CN206832794U - A kind of LoRaWAN multi-parameter water qualities on-line monitoring system - Google Patents
A kind of LoRaWAN multi-parameter water qualities on-line monitoring system Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model provides a kind of LoRaWAN multi-parameter water qualities on-line monitoring system, including one or more LoRa on-line checkings nodes, one or more LoRa gateway nodes, remote platform and cell phone application application, on-line checking and remote transmission for the multiple-quality water parameter in water body environment.Detection node of the present utility model is low in energy consumption, by using the LoRa modules of low-power consumption and the microprocessor of low-power consumption and regular dormancy, can be used for a long time without frequently changing battery；Detection node cost is low, and the sensor for compensation is only provided in gateway node, is equipped with without each detection node, and system overall cost is low；It is unified on gateway node and carries out compensation operation, it is easy that detection node technology is realized, batch production is convenient.
Description
Technical field
It the utility model is related to multi-parameter water-quality measurement and communication technique field, particularly a kind of LoRaWAN multi-parameters water
Matter on-line monitoring system.
Background technology
Traditional one-parameter or multi-parameter water quality on-line monitoring system typically has two ways, and relatively common one kind is
Aquatic monitoring equipment is equipped with GPRS module（Or other gsm modules）, used with reference to aquatic monitoring sensor, sensor collection is original
Water body signal, after hardware handles and software computing, final engineering value is uploaded to by platform by GPRS, realizes that water quality is joined
Several on-line monitorings.This mode is more universal in the water quality monitoring field of aquaculture, because water body parameter is generally by each
The influence of kind factor, the data gathered by water quality sensor merely can not be substantially all as effective final engineering value
Need the compensation of progress other specification.Which results in each aquatic monitoring equipment except being equipped with corresponding aquatic monitoring sensor
Outside, it is also necessary to be equipped with the sensor for being used for detecting other specification, cause the waste on hardware cost, also increase maintenance difficulties and fortune
Tie up cost.It is exactly atmospheric pressure value than a more prominent parameter, for example, Dissolved Oxygen in Water value, it is necessary to pressure compensation is carried out, it is no
The dissolved oxygen value then detected does not have practical significance.
And this mode due to power consumption it is big, it is general to require to power after power supply adaptor again by civil power, necessarily cause
The increase of the cost such as power supply and power line.What is more important, due to being mains-supplied, for the sake of security, monitoring device is led to
Water surface monitoring point region often is mounted remotely from, and sensor is located in monitoring point, has further elongated sensor and has been set with monitoring
The distance between standby, so as to result in the need for the sensor data cable grown very much, which increases many costs, whole system
Overall cost is very high.
Also another common mode, each aquatic monitoring equipment are also a relatively complete equipment, may collection
Single water body parameter or multiple water body parameters, as above-mentioned first way, after carrying out calculation process, then pass through short distance
The mode of wireless networking is transmitted to data concentrator, finally by the unified remote transmission in a manner of GPRS etc. of data concentrator to flat
Platform.This short-distance wireless networking mode useful ZigBee, WiFi or custom protocol other RF radio-frequency modules, except
Communication distance is partially short outer, equally exists needs and the problem of measuring other specification sensor is being equipped with each monitoring device.
Utility model content
The utility model makes improvement for above-mentioned technical problem, i.e. technical problem to be solved in the utility model is to carry
For a kind of based on LoRaWAN agreements, detection node using battery powered and only transmit original AD parameters, be unified in gateway section
The multi-parameter water quality on-line monitoring system of algorithm computing on point.
In order to solve the above-mentioned technical problem, a kind of technical scheme of the present utility model is：A kind of LoRaWAN multi-parameter water qualities
On-line monitoring system, including one or more LoRa on-line checkings nodes, one or more LoRa gateway nodes, remote platform and
Cell phone application application, for the on-line checking and remote transmission of the multiple-quality water parameter in water body environment, the LoRa on-line checkings
Node includes the first LoRa communication module groups, communicates and connects with the 2nd LoRa communication module groups on the LoRa gateway nodes, institute
Teletransmission communication module group on LoRa gateway nodes is stated to connect with remote platform communication, the cell phone application apply with it is described remote
Journey platform network connects.
