CN204270489U - A kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network - Google Patents
A kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network Download PDFInfo
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- CN204270489U CN204270489U CN201420805788.9U CN201420805788U CN204270489U CN 204270489 U CN204270489 U CN 204270489U CN 201420805788 U CN201420805788 U CN 201420805788U CN 204270489 U CN204270489 U CN 204270489U
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Abstract
The utility model discloses a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network, comprising: multiple Hydrological Data Acquisition device, and carry out communication by wireless between each Hydrological Data Acquisition device; Described Hydrological Data Acquisition device comprises: MCU unit, and the hydrology sensor group be connected with this MCU unit and from radio-cell; Described MCU unit is suitable for controlling hydrology sensor group and carries out acquisition and processing to corresponding hydrographic information, and by sending described hydrographic information from radio-cell to host computer; All kinds of hydrology sensor integration, in a Hydrological Data Acquisition device, can be given and obtain a complete hydrographic information, Hydrological Data Acquisition device low in energy consumption, by solar powered, long-term work can be distributed in wide severe power station.
Description
Technical field
The utility model relates to hydrologic monitoring field, particularly relates to a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network.
Background technology
Along with the develop rapidly with national economy that increases rapidly of China's population, the deficiency of water resource and the pollution of water environment have become day by day serious problem, cause have a strong impact on industry, life that is agriculture and people.
Check in from Chinese hydrographic information net, the water environment in Chinese watershed and place generally just measures water level and flow two hydrographic informations, and the kind of measurement data is less, comprehensively can not reflect the hydrographic information in each waters., there is time and effort consuming, monitoring range be little, monitoring periods is long, can not carry out on-line monitoring to water quality parameter in the method that the acquisition of traditional hydrographic information adopts instrument to operate in conjunction with artificial experience, is difficult to reflect in real time the drawbacks such as the dynamic change of water environment.The hydrographic information communication of employing universal serial bus, fieldbus needs to lay a large amount of cables, and difficult wiring, difficulty of construction are large, and circuit is easily damaged and burn into maintenance cost is high, monitoring range is limited.
Therefore, need to design a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network, with all kinds of hydrographic information of real-time remote monitoring as required, reach the object of each water area water-quality of Real-Time Monitoring.
Utility model content
The purpose of this utility model is to provide a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network, which solves and carries out comprehensive detection to hydrographic data, and detection data are sent to the technical matters of host computer by wireless network.
In order to solve the problems of the technologies described above, the utility model provides a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network, comprising: multiple Hydrological Data Acquisition device, and carries out communication by wireless between each Hydrological Data Acquisition device; Described Hydrological Data Acquisition device comprises: MCU unit, and the hydrology sensor group be connected with this MCU unit and from radio-cell; Described MCU unit is suitable for controlling hydrology sensor group and carries out acquisition and processing to corresponding hydrographic information, and by sending described hydrographic information from radio-cell to host computer.
In order to adapt to the Gather and input of analog quantity, and comprehensively reflect the hydrographic information in power station, described hydrology sensor group comprises some digital sensorses and analog sensor, and wherein digital sensors comprises: temperature sensor and turbidity transducer; Analog sensor comprises: platinum black conductance electrode sensor, dissolved oxygen sensor, PH electrode sensor; The output terminal of each digital sensors is connected with MCU unit respectively, and analog sensor is connected with the multi-channel input of multiway analog switch by a conditioning circuit module, and the output terminal of this multiway analog switch is connected with described MCU unit by A/D module.
In order to better realize Signal transmissions coupling, described conditioning circuit module comprises: be suitable for the first modulate circuit be connected with PH electrode sensor, be suitable for the second modulate circuit be connected with platinum black conductance electrode sensor, and be suitable for the 3rd modulate circuit that is connected with dissolved oxygen sensor; Wherein, the first modulate circuit comprises: the in-phase proportion computing circuit be connected with described PH electrode sensor, the subtraction circuit be connected with this in-phase proportion computing circuit; Second modulate circuit comprises: be suitable for the bipolar pulse output circuit producing described platinum black conductance electrode working sensor alternating voltage, and gathers the Full wave shape rectification circuit of platinum black conductance electrode sensor output voltage; 3rd modulate circuit comprises: two-stage in-phase proportion operational amplification circuit.
