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CN109725122A - A handheld water quality testing device - Google Patents

A handheld water quality testing device Download PDF

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Publication number
CN109725122A
CN109725122A CN201910160111.1A CN201910160111A CN109725122A CN 109725122 A CN109725122 A CN 109725122A CN 201910160111 A CN201910160111 A CN 201910160111A CN 109725122 A CN109725122 A CN 109725122A
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China
Prior art keywords
module
water quality
electrically connected
sensor
processing circuit
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CN201910160111.1A
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Chinese (zh)
Inventor
辛云宏
陈安东
马剑飞
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Shaanxi Normal University
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Shaanxi Normal University
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Priority to CN201910160111.1A priority Critical patent/CN109725122A/en
Publication of CN109725122A publication Critical patent/CN109725122A/en
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Abstract

The present invention relates to a kind of handheld water quality detecting device, including handheld terminal and water quality detection end, the handheld terminal is electrically connected with water quality detection end by CAN module;The handheld water quality detecting device, solve the problems, such as that existing water quality detection instrument parameter is single, multinomial water quality parameter can be detected simultaneously, and data transmission is reliable and stable, detection interference is removed from environment and structure various aspects, testing result is reliable and stable, testing result can save or real-time transmission.

Description

A kind of handheld water quality detecting device
Technical field
The invention belongs to water quality inspection technique fields, and in particular to a kind of handheld water quality detecting device.
Background technique
Water quality indicates the physics (coloration, turbidity, smell etc.), chemical (inorganic matter and content of organics) and biology of water body The characteristic of (bacterium, microorganism, planktonic organism etc.) and its situation of composition, different water have corresponding water quality parameter and water quality mark Standard, such as Drinking Water, industrial water standard.As dynamics of the country to water quality protection is increasing, put into effect at present The long system in corresponding river implements special messenger's responsibility system to water quality of river, therefore being badly in need of one kind can be comprehensive to parameters of river water quality realization Close the device of detection.
Water quality inspection technique mainly includes laboratory testing and instrument detection, and laboratory testing is directed to greatly chemical method, It is too high for the requirement of place, operator and experimental situation, it cannot achieve large-scale promotion, realize the dedicated of water quality comprehensive detection Instrument cost is high, needs special messenger to operate, also cannot achieve the real-time detection of water quality parameters, thus also cannot achieve and answer on a large scale With.It is more mature to the detection of single water quality parameter in domestic equipment at present, as dissolved oxygen (DO), PH, smell, turbidity and color The water quality parameters such as degree have a series of relevant instruments, and some related sensors and technical parameter are also fairly perfect, by existing Technology realizes that a kind of measuring system of parameter is not difficult matter yet.
But the detecting instrument of water quality parameter is that single parameter detects mostly at present, inefficiency, to water in home equipment Matter parametric synthesis detection portable instrumentation mostly rest on theory stage, temporarily can not commercialization, relevant departments implement The instrument of water quality monitoring relies primarily on import equipment, with high costs, and after-sales service, technical support etc. have it is many not Just.Based on this, the present invention proposes a kind of handheld water quality detecting device, it can be achieved that multi-parameter water-quality real-time detection.
Summary of the invention
Present invention aim to address detection parameters existing for the detecting instrument of existing water quality parameter are single, detection efficiency It is low, water quality detection problem at high cost.
For this purpose, the present invention provides a kind of handheld water quality detecting device, including handheld terminal and water quality detection end, it is described Handheld terminal is electrically connected with water quality detection end by CAN module.