Further, the remote platform is also equipped with data management system.
Further, the communication of the first LoRa communication module groups and the 2nd LoRa communication module groups is based on LoRaWAN
Class B-modes.
Further, the temperature and pressure compensation of the multiple-quality water parameter is completed on the LoRa gateway nodes.
Further, the field calibration of the multiple-quality water parameter is answered by button operation or by the cell phone application
With completion.
Further, the LoRa on-line checkings node includes also including DO sensors, EC sensors, pH sensors, ORP
Probe, the first CPU, and be connected with first CPU temperature sensor, A/D modular converters, people
Machine interactive unit, power supply unit.
Further, the DO sensors, the EC sensors, the pH sensors, ORP probes are adjusted with a signal
Circuit connection is managed, the signal conditioning circuit is connected with the A/D modular converters.
Further, said supply unit be respectively the first LoRa communication module groups, first CPU,
The human-computer interaction unit, the A/D modular converters, the temperature sensor, the DO sensors, the EC sensors, institute
State pH sensors, ORP probes, signal conditioning circuit power supply.
Further, said supply unit includes disposable lithium cell and line related management circuit, the power management
Circuit output 3.3VDC DC voltages, the high capacity cell of the preferred 3.6V of disposable lithium cell.
Further, the LoRa on-line checkings node is adopted using the mode of operation of periodic awakening or wake instruction non-
Collection is with during communication, handling dormancy holding state.
Further, the DO sensors are a kind of dissolved oxygen sensors, preferably the electrochemical dissolution oxygen of galvanic principles
Sensor, the electrochemical dissolution lambda sensor of the galvanic principles is also built-in with thermo-compensator, using negative temperature coefficient
NTC thermistor.
Further, the operation principle of the electrochemical dissolution lambda sensor is：The dissolved oxygen of water body is in the electrochemistry
Negative electrode, anode built in dissolved oxygen sensor and under the collective effect of electrolyte, produce chemical reaction, so as to produce faint electricity
Stream, the weak current are directly proportional to the dissolved oxygen content of water body.
Further, the weak current is converted to mV voltages by the NTC thermistor, meanwhile, water temperature change
The change in resistance of the NTC thermistor will be caused, and also directly reaction is on the voltage for this change, it is achieved thereby that water
Hardware preliminary compensation function of the temperature to dissolved oxygen sensing.
As optional embodiment, the DO sensors can also be using optical principle dissolved oxygen sensor or
The electrochemical dissolution lambda sensor of polarography principle, can for substituting the electrochemical dissolution lambda sensor of the galvanic principles
Effect is realized with the technology for reaching similar.
Further, the mV voltage signals of the pH Sensor output linearities, water pH value and the mV voltage signals into
Direct ratio.
Further, the EC sensors are to use water salinity sensor.
Further, ORP probe is oxidation-reduction potential electrode, by the signal conditioning circuit by monitoring signals
Linear mV voltage signals are converted to, the oxidation-reduction potential of water body is directly proportional to the mV voltage signals.
As optional embodiment, the salinity sensor can be substituted with conductivity sensor, by using water body
Conductivity parameters, and used after being converted into salinity parameter value by formula.
Further, the DO sensors form a compound dissolved oxygen electrode with the temperature sensor.
Further, first CPU is to use a kind of microprocessor of low-power consumption.
Further, the STM32L152 series microprocessors of the preferred ARM kernels of the microprocessor of the low-power consumption.
Further, the preferred model DS18B20 of temperature sensor bus-type temperature sensor, with described first
CPU is connected with bus mode, and first CPU is directly by instructing the acquisition DS18B20 to adopt
The temperature value for collecting and having stored.