In order to the hydrographic information in the wide power station of measurement range, sensor assembly group is distributed in the wide power station of regional extent, in order to obtain the hydrographic information of concrete different test point; Described Hydrological Data Acquisition device also comprises: the locating module be connected with described MCU unit, and described locating module is suitable for obtaining described Hydrological Data Acquisition device current position information.
A large amount of power leads is laid in order to solve; difficult wiring, difficulty of construction are large; and the problem that circuit is easily damaged and burn into maintenance cost is high; described Hydrological Data Acquisition device also comprises power module; described power module comprises: solar panel; described solar panel is connected with chargeable lithium cell by charge controller, and the output terminal of this chargeable lithium cell is connected with DC-DC change-over circuit by a discharge protection circuit.
Optionally, in order to build wireless networking, described wireless module adopts ZigBee module, and namely each Hydrological Data Acquisition device carries out wireless networking by ZigBee module.
Technique scheme of the present utility model has the following advantages compared to existing technology: all kinds of hydrology sensor integration is in a Hydrological Data Acquisition device, a hydrographic information that acquisition is complete can be given, Hydrological Data Acquisition device low in energy consumption, by solar powered, long-term work wide severe power station can be distributed in; By wireless ad hoc network, Hydrological Data Acquisition device can add arbitrarily and can MANET, is transported in host computer by the hydrographic information collected, real-time processes and displays and record complete hydrographic information.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below basis specific embodiment and by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 shows the theory diagram of the multiparameter Reservoir Water Quality monitoring system based on wireless sensor network of the present utility model;
Fig. 2 shows the theory diagram of Hydrological Data Acquisition device;
Fig. 3 shows the circuit theory diagrams of the second modulate circuit;
Fig. 4 shows the theory diagram of power module in described Hydrological Data Acquisition device.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment
Fig. 1 shows the theory diagram of the multiparameter Reservoir Water Quality monitoring system based on wireless sensor network of the present utility model.
As shown in Figure 1, a kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network, comprising: multiple Hydrological Data Acquisition device, and carries out communication by wireless between each Hydrological Data Acquisition device; Described Hydrological Data Acquisition device comprises: MCU unit, and the hydrology sensor group be connected with this MCU unit and from radio-cell; Described MCU unit is suitable for controlling hydrology sensor group and carries out acquisition and processing to corresponding hydrographic information, and by sending described hydrographic information from radio-cell to host computer.
Wherein, described host computer is the control end of the wireless self-networking built by Hydrological Data Acquisition device, be responsible for issuing monitored instruction, process and storage hydrographic information, and final result is shown, for power station supvr provides complete hydrographic information in real time, its major function comprises real-time monitoring, historical query, automatic alarm.Real-time monitoring refers to network node when monitoring power station hydrographic information, the real-time display monitoring result of upper computer software, host computer shows with figure intuitively, and this contributes to make treatment measures in time according to hydrographic information real-time change to power station managerial personnel.Historical query refers to upper computer software by the hydrographic information of the Hydrological Data Acquisition device collection in network stored in the database of specifying, and power station managerial personnel as required, can check the data in database at any time.Automatic alarm refers in the process monitored hydrographic information, and by finding that hydrographic data is abnormal to the analysis of the hydrographic information collected, host computer will carry out alarm.
Concrete, described hydrology sensor group comprises some digital sensorses and analog sensor, and wherein digital sensors comprises: temperature sensor and turbidity transducer; Analog sensor comprises: platinum black conductance electrode sensor, dissolved oxygen sensor, PH electrode sensor;
The concrete signal of each sensor is: DS18B20 temperature sensor, DJS-1 type platinum black conductance electrode, RY952 dissolved oxygen sensor, E-201-C type PH electrode, turbidity transducer XQS70-928.