The handheld terminal includes processor, and floating material detection module, display module, smell sensor module, the first AD are adopted Egf block, the first CAN communication module, battery, the first DCDC power module, memory module, WI-FI module, is taken the photograph Keysheet module As head, liquid crystal display;The camera is electrically connected by floating material detection module with processor;The liquid crystal display passes through Display module is electrically connected with processor;The smell sensor module is electrically connected by the first AD sampling module with processor;Institute Keysheet module, memory module, WI-FI module, the first DCDC power module, the first CAN communication module is stated to be electrically connected with processor It connects;The battery is electrically connected with the first power module.
The model STM32F767 of the processor.
The water quality detection end includes controller, the 2nd DCDC power module, the second CAN communication module, DO sensor, PH Sensor, temperature sensor, chromaticity transducer, turbidity transducer, DO signal processing circuit, PH signal enhanced processing electricity Road, temperature signal amplification treatment circuit, carrier chrominance signal amplification treatment circuit, turbid ity signal amplification treatment circuit, the 2nd AD sampling Module;The DO sensor is electrically connected by DO signal processing circuit with the 2nd AD sampling module;The PH sensor is logical PH signal processing circuit is crossed to be electrically connected with the 2nd AD sampling module;The temperature sensor passes through temperature signal enhanced processing Circuit is electrically connected with the 2nd AD sampling module;The chromaticity transducer is sampled by carrier chrominance signal amplification treatment circuit and the 2nd AD Module electrical connection;The turbidity transducer is electrically connected by turbid ity signal amplification treatment circuit with the 2nd AD sampling module;It is described 2nd DCDC power module, the second CAN communication module, the 2nd AD sampling module are electrically connected with the controller.
The model STM32F334 of the controller.
First CAN communication module is electrically connected with the second CAN communication module by conducting wire.
The battery is electrically connected with the 2nd DCDC power module by conducting wire.
Beneficial effects of the present invention: this handheld water quality detecting device provided by the invention solves existing water quality inspection Survey the single problem of instrument parameter, can detect multinomial water quality parameter simultaneously, and data transmission it is reliable and stable, from environment and knot Structure various aspects removal detection interference, testing result is reliable and stable, testing result can save or real-time transmission.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention.
Fig. 2 is the circuit diagram of processor module.
Fig. 3 is the circuit diagram of the first CAN communication module.
Fig. 4 is the circuit diagram of liquid crystal display module.
Fig. 5 is the circuit diagram of WI-FI module.
Fig. 6 is the circuit diagram of camera module.
Fig. 7 is the circuit diagram of memory module module.
Fig. 8 is the circuit diagram of controller module.
Fig. 9 is the circuit diagram of the second CAN communication module.
Figure 10 is the circuit diagram of temperature signal enhanced processing.
Figure 11 is the circuit diagram of PH signal enhanced processing.
Figure 12 is the circuit diagram of DO signal enhanced processing.
Figure 13 is the circuit diagram of turbid ity signal enhanced processing.
Figure 14 is the circuit diagram of carrier chrominance signal enhanced processing.
Figure 15 is DCDC power circuit diagram.
Figure 16 is 5V output circuit figure.
Figure 17 is 3.3V output circuit figure.
In figure: 1, processor;2, controller;3, WI-FI module;4, floating material detection module;5, camera;6, mould is shown Block;7, liquid crystal display;8, the first AD sampling module;9, smell sensor module;10, Keysheet module;11, the first CAN communication Module;12, the first DCDC power module;13, battery;14, cable connector;15, underwater electrical connector;16, cable; 17, the 2nd DCDC power module;18, the second CAN communication module;19, the 2nd AD sampling module;20, DO signal enhanced processing electricity Road;21, PH signal processing circuit;22, temperature signal amplification treatment circuit;23, carrier chrominance signal amplification treatment circuit;24, Turbid ity signal amplification treatment circuit;25, DO sensor;26, PH sensor;27, temperature sensor;28, chromaticity transducer;29, Turbidity transducer;30, host computer;31, cable protective sleeve;32, memory module.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