Further, the DO sensors, the EC sensors, the pH sensors and the biography of ORP probe collections
Sensor signal is all uniformly processed by the signal conditioning circuit, is converted into millivolt（mV）Voltage signal, further filtering
After involving enhanced processing, the mV voltage signals are sent into the A/D modular converters and are AD converted.
Further, the A/D modular converters preferably two model ADS1115's has the high-precision of 16 bit resolutions
Spend analog-digital converter.
Yet further, the DO sensors, the EC sensors, the pH sensors and ORP probes are passing through
After the signal conditioning circuit processing, the difference mV signals of single channel are produced respectively, difference mV signals share one described in per two-way
The AD conversion module of the model ADS1115.
Further, the human-computer interaction unit includes button, the preliminary calibration for sensor signal.
Further, the LoRa gateway nodes include power subsystem, the second CPU, and with described second
2nd LoRa communication module groups of Central Processing Unit electrical connection, teletransmission communication module group, Alarm Unit, barometric pressure sensor, display
And push-button unit.
Further, the power subsystem be respectively the 2nd LoRa communication module groups, it is the teletransmission communication module group, described
Alarm Unit, the barometric pressure sensor, the display and push-button unit power supply.
Further, the teletransmission communication module group is bi-directionally connected with the remote platform, for determining to the remote platform
Phase transmission of monitoring data receive the operational order from the remote platform.
Further, the teletransmission communication module group is using in support GPRS, 3G, 4G, NB-IoT or eMTC communications regime
Single mode or multimode communication module group.
Further, the teletransmission communication module group also includes communication module, eSIM cards and antenna, and the eSIM cards use
The special number section of Internet of Things.
Further, the preferred model BMP085 of the barometric pressure sensor digital baroceptor, it is described
BMP085 baroceptors are connected by iic bus interface with second CPU.
Further, the Alarm Unit includes acousto-optic device, for detect data exception or it is other abnormal when send sound
Light alarm signal.
Further, the display and push-button unit include liquid crystal display and key circuit, for System menu and parameter
Selection and setting and the display directly perceived of various parameter values for detection.
Further, the microprocessor of the ARM kernels of the preferably molded-in memory cell of the second CPU, use
Model STM32L152 microprocessors.
Further, the communication of the LoRa on-line checkings node and the LoRa gateway nodes uses time division multiple acess side
Formula.
Further, the time division multiple acess communication modes are preferably based on LoRaWAN Class B-modes.
Further, when system works, the LoRa on-line checkings node carries out networking, institute with the LoRa gateway nodes
State LoRa on-line checkings node and enter resting state, the LoRa gateway nodes enter readiness for operation, detect and wait week
Phase sexual behavior part arrives, the LoRa on-line checkings node periodic wakeup, gathered data and monitoring wireless instruction, the LoRa nets
Artis taken at regular intervals atmospheric value, and data polling, the LoRa periodically are carried out to the LoRa on-line checkings node in net
On-line checking node response data poll instruct, by many kinds of parameters value collected transmitted in a manner of LoRaWAN communications protocol to
The LoRa gateway nodes, resting state is then reentered, what the LoRa gateway nodes were unified to all parameter values
Temperature-compensating and pressure compensation, and various computings and amendment are carried out, obtain the final of all LoRa on-line checkings nodes
Survey engineering value, while stored and shown, and abnormality alarming, and remotely put down with described by the teletransmission communication module group
Platform connects, and all final survey engineering values is uploaded, eventually through the cell phone application application query related test results.
Yet further, described LoRa on-line checkings node taken at regular intervals water body DO, EC, pH, ORP primary signal, enters
Row hardware handles and AD conversion, and water temperature value is directly obtained, and the LoRa gateway nodes are sent to, the LoRa nets
The data that artis is sent according to each LoRa on-line checkings node, and by the calibration of the corresponding storage of address sort
Parameter carries out computing, compensation and amendment.
