CN203870096U - Wireless water quality ammonia nitrogen monitoring device - Google Patents

Wireless water quality ammonia nitrogen monitoring device Download PDF

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Publication number
CN203870096U
CN203870096U CN201420029400.0U CN201420029400U CN203870096U CN 203870096 U CN203870096 U CN 203870096U CN 201420029400 U CN201420029400 U CN 201420029400U CN 203870096 U CN203870096 U CN 203870096U
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module
ammonia nitrogen
water quality
zigbee
data
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CN201420029400.0U
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江冰
薛晓青
王秀芝
胡钢
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Hohai University Changzhou Campus
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Hohai University Changzhou Campus
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Abstract

The utility model discloses a wireless water quality ammonia nitrogen monitoring device. The device comprises at least one sensor node and a convergence node connected with the at least one sensor node through a ZigBee network, wherein each sensor node comprises a water quality ammonia nitrogen sensor, a signal conditioning module, a processing module and a first ZigBee module; each water quality ammonia nitrogen sensor is used for acquiring water quality ammonia nitrogen parameter data; each signal conditioning module is used for receiving the ammonia nitrogen parameter data acquired by each water quality ammonia nitrogen sensor and performing amplification conversion on the data; each processing module is used for receiving the data conditioned by the signal conditioning module and transmitting the data to each first ZigBee module through serial communication; the convergence node comprises a second ZigBee module, a control module, a GPRS (general packet radio service) module and a monitoring terminal; the second ZigBee module is used for receiving the data sent by each first ZigBee module through the ZigBee network; the control module is used for receiving the data transmitted by the second ZigBee module and transmitting the data to the GPRS module through serial communication; the GPRS module is used for transmitting the received data to the monitoring terminal through a GPRS network. The device can perform remote and real-time monitoring on the change of water quality ammonia nitrogen parameter characteristics.