Embodiment 1
Single in order to solve detection parameters existing for the detecting instrument of existing water quality parameter, detection efficiency is low, water quality inspection Survey problem at high cost.A kind of handheld water quality detecting device as shown in FIG. 1 to FIG. 7 is present embodiments provided, including hand-held End and water quality detection end, the handheld terminal are electrically connected with water quality detection end by CAN module;The handheld water quality detection Device solves the problems, such as that existing water quality detection instrument parameter is single, can detect multinomial water quality parameter simultaneously, and data pass It is defeated it is reliable and stable, from environment and structure various aspects removal detection interference, testing result is reliable and stable, testing result can save or Person's real-time transmission;Can detect simultaneously seven water quality parameters, data transmission it is reliable and stable, from environment and structure various aspects removal inspection Survey interference, testing result is reliable and stable, testing result can save or real-time transmission;And the device stability is good, nothing It needs special messenger's operation, without sampling of water quality, is suitable for the water quality detections on the spot such as rivers and lakes.
As shown in Figure 2 to 7, the handheld terminal includes processor 1, and floating material detection module 4, display module 6, smell pass Sensor module 9, the first AD sampling module 8, Keysheet module 10, the first CAN communication module 11, battery 13, the first DCDC power supply Module 12, memory module 32, WI-FI module 3, camera 5, liquid crystal display 7;The camera 5 passes through floating analyte detection mould Block 4 is electrically connected with processor 1;The liquid crystal display 7 is electrically connected by display module 6 with processor 1;The smell sensor Module 9 is electrically connected by the first AD sampling module 8 with processor 1;The Keysheet module 10, memory module 32, WI-FI module 3, First DCDC power module 12, the first CAN communication module 11 are electrically connected with processor 1;The battery 13 and the first power supply Module 12 is electrically connected, and provides electric energy for the first power module 12;Input voltage is converted into 3V, 5V by the first DCDC power module 12 Each chip and amplifier are supplied to after the operating voltages such as -5V;Memory module 32 is used to store the data information and picture of acquisition Information;WI-FI module 3 is used to will test data and image information is transmitted to host computer 30.
The model STM32F767 of the processor 1, is illustrated in figure 2 the peripheral circuit diagram of processor 1.
As shown in Fig. 8~14, the water quality detection end includes controller 2, the 2nd DCDC power module 17, the 2nd CAN logical Believe module 18, DO sensor 25, PH sensor 26, temperature sensor 27, chromaticity transducer 28, turbidity transducer 29, DO signal Amplification treatment circuit 20, PH signal processing circuit 21, temperature signal amplification treatment circuit 22, carrier chrominance signal enhanced processing electricity Road 23, turbid ity signal amplification treatment circuit 24, the 2nd AD sampling module 19;The DO sensor 25 passes through DO signal enhanced processing Circuit 20 is electrically connected with the 2nd AD sampling module 19;The PH sensor 26 passes through PH signal processing circuit 21 and the 2nd AD Sampling module 19 is electrically connected;The temperature sensor 27 passes through temperature signal amplification treatment circuit 22 and the 2nd AD sampling module 19 Electrical connection;The chromaticity transducer 28 is electrically connected by carrier chrominance signal amplification treatment circuit 23 with the 2nd AD sampling module 19;Institute Turbidity transducer 29 is stated to be electrically connected by turbid ity signal amplification treatment circuit 24 with the 2nd AD sampling module 19;2nd DCDC Power module 17, the second CAN communication module 18, the 2nd AD sampling module 19 are electrically connected with controller 2;2nd DCDC power supply mould Block 17 is also to power after input voltage to be converted into the operating voltages such as 3V, 5V and -5V to each chip and amplifier;DO sensor 25 The signal of detection passes through DO signal processing circuit 20, then again by the 2nd AD sampling module 19 acquisition built in controller 2 Controller 2 is transferred data to be processed and displayed;The signal that PH sensor 26 detects passes through PH signal processing circuit 21 transfer data to controller 2 by the 2nd