CN209589915U - A kind of Multifunctional water tester - Google Patents

Abstract

The utility model relates to a kind of Multifunctional water testers, including Electrochemical Detection module, A/D digital-to-analogue conversion control module, LCD digital display module, sound and light alarm module, the detection of Electrochemical Detection module is hardness, temperature, salinity, pH and cation, anion, is connect by RS232 serial communication interface with single-chip microcontroller STC89-LQFP；Electrochemical Detection module is delivered to A/D digital-to-analogue conversion control module by numerical signal setting module, and passes through it is judged that whether the signal value of the water quality detection and ion detection surveyed is more than setting value, and shows measured numerical value in LCD digital display module.When the signal value of detection is above standard value, digital display module shows that numerical value is displayed in red and flashes, and sound and light alarm module issues red alarm signal and simultaneously prompts owner.Water quality and ion real-time monitoring are shown in the seawater detection device use.The device using simple, realize it is convenient, at low cost, for ease of maintenaince the advantages that, there is good economic benefit and social application value.

Description

A kind of Multifunctional water tester

Technical field

The utility model relates to a kind of Multifunctional water testers.

Background technique

China's mariculture industry is quickly grown in recent years, and cultured output occupies first place in the world for years.As seawater is supported The raising of plantation technology level and the expansion of the market demand, sea-farming had tended to the cultivation of intensive, high density, high production already Mode.At the same time, sea-farming bring problem of environmental pollution also can not be ignored, the pollution system in one side breeding environment About the development of mariculture industry, the discharge of another aspect breeding pollution object, deposition can cause water eutrophication, cause water quality Deteriorate, unbalance Aquaculture ecosystem, disorder or even collapse completely are caused when serious.In order to protect the marine environment, reduces disease and pass It broadcasts, research seawater seawater quality detection has highly important realistic meaning.For this purpose, develop it is a kind of can be each in real-time monitoring seawater Metal ion species (Ca²⁺、Mg²⁺、Fe³⁺、K⁺、Na⁺Deng) concentration, acid ion (NO₂ ^-、NO₃ ^2-、PO₄ ^2-、CO₃ ^2-Deng) concentration with And the device of temperature, pH value, hardness of water body etc., valence is used with very big to the protection of mariculture industry and briny environment Value, while there is very big application prospect and application market.

Currently, being detected in the existing many researchs of seawater context of detection using various research methods (titration, spectroscopic methodology etc.) Seawater quality.The detection device is mainly to utilize the detection method of electrochemical probe (electrode) method and spectroscopic methodology.It is visited by corresponding The electric signal and spectral signal of head feedback realize that real-time visual numerical value is shown using digital-to-analogue microprocessing.Meanwhile passing through number The range of value signal setting module setting detection prompts work using sound and light signal when the numerical value of detection is more than the range of setting It takes appropriate measures and handles as personnel.To realize the optimal growth of sea-farming biology and the inspection of marine ecosystem It surveys and protects.

Summary of the invention

Technical problem to be solved in the utility model is provided a kind of for water quality inspection using electrochemical sensor principle The easy device of survey.The technical solution taken are as follows: a kind of Multifunctional water tester, including Electrochemical Detection module, A/D Digital-to-analogue conversion control module, microprocessor, LCD digital display module and sound and light alarm module；The Electrochemical Detection module packet Water quality detection electrochemical sensor and ion detection electrochemical sensor are included, by RS232 serially with letter interface and J1 ~ J5 interface group At；A/D digital-to-analogue conversion control module is made of power level conversion chip, A/D analog-digital chip and power supply control chip； The LCD digital display module is made of LCD1602 liquid crystal display and LCD12864 liquid crystal display；The sound-light alarm mould Block is connected and composed by triode Q2, light emitting diode D1 and bell BELL；The Electrochemical Detection module by interface J2 ~ J5 with RS232B is serially with No. 3 interfaces connection of J1 interface in letter interface, while No. 2 interfaces of J1 are connect with J6 interface；Microprocessor, Analog-digital chip and LCD digital display screen are connect with the power supply control chip；The J6 interface of Electrochemical Detection module with IN0 ~ IN7 analog input channel of A/D analog-digital chip connects；The data output channel 2-1 of the A/D analog-digital chip ~ 2-8, conversion end signal path EOC, address latch channel ALE, IC control channel ENABLE, conversion starting channel START, Clock signal channel CLK, address line passage ADDa ~ ADDc are respectively at the port p1.0 ~ p1.7 of microprocessor, the port p3.2, The port p4.0 ~ p4.3, the connection of the port p3.5 ~ p3.7；The port p0.0 ~ p0.7 of microprocessor is with LCD1602's and LCD12864 The connection of the port D0 ~ D7, p1.0 ~ p1.1 connect with resistance R9, R10 in sound and light alarm module, p1.5 ~ p1.7 and LCD1602's The port PSB of the connection of the port RS, RW, EN, p3.3 and LCD12864 connect, and p2.0 ~ p2.7 is connect with C0 ~ C3, L0 ~ L3, RXD, The port TXD and the port R/W/SID, D/ICS of LCD12864 connect, while connecting with T1 IN of RS232, R1 OUT terminal mouth, The port XTAL1, XTAL2, RST is connect with the port that crystal oscillator includes.