Compared with prior art, the utility model has the advantages that：
（1）Detection node is low in energy consumption, using the LoRa modules of low-power consumption and the microprocessor of low-power consumption and regular dormancy, no
It can be used for a long time with frequent battery of changing, it is more convenient and swift than external power supply；
（2）Detection node cost is low, and the sensor for compensation is only provided in gateway node, without each detection node
All it is equipped with；
（3）System overall cost is low, place water in sensor and detection node equipment between data wire it is very short, also without
It need to give detection node external very long power line；
（4）LoRa communication distances are remote, compared with other short distance communication modes, it is possible to reduce router or repeater are opened
Branch；
（5）It is unified on gateway node and carries out compensation operation, it is easy that detection node technology is realized, without the algorithm school of complexity
Just, batch production is convenient；
（6）The communication modes that gateway node carries out data remote are various, support that communication signal coverage rate is wider and concurrently connects
Connect the big protenchyma combined network communication of several capacity, it is possible to reduce the defects of traditional GPRS communication modes.
Brief description of the drawings
Fig. 1 is the circuit structure block diagram of the detection node of the utility model embodiment.
Fig. 2 is the circuit structure block diagram of the gateway node of the utility model embodiment.
Fig. 3 is the system architecture schematic diagram of the on-line monitoring system of the utility model embodiment.
In Fig. 1：The LoRa communication module groups of 1- the first, the CPU of 2- first, 3- human-computer interactions unit, 4-A/D conversions
Module, 5- temperature sensors, 6-DO sensors, 7-EC sensors, 7-EC sensors, 8-pH sensors, 9-ORP probes, 10 letters
Number modulate circuit, 11- power supply units.
In Fig. 2：The CPU of 12- second, the LoRa communication module groups of 13- the 2nd, 14- teletransmissions communication module group, 15- alarms
Unit, 16- barometric pressure sensor, 17- is shown and push-button unit, 18- power subsystems.
Embodiment
The required accompanying drawing used in embodiment or description of the prior art will be briefly described below, show and
Easy insight, described embodiment are part of the embodiment of the present utility model, and accompanying drawing is some embodiment party of the present utility model
Formula, for those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Obtain the accompanying drawing of other forms.
It should be noted that unless otherwise clearly defined and limited, term " connection ", " phase in this specification description
Even ", " installation " should be interpreted broadly, for example, it may be being integrally connected, being fixedly connected or being detachably connected；Can be
It is directly connected to by mechanical structure or electronics or is indirectly connected by intermediary.
See Fig. 3, and with reference to shown in Fig. 1 and Fig. 2, a kind of LoRaWAN multi-parameter water qualities on-line monitoring system, including one or
Multiple LoRa on-line checkings nodes, one or more LoRa gateway nodes, remote platform and cell phone application application, for water body ring
The on-line checking and remote transmission of multiple-quality water parameter in border, the LoRa on-line checkings node include the first LoRa communications
The 2nd LoRa communication module groups 13 communication on module 1, with the LoRa gateway nodes connects, remote on the LoRa gateway nodes
Pass communication module group 14 to connect with remote platform communication, the cell phone application is applied and the remote platform network connection.
In the present embodiment, each on-line monitoring system is deployed with one or more LoRa on-line checkings nodes,
And one or more LoRa gateway nodes, the LoRa on-line checkings node and the LoRa gateway nodes connect automatically, and
And mutually respective backup communication path, it is described in time slot in turn by wireless data using time division multiple acess communication modes
LoRa on-line checkings node in the internetwork roaming of multiple LoRa gateway nodes, can increase the reliability of communication.
In the present embodiment, the LoRa on-line checkings node is equipped with corresponding water body measurement sensor or spy
Head, after water body parameter is collected, without the algorithm computing for further carrying out quantities, original AD data values are only sent, and
Each packet synchronously includes the temperature value of current water body, and the LoRa gateway nodes uniformly gather current environment atmospheric pressure
Power, with reference to the water temperature value of corresponding each LoRa on-line checkings node, carry out unified algorithm computing, including temperature
Compensation or pressure compensation, in combination with calibration parameter, further amendment, obtains final parameter engineering value.