AD sampling module 19 acquisition built in controller 2 again again is processed and displayed; The signal that temperature sensor 27 detects passes through the 2nd AD sampling built in controller 2 by temperature signal amplification treatment circuit 22 again The acquisition of module 19 transfers data to controller 2 again and is processed and displayed;The signal that chromaticity transducer 28 detects passes through coloration Signal processing circuit 23 transfers data to controller by the 2nd AD sampling module 19 acquisition built in controller 2 again again 2 are processed and displayed;The signal that turbidity transducer 29 detects passes through controller 2 by turbid ity signal amplification treatment circuit 24 again Built-in the 2nd AD sampling module 19 acquisition transfers data to controller 2 again and is processed and displayed;Wherein, measured temperature The pH value that DO value, the PH sensor 26 acquired to DO sensor 25 acquires carries out temperature-compensating.
The model STM32F334 of the controller 2, is illustrated in figure 3 the peripheral circuit diagram of controller 2.
First CAN communication module 11 is electrically connected with the second CAN communication module 18 by conducting wire, so that processor 1 realizes interactive type communication with controller 2, and CAN bus is low in cost, real-time communication is good, error correcting capability is strong and transmission range is long; Processor 1 passes through to send instructions under CAN, and the data information of detection is transmitted to processor 1 with controller 2;CAN signal line and power supply Line is encapsulated in a cable 16, is all made of two point two-wire connection type, and cable line length can be according to actual use situation tune Whole, additional cable protective case 31 is protected;Portion of the handle has cable connector 14, and there is underwater electrical connector in water quality detection part 15;Water quality detection part be upper layer and lower layer, upper layer do sealing water-proofing treatment be used to place circuit structure, sensor is placed in lower layer can It is immersed in water, battery 13 is also electrically connected with the 2nd DCDC power module 17 by conducting wire;Battery 13 is electric to the first DCDC Source module 12,17 power supply power supply of the 2nd DCDC power module provide safeguard for complete machine work.It is first shown in Figure 15~17 The main circuit diagram of DCDC power module 12,17 power module of the 2nd DCDC power module.
Further, liquid crystal display 7 can both show testing result, and each measurement mould can also be realized by control The switch of block, data are saved with transmission, instrument calibration etc..
Further, floating material detection module 4 first passes through camera 5 and takes pictures sampling to water quality, then is obtained by algorithm process Floater parameter out.
Further, DO and PH measurement is realized using chemical sensor, temperature detection thermocouple, turbidity colour measurement is used Optical instrument and a kind of structure for being protected from light waterproof completely are realized.
The present apparatus use touch liquid crystal display, be aided with the work of key co- controlling whole device, can measure simultaneously DO, Seven PH, temperature, coloration, turbidity, floating material and smell water quality parameters, can also choose a part and be tested, and detect every time Result can not only be shown on liquid crystal display, can also be saved in and external Flash and be sent to host computer.
There is corresponding respective signal processing circuit module per parameter all the way, floating material passes through corresponding image processing algorithm Collected water quality pictorial information is handled, and then obtains testing result;Odor detection is divided into six according to certain standard A grade;Temperature detection realizes that DO and PH measurement result is mainly affected by temperature using thermocouple, in calibration by by standard Liquid, which is placed under different temperatures, carries out temperature-compensating, it is ensured that the accuracy of testing result;The measurement of turbidity and coloration is using optics member Interlock circuit is placed in the structure that one is protected from light waterproof and realizes, avoids external interference by device.
Present apparatus portion of the handle only need cup size it is achieved that water quality detection part be top seal it is anti-, Lower part install sensor metal structure, compact overall structure, it is easy to carry, without special messenger operation, it is powerful, not by place With the influence of detection environment.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention Protection scope.