Preferably, the microprocessor is specially STC89-LQFP；The A/D analog-digital chip is specially AD0809； The power supply control chip is specially LM2638；The triode Q2 is specially NPN-SOT23；The light emitting diode D1 is specific For LED3；The power level conversion chip is specially MAX232AEPE.

The utility model relates to a kind of Multifunctional water testers, including Electrochemical Detection module, A/D digital-to-analogue conversion control Molding block, LCD digital display module, sound and light alarm module, wherein Electrochemical Detection module is by water quality detection and ion detection Two parts composition, what is detected respectively is hardness, temperature, salinity, pH and cation, such as: Ca, K, Na, anion, such as: NO₃ ^2-, And it is connect by RS232 serial communication interface with single-chip microcontroller STC89-LQFP；Electrochemical Detection module is set by numerical signal Module is delivered to A/D digital-to-analogue conversion control module.A/D digital-to-analogue conversion control module, for judge surveyed water quality detection and from Whether the signal value (digital signal) of son detection is more than setting value (standard value), while also control LCD digital display module is shown The numerical value of measured water quality detection and ion detection.When the signal value of detection is above standard value, digital display module shows number Value is displayed in red and constantly flashes, and sound and light alarm module issues red alarm signal and prompts owner.In entire multi-functional seawater Water quality and ion real-time monitoring are shown in detection device use process.For the device using simply, it is convenient, at low cost, easy to realize In the maintenance the advantages that, there is good economic benefit and social application to be worth.

Detailed description of the invention

Fig. 1 is the utility model circuit block diagram；

Fig. 2 is the utility model circuit diagram；

Fig. 3 is circuit diagram left part part enlarged diagram in Fig. 2；

Fig. 4 is circuit diagram mid portion enlarged diagram in Fig. 2；

Fig. 5 is circuit diagram right part part enlarged diagram in Fig. 2.

In figure: 1, Electrochemical Detection module；2, A/D digital-to-analogue conversion control module；3, microprocessor；4, LCD number is shown Module；5, sound and light alarm module.

Specific embodiment

Below with reference to embodiment, the utility model is described in further detail, but is not intended to limit the protection model of the utility model It encloses.

Please refer to Fig. 1-5, a kind of Multifunctional water tester, including Electrochemical Detection module 1, A/D digital-to-analogue conversion control Molding block 2, LED digital display module 4, sound and light alarm module 5, wherein Electrochemical Detection module 1 is by water quality detection and ion Two parts composition is detected, what is detected respectively is hardness, temperature, salinity, pH and cation, such as: Ca, K, Na, anion, such as: NO₃ ^2-, RS232 is serially the same as letter interface and J1 ~ J5 interface composition；A/D digital-to-analogue conversion control module 2 is by A/D analog-digital chip (chip ADC0809) and power supply control chip (LM2638) composition；The LED digital display module 4 is by LCD liquid crystal display Shield (LCD1602 and LCD12864) composition；The sound and light alarm module 5 is by triode Q2(NPN-SOT23), light-emitting diodes Pipe D1(LED3) and bell BELL connect and compose.The electrochemical sensor signal of Electrochemical Detection module 1 by interface J2 ~ J5 with RS232B serially with No. 3 interfaces connection of J1 interface in letter interface, is sent to power level conversion chip (MAX232AEPE) The port input port R1IN, R2IN.Signal is delivered to A/D analog-digital chip by the output port T1 OUT of chip MAX232 Input port IN0 ~ IN7, the end p1.0 ~ p1.7 of single-chip microcontroller is input to by output port 2-1 ~ 2-8 after digital-to-analogue conversion Mouthful.Signal input RXD and the output port TXD input RXD and export the port TXD with the signal of microprocessor 3 to be connect.Meanwhile turning Change end signal channel EOC, address latch channel ALE, IC control channel ENABLE, conversion starting channel START, clock signal Channel C LK, address line passage ADDa ~ ADDc is respectively at the port p1.0 ~ p1.7 of microprocessor 3, the port p3.2, p4.0 ~ p4.3 Port, the connection of the port p3.5 ~ p3.7.The port p0.0 ~ p0.7 of microprocessor 3 and the port D0 ~ D7 of LCD1602 and LCD12864 Connection.The port XTAL1, XTAL2, RST is connect with the port comprising crystal oscillator.Not only guarantee the normal conveying of data, but also guarantees 3 safe and stable operation of microprocessor.Data are passed through after being handled by microprocessor 3 through p1.0 ~ p1.1 and sound-light alarm mould Resistance R9, R10 connection in block 5, realizes acousto-optic hint by triode Q1, clock BELL and light emitting diode D1.Pass through simultaneously The port RS, RW, EN of p1.5 ~ p1.7 and LCD1602 connects, and the port PSB of p3.3 and LCD12864 connect, p2.0 ~ p2.7 with The port R/W/SID, D/ICS of C0 ~ C3, L0 ~ L3 connection, the port RXD, TXD and LCD12864 connect, and realize the number of detection signal Value display.Wherein, resistance R1=4K Ω, R6=R7=R8=R9=R10=R11=R12=10K Ω involved in circuit, capacitor C1=C2= The μ of C3=C4=C5=C7=C10=0.1 F, C8=C12=22pF, the μ of polar capacitor C6=C11=10 μ of F/16V, C9=2.2 F.