The output terminal of each digital sensors is connected with MCU unit respectively, and analog sensor is connected with the multi-channel input of multiway analog switch by a conditioning circuit module, and the output terminal of this multiway analog switch is connected with described MCU unit by A/D module.
Described conditioning circuit module comprises: be suitable for the first modulate circuit be connected with PH electrode sensor, is suitable for the second modulate circuit be connected with platinum black conductance electrode sensor, and is suitable for the 3rd modulate circuit that is connected with dissolved oxygen sensor.
First modulate circuit comprises: the in-phase proportion computing circuit be connected with described PH electrode sensor, the subtraction circuit be connected with this in-phase proportion computing circuit.
Fig. 3 shows the circuit theory diagrams of the second modulate circuit.
As shown in Figure 3, the second modulate circuit comprises: be suitable for the bipolar pulse output circuit producing described platinum black conductance electrode working sensor alternating voltage, and gathers the Full wave shape rectification circuit of platinum black conductance electrode sensor output voltage.
Described bipolar pulse output circuit comprises: the first integrated transporting discharging IC1, the end of oppisite phase of this first integrated transporting discharging IC1 is connected with one end of electric capacity C1, resistance R2 respectively, the in-phase end of the first integrated transporting discharging IC1 is connected with one end of resistance R1, resistance R3 respectively, described resistance R1 is connected and ground connection with the other end of electric capacity C1, described resistance R2 is connected with the output terminal of the first integrated transporting discharging IC1 respectively with the other end of resistance R3, and the output terminal of this first integrated transporting discharging IC1 is as the output terminal of described bipolar pulse output circuit.
Described Full wave shape rectification circuit comprises: the first anti-phase scaling circuit, the output terminal of this first anti-phase scaling circuit is connected with one end of resistance R7 with resistance R6 respectively, the other end of resistance R6 respectively with one end of resistance R8, the negative electrode of the first diode D1 is connected with the end of oppisite phase of the second integrated transporting discharging IC3, the other end of resistance R8 is connected with the anode of the second diode D2, one end of resistance R9 respectively, and the other end of resistance R9 is connected with the other end of resistance R7;
The anode of the first diode D1 is connected with the output terminal of the negative electrode of the second diode D2 and the second integrated transporting discharging IC3;
The other end of resistance R9 is also connected with the end of oppisite phase of the 3rd integrated transporting discharging IC4, is parallel with resistance R11 and electric capacity C2 between the end of oppisite phase of the 3rd integrated transporting discharging IC4 and output terminal.
The in-phase end of the second integrated transporting discharging IC3 is by resistance R10 ground connection, and the in-phase end of the 3rd integrated transporting discharging IC4 is by resistance R12 ground connection.
Described first, second, third integrated transporting discharging IC4 can adopt TL082.
3rd modulate circuit comprises: two-stage in-phase proportion computing circuit, is specially first, second grade of in-phase proportion computing circuit series connection to realize nursing one's health the output signal of dissolved oxygen sensor.
Described Hydrological Data Acquisition device also comprises: the locating module be connected with described MCU unit, and described locating module is suitable for obtaining described Hydrological Data Acquisition device current position information.Wherein, described locating module adopts GPS, and this GPS is connected by serial ports with described MCU unit.In order to obtain the hydrographic information of concrete different test point in the power station that measurement range is wide.
Fig. 4 shows the theory diagram of power module in described Hydrological Data Acquisition device.