Claims (7)

1.一种手持式水质检测装置,其特征在于:包括手持端以及水质检测端,所述手持端与水质检测端通过CAN模块进行电连接。1. A handheld water quality detection device is characterized in that: comprising a handheld terminal and a water quality detection terminal, and the handheld terminal and the water quality detection terminal are electrically connected by a CAN module. 2.如权利要求1所述的一种手持式水质检测装置,其特征在于:所述手持端包括处理器(1),漂浮物检测模块(4)、显示模块(6)、气味传感器模块(9)、第一AD采样模块(8)、键盘模块(10)、第一CAN通信模块(11)、蓄电池(13)、第一DCDC电源模块(12)、存储模块(32)、WI-FI模块(3)、摄像头(5)、液晶显示屏(7);所述摄像头(5)通过漂浮物检测模块(4)与处理器(1)电连接;所述液晶显示屏(7)通过显示模块(6)与处理器(1)电连接;所述气味传感器模块(9)通过第一AD采样模块(8)与处理器(1)电连接;所述键盘模块(10)、存储模块(32)、WI-FI模块(3)、第一DCDC电源模块(12)、第一CAN通信模块(11)均与处理器(1)电连接;所述蓄电池(13)与第一电源模块(12)电连接。2. A handheld water quality detection device as claimed in claim 1, characterized in that: the handheld terminal comprises a processor (1), a floating object detection module (4), a display module (6), an odor sensor module ( 9), first AD sampling module (8), keyboard module (10), first CAN communication module (11), battery (13), first DCDC power module (12), storage module (32), WI-FI a module (3), a camera (5), and a liquid crystal display screen (7); the camera head (5) is electrically connected to the processor (1) through the floating object detection module (4); the liquid crystal display screen (7) displays The module (6) is electrically connected with the processor (1); the smell sensor module (9) is electrically connected with the processor (1) through the first AD sampling module (8); the keyboard module (10), the storage module ( 32), the WI-FI module (3), the first DCDC power supply module (12), and the first CAN communication module (11) are all electrically connected to the processor (1); the battery (13) is electrically connected to the first power supply module (11). 12) Electrical connection. 3.如权利要求2所述的一种手持式水质检测装置,其特征在于:所述处理器(1)的型号为STM32F767。3. The hand-held water quality detection device according to claim 2, wherein the processor (1) has a model of STM32F767. 4.如权利要求1所述的一种手持式水质检测装置,其特征在于:所述水质检测端包括控制器(2)、第二DCDC电源模块(17)、第二CAN通信模块(18)、DO传感器(25)、PH传感器(26)、温度传感器(27)、色度传感器(28)、浊度传感器(29)、DO信号放大处理电路(20)、PH信号放大处理电路(21)、温度信号放大处理电路(22)、色度信号放大处理电路(23)、浊度信号放大处理电路(24)、第二AD采样模块(19);所述DO传感器(25)通过DO信号放大处理电路(20)与第二AD采样模块(19)电连接;所述PH传感器(26)通过PH信号放大处理电路(21)与第二AD采样模块(19)电连接;所述温度传感器(27)通过温度信号放大处理电路(22)与第二AD采样模块(19)电连接;所述色度传感器(28)通过色度信号放大处理电路(23)与第二AD采样模块(19)电连接;所述浊度传感器(29)通过浊度信号放大处理电路(24)与第二AD采样模块(19)电连接;所述第二DCDC电源模块(17)、第二CAN通信模块(18)、第二AD采样模块(19)均与控制器(2)电连接。4. A hand-held water quality detection device according to claim 1, characterized in that: the water quality detection terminal comprises a controller (2), a second DCDC power supply module (17), and a second CAN communication module (18) , DO sensor (25), PH sensor (26), temperature sensor (27), chromaticity sensor (28), turbidity sensor (29), DO signal amplification processing circuit (20), PH signal amplification processing circuit (21) , a temperature signal amplification processing circuit (22), a chromaticity signal amplification processing circuit (23), a turbidity signal amplification processing circuit (24), a second AD sampling module (19); the DO sensor (25) is amplified by the DO signal The processing circuit (20) is electrically connected to the second AD sampling module (19); the PH sensor (26) is electrically connected to the second AD sampling module (19) through the PH signal amplification processing circuit (21); the temperature sensor (26) is electrically connected to the second AD sampling module (19). 27) is electrically connected to the second AD sampling module (19) through the temperature signal amplification processing circuit (22); the chromaticity sensor (28) is connected to the second AD sampling module (19) through the chromaticity signal amplification processing circuit (23) Electrical connection; the turbidity sensor (29) is electrically connected with the second AD sampling module (19) through the turbidity signal amplification processing circuit (24); the second DCDC power module (17), the second CAN communication module ( 18) and the second AD sampling module (19) are both electrically connected to the controller (2). 5.如权利要求4所述的一种手持式水质检测装置,其特征在于:所述控制器(2)的型号为STM32F334。5. A handheld water quality detection device according to claim 4, characterized in that: the model of the controller (2) is STM32F334. 6.如权利要求2或4所述的一种手持式水质检测装置,其特征在于:所述第一CAN通信模块(11)与第二CAN通信模块(18)通过导线电连接。6. A handheld water quality detection device according to claim 2 or 4, characterized in that: the first CAN communication module (11) and the second CAN communication module (18) are electrically connected through wires. 7.如权利要求2或4所述的一种手持式水质检测装置,其特征在于:所述蓄电池(13)与第二DCDC电源模块(17)通过导线电连接。7. A handheld water quality testing device according to claim 2 or 4, characterized in that: the battery (13) is electrically connected with the second DCDC power module (17) through wires.
CN201910160111.1A 2019-03-04 2019-03-04 A handheld water quality testing device Pending CN109725122A (en)

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CN115825364A (en) * 2022-10-13 2023-03-21 青海九零六工程勘察设计院有限责任公司 System and method for detecting water quality of drinking mineral water

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