As shown in figure 1, in the present embodiment, the LoRa on-line checkings node includes also including DO sensors 6, EC sensings
Device 7, pH sensors 8, ORP the 9, first CPU 2 of probe, and the temperature being connected with first CPU 2
Sensor 5, A/D modular converters 4, human-computer interaction unit 3, power supply unit 11.
In the present embodiment, the DO sensors 6, the EC sensors 7, the pH sensors 8, the ORP probe 9 with
One signal conditioning circuit 10 is connected, and the signal conditioning circuit 10 is connected with the A/D modular converters 4.
In the present embodiment, said supply unit 11 is respectively the first LoRa communication module groups 1, first centre
Manage unit 2, the human-computer interaction unit 3, the A/D modular converters 4, the temperature sensor 5, the DO sensors 6, described
EC sensors 7, the pH sensors 8, ORP probes 9, the signal conditioning circuit 10 are powered.
In the present embodiment, said supply unit 11 includes disposable lithium cell and line related management circuit, the electricity
Power management circuits export 3.3VDC DC voltages, and the disposable lithium cell uses 3.6V high capacity cell.
In the present embodiment, the LoRa on-line checkings node uses the mode of operation of periodic awakening or wake instruction,
During non-acquired and communication, dormancy holding state is handled.
In the present embodiment, the DO sensors 6 are a kind of dissolved oxygen sensors, molten using the electrochemistry of galvanic principles
Lambda sensor is solved, the electrochemical dissolution lambda sensor of the galvanic principles is also built-in with thermo-compensator, using negative temperature
The NTC thermistor of coefficient.
In the present embodiment, the operation principle of the electrochemical dissolution lambda sensor is：The dissolved oxygen of water body is in the electricity
Negative electrode, anode built in chemolysis lambda sensor and under the collective effect of electrolyte, produce chemical reaction, micro- so as to produce
Weak current, the weak current are directly proportional to the dissolved oxygen content of water body.
In the present embodiment, the weak current is converted to mV voltages by the NTC thermistor, meanwhile, water temperature
Change will cause the change in resistance of the NTC thermistor, and also directly reaction is on the voltage for this change, so as to realize
Hardware preliminary compensation function of the water temperature to dissolved oxygen sensing.
As optional embodiment, the DO sensors 6 can also be using optical principle dissolved oxygen sensor or
The electrochemical dissolution lambda sensor of person's polarography principle, for substituting the electrochemical dissolution lambda sensor of the galvanic principles,
The technology that can reach similar realizes effect.
In the present embodiment, the mV voltage signals of the output linearity of pH sensors 8, water pH value are believed with the mV voltages
It is number directly proportional.
In the present embodiment, the EC sensors 7 are to use water salinity sensor.
In the present embodiment, the ORP probes 9 are oxidation-reduction potential electrodes, will by the signal conditioning circuit 10
Monitoring signals are converted to linear mV voltage signals, and the oxidation-reduction potential of water body is directly proportional to the mV voltage signals.
As optional embodiment, the salinity sensor can be substituted with conductivity sensor, by using water body
Conductivity parameters, and used after being converted into salinity parameter value by formula.
In the present embodiment, the DO sensors 6 form a compound dissolved oxygen electrode with the temperature sensor 5.
In the present embodiment, first CPU 2 is to use a kind of microprocessor of low-power consumption.
In the present embodiment, the microprocessor of the low-power consumption uses the STM32L152 series microprocessors of ARM kernels.
In the present embodiment, the temperature sensor 5 uses model DS18B20 bus-type temperature sensor, with institute
State the first CPU 2 to connect with bus mode, first CPU 2 is directly by instructing described in acquisition
The temperature value that DS18B20 is gathered and stored.
In the present embodiment, the DO sensors 6, the EC sensors 7, the pH sensors 8 and ORP probes 9
The sensor signal of collection is all uniformly processed by the signal conditioning circuit 10, is converted into millivolt（mV）Voltage signal,
After further filtering and enhanced processing, the mV voltage signals are sent into the A/D modular converters 4 and are AD converted.