Description

A kind of wireless Water quality ammonia nitrogen monitoring device
Technical field
The utility model relates to a kind of water monitoring device, relates in particular to a kind of wireless Water quality ammonia nitrogen monitoring device.
Background technology
Water resource is a kind of important basic natural resources, is one of controlled factor of ecologic environment, is again strategic economic resources simultaneously, is the organic component of a national overall national strength.Therefore, water conservation is the most important thing of environmental protection work.Protection water environment, improvement water pollute, and water quality monitoring is absolutely necessary and primarily works, and are effectively improvement and technical support and the guarantee of controlling water pollution.Strengthen water resources management, protection water environment, realizes water quality online auto monitoring own through becoming matters vital to national well-being and the people's livelihood.Yet, in long-term use, to find, wireless water monitoring device in the market generally only can sample detection, and equipment is complicated and expensive, is not suitable for applying of water quality monitoring.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of can be long-range, the wireless Water quality ammonia nitrogen monitoring device of Real-Time Monitoring water quality.
For solving the problems of the technologies described above, the utility model provides a kind of wireless Water quality ammonia nitrogen monitoring device, comprises at least one sensor node and the aggregation node being connected by ZigBee-network with described sensor node;
Described sensor node comprises Water quality ammonia nitrogen sensor, signal condition module, processing module and a ZigBee module;
Described Water quality ammonia nitrogen sensor, for gathering Water quality ammonia nitrogen supplemental characteristic;
Described signal condition module, the ammonia nitrogen supplemental characteristic gathering for receiving described Water quality ammonia nitrogen sensor, and data are amplified to conversion;
Described processing module, for receiving the data after described signal condition module conditioning, and is transferred to a described ZigBee module by data by serial communication;
Described aggregation node comprises the 2nd ZigBee module, control module, GPRS module and monitoring terminal;
Described the 2nd ZigBee module, receives the data that send from a described ZigBee module by ZigBee-network;
Described control module, for receiving the data of described the 2nd ZigBee module transmission, and is transferred to described GPRS module by data by serial communication;
Described GPRS module, for by GPRS network by the data transmission receiving to monitoring terminal.
Also comprise supply module, be used to described Water quality ammonia nitrogen sensor, described processing module, described control module, a described ZigBee module and described the 2nd ZigBee module for power supply.
Described signal condition module comprises LM358 dual operational amplifier.
Described processing module comprises ATmega16L-8PI single-chip microcomputer.
Described control module comprises ATmega16L-8PI single-chip microcomputer.
The beneficial effects of the utility model are: the utility model is by being combined with the ZigBee module of short range transmission with the GPRS module of long-distance transmissions, overcome traditional water quality monitoring system real-time poor, a little less than remote message transmission capability, controlled poor, the shortcoming such as cost dearly, can be flexible Water quality ammonia nitrogen parameter be monitored in real time, again can be in time by data long-distance transmissions to monitoring terminal, this is wireless, and Water quality ammonia nitrogen monitoring device data transmission security is reliable, and equipment volume requires little, without wiring, greatly reduce construction costs and operating maintenance cost.
Accompanying drawing explanation
Fig. 1 is system chart of the present utility model;
Fig. 2 is the circuit theory diagrams of signal condition module shown in Fig. 1;
Fig. 3 is the circuit theory diagrams of processing module shown in Fig. 1 and control module;
Fig. 4 is the expansion interface schematic diagram of control module shown in Fig. 3;
Fig. 5 is the power circuit principle figure of signal condition module shown in Fig. 1 and GPRS module;
Fig. 6 is the power circuit principle figure of Water quality ammonia nitrogen sensor, processing module, control module, a ZigBee module and the 2nd ZigBee module.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details: shown in Figure 1, a kind of wireless Water quality ammonia nitrogen monitoring device of the present utility model, comprises at least one sensor node 2 and the aggregation node 4 being connected by ZigBee-network with sensor node 2;
Sensor node 2 comprises Water quality ammonia nitrogen sensor 20, signal condition module 22, processing module 24 and a ZigBee module 26;
Water quality ammonia nitrogen sensor 20, for gathering Water quality ammonia nitrogen supplemental characteristic;
Described signal condition module 22, the ammonia nitrogen supplemental characteristic gathering for receiving Water quality ammonia nitrogen sensor 20, and data are amplified to conversion;
Processing module 24, for the data after 22 conditionings of receiving signal reason module, and is transferred to a ZigBee module 26 by data by serial communication;
Aggregation node 4 comprises the 2nd ZigBee module 40, control module 42, GPRS module 44 and monitoring terminal 46;
The 2nd ZigBee module 40, receives the data that send from a ZigBee module 26 by ZigBee-network;
Control module 42, for receiving the data of the 2nd ZigBee module 40 transmission, and is transferred to GPRS module 44 by data by serial communication;
GPRS module 44, for by GPRS network by the data transmission receiving to monitoring terminal 46.
Principle of the present utility model is: by adopting Water quality ammonia nitrogen sensor 20 monitoring Water quality ammonia nitrogen parameters, sensor node 2 sends to Water quality ammonia nitrogen parameter on aggregation node 4 by ZigBee-network, by aggregation node 4, by GPRS network, be transferred to monitoring terminal 46, the utility model, by the ZigBee module of short range transmission is combined with the GPRS module of long-distance transmissions, is realized the variation of Real-Time Monitoring Water quality ammonia nitrogen parameter characteristic.