For the power station that region is wide, the laying difficulty of supply line is very large, adopting during powered battery needs timing to change battery, add the cost of maintenance to a certain extent, and sun power function not only solves the powerup issue of the network node of outdoor long-time unsupervised, and it is lasting also to have power supply, environmental protection and energy saving and be convenient to the advantages such as maintenance, the preferred embodiment of one as the present embodiment, described Hydrological Data Acquisition device also comprises power module, described power module comprises: solar panel, described solar panel is connected with chargeable lithium cell by charge controller, the output terminal of this chargeable lithium cell is connected with DC-DC change-over circuit by a discharge protection circuit, this power module automatically can manage the charging process of lithium battery and carry out effective stored energy, by avoiding lithium battery over-discharge can to the monitoring of cell voltage, the object of service life of lithium battery is extended, through DC-DC change-over circuit to the stable 3.3v voltage of hydrology data collector each several part long run supply to reach.Wherein, optionally, the output terminal of described chargeable lithium cell and input end can be set to port, i.e. an input/output end port; Also can independently arrange.
Optionally, described wireless module adopts ZigBee module, and namely each Hydrological Data Acquisition device carries out wireless networking by ZigBee module.
Wherein, as the preferred embodiment of one that this is novel, the CC2530 chip of the 2.4GHz radio system of ZigBee technology that what described MCU unit can adopt TI company to produce meet, incorporate ZigBee radio-frequency front-end, internal memory and temperature controller, be applicable to the wireless network node of various ZigBee or similar ZigBee, it is using powerful Integrated Development Environment as support, and the interactive mode debugging of internal wiring is to defer to the IAR industrial standard of IDE for supporting.
Described ZigBee technology room adopts IEEE802.15.4 standard, utilizes the public frequency 2.4GHz that the whole world is available, when being applied to supervision, net control, and the advantages such as the low cost of highly significant, low-power consumption, network node are many, long transmission distance that it has.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to right.
Claims (1)
1. based on a multiparameter Reservoir Water Quality monitoring system for wireless sensor network, it is characterized in that comprising: multiple Hydrological Data Acquisition device, and carry out communication by wireless between each Hydrological Data Acquisition device;
Described Hydrological Data Acquisition device comprises: MCU unit, and the hydrology sensor group be connected with this MCU unit and from radio-cell;
Described MCU unit is suitable for carrying out acquisition and processing according to control hydrology sensor group to corresponding hydrographic information, and by sending described hydrographic information from radio-cell to host computer;
Described hydrology sensor group comprises some digital sensorses and analog sensor, wherein
Digital sensors comprises: temperature sensor and turbidity transducer;
Analog sensor comprises: platinum black conductance electrode sensor, dissolved oxygen sensor and PH electrode sensor;
The output terminal of each digital sensors is connected with MCU unit respectively, and
Analog sensor is connected with the multi-channel input of multiway analog switch by a conditioning circuit module, and the output terminal of this multiway analog switch is connected with described MCU unit by A/D module; Described conditioning circuit module comprises: be suitable for the first modulate circuit be connected with PH electrode sensor, is suitable for the second modulate circuit be connected with platinum black conductance electrode sensor, and is suitable for the 3rd modulate circuit that is connected with dissolved oxygen sensor; Wherein,
First modulate circuit comprises: the in-phase proportion computing circuit be connected with described PH electrode sensor, the subtraction circuit be connected with this in-phase proportion computing circuit;
Second modulate circuit comprises: be suitable for the bipolar pulse output circuit producing described platinum black conductance electrode working sensor alternating voltage, and gathers the Full wave shape rectification circuit of platinum black conductance electrode sensor output voltage;
3rd modulate circuit comprises: two-stage in-phase proportion operational amplification circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805788.9U CN204270489U (en) | 2014-12-17 | 2014-12-17 | A kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420805788.9U CN204270489U (en) | 2014-12-17 | 2014-12-17 | A kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network |
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| CN204270489U true CN204270489U (en) | 2015-04-15 |
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| CN201420805788.9U Expired - Fee Related CN204270489U (en) | 2014-12-17 | 2014-12-17 | A kind of multiparameter Reservoir Water Quality monitoring system based on wireless sensor network |
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