In the present embodiment, two model ADS1115's of the use of A/D modular converters 4 has 16 bit resolutions
High-precision adc.
In the present embodiment, the DO sensors 6, the EC sensors 7, the pH sensors 8 and ORP probes 9
After the signal conditioning circuit 10 processing, the difference mV signals of single channel, difference mV signals described in per two-way are produced respectively
Share model ADS1115 AD conversion module.
In the present embodiment, the human-computer interaction unit 3 includes button, the preliminary calibration for sensor signal.
As shown in Fig. 2 in the present embodiment, the LoRa gateway nodes include power subsystem 18, the second central processing list
Member 2, and electrically connect with second CPU 2 the 2nd LoRa communication module groups 13, teletransmission communication module group 14, alarm singly
Member 15, barometric pressure sensor 16, display and push-button unit 17.
In the present embodiment, the power subsystem 18 is respectively the 2nd LoRa communication module groups 13, teletransmission communication
Module 14, the Alarm Unit 15, the barometric pressure sensor 16, the display and push-button unit 17 are powered.
In the present embodiment, the teletransmission communication module group 14 is bi-directionally connected with the remote platform, for described long-range
Platform periodic transmission Monitoring Data receives the operational order from the remote platform.
In the present embodiment, the teletransmission communication module group 14 is using support GPRS, 3G, 4G, NB-IoT or eMTC communication system
Single mode or multimode communication module group in formula.
In the present embodiment, the teletransmission communication module group 14 also includes communication module, eSIM cards and antenna, the eSIM
Card uses the special number section of Internet of Things.
As a kind of optional embodiment, the eSIM cards can be replaced with common SIM cards, eSIM as described herein
Card or SIM card are a kind of general designation, can be the SIM card of physical medium or soft SIM.
In the present embodiment, the barometric pressure sensor 16 uses model BMP085 digital baroceptor,
The BMP085 baroceptors are connected by iic bus interface with second CPU 2.
In the present embodiment, the Alarm Unit 15 includes acousto-optic device, for detect data exception or it is other abnormal when
Send audible and visual alarm signal.
In the present embodiment, the display and push-button unit 17 include liquid crystal display and key circuit, for System menu
And parameter selection and setting and the display directly perceived of various parameter values for detection.
In the present embodiment, second CPU 2 uses the microprocessor of the ARM kernels of built-in storage unit
Device, using model STM32L152 microprocessors.
In the present embodiment, the communication of the LoRa on-line checkings node and the LoRa gateway nodes uses time division multiple acess
Mode.
In the present embodiment, the time division multiple acess communication modes use and are based on LoRaWAN Class B-modes.
In the present embodiment, detection node of the present utility model is low in energy consumption, by using the LoRa modules of low-power consumption and low
The microprocessor of power consumption and regular dormancy, it can be used for a long time without frequently changing battery, it is more convenient and swift than external power supply；Inspection
Survey node cost is low, and the sensor for compensation is only provided in gateway node, is equipped with without each detection node；System is whole
Body low cost, the data wire placed between sensor and the detection node equipment in water is very short, without external to detection node
Very long power line；LoRa communication distances are remote, compared with other short distance communication modes, it is possible to reduce router or repeater are opened
Branch；It is unified on gateway node and carries out compensation operation, it is easy that detection node technology is realized, is corrected without the algorithm of complexity, batch
It is convenient for production；The communication modes that gateway node carries out data remote are various, support that communication signal coverage rate is wider and concurrently connects
The big protenchyma combined network communication of number capacity, it is possible to reduce the defects of traditional GPRS communication modes.
Preferred embodiment of the present utility model is the foregoing is only, anyone can obtain under enlightenment of the present utility model
Go out other various forms of LoRaWAN multi-parameter water qualities on-line monitoring systems, it is all to be done according to present utility model application the scope of the claims
Equivalent changes and modifications, should all belong to covering scope of the present utility model.
