CN203249861U - A wireless sensor network node device for detecting water quality turbidity in fish ponds - Google Patents

Abstract

Translated fromChinese

本实用新型公开一种用于检测鱼塘水质浊度的无线传感网络节点装置，包括漂浮在水中的浮球和固定连接于浮球底部且浸没在水中的进水部分，在浮球的上半球体内设置控制电路板，控制电路板上方设置无线通信天线，控制电路板通过通信接口经连接电缆连接浊度传感器，浊度传感器下端向下延伸在进水部分内，在进水部分的相面对的两侧上各开一个漏水口；在浊度传感器的壳体下端延伸有半圆柱管脚和L型直角管脚，在壳体以及半圆柱管脚和L型直角管脚内部设置光学测量系统，采用无线传感技术，既减少了人力成本，又减少了布线等的麻烦，具有很强的实时性，养殖户可以实时记录目标水域的水质浊度瞬时值，同时可以记录目标水域水质浊度的历史值。

The utility model discloses a wireless sensor network node device for detecting the turbidity of fishpond water, which comprises a floating ball floating in the water and a water inlet part fixedly connected to the bottom of the floating ball and submerged in the water. A control circuit board is set in the hemisphere, and a wireless communication antenna is set above the control circuit board. The control circuit board is connected to the turbidity sensor through the communication interface through the connecting cable. A water leakage port is opened on both sides of the pair; there are semi-cylindrical pins and L-shaped right-angle pins extending from the lower end of the turbidity sensor housing, and optical measurement is set inside the housing and the semi-cylindrical pins and L-shaped right-angle pins. The system adopts wireless sensing technology, which not only reduces labor costs, but also reduces the trouble of wiring and so on. degree historical value.

Description

Translated fromChinese

一种用于检测鱼塘水质浊度的无线传感网络节点装置A wireless sensor network node device for detecting water quality turbidity in fish ponds

技术领域technical field

本实用新型涉及无线传感网络检测技术，具体是用于鱼塘水质浊度检测的无线传感网络节点装置。The utility model relates to a wireless sensor network detection technology, in particular to a wireless sensor network node device for fish pond water quality turbidity detection.

背景技术Background technique

水质浊度是表示水中悬浮物对光线通过时所发生的阻碍程度，它与水样中存在颗粒物的含量、粒径大小、形状及颗粒表面对光散射特性有关。由于水中含有的泥沙、粘土及有机物等能够使水浑浊，所以浊度是天然水和饮用水的一项重要水质指标。这种浑浊对水的透明度有影响，当浑浊度较高时，将引起水中生物生态发生变化，因此控制水的浊度是非常重要的。The turbidity of water quality indicates the degree of obstruction of suspended matter in water to the passage of light. It is related to the content, particle size, shape and light scattering characteristics of the particle surface in the water sample. Turbidity is an important water quality indicator of natural water and drinking water because sediment, clay and organic matter contained in water can make water turbid. This turbidity affects the transparency of water. When the turbidity is high, it will cause changes in the biological ecology of the water, so it is very important to control the turbidity of the water.

浊度检测的基本原理为：使用一束固定波长的入射光射入待检测的水体中，在入射光的一个固定角度（一般为90^o）上的某距离处检测水体散射光强度。目前，检测水质浊度的常规手段大致分为3种：（1）现场比色分析；（2）由人工现场采样、实验室分析的方式；（3）采用便携式浊度仪，现场检测。上述第（1）和第（2）种方法无法实现对水环境参数的实时监测，第（3）种方法虽然能较好解决该问题，但这三种方法都需要人工进行现场作业，存在着需要投入大量劳动力成本的问题。The basic principle of turbidity detection is: use a beam of incident light with a fixed wavelength to inject into the water body to be detected, and detect the scattered light intensity of the water body at a certain distance at a fixed angle (generally 90^o ) of the incident light. At present, the conventional methods for detecting water quality turbidity are roughly divided into three types: (1) on-site colorimetric analysis; (2) manual on-site sampling and laboratory analysis; (3) on-site testing using a portable turbidity meter. The above methods (1) and (2) cannot realize real-time monitoring of water environment parameters. Although the method (3) can solve this problem better, all three methods require manual on-site operations, and there are Need to invest a lot of labor costs.

无线传感器网络（WSN）综合了传感器技术、嵌入式计算技术、分布式信息处理技术和通信技术等多个领域的关键技术，能够协作地实时监测、感知和采集网络分布区域内的各种环境或监测对象的信息，并对这些信息进行处理，获得详尽而准确的信息，传送到需要这些信息的用户。Wireless sensor network (WSN) integrates key technologies in multiple fields such as sensor technology, embedded computing technology, distributed information processing technology and communication technology, and can collaboratively monitor, sense and collect various environments or information in the network distribution area in real time. Monitor the information of the object, process the information, obtain detailed and accurate information, and transmit it to users who need it.

发明内容Contents of the invention

本实用新型针对现有技术中存在的不能简单方便地实时检测鱼塘的水质浊度的问题而提出了一种用于检测鱼塘水质浊度的无线传感网络节点装置，结合无线传感器技术实现对目标鱼塘水质浊度的实时监测，使养殖户知道目前水质浊度的状况，便于养殖户采取相应的措施，使水质符合渔业水域的标准。The utility model proposes a wireless sensor network node device for detecting the water quality turbidity of fish ponds for detecting the water quality turbidity of fish ponds simply and conveniently in the prior art, which is realized by combining wireless sensor technology The real-time monitoring of the turbidity of the water quality of the target fish pond enables the farmers to know the current status of the turbidity of the water quality, and it is convenient for the farmers to take corresponding measures to make the water quality meet the standards of fishery waters.

为达到上述目的，本实用新型用于检测鱼塘水质浊度的无线传感网络节点装置采用的技术方案是：包括漂浮在水中的浮球和固定连接于浮球底部且浸没在水中的进水部分，在浮球的上半球体内设置控制电路板，控制电路板上具有USB充电接口和电路板通信接口，控制电路板上方设置无线通信天线，控制电路板通过通信接口经连接电缆连接浊度传感器，走线槽通过固定支撑夹固定连接在浮球的下半球体内，浊度传感器上端以及连接电缆均设在走线槽内部，浊度传感器下端向下延伸在进水部分内，在进水部分的相面对的两侧上各开一个漏水口；在浊度传感器的壳体下端延伸有半圆柱管脚和L型直角管脚，在所述壳体以及半圆柱管脚和L型直角管脚内部设置光学测量系统，光学测量系统包括LED驱动和超声波控制电路、LED灯、抛物面镜、透镜、滤光片、光电接收器和光发射器窗口玻璃，在所述壳体的底面中间位置处嵌有第二光发射器窗口玻璃，第二光发射器窗口玻璃的正上方有LED灯，LED灯经LED控制线连接驱动和超声波控制电路，在半圆柱管脚的管壁上嵌有光电接收玻璃窗口，在半圆柱管脚的内部设置透镜、滤光片和光电接收器，透镜靠近且平行面对着第一光电接收玻璃窗口，在透镜和光电接收器之间平行放置滤光片，光电接收器的光轴和LED灯的光轴成90度交角；在L型直角管脚的竖直管脚和水平管脚的管壁外侧面上均有振动膜和压盖，L型直角管脚的竖直管脚和水平管脚的内部均设有一个位于振动膜旁侧的超声波发生器，所述竖直管脚上的振动膜、压盖在第一光电接收玻璃窗口正旁侧，所述水平管脚上的振动膜、压盖在第二光发射器窗口玻璃的正下方，所述LED驱动和超声波控制电路、USB充电接口、光电接收器分别连接控制电路板。In order to achieve the above-mentioned purpose, the technical solution adopted by the wireless sensor network node device for detecting the turbidity of fishpond water quality in the utility model is: comprising a floating ball floating in the water and a water inlet fixedly connected to the bottom of the floating ball and submerged in the water In the upper hemisphere of the floating ball, a control circuit board is installed. The control circuit board has a USB charging interface and a circuit board communication interface. A wireless communication antenna is arranged above the control circuit board. The control circuit board is connected to the turbidity sensor through the communication interface through a connecting cable. , the wiring trough is fixedly connected to the lower hemisphere of the floating ball through a fixed support clip, the upper end of the turbidity sensor and the connecting cable are located inside the wiring trough, the lower end of the turbidity sensor extends downwards in the water inlet part, and in the water inlet part A water leakage port is respectively opened on the opposite sides of the turbidity sensor; there are semi-cylindrical pins and L-shaped right-angle pins extending from the lower end of the housing of the turbidity sensor. An optical measurement system is arranged inside the foot, and the optical measurement system includes LED driving and ultrasonic control circuits, LED lamps, parabolic mirrors, lenses, optical filters, photoelectric receivers and light transmitter window glass, and is embedded in the middle of the bottom surface of the housing. There is a second light emitter window glass, and there is an LED light directly above the second light emitter window glass. The LED light is connected to the drive and ultrasonic control circuit through the LED control line, and a photoelectric receiving glass is embedded on the tube wall of the semi-cylindrical pin. A window, a lens, a filter and a photoelectric receiver are arranged inside the semi-cylindrical pin, the lens is close to and parallel to the first photoelectric receiving glass window, and a filter is placed in parallel between the lens and the photoelectric receiver, and the photoelectric receiving The optical axis of the device and the optical axis of the LED light form an angle of 90 degrees; there are vibrating membranes and glands on the outer surface of the tube wall of the vertical pin and the horizontal pin of the L-shaped right-angle pin, and the L-shaped right-angle pin Both the vertical pins and the horizontal pins are provided with an ultrasonic generator located on the side of the vibrating membrane, and the vibrating membrane on the vertical pins is pressed on the side of the first photoelectric receiving glass window. The vibrating film on the horizontal pin is covered directly under the window glass of the second light emitter, and the LED drive and ultrasonic control circuit, USB charging interface, and photoelectric receiver are respectively connected to the control circuit board.

本实用新型与已有方法和技术相比，具有如下优点：Compared with existing methods and technologies, the utility model has the following advantages:

1、本实用新型固定在鱼塘的目标水域之后即可开始实施监测，使用非常方便。1. After the utility model is fixed in the target water area of the fish pond, the monitoring can be started, and it is very convenient to use.

2、本实用新型结构小巧、便携、防水，其内部的控制器具有体积小、功耗低及电路简单等优点。2. The utility model is compact in structure, portable and waterproof, and its internal controller has the advantages of small volume, low power consumption and simple circuit.

3、本实用新型采用WSN技术，既减少了人力的成本，又减少了布线等的麻烦，且具有很强的实时性。养殖户可以实时的记录目标水域的水质浊度瞬时值，同时可以记录目标水域水质浊度的历史值，方便分析以及采取相应的措施。3. The utility model adopts WSN technology, which not only reduces the cost of manpower, but also reduces the trouble of wiring, etc., and has strong real-time performance. Farmers can record the instantaneous value of water quality turbidity in the target water area in real time, and at the same time record the historical value of water quality turbidity in the target water area to facilitate analysis and take corresponding measures.

4、本实用新型采用锂电池供电，并且提供了USB供电接口，可以在任意时刻给装置供电和给锂电池充电，有效保证了装置的工作时间，使其具备更强的续航能力。4. The utility model is powered by a lithium battery and provides a USB power supply interface, which can supply power to the device and charge the lithium battery at any time, effectively ensuring the working time of the device and making it have a stronger battery life.

5、本实用新型利用浮球的原理，使得装置被抛入水后能轻松的在水面漂浮，并且能够使天线的位置始终处于水平面的上方，以此保证无线通信的良好。5. The utility model utilizes the principle of the floating ball, so that the device can easily float on the water surface after being thrown into the water, and the position of the antenna can always be above the water level, so as to ensure good wireless communication.

附图说明Description of drawings

图1是本实用新型用于检测鱼塘水质浊度的无线传感网络节点装置的使用状态示意图；Fig. 1 is a schematic diagram of the use state of the wireless sensor network node device for detecting fishpond water quality turbidity of the utility model;

图2是图1中主体装置2的放大的立体结构图；FIG. 2 is an enlarged three-dimensional structure diagram of the main body device 2 in FIG. 1;

图3是图2中浊度传感器9的放大的外形立体图； Fig. 3 is the enlarged outline perspective view of turbidity sensor 9 in Fig. 2;

图4是图2中浊度传感器9的放大的内部结构主视图；Fig. 4 is the enlarged internal structure front view of the turbidity sensor 9 in Fig. 2;

图5是图2中控制电路板5的内部结构及外部连接图；Fig. 5 is the internal structure and external connection diagram ofcontrol circuit board 5 in Fig. 2;

附图中各部件的序号和名称：1：桩；2：主体装置；3：弹性锚缆；4：上半球体；5：控制电路板；6：通信天线；7：连接电缆；8：走线槽；9：浊度传感器；10：进水部分；11：固定支撑夹；12：USB充电接口；13：电路板通信接口；14：生料带；15：下半球体；16：漏液口；17：水密接插件；18：壳体；19：半圆柱管脚；20：L型直角管脚；21：LED驱动和超声波控制电路；22：LED；23：抛物面镜；24：透镜；25：滤光片；26：光电接收器；27：光电接收器窗口玻璃；28：光发射器窗口玻璃；29：振动膜；30：压盖；31：超声波发生器；32：控制线；33：光电接收器数据线。The serial number and name of each component in the attached drawings: 1: pile; 2: main device; 3: elastic anchor cable; 4: upper hemisphere; 5: control circuit board; 6: communication antenna; 7: connecting cable; 8: walking Wire slot; 9: Turbidity sensor; 10: Water inlet; 11: Fixed support clip; 12: USB charging interface; 13: Circuit board communication interface; 14: Raw material belt; 15: Lower hemisphere; 16: Leakage 17: watertight connector; 18: shell; 19: semi-cylindrical pin; 20: L-shaped right-angle pin; 21: LED drive and ultrasonic control circuit; 22: LED; 23: parabolic mirror; 24: lens; 25: optical filter; 26: photoelectric receiver; 27: window glass of photoelectric receiver; 28: window glass of light transmitter; 29: vibrating membrane; 30: gland; 31: ultrasonic generator; 32: control line; 33 : Photoelectric receiver data line.

具体实施方式Detailed ways

参见图1，本实用新型包括主体装置2，主体装置2底部通过弹性锚缆3和桩1相连，使用时将桩1打进鱼塘目标水域里。主体装置2是由浮球和进水部分10连接组成，浮球单位体积的重量远小于水，能随着液位的变化漂浮在水中，进水部分10外形是方形的壳体状，浸没在水中，并固定连接于浮球底部。 Referring to Fig. 1, the utility model includes a main body device 2, and the bottom of the main body device 2 is connected to the pile 1 through anelastic anchor cable 3, and the pile 1 is driven into the target water area of the fish pond during use. The main device 2 is composed of a floating ball connected to the water inlet part 10. The weight per unit volume of the floating ball is much smaller than that of water, and can float in the water with the change of the liquid level. The shape of the water inlet part 10 is a square shell shape, which is immersed in In the water, and fixedly connected to the bottom of the float. the

参见图2，浮球由上半球体4和下半球体15对合而成，上半球体4和下半球体15采用螺纹连接，上半球体4为可拆卸，下半球体15比上半球体4重。在上半球体4和下半球体的接合处缠绕生料带14，生料带14由是聚四氟乙烯制成，具有无毒、无味、优良的密封性、绝缘性、耐腐性等特点。将生料带14用于连接处，增强了连接处的密闭性，避免了漏水的隐患。Referring to Fig. 2, the floating ball is formed by combining the upper hemisphere 4 and the lower hemisphere 15, the upper hemisphere 4 and the lower hemisphere 15 are connected by threads, the upper hemisphere 4 is detachable, and the lower hemisphere 15 is larger than the upper hemisphere. 4 heavy. Wrap the raw material belt 14 at the junction of the upper hemisphere 4 and the lower hemisphere. The raw material belt 14 is made of polytetrafluoroethylene, which has the characteristics of non-toxic, tasteless, excellent sealing, insulation, and corrosion resistance. . The raw material belt 14 is used for the connection, which enhances the airtightness of the connection and avoids the hidden danger of water leakage.

在上半球体4内设置控制电路板5，控制电路板5上具有USB充电接口12和电路板通信接口13，控制电路板5上方设置无线通信天线6，使无线通信天线6尽量靠近上半球体4的顶部，通过弹性锚缆3使通信天线6的位置始终处于水平面的上方，以此保证无线通信质量的良好。使用者只需打开上半球体4即可通过USB充电接口12处给装置供电和锂电池充电，保证该装置的续航能力。控制电路板5通过电路板5上的通信接口13经连接电缆7连接浊度传感器9，对浊度传感器9供电和通信。走线槽8通过固定支撑夹11固定连接在下半球体15内，浊度传感器9的上端以及连接电缆7均安装在走线槽8内部，浊度传感器9的下端向下延伸，伸在进水部分10内。在进水部分10的相面对的两侧上各开一个漏水口16，实现了待测水质的流通性，同时在这两个漏水口16都加装了不锈钢过滤网，防止鱼塘里的水草或淤泥等在进水部分10里面沉淀。Acontrol circuit board 5 is arranged in the upper hemisphere 4, and aUSB charging interface 12 and a circuit board communication interface 13 are arranged on thecontrol circuit board 5, and a wireless communication antenna 6 is arranged above thecontrol circuit board 5, so that the wireless communication antenna 6 is as close as possible to the upper hemisphere 4, the position of the communication antenna 6 is always above the horizontal plane through theelastic anchor cable 3, so as to ensure the good quality of wireless communication. The user only needs to open the upper hemisphere 4 to supply power to the device and charge the lithium battery through theUSB charging interface 12 to ensure the battery life of the device. Thecontrol circuit board 5 is connected to the turbidity sensor 9 through the communication interface 13 on thecircuit board 5 via the connecting cable 7, and supplies power and communicates with the turbidity sensor 9. The wiring trough 8 is fixedly connected in the lower hemisphere 15 through the fixed support clip 11. The upper end of the turbidity sensor 9 and the connecting cable 7 are installed inside the wiring trough 8. in section 10. A water leakage port 16 is respectively opened on the opposite sides of the water inlet part 10 to realize the flowability of the water quality to be measured. At the same time, the two water leakage ports 16 are equipped with stainless steel filter screens to prevent water leakage in the fish pond. Aquatic plants or silt etc. settle in the water inlet part 10 inside.

参见图3，浊度传感器9外部是壳体18，壳体18上端和连接电缆7之间设有水密接插件17，壳体18下端延伸有两个管脚，分别是半圆柱管脚19和L型管脚20。Referring to Fig. 3, the exterior of the turbidity sensor 9 is ahousing 18, and awatertight connector 17 is provided between the upper end of thehousing 18 and the connecting cable 7, and two pins extend from the lower end of thehousing 18, which aresemi-cylindrical pins 19 and L-shapedpin 20.

参见图4，在壳体18以及半圆柱管脚19和L型直角管脚20内部设置光学测量系统，光学测量系统包括LED驱动和超声波控制电路21、LED灯22、抛物面镜23、透镜24、滤光片25、光电接收器26和光发射器窗口玻璃27、28。在壳体18的底面中间位置处嵌了光发射器窗口玻璃28，在光发射器窗口玻璃28的正上方是抛物面镜23和LED灯22，抛物面镜23保证了光线更加集中，LED灯22经LED控制线32连接驱动和超声波控制电路21，LED灯22即光发射器。透镜24使接收的光汇聚，滤光片25避免了鱼塘里其他光源的干扰。 Referring to Fig. 4, inhousing 18 andsemi-cylindrical pin 19 and L-type right-angle pin 20 interiors, optical measurement system is set, and optical measurement system comprises LED driving andultrasonic control circuit 21,LED lamp 22,parabolic mirror 23, lens 24,Optical filter 25 ,photoreceiver 26 and lightemitter window glass 27 , 28 . A lightemitter window glass 28 is embedded in the middle position of the bottom surface of thehousing 18, and directly above the lightemitter window glass 28 are aparabolic mirror 23 and anLED lamp 22. Theparabolic mirror 23 ensures that the light is more concentrated, and theLED lamp 22 passes through TheLED control line 32 is connected to the driving andultrasonic control circuit 21, and theLED lamp 22 is the light emitter. The lens 24 converges the received light, and theoptical filter 25 avoids the interference of other light sources in the fish pond. the

在半圆柱管脚19的管壁上嵌有光电接收玻璃窗口27，在半圆柱管脚19的内部设置透镜24，滤光片25和光电接收器26，透镜24靠近且平行面对着光电接收玻璃窗口27，在透镜24和光电接收器26之间平行放置滤光片25。光电接收器26的光轴和光发射器（LED灯22）的光轴成90度交角。A photoelectric receivingglass window 27 is embedded on the tube wall of thesemicylindrical pin 19, and a lens 24, anoptical filter 25 and aphotoelectric receiver 26 are arranged inside thesemicylindrical pin 19, and the lens 24 is close to and faces the photoelectric receiving in parallel. Aglass window 27 , afilter 25 is placed in parallel between the lens 24 and thephotoreceiver 26 . The optical axis of thephotoelectric receiver 26 and the optical axis of the light emitter (LED lamp 22 ) form an angle of 90 degrees.

在L型直角管脚20的竖直管脚和水平管脚的管壁外侧面上均有振动膜29和压盖30，振动膜29用于产生振动，在L型直角管脚20的竖直管脚和水平管脚的内部均设有一个超声波发生器31，超声波发生器31靠近且正对着振动膜29和压盖30，位于振动膜29旁侧。竖直管脚上的振动膜29、压盖30与光电接收玻璃窗口27平行且面对，即竖直管脚上的振动膜29、压盖30在光电接收玻璃窗口27正旁侧。水平管脚上的振动膜29、压盖30与光发射器窗口玻璃28平行且面对，即水平管脚上的振动膜29、压盖30在光发射器窗口玻璃28的正下方。Vibratingfilm 29 andgland 30 are all arranged on the tube wall outer surface of the vertical pin of L-shaped right-angledpin 20 and the tube wall of horizontal pin, and vibratingfilm 29 is used for generating vibration, and on the vertical pin of L-shaped right-angledpin 20 Anultrasonic generator 31 is provided inside the pin and the horizontal pin, and theultrasonic generator 31 is close to and facing the vibratingmembrane 29 and thegland 30 , and is located beside the vibratingmembrane 29 . The vibratingmembrane 29 and thegland 30 on the vertical pins are parallel to and facing the photoelectric receivingglass window 27 , that is, the vibratingmembrane 29 and thegland 30 on the vertical pins are right beside the photoelectric receivingglass window 27 . The vibratingmembrane 29 andgland 30 on the horizontal pins are parallel to and facing the lightemitter window glass 28 , that is, the vibratingmembrane 29 and thegland 30 on the horizontal pins are directly below the lightemitter window glass 28 .

参见图5，控制电路5包括充电电路、锂电池、稳压电路、键入模块、EFM32单片机、显示模块、无线发送模块、AD转换模块、滤波模块和电流转换放大电路等。LED驱动和超声波控制电路21、USB充电接口12、光电接收器26分别连接控制电路板5。外部的USB充电接口12经充电电路连接锂电池，锂电池连接稳压电路，EFM32单片机分别连接稳压电路、键入模块、无线发送模块、显示模块、AD转换模块以及外部的驱动和超声波控制电路21，无线发送模块连接外部的通信天线6，稳压电路还分别连接超声波控制电路21和光电接收器26，AD转换模块依次经滤波模块、电流转换放大电路连接、光电接收器数据线33连接光电接收器26。LED控制线32、光电接收器数据线33以及供电电源线均通过连接电缆7和控制电路5相连。显示模块采用的是液晶屏，无线发送模块采用的是TI公司的CC2420，其通信基于Zigbee协议，通信安全稳定，EFM32单片机和无线发送模块CC2420之间通过SPI接口连接，保证了通信的快速稳定。锂电池经稳压模块后给单片机和其他各个模块供电，当锂电池的储电量为低时，可以将此信息通过无线通信网络告知给值班人员，要求及时充电，在充电时，可以采用移动充电宝通过USB口进行充电，使用非常方便，同时EFM32是一款功耗很低的MCU，这样使整个装置的续航能力得到保障。Referring to Fig. 5, thecontrol circuit 5 includes a charging circuit, a lithium battery, a voltage stabilizing circuit, a key-in module, an EFM32 single-chip microcomputer, a display module, a wireless sending module, an AD conversion module, a filter module, and a current conversion amplifier circuit. The LED drive andultrasonic control circuit 21 , theUSB charging interface 12 , and thephotoelectric receiver 26 are respectively connected to thecontrol circuit board 5 . The externalUSB charging interface 12 is connected to the lithium battery through the charging circuit, the lithium battery is connected to the voltage stabilizing circuit, and the EFM32 single-chip microcomputer is respectively connected to the voltage stabilizing circuit, input module, wireless transmission module, display module, AD conversion module and external drive andultrasonic control circuit 21 , the wireless sending module is connected to the external communication antenna 6, and the voltage stabilizing circuit is also connected to theultrasonic control circuit 21 and thephotoelectric receiver 26 respectively, and the AD conversion module is connected to the photoelectric receiver through the filter module, the current conversion amplifier circuit, and the photoelectricreceiver data line 33.device 26. TheLED control line 32 , the photoelectricreceiver data line 33 and the power supply line are all connected to thecontrol circuit 5 through the connection cable 7 . The display module adopts LCD screen, and the wireless transmission module adopts TI's CC2420. Its communication is based on the Zigbee protocol, and the communication is safe and stable. The connection between the EFM32 single-chip microcomputer and the wireless transmission module CC2420 is through the SPI interface, which ensures the fast and stable communication. The lithium battery supplies power to the single-chip microcomputer and other modules after passing through the voltage stabilizing module. When the storage capacity of the lithium battery is low, this information can be notified to the on-duty personnel through the wireless communication network, and charging is required in time. When charging, mobile charging can be used The treasure is charged through the USB port, which is very convenient to use. At the same time, EFM32 is an MCU with very low power consumption, so that the battery life of the entire device is guaranteed.

当工作人员打开了电源开关，装置处于工作状态，EFM32单片机初始化后，用户需要通过按键设定当前的时间和本机的ID，并通过液晶屏显示出来。EFM32单片机控制LED驱动和超声波控制电路21驱动LED灯22产生一束光，光线进入水中后，悬浮物产生的部分散射光经光电接收玻璃窗口27、透镜24和滤光片25，由光电接收器26接收，电流转换放大电路通过光电接收器数据线33将光电接收器26采集的电流信号形式的浊度信号转换为电压信号并对该电压信号进行放大处理生成浊度电压信号。滤波电路对浊度信号进行滤波，之后通过AD转换变成数字信号后传入EFM32单片机。EFM32单片机在接收到浊度值之后，读取内部RTC的当前时间和本机的ID，之后将这三组数据传给无线发送模块CC2420发送给接收节点，接收节点可以接收多台发射极点的数据，并且将接收到的数据通过RS-485传给上位机，每个装置对应一个ID，这样就实现了对一个或者多个鱼塘浊度的实时监控。同时，单片机控制超声波发生器31产生超声波，通过超声波振荡使光电接收玻璃窗口的玻璃上的污垢脱落，直接掉入鱼塘水中，与传感器完全分离。此外，工作人员可以通过电路上的键入模块设定报警阈值、查询和删除历史数据。当检测到的浊度值超过设定的报警阈值时，无线发送模块不仅将浊度值、时间和ID发送出去，同时还发送了报警信号，提醒养殖户要采取措施了。When the staff turns on the power switch, the device is in the working state, and after the EFM32 microcontroller is initialized, the user needs to set the current time and the ID of the machine through the buttons, and display them on the LCD screen. EFM32 microcontroller controls the LED drive andultrasonic control circuit 21 to drive theLED lamp 22 to generate a beam of light. After the light enters the water, part of the scattered light produced by the suspended matter passes through the photoelectric receivingglass window 27, lens 24 andfilter 25, and is received by the photoelectric receiver. 26 receiving, the current conversion amplifier circuit converts the turbidity signal in the form of current signal collected by thephotoelectric receiver 26 into a voltage signal through the photoelectricreceiver data line 33 and amplifies the voltage signal to generate a turbidity voltage signal. The filter circuit filters the turbidity signal, and then converts it into a digital signal through AD conversion and then transmits it to the EFM32 microcontroller. After receiving the turbidity value, the EFM32 single-chip microcomputer reads the current time of the internal RTC and the ID of the machine, and then sends these three sets of data to the wireless sending module CC2420 to send to the receiving node, and the receiving node can receive data from multiple transmitter poles , and transmit the received data to the upper computer through RS-485, each device corresponds to an ID, thus realizing the real-time monitoring of the turbidity of one or more fish ponds. Simultaneously, the single-chip microcomputer controls theultrasonic generator 31 to generate ultrasonic waves, so that the dirt on the glass of the photoelectric receiving glass window comes off through ultrasonic oscillation, directly falls into the fish pond water, and is completely separated from the sensor. In addition, the staff can set the alarm threshold, query and delete historical data through the input module on the circuit. When the detected turbidity value exceeds the set alarm threshold, the wireless sending module not only sends out the turbidity value, time and ID, but also sends an alarm signal to remind farmers to take measures.

Claims (3)

1. radio sensing network node device for detection of fish pond water quality turbidity, it is characterized in that: comprise the ball float that swims in the water and be fixedly connected on the ball float bottom and be immersed in water inlet portion (10) in the water, in first spheroid (4) of ball float, control circuit board (5) is set, have USB charging inlet (12) and circuit board communication interface (13) on the control circuit board (5), control circuit board (5) top arranges radio antenna (6), control circuit board (5) connects turbidity transducer (9) by communication interface (13) through stube cable (7), trough (8) is fixedly connected in second spheroid (15) of ball float by fixed support folder (11), turbidity transducer (9) upper end and stube cable (7) all are located at trough (8) inside, turbidity transducer (9) lower end extends in downwards in the water inlet portion (10), respectively opens a scupper (16) on the both sides of facing mutually of water inlet portion (10); Housing (18) lower end in turbidity transducer (9) is extended with semicolumn pin (19) and L-type right angle pin (20), at described housing (18) and semicolumn pin (19) and L-type right angle pin (20) inside optical measuring system is set, optical measuring system comprises that LED drives and ultrasonic control circuit (21), LED lamp (22), paraboloidal mirror (23), lens (24), optical filter (25), photelectric receiver (26) and optical transmitting set window glass (27,28), place, centre position, bottom surface at described housing (18) is embedded with the second optical transmitting set window glass (28), directly over the second optical transmitting set window glass (28) LED lamp (22) is arranged, LED lamp (22) connects driving and ultrasonic control circuit (21) through LED control line (32), tube wall at semicolumn pin (19) is embedded with the first photoelectricity reception glass window (27), in the inside of semicolumn pin (19) lens (24) are set, optical filter (25) and photelectric receiver (26), lens (24) near and parallel surface receive glass window (27) facing to the first photoelectricity, parallel placement optical filter (25) between lens (24) and photelectric receiver (26), the optical axis of the optical axis of photelectric receiver (26) and LED lamp (22) become the 90 degree angles of cut; On the tube wall lateral surface of the vertical pin of L-type right angle pin (20) and horizontal pin, vibrating membrane (29) and gland (30) are arranged all, the vertical pin of L-type right angle pin (20) and the inside of horizontal pin are equipped with a ultrasonic generator (31) that is positioned at vibrating membrane (29) side, vibrating membrane (29) on the described vertical pin, gland (30) receives the positive side of glass window (27) at the first photoelectricity, vibrating membrane (29) on the described horizontal pin, gland (30) is under the second optical transmitting set window glass (28), and described LED drives and ultrasonic control circuit (21), USB charging inlet (12), photelectric receiver (26) connects respectively control circuit board (5).

2. a kind of radio sensing network node device for detection of fish pond water quality turbidity according to claim 1, it is characterized in that: control circuit (5) comprises charging circuit, lithium battery, EFM32 single-chip microcomputer and wireless sending module, USB charging inlet (12) connects lithium battery through charging circuit, lithium battery connects mu balanced circuit, the EFM32 single-chip microcomputer connects respectively mu balanced circuit, key in module, wireless sending module, display module, AD modular converter and driving and ultrasonic control circuit (21), wireless sending module connects communication antenna (6), mu balanced circuit also connects respectively ultrasonic control circuit (21) and photelectric receiver (26), and the AD modular converter is successively through filtration module, the current conversion amplifying circuit connects, photelectric receiver data line (33) connects photelectric receiver (26).

3. a kind of radio sensing network node device for detection of fish pond water quality turbidity according to claim 1, it is characterized in that: water inlet portion (10) bottom links to each other with stake (1) by elasticity anchor hawser (3), and described stake (1) is thrown in the target waters, fish pond.

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