This kind of Multifunctional water tester provided by the utility model when in use, according to it is actually detected from The examination criteria of sub- concentration is set (concentration when the practical sound-light alarm for setting).Using Electrochemical Detection module 1 to water Hardness, temperature, salinity, pH and cation in body: Ca, K, Na etc.；Anion N O₃ ^2-It is detected, signal passes through MAX232AEPE carries out level conversion, is input in A/D digital-to-analogue conversion control module 2.By actually detected level analogue signals After being converted to digital voltage signal, it is transported in microprocessor 3.Signal is sent to LCD liquid crystal display screen all the way, and real-time display is current Specific value.Microprocessor 3 is judged simultaneously, exports sound and light alarm signal all the way.When hardness, temperature, salinity, pH and sun from Son: Ca, K, Na；Anion N O₃ ²Detected value when being lower than setting value, sound light alarming circuit by clock BALL and light emitting diode into Row acousto-optic hint；When detected value is higher than setting value, sound light alarming circuit carries out acousto-optic by clock BALL and light emitting diode and mentions Show.Show current specific value by LCD simultaneously, staff according to showing that numerical value can do corresponding adjustment, realize from Sub- concentration guarantees that animal and plant are raw in optimal growing environment in the concentration range of certain (being suitble to animal and plant growth) It is long.

Claims (2)

1. a kind of Multifunctional water tester, it is characterised in that: controlled including Electrochemical Detection module (1), A/D digital-to-analogue conversion Module (2), microprocessor (3), LCD digital display module (4) and sound and light alarm module (5)；The Electrochemical Detection module (1) Including water quality detection electrochemical sensor and ion detection electrochemical sensor, by RS232 serially with letter interface and J1 ~ J5 interface Composition；A/D digital-to-analogue conversion control module (2) is by power level conversion chip, A/D analog-digital chip and power supply control chip Composition；The LCD digital display module (4) is made of LCD1602 liquid crystal display and LCD12864 liquid crystal display；The sound Light alarm module (5) is connected and composed by triode Q2, light emitting diode D1 and bell BELL；The Electrochemical Detection module (1) No. 3 interfaces by interface J2 ~ J5 with RS232B serially with J1 interface in letter interface are connect, while No. 2 interfaces of J1 connect with J6 Mouth connection；Microprocessor (3), analog-digital chip and LCD digital display screen are connect with the power supply control chip；Electrochemistry The J6 interface of detection module (1) is connect with IN0 ~ IN7 analog input channel of A/D analog-digital chip；The A/D digital-to-analogue conversion Data output channel 2-1 ~ 2-8 of chip, conversion end signal path EOC, address latch channel ALE, IC control channel ENABLE, conversion starting channel START, clock signal channel CLK, address line passage ADDa ~ ADDc is respectively at microprocessor (3) The port p1.0 ~ p1.7, the port p3.2, the port p4.0 ~ p4.3, the port p3.5 ~ p3.7 connection；The p0.0 of microprocessor (3) ~ The port p0.7 is connect with the port D0 ~ D7 of LCD1602 and LCD12864, the resistance in p1.0 ~ p1.1 and sound and light alarm module (5) The port RS, RW, EN of R9, R10 connection, p1.5 ~ p1.7 and LCD1602 connect, and the port PSB of p3.3 and LCD12864 connect, P2.0 ~ p2.7 is connect with C0 ~ C3, L0 ~ L3, the port R/W/SID, D/ICS connection of the port RXD, TXD and LCD12864, simultaneously It is connect with T1 IN of RS232, R1 OUT terminal mouth, the port XTAL1, XTAL2, RST is connect with the port that crystal oscillator includes.

2. Multifunctional water tester according to claim 1, it is characterised in that: the microprocessor (3) is specially STC89-LQFP；The A/D analog-digital chip is specially AD0809；The power supply control chip is specially LM2638；It is described Triode Q2 is specially NPN-SOT23；The light emitting diode D1 is specially LED3；The power level conversion chip is specially MAX232AEPE。