Claims (8)
1. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system, including one or more LoRa on-line checkings nodes, one or
Multiple LoRa gateway nodes, remote platform and cell phone application application, the on-line checking for the multiple-quality water parameter in water body environment
And remote transmission, it is characterised in that the LoRa on-line checkings node includes the first LoRa communication module groups（1）, it is and described
The 2nd LoRa communication module groups on LoRa gateway nodes（13）Communication connects, the teletransmission communication module group on the LoRa gateway nodes
（14）Communicate and connect with the remote platform, the cell phone application is applied and the remote platform network connection；
The first LoRa communication module groups（1）With the 2nd LoRa communication module groups（13）Communication be based on LoRaWAN Class B moulds
Formula；
The temperature and pressure compensation of the multiple-quality water parameter is completed on the LoRa gateway nodes；
The field calibration of the multiple-quality water parameter is completed by button operation or by cell phone application application.
2. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 1, it is characterised in that described
LoRa on-line checkings node includes also including DO sensors（6）, EC sensors（7）, pH sensors（8）, ORP probe（9）, first
CPU（2）, and with first CPU（2）The temperature sensor of connection（5）, A/D modular converters
（4）, human-computer interaction unit（3）, power supply unit（11）；
The DO sensors（6）, the EC sensors（7）, the pH sensors（8）, ORP probe（9）Adjusted with a signal
Manage circuit（10）Connection, the signal conditioning circuit（10）With the A/D modular converters（4）Connection；
Said supply unit（11）Respectively described first LoRa communication module groups（1）, first CPU（2）, institute
State human-computer interaction unit（3）, the A/D modular converters（4）, the temperature sensor（5）, the DO sensors（6）, the EC
Sensor（7）, the pH sensors（8）, ORP probe（9）, the signal conditioning circuit（10）Power supply.
A kind of 3. LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 2, it is characterised in that the DO
Sensor（6）With the temperature sensor（5）Form a compound dissolved oxygen electrode.
4. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 2, it is characterised in that described
One CPU（2）It is to use a kind of microprocessor of low-power consumption.
5. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 1, it is characterised in that described
LoRa gateway nodes include power subsystem（18）, the second CPU（2）, and with second CPU（2）
2nd LoRa communication module groups of electrical connection（13）, teletransmission communication module group（14）, Alarm Unit（15）, barometric pressure sensor
（16）, display and push-button unit（17）；
The power subsystem（18）Respectively described 2nd LoRa communication module groups（13）, the teletransmission communication module group（14）, it is described
Alarm Unit（15）, the barometric pressure sensor（16）, the display and push-button unit（17）Power supply.
6. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 5, it is characterised in that described remote
Pass communication module group（14）It is bi-directionally connected with the remote platform, for the remote platform periodic transmission Monitoring Data or connecing
Receive the operational order from the remote platform.
7. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 5, it is characterised in that described remote
Pass communication module group（14）Using single mode or multimode the communication mould supported in GPRS, 3G, 4G, NB-IoT or eMTC communications regime
Group.
8. a kind of LoRaWAN multi-parameter water qualities on-line monitoring system according to claim 1, it is characterised in that described
The communication of LoRa on-line checkings node and the LoRa gateway nodes uses time division multiple access way.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132329A (en) * | 2017-06-27 | 2017-09-05 | 福建强闽信息科技有限公司 | A kind of LoRaWAN multi-parameter water qualities on-line monitoring system and method |
| CN112118317A (en) * | 2020-09-18 | 2020-12-22 | 广东电网有限责任公司电力科学研究院 | Substation cable trench fire monitoring system based on LoRaWAN technology |
-
2017
- 2017-06-27 CN CN201720754736.7U patent/CN206832794U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132329A (en) * | 2017-06-27 | 2017-09-05 | 福建强闽信息科技有限公司 | A kind of LoRaWAN multi-parameter water qualities on-line monitoring system and method |
| CN112118317A (en) * | 2020-09-18 | 2020-12-22 | 广东电网有限责任公司电力科学研究院 | Substation cable trench fire monitoring system based on LoRaWAN technology |
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