Water quality ammonia nitrogen sensor in sensor node 2 20 forms data acquisition modules, and this Water quality ammonia nitrogen sensor 20 is NH61-A891 Water quality ammonia nitrogen sensors, variation that can Real-Time Monitoring Water quality ammonia nitrogen, have corrosion-resistant, stable performance and measuring accuracy advantages of higher.
Processing module 24 in sensor node 2 and the control module 42 in aggregation node 4 include ATmega16L-8PI single-chip microcomputer, 8 CMOS microcontrollers of low-power consumption of a kind of AVRRISC structure based on strengthening of this single-chip microcomputer.Due to its advanced instruction set and single clock cycle instruction time, the data throughput of ATmega16 is up to 1MIPS/ MHz, thereby can extenuate the contradiction of system between power consumption and processing speed, for many embedded Control application provide flexibly solution cheaply.Shown in Figure 3, what the processing module 24 in sensor node 2 and the control module 42 in aggregation node 4 were concrete is to consist of ATmega16L-8PI single-chip microcomputer and peripheral circuit thereof, wherein ATmega16L-8PI single-chip microcomputer can be realized the AD collection on 8 tunnels, conditioned signal is directly connected to No. 40 pins of ATmega16L-8PI single-chip microcomputer; On No. 9 pins of ATmega16L-8PI single-chip microcomputer, be connected to the resistance R of a 10k 1capacitor C with 10uF 6, resistance R 1and capacitor C 6after series connection, capacitor C 6another termination 5V power supply, resistance R 1other end ground connection, this peripheral circuit plays the effect of electrification reset, simultaneously in capacitor C 6a upper switch S in parallel 1, realize hand-reset function; Between No. 12 pins of ATmega16L-8PI single-chip microcomputer and No. 13 pins, be in series with the crystal oscillator Y of a 22.1184M 1, this crystal oscillator Y 1two ends be connected with respectively the capacitor C of a 33pF 7, C 12, this capacitor C 7, C 12other end ground connection, crystal oscillator Y 1and capacitor C 7, C 12the oscillating circuit forming, the work long-term, reliable, stable to whole circuit has very important significance, especially sleeping frequently, played very important effect in arouse machine processed; On No. 10 pins of ATmega16L-8PI single-chip microcomputer, connect 5V power supply, under connect the electric capacity of 0.1uF; The power supply that No. 30 pins of ATmega16L-8PI single-chip microcomputer are port A and A/D converter.While not using ADC, this pin should directly be connected with VCC, while using ADC, should be connected with VCC by a low-pass filter., control module 42 is used A/D, utilizes the inductance of 10mH and the electric capacity of two 0.1uF to realize the function of low-pass filtering; No. 31 pins and No. 11 pin ground connection of ATmega16L-8PI single-chip microcomputer; The simulation benchmark input pin that No. 32 pins of Tmega16L-8PI single-chip microcomputer are A/D, direct ground connection, need be by the capacitor C of 10uF 8ground connection.Again referring to shown in 4, the expansion interface of the control module 42 in aggregation node 4 is RS232 serial communications that formed with MAX232, be used for connecting GPRS DTU wireless data transfer module, No. 15 pin ground connection of this expansion interface, connect the respectively capacitor C of a 0.1uF of No. 1 pin and No. 3 pins, No. 4 pins and No. 5 pins 2, C 4, the capacitor C of a 0.1uF of No. 2 pin series connection 3after connect positive source, the capacitor C of a 0.1uF of No. 6 pins series connection 5rear ground connection, No. 7 pins and No. 8 pins connect respectively No. 2 pins and No. 3 pins of a RS232, and No. 5 pins of RS232, No. 10 pins and No. 11 pins ground connection all; In addition, this expansion interface No. 9 pins and No. 10 pins are connected to respectively No. 14 pins and No. 15 pins of ATmega16L-8PI single-chip microcomputer.
The one ZigBee module 26 of sensor node 2 and the 2nd ZigBee module 40 of aggregation node all adopt radio frequency chip CC2530, and this chip data processing accuracy is high, efficiency is high, has guaranteed degree of accuracy and the real-time of Wireless Data Transmission.
The EDAO-3360 GPRS DTU wireless data transfer module that GPRS module 44 adopts Changsha Yi Dao electronic measuring instrument company limited to produce, built-in 8 flush bonding processors of this DTU, embedded complete ICP/IP protocol stack, 1 RS232 serial ports (terminal interface) is provided simultaneously, its the inner latest version MG323 of Huawei wireless module technical grade main control chip that adopts, work that can long time stability, antijamming capability is strong, easy to use.
Shown in Figure 2, the signal condition module 22 in sensor node 2, is the signal condition module based on LM358.NH61-A891 Water quality ammonia nitrogen sensor, the current signal of the 4-20mA of output, the voltage signal that changes into 0 ~ 5V through signal condition module just can be passed to single-chip microcomputer.Resistance R 7play I/V conversion sample resistance, current signal is at R 7corresponding voltage of upper generation, i.e. the corresponding 0.04V of 4mA, the corresponding 0.2V of 20mA, is then undertaken, after 25 times of amplifications, just becoming the voltage signal of corresponding 1-5V by LM358.Resistance R 8play check and correction effect, regulate R 8while making input current signal be 20mA, be output as 5V.
Shown in Fig. 5, Fig. 6, Water quality ammonia nitrogen sensor 20 in the utility model, processing module 24, control module 42, a ZigBee module 26 and the 2nd ZigBee module 42 all need to provide 5v voltage, signal condition module 22 need provide positive and negative 12V voltage, GPRS module 44 also needs to provide 12V voltage, therefore adopt transformer T 1transformation, is down to the supply voltage of 220V to positive and negative 16V, adopts LM7812 chip be depressurized to-12V of general+16V voltage stabilizing, adopts LM7912 chip be depressurized to-12V of general+16V voltage stabilizing, adopts LM7805 chip that 12V is depressurized to 5V voltage stabilizing.
The foregoing is only better embodiment of the present utility model; protection domain of the present utility model is not limited with above-mentioned embodiment; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection domain of recording in claims.

