication protocol stable using low pressure, sensor are adopted With RS485 agreement, remote signaling stablizes 1.2 kilometers of transmission, the popularization covering of entirely appropriate medium-and-large-sized town region, man-machine boundary Face in real time can split screen be super large display screen, to carry out data publicity in the significant position of cell；

2. secondary system exploitation is simple: can read and modify with professional software built in program, program is completely open, slightly New type monitoring content can be increased in systems by having the equal of electrician PLC programming, the single index of this and use single-chip microcontroller encapsulation The product of monitoring is compared, and is more suitable for public welfare from flexibility angle and is promoted the use of for a long time；

3. it is reliable for operation, it is suitble to continuous on-line monitoring；

4. object-oriented is town region management, property, the prison of water quality core index is realized with most economical reliable means Survey, because using open system and simple man-machine dialog interface, on this basis can Quick Extended polymorphic type, such system It can equally be promoted in mechanisms such as factory, water reservoir management, schools；

5. in terms of secondary development, advantage is become apparent, does not have to buy matched probe, sensor etc., can effectively reduce suitable With the environmental protection expenditure of unit.

Claims (1)

1. regional water quality Internet of Things on-line monitoring system, it is characterised in that: sensed including multiple SM2130B-EC type electric conductivities Device, PLC, regulated power supply, multiplex roles RS485 communication module, man-machine interface, the communication of multiplex roles RS485 communication module and PLC Interface connection, multiple SM2130B-EC type electric conductivity sensors respectively with multiplex roles RS485 communication module communication connection；PLC with Man-machine interface connection；Regulated power supply is PLC, RS485 communication module, man-machine interface power supply；

Acquisition rate, data baud rate are set in PLC；Design initial picture and data threshold limit value in man-machine interface；

Multiple SM2130B-EC type electric conductivity sensors are mounted on the entrance of a Regional Admin road and each lateral.