Claims (5)

1. a wireless Water quality ammonia nitrogen monitoring device, is characterized in that: comprise at least one sensor node (2) and the aggregation node (4) being connected by ZigBee-network with described sensor node (2);
Described sensor node (2) comprises Water quality ammonia nitrogen sensor (20), signal condition module (22), processing module (24) and a ZigBee module (26);
Described Water quality ammonia nitrogen sensor (20), for gathering Water quality ammonia nitrogen supplemental characteristic;
Described signal condition module (22), the ammonia nitrogen supplemental characteristic gathering for receiving described Water quality ammonia nitrogen sensor (20), and data are amplified to conversion;
Described processing module (24), for receiving the data after described signal condition module (22) conditioning, and is transferred to a described ZigBee module (26) by data by serial communication;
Described aggregation node (4) comprises the 2nd ZigBee module (40), control module (42), GPRS module (44) and monitoring terminal (46);
Described the 2nd ZigBee module (40), receives the data that send from a described ZigBee module (26) by ZigBee-network;
Described control module (42), for receiving the data of described the 2nd ZigBee module (40) transmission, and is transferred to described GPRS module (44) by data by serial communication;
Described GPRS module (44), for by GPRS network by the data transmission receiving to monitoring terminal (46).
2. wireless Water quality ammonia nitrogen monitoring device according to claim 1, it is characterized in that: also comprise supply module (6), be used to described Water quality ammonia nitrogen sensor (20), described processing module (24), described control module (42), a described ZigBee module (26) and described the 2nd ZigBee module (40) power supply.
3. wireless Water quality ammonia nitrogen monitoring device according to claim 1, is characterized in that: described signal condition module (22) comprises LM358 dual operational amplifier.
4. wireless Water quality ammonia nitrogen monitoring device according to claim 1, is characterized in that: described processing module (24) comprises ATmega16L-8PI single-chip microcomputer.
5. wireless Water quality ammonia nitrogen monitoring device according to claim 1, is characterized in that: described control module (42) comprises ATmega16L-8PI single-chip microcomputer.
CN201420029400.0U 2014-01-17 2014-01-17 Wireless water quality ammonia nitrogen monitoring device Active CN203870096U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105158409A (en) * 2015-06-23 2015-12-16 中山欧麦克仪器设备有限公司 On-line ammonia-nitrogen monitor capable of realizing remote wireless transmission
CN109191819A (en) * 2018-09-28 2019-01-11 东南大学 A kind of multiple spot Monitoring And Analysis of The Quality system and method for monitoring and analyzing based on clustering algorithm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105158409A (en) * 2015-06-23 2015-12-16 中山欧麦克仪器设备有限公司 On-line ammonia-nitrogen monitor capable of realizing remote wireless transmission
CN109191819A (en) * 2018-09-28 2019-01-11 东南大学 A kind of multiple spot Monitoring And Analysis of The Quality system and method for monitoring and analyzing based on clustering